{"id":6460,"date":"2026-10-26T05:53:34","date_gmt":"2026-10-26T05:53:34","guid":{"rendered":"https:\/\/www.shen-chong.com\/?p=6460"},"modified":"2026-10-26T07:48:48","modified_gmt":"2026-10-26T07:48:48","slug":"4-roller-bending-working-principle-and-equipment-features","status":"publish","type":"post","link":"https:\/\/www.shen-chong.com\/fr\/4-roller-bending-working-principle-and-equipment-features\/","title":{"rendered":"Principe de fonctionnement et caract\u00e9ristiques de l&#039;\u00e9quipement de cintrage \u00e0 4 rouleaux"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"6460\" class=\"elementor elementor-6460\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-719f47e elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"719f47e\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container 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.elementor-toc__header-title{color:var(--header-color)}.elementor-widget-table-of-contents.elementor-toc--collapsed .elementor-toc__toggle-button--collapse,.elementor-widget-table-of-contents:not(.elementor-toc--collapsed) .elementor-toc__toggle-button--expand{display:none}.elementor-widget-table-of-contents .elementor-widget-container{min-height:var(--box-min-height);border:var(--box-border-width,1px) solid var(--box-border-color,#9da5ae);border-radius:var(--box-border-radius,3px);background-color:var(--box-background-color);transition:min-height .4s;overflow:hidden}.elementor-toc__header{display:flex;align-items:center;justify-content:space-between;padding:var(--box-padding,20px);background-color:var(--header-background-color);border-bottom:var(--separator-width,1px) solid var(--box-border-color,#9da5ae)}.elementor-toc__header-title{font-size:18px;margin:0;color:var(--header-color)}.elementor-toc__toggle-button{cursor:pointer;display:inline-flex}.elementor-toc__toggle-button 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.elementor-toc__list-item-text{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.elementor-toc__list-items--collapsible>.elementor-toc__list-wrapper>.elementor-toc__list-item>.elementor-toc__list-wrapper{display:none}.elementor-toc__heading-anchor{position:absolute}.elementor-toc__body .elementor-toc__list-item-text{color:var(--item-text-color);-webkit-text-decoration:var(--item-text-decoration);text-decoration:var(--item-text-decoration)}.elementor-toc__body .elementor-toc__list-item-text:hover{color:var(--item-text-hover-color);-webkit-text-decoration:var(--item-text-hover-decoration);text-decoration:var(--item-text-hover-decoration)}.elementor-toc__body .elementor-toc__list-item-text.elementor-item-active{color:var(--item-text-active-color);-webkit-text-decoration:var(--item-text-active-decoration);text-decoration:var(--item-text-active-decoration)}ol.elementor-toc__list-wrapper{counter-reset:item}ol.elementor-toc__list-wrapper .elementor-toc__list-item{counter-increment:item}ol.elementor-toc__list-wrapper .elementor-toc__list-item-text-wrapper:before{content:counters(item,\".\") \". \"}<\/style>\t\t<div class=\"elementor-toc__header\">\n\t\t\t<h3 class=\"elementor-toc__header-title\">\n\t\t\t\tTable des mati\u00e8res\t\t\t<\/h3>\n\t\t\t\t\t\t\t<div class=\"elementor-toc__toggle-button elementor-toc__toggle-button--expand\" role=\"button\" tabindex=\"0\" aria-controls=\"elementor-toc__220ee7a\" aria-expanded=\"true\" aria-label=\"Ouvrir la table des mati\u00e8res\"><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-chevron-down\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M207.029 381.476L12.686 187.132c-9.373-9.373-9.373-24.569 0-33.941l22.667-22.667c9.357-9.357 24.522-9.375 33.901-.04L224 284.505l154.745-154.021c9.379-9.335 24.544-9.317 33.901.04l22.667 22.667c9.373 9.373 9.373 24.569 0 33.941L240.971 381.476c-9.373 9.372-24.569 9.372-33.942 0z\"><\/path><\/svg><\/div>\n\t\t\t\t<div class=\"elementor-toc__toggle-button elementor-toc__toggle-button--collapse\" role=\"button\" tabindex=\"0\" aria-controls=\"elementor-toc__220ee7a\" aria-expanded=\"true\" aria-label=\"Fermer la table des mati\u00e8res\"><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-chevron-up\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M240.971 130.524l194.343 194.343c9.373 9.373 9.373 24.569 0 33.941l-22.667 22.667c-9.357 9.357-24.522 9.375-33.901.04L224 227.495 69.255 381.516c-9.379 9.335-24.544 9.317-33.901-.04l-22.667-22.667c-9.373-9.373-9.373-24.569 0-33.941L207.03 130.525c9.372-9.373 24.568-9.373 33.941-.001z\"><\/path><\/svg><\/div>\n\t\t\t\t\t<\/div>\n\t\t<div id=\"elementor-toc__220ee7a\" class=\"elementor-toc__body\">\n\t\t\t<div class=\"elementor-toc__spinner-container\">\n\t\t\t\t<svg class=\"elementor-toc__spinner eicon-animation-spin e-font-icon-svg e-eicon-loading\" aria-hidden=\"true\" viewbox=\"0 0 1000 1000\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M500 975V858C696 858 858 696 858 500S696 142 500 142 142 304 142 500H25C25 237 238 25 500 25S975 237 975 500 763 975 500 975Z\"><\/path><\/svg>\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-3615f8b elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"3615f8b\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-41b7c20\" data-id=\"41b7c20\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-fb8e3b5 elementor-widget elementor-widget-text-editor\" data-id=\"fb8e3b5\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.20.0 - 13-03-2024 *\/\n.elementor-widget-text-editor.elementor-drop-cap-view-stacked .elementor-drop-cap{background-color:#69727d;color:#fff}.elementor-widget-text-editor.elementor-drop-cap-view-framed .elementor-drop-cap{color:#69727d;border:3px solid;background-color:transparent}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap{margin-top:8px}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap-letter{width:1em;height:1em}.elementor-widget-text-editor .elementor-drop-cap{float:left;text-align:center;line-height:1;font-size:50px}.elementor-widget-text-editor .elementor-drop-cap-letter{display:inline-block}<\/style>\t\t\t\t<p>Le cintrage par rouleaux \u00e0 4 rouleaux est une m\u00e9thode couramment utilis\u00e9e pour la mise en forme des t\u00f4les m\u00e9talliques. Il exploite la rotation des rouleaux de la machine, le serrage de la t\u00f4le et le mouvement vertical des rouleaux lat\u00e9raux pour induire une d\u00e9formation plastique progressive d&#039;une t\u00f4le plane, lui donnant ainsi la forme de cylindres, d&#039;arcs, de sections coniques ou d&#039;autres pi\u00e8ces courbes.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-22dd075 elementor-widget elementor-widget-text-editor\" data-id=\"22dd075\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Compar\u00e9e aux cintreuses traditionnelles \u00e0 trois rouleaux, la cintreuse \u00e0 quatre rouleaux offre plusieurs avantages distincts\u00a0: elle ne n\u00e9cessite qu\u2019une seule configuration, permet le pr\u00e9-cintrage des deux extr\u00e9mit\u00e9s, autorise le laminage continu, pr\u00e9sente un degr\u00e9 d\u2019automatisation plus \u00e9lev\u00e9 et offre un contr\u00f4le sup\u00e9rieur sur la rondeur de la pi\u00e8ce et la r\u00e9p\u00e9tabilit\u00e9 du processus de formage.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-03649f7 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"03649f7\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-e07e26c\" data-id=\"e07e26c\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-e920b38 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" 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elementor-section-height-default elementor-section-height-default\" data-id=\"1e0485d\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-f2f874f\" data-id=\"f2f874f\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-68530e5 elementor-widget elementor-widget-heading\" data-id=\"68530e5\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.20.0 - 13-03-2024 *\/\n.elementor-heading-title{padding:0;margin:0;line-height:1}.elementor-widget-heading .elementor-heading-title[class*=elementor-size-]>a{color:inherit;font-size:inherit;line-height:inherit}.elementor-widget-heading .elementor-heading-title.elementor-size-small{font-size:15px}.elementor-widget-heading .elementor-heading-title.elementor-size-medium{font-size:19px}.elementor-widget-heading .elementor-heading-title.elementor-size-large{font-size:29px}.elementor-widget-heading .elementor-heading-title.elementor-size-xl{font-size:39px}.elementor-widget-heading .elementor-heading-title.elementor-size-xxl{font-size:59px}<\/style><h2 class=\"elementor-heading-title elementor-size-default\">1. Concepts de base du processus de cintrage \u00e0 4 rouleaux<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e767241 elementor-widget elementor-widget-text-editor\" data-id=\"e767241\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Le proc\u00e9d\u00e9 de cintrage \u00e0 quatre rouleaux utilise quatre rouleaux de travail, chacun ayant une fonction sp\u00e9cifique, pour appliquer une force de serrage, une force motrice par frottement et des moments de flexion \u00e0 une plaque m\u00e9tallique. Ce proc\u00e9d\u00e9 transforme la plaque plane en un arc ou un cylindre pr\u00e9sentant une courbure d\u00e9finie.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c6e0896 elementor-widget elementor-widget-text-editor\" data-id=\"c6e0896\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Une cintreuse \u00e0 quatre rouleaux se compose g\u00e9n\u00e9ralement d&#039;un rouleau sup\u00e9rieur, d&#039;un rouleau inf\u00e9rieur, de rouleaux lat\u00e9raux gauche et droit, d&#039;un syst\u00e8me d&#039;entra\u00eenement hydraulique, d&#039;un syst\u00e8me de transmission principal, d&#039;un ch\u00e2ssis de machine, d&#039;un syst\u00e8me de commande num\u00e9rique (CNC) et de dispositifs de protection de s\u00e9curit\u00e9.