{"id":3113,"date":"2019-10-15T09:07:13","date_gmt":"2019-10-15T09:07:13","guid":{"rendered":"https:\/\/www.hbjinyong.com\/?p=3113"},"modified":"2022-12-04T12:13:29","modified_gmt":"2022-12-04T12:13:29","slug":"what-is-hot-dip-galvanizing","status":"publish","type":"post","link":"https:\/\/www.hbjinyong.com\/fr\/what-is-hot-dip-galvanizing\/","title":{"rendered":"Qu&#039;est-ce que la galvanisation \u00e0 chaud ? Comment fonctionne-t-elle ? - Le guide ultime"},"content":{"rendered":"<p>L&#039;acier est un mat\u00e9riau pr\u00e9cieux largement utilis\u00e9 dans les secteurs de la construction et de l&#039;ing\u00e9nierie. L&#039;acier est durable, polyvalent et peu co\u00fbteux, mais il est sujet \u00e0 la corrosion, en particulier dans les environnements ext\u00e9rieurs.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter size-full wp-image-3116\" src=\"https:\/\/www.hbjinyong.com\/wp-content\/uploads\/2019\/10\/galvanizing.jpg\" alt=\"galvanisation\" width=\"1000\" height=\"667\" srcset=\"https:\/\/www.hbjinyong.com\/wp-content\/uploads\/2019\/10\/galvanizing.jpg 1000w, https:\/\/www.hbjinyong.com\/wp-content\/uploads\/2019\/10\/galvanizing-768x512.jpg 768w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/p>\n<p>Les gens ont essay\u00e9 de d\u00e9velopper des solutions pour r\u00e9aliser des \u00e9conomies \u00e0 long terme, et ils ont commenc\u00e9 \u00e0 rev\u00eatir l&#039;acier en le trempant dans du zinc fondu apr\u00e8s l&#039;avoir nettoy\u00e9. Ils ont utilis\u00e9 \u00ab<b>Galvanisation&#039; <\/b>pour d\u00e9crire l&#039;administration de chocs \u00e9lectriques au XIXe si\u00e8cle.<\/p>\n<p>Nous allons creuser profond\u00e9ment dans \u00ab<b>Galvanisation,&#039;<\/b> mais n&#039;h\u00e9sitez pas \u00e0 acc\u00e9der directement \u00e0 la section qui vous int\u00e9resse :<\/p>\n<ul>\n<li><a href=\"#step1\">Chapitre 1 : Qu&#039;est-ce que la galvanisation ?<\/a><\/li>\n<li><a href=\"#step2\">Chapitre 2 : Comment la galvanisation prot\u00e8ge-t-elle l\u2019acier de la rouille ?<\/a><\/li>\n<li><a href=\"#step6\">Chapitre 3 : Quels sont les types de galvanisation ?<\/a><\/li>\n<li><a href=\"#step7\">Chapitre 4 : Pourquoi choisir la galvanisation \u00e0 chaud ?<\/a><\/li>\n<li><a href=\"#step3\">Chapitre 5 : Proc\u00e9d\u00e9 de galvanisation \u00e0 chaud<\/a><\/li>\n<li><a href=\"#step8\">Chapitre 6 : Combien co\u00fbte la galvanisation \u00e0 chaud ?<\/a><\/li>\n<li><a href=\"#step4\">Chapitre 7 : 6 conseils avant la galvanisation \u00e0 chaud<\/a><\/li>\n<li><a href=\"#step5\">Chapitre 8 : Sp\u00e9cification de l&#039;acier galvanis\u00e9 \u00e0 chaud<\/a><\/li>\n<\/ul>\n<h2 id=\"step1\"><strong>Qu&#039;est-ce que la galvanisation ?<\/strong><\/h2>\n<p>La galvanisation est \u00e9galement appel\u00e9e galvanisation (parfois appel\u00e9e galvanisation ou galvanisation). Il s&#039;agit d&#039;un processus consistant \u00e0 appliquer un rev\u00eatement de zinc sur la surface du m\u00e9tal.<\/p>\n<p>La galvanisation peut r\u00e9duire les co\u00fbts de maintenance et constitue l\u2019une des solutions les plus efficaces, pratiques et \u00e9conomiques pour prot\u00e9ger le m\u00e9tal contre la corrosion.<\/p>\n<h2 id=\"step2\">Comment la galvanisation prot\u00e8ge-t-elle l\u2019acier de la rouille ?