{"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\/nl\/tips\/quality-and-acceptance-standards-for-injection-molded-parts\/","title":{"rendered":"Kwaliteits- en acceptatienormen voor conventionele spuitgietproducten"},"content":{"rendered":"<p>In het artikel \"<a href=\"https:\/\/firstmold.com\/nl\/tips\/injection-molding-defects\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Defecten bij spuitgieten<\/strong><\/a>,\" vermelden we dat productontwerpers of inkopers een gedetailleerd inzicht moeten hebben in spuitgietfouten. Zo kunnen ze gemakkelijker duidelijke kwaliteitsinspecties uitvoeren van spuitgietonderdelen nadat ze een fabriek opdracht hebben gegeven om kunststof producten te produceren. Omdat elk productontwerpbedrijf verschillende productstructuren en verschijningsvormen heeft, moeten inkopers hun eigen kwaliteitsnormen voor spuitgieten of acceptatiecriteria voor spuitgegoten producten opstellen.<\/p>\n\n\n\n<p>FirstMold kan de spuitgietkwaliteitsnorm voor elk specifiek product niet bespreken. We kunnen echter wel constructieve suggesties voor standaard spuitgietonderdelen aanvaarden.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-measurement-surfaces-the-observed-surfaces\">Meetoppervlakken: De waargenomen oppervlakken<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-class-a-surfaces\">Oppervlakken van klasse A<\/h3>\n\n\n\n<p>Oppervlakken van klasse A verwijzen doorgaans naar de oppervlakken in productontwerpen die aan de hoogste esthetische normen moeten voldoen en die onder normale gebruiksomstandigheden gemakkelijk zichtbaar zijn.<\/p>\n\n\n\n<p>Bij autofabricage en industrieel ontwerp zijn oppervlakken van klasse A oppervlakken waarvoor de strengste uiterlijke normen gelden. Ze moeten zeer glad en onberispelijk zijn en een extreem hoge oppervlaktekwaliteit bezitten. Om aan deze kwaliteitsnormen voor spuitgieten te voldoen, ondergaan oppervlakken van klasse A vaak complexe bewerkingen om ervoor te zorgen dat hun oppervlakken glad en onberispelijk zijn.<\/p>\n\n\n\n<p>Bovendien richt het ontwerp van klasse A-oppervlakken zich niet alleen op visuele effecten, maar houdt het ook rekening met factoren zoals structurele sterkte, duurzaamheid en functionaliteit.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-class-b-surfaces\">Oppervlakken van klasse B<\/h3>\n\n\n\n<p>Oppervlakken van klasse B zijn oppervlakken op een product of voorwerp die blootliggen maar niet duidelijk zichtbaar zijn. Meestal zijn dit oppervlakken die niet direct zichtbaar zijn onder normale gebruiksomstandigheden. De achterkant, zijkant of onderkant van een kleurendoos kan bijvoorbeeld worden gedefinieerd als klasse B-oppervlakken. Hoewel deze oppervlakken zichtbaar zijn, zijn ze niet het belangrijkste aandachtspunt.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-class-c-surfaces\">Oppervlakken van klasse C<\/h3>\n\n\n\n<p>Dit zijn de onderoppervlakken van samenstellingen, constructies of oppervlakken van onderdelen die tijdens de assemblage met elkaar in contact komen.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-inspection-conditions\">Inspectievoorwaarden<\/h2>\n\n\n\n<p>1. Deze norm is gebaseerd op de vooronderstelling dat de functionaliteit niet wordt be\u00efnvloed en visueel wordt vergeleken. Daarom is hij niet superieur aan grensmaten en specifieke speciale spuitgietnormen.<\/p>\n\n\n\n<p>2. Normaal gesproken vindt visuele inspectie plaats op 30 cm gedurende 3-5 seconden. Als er defecten worden gevonden, gaat de waarnemer naar 50 cm en observeert 3-7 seconden. Defecten die moeilijk te zien en niet erg duidelijk zijn, worden als OK beschouwd.<\/p>\n\n\n\n<p>3. De lichtbron voor inspectie is de fluorescentielamp die in de productiefabriek wordt gebruikt, met een gezichtsscherpte van 0,7 of hoger.<\/p>\n\n\n\n<p>4. Waarnemingshoek: loodrecht op het waargenomen oppervlak en onder een hoek van 45 graden van boven of onder.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-inspection-suggestions-for-conventional-injection-molding-quality-standards\">Inspectiesuggesties voor conventionele kwaliteitsnormen voor spuitgieten<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-flashing\">Knipperend<\/h3>\n\n\n\n<p>Trompetgaten, knoopsgaten, schakelgaten en alle bevestigingsgaten voor bewegende delen mogen niet worden afgeplakt. Verborgen kolomposities en structurele gootstukken mogen de montage of functionaliteit niet be\u00efnvloeden. Uitwendige en mogelijk blootliggende delen die van invloed zijn op de veiligheid moeten glad aanvoelen en mogen geen krassen veroorzaken.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-deformation\">Vervorming<\/h3>\n\n\n\n<p>De vervorming van de basisshell die op een platform rust, mag niet groter zijn dan 0,3 mm en de vervorming van de bijbehorende face shell mag ook niet groter zijn dan 0,3 mm. Vervormingen in andere kunststof onderdelen zijn aanvaardbaar zolang ze geen invloed hebben op de assemblage of functionaliteit.