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-145c730 elementor-widget elementor-widget-image\" data-id=\"145c730\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.20.0 - 13-03-2024 *\/\n.elementor-widget-image{text-align:center}.elementor-widget-image a{display:inline-block}.elementor-widget-image a img[src$=\".svg\"]{width:48px}.elementor-widget-image img{vertical-align:middle;display:inline-block}<\/style>\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"446\" height=\"600\" src=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2026\/10\/4-Roller-Bending-Process-Working-Principle.jpg\" class=\"attachment-large size-large wp-image-6464\" alt=\"Principe de fonctionnement du processus de cintrage \u00e0 4 rouleaux\" srcset=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2026\/10\/4-Roller-Bending-Process-Working-Principle.jpg 446w, https:\/\/www.shen-chong.com\/wp-content\/uploads\/2026\/10\/4-Roller-Bending-Process-Working-Principle-223x300.jpg 223w, https:\/\/www.shen-chong.com\/wp-content\/uploads\/2026\/10\/4-Roller-Bending-Process-Working-Principle-9x12.jpg 9w\" sizes=\"(max-width: 446px) 100vw, 446px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-40532a3 elementor-widget elementor-widget-heading\" data-id=\"40532a3\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">1) Configuration d&#039;une cintreuse \u00e0 quatre rouleaux typique<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9343be7 elementor-widget elementor-widget-text-editor\" data-id=\"9343be7\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<table><tbody><tr><td width=\"124\"><p>Composants principaux<\/p><\/td><td width=\"178\"><p>Fonctions et r\u00f4les<\/p><\/td><\/tr><tr><td width=\"124\"><p>Rouleau sup\u00e9rieur<\/p><\/td><td width=\"178\"><p>Il sert de support de formage principal et fonctionne de concert avec le rouleau inf\u00e9rieur pour serrer la t\u00f4le.<\/p><\/td><\/tr><tr><td width=\"124\"><p>Rouleau inf\u00e9rieur<\/p><\/td><td width=\"178\"><p>Applique une pression ascendante pour serrer la t\u00f4le et, en coordination avec le syst\u00e8me d&#039;entra\u00eenement, facilite l&#039;alimentation en mat\u00e9riau.<\/p><\/td><\/tr><tr><td width=\"124\"><p>Roulement \u00e0 gauche<\/p><\/td><td width=\"178\"><p>Effectue un pr\u00e9-cintrage \u00e0 une extr\u00e9mit\u00e9 (selon le sens de laminage) ou participe au processus de laminage circulaire<\/p><\/td><\/tr><tr><td width=\"124\"><p>Roulement \u00e0 droite<\/p><\/td><td width=\"178\"><p>Effectue un pr\u00e9-cintrage \u00e0 l&#039;extr\u00e9mit\u00e9 oppos\u00e9e et r\u00e9alise un laminage circulaire continu<\/p><\/td><\/tr><tr><td width=\"124\"><p>Syst\u00e8me hydraulique<\/p><\/td><td width=\"178\"><p>R\u00e9gule le mouvement vertical des rouleaux, le positionnement des rouleaux lat\u00e9raux et la force de serrage.<\/p><\/td><\/tr><tr><td width=\"124\"><p>Syst\u00e8me d&#039;entra\u00eenement principal<\/p><\/td><td width=\"178\"><p>Entra\u00eene la rotation des rouleaux pour permettre l&#039;alimentation continue de la t\u00f4le.<\/p><\/td><\/tr><tr><td width=\"124\"><p>Syst\u00e8me CNC<\/p><\/td><td width=\"178\"><p>G\u00e8re le positionnement des rouleaux, les programmes de traitement et les param\u00e8tres du processus de laminage<\/p><\/td><\/tr><tr><td width=\"124\"><p>M\u00e9canisme d&#039;inclinaison\/d&#039;abaissement<\/p><\/td><td width=\"178\"><p>Permet le d\u00e9gagement de l&#039;extr\u00e9mit\u00e9 sup\u00e9rieure du rouleau lors du d\u00e9chargement, facilitant ainsi le retrait du cylindre lamin\u00e9.<\/p><\/td><\/tr><\/tbody><\/table>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0200133 elementor-widget elementor-widget-text-editor\" data-id=\"0200133\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Des diff\u00e9rences existent entre les fabricants concernant le nombre de rouleaux d&#039;entra\u00eenement, les configurations des circuits hydrauliques, les m\u00e9thodes de synchronisation des rouleaux lat\u00e9raux et les configurations des syst\u00e8mes CNC ; par cons\u00e9quent, les sp\u00e9cifications fonctionnelles r\u00e9elles doivent \u00eatre d\u00e9termin\u00e9es sur la base de la proposition technique sp\u00e9cifique de l&#039;\u00e9quipement.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a38f6e8 elementor-widget elementor-widget-heading\" data-id=\"a38f6e8\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">2) Principes m\u00e9caniques du pliage \u00e0 quatre rouleaux<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-81dba34 elementor-widget elementor-widget-text-editor\" data-id=\"81dba34\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Le pliage \u00e0 4 rouleaux est essentiellement un processus de d\u00e9formation plastique et de formage des plaques m\u00e9talliques.<\/p><p>Lorsqu&#039;une plaque m\u00e9tallique p\u00e9n\u00e8tre dans l&#039;espace entre les rouleaux sup\u00e9rieur et inf\u00e9rieur, le rouleau inf\u00e9rieur exerce une force de serrage. Le syst\u00e8me d&#039;entra\u00eenement principal propulse la plaque vers l&#039;avant, tandis que les rouleaux lat\u00e9raux appliquent une force de flexion, induisant un moment de flexion dans le mat\u00e9riau.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b9b432b elementor-widget elementor-widget-text-editor\" data-id=\"b9b432b\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Une fois que la contrainte de flexion d\u00e9passe la limite d&#039;\u00e9lasticit\u00e9 du mat\u00e9riau, la plaque subit une d\u00e9formation plastique, conservant une courbure sp\u00e9cifique m\u00eame apr\u00e8s la suppression de la charge.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-54507d9 elementor-widget elementor-widget-text-editor\" data-id=\"54507d9\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><strong><b>Le processus de base peut \u00eatre r\u00e9sum\u00e9 comme suit\u00a0:<\/b><\/strong><\/p><p>Pincement et alimentation<\/p><p>\u2193<\/p><p>Appliquer une pression par rouleaux lat\u00e9raux<\/p><p>\u2193<\/p><p>pliage du plastique<\/p><p>\u2193<\/p><p>Formation cylindrique<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-d5c45f4 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"d5c45f4\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-c96233a\" data-id=\"c96233a\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-718a03a elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"718a03a\" data-element_type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-46b7f2c elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"46b7f2c\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-0b03ff4\" data-id=\"0b03ff4\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-4bdd2a9 elementor-widget elementor-widget-heading\" data-id=\"4bdd2a9\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">2. Structure et principes de fonctionnement des machines \u00e0 cintrer \u00e0 quatre rouleaux<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0a94c55 elementor-widget elementor-widget-image\" data-id=\"0a94c55\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"642\" height=\"400\" src=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2026\/10\/Four-Roll-Bending-Structure.png\" class=\"attachment-large size-large wp-image-6465\" alt=\"Structure de pliage \u00e0 quatre rouleaux\" srcset=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2026\/10\/Four-Roll-Bending-Structure.png 642w, https:\/\/www.shen-chong.com\/wp-content\/uploads\/2026\/10\/Four-Roll-Bending-Structure-300x187.png 300w, https:\/\/www.shen-chong.com\/wp-content\/uploads\/2026\/10\/Four-Roll-Bending-Structure-18x12.png 18w\" sizes=\"(max-width: 642px) 100vw, 642px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d3b5a03 elementor-widget elementor-widget-heading\" data-id=\"d3b5a03\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">1) Action de serrage des rouleaux sup\u00e9rieur et inf\u00e9rieur<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8bb3848 elementor-widget elementor-widget-text-editor\" data-id=\"8bb3848\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Lors de son entr\u00e9e dans la machine, le rouleau inf\u00e9rieur se d\u00e9place vers le haut, serrant fermement la plaque m\u00e9tallique entre lui et le rouleau sup\u00e9rieur.<\/p><p>Ce proc\u00e9d\u00e9 remplit trois objectifs principaux\u00a0: emp\u00eacher le glissement de la plaque pendant l\u2019op\u00e9ration de laminage, assurer une alimentation continue et stable et am\u00e9liorer le contr\u00f4le de position tout au long du processus de formage.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e225cb5 elementor-widget elementor-widget-heading\" data-id=\"e225cb5\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">2) D\u00e9formation par flexion via des rouleaux lat\u00e9raux<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-867c460 elementor-widget elementor-widget-text-editor\" data-id=\"867c460\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Les rouleaux lat\u00e9raux gauche et droit appliquent une force par l&#039;interm\u00e9diaire de v\u00e9rins hydrauliques, modifiant ainsi l&#039;\u00e9tat de contrainte de la plaque m\u00e9tallique.