<\/h2>\n<p>La galvanisation prot\u00e8ge les produits de 2 fa\u00e7ons.<\/p>\n<p>La galvanisation cr\u00e9e un rev\u00eatement de zinc qui prot\u00e8ge le m\u00e9tal de l&#039;environnement. Le rev\u00eatement de zinc peut emp\u00eacher l&#039;eau et d&#039;autres \u00e9l\u00e9ments pr\u00e9sents dans l&#039;air de corroder l&#039;acier situ\u00e9 en dessous.\u00a0<\/p>\n<p><img decoding=\"async\" class=\"aligncenter size-full wp-image-3125\" src=\"https:\/\/www.hbjinyong.com\/wp-content\/uploads\/2019\/10\/Galvanic-Corrosion-Terminology.png\" alt=\"Corrosion galvanique\" width=\"585\" height=\"299\" \/><\/p>\n<p>La galvanisation prot\u00e8ge \u00e9galement les produits m\u00e9talliques par \u00ab corrosion galvanique \u00bb. Le rev\u00eatement en zinc a une affinit\u00e9 avec le contact de l&#039;anode avec de nombreux autres types de m\u00e9taux, ce qui ralentit la corrosion des produits ou de la cathode.<\/p>\n<h2 id=\"step6\">Quels sont les types de galvanisation ?<\/h2>\n<p>Il existe principalement quatre processus diff\u00e9rents que les entreprises utilisent pour galvaniser le m\u00e9tal : la pr\u00e9-galvanisation, la galvanisation \u00e0 chaud (HDG), la galvanisation \u00e0 froid et la galvanisation \u00e9lectrique.<\/p>\n<p><a href=\"https:\/\/www.hbjinyong.com\/wp-content\/uploads\/2019\/10\/pre-galvanized-steel-pipe.jpg\"><img decoding=\"async\" class=\"alignleft wp-image-4221\" src=\"https:\/\/www.hbjinyong.com\/wp-content\/uploads\/2019\/10\/pre-galvanized-steel-pipe-150x150.jpg\" alt=\"tube en acier pr\u00e9-galvanis\u00e9\" width=\"200\" height=\"150\" \/><\/a><\/p>\n<p>La pr\u00e9-galvanisation est \u00e9galement appel\u00e9e galvanisation en usine, cela signifie que le m\u00e9tal est galvanis\u00e9 sous forme de feuille avant la d\u00e9coupe et le traitement ult\u00e9rieur. La pr\u00e9-galvanisation met l&#039;accent sur le moment o\u00f9 le m\u00e9tal est galvanis\u00e9, c&#039;est le seul type qui est galvanis\u00e9 avant la fabrication.<\/p>\n<p><a href=\"https:\/\/www.hbjinyong.com\/wp-content\/uploads\/2019\/10\/hot-dipped-galvanized-metal.jpg\"><img decoding=\"async\" class=\"wp-image-4225 alignright\" src=\"https:\/\/www.hbjinyong.com\/wp-content\/uploads\/2019\/10\/hot-dipped-galvanized-metal.jpg\" alt=\"m\u00e9tal galvanis\u00e9 \u00e0 chaud\" width=\"200\" height=\"150\" \/><\/a><\/p>\n<p>\u00a0<\/p>\n<p>La galvanisation \u00e0 chaud est l&#039;application d&#039;un rev\u00eatement de zinc en trempant des articles m\u00e9talliques nettoy\u00e9s et pr\u00e9par\u00e9s dans du zinc fondu, proc\u00e9d\u00e9 par lequel des couches d&#039;alliage peuvent \u00eatre form\u00e9es entre le m\u00e9tal primaire et la couche ext\u00e9rieure de zinc pur.<\/p>\n<p><a href=\"https:\/\/www.hbjinyong.com\/wp-content\/uploads\/2019\/10\/Cold-Galvanizing-Spray-Zinc-Rich-Paint.jpg\"><img decoding=\"async\" class=\"alignleft wp-image-4227\" src=\"https:\/\/www.hbjinyong.com\/wp-content\/uploads\/2019\/10\/Cold-Galvanizing-Spray-Zinc-Rich-Paint.jpg\" alt=\"Spray de galvanisation \u00e0 froid, peinture riche en zinc\" width=\"200\" height=\"150\" \/><\/a><\/p>\n<p>La galvanisation \u00e0 froid est un v\u00e9ritable processus de peinture ou de pulv\u00e9risation qui recouvre la surface d&#039;un m\u00e9tal avec des peintures riches en zinc.