{"id":46913,"date":"2024-06-25T09:29:39","date_gmt":"2024-06-25T09:29:39","guid":{"rendered":"https:\/\/www.kaysuns.com\/?post_type=blog&p=46913"},"modified":"2024-06-26T01:06:37","modified_gmt":"2024-06-26T01:06:37","slug":"coefficient-de-soudure-dans-lordre","status":"publish","type":"blog","link":"https:\/\/www.kaysuns.com\/fr\/blog\/coefficient-de-soudure-dans-lordre\/","title":{"rendered":"Coefficient de soudure dans l'ordre"},"content":{"rendered":"
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Coefficient de soudure dans l'ordre<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Dans les commandes de tubes soud\u00e9s en acier inoxydable, on trouve souvent des mots tels que \"Ej=1,0\" ou \"Ej=0,85\". Que repr\u00e9sentent-ils ? J'ai r\u00e9sum\u00e9 l'information bri\u00e8vement.<\/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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Ej est commun\u00e9ment appel\u00e9 \"coefficient du joint de soudure\", \u00e9galement commun\u00e9ment appel\u00e9 coefficient du joint de soudure. En fait, le coefficient du joint de soudure est un concept dans les produits pour appareils \u00e0 pression. Dans les appareils \u00e0 pression typiques, les joints de soudure sont g\u00e9n\u00e9ralement class\u00e9s en quatre cat\u00e9gories en fonction de leur position : A, B, C et D. Pour simplifier, A repr\u00e9sente la soudure longitudinale sur la coque et la t\u00eate, B repr\u00e9sente la soudure bout \u00e0 bout circonf\u00e9rentielle sur la coque, C repr\u00e9sente la soudure bout \u00e0 bout circonf\u00e9rentielle reli\u00e9e \u00e0 la bride et D repr\u00e9sente la soudure entre le tuyau de raccordement et la coque. Un sch\u00e9ma typique est le suivant :<\/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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Normes de classification des joints soud\u00e9s<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Les normes de classification et les instructions relatives aux joints soud\u00e9s sont d\u00e9taill\u00e9es dans la clause 4.5.1 de la norme GB150.1-2011 Pressure Vessels, tandis que la clause 4.5.2 sp\u00e9cifie le coefficient des joints soud\u00e9s. La premi\u00e8re phrase indique clairement que \"le coefficient des joints soud\u00e9s doit \u00eatre d\u00e9termin\u00e9 sur la base de la forme de la soudure et du rapport de longueur du contr\u00f4le non destructif de la soudure bout \u00e0 bout\". Cette phrase montre que \"la forme de la soudure et le rapport de longueur du contr\u00f4le non destructif du joint d'about\" d\u00e9terminent le \"coefficient du joint soud\u00e9\", ce qui constitue une relation logique tr\u00e8s importante. Voyons comment l'ASME r\u00e9glemente le coefficient des joints soud\u00e9s. Dans l'ouverture de l'article UW-12 du volume 8, partie 1 de l'ASME VIII. 1-2019 Rules for Construction of Pressure Vessels Division 1, il est \u00e9galement mentionn\u00e9 que \"l'efficacit\u00e9 d'un joint d\u00e9pend uniquement du type de joint et du contexte de l'examen du joint et ne d\u00e9pend pas de l'\u00e9tendue de l'examen de tout autre joint\". Cette logique est coh\u00e9rente avec les dispositions de la norme GB150.1.<\/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\"\"\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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Le r\u00f4le des joints soud\u00e9s<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Le r\u00f4le des joints soud\u00e9s dans les structures est principalement d\u00e9termin\u00e9 par leur position, et l'\u00e9tat de contrainte des soudures \u00e0 diff\u00e9rentes positions varie. Par cons\u00e9quent, la position devient le principal facteur \u00e0 prendre en compte pour d\u00e9terminer le r\u00f4le des joints soud\u00e9s. La capacit\u00e9 d'un joint soud\u00e9 \u00e0 jouer le r\u00f4le qui lui revient est d\u00e9termin\u00e9e par la qualit\u00e9 du joint soud\u00e9, et le processus d'obtention de la qualit\u00e9 de soudage sera influenc\u00e9 par des facteurs cong\u00e9nitaux tels que la \"difficult\u00e9 de mise en \u0153uvre du processus\". Parall\u00e8lement, il est \u00e9galement n\u00e9cessaire de prendre en compte les facteurs acquis, \u00e0 savoir que \"les indicateurs de qualit\u00e9 sont en contradiction avec les indicateurs \u00e9conomiques\". Bien entendu, tout ceci est bas\u00e9 sur la s\u00e9curit\u00e9 comme crit\u00e8re de base. Par cons\u00e9quent, dans la conception structurelle, l'adoption de diff\u00e9rents coefficients de joints de soudure est le r\u00e9sultat commun de l'int\u00e9gration et de l'\u00e9quilibrage de divers facteurs, et elle a une importance pratique significative.<\/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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En outre, bien que les diff\u00e9rents coefficients des joints de soudure correspondent \u00e0 diff\u00e9rents rapports de contr\u00f4le dans la forme, ils correspondent fondamentalement \u00e0 diff\u00e9rents niveaux de qualit\u00e9. D'une mani\u00e8re g\u00e9n\u00e9rale, le niveau de qualification des soudures de contr\u00f4le non destructif 100% est le niveau II, tandis que le niveau de qualification des soudures de contr\u00f4le non destructif 20% est le niveau III. Les diff\u00e9rents niveaux de qualification se traduisent par des tailles et des quantit\u00e9s de d\u00e9fauts autoris\u00e9es diff\u00e9rentes.<\/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},"featured_media":0,"template":"","categories":[],"tags":[],"class_list":["post-46913","blog","type-blog","status-publish","hentry"],"yoast_head":"\nWelding coefficient in the order - Stainless Steel Pipe and Fittings | KAYSUNS<\/title>\n<meta name=\"description\" content=\"Welding coefficient in the order.In the inquiry orders for stainless steel welded pipes, words such as "Ej=1.0" or "Ej=0.85" are often seen.\" \/>\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\/coefficient-de-soudure-dans-lordre\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Welding coefficient in the order - 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