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-dimensions\">Afmetingen<\/h3>\n\n\n\n<p>Raadpleeg de tabel voor de maatvereisten en controleer deze aan de hand van de volgende toleranties:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><td><strong>Type defect<\/strong><\/td><td><strong>Klasse A<\/strong><\/td><td><strong>Klasse B<\/strong><\/td><td><strong>Klasse C<\/strong><\/td><\/tr><\/thead><tbody><tr><td>Scheuren<\/td><td>Niet toegestaan<\/td><td>Niet toegestaan<\/td><td>Toegestaan indien geen invloed op uiterlijk of functionaliteit<\/td><\/tr><tr><td><a href=\"https:\/\/firstmold.com\/nl\/tips\/short-shot-in-injection-molding\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Kort schot<\/strong><\/a><\/td><td>Niet toegestaan<\/td><td>Niet toegestaan<\/td><td>Minor aanvaardbaar indien geen invloed op uiterlijk of functie<\/td><\/tr><tr><td><a href=\"https:\/\/firstmold.com\/nl\/tips\/splay-marks-silver-streaks-in-injeciton-molding\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Zilveren Strepen<\/strong><\/a><\/td><td>Minimumstandaard volgens technisch monster<\/td><td>Minimumstandaard volgens technisch monster<\/td><td>Minimumstandaard volgens technisch monster<\/td><\/tr><tr><td><a href=\"https:\/\/firstmold.com\/nl\/tips\/sink-marks\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Gootsteen<\/strong><\/a><\/td><td>Minimumnorm, geen zichtbare markeringen of voelbare indrukkingen van 45\u00b0 tot 90\u00b0<\/td><td>Minimumnorm, geen zichtbare markeringen of voelbare indrukkingen van 45\u00b0 tot 90\u00b0<\/td><td>Minimumnorm, geen zichtbare markeringen of voelbare indrukkingen van 45\u00b0 tot 90\u00b0<\/td><\/tr><tr><td><a href=\"https:\/\/firstmold.com\/nl\/tips\/black-spots-and-black-specks\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Donkere vlekken\/kleurmengsels\/vlekken<\/strong><\/a><\/td><td>Niet meer dan 2 posities, scheiding &gt;100mm, elk &lt;0,4mm\u00b2<\/td><td>Niet meer dan 3 posities, afstand &gt;100mm, elk &lt;0,5mm\u00b2<\/td><td>Niet meer dan 4 posities, afstand &gt;100mm, elk &lt;0,9mm\u00b2<\/td><\/tr><tr><td>Krassen\/schade<\/td><td>Elk niet langer dan 8 mm, niet breder dan 0,05 mm<\/td><td>Elk niet langer dan 10 mm, niet breder dan 0,1 mm<\/td><td>Elk niet langer dan 2,5mm, niet breder dan 0,15mm<\/td><\/tr><tr><td><a href=\"https:\/\/firstmold.com\/nl\/tips\/ejector-pin-marks\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Uitgeworpen markeringen<\/strong><\/a><\/td><td>Niet toegestaan<\/td><td>Niet toegestaan<\/td><td>Aanvaardbaar indien geen visuele impact, geen functioneel uitsteeksel<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-gate-vestiges\">Overblijfselen van de poort<\/h3>\n\n\n\n<p>1. Blootliggende of mogelijk blootliggende delen (bijvoorbeeld batterijkleppen) die zowel het uiterlijk als de veiligheidsnormen kunnen be\u00efnvloeden, moeten vlakke hekposities hebben en voldoen aan de veiligheidsnormen om ervoor te zorgen dat ze geen krassen veroorzaken.<\/p>\n\n\n\n<p>2. Poortrestanten waarvoor assemblagevereisten gelden, maar die niet mogen worden blootgesteld en geen invloed hebben op de assemblage, moeten binnen 0,5 mm worden gehouden en mogen de functionaliteit niet be\u00efnvloeden.<\/p>\n\n\n\n<p>3. De poort zonder assemblagevereisten, die de functionaliteit niet be\u00efnvloedt en niet wordt blootgesteld, moet worden gecontroleerd binnen 1,5 mm. De poortposities kunnen een vrije vorm hebben.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><td><strong>Maatbereik (mm)<\/strong><\/td><td><strong>Tolerantie (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>Meer dan 200<\/td><td>\u00b10.25<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-in-conclusion\">Conclusie<\/h2>\n\n\n\n<p>In normale omstandigheden zijn de aanvaardingsnormen voor de kwaliteit van spuitgegoten producten voor kopers veel complexer dan de hierboven vermelde suggesties. Ze kunnen betrekking hebben op aspecten zoals de verpakking, de etikettering, de oppervlaktebehandeling, het uitzicht, de structuur, de prestaties, de bruikbaarheid, de assemblagefunctionaliteit en nog veel meer. Daarom moet u een gedetailleerde reeks acceptatiecriteria opstellen op basis van uw specifieke behoeften om ervoor te zorgen dat de afgewerkte producten van uw leverancier voldoen aan uw kwaliteitsnormen voor spuitgieten.<\/p>","protected":false},"excerpt":{"rendered":"<p>Aanbevolen kwaliteit \/ acceptatie \/ inspectienormen voor kunststof spuitgietproducten van grote spuitgietfabrieken<\/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\/nl\/tips\/quality-and-acceptance-standards-for-injection-molded-parts\/\" \/>\n<meta property=\"og:locale\" content=\"nl_NL\" \/>\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\/nl\/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=\"Geschreven door\" \/>\n\t<meta name=\"twitter:data1\" content=\"James Li\" \/>\n\t<meta name=\"twitter:label2\" content=\"Geschatte leestijd\" \/>\n\t<meta name=\"twitter:data2\" content=\"5 minuten\" \/>\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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