{"id":5636,"date":"2020-02-21T04:18:29","date_gmt":"2020-02-21T04:18:29","guid":{"rendered":"https:\/\/www.kaysuns.com\/?p=5636"},"modified":"2026-03-25T03:44:42","modified_gmt":"2026-03-25T03:44:42","slug":"procedes-et-etapes-de-decapage-et-de-passivation-des-tubes-sans-soudure-en-acier-inoxydable","status":"publish","type":"blog","link":"https:\/\/www.kaysuns.com\/fr\/blog\/procedes-et-etapes-de-decapage-et-de-passivation-des-tubes-sans-soudure-en-acier-inoxydable\/","title":{"rendered":"Processus et \u00e9tapes de d\u00e9capage et de passivation de tuyaux sans soudure en acier inoxydable"},"content":{"rendered":"

Processus et \u00e9tapes de d\u00e9capage et de passivation de tubes sans soudure en acier inoxydable<\/h2>\n

Tout le monde sait que l'usine de tubes en acier sans soudure doit \u00eatre d\u00e9cap\u00e9e et passiv\u00e9e apr\u00e8s la production pour devenir un tuyau en acier inoxydable sans soudure<\/a>.<\/p>\n

Que savez-vous du processus et des \u00e9tapes de la d\u00e9capage et passivation<\/a> de tubes en acier inoxydable sans soudure ? Nous y parviendrons.<\/p>\n

\"tuyaux<\/a>
tuyaux en acier inoxydable sans soudure<\/figcaption><\/figure>\n

1, pr\u00e9paratifs<\/strong><\/p>\n

2, d\u00e9graissage chimique :<\/strong><\/p>\n

(1) Le d\u00e9graissage chimique adopte la m\u00e9thode de trempage dans le r\u00e9servoir. Le r\u00e9servoir de d\u00e9graissage est en t\u00f4le d'acier et la paroi int\u00e9rieure est recouverte de PVC ou de poly\u00e9thyl\u00e8ne.<\/p>\n

(2) Utilisez de l'acide nitrique 12 ~ 15% (en volume) pour arr\u00eater le traitement de d\u00e9graissage chimique. La temp\u00e9rature est de 40 \u00b0 C ~ 60 \u00b0 C et le temps est de 2 ~ 4 heures.<\/p>\n

(3) Lorsque le tuyau sans soudure en acier inoxydable est tremp\u00e9 dans le r\u00e9servoir, faites attention \u00e0 l'endroit pour l'emp\u00eacher de pi\u00e9ger de l'air dans le tuyau.<\/p>\n

(4) Pendant le processus de trempage, le tuyau sans soudure en acier inoxydable doit \u00eatre d\u00e9plac\u00e9 de haut en bas, \u00e0 l'envers ou \u00e0 l'envers, de sorte que la solution de la cavit\u00e9 interne soit modifi\u00e9e de temps en temps pour am\u00e9liorer l'effet. Sortir le tube inox sans soudure si n\u00e9cessaire, rincer \u00e0 l'eau puis arr\u00eater le trempage.<\/p>\n

(5) D\u00e9graissage chimique jusqu'\u00e0 ce que la surface du tuyau sans soudure en acier inoxydable soit compl\u00e8tement humide.<\/p>\n

3, rin\u00e7age \u00e0 l'eau chaude\u00a0:<\/strong><\/p>\n

(1) Le tuyau sans soudure en acier inoxydable apr\u00e8s d\u00e9graissage est sorti du bac de d\u00e9graissage, et plong\u00e9 dans un ballon d'eau chaude \u00e0 environ 40 \u00b0C \u00e0 60 \u00b0C pour un rin\u00e7age pendant 5 \u00e0 20 minutes.<\/p>\n

(2) Le r\u00e9servoir d'eau chaude est en t\u00f4le d'acier et la paroi int\u00e9rieure est recouverte de PVC ou de poly\u00e9thyl\u00e8ne.<\/p>\n

(3) La teneur en ions chlorure dans l'eau est inf\u00e9rieure \u00e0 25 ppm.<\/p>\n

4, rin\u00e7age \u00e0 l'eau froide\u00a0:<\/strong><\/p>\n

(1), le tuyau sans soudure en acier inoxydable qui a \u00e9t\u00e9 rinc\u00e9 \u00e0 l'eau est arr\u00eat\u00e9 avec de l'eau sous pression (pression P\u22650.1Mpa).<\/p>\n