<\/p>\n<p>\u00a0<\/p>\n<p><a href=\"https:\/\/www.hbjinyong.com\/wp-content\/uploads\/2019\/10\/electro-galvanizing-line.jpg\"><img decoding=\"async\" class=\"alignright wp-image-4229\" src=\"https:\/\/www.hbjinyong.com\/wp-content\/uploads\/2019\/10\/electro-galvanizing-line.jpg\" alt=\"galvanisation \u00e9lectrolytique\" width=\"200\" height=\"150\" \/><\/a><\/p>\n<p>La galvanisation \u00e9lectrique est un proc\u00e9d\u00e9 impliquant la galvanoplastie, qui consiste \u00e0 faire passer un courant \u00e9lectrique \u00e0 travers une solution saline\/zinc avec une anode en zinc et un conducteur en acier.<\/p>\n<p>\u00a0<\/p>\n<h2 id=\"step7\">Pourquoi les gens choisissent-ils la galvanisation \u00e0 chaud ?<\/h2>\n<p>La galvanisation \u00e0 chaud s&#039;est av\u00e9r\u00e9e sup\u00e9rieure \u00e0 de nombreux \u00e9gards aux autres m\u00e9thodes de galvanisation en raison du processus d&#039;application individuel. Les avantages sont \u00e9num\u00e9r\u00e9s ci-dessous :<\/p>\n<h3><strong>Faible co\u00fbt <\/strong><\/h3>\n<p>Le co\u00fbt comprend deux parties principales : le co\u00fbt initial et le co\u00fbt sur la dur\u00e9e de vie.<\/p>\n<p>La galvanisation \u00e0 chaud est un processus de fabrication hautement m\u00e9canis\u00e9, qui n\u00e9cessite moins de main-d&#039;\u0153uvre et de temps par rapport \u00e0 la peinture galvanis\u00e9e \u00e0 froid.<\/p>\n<p>Un entretien minimal pour une longue dur\u00e9e de vie rend les produits galvanis\u00e9s \u00e0 chaud moins co\u00fbteux par rapport \u00e0 l&#039;acier \u00e9lectrozingu\u00e9 et pr\u00e9-galvanis\u00e9.<\/p>\n<h3>Protection compl\u00e8te<\/h3>\n<p>La galvanisation \u00e0 chaud est un proc\u00e9d\u00e9 qui consiste \u00e0 immerger les produits m\u00e9talliques dans un bain de zinc apr\u00e8s leur fabrication, comme la d\u00e9coupe, le forgeage et le soudage. Elle g\u00e9n\u00e8re ainsi une couverture solide, durable et permanente sur chaque pi\u00e8ce, m\u00eame les coins inaccessibles, ce qui est bien meilleur que les autres m\u00e9thodes de galvanisation.<\/p>\n<h3><strong>Facilit\u00e9 d&#039;inspection<\/strong><\/h3>\n<p><img decoding=\"async\" class=\"aligncenter size-full wp-image-3051\" src=\"https:\/\/www.hbjinyong.com\/wp-content\/uploads\/2019\/10\/Galvanizing-Thickness-Measurement-1.jpg\" alt=\"Mesure de l&#039;\u00e9paisseur de galvanisation du support sup\u00e9rieur du poteau\" width=\"600\" height=\"600\" \/><\/p>\n<p class=\"src\" data-group=\"1-1\">Pour les produits galvanis\u00e9s \u00e0 chaud, il y a deux aspects principaux que vous devez inspecter apr\u00e8s la galvanisation, la douceur et l&#039;\u00e9paisseur du rev\u00eatement de zinc.<\/p>\n<p>La qualit\u00e9 de la couche de zinc est facilement \u00e9valu\u00e9e \u00e0 l&#039;\u0153il nu et l&#039;\u00e9paisseur est facile \u00e0 tester avec des jauges d&#039;\u00e9paisseur magn\u00e9tiques conform\u00e9ment \u00e0 la norme ISO1461 et aux exigences des clients. Vous pouvez v\u00e9rifier la <a href=\"#step5\">norme d\u00e9taill\u00e9e de l&#039;acier galvanis\u00e9 \u00e0 chaud<\/a> ci-dessous.<\/p>\n<h2 id=\"step3\">Proc\u00e9d\u00e9 de galvanisation \u00e0 chaud<\/h2>\n<p>Voici un sch\u00e9ma d\u00e9crivant le processus.