{"id":18446,"date":"2025-02-17T07:17:49","date_gmt":"2025-02-17T07:17:49","guid":{"rendered":"https:\/\/bfymold.com\/?p=18446"},"modified":"2025-02-24T08:39:24","modified_gmt":"2025-02-24T08:39:24","slug":"5-common-injection-molding-defects","status":"publish","type":"post","link":"https:\/\/bfymold.com\/fr\/5-common-injection-molding-defects\/","title":{"rendered":"5 d\u00e9fauts courants du moulage par injection et comment les corriger"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\" id=\"u3d5ab64a\"><strong>Introduction<\/strong><\/h2>\n\n<div style=\"height:38px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<p id=\"u5b4f452a\">Les d\u00e9fauts de moulage par injection co\u00fbtent aux fabricants jusqu&rsquo;\u00e0 15 % de perte de mati\u00e8re et 20 % de retard de livraison par an. Qu&rsquo;il s&rsquo;agisse de marques d&rsquo;enfoncement ou de d\u00e9formation, m\u00eame des probl\u00e8mes mineurs peuvent entra\u00eener des rappels co\u00fbteux, en particulier dans les secteurs r\u00e9glement\u00e9s tels que les <a href=\"https:\/\/bfymold.com\/fr\/industries\/medical-devices\/\" data-type=\"page\" data-id=\"3314\">dispositifs m\u00e9dicaux<\/a> et l&rsquo;<a href=\"https:\/\/bfymold.com\/fr\/industries\/automobile\/\" data-type=\"page\" data-id=\"3360\">automobile<\/a>. <\/p>\n\n<p id=\"ua933da48\">S&rsquo;appuyant sur l&rsquo;analyse par BFY Mold de plus de 10 000 cycles de production, ce guide diss\u00e8que les 5 principaux d\u00e9fauts de moulage par injection, leurs causes profondes et des solutions concr\u00e8tes \u00e9tay\u00e9es par des donn\u00e9es r\u00e9elles. Donnez \u00e0 votre \u00e9quipe les moyens de r\u00e9duire les taux de rebut et d&rsquo;optimiser les temps de cycle. <\/p>\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<h2 class=\"wp-block-heading\" id=\"e3933a75\"><strong>1. Marques d&rsquo;affaissement : Causes et corrections<\/strong><\/h2>\n\n<div style=\"height:38px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<p id=\"u7c2c7eb6\">A quoi \u00e7a ressemble : D\u00e9pressions superficielles localis\u00e9es, souvent \u00e0 proximit\u00e9 de nervures ou de bossages \u00e9pais. <br\/>Localisation courante : renforcement de la coque des appareils \u00e9lectrom\u00e9nagers, colonne d&rsquo;installation de l&rsquo;int\u00e9rieur de l&rsquo;automobile.<\/p>\n\n<div style=\"height:38px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<h3 class=\"wp-block-heading\" id=\"e5ff5f5d\"><strong>Causes profondes<\/strong> :<\/h3>\n\n<div style=\"height:38px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<ul class=\"wp-block-list\">\n<li style=\"line-height:3\">Pression de tassement insuffisante (r\u00e9tr\u00e9cissement du mat\u00e9riau pendant le refroidissement).<\/li>\n\n\n\n<li style=\"line-height:3\">Variations excessives de l&rsquo;\u00e9paisseur de la paroi (par exemple, nervure de 4 mm contre base de 2 mm).<\/li>\n\n\n\n<li style=\"line-height:3\">Temp\u00e9rature \u00e9lev\u00e9e du moule ralentissant le refroidissement.