{"id":48846,"date":"2025-02-20T08:08:58","date_gmt":"2025-02-20T08:08:58","guid":{"rendered":"https:\/\/www.kaysuns.com\/?p=48846"},"modified":"2025-09-19T05:33:15","modified_gmt":"2025-09-19T05:33:15","slug":"uns-n04400-precautions-et-instructions","status":"publish","type":"post","link":"https:\/\/www.kaysuns.com\/fr\/uns-n04400-precautions-et-instructions\/","title":{"rendered":"UNS N04400 Alloy Welded Pipe Pr\u00e9cautions de soudage et instructions de processus"},"content":{"rendered":"
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UNS N04400<\/strong>\u00e9galement appel\u00e9 monel 400, MCu-28-1,5-1,8 ou Ni68Cu28Fe.
Il s'agit d'un alliage \u00e0 base de nickel<\/a> mat\u00e9riau de bonne qualit\u00e9 r\u00e9sistance \u00e0 la corrosion<\/a> dans l'eau de mer, les solvants chimiques et divers milieux acides.
En particulier pour la r\u00e9sistance \u00e0 la corrosion par l'acide fluorhydrique, il se classe au premier rang des alliages g\u00e9n\u00e9raux \u00e0 base de nickel.
Les principaux composants<\/a> de Monel 400 sont NICKEL<\/strong> et CUIVRE<\/strong>.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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Pr\u00e9cautions de soudage pour N04400<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Le Monel 400 a de bonnes performances de soudage, il peut \u00eatre soud\u00e9 au TIG et au MIG, il peut \u00eatre soud\u00e9 \u00e0 l'aide d'un corps en Monel ou d'un fil, d'une \u00e9lectrode en EniCu-7. Il peut \u00e9galement \u00eatre soud\u00e9 \u00e0 l'arc \u00e9lectrique manuel et \u00e0 l'arc submerg\u00e9, et peut \u00eatre soud\u00e9 avec de l'acier au carbone et de l'acier faiblement alli\u00e9. Nous vous rappelons les deux points suivants.<\/p>

Facile \u00e0 produire des fissures thermiques, en particulier dans le puits d'arc, la sensibilit\u00e9 aux fissures est plus grande. Principalement dans le puits d'arc, la s\u00e9gr\u00e9gation S, P, S, P et Ni forme un co-cristal \u00e0 bas point de fusion. Dans le processus de cristallisation de la soudure, la s\u00e9gr\u00e9gation \u00e0 la limite du cristal, sous l'action de la contrainte de traction, produit des fissures. La teneur en S, P doit donc \u00eatre strictement contr\u00f4l\u00e9e.<\/p>

