{"id":18873,"date":"2024-04-19T16:57:09","date_gmt":"2024-04-19T08:57:09","guid":{"rendered":"https:\/\/firstmold.com\/?p=18873"},"modified":"2025-07-15T13:33:18","modified_gmt":"2025-07-15T05:33:18","slug":"quality-and-acceptance-standards-for-injection-molded-parts","status":"publish","type":"post","link":"https:\/\/firstmold.com\/fr\/tips\/quality-and-acceptance-standards-for-injection-molded-parts\/","title":{"rendered":"Normes de qualit\u00e9 et d'acceptation pour les pi\u00e8ces moul\u00e9es par injection conventionnelles"},"content":{"rendered":"<p>Dans l'article \"<a href=\"https:\/\/firstmold.com\/fr\/tips\/injection-molding-defects\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>D\u00e9fauts du moulage par injection<\/strong><\/a>Nous indiquons que les concepteurs de produits ou les acheteurs doivent avoir une connaissance approfondie des d\u00e9fauts du moulage par injection. Cela leur permettra d'effectuer plus facilement des contr\u00f4les de qualit\u00e9 clairs des pi\u00e8ces moul\u00e9es par injection apr\u00e8s avoir charg\u00e9 une usine de fabriquer des produits en plastique. \u00c9tant donn\u00e9 que chaque entreprise de conception de produits a des structures et des apparences diff\u00e9rentes, les acheteurs doivent \u00e9tablir leurs propres normes de qualit\u00e9 ou crit\u00e8res d'acceptation pour les produits moul\u00e9s par injection.<\/p>\n\n\n\n<p>FirstMold ne peut pas discuter des normes de qualit\u00e9 du moulage par injection pour chaque produit sp\u00e9cifique. Cependant, nous pouvons offrir une acceptation constructive des suggestions de normes pour les composants conventionnels de moulage par injection.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-measurement-surfaces-the-observed-surfaces\">Surfaces de mesure : Les surfaces observ\u00e9es<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-class-a-surfaces\">Surfaces de classe A<\/h3>\n\n\n\n<p>Les surfaces de classe A d\u00e9signent g\u00e9n\u00e9ralement les surfaces qui, dans la conception des produits, doivent r\u00e9pondre aux normes esth\u00e9tiques les plus \u00e9lev\u00e9es et sont facilement visibles dans des conditions d'utilisation normales.<\/p>\n\n\n\n<p>Dans la construction automobile et la conception industrielle, les surfaces de classe A sont celles qui r\u00e9pondent aux normes d'apparence les plus strictes. Elles doivent \u00eatre tr\u00e8s lisses, sans d\u00e9faut et poss\u00e9der une qualit\u00e9 de surface extr\u00eamement \u00e9lev\u00e9e. Pour r\u00e9pondre \u00e0 ces normes de qualit\u00e9 du moulage par injection, les surfaces de classe A subissent souvent un traitement complexe afin de garantir que leurs surfaces sont lisses et sans d\u00e9faut.<\/p>\n\n\n\n<p>En outre, la conception des surfaces de classe A ne se concentre pas uniquement sur les effets visuels, mais prend \u00e9galement en compte des facteurs tels que la r\u00e9sistance structurelle, la durabilit\u00e9 et la fonctionnalit\u00e9.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-class-b-surfaces\">Surfaces de classe B<\/h3>\n\n\n\n<p>Les surfaces de classe B d\u00e9signent les zones d'un produit ou d'un article qui sont expos\u00e9es mais pas tr\u00e8s visibles. Il s'agit g\u00e9n\u00e9ralement de surfaces qui ne sont pas directement visibles dans des conditions d'utilisation normales. Par exemple, l'arri\u00e8re, le c\u00f4t\u00e9 ou le fond d'une bo\u00eete de couleur peuvent \u00eatre d\u00e9finis comme des surfaces de classe B. Bien que ces surfaces soient visibles, elles ne constituent pas le point de mire principal.