<\/li>\n<\/ul>\n\n<div style=\"height:65px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<figure class=\"wp-block-image aligncenter size-large is-resized\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"682\" src=\"https:\/\/bfymold.com\/wp-content\/uploads\/2025\/01\/business-owner-engineer-managing-and-checking-work-at-factory-1024x682.jpg\" alt=\"D&#xE9;fauts du moulage par injection\" class=\"wp-image-18185\" style=\"width:700px\" title=\"\" srcset=\"https:\/\/bfymold.com\/wp-content\/uploads\/2025\/01\/business-owner-engineer-managing-and-checking-work-at-factory-1024x682.jpg 1024w, https:\/\/bfymold.com\/wp-content\/uploads\/2025\/01\/business-owner-engineer-managing-and-checking-work-at-factory-300x200.jpg 300w, https:\/\/bfymold.com\/wp-content\/uploads\/2025\/01\/business-owner-engineer-managing-and-checking-work-at-factory-768x512.jpg 768w, https:\/\/bfymold.com\/wp-content\/uploads\/2025\/01\/business-owner-engineer-managing-and-checking-work-at-factory-1536x1024.jpg 1536w, https:\/\/bfymold.com\/wp-content\/uploads\/2025\/01\/business-owner-engineer-managing-and-checking-work-at-factory.jpg 2000w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">D\u00e9fauts du moulage par injection<\/figcaption><\/figure>\n\n<div style=\"height:65px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<h3 class=\"wp-block-heading\" id=\"f099bca3\"><strong>Les correctifs de BFY Mold<\/strong> :<\/h3>\n\n<div style=\"height:38px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<ol style=\"line-height:3\" class=\"wp-block-list\">\n<li>Temp\u00e9rature \u00e9lev\u00e9e du moule ralentissant le refroidissement.<\/li>\n<\/ol>\n\n<ul style=\"line-height:3\" class=\"wp-block-list\">\n<li>Augmentez la pression de remplissage de 50 % par d\u00e9faut \u00e0 70-80 % et maintenez-la pendant 5 \u00e0 10 secondes (voir la fiche technique).<\/li>\n\n\n\n<li>Exemple : lors de la production d&rsquo;une coque d&rsquo;outil \u00e9lectrique, la pression de maintien est ajust\u00e9e de 60MPa \u00e0 75MPa, et le taux de r\u00e9tr\u00e9cissement est r\u00e9duit de 8 % \u00e0 1,5 %.<\/li>\n<\/ul>\n\n<ol start=\"2\" style=\"line-height:3\" class=\"wp-block-list\">\n<li>Red\u00e9finir la g\u00e9om\u00e9trie des pi\u00e8ces :<\/li>\n<\/ol>\n\n<ul style=\"line-height:3\" class=\"wp-block-list\">\n<li>L&rsquo;\u00e9paisseur de l&rsquo;armature est contr\u00f4l\u00e9e \u00e0 50-60% de l&rsquo;\u00e9paisseur de la paroi principale (par exemple 3 mm de la paroi principale \u2192 1,5-1,8 mm de l&rsquo;armature).<\/li>\n<\/ul>\n\n<ol start=\"3\" style=\"line-height:3\" class=\"wp-block-list\">\n<li>Optimiser les canaux de refroidissement :<\/li>\n<\/ol>\n\n<ul class=\"wp-block-list\">\n<li style=\"line-height:3\">L&rsquo;ajout d&rsquo;une voie d&rsquo;eau secondaire \u00e0 la zone \u00e0 parois \u00e9paisses r\u00e9duit le temps de refroidissement de 30 % (par exemple, de 15 secondes \u00e0 10 secondes).<\/li>\n<\/ul>\n\n<p id=\"u0fb7b202\">Crit\u00e8res de v\u00e9rification : Tester la stabilit\u00e9 dimensionnelle conform\u00e9ment \u00e0 la norme ASTM D955. Une profondeur de r\u00e9tr\u00e9cissement &lt;0,05 mm est qualifi\u00e9e. <\/p>\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<h2 class=\"wp-block-heading\" id=\"e2f99c15\"><strong>2. Le gauchissement : La perte de forme des pi\u00e8ces<\/strong><\/h2>\n\n<div style=\"height:38px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<p id=\"u2deeab43\">Ce \u00e0 quoi cela ressemble : G\u00e9om\u00e9tries courb\u00e9es ou tordues, en particulier dans les pi\u00e8ces plates. <br\/>Mat\u00e9riaux \u00e0 haute incidence : plastiques semi-cristallins (PP, nylon), mat\u00e9riaux renforc\u00e9s de fibres de verre.