<\/p><p>Lorsque la contrainte de flexion exerc\u00e9e sur la plaque d\u00e9passe la limite d&#039;\u00e9lasticit\u00e9 du mat\u00e9riau, la plaque subit une d\u00e9formation plastique, un changement qui n&#039;est pas enti\u00e8rement r\u00e9versible.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5194553 elementor-widget elementor-widget-text-editor\" data-id=\"5194553\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Lorsque la position des rouleaux lat\u00e9raux est ajust\u00e9e, le rayon de courbure de la plaque change en cons\u00e9quence.<\/p><p><strong><b>De mani\u00e8re g\u00e9n\u00e9rale, en supposant que les autres conditions restent constantes et que les limites de fonctionnement de l&#039;\u00e9quipement n&#039;ont pas \u00e9t\u00e9 atteintes\u00a0:<\/b><\/strong><\/p><ul><li>Le r\u00e9glage des rouleaux lat\u00e9raux vers le haut augmente le degr\u00e9 de flexion, ce qui r\u00e9duit le rayon de roulement.<\/li><li>En ajustant les rouleaux lat\u00e9raux vers le bas, on diminue le degr\u00e9 de flexion, ce qui entra\u00eene un rayon de roulement plus grand.<\/li><\/ul>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2a40a45 elementor-widget elementor-widget-heading\" data-id=\"2a40a45\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">3) Laminage continu par rotation des rouleaux de travail<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6d56de5 elementor-widget elementor-widget-text-editor\" data-id=\"6d56de5\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Le rouleau sup\u00e9rieur (et les rouleaux d&#039;entra\u00eenement associ\u00e9s) propulse la plaque vers l&#039;avant par friction, tandis que les rouleaux lat\u00e9raux appliquent une force de flexion continue, ce qui conf\u00e8re \u00e0 la plaque une courbure r\u00e9guli\u00e8re sur toute sa longueur. Apr\u00e8s un ou plusieurs passages de laminage, la plaque prend la forme finale du cylindre ou de l&#039;arc de cercle souhait\u00e9.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-ac6dc0d elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"ac6dc0d\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-72c7bae\" data-id=\"72c7bae\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-a6d05c7 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"a6d05c7\" data-element_type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-01320de elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"01320de\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-c2b44b6\" data-id=\"c2b44b6\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-bc0b4fa elementor-widget elementor-widget-heading\" data-id=\"bc0b4fa\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">3. Flux de travail complet pour le pliage de t\u00f4les \u00e0 quatre rouleaux<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d84ca3e elementor-widget elementor-widget-text-editor\" data-id=\"d84ca3e\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Le processus de pliage de plaques \u00e0 quatre rouleaux comprend g\u00e9n\u00e9ralement les \u00e9tapes suivantes : pr\u00e9paration du mat\u00e9riau, alimentation et positionnement, serrage, pr\u00e9-cintrage du bord d&#039;attaque, pr\u00e9-cintrage du bord de fuite, laminage continu, \u00e9talonnage de la rondeur et d\u00e9chargement.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-815f63b elementor-widget elementor-widget-text-editor\" data-id=\"815f63b\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Flux de processus typique\u00a0:<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c0d2ca7 elementor-widget elementor-widget-heading\" data-id=\"c0d2ca7\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">1) Pr\u00e9paration du mat\u00e9riel<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8792c15 elementor-widget elementor-widget-text-editor\" data-id=\"8792c15\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>V\u00e9rifiez l&#039;\u00e9paisseur, la largeur, la nuance d&#039;acier, l&#039;\u00e9tat de surface et la qualit\u00e9 des bords coup\u00e9s de la t\u00f4le. Confirmez le diam\u00e8tre cible et la longueur d\u00e9roul\u00e9e requise.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5a7cd5f elementor-widget elementor-widget-heading\" data-id=\"5a7cd5f\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">2) Alimentation et serrage<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4baf2bd elementor-widget elementor-widget-text-editor\" data-id=\"4baf2bd\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Ins\u00e9rez la plaque entre les rouleaux sup\u00e9rieur et inf\u00e9rieur, alignez sa position et appliquez la force de serrage appropri\u00e9e.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5970c26 elementor-widget elementor-widget-heading\" data-id=\"5970c26\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">3) Pr\u00e9-cintrage du bord d&#039;attaque<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8eab816 elementor-widget elementor-widget-text-editor\" data-id=\"8eab816\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Ajustez la position du rouleau lat\u00e9ral correspondant tout en faisant tourner les rouleaux principaux pour plier le bord d&#039;attaque de la plaque selon la courbure cible, minimisant ainsi le bord droit r\u00e9siduel.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5e7491e elementor-widget elementor-widget-heading\" data-id=\"5e7491e\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">4) Pr\u00e9-cintrage du bord de fuite<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2469bba elementor-widget elementor-widget-text-editor\" data-id=\"2469bba\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Inverser le sens d&#039;avance et utiliser le rouleau lat\u00e9ral oppos\u00e9 pour pr\u00e9-plier le bord de fuite de la plaque.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a737122 elementor-widget elementor-widget-heading\" data-id=\"a737122\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">5) Roulement continu<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f78a412 elementor-widget elementor-widget-text-editor\" data-id=\"f78a412\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Positionnez les rouleaux lat\u00e9raux aux endroits requis et faites passer la plaque \u00e0 travers la zone de pliage pour former progressivement un cylindre complet.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fb23387 elementor-widget elementor-widget-heading\" data-id=\"fb23387\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">6) Calibrage de la rondeur<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-70e8ec1 elementor-widget elementor-widget-text-editor\" data-id=\"70e8ec1\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Mesurez la rondeur, le diam\u00e8tre et la position de la couture\u00a0; effectuez des ajustements progressifs \u2014 en tenant compte du retour \u00e9lastique du mat\u00e9riau \u2014 pour \u00e9viter une flexion excessive.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-388561e elementor-widget elementor-widget-heading\" data-id=\"388561e\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">7) D\u00e9chargement et inspection<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-903109c elementor-widget elementor-widget-text-editor\" data-id=\"903109c\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Rel\u00e2chez la charge, ouvrez le palier d&#039;extr\u00e9mit\u00e9 (ou le support d&#039;extr\u00e9mit\u00e9) comme sp\u00e9cifi\u00e9 par le fabricant de l&#039;\u00e9quipement, retirez la pi\u00e8ce et inspectez ses dimensions et la qualit\u00e9 de sa surface.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-85e7d2a elementor-widget elementor-widget-text-editor\" data-id=\"85e7d2a\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>La s\u00e9quence de pr\u00e9-cintrage et les mouvements du syst\u00e8me de rouleaux peuvent varier selon l&#039;\u00e9quipement\u00a0; respectez toujours les instructions du fabricant. Lors du laminage de t\u00f4les \u00e9paisses et de grande taille, il peut \u00eatre n\u00e9cessaire d&#039;ajuster la position des rouleaux lat\u00e9raux en plusieurs \u00e9tapes afin d&#039;\u00e9viter une force excessive.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-7d6c547 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"7d6c547\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-a1025ee\" data-id=\"a1025ee\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-dddd577 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"dddd577\" data-element_type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-93fbe4c elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"93fbe4c\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-6594baf\" data-id=\"6594baf\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-3830367 elementor-widget elementor-widget-heading\" data-id=\"3830367\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">4. Dix caract\u00e9ristiques cl\u00e9s des cintreuses \u00e0 quatre rouleaux<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0248702 elementor-widget elementor-widget-image\" data-id=\"0248702\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"800\" height=\"341\" src=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2026\/10\/SW12-70X3000-4-Roller-Bending-Machine.jpg\" class=\"attachment-large size-large wp-image-6466\" alt=\"Cintreuse \u00e0 4 rouleaux SW12 70X3000\" srcset=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2026\/10\/SW12-70X3000-4-Roller-Bending-Machine.jpg 939w, https:\/\/www.shen-chong.com\/wp-content\/uploads\/2026\/10\/SW12-70X3000-4-Roller-Bending-Machine-300x128.jpg 300w, https:\/\/www.shen-chong.com\/wp-content\/uploads\/2026\/10\/SW12-70X3000-4-Roller-Bending-Machine-768x327.jpg 768w, https:\/\/www.shen-chong.com\/wp-content\/uploads\/2026\/10\/SW12-70X3000-4-Roller-Bending-Machine-18x8.jpg 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ca7f2f0 elementor-widget elementor-widget-heading\" data-id=\"ca7f2f0\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">1) Capacit\u00e9 de pr\u00e9-cintrage double extr\u00e9mit\u00e9 sup\u00e9rieure<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f1ed5aa elementor-widget elementor-widget-text-editor\" data-id=\"f1ed5aa\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Le r\u00e9glage ind\u00e9pendant des rouleaux gauche et droit permet le pr\u00e9-cintrage des deux extr\u00e9mit\u00e9s de la plaque en une seule op\u00e9ration. Ceci minimise efficacement les bords droits r\u00e9siduels et am\u00e9liore la qualit\u00e9 du formage au niveau du joint cylindrique.