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter size-full wp-image-3117\" src=\"https:\/\/www.hbjinyong.com\/wp-content\/uploads\/2019\/10\/Galvanizing-Process.png\" alt=\"\" width=\"775\" height=\"256\" srcset=\"https:\/\/www.hbjinyong.com\/wp-content\/uploads\/2019\/10\/Galvanizing-Process.png 775w, https:\/\/www.hbjinyong.com\/wp-content\/uploads\/2019\/10\/Galvanizing-Process-768x254.png 768w\" sizes=\"(max-width: 775px) 100vw, 775px\" \/><\/p>\n<p>Vous pouvez \u00e9galement voir la vid\u00e9o ci-dessous.<\/p>\n<p><iframe title=\"Galvanisation \u00e0 chaud - Proc\u00e9d\u00e9 de trempage... en action\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/Az87Q0JedG4?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\n<h2 id=\"step8\">Combien co\u00fbte la galvanisation \u00e0 chaud ?<\/h2>\n<p><span data-preserver-spaces=\"true\">Le prix du zingage est principalement affect\u00e9 par les aspects suivants<\/span><\/p>\n<h3 class=\"input\">L&#039;emplacement des usines<\/h3>\n<p><span data-preserver-spaces=\"true\">Les prix varient consid\u00e9rablement d&#039;un pays \u00e0 l&#039;autre, prenons nos produits comme exemple. Bien que le prix de la galvanisation continue d&#039;augmenter, le prix en Chine est d&#039;environ 400 \u00e0 500 dollars am\u00e9ricains la tonne en 2020, ce qui est encore bien inf\u00e9rieur \u00e0 celui de l&#039;Occident.<\/span><\/p>\n<h3><span data-preserver-spaces=\"true\">Le prix du zinc<\/span><\/h3>\n<p><span data-preserver-spaces=\"true\">Le zinc est le principal consommable dans le processus de galvanisation et son prix affecte directement le prix de la galvanisation.<\/span><\/p>\n<h3><span data-preserver-spaces=\"true\">Forme et taille de l&#039;acier<\/span><\/h3>\n<p><span data-preserver-spaces=\"true\">Les co\u00fbts sont d\u00e9termin\u00e9s par la facilit\u00e9 de manipulation gr\u00e2ce au processus de galvanisation, plus c&#039;est facile, moins c&#039;est cher.<\/span><\/p>\n<h3><span data-preserver-spaces=\"true\">Galvanis\u00e9 standard<\/span><\/h3>\n<p><span data-preserver-spaces=\"true\">Plus la finition de surface de la couche de zinc est bonne, plus le rev\u00eatement est \u00e9pais, plus le prix est \u00e9lev\u00e9.<\/span><\/p>\n<h2 id=\"step4\">6 choses \u00e0 savoir avant la galvanisation \u00e0 chaud.<\/h2>\n<h3>Norme de galvanisation<\/h3>\n<p>Les normes de galvanisation ne sont pas les m\u00eames sur un march\u00e9 diff\u00e9rent, prenez la r\u00e8gle de\u00a0 <a href=\"\/fr\/pole-line-hardware\/\" target=\"_blank\" rel=\"noopener noreferrer\">quincaillerie de poteau<\/a> que certains de nos clients demandent par exemple :<\/p>\n<p>Tous les produits sont galvanis\u00e9s selon la norme BS 729 ou ASTM A123.<\/p>\n<p>En plus de la norme BS 729 ou ASTM A123, toute galvanisation r\u00e9pond aux conditions \u00e9nonc\u00e9es ci-dessous.<\/p>\n<ul>\n<li>La galvanisation \u00e0 chaud est appliqu\u00e9e \u00e0 tous les produits tels que l&#039;acier de construction, les fabrications en acier de construction et en t\u00f4le, les assemblages de tubes, les boulons, les \u00e9crous, les vis et autres petits articles transform\u00e9s en vrac, les pi\u00e8ces moul\u00e9es en acier, les pi\u00e8ces forg\u00e9es en acier, les pi\u00e8ces embouties en acier, les pi\u00e8ces moul\u00e9es en fer et les produits similaires.