{"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":"precaucoes-e-instrucoes-uns-n04400","status":"publish","type":"post","link":"https:\/\/www.kaysuns.com\/pt\/precaucoes-e-instrucoes-uns-n04400\/","title":{"rendered":"Precau\u00e7\u00f5es e instru\u00e7\u00f5es de processo para soldagem de tubos soldados de liga UNS N04400"},"content":{"rendered":"
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UNS N04400<\/strong>tamb\u00e9m chamado de monel 400, MCu-28-1.5-1.8 ou Ni68Cu28Fe.
\u00c9 um liga \u00e0 base de n\u00edquel<\/a> material com boa resist\u00eancia \u00e0 corros\u00e3o<\/a> em \u00e1gua do mar, solventes qu\u00edmicos e v\u00e1rios meios \u00e1cidos.
Especialmente em rela\u00e7\u00e3o \u00e0 resist\u00eancia \u00e0 corros\u00e3o por \u00e1cido fluor\u00eddrico, ficou em primeiro lugar entre as ligas gerais \u00e0 base de n\u00edquel.
O principal componentes<\/a> do Monel 400 s\u00e3o N\u00cdQUEL<\/strong> e COBRE<\/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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Precau\u00e7\u00f5es de soldagem para N04400<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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O Monel 400 tem bom desempenho de soldagem, pode ser usado no m\u00e9todo TIG e MIG, pode usar o corpo do Monel ou o fio EniCu-7, eletrodo. Ou soldagem manual por arco el\u00e9trico e soldagem por arco submerso, pode ser soldada com a\u00e7o carbono e a\u00e7o de baixa liga. Lembramos a voc\u00ea os dois pontos a seguir.<\/p>

\u00c9 f\u00e1cil produzir rachaduras t\u00e9rmicas, especialmente no po\u00e7o do arco, onde a sensibilidade \u00e0 rachadura \u00e9 maior. Principalmente na segrega\u00e7\u00e3o de S e P no po\u00e7o do arco, S, P e Ni formam um co-cristal de baixo ponto de fus\u00e3o. No processo de cristaliza\u00e7\u00e3o da solda, a segrega\u00e7\u00e3o no limite do cristal, sob a a\u00e7\u00e3o da tens\u00e3o de tra\u00e7\u00e3o, produz trincas. Portanto, o teor de S e P deve ser rigorosamente controlado.<\/p>

O metal l\u00edquido tem pouca fluidez e pode dissolver gases como oxig\u00eanio, nitrog\u00eanio e hidrog\u00eanio, o que o torna propenso \u00e0 porosidade.<\/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\tO que fazemos\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\tO KAYSUNS fornece uma solu\u00e7\u00e3o em pacote para materiais de tubula\u00e7\u00e3o como tubos, conex\u00f5es, flanges, v\u00e1lvulas em a\u00e7o inoxid\u00e1vel, a\u00e7o duplex e a\u00e7o-liga, 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\tContate-nos\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 Descri\u00e7\u00e3o da soldagem<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Para testar seu desempenho e processo de soldagem, citamos um exemplo de cliente para fazer um guia de teste de soldagem.<\/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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Especifica\u00e7\u00f5es da placa de teste<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Duas placas de teste 10*300*100, \u00e2ngulo de chanfro de soldagem de 37,5\u00b0, borda cega de 4 mm, usando um processamento de plaina. A origem da placa de teste \u00e9 a VDM, Alemanha.<\/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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Teste do processo de soldagem<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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O processo de soldagem de teste consiste em primeiro chanfrar, depois montar a placa de teste e sold\u00e1-la por pontos, com a adi\u00e7\u00e3o das placas de entrada e sa\u00edda 304.
Em seguida, a limpeza pr\u00e9-soldagem \u00e9 realizada para preparar a soldagem.
A soldagem \u00e9 automatizada, usando o processo PAW para prepara\u00e7\u00e3o, seguido de tr\u00eas passes de arame de enchimento TIG e soldagem de cobertura.
Ap\u00f3s a conclus\u00e3o da soldagem, foi realizada a inspe\u00e7\u00e3o RT e foram realizados testes mec\u00e2nicos.
Devido ao tamanho limitado da placa de teste, o teste mec\u00e2nico s\u00f3 foi capaz de concluir o teste de tra\u00e7\u00e3o e o teste de flex\u00e3o para frente e para tr\u00e1s da solda.<\/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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Situa\u00e7\u00e3o da soldagem<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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O operador deve operar de maneira padronizada e controlar os par\u00e2metros de soldagem adequadamente. Nesse momento, a chapa soldada tem boa qualidade de soldagem e atende aos requisitos de desempenho da liga N04400.<\/p>