<\/p>\n\n<div style=\"height:38px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<h3 class=\"wp-block-heading\" id=\"e5ff5f5d-1\"><strong>Causes profondes<\/strong> :<\/h3>\n\n<div style=\"height:38px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<ul class=\"wp-block-list\">\n<li style=\"line-height:3\">Taux de refroidissement in\u00e9gaux (par exemple, diff\u00e9rence de temp\u00e9rature entre le haut et le bas du moule&gt;15\u00b0C).<\/li>\n\n\n\n<li style=\"line-height:3\">Contraintes r\u00e9siduelles dues \u00e0 des vitesses d&rsquo;injection \u00e9lev\u00e9es.<\/li>\n\n\n\n<li style=\"line-height:3\">Mauvaise orientation des fibres dans les plastiques renforc\u00e9s.<\/li>\n<\/ul>\n\n<div style=\"height:65px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<h3 class=\"wp-block-heading\" id=\"f099bca3-1\"><strong>Les correctifs de BFY Mold<\/strong> :<\/h3>\n\n<div style=\"height:38px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<ol style=\"line-height:3\" class=\"wp-block-list\">\n<li>\u00c9quilibrer le syst\u00e8me de refroidissement :<\/li>\n<\/ol>\n\n<ul style=\"line-height:3\" class=\"wp-block-list\">\n<li>Utiliser une cam\u00e9ra thermique infrarouge pour d\u00e9tecter les diff\u00e9rences de temp\u00e9rature des moules et ajuster le d\u00e9bit d&rsquo;eau pour que la diff\u00e9rence de temp\u00e9rature soit inf\u00e9rieure \u00e0 5\u00b0C.<\/li>\n\n\n\n<li>Cas : Une h\u00e9lice de drone utilise une conception de refroidissement sym\u00e9trique, r\u00e9duisant la d\u00e9formation de 0,8 mm \u00e0 0,2 mm.<\/li>\n<\/ul>\n\n<ol start=\"2\" style=\"line-height:3\" class=\"wp-block-list\">\n<li>R\u00e9duire la vitesse d&rsquo;injection :<\/li>\n<\/ol>\n\n<ul style=\"line-height:3\" class=\"wp-block-list\">\n<li>R\u00e9duire la vitesse d&rsquo;injection de 90 % \u00e0 60-70 % pour r\u00e9duire la contrainte de cisaillement (pour le nylon + 30 % de fibres de verre).<\/li>\n<\/ul>\n\n<ol start=\"3\" style=\"line-height:3\" class=\"wp-block-list\">\n<li>Post-traitement par recuit :<\/li>\n<\/ol>\n\n<ul style=\"line-height:3\" class=\"wp-block-list\">\n<li>R\u00e9duisez la vitesse d&rsquo;injection de 90 % \u00e0 60-70 % pour r\u00e9duire les contraintes de cisaillement (pour le nylon + 30 % de fibres de verre). Recuire les mat\u00e9riaux \u00e0 haute temp\u00e9rature tels que le <a href=\"https:\/\/en.wikipedia.org\/wiki\/Peek\" data-type=\"link\" data-id=\"https:\/\/en.wikipedia.org\/wiki\/Peek\" target=\"_blank\" rel=\"noopener\">PEEK<\/a> (20\u00b0C au-dessus de la Tg, maintenir pendant 2 heures) pour lib\u00e9rer les contraintes internes. <\/li>\n<\/ul>\n\n<div style=\"height:65px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<h3 class=\"wp-block-heading\" id=\"Z9pHt\"><strong>Comparaison des donn\u00e9es :<\/strong><\/h3>\n\n<div style=\"height:38px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<figure style=\"line-height:3\" class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>Conditions<\/td><td>Warpage (mm)<\/td><td>Rendement de la production<\/td><\/tr><tr><td>Original<\/td><td>0.75<\/td><td>72%<\/td><\/tr><tr><td>Apr\u00e8s optimisation<\/td><td>0.18<\/td><td>95%<\/td><\/tr><\/tbody><\/table><\/figure>\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<h2 class=\"wp-block-heading\" id=\"cc924f4e\"><strong>3. Tirs courts : Remplissage incomplet<\/strong><\/h2>\n\n<div style=\"height:38px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<p id=\"ucc22a9c7\">A quoi cela ressemble : Pi\u00e8ces manquant de sections, en particulier dans les zones minces. <br\/>Sc\u00e9narios typiques : connecteurs \u00e9lectroniques \u00e0 paroi mince (moins de 0,5 mm), moules \u00e0 cavit\u00e9s multiples.