<\/li>\n<li>La galvanisation \u00e0 chaud est appliqu\u00e9e \u00e0 des produits tels que des fils, des t\u00f4les d&#039;acier ou des tubes, qui seront ensuite transform\u00e9s en articles finis.<\/li>\n<\/ul>\n<h3>Couleur<\/h3>\n<p>Dans certaines circonstances, l&#039;ensemble du rev\u00eatement peut \u00eatre constitu\u00e9 de couches d&#039;alliage et, dans de tels cas, l&#039;apparence peut \u00eatre d&#039;un gris terne.<\/p>\n<h3>Mat\u00e9riel<\/h3>\n<p>L&#039;acier doux, l&#039;acier faiblement alli\u00e9 et la fonte sont des m\u00e9taux particuli\u00e8rement adapt\u00e9s \u00e0 la galvanisation \u00e0 chaud, mais d&#039;autres m\u00e9taux ferreux peuvent \u00e9galement \u00eatre galvanis\u00e9s \u00e0 chaud. Le fabricant s&#039;assure que les articles \u00e0 galvaniser sont constitu\u00e9s de minerai adapt\u00e9 \u00e0 la galvanisation.<\/p>\n<h3>Les tensions internes<\/h3>\n<p>Le fabricant veille \u00e0 ce que les contraintes internes du mat\u00e9riau, provoqu\u00e9es par des traitements tels que le travail \u00e0 froid, le pliage, le soudage, etc., soient rel\u00e2ch\u00e9es comme il se doit avant de le soumettre \u00e0 la galvanisation \u00e0 chaud. Ces contraintes peuvent entra\u00eener une fragilisation ou des fissures intercristallines apr\u00e8s la galvanisation.<\/p>\n<h3>D\u00e9capage<\/h3>\n<p><img decoding=\"async\" class=\"aligncenter size-full wp-image-3123\" src=\"https:\/\/www.hbjinyong.com\/wp-content\/uploads\/2019\/10\/Pickling-before-Galvanizing.jpg\" alt=\"D\u00e9capage avant galvanisation\" width=\"1000\" height=\"667\" srcset=\"https:\/\/www.hbjinyong.com\/wp-content\/uploads\/2019\/10\/Pickling-before-Galvanizing.jpg 1000w, https:\/\/www.hbjinyong.com\/wp-content\/uploads\/2019\/10\/Pickling-before-Galvanizing-768x512.jpg 768w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/p>\n<p>Les contaminants de surface qui ne peuvent pas \u00eatre \u00e9limin\u00e9s par d\u00e9capage, tels que l&#039;huile, la graisse, le goudron, la peinture, les scories de soudage et les impuret\u00e9s similaires, sont \u00e9limin\u00e9s avant le d\u00e9capage.<\/p>\n<p>Les crevasses et les trous d&#039;\u00e9pingle sont \u00e9vit\u00e9s dans les soudures car ils retiennent l&#039;acide de d\u00e9capage et entra\u00eenent une corrosion pr\u00e9matur\u00e9e du rev\u00eatement de zinc.<\/p>\n<p>Les articles ne doivent pas \u00eatre galvanis\u00e9s si leur conception et leur forme sont telles que la solution de d\u00e9capage ne peut pas \u00eatre \u00e9limin\u00e9e avec certitude ou si une ventilation ou un drainage ad\u00e9quat n&#039;est pas possible pour assurer une galvanisation s\u00fbre et efficace. S&#039;il est n\u00e9cessaire de percer des trous de drainage ou d&#039;a\u00e9ration dans les articles, le fournisseur doit obtenir le consentement du client.<\/p>\n<h3>Bain de galvanisation \u00e0 chaud<\/h3>\n<p><img decoding=\"async\" class=\"aligncenter size-full wp-image-3120\" src=\"https:\/\/www.hbjinyong.com\/wp-content\/uploads\/2019\/10\/Hot-Dip-Galvanizing-Bath.jpg\" alt=\"\" width=\"1000\" height=\"668\" srcset=\"https:\/\/www.hbjinyong.com\/wp-content\/uploads\/2019\/10\/Hot-Dip-Galvanizing-Bath.jpg 1000w, https:\/\/www.hbjinyong.com\/wp-content\/uploads\/2019\/10\/Hot-Dip-Galvanizing-Bath-768x513.jpg 768w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/p>\n<p>Le zinc du bain de galvanisation \u00e0 chaud contient au moins 98,5 % de zinc (en masse), conform\u00e9ment \u00e0 la norme ISO 752. Aucune impuret\u00e9 ou additif de zinc, qui pourrait avoir un effet n\u00e9faste sur la durabilit\u00e9 du rev\u00eatement de zinc, n&#039;est acceptable.