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-36dce8d elementor-widget elementor-widget-heading\" data-id=\"36dce8d\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">2) Haute pr\u00e9cision et stabilit\u00e9 de roulement<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b773597 elementor-widget elementor-widget-text-editor\" data-id=\"b773597\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>La combinaison du serrage des rouleaux sup\u00e9rieurs et inf\u00e9rieurs et des rouleaux lat\u00e9raux r\u00e9glables ind\u00e9pendamment facilite un contr\u00f4le pr\u00e9cis du rayon de laminage, emp\u00eache la t\u00f4le de d\u00e9river et assure une qualit\u00e9 constante dans la production par lots.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b7463fa elementor-widget elementor-widget-heading\" data-id=\"b7463fa\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">3) Solides capacit\u00e9s de contr\u00f4le automatis\u00e9<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8a02360 elementor-widget elementor-widget-text-editor\" data-id=\"8a02360\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Les mod\u00e8les \u00e0 commande num\u00e9rique utilisent le retour d&#039;information de position, la commande hydraulique et la gestion de programmes pour automatiser le positionnement des rouleaux, le stockage des param\u00e8tres de processus et l&#039;ensemble de la s\u00e9quence de laminage.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-57b9a80 elementor-widget elementor-widget-heading\" data-id=\"57b9a80\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">4) Efficacit\u00e9 de production \u00e9lev\u00e9e<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-35d31b4 elementor-widget elementor-widget-text-editor\" data-id=\"35d31b4\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>En minimisant le besoin de retournement, de repositionnement et de pr\u00e9-cintrage secondaire, ces machines sont particuli\u00e8rement adapt\u00e9es \u00e0 la production en s\u00e9rie de composants cylindriques.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a388bbe elementor-widget elementor-widget-heading\" data-id=\"a388bbe\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">5) Large compatibilit\u00e9 mat\u00e9rielle<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-27045a5 elementor-widget elementor-widget-text-editor\" data-id=\"27045a5\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Selon ses sp\u00e9cifications, l&#039;\u00e9quipement peut traiter l&#039;acier au carbone, l&#039;acier inoxydable, les alliages d&#039;aluminium et certaines plaques d&#039;acier \u00e0 haute r\u00e9sistance.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-93973d8 elementor-widget elementor-widget-heading\" data-id=\"93973d8\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">6) Capacit\u00e9s de formage polyvalentes<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5307ce1 elementor-widget elementor-widget-text-editor\" data-id=\"5307ce1\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Au-del\u00e0 des simples cylindres, l&#039;\u00e9quipement peut produire des arcs, des ellipses, des formes coniques et des composants aux courbures vari\u00e9es.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-08efcd4 elementor-widget elementor-widget-heading\" data-id=\"08efcd4\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">7) Entra\u00eenement hydraulique robuste<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-505f676 elementor-widget elementor-widget-text-editor\" data-id=\"505f676\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Les rouleaux lat\u00e9raux hydrauliques exercent une force de flexion importante, ce qui rend l&#039;\u00e9quipement adapt\u00e9 au traitement de plaques d&#039;\u00e9paisseur moyenne \u00e0 \u00e9paisse.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7215a8f elementor-widget elementor-widget-heading\" data-id=\"7215a8f\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">8) R\u00e9duction des d\u00e9chets de mat\u00e9riaux<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8b83bab elementor-widget elementor-widget-text-editor\" data-id=\"8b83bab\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Le pr\u00e9-cintrage minimise la longueur des bords droits, r\u00e9duisant ainsi le besoin de d\u00e9coupe ult\u00e9rieure.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-639721e elementor-widget elementor-widget-heading\" data-id=\"639721e\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">8) Facilement int\u00e9grable aux syst\u00e8mes automatis\u00e9s<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ac7995f elementor-widget elementor-widget-text-editor\" data-id=\"ac7995f\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>L&#039;\u00e9quipement peut \u00eatre combin\u00e9 avec des plateformes d&#039;alimentation, des cadres de support de pi\u00e8ces, des dispositifs de centrage automatiques et des syst\u00e8mes CNC pour former une cellule de laminage automatis\u00e9e.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f329645 elementor-widget elementor-widget-heading\" data-id=\"f329645\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">9) Am\u00e9lioration de la qualit\u00e9 de soudage<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b16fb5f elementor-widget elementor-widget-text-editor\" data-id=\"b16fb5f\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>La courbure r\u00e9guli\u00e8re aux deux extr\u00e9mit\u00e9s du cylindre roul\u00e9 facilite un ajustement pr\u00e9cis, le pointage de soudage et le soudage final ult\u00e9rieur.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a95599b elementor-widget elementor-widget-text-editor\" data-id=\"a95599b\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Ces caract\u00e9ristiques correspondent g\u00e9n\u00e9ralement aux sp\u00e9cifications fournies par les fabricants pour les configurations \u00e0 quatre rouleaux et leurs proc\u00e9d\u00e9s de formage associ\u00e9s\u00a0; cependant, la pr\u00e9cision r\u00e9elle, la capacit\u00e9 de production et les capacit\u00e9s d\u2019automatisation varieront en fonction de la configuration sp\u00e9cifique de l\u2019\u00e9quipement.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-14a7f9a elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"14a7f9a\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-7d51d0e\" data-id=\"7d51d0e\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-d79cc58 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"d79cc58\" data-element_type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-641ca45 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"641ca45\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-f79ccfd\" data-id=\"f79ccfd\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-40d7a09 elementor-widget elementor-widget-heading\" data-id=\"40d7a09\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">5. Param\u00e8tres techniques cl\u00e9s du processus de laminage \u00e0 quatre cylindres<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-afadeee elementor-widget elementor-widget-heading\" data-id=\"afadeee\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Tableau des principaux param\u00e8tres techniques\u00a0:<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9b0ea64 elementor-widget elementor-widget-text-editor\" data-id=\"9b0ea64\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<table><tbody><tr><td width=\"160\"><p>Sp\u00e9cifications techniques<\/p><\/td><td width=\"216\"><p>Fonctions et impacts<\/p><\/td><\/tr><tr><td width=\"160\"><p>\u00c9paisseur maximale de laminage des plaques<\/p><\/td><td width=\"216\"><p>D\u00e9termine l&#039;\u00e9paisseur maximale de plaque que l&#039;\u00e9quipement peut traiter.