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-class-c-surfaces\">Surfaces de classe C<\/h3>\n\n\n\n<p>Il s'agit des surfaces inf\u00e9rieures des assemblages, des structures ou des surfaces des pi\u00e8ces qui sont en contact les unes avec les autres lors de l'assemblage.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-inspection-conditions\">Conditions d'inspection<\/h2>\n\n\n\n<p>1. Cette norme part du principe que la fonctionnalit\u00e9 n'est pas affect\u00e9e et qu'elle est compar\u00e9e visuellement. Elle n'est donc pas sup\u00e9rieure aux calibres limites et aux normes sp\u00e9cifiques de moulage par injection.<\/p>\n\n\n\n<p>2. Normalement, l'inspection visuelle se fait \u00e0 30 cm pendant 3 \u00e0 5 secondes. Si des d\u00e9fauts sont d\u00e9tect\u00e9s, l'observateur se d\u00e9place \u00e0 50 cm et observe pendant 3 \u00e0 7 secondes. Les d\u00e9fauts difficiles \u00e0 voir et peu \u00e9vidents sont consid\u00e9r\u00e9s comme corrects.<\/p>\n\n\n\n<p>3. La source lumineuse d'inspection est constitu\u00e9e par les lampes fluorescentes utilis\u00e9es dans l'usine de production, avec une acuit\u00e9 visuelle de 0,7 ou plus.<\/p>\n\n\n\n<p>4. Angle d'observation : perpendiculaire \u00e0 la surface observ\u00e9e et \u00e0 un angle de 45 degr\u00e9s par rapport au dessus ou au dessous.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-inspection-suggestions-for-conventional-injection-molding-quality-standards\">Suggestions d'inspection pour les normes de qualit\u00e9 du moulage par injection conventionnel<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-flashing\">Clignotant<\/h3>\n\n\n\n<p>Les trous de trompette, les boutonni\u00e8res, les trous d'interrupteur et tous les trous d'accouplement des pi\u00e8ces mobiles ne doivent pas \u00eatre recouverts d'un solin. Les positions cach\u00e9es des colonnes et les solins structurels ne doivent pas affecter l'assemblage ou la fonctionnalit\u00e9. Les zones ext\u00e9rieures et potentiellement expos\u00e9es qui ont une incidence sur la s\u00e9curit\u00e9 doivent \u00eatre lisses au toucher et ne pas provoquer de rayures.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-deformation\">D\u00e9formation<\/h3>\n\n\n\n<p>La d\u00e9formation de la coque de base soutenue par une plate-forme ne doit pas d\u00e9passer 0,3 mm, et la d\u00e9formation de la coque de face correspondante ne doit pas non plus d\u00e9passer 0,3 mm. Les d\u00e9formations d'autres pi\u00e8ces en plastique sont acceptables pour autant qu'elles n'affectent pas l'assemblage ou la fonctionnalit\u00e9.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-dimensions\">Dimensions<\/h3>\n\n\n\n<p>Les exigences dimensionnelles doivent se r\u00e9f\u00e9rer au tableau et \u00eatre contr\u00f4l\u00e9es selon les tol\u00e9rances suivantes :<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><td><strong>Type de d\u00e9faut<\/strong><\/td><td><strong>Classe A<\/strong><\/td><td><strong>Classe B<\/strong><\/td><td><strong>Classe C<\/strong><\/td><\/tr><\/thead><tbody><tr><td>Fissures<\/td><td>Non autoris\u00e9<\/td><td>Non autoris\u00e9<\/td><td>Autoris\u00e9 s'il n'y a pas d'impact sur l'apparence ou la fonctionnalit\u00e9<\/td><\/tr><tr><td><a href=\"https:\/\/firstmold.com\/fr\/tips\/short-shot-in-injection-molding\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Coup court<\/strong><\/a><\/td><td>Non autoris\u00e9<\/td><td>Non autoris\u00e9<\/td><td>Mineure acceptable si elle n'a pas d'impact sur l'apparence ou la fonction<\/td><\/tr><tr><td><a href=\"https:\/\/firstmold.com\/fr\/tips\/splay-marks-silver-streaks-in-injeciton-molding\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Traits d'argent<\/strong><\/a><\/td><td>Norme minimale selon l'\u00e9chantillon d'ing\u00e9nierie<\/td><td>Norme minimale selon l'\u00e9chantillon d'ing\u00e9nierie<\/td><td>Norme minimale selon l'\u00e9chantillon d'ing\u00e9nierie<\/td><\/tr><tr><td><a href=\"https:\/\/firstmold.com\/fr\/tips\/sink-marks\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Marque d'\u00e9vier<\/strong><\/a><\/td><td>Norme minimale, pas de marques visibles ni de d\u00e9pressions tactiles de 45\u00b0 \u00e0 90\u00b0.