<\/p>\n<h2 id=\"step5\">Sp\u00e9cification de l&#039;acier galvanis\u00e9 \u00e0 chaud<\/h2>\n<p><strong>Rev\u00eatement Aspect fini<\/strong><\/p>\n<p><strong><img decoding=\"async\" class=\"aligncenter size-full wp-image-3080\" src=\"https:\/\/www.hbjinyong.com\/wp-content\/uploads\/2019\/10\/Packing-3.jpg\" alt=\"\" width=\"1280\" height=\"960\" srcset=\"https:\/\/www.hbjinyong.com\/wp-content\/uploads\/2019\/10\/Packing-3.jpg 1280w, https:\/\/www.hbjinyong.com\/wp-content\/uploads\/2019\/10\/Packing-3-768x576.jpg 768w\" sizes=\"(max-width: 1280px) 100vw, 1280px\" \/><\/strong><\/p>\n<p>Le rev\u00eatement galvanis\u00e9 est lisse, continu, uniforme et exempt de tout \u00e9l\u00e9ment nuisible \u00e0 l&#039;utilisation pr\u00e9vue de l&#039;article rev\u00eatu. Il est exempt de taches d&#039;acide et de flux et ne pr\u00e9sente ni tartre ni cloques. Le rev\u00eatement ne peut pas \u00eatre retir\u00e9 par une manipulation ou un emballage normal.<\/p>\n<p>Une surface brillante, d&#039;aspect gris terne ou paillet\u00e9e est g\u00e9n\u00e9ralement acceptable. Une tache importante due \u00e0 l&#039;humidit\u00e9 (rouille blanche) est inacceptable.<\/p>\n<p><a href=\"\/fr\/galvanized-thickness-test-according-to-iso1461\/\" target=\"_blank\" rel=\"noopener noreferrer\"><em><strong>\u00c9paisseur du rev\u00eatement <\/strong><\/em><\/a><\/p>\n<p><img decoding=\"async\" class=\"aligncenter size-full wp-image-3082\" src=\"https:\/\/www.hbjinyong.com\/wp-content\/uploads\/2019\/10\/Sample-testing-1.jpg\" alt=\"\" width=\"564\" height=\"560\" srcset=\"https:\/\/www.hbjinyong.com\/wp-content\/uploads\/2019\/10\/Sample-testing-1.jpg 564w, https:\/\/www.hbjinyong.com\/wp-content\/uploads\/2019\/10\/Sample-testing-1-150x150.jpg 150w, https:\/\/www.hbjinyong.com\/wp-content\/uploads\/2019\/10\/Sample-testing-1-66x66.jpg 66w\" sizes=\"(max-width: 564px) 100vw, 564px\" \/><\/p>\n<p>Pour l&#039;un de nos clients, <a href=\"\/fr\/galvanized-thickness-test-according-to-iso1461\/\" target=\"_blank\" rel=\"noopener noreferrer\">l&#039;\u00e9paisseur du rev\u00eatement de galvanisation<\/a> est conforme aux valeurs moyennes minimales indiqu\u00e9es dans le tableau ci-dessous lorsqu&#039;il est test\u00e9 conform\u00e9ment aux exigences \u00e9nonc\u00e9es ci-dessous :<\/p>\n<table>\n<tbody>\n<tr>\n<td width=\"299\">\n<p><strong>Description de l&#039;article<\/strong><\/p>\n<\/td>\n<td width=\"128\">\n<p><strong>Masse minimale de zinc d\u00e9pos\u00e9e (g\/mm\u00b2)<\/strong><\/p>\n<\/td>\n<td width=\"125\">\n<p><strong>\u00c9paisseur moyenne minimale du rev\u00eatement (um)*<\/strong><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"299\">\n<p>Articles en acier, \u00e9paisseur 5 mm et plus<\/p>\n<p>Articles en acier d&#039;une \u00e9paisseur comprise entre 2 et 5 mm<\/p>\n<p>Articles en acier de moins de 2 mm d&#039;\u00e9paisseur<\/p>\n<p>Articles