Le m\u00e9tal liquide est peu fluide et peut dissoudre des gaz tels que l'oxyg\u00e8ne, l'azote et l'hydrog\u00e8ne, ce qui le rend sujet \u00e0 la porosit\u00e9.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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\n\t\t\t\t\t\tCe que nous faisons\t\t\t\t\t<\/h2>\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t
\n\t\t\t\t\t\tKAYSUNS fournit des solutions globales pour les mat\u00e9riaux de tuyauterie tels que les tuyaux, les raccords, les brides, les vannes en acier inoxydable, en acier duplex et en acier alli\u00e9, etc. \t\t\t\t\t<\/div>\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t
\n\t\t\t\t\t\n\t\t\t\t\t\tNous contacter\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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N04400 Soudage Description<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Afin de tester les performances et le processus de soudage, nous prenons l'exemple d'un client pour r\u00e9aliser un guide de test de soudage.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Sp\u00e9cifications des plaques d'essai<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Deux plaques d'essai 10*300*100, angle de biseau de soudage de 37,5\u00b0, bord \u00e9mouss\u00e9 de 4 mm, utilisant un traitement \u00e0 la raboteuse. L'origine de la plaque d'essai est VDM, Allemagne.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Test du processus de soudage<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Le processus de soudage d'essai consiste d'abord \u00e0 biseauter, puis \u00e0 assembler la plaque d'essai et \u00e0 la souder par points, en y ajoutant les plaques d'entr\u00e9e et de sortie 304.
Ensuite, un nettoyage avant soudage est effectu\u00e9 pour pr\u00e9parer le soudage.
Le soudage est automatis\u00e9, utilisant le proc\u00e9d\u00e9 PAW pour l'appr\u00eat, suivi de trois passes de fil d'apport TIG et d'un soudage de couverture.
Une fois le soudage termin\u00e9, une inspection RT a \u00e9t\u00e9 effectu\u00e9e et des essais m\u00e9caniques ont \u00e9t\u00e9 r\u00e9alis\u00e9s.
En raison de la taille limit\u00e9e de la plaque d'essai, l'essai m\u00e9canique n'a pu r\u00e9aliser que l'essai de traction et l'essai de flexion avant et arri\u00e8re de la soudure.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Situation de soudage<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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L'op\u00e9rateur doit travailler de mani\u00e8re standardis\u00e9e et contr\u00f4ler correctement les param\u00e8tres de soudage. \u00c0 ce stade, la plaque soud\u00e9e pr\u00e9sente une bonne qualit\u00e9 de soudage et r\u00e9pond aux exigences de performance de l'alliage N04400.<\/p>

Utilisation petite chaleur<\/strong> afin de r\u00e9duire la probabilit\u00e9 de fissuration. Faibles sp\u00e9cifications de soudage<\/strong> (courant, tension, vitesse de soudage) afin de r\u00e9duire les risques de d\u00e9formation et les d\u00e9fauts de soudage. Contr\u00f4ler la temp\u00e9rature de l'intercalaire moins de 100\u2103<\/strong> pour r\u00e9duire l'influence du cycle thermique dans le processus de soudage.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\"N04400-P1\"\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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N04400 Proc\u00e9d\u00e9 de soudage<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\t\t\t\t\t\u2160, M\u00e9tal en fusion Composition chimique<\/strong> (%)\n\n\n\n\n\n\n
D\u00e9signation<\/th>\nDiam\u00e8tre (mm)<\/th>\nC<\/th>\nMn<\/th>\nSi<\/th>\nS<\/th>\nP<\/th>\nAl<\/th>\nFe<\/th>\nTi<\/th>\nCu<\/th>\nNi+Co<\/th>\nNi<\/th>\n<\/tr>\n<\/thead>\n
Fil de soudure<\/td>\n1.6<\/td>\n0.072<\/td>\n3.53<\/td>\n0.97<\/td>\n0.001<\/td>\n0.005<\/td>\n0.12<\/td>\n0.12<\/td>\n2.35<\/td>\nReste<\/td>\n65.11<\/td>\n\/<\/td>\n<\/tr>\n
Baguette de soudage<\/td>\n3.2<\/td>\n0.10<\/td>\n3.38<\/td>\n0.84<\/td>\n0.003<\/td>\n0.005<\/td>\n0.22<\/td>\n0,45\/td><\/td>\n0.74<\/td>\n29.52<\/td>\n\/<\/td>\n\n64.74<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\nNote : Fil de soudure ERNiCu-7 Monel-60. Baguette de soudure ENiCu-7 Monel-190.\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\u2161, Baguette de soudage 350\u2103\u00d71h s\u00e9chage ; fil attention au nettoyage de la surface.Normalement aucun pr\u00e9chauffage n'est n\u00e9cessaire. Pr\u00e9chauffer \u00e0 moins de 100\u00b0C si n\u00e9cessaire.<\/p>

\u2162, polarit\u00e9 de soudage \u00e0 l'arc pour connexion DC invers\u00e9e, TIG pour connexion DC positive, diam\u00e8tre de tungst\u00e8ne pour connexion positive, diam\u00e8tre de tungst\u00e8ne \u03c63mm, diam\u00e8tre de buse \u03c610mm, puret\u00e9 de l'argon 99,99%.<\/p>