<\/p>\n\n<div style=\"height:38px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<h3 class=\"wp-block-heading\" id=\"e5ff5f5d-2\"><strong>Causes profondes<\/strong> :<\/h3>\n\n<div style=\"height:38px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<ul class=\"wp-block-list\">\n<li style=\"line-height:3\">Temp\u00e9rature de fusion basse (viscosit\u00e9 du mat\u00e9riau trop \u00e9lev\u00e9e).<\/li>\n\n\n\n<li style=\"line-height:3\">Ventilation inad\u00e9quate (l&rsquo;air emprisonn\u00e9 emp\u00eache l&rsquo;\u00e9coulement).<\/li>\n\n\n\n<li style=\"line-height:3\">Pression\/vitesse d&rsquo;injection insuffisante.<\/li>\n<\/ul>\n\n<div style=\"height:65px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<h3 class=\"wp-block-heading\" id=\"f099bca3-2\"><strong>Les correctifs de BFY Mold<\/strong> :<\/h3>\n\n<div style=\"height:38px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<ol style=\"line-height:3\" class=\"wp-block-list\">\n<li>Augmenter la temp\u00e9rature de fusion<\/li>\n<\/ol>\n\n<ul style=\"line-height:3\" class=\"wp-block-list\">\n<li>La fluidit\u00e9 de l&rsquo;ABS augmente de 40% de 230\u00b0C \u00e0 250\u00b0C (le risque de d\u00e9gradation doit \u00eatre surveill\u00e9).<\/li>\n<\/ul>\n\n<ol start=\"2\" style=\"line-height:3\" class=\"wp-block-list\">\n<li>Ajouter\/agrandir les \u00e9vents :<\/li>\n<\/ol>\n\n<ul style=\"line-height:3\" class=\"wp-block-list\">\n<li>La profondeur de la rainure d&rsquo;\u00e9chappement passe de 0,015 mm \u00e0 0,025 mm (pour le mat\u00e9riau PC).<\/li>\n\n\n\n<li>Des inserts d&rsquo;\u00e9chappement auxiliaires sont ajout\u00e9s au plan de joint.<\/li>\n<\/ul>\n\n<ol start=\"3\" style=\"line-height:3\" class=\"wp-block-list\">\n<li>Adopter des mat\u00e9riaux \u00e0 haut d\u00e9bit :<\/li>\n<\/ol>\n\n<ul style=\"line-height:3\" class=\"wp-block-list\">\n<li>Indice de fusion du PP ordinaire 15g\/10min \u2192 Indice de fusion du PP \u00e0 haut d\u00e9bit 35g\/10min (tel que Sabic PP67MH6).<\/li>\n<\/ul>\n\n<p id=\"u1b89e9bd\">Plan de traitement d&rsquo;urgence : Lorsqu&rsquo;un coup court se produit, v\u00e9rifiez imm\u00e9diatement l&rsquo;\u00e9tat de l&rsquo;anneau chauffant de la buse et de l&rsquo;anneau de contr\u00f4le.<\/p>\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<h2 class=\"wp-block-heading\" id=\"935fc6fd\"><strong>4. Flash : exc\u00e8s de mati\u00e8re sur les bords des pi\u00e8ces<\/strong><\/h2>\n\n<div style=\"height:38px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<p id=\"u57972dc0\">A quoi \u00e7a ressemble : Fines ailettes en plastique le long des plans de joint ou des broches d&rsquo;\u00e9jection. <br\/>Proc\u00e9d\u00e9s \u00e0 haut risque : moulage par injection multicolore, encapsulation de silicone.