<\/p><\/td><\/tr><tr><td width=\"160\"><p>\u00c9paisseur maximale avant pliage<\/p><\/td><td width=\"216\"><p>D\u00e9termine la capacit\u00e9 de pr\u00e9-cintrage aux deux extr\u00e9mit\u00e9s (g\u00e9n\u00e9ralement inf\u00e9rieure \u00e0 l&#039;\u00e9paisseur maximale de laminage de la t\u00f4le)<\/p><\/td><\/tr><tr><td width=\"160\"><p>Largeur de laminage maximale des plaques<\/p><\/td><td width=\"216\"><p>D\u00e9termine la longueur axiale de la pi\u00e8ce \u00e0 usiner<\/p><\/td><\/tr><tr><td width=\"160\"><p>Diam\u00e8tre de roulement minimal<\/p><\/td><td width=\"216\"><p>D\u00e9termine le diam\u00e8tre minimal du cylindre que l&#039;\u00e9quipement peut former<\/p><\/td><\/tr><tr><td width=\"160\"><p>Diam\u00e8tre du rouleau sup\u00e9rieur<\/p><\/td><td width=\"216\"><p>Influence la capacit\u00e9 de laminage, la rigidit\u00e9 et le rayon de formage minimal<\/p><\/td><\/tr><tr><td width=\"160\"><p>Vitesse de rotation du rouleau de travail<\/p><\/td><td width=\"216\"><p>Influe sur le temps de cycle de production et le contr\u00f4le des processus<\/p><\/td><\/tr><tr><td width=\"160\"><p>Pr\u00e9cision du r\u00e9glage du roulis lat\u00e9ral<\/p><\/td><td width=\"216\"><p>Influe sur le contr\u00f4le de la courbure et la r\u00e9p\u00e9tabilit\u00e9<\/p><\/td><\/tr><tr><td width=\"160\"><p>Puissance du moteur principal<\/p><\/td><td width=\"216\"><p>Affecte la capacit\u00e9 de traction et la consommation d&#039;\u00e9nergie<\/p><\/td><\/tr><tr><td width=\"160\"><p>Pression du syst\u00e8me hydraulique<\/p><\/td><td width=\"216\"><p>Affecte la pouss\u00e9e et la capacit\u00e9 de charge du v\u00e9rin hydraulique<\/p><\/td><\/tr><tr><td width=\"160\"><p>Syst\u00e8me CNC<\/p><\/td><td width=\"216\"><p>D\u00e9termine les capacit\u00e9s li\u00e9es \u00e0 l&#039;automatisation, au stockage des param\u00e8tres et au contr\u00f4le des programmes<\/p><\/td><\/tr><\/tbody><\/table>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-749b664 elementor-widget elementor-widget-text-editor\" data-id=\"749b664\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><strong><b>Remarque importante\u00a0:<\/b><\/strong><\/p><p>L&#039;\u00e9paisseur maximale de la t\u00f4le ne signifie pas que l&#039;\u00e9quipement peut atteindre cette \u00e9paisseur quelle que soit la largeur, la r\u00e9sistance du mat\u00e9riau ou le diam\u00e8tre de la t\u00f4le. La capacit\u00e9 r\u00e9elle doit \u00eatre v\u00e9rifi\u00e9e \u00e0 l&#039;aide de la courbe de capacit\u00e9 de laminage de l&#039;\u00e9quipement.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-9038e34 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"9038e34\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-d36282f\" data-id=\"d36282f\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-be60d9a elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"be60d9a\" data-element_type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-b5eeeaa elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"b5eeeaa\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-03a9e11\" data-id=\"03a9e11\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-6b64e3b elementor-widget elementor-widget-heading\" data-id=\"6b64e3b\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">6. Calculs de formage pour le cintrage \u00e0 quatre rouleaux<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5ee8029 elementor-widget elementor-widget-heading\" data-id=\"5ee8029\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">1) Longueur d\u00e9velopp\u00e9e de la plaque<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-42fe37c elementor-widget elementor-widget-text-editor\" data-id=\"42fe37c\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><strong><b>Pour un cylindre id\u00e9al, la longueur peut \u00eatre estim\u00e9e \u00e0 partir de l&#039;axe neutre\u00a0:<\/b><\/strong><\/p><p>L \u2248 \u03c0(D<sub>je<\/sub>\u00a0+ Kt)<\/p><p>O\u00f9:<\/p><p>L : Longueur d\u00e9velopp\u00e9e de la plaque (mm)<\/p><p>D<sub>je<\/sub>: Diam\u00e8tre int\u00e9rieur cible du cylindre (mm)<\/p><p>t : \u00c9paisseur de la plaque (mm)<\/p><p>K : Coefficient de position de l&#039;axe neutre (environ 0,5 pour une estimation initiale ; cette valeur doit \u00eatre ajust\u00e9e en fonction du mat\u00e9riau et du proc\u00e9d\u00e9 sp\u00e9cifiques).<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-96f54f2 elementor-widget elementor-widget-text-editor\" data-id=\"96f54f2\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><strong><b>Par exemple, avec un diam\u00e8tre int\u00e9rieur cible de 1000 mm, une \u00e9paisseur de plaque de 10 mm et K = 0,5\u00a0:<\/b><\/strong><\/p><p>L \u2248 3,1416 * (1000 + 5)<\/p><p>L \u2248 3157,3 mm<\/p><p>Il s&#039;agit d&#039;une estimation th\u00e9orique. Lors de la pr\u00e9paration du mat\u00e9riau, il convient \u00e9galement de tenir compte de facteurs tels que l&#039;\u00e9cart de soudure, la sur\u00e9paisseur, le retour \u00e9lastique et les r\u00e9sultats des essais de laminage.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-aae78e8 elementor-widget elementor-widget-heading\" data-id=\"aae78e8\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">2) Contrainte de flexion de la plaque<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-06ae81c elementor-widget elementor-widget-text-editor\" data-id=\"06ae81c\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Lors du processus de pliage \u00e0 4 rouleaux, la couche ext\u00e9rieure de la plaque est soumise \u00e0 une tension, tandis que la couche int\u00e9rieure est soumise \u00e0 une compression.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a3524b9 elementor-widget elementor-widget-text-editor\" data-id=\"a3524b9\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><strong><b>Dans des conditions de flexion pure simplifi\u00e9es\u00a0:<\/b><\/strong><\/p><p>\u03b5 \u2248 t \/ 2R<sub>m<\/sub><\/p><p>O\u00f9 R<sub>m<\/sub>\u00a0est le rayon de courbure pr\u00e8s de l&#039;axe neutre de la plaque.<\/p><p>\u00c0 mesure que l&#039;\u00e9paisseur de la plaque augmente ou que le rayon cible diminue, la contrainte de flexion augmente g\u00e9n\u00e9ralement, ce qui rend le processus de laminage plus difficile.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6d03342 elementor-widget elementor-widget-heading\" data-id=\"6d03342\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">3) Compensation du retour \u00e9lastique<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8c36c29 elementor-widget elementor-widget-text-editor\" data-id=\"8c36c29\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Une fois la plaque sortie des rouleaux de travail, elle subira un retour \u00e9lastique ; par cons\u00e9quent, le diam\u00e8tre r\u00e9el du cylindre peut \u00eatre sup\u00e9rieur au diam\u00e8tre de formage appliqu\u00e9 lors du processus de laminage.<\/p><p>Les principaux facteurs influen\u00e7ant le retour \u00e9lastique comprennent la limite d&#039;\u00e9lasticit\u00e9 du mat\u00e9riau, son module d&#039;\u00e9lasticit\u00e9, l&#039;\u00e9paisseur de la plaque, le rayon cible et la trajectoire de laminage.<\/p><p>En production, le montant de la compensation doit \u00eatre d\u00e9termin\u00e9 par des mesures prises lors des essais de laminage, plut\u00f4t que par l&#039;application d&#039;un pourcentage de compensation fixe.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-40cea2b elementor-widget elementor-widget-video\" data-id=\"40cea2b\" data-element_type=\"widget\" data-settings=\"{&quot;youtube_url&quot;:&quot;https:\\\/\\\/www.youtube.com\\\/watch?v=Q5p8l-eM_Ks&quot;,&quot;video_type&quot;:&quot;youtube&quot;,&quot;controls&quot;:&quot;yes&quot;}\" data-widget_type=\"video.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.20.0 - 13-03-2024 *\/\n.elementor-widget-video .elementor-widget-container{overflow:hidden;transform:translateZ(0)}.elementor-widget-video .elementor-wrapper{aspect-ratio:var(--video-aspect-ratio)}.elementor-widget-video .elementor-wrapper iframe,.elementor-widget-video .elementor-wrapper video{height:100%;width:100%;display:flex;border:none;background-color:#000}@supports not (aspect-ratio:1\/1){.elementor-widget-video .elementor-wrapper{position:relative;overflow:hidden;height:0;padding-bottom:calc(100% \/ var(--video-aspect-ratio))}.elementor-widget-video .elementor-wrapper iframe,.elementor-widget-video .elementor-wrapper video{position:absolute;top:0;right:0;bottom:0;left:0}}.elementor-widget-video .elementor-open-inline .elementor-custom-embed-image-overlay{position:absolute;top:0;right:0;bottom:0;left:0;background-size:cover;background-position:50%}.elementor-widget-video .elementor-custom-embed-image-overlay{cursor:pointer;text-align:center}.elementor-widget-video .elementor-custom-embed-image-overlay:hover .elementor-custom-embed-play i{opacity:1}.elementor-widget-video .elementor-custom-embed-image-overlay img{display:block;width:100%;aspect-ratio:var(--video-aspect-ratio);-o-object-fit:cover;object-fit:cover;-o-object-position:center center;object-position:center center}@supports not (aspect-ratio:1\/1){.elementor-widget-video .elementor-custom-embed-image-overlay{position:relative;overflow:hidden;height:0;padding-bottom:calc(100% \/ var(--video-aspect-ratio))}.elementor-widget-video .elementor-custom-embed-image-overlay img{position:absolute;top:0;right:0;bottom:0;left:0}}.elementor-widget-video .e-hosted-video .elementor-video{-o-object-fit:cover;object-fit:cover}.e-con-inner>.elementor-widget-video,.e-con>.elementor-widget-video{width:var(--container-widget-width);--flex-grow:var(--container-widget-flex-grow)}<\/style>\t\t<div class=\"elementor-wrapper elementor-open-inline\">\n\t\t\t<div class=\"elementor-video\"><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-db2e079 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"db2e079\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-3b264e9\" data-id=\"3b264e9\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-2b819c5 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"2b819c5\" data-element_type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-409d1fe elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"409d1fe\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-0192cfe\" data-id=\"0192cfe\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-060eb58 