(2) La teneur en ions chlorure dans l'eau est inf\u00e9rieure \u00e0 25 ppm.<\/p>\n

5, passivation\u00a0:<\/strong><\/p>\n

(1) La passivation adopte la m\u00e9thode de bulle de r\u00e9servoir dans le r\u00e9servoir. La formule de la solution de passivation et le temps d'immersion peuvent \u00eatre s\u00e9lectionn\u00e9s selon le tableau 2.3.<\/p>\n

(2) Fabrication de plaques d'acier pour r\u00e9servoir de passivation, la paroi int\u00e9rieure est recouverte de plastique r\u00e9sistant aux acides.<\/p>\n

(3) Lors de l'immersion dans le r\u00e9servoir, faites attention \u00e0 l'endroit pour \u00e9viter que l'air ne soit stock\u00e9 dans le tuyau soud\u00e9 en acier inoxydable.<\/p>\n

(4) Pendant le processus de trempage, le tuyau sans soudure en acier inoxydable doit \u00eatre d\u00e9plac\u00e9 de haut en bas, \u00e0 l'envers ou \u00e0 l'envers, de sorte que la solution de la cavit\u00e9 interne soit modifi\u00e9e de temps en temps pour am\u00e9liorer l'effet. Sortir le tube inox sans soudure si n\u00e9cessaire, rincer \u00e0 l'eau puis arr\u00eater le trempage.<\/p>\n

6. S\u00e9chage :<\/strong><\/p>\n

Les tuyaux sans soudure en acier inoxydable passiv\u00e9s doivent \u00eatre s\u00e9ch\u00e9s avec de l'air comprim\u00e9 propre ou de l'azote, et il doit y avoir suffisamment de temps (au moins 2 heures) pour que les tuyaux sans soudure en acier inoxydable se passivent naturellement dans l'air.<\/p>\n

7. Contr\u00f4le\u00a0:<\/strong><\/p>\n

Apr\u00e8s passivation du tuyau sans soudure en acier inoxydable, l'auto-test et l'inspection mutuelle doivent \u00eatre arr\u00eat\u00e9s, puis soumis \u00e0 l'inspecteur qualit\u00e9 pour arr\u00eater l'acceptation sur demande.<\/p>\n

8. Entretien\u00a0:<\/strong><\/p>\n

(1) Si le tuyau sans soudure en acier inoxydable dont l'apparence doit \u00eatre arr\u00eat\u00e9e est arr\u00eat\u00e9, il sera arr\u00eat\u00e9 en fonction de la demande de peinture.<\/p>\n

(2) Tubes sans soudure en acier inoxydable apr\u00e8s inspection. Les fabricants de tuyaux sans soudure en acier inoxydable doivent sceller avec des bouchons en plastique, arr\u00eater le cerclage et l'entretien avec un chiffon \u00e0 trois \u00e9preuves et arr\u00eater le marquage.<\/p>\n

\n

Un autre article sur le d\u00e9capage et la passivation des tuyaux en acier sans soudure :\u00a0Il existe g\u00e9n\u00e9ralement trois types de d\u00e9capage et de passivation de tuyaux sans soudure en acier inoxydable<\/a><\/p>","protected":false},"featured_media":5323,"template":"","categories":[186],"tags":[],"class_list":["post-5636","blog","type-blog","status-publish","has-post-thumbnail","hentry","category-stainless-steel-knowledge"],"yoast_head":"\nProcesses And Steps Of Pickling And Passivation Of Stainless Steel Seamless Pipe - Stainless Steel Pipe and Fittings | KAYSUNS<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.kaysuns.com\/fr\/blog\/procedes-et-etapes-de-decapage-et-de-passivation-des-tubes-sans-soudure-en-acier-inoxydable\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Processes And Steps Of Pickling And Passivation Of Stainless Steel Seamless Pipe - Stainless Steel Pipe and Fittings | KAYSUNS\" \/>\n<meta property=\"og:description\" content=\"Processes and steps of pickling and passivation of stainless steel seamless pipe Everyone knows that the seamless steel pipe factory must be pickled and passivated after production in order to become a seamless stainless steel pipe. 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