<\/p>\n\n<div style=\"height:65px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img decoding=\"async\" width=\"788\" height=\"788\" src=\"https:\/\/bfymold.com\/wp-content\/uploads\/2024\/12\/Double-Injection-Molding.webp\" alt=\"Moulage par injection 2k\" class=\"wp-image-15410\" style=\"width:700px\" title=\"\" srcset=\"https:\/\/bfymold.com\/wp-content\/uploads\/2024\/12\/Double-Injection-Molding.webp 788w, https:\/\/bfymold.com\/wp-content\/uploads\/2024\/12\/Double-Injection-Molding-300x300.webp 300w, https:\/\/bfymold.com\/wp-content\/uploads\/2024\/12\/Double-Injection-Molding-150x150.webp 150w, https:\/\/bfymold.com\/wp-content\/uploads\/2024\/12\/Double-Injection-Molding-768x768.webp 768w\" sizes=\"(max-width: 788px) 100vw, 788px\" \/><\/figure>\n\n<div style=\"height:65px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<h3 class=\"wp-block-heading\" id=\"e5ff5f5d-3\"><strong>Causes profondes<\/strong> :<\/h3>\n\n<div style=\"height:38px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<ul class=\"wp-block-list\">\n<li style=\"line-height:3\">D\u00e9calage excessif entre la pression d&rsquo;injection et la force de serrage.<\/li>\n\n\n\n<li style=\"line-height:3\">Composants du moule us\u00e9s (par exemple, surfaces de s\u00e9paration endommag\u00e9es).<\/li>\n\n\n\n<li style=\"line-height:3\">Mat\u00e9riaux \u00e0 faible viscosit\u00e9 (par exemple, silicone liquide LSR).<\/li>\n<\/ul>\n\n<div style=\"height:65px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<h3 class=\"wp-block-heading\" id=\"f099bca3-3\"><strong>Les correctifs de BFY Mold<\/strong> :<\/h3>\n\n<div style=\"height:38px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<ol style=\"line-height:3\" class=\"wp-block-list\">\n<li>Ajuster la force de serrage :<\/li>\n<\/ol>\n\n<ul style=\"line-height:3\" class=\"wp-block-list\">\n<li>Calculer la force de serrage n\u00e9cessaire \u00e0 l&rsquo;aide de la formule suivante : surface projet\u00e9e (cm\u00b2) \u00d7 pression du mat\u00e9riau (MPa) \u00d7 facteur de s\u00e9curit\u00e9 1,2.<\/li>\n\n\n\n<li>Cas de figure : Une palette en PP d&rsquo;une surface projet\u00e9e de 800 cm\u00b2 n\u00e9cessite une force de serrage : 800 \u00d7 35 \u00d7 1,2 = 336 tonnes \u2192 Choisir une machine de 350 tonnes.<\/li>\n<\/ul>\n\n<ol start=\"2\" style=\"line-height:3\" class=\"wp-block-list\">\n<li>Entretien des moisissures :<\/li>\n<\/ol>\n\n<ul style=\"line-height:3\" class=\"wp-block-list\">\n<li>Polissez le plan de joint tous les 50 000 moules et maintenez la valeur Ra inf\u00e9rieure \u00e0 0,4\u03bcm.<\/li>\n<\/ul>\n\n<ol start=\"3\" style=\"line-height:3\" class=\"wp-block-list\">\n<li>R\u00e9duire la vitesse d&rsquo;injection :<\/li>\n<\/ol>\n\n<ul style=\"line-height:3\" class=\"wp-block-list\">\n<li>La vitesse d&rsquo;injection du LSR passe de 50 % \u00e0 30 %, ce qui r\u00e9duit le risque de d\u00e9bordement.<\/li>\n<\/ul>\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<h2 class=\"wp-block-heading\" id=\"4d15af29\"><strong>5. Lignes d&rsquo;\u00e9coulement : Risques esth\u00e9tiques et structurels<\/strong><\/h2>\n\n<div style=\"height:38px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<p id=\"u9f4bc96b\">\u00c0 quoi cela ressemble-t-il ? Motifs ondul\u00e9s ou d\u00e9coloration le long des voies d&rsquo;\u00e9coulement. <br\/>Couramment utilis\u00e9 dans les pi\u00e8ces transparentes (telles que les abat-jour en PC) et les surfaces tr\u00e8s brillantes.