elementor-widget elementor-widget-heading\" data-id=\"060eb58\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">7. Comparaison des cintreuses de t\u00f4les \u00e0 quatre et trois rouleaux<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3429197 elementor-widget elementor-widget-heading\" data-id=\"3429197\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Tableau comparatif\u00a0:<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9568ad5 elementor-widget elementor-widget-text-editor\" data-id=\"9568ad5\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<table><tbody><tr><td width=\"167\"><p><strong><b>Crit\u00e8res de comparaison<\/b><\/strong><\/p><\/td><td width=\"173\"><p><strong><b>Cintreuse de t\u00f4les \u00e0 quatre rouleaux<\/b><\/strong><\/p><\/td><td width=\"187\"><p><strong><b>Cintreuse de t\u00f4les \u00e0 trois rouleaux<\/b><\/strong><\/p><\/td><\/tr><tr><td width=\"167\"><p>Nombre de rouleaux de travail<\/p><\/td><td width=\"173\"><p>4 rouleaux<\/p><\/td><td width=\"187\"><p>3 rouleaux<\/p><\/td><\/tr><tr><td width=\"167\"><p>Serrage de plaque<\/p><\/td><td width=\"173\"><p>Serrage ind\u00e9pendant par les rouleaux sup\u00e9rieur et inf\u00e9rieur<\/p><\/td><td width=\"187\"><p>Cela d\u00e9pend de la configuration sp\u00e9cifique du rouleau<\/p><\/td><\/tr><tr><td width=\"167\"><p>Pr\u00e9-cintrage des deux extr\u00e9mit\u00e9s<\/p><\/td><td width=\"173\"><p>Processus termin\u00e9 avec une seule configuration<\/p><\/td><td width=\"187\"><p>Certains mod\u00e8les n\u00e9cessitent de retourner ou de repositionner l&#039;assiette.<\/p><\/td><\/tr><tr><td width=\"167\"><p>Bord droit r\u00e9siduel<\/p><\/td><td width=\"173\"><p>G\u00e9n\u00e9ralement plus court (temps de cycle)<\/p><\/td><td width=\"187\"><p>Cela d\u00e9pend du mod\u00e8le et de la m\u00e9thode de pr\u00e9-cintrage<\/p><\/td><\/tr><tr><td width=\"167\"><p>Pr\u00e9cision de roulement<\/p><\/td><td width=\"173\"><p>Il est plus facile d&#039;obtenir une r\u00e9p\u00e9tabilit\u00e9 \u00e9lev\u00e9e<\/p><\/td><td width=\"187\"><p>Les mod\u00e8les haut de gamme peuvent \u00e9galement atteindre une haute pr\u00e9cision.<\/p><\/td><\/tr><tr><td width=\"167\"><p>Int\u00e9gration de l&#039;automatisation<\/p><\/td><td width=\"173\"><p>G\u00e9n\u00e9ralement plus pratique<\/p><\/td><td width=\"187\"><p>Cela d\u00e9pend de la structure et du syst\u00e8me de contr\u00f4le<\/p><\/td><\/tr><tr><td width=\"167\"><p>Complexit\u00e9 op\u00e9rationnelle<\/p><\/td><td width=\"173\"><p>Le serrage et le pr\u00e9-cintrage sont relativement simples.<\/p><\/td><td width=\"187\"><p>Cela varie selon la conception de l&#039;\u00e9quipement<\/p><\/td><\/tr><tr><td width=\"167\"><p>Investissement en \u00e9quipement<\/p><\/td><td width=\"173\"><p>G\u00e9n\u00e9ralement plus \u00e9lev\u00e9e (productivit\u00e9\/efficacit\u00e9)<\/p><\/td><td width=\"187\"><p>Certains mod\u00e8les ont un co\u00fbt inf\u00e9rieur<\/p><\/td><\/tr><tr><td width=\"167\"><p>Sc\u00e9narios applicables<\/p><\/td><td width=\"173\"><p>Adapt\u00e9 \u00e0 la production par lots, \u00e0 haut rendement et automatis\u00e9e<\/p><\/td><td width=\"187\"><p>Traitement \u00e0 usage g\u00e9n\u00e9ral et une large gamme d&#039;applications de pliage de plaques<\/p><\/td><\/tr><\/tbody><\/table>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8172c80 elementor-widget elementor-widget-text-editor\" data-id=\"8172c80\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Il convient de noter que <span style=\"text-decoration: underline;\"><a href=\"https:\/\/www.shen-chong.com\/fr\/cintreuse-de-plaques-a-3-rouleaux\/\" target=\"_blank\" rel=\"noopener\">machines \u00e0 rouler les t\u00f4les \u00e0 trois rouleaux<\/a><\/span> Elles se pr\u00e9sentent sous diff\u00e9rentes configurations, telles que des types sym\u00e9triques, asym\u00e9triques et universels (\u00e0 rouleau sup\u00e9rieur r\u00e9glable), il serait donc inexact de supposer qu&#039;aucune machine \u00e0 trois rouleaux n&#039;est capable d&#039;effectuer un pr\u00e9-cintrage aux deux extr\u00e9mit\u00e9s d&#039;une plaque.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f514c58 elementor-widget elementor-widget-text-editor\" data-id=\"f514c58\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><strong><b>Conclusion de la s\u00e9lection\u00a0:<\/b><\/strong><\/p><p>Pour les entreprises produisant en s\u00e9rie des composants cylindriques n\u00e9cessitant un pr\u00e9-cintrage de haute pr\u00e9cision et des changements de production fr\u00e9quents, une rouleuse \u00e0 quatre rouleaux offre g\u00e9n\u00e9ralement de plus grands avantages. \u00c0 l&#039;inverse, pour les entreprises disposant de budgets limit\u00e9s ou produisant des composants plus simples et moins vari\u00e9s, une rouleuse \u00e0 trois rouleaux adapt\u00e9e peut s&#039;av\u00e9rer un choix tr\u00e8s rentable.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-dfa9179 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"dfa9179\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-24307da\" data-id=\"24307da\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-affdcc4 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"affdcc4\" data-element_type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-db1ff40 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"db1ff40\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-aefb5ad\" data-id=\"aefb5ad\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-0ed9463 elementor-widget elementor-widget-heading\" data-id=\"0ed9463\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">8. Principaux secteurs d&#039;activit\u00e9 pour les applications de laminage de plaques \u00e0 quatre rouleaux<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ccec06d elementor-widget elementor-widget-text-editor\" data-id=\"ccec06d\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<ul><li>Fabrication de r\u00e9servoirs sous pression et de cuves de stockage\u00a0: r\u00e9servoirs de stockage de liquides, cuves chimiques et segments de coque de r\u00e9servoirs sous pression.<\/li><li>\u00c9quipements pour l&#039;\u00e9nergie \u00e9olienne\u00a0: Tours d&#039;\u00e9oliennes et composants structurels cylindriques de grande taille pour \u00e9quipements \u00e9nerg\u00e9tiques.<\/li><li>Construction navale et ing\u00e9nierie offshore\u00a0: plaques de coque courbes, composants cylindriques marins et pi\u00e8ces structurelles.<\/li><li>Tuyaux en acier et structures m\u00e9talliques\u00a0: tuyaux en acier soud\u00e9s de grand diam\u00e8tre, conduits de fum\u00e9e et conduits de ventilation.<\/li><\/ul>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-ce82087 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"ce82087\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-6d7f7ca\" data-id=\"6d7f7ca\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-8d36115 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"8d36115\" data-element_type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-cc6425b elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"cc6425b\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-8dd7bc3\" data-id=\"8dd7bc3\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-88ed0ef elementor-widget elementor-widget-heading\" data-id=\"88ed0ef\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">9. Six facteurs cl\u00e9s influen\u00e7ant la qualit\u00e9 du laminage de t\u00f4les \u00e0 quatre rouleaux<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-68b1f81 elementor-widget elementor-widget-image\" data-id=\"68b1f81\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"607\" src=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2026\/10\/4-roller-plate-bending-machine-12X3200.jpg\" class=\"attachment-large size-large wp-image-6467\" alt=\"Cintreuse de t\u00f4les \u00e0 4 rouleaux 12X3200\" srcset=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2026\/10\/4-roller-plate-bending-machine-12X3200.jpg 800w, https:\/\/www.shen-chong.com\/wp-content\/uploads\/2026\/10\/4-roller-plate-bending-machine-12X3200-300x228.jpg 300w, https:\/\/www.shen-chong.com\/wp-content\/uploads\/2026\/10\/4-roller-plate-bending-machine-12X3200-768x583.jpg 768w, https:\/\/www.shen-chong.com\/wp-content\/uploads\/2026\/10\/4-roller-plate-bending-machine-12X3200-16x12.jpg 16w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-713806d elementor-widget elementor-widget-heading\" data-id=\"713806d\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">1) Type de mat\u00e9riau et limite d&#039;\u00e9lasticit\u00e9<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bd3c8f8 elementor-widget elementor-widget-text-editor\" data-id=\"bd3c8f8\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Les forces de laminage requises varient consid\u00e9rablement selon les mat\u00e9riaux. \u00c0 \u00e9paisseur \u00e9gale, les mat\u00e9riaux \u00e0 limite \u00e9lastique plus \u00e9lev\u00e9e n\u00e9cessitent g\u00e9n\u00e9ralement un moment de flexion plus important.<\/p><p>Par cons\u00e9quent, la capacit\u00e9 de traitement d&#039;un <span style=\"text-decoration: underline;\"><a href=\"https:\/\/www.shen-chong.com\/fr\/plate-rolling-machine\/\" target=\"_blank\" rel=\"noopener\">machine \u00e0 rouler les plaques<\/a><\/span> ne peut \u00eatre d\u00e9termin\u00e9 uniquement sur la base de l&#039;\u00e9paisseur de la plaque.