<\/td><td>Norme minimale, pas de marques visibles ni de d\u00e9pressions tactiles de 45\u00b0 \u00e0 90\u00b0.<\/td><td>Norme minimale, pas de marques visibles ni de d\u00e9pressions tactiles de 45\u00b0 \u00e0 90\u00b0.<\/td><\/tr><tr><td><a href=\"https:\/\/firstmold.com\/fr\/tips\/black-spots-and-black-specks\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Taches sombres\/m\u00e9langes de couleurs\/taches de fond<\/strong><\/a><\/td><td>Pas plus de 2 positions, s\u00e9paration &gt;100mm, chacune &lt;0,4mm\u00b2.<\/td><td>Pas plus de 3 positions, s\u00e9paration &gt;100mm, chacune &lt;0,5mm\u00b2.<\/td><td>Pas plus de 4 positions, s\u00e9paration &gt;100mm, chacune &lt;0,9mm\u00b2.<\/td><\/tr><tr><td>Rayures\/impacts<\/td><td>Pas plus long que 8 mm, pas plus large que 0,05 mm.<\/td><td>Pas plus long que 10 mm, pas plus large que 0,1 mm.<\/td><td>Leur longueur ne d\u00e9passe pas 2,5 mm et leur largeur ne d\u00e9passe pas 0,15 mm.<\/td><\/tr><tr><td><a href=\"https:\/\/firstmold.com\/fr\/tips\/ejector-pin-marks\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Marques \u00e9ject\u00e9es<\/strong><\/a><\/td><td>Non autoris\u00e9<\/td><td>Non autoris\u00e9<\/td><td>Acceptable s'il n'y a pas d'impact visuel, ni de saillie fonctionnelle<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-gate-vestiges\">Porte Vestiges<\/h3>\n\n\n\n<p>1. Les zones expos\u00e9es ou potentiellement expos\u00e9es (par exemple, les portes des batteries) qui peuvent affecter \u00e0 la fois l'apparence et les normes de s\u00e9curit\u00e9 doivent avoir des positions de porte plates et r\u00e9pondre aux normes de s\u00e9curit\u00e9 afin de garantir qu'elles ne causent pas de rayures.<\/p>\n\n\n\n<p>2. Les vestiges de porte qui ont des exigences d'assemblage mais ne doivent pas \u00eatre expos\u00e9s et n'affectent pas l'assemblage doivent \u00eatre contr\u00f4l\u00e9s \u00e0 0,5 mm pr\u00e8s et ne doivent pas avoir d'incidence sur la fonctionnalit\u00e9.<\/p>\n\n\n\n<p>3. La porte ne n\u00e9cessitant pas d'assemblage, n'affectant pas la fonctionnalit\u00e9 et n'\u00e9tant pas expos\u00e9e doit \u00eatre contr\u00f4l\u00e9e \u00e0 1,5 mm pr\u00e8s. Les positions du portillon peuvent avoir une forme libre.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><td><strong>Gamme de dimensions (mm)<\/strong><\/td><td><strong>Tol\u00e9rance (mm)<\/strong><\/td><\/tr><\/thead><tbody><tr><td>0 - 10<\/td><td>\u00b10.05<\/td><\/tr><tr><td>10.1 - 50<\/td><td>\u00b10.10<\/td><\/tr><tr><td>50.1 - 100<\/td><td>\u00b10.15<\/td><\/tr><tr><td>100.1 - 200<\/td><td>\u00b10.20<\/td><\/tr><tr><td>Plus de 200<\/td><td>\u00b10.25<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-in-conclusion\">En conclusion<\/h2>\n\n\n\n<p>En temps normal, les normes d'acceptation de la qualit\u00e9 des produits moul\u00e9s par injection par les acheteurs sont beaucoup plus complexes que les suggestions susmentionn\u00e9es. Elles peuvent concerner des aspects tels que l'emballage, l'\u00e9tiquetage, le traitement de surface, l'apparence, la structure, les performances, la facilit\u00e9 d'utilisation, la fonctionnalit\u00e9 de l'assemblage et bien d'autres encore. Vous devez donc cr\u00e9er un ensemble d\u00e9taill\u00e9 de crit\u00e8res d'acceptation bas\u00e9s sur vos besoins sp\u00e9cifiques afin de vous assurer que les produits finis de votre fournisseur r\u00e9pondent \u00e0 vos normes de qualit\u00e9 en mati\u00e8re de moulage par injection.