en acier filet\u00e9s<\/p>\n<p>Coul\u00e9e de fer<\/p>\n<\/td>\n<td width=\"128\">\n<p><strong>610<\/strong><\/p>\n<p><strong>460<\/strong><\/p>\n<p><strong>335<\/strong><\/p>\n<p><strong>305<\/strong><\/p>\n<p><strong>610<\/strong><\/p>\n<\/td>\n<td width=\"125\">\n<p><strong>85<\/strong><\/p>\n<p><strong>65<\/strong><\/p>\n<p><strong>47<\/strong><\/p>\n<p><strong>43<\/strong><\/p>\n<p><strong>85<\/strong><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"text-align: center;\"><em>\u00c9paisseur du rev\u00eatement de galvanisation et masse de zinc\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/em>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/p>\n<ul>\n<li>les valeurs d&#039;\u00e9paisseur moyenne minimale donn\u00e9es dans ce tableau sont d\u00e9finies comme la plus basse des valeurs moyennes individuelles pour le nombre d&#039;\u00e9chantillons test\u00e9s.<\/li>\n<\/ul>\n<p><strong>Uniformit\u00e9 du rev\u00eatement<\/strong><\/p>\n<p>L&#039;uniformit\u00e9 du rev\u00eatement de galvanisation est telle que l&#039;\u00e9paisseur minimale appropri\u00e9e mesur\u00e9e sur tout \u00e9chantillon d&#039;essai ne soit pas sup\u00e9rieure \u00e0 7 \u00b5m en dessous du chiffre moyen minimum sp\u00e9cifi\u00e9 pour cet article dans le tableau ci-dessus.<\/p>\n<p><strong>Masse de rev\u00eatement <\/strong><\/p>\n<p>La masse du rev\u00eatement galvanis\u00e9 par m\u00e8tre carr\u00e9 de surface est conforme aux valeurs minimales donn\u00e9es par les clients lors des tests effectu\u00e9s conform\u00e9ment aux exigences.<\/p>\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe title=\"Test de masse du rev\u00eatement de zinc\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/H9YuxQRuz-w?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<p class=\"has-text-align-center\"><em>Essai de masse de rev\u00eatement<\/em><\/p>\n\n\n<h2>Questions fr\u00e9quemment pos\u00e9es (FAQ)&nbsp;<\/h2>\n\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1571447652593\"><strong class=\"schema-faq-question\">Qu&#039;est-ce que la galvanisation \u00e0 chaud ?<\/strong> <p class=\"schema-faq-answer\">La galvanisation \u00e0 chaud est l&#039;application d&#039;un rev\u00eatement de zinc en trempant des produits m\u00e9talliques nettoy\u00e9s et pr\u00e9par\u00e9s dans du zinc fondu, proc\u00e9d\u00e9 par lequel des couches d&#039;alliage peuvent \u00eatre form\u00e9es entre le m\u00e9tal de base et la couche ext\u00e9rieure de zinc pur.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1571447717218\"><strong class=\"schema-faq-question\">Combien de types de galvanisation ?<\/strong> <p class=\"schema-faq-answer\">Il existe principalement quatre proc\u00e9d\u00e9s diff\u00e9rents que les entreprises utilisent pour galvaniser le m\u00e9tal :<br\/>Pr\u00e9 galvanisation<br\/>Galvanisation \u00e0 chaud (HDG)<br\/>Galvanisation \u00e0 froid<br\/>Galvanisation \u00e9lectrique.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1571469609684\"><strong class=\"schema-faq-question\">Comment la galvanisation \u00e0 chaud prot\u00e8ge-t-elle l\u2019acier de la rouille ?<\/strong> <p class=\"schema-faq-answer\">La galvanisation prot\u00e8ge les produits de 2 fa\u00e7ons.