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8ff042b elementor-widget elementor-widget-heading\" data-id=\"8ff042b\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">2) \u00c9paisseur et largeur de la plaque<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6d7177c elementor-widget elementor-widget-text-editor\" data-id=\"6d7177c\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Une plus grande \u00e9paisseur de plaque n\u00e9cessite g\u00e9n\u00e9ralement un moment de flexion plus important\u00a0; une largeur de plaque accrue peut entra\u00eener une plus grande d\u00e9viation du rouleau et des charges de formage totales plus \u00e9lev\u00e9es.<\/p><p>Pour un mat\u00e9riau et une courbure donn\u00e9s, selon un mod\u00e8le de flexion \u00e9lasto-plastique simplifi\u00e9, le moment de flexion requis par unit\u00e9 de largeur est approximativement proportionnel au carr\u00e9 de l&#039;\u00e9paisseur. Cependant, la charge de laminage r\u00e9elle d\u00e9pend \u00e9galement de facteurs tels que la distance entre les cylindres et les conditions de fonctionnement sp\u00e9cifiques.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-529ff76 elementor-widget elementor-widget-heading\" data-id=\"529ff76\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">3) Diam\u00e8tre de roulement<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-90a73bc elementor-widget elementor-widget-text-editor\" data-id=\"90a73bc\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Un diam\u00e8tre cible plus petit n\u00e9cessite g\u00e9n\u00e9ralement un degr\u00e9 de d\u00e9formation plastique plus important dans la plaque.<\/p><p>Le diam\u00e8tre de laminage minimal qu&#039;une machine peut atteindre est limit\u00e9 par des facteurs tels que le diam\u00e8tre du rouleau sup\u00e9rieur, la disposition des rouleaux, la r\u00e9sistance du mat\u00e9riau, l&#039;\u00e9paisseur de la plaque et la rigidit\u00e9 globale de l&#039;\u00e9quipement.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3ed0f9f elementor-widget elementor-widget-heading\" data-id=\"3ed0f9f\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">4) Mat\u00e9riau \u00e9lastique (retour \u00e0 la forme)<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-dcd4ac4 elementor-widget elementor-widget-text-editor\" data-id=\"dcd4ac4\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Une fois le laminage termin\u00e9, la contrainte \u00e9lastique du mat\u00e9riau est rel\u00e2ch\u00e9e, ce qui entra\u00eene g\u00e9n\u00e9ralement une augmentation du diam\u00e8tre et une diminution de la courbure de la pi\u00e8ce. Par cons\u00e9quent, en production, il est souvent n\u00e9cessaire de cintrer volontairement le mat\u00e9riau au-del\u00e0 de sa capacit\u00e9 initiale, puis d&#039;obtenir les dimensions souhait\u00e9es par des mesures et des corrections de circularit\u00e9 ult\u00e9rieures.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4463e22 elementor-widget elementor-widget-heading\" data-id=\"4463e22\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">5) D\u00e9viation de roulis et parall\u00e9lisme<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-26aea19 elementor-widget elementor-widget-text-editor\" data-id=\"26aea19\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Lors du traitement de plaques larges, les rouleaux peuvent se d\u00e9former sous la charge, ce qui peut entra\u00eener une courbure non uniforme sur toute la largeur de la pi\u00e8ce.<\/p><p>Les mesures de contr\u00f4le doivent tenir compte de la rigidit\u00e9 des rouleaux de l&#039;\u00e9quipement, de la conception de la compensation et de la largeur r\u00e9elle de la plaque.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a462854 elementor-widget elementor-widget-heading\" data-id=\"a462854\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">6) Proc\u00e9dures d&#039;alimentation, de positionnement et d&#039;utilisation<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4a98dc9 elementor-widget elementor-widget-text-editor\" data-id=\"4a98dc9\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Un mauvais alignement lors de l&#039;alimentation, une force de serrage insuffisante ou un r\u00e9glage incoh\u00e9rent des rouleaux lat\u00e9raux peuvent entra\u00eener des probl\u00e8mes tels que la conicit\u00e9, l&#039;ovalisation ou un mauvais alignement de la couture.<\/p><p>Par cons\u00e9quent, les param\u00e8tres CNC doivent \u00eatre soigneusement coordonn\u00e9s avec les proc\u00e9dures op\u00e9rationnelles r\u00e9elles.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-343b48e elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"343b48e\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-471662b\" data-id=\"471662b\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-5397d8b elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"5397d8b\" data-element_type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-01d6d68 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"01d6d68\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-5099bbc\" data-id=\"5099bbc\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-fa1b328 elementor-widget elementor-widget-heading\" data-id=\"fa1b328\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">10. Comment am\u00e9liorer la pr\u00e9cision de traitement du pliage \u00e0 quatre rouleaux ?<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8bbefa9 elementor-widget elementor-widget-text-editor\" data-id=\"8bbefa9\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>En production pratique, l&#039;optimisation peut \u00eatre abord\u00e9e sous trois angles\u00a0: l&#039;\u00e9quipement, le processus et le contr\u00f4le.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ca92c14 elementor-widget elementor-widget-text-editor\" data-id=\"ca92c14\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<table><tbody><tr><td width=\"140\"><p><strong><b>Probl\u00e8mes courants<\/b><\/strong><\/p><\/td><td width=\"166\"><p><strong><b>Causes possibles<\/b><\/strong><\/p><\/td><td width=\"193\"><p><strong><b>Mesures d&#039;am\u00e9lioration<\/b><\/strong><\/p><\/td><\/tr><tr><td width=\"140\"><p>Ovalisation excessive du cylindre<\/p><\/td><td width=\"166\"><p>Positionnement incorrect du rouleau lat\u00e9ral, retour de ressort irr\u00e9gulier<\/p><\/td><td width=\"193\"><p>Mise en \u0153uvre d&#039;un laminage en plusieurs \u00e9tapes, d&#039;une correction de circularit\u00e9 et d&#039;un ajustement des param\u00e8tres<\/p><\/td><\/tr><tr><td width=\"140\"><p>Pr\u00e9sence de bords droits aux coutures<\/p><\/td><td width=\"166\"><p>Pr\u00e9-cintrage insuffisant<\/p><\/td><td width=\"193\"><p>Optimiser le processus de pr\u00e9-cintrage des extr\u00e9mit\u00e9s<\/p><\/td><\/tr><tr><td width=\"140\"><p>Conicit\u00e9 de la pi\u00e8ce<\/p><\/td><td width=\"166\"><p>Alimentation en mat\u00e9riau mal align\u00e9e, positionnement incoh\u00e9rent de l&#039;axe du rouleau<\/p><\/td><td width=\"193\"><p>V\u00e9rifiez le centrage de la plaque et la synchronisation du roulis lat\u00e9ral<\/p><\/td><\/tr><tr><td width=\"140\"><p>Forme renfl\u00e9e ou \u00ab \u00e0 taille \u00bb (en sablier) au milieu du cylindre<\/p><\/td><td width=\"166\"><p>D\u00e9flexion de l&#039;axe du rouleau, non-uniformit\u00e9 du mat\u00e9riau<\/p><\/td><td width=\"193\"><p>V\u00e9rifier la rigidit\u00e9 de l&#039;\u00e9quipement et la compensation de l&#039;arbre de roulement<\/p><\/td><\/tr><tr><td width=\"140\"><p>Indentations de surface<\/p><\/td><td width=\"166\"><p>Contamination des surfaces des rouleaux, force de serrage excessive<\/p><\/td><td width=\"193\"><p>Nettoyer les surfaces des rouleaux et optimiser la pression de serrage<\/p><\/td><\/tr><tr><td width=\"140\"><p>Fluctuations dimensionnelles lors de traitements r\u00e9p\u00e9t\u00e9s<\/p><\/td><td width=\"166\"><p>Variations entre les lots de mat\u00e9riaux, param\u00e8tres de processus instables<\/p><\/td><td width=\"193\"><p>Cat\u00e9goriser les programmes de processus et effectuer l&#039;inspection du premier article<\/p><\/td><\/tr><\/tbody><\/table>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e8d39d2 elementor-widget elementor-widget-text-editor\" data-id=\"e8d39d2\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Pour les plaques exigeant une qualit\u00e9 de surface \u00e9lev\u00e9e, comme celles en acier inoxydable, des mesures suppl\u00e9mentaires peuvent \u00eatre mises en \u0153uvre, notamment l&#039;utilisation de rev\u00eatements de protection pour les rouleaux, de mat\u00e9riaux de contact sp\u00e9cialis\u00e9s et de pr\u00e9cautions anti-rayures.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-3b05403 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"3b05403\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-2751f53\" data-id=\"2751f53\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-2186c28 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"2186c28\" data-element_type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-31dee96 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"31dee96\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-fda81a4\" data-id=\"fda81a4\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-f9bbd9d elementor-widget elementor-widget-heading\" data-id=\"f9bbd9d\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">11. Comment choisir la machine \u00e0 rouler les t\u00f4les \u00e0 quatre rouleaux appropri\u00e9e ?