<\/p>","protected":false},"excerpt":{"rendered":"<p>Normes de qualit\u00e9 \/ d'acceptation \/ d'inspection des produits plastiques moul\u00e9s par injection recommand\u00e9es par les grandes usines de moulage par injection<\/p>","protected":false},"author":5,"featured_media":18875,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[48],"tags":[51],"class_list":["post-18873","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tips","tag-injection-molding"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.3 (Yoast SEO v27.5) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Injection Molding Quality Standards | Plastic Parts Criteria<\/title>\n<meta name=\"description\" content=\"Recommended plastic injection molded product quality \/ acceptance \/ inspection standards from large injection molding factories\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/firstmold.com\/fr\/tips\/quality-and-acceptance-standards-for-injection-molded-parts\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Quality And Acceptance Standards For Conventional Injection Molded Parts\" \/>\n<meta property=\"og:description\" content=\"Recommended plastic injection molded product quality \/ acceptance \/ inspection standards from large injection molding factories\" \/>\n<meta property=\"og:url\" content=\"https:\/\/firstmold.com\/fr\/tips\/quality-and-acceptance-standards-for-injection-molded-parts\/\" \/>\n<meta property=\"og:site_name\" content=\"First Mold\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.youtube.com\/@firstmold\" \/>\n<meta property=\"article:published_time\" content=\"2024-04-19T08:57:09+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-07-15T05:33:18+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/04\/injection-molding-quality-standards-featured-image-1.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"800\" \/>\n\t<meta property=\"og:image:height\" content=\"800\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"James Li\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@firstmold2011\" \/>\n<meta name=\"twitter:site\" content=\"@firstmold2011\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"James Li\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"5 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/firstmold.com\\\/tips\\\/quality-and-acceptance-standards-for-injection-molded-parts\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/firstmold.com\\\/tips\\\/quality-and-acceptance-standards-for-injection-molded-parts\\\/\"},\"author\":{\"name\":\"James Li\",\"@id\":\"https:\\\/\\\/firstmold.com\\\/#\\\/schema\\\/person\\\/41882a87bad7ee7a4cab1e8b0b75a0ae\"},\"headline\":\"Quality And Acceptance Standards For Conventional Injection Molded Parts\",\"datePublished\":\"2024-04-19T08:57:09+00:00\",\"dateModified\":\"2025-07-15T05:33:18+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/firstmold.com\\\/tips\\\/quality-and-acceptance-standards-for-injection-molded-parts\\\/\"},\"wordCount\":861,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/firstmold.com\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/firstmold.com\\\/tips\\\/quality-and-acceptance-standards-for-injection-molded-parts\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/firstmold.com\\\/wp-content\\\/uploads\\\/2024\\\/04\\\/injection-molding-quality-standards-featured-image-1.jpg\",\"keywords\":[\"Injection Molding\"],\"articleSection\":[\"Tips &amp; 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