<\/p>\n\n<div style=\"height:65px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<figure class=\"wp-block-image aligncenter size-large is-resized\"><img decoding=\"async\" width=\"759\" height=\"1024\" src=\"https:\/\/bfymold.com\/wp-content\/uploads\/2024\/01\/transparent-plastic-box-isolated-on-white-background--759x1024.jpg\" alt=\"Fabrication de bo&#xEE;tes en plastique transparent\" class=\"wp-image-2789\" style=\"width:650px\" title=\"\" srcset=\"https:\/\/bfymold.com\/wp-content\/uploads\/2024\/01\/transparent-plastic-box-isolated-on-white-background--759x1024.jpg 759w, https:\/\/bfymold.com\/wp-content\/uploads\/2024\/01\/transparent-plastic-box-isolated-on-white-background--222x300.jpg 222w, https:\/\/bfymold.com\/wp-content\/uploads\/2024\/01\/transparent-plastic-box-isolated-on-white-background--768x1036.jpg 768w, https:\/\/bfymold.com\/wp-content\/uploads\/2024\/01\/transparent-plastic-box-isolated-on-white-background--1138x1536.jpg 1138w, https:\/\/bfymold.com\/wp-content\/uploads\/2024\/01\/transparent-plastic-box-isolated-on-white-background-.jpg 1482w\" sizes=\"(max-width: 759px) 100vw, 759px\" \/><figcaption class=\"wp-element-caption\">Fabrication de bo\u00eetes en plastique transparent<\/figcaption><\/figure>\n\n<div style=\"height:65px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<h3 class=\"wp-block-heading\" id=\"e5ff5f5d-4\"><strong>Causes profondes<\/strong> :<\/h3>\n\n<div style=\"height:38px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<ul class=\"wp-block-list\">\n<li style=\"line-height:3\">Fluctuations de la temp\u00e9rature de la mati\u00e8re fondue (par exemple, fluctuations de \u00b110\u00b0C).<\/li>\n\n\n\n<li style=\"line-height:3\">Interf\u00e9rence multi-porte provoquant des collisions de fronts d&rsquo;\u00e9coulement.<\/li>\n\n\n\n<li style=\"line-height:3\">Contamination ou humidit\u00e9 dans le mat\u00e9riau.<\/li>\n<\/ul>\n\n<div style=\"height:65px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<h3 class=\"wp-block-heading\" id=\"f099bca3-4\"><strong>Les correctifs de BFY Mold<\/strong> :<\/h3>\n\n<div style=\"height:38px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<ol style=\"line-height:3\" class=\"wp-block-list\">\n<li>Stabiliser la temp\u00e9rature de fusion<\/li>\n<\/ol>\n\n<ul style=\"line-height:3\" class=\"wp-block-list\">\n<li>V\u00e9rifier le serpentin de chauffage et le thermocouple pour s&rsquo;assurer que la fluctuation de la temp\u00e9rature de la barrique n&rsquo;est pas trop importante. <\/li>\n<\/ul>\n\n<ol start=\"2\" style=\"line-height:3\" class=\"wp-block-list\">\n<li>Optimiser l&#8217;emplacement des portes :<\/li>\n<\/ol>\n\n<ul style=\"line-height:3\" class=\"wp-block-list\">\n<li>Gr\u00e2ce \u00e0 l&rsquo;analyse de l&rsquo;\u00e9coulement du moule, la diff\u00e9rence de temp\u00e9rature du front d&rsquo;\u00e9coulement a \u00e9t\u00e9 contr\u00f4l\u00e9e \u00e0 5\u00b0C pr\u00e8s.<\/li>\n<\/ul>\n\n<ol start=\"3\" style=\"line-height:3\" class=\"wp-block-list\">\n<li>Mat\u00e9riaux pr\u00e9-s\u00e9ch\u00e9s :<\/li>\n<\/ol>\n\n<ul style=\"line-height:3\" class=\"wp-block-list\">\n<li>Nylon s\u00e9ch\u00e9 \u00e0 85\u00b0C pendant 4 heures, teneur en humidit\u00e9 &lt;0,15%.<\/li>\n<\/ul>\n\n<p id=\"u57172a48\">Cas client : Le fabricant de lentilles LED a r\u00e9duit le taux de d\u00e9faut de la marque d&rsquo;\u00e9coulement de 12 % \u00e0 0,3 % en ajustant la position de la porte et la temp\u00e9rature du moule \u00e0 110 \u00b0C.