<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1fe6283 elementor-widget elementor-widget-text-editor\" data-id=\"1fe6283\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Lors du choix d&#039;une machine, il est recommand\u00e9 de d\u00e9terminer au pr\u00e9alable cinq param\u00e8tres de processus fondamentaux\u00a0: le type et la limite d&#039;\u00e9lasticit\u00e9 du mat\u00e9riau, l&#039;\u00e9paisseur maximale de la plaque, la largeur maximale de la plaque, le diam\u00e8tre de laminage interne minimal et la n\u00e9cessit\u00e9 ou non d&#039;un pr\u00e9-cintrage des deux extr\u00e9mit\u00e9s de la plaque.<\/p><p>Prenons comme exemple la rouleuse de t\u00f4les hydraulique \u00e0 quatre rouleaux de la s\u00e9rie W12, les param\u00e8tres suivants doivent \u00eatre prioris\u00e9s lors du processus de s\u00e9lection.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-950faf7 elementor-widget elementor-widget-text-editor\" data-id=\"950faf7\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<table><tbody><tr><td width=\"135\"><p><strong><b>Sp\u00e9cifications techniques<\/b><\/strong><\/p><\/td><td width=\"144\"><p><strong><b>Description<\/b><\/strong><\/p><\/td><\/tr><tr><td width=\"135\"><p>\u00c9paisseur maximale de laminage des plaques<\/p><\/td><td width=\"144\"><p>\u00c9paisseur de laminage maximale pour les conditions de mat\u00e9riau, de largeur et de diam\u00e8tre sp\u00e9cifi\u00e9es<\/p><\/td><\/tr><tr><td width=\"135\"><p>\u00c9paisseur maximale avant pliage<\/p><\/td><td width=\"144\"><p>\u00c9paisseur maximale de t\u00f4le pour laquelle l&#039;\u00e9quipement peut effectuer un pr\u00e9-cintrage des bords<\/p><\/td><\/tr><tr><td width=\"135\"><p>Largeur de laminage maximale des plaques<\/p><\/td><td width=\"144\"><p>Largeur maximale admissible de la plaque pour le traitement<\/p><\/td><\/tr><tr><td width=\"135\"><p>Diam\u00e8tre de roulement minimal<\/p><\/td><td width=\"144\"><p>Diam\u00e8tre minimal de la pi\u00e8ce pouvant \u00eatre obtenu dans des conditions de fonctionnement sp\u00e9cifi\u00e9es<\/p><\/td><\/tr><tr><td width=\"135\"><p>Diam\u00e8tre du rouleau sup\u00e9rieur<\/p><\/td><td width=\"144\"><p>Affecte la rigidit\u00e9 et la capacit\u00e9 \u00e0 rouler des pi\u00e8ces de petit diam\u00e8tre<\/p><\/td><\/tr><tr><td width=\"135\"><p>Diam\u00e8tre du rouleau inf\u00e9rieur<\/p><\/td><td width=\"144\"><p>Affecte les performances de serrage et d&#039;alimentation<\/p><\/td><\/tr><tr><td width=\"135\"><p>Diam\u00e8tre du rouleau lat\u00e9ral<\/p><\/td><td width=\"144\"><p>Affecte la capacit\u00e9 de charge des rouleaux lat\u00e9raux et la plage de roulement globale<\/p><\/td><\/tr><tr><td width=\"135\"><p>vitesse de roulement<\/p><\/td><td width=\"144\"><p>Vitesse lin\u00e9aire de la plaque pendant le processus de laminage<\/p><\/td><\/tr><tr><td width=\"135\"><p>Puissance du moteur principal<\/p><\/td><td width=\"144\"><p>Concernant la capacit\u00e9 d&#039;entra\u00eenement et les sp\u00e9cifications de l&#039;\u00e9quipement<\/p><\/td><\/tr><tr><td width=\"135\"><p>Pression du syst\u00e8me hydraulique<\/p><\/td><td width=\"144\"><p>Pression de service nominale du syst\u00e8me hydraulique<\/p><\/td><\/tr><tr><td width=\"135\"><p>Syst\u00e8me CNC<\/p><\/td><td width=\"144\"><p>Contr\u00f4le le positionnement des rouleaux, les s\u00e9quences op\u00e9rationnelles et les programmes de traitement<\/p><\/td><\/tr><tr><td width=\"135\"><p>Poids total de la machine<\/p><\/td><td width=\"144\"><p>Concernant la structure, les sp\u00e9cifications et la capacit\u00e9 de charge de l&#039;\u00e9quipement<\/p><\/td><\/tr><\/tbody><\/table>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-19e50a7 elementor-widget elementor-widget-text-editor\" data-id=\"19e50a7\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Prenons l&#039;exemple des rouleuses \u00e0 quatre rouleaux courantes, telles que les mod\u00e8les W12-16\u00d72000 et W12-25\u00d73200\u00a0: les chiffres de la d\u00e9signation du mod\u00e8le indiquent g\u00e9n\u00e9ralement l&#039;\u00e9paisseur nominale de laminage et la largeur de travail. Toutefois, il est toujours indispensable de v\u00e9rifier la capacit\u00e9 r\u00e9elle en la comparant aux sp\u00e9cifications techniques du fabricant et aux r\u00e9sultats des essais de laminage.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7882bf5 elementor-widget elementor-widget-text-editor\" data-id=\"7882bf5\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Pour une rouleuse \u00e0 quatre cylindres W12-25\u00d73200, la d\u00e9signation du mod\u00e8le indique une capacit\u00e9 de laminage nominale de 25 mm d&#039;\u00e9paisseur et 3\u00a0200 mm de largeur. Il est important de noter que cette capacit\u00e9 d&#039;\u00e9paisseur d\u00e9pend de param\u00e8tres sp\u00e9cifiques d\u00e9finis par le fabricant, tels que la r\u00e9sistance du mat\u00e9riau, le diam\u00e8tre minimal de laminage et les conditions de pr\u00e9-cintrage, et ne doit pas \u00eatre interpr\u00e9t\u00e9e comme une capacit\u00e9 absolue \u00e0 laminer des plaques de 25 mm d&#039;\u00e9paisseur dans toutes les conditions de fonctionnement.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6f6a0f8 elementor-widget elementor-widget-text-editor\" data-id=\"6f6a0f8\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Pour les installations principalement d\u00e9di\u00e9es \u00e0 la production en s\u00e9rie de composants cylindriques, il convient de privil\u00e9gier des fonctionnalit\u00e9s telles que la commande num\u00e9rique (CNC), le centrage automatique, le retour d&#039;information sur la position des rouleaux, la synchronisation hydraulique, l&#039;alimentation automatis\u00e9e et les syst\u00e8mes de support auxiliaires. En revanche, pour les op\u00e9rations de production en petites s\u00e9ries \u00e0 forte diversit\u00e9, il est pr\u00e9f\u00e9rable de privil\u00e9gier la facilit\u00e9 d&#039;utilisation, l&#039;efficacit\u00e9 des changements d&#039;outillage ou de processus, ainsi que le co\u00fbt global d&#039;investissement.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-610a1d5 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"610a1d5\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-e8f5c9a\" data-id=\"e8f5c9a\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-7f9996e elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"7f9996e\" data-element_type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-74f4185 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"74f4185\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-4ddd904\" data-id=\"4ddd904\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-dbd813e elementor-widget elementor-widget-heading\" data-id=\"dbd813e\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">12. Conclusion\u00a0: La valeur fondamentale du proc\u00e9d\u00e9 de laminage \u00e0 quatre rouleaux<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c93f218 elementor-widget elementor-widget-text-editor\" data-id=\"c93f218\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>L&#039;avantage du cintrage \u00e0 4 rouleaux ne r\u00e9side pas seulement dans l&#039;ajout d&#039;un rouleau de travail suppl\u00e9mentaire\u00a0; il permet surtout d&#039;effectuer le pr\u00e9-cintrage, le roulage et le calibrage (arrondi) sur une seule machine. Ceci est rendu possible gr\u00e2ce au serrage stable assur\u00e9 par les rouleaux sup\u00e9rieur et inf\u00e9rieur, combin\u00e9 \u00e0 l&#039;action de formage ind\u00e9pendante des rouleaux lat\u00e9raux.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bf7e0b4 elementor-widget elementor-widget-text-editor\" data-id=\"bf7e0b4\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Du point de vue de la production, une rouleuse \u00e0 quatre rouleaux minimise le besoin de manutention et de positionnement r\u00e9p\u00e9t\u00e9 des plaques, am\u00e9liore la r\u00e9gularit\u00e9 du formage cylindrique et constitue une base id\u00e9ale pour les lignes de production de laminage automatis\u00e9es.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-deecd20 elementor-widget elementor-widget-text-editor\" data-id=\"deecd20\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Pour les fabricants de secteurs tels que les r\u00e9cipients sous pression, les r\u00e9servoirs de stockage, les structures en acier, la construction navale et les \u00e9quipements \u00e9nerg\u00e9tiques, la rouleuse de t\u00f4les \u00e0 quatre rouleaux est particuli\u00e8rement adapt\u00e9e aux applications exigeant une efficacit\u00e9 de production \u00e9lev\u00e9e, une qualit\u00e9 de laminage sup\u00e9rieure et une r\u00e9p\u00e9tabilit\u00e9 constante d&#039;un lot \u00e0 l&#039;autre.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Table des mati\u00e8res 4 Le proc\u00e9d\u00e9 de cintrage par rouleaux est une m\u00e9thode largement utilis\u00e9e pour la mise en forme des t\u00f4les m\u00e9talliques. Il exploite la rotation des rouleaux de la machine, le serrage de la t\u00f4le et le mouvement vertical des rouleaux lat\u00e9raux pour induire une d\u00e9formation plastique progressive d&#039;une t\u00f4le plane, lui donnant ainsi la forme de cylindres, d&#039;arcs, de sections coniques, [\u2026]<\/p>","protected":false},"author":1,"featured_media":6461,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-6460","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news-events"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>4 Roller Bending Working Principle And Equipment Features - SC Machinery<\/title>\n<meta name=\"description\" content=\"4 roller bending process is a widely used method for forming metal plates. 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