<br\/>La galvanisation cr\u00e9e un rev\u00eatement de zinc qui prot\u00e8ge le m\u00e9tal de l&#039;environnement. Le rev\u00eatement de zinc peut emp\u00eacher l&#039;eau et d&#039;autres \u00e9l\u00e9ments pr\u00e9sents dans l&#039;air de corroder l&#039;acier situ\u00e9 en dessous.<br\/>La galvanisation prot\u00e8ge \u00e9galement les produits m\u00e9talliques par \u00ab corrosion galvanique \u00bb. Le rev\u00eatement en zinc a une affinit\u00e9 avec le contact de l&#039;anode avec de nombreux autres types de m\u00e9taux, ce qui ralentit la corrosion des produits ou de la cathode.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1586186533533\"><strong class=\"schema-faq-question\">Pourquoi choisir la galvanisation \u00e0 chaud ?<\/strong> <p class=\"schema-faq-answer\">La galvanisation \u00e0 chaud s&#039;est av\u00e9r\u00e9e sup\u00e9rieure \u00e0 de nombreux \u00e9gards aux autres m\u00e9thodes de galvanisation en raison du processus d&#039;application sp\u00e9cial :<br\/>Co\u00fbt inf\u00e9rieur<br\/>Moins d&#039;entretien<br\/>Dur\u00e9e de vie plus longue<br\/>Processus rapide<br\/>Efficacit\u00e9 des ressources<br\/>Facilit\u00e9 d&#039;inspection.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1586228540235\"><strong class=\"schema-faq-question\">Combien co\u00fbte la galvanisation \u00e0 chaud ?<\/strong> <p class=\"schema-faq-answer\">Le prix du zingage est principalement affect\u00e9 par les aspects suivants :<br\/>L&#039;emplacement des usines. Les prix varient consid\u00e9rablement d&#039;un pays \u00e0 l&#039;autre, prenons nos produits comme exemple. Bien que le prix de la galvanisation continue d&#039;augmenter, le prix en Chine est d&#039;environ 400 \u00e0 500 dollars am\u00e9ricains la tonne en 2020, ce qui est encore bien inf\u00e9rieur \u00e0 celui de l&#039;Occident.<br\/>Le prix du zinc. Le zinc est le principal consommable du processus de galvanisation et son prix affecte directement le prix de la galvanisation.<br\/>Forme et taille de l&#039;acier. Les co\u00fbts sont d\u00e9termin\u00e9s par la facilit\u00e9 de manipulation gr\u00e2ce au processus de galvanisation, plus c&#039;est facile, moins c&#039;est cher.<br\/>Galvanisation standard. Plus la finition de surface de la couche de zinc est bonne, plus le rev\u00eatement est \u00e9pais, plus le prix est \u00e9lev\u00e9.<\/p> <\/div> <\/div>","protected":false},"excerpt":{"rendered":"<p>L&#039;acier est un mat\u00e9riau pr\u00e9cieux largement utilis\u00e9 dans les secteurs de la construction et de l&#039;ing\u00e9nierie. L&#039;acier est durable, polyvalent et peu co\u00fbteux, mais il est sujet \u00e0 la corrosion, en particulier dans les environnements ext\u00e9rieurs. Les gens ont essay\u00e9 de d\u00e9velopper des solutions pour r\u00e9aliser des \u00e9conomies \u00e0 long terme et ont commenc\u00e9 \u00e0 rev\u00eatir l&#039;acier en le trempant dans du zinc fondu apr\u00e8s l&#039;avoir nettoy\u00e9. Ils ont utilis\u00e9 la \u00ab galvanisation \u00bb [\u2026]<\/p>","protected":false},"author":1,"featured_media":3116,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"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":[4],"tags":[],"class_list":["post-3113","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - 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