<\/p>\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<h2 class=\"wp-block-heading\" id=\"cff1c91f\"><strong>Bo\u00eete \u00e0 outils de pr\u00e9vention des d\u00e9fauts de BFY Mold<\/strong><\/h2>\n\n<div style=\"height:38px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<ul class=\"wp-block-list\">\n<li style=\"line-height:3\">Syst\u00e8me de surveillance en temps r\u00e9el : Des capteurs install\u00e9s sur la machine suivent les courbes de pression et de temp\u00e9rature et d\u00e9clenchent automatiquement une alarme lorsqu&rsquo;elles s&rsquo;\u00e9cartent de la norme.<\/li>\n\n\n\n<li style=\"line-height:3\">Base de donn\u00e9es des mat\u00e9riaux : Mod\u00e8les de param\u00e8tres de processus pour plus de 1000 mat\u00e9riaux (tels que le temps de maintien et la vitesse de refroidissement).<\/li>\n\n\n\n<li style=\"line-height:3\">Service de r\u00e9ponse rapide : Fournir une assistance technique 24 heures sur 24, 7 jours sur 7, pour diagnostiquer \u00e0 distance la cause premi\u00e8re des d\u00e9fauts de moulage par injection.<\/li>\n<\/ul>\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<h2 class=\"wp-block-heading\" id=\"642f424a\"><strong>Conclusion<\/strong><\/h2>\n\n<div style=\"height:38px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<p id=\"u7d79c4b0\">Corrigez les marques d&rsquo;enfoncement, les gauchissements, les bavures et bien plus encore gr\u00e2ce aux solutions \u00e9prouv\u00e9es de BFY Mold pour les d\u00e9fauts de moulage par injection. <a href=\"https:\/\/bfymold.com\/fr\/contact\/\" data-type=\"page\" data-id=\"1533\">Contactez-nous<\/a> et optimisez la qualit\u00e9 de votre production d\u00e8s aujourd&rsquo;hui.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Introduction Les d\u00e9fauts de moulage par injection co\u00fbtent aux fabricants jusqu&rsquo;\u00e0 15 % de perte de mati\u00e8re et 20 % de retard de livraison par an. Qu&rsquo;il s&rsquo;agisse de marques d&rsquo;enfoncement ou de d\u00e9formation, m\u00eame des probl\u00e8mes mineurs peuvent entra\u00eener des rappels co\u00fbteux, en particulier dans les secteurs r\u00e9glement\u00e9s tels que les dispositifs m\u00e9dicaux et [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":18186,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_eb_attr":"","_sitemap_exclude":false,"_sitemap_priority":"","_sitemap_frequency":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[49],"tags":[],"class_list":["post-18446","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/bfymold.com\/fr\/wp-json\/wp\/v2\/posts\/18446","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bfymold.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/bfymold.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/bfymold.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/bfymold.com\/fr\/wp-json\/wp\/v2\/comments?post=18446"}],"version-history":[{"count":0,"href":"https:\/\/bfymold.com\/fr\/wp-json\/wp\/v2\/posts\/18446\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/bfymold.com\/fr\/wp-json\/wp\/v2\/media\/18186"}],"wp:attachment":[{"href":"https:\/\/bfymold.com\/fr\/wp-json\/wp\/v2\/media?parent=18446"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bfymold.com\/fr\/wp-json\/wp\/v2\/categories?post=18446"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bfymold.com\/fr\/wp-json\/wp\/v2\/tags?post=18446"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}