\u2163, Meuler m\u00e9caniquement et frotter le biseau et son bord avec de l'ac\u00e9tone.<\/p>

V, forme du biseau et s\u00e9quence de soudage<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\"N04400-Forme\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\t\t\t\t\t\u2165, Param\u00e8tres de soudage\n\n\n\n\n\n\n\n
M\u00e9thode de soudage<\/th>\nNiveaux de soudage<\/th>\nCourant de soudage (A)<\/th>\nTension d'arc (V)<\/th>\nVitesse de soudage (cm\/min)<\/th>\n12<\/th>\nD\u00e9bit d'argon (L\/min)<\/th>\nTemp\u00e9rature entre les couches ( \u00b0C)<\/th>\n<\/tr>\n<\/thead>\n
TIG<\/td>\nSous-couche<\/td>\n70 ~ 120<\/td>\n14 ~ 18<\/td>\n10<\/td>\n10080<\/td>\n8 ~ 12<\/td>\n\/<\/td>\n<\/tr>\n
TIG<\/td>\nDeuxi\u00e8me<\/td>\n95 ~ 120<\/td>\n14 ~ 18<\/td>\n6<\/td>\n15400<\/td>\n8 ~ 12<\/td>\nMoins de 100<\/td>\n<\/tr>\n
Soudage \u00e0 l'arc manuel<\/td>\nCouche de couverture<\/td>\n110 ~ 120<\/td>\n22 ~ 24<\/td>\n7<\/td>\n20740<\/td>\n\/<\/td>\nMoins de 100<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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VIII. Le fil d'apport doit \u00eatre maintenu \u00e0 un angle appropri\u00e9 pour une alimentation rapide.<\/p>

\u2168, contr\u00f4ler la profondeur de fusion pendant l'application et maintenir le rapport de fusion en dessous de 50%. Utiliser \u00e9galement un courant faible.<\/p>

\u2169, les trajectoires de soudure \u00e9troites et plates sont les meilleures. Les pi\u00e8ces soud\u00e9es en hauteur doivent minimiser le volume du bain de fusion, afin de faciliter la mise en forme de la soudure. Lors de la fermeture de l'arc, veillez \u00e0 remplir le puits d'arc.<\/p>

\u216a, Utiliser le soudage \u00e0 l'arc court pour \u00e9viter l'absorption excessive de gaz nocifs pendant le processus de soudage.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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Vous voudrez peut-\u00eatre aussi lire :
L'art et la science du soudage de tuyaux<\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"

UNS N04400, \u00e9galement appel\u00e9 monel 400, MCu-28-1.5-1.8 ou Ni68Cu28Fe. Il s'agit d'un alliage \u00e0 base de nickel qui pr\u00e9sente une bonne r\u00e9sistance \u00e0 la corrosion dans l'eau de mer, les solvants chimiques et divers milieux acides, notamment en ce qui concerne la r\u00e9sistance \u00e0 la corrosion par l'acide fluorhydrique, ce qui le place au premier rang des alliages g\u00e9n\u00e9raux \u00e0 base de nickel. Pr\u00e9cautions de soudage pour N04400 Le Monel 400 a une bonne... Lire plus \"UNS N04400 Alloy Welded Pipe Pr\u00e9cautions de soudage et instructions de processus<\/span><\/a><\/p>","protected":false},"author":1,"featured_media":48894,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","neve_meta_reading_time":"","_ti_tpc_template_sync":false,"_ti_tpc_template_id":"","footnotes":""},"categories":[316,186],"tags":[],"class_list":["post-48846","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","category-stainless-steel-knowledge"],"yoast_head":"\nN04400 Welding Precautions And Process Instructions<\/title>\n<meta name=\"description\" content=\"UNS N04400 is a nickel-based alloy material with good welding performance. 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