Uso pequeno calor<\/strong> para reduzir a probabilidade de rachaduras. Baixas especifica\u00e7\u00f5es de soldagem<\/strong> (corrente, tens\u00e3o, velocidade de soldagem) para reduzir o risco de deforma\u00e7\u00e3o e defeitos de soldagem. Controle a temperatura da camada intermedi\u00e1ria menos de 100\u2103<\/strong> para reduzir a influ\u00eancia do ciclo de calor no processo de soldagem.<\/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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Processo de soldagem N04400<\/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, metal fundido Composi\u00e7\u00e3o qu\u00edmica<\/strong> (%)\n\n\n\n\n\n\n
Designa\u00e7\u00e3o<\/th>\nDi\u00e2metro (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
Arame de solda<\/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>\nRestante<\/td>\n65.11<\/td>\n\/<\/td>\n<\/tr>\n
Haste de solda<\/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>\nObserva\u00e7\u00e3o: Arame de solda ERNiCu-7 Monel-60. Vareta de solda 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, Vareta de solda 350\u2103\u00d71h de secagem; arame preste aten\u00e7\u00e3o \u00e0 limpeza da superf\u00edcie. Pr\u00e9-aque\u00e7a abaixo de 100\u00b0C, se necess\u00e1rio.<\/p>

\u2162, polaridade de soldagem a arco para conex\u00e3o reversa de CC, TIG para conex\u00e3o positiva de CC, conex\u00e3o positiva de di\u00e2metro de tungst\u00eanio, di\u00e2metro de tungst\u00eanio \u03c63mm, di\u00e2metro do bocal \u03c610mm, pureza de arg\u00f4nio 99,99%.<\/p>

\u2163, esmerilhamento mec\u00e2nico e esfregue o chanfro e sua borda com acetona.<\/p>

V, forma de chanfro e sequ\u00eancia de soldagem<\/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\u2165, Par\u00e2metros de soldagem\n\n\n\n\n\n\n\n
M\u00e9todo de soldagem<\/th>\nN\u00edveis de soldagem<\/th>\nCorrente de soldagem (A)<\/th>\nTens\u00e3o de arco (V)<\/th>\nVelocidade de soldagem (cm\/min)<\/th>\n12<\/th>\nVaz\u00e3o de arg\u00f4nio (L\/min)<\/th>\nTemperatura da camada intermedi\u00e1ria (\u00b0C)<\/th>\n<\/tr>\n<\/thead>\n
TIG<\/td>\nCamada inferior<\/td>\n70 ~ 120<\/td>\n14 ~ 18<\/td>\n10<\/td>\n10080<\/td>\n8 ~ 12<\/td>\n\/<\/td>\n<\/tr>\n
TIG<\/td>\nSegundo<\/td>\n95 ~ 120<\/td>\n14 ~ 18<\/td>\n6<\/td>\n15400<\/td>\n8 ~ 12<\/td>\nMenos de 100<\/td>\n<\/tr>\n
Soldagem com arco manual<\/td>\nCamada de cobertura<\/td>\n110 ~ 120<\/td>\n22 ~ 24<\/td>\n7<\/td>\n20740<\/td>\n\/<\/td>\nMenos 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, o arame de enchimento deve ser mantido em um \u00e2ngulo adequado para uma alimenta\u00e7\u00e3o r\u00e1pida.<\/p>

\u2168, controle a profundidade da fus\u00e3o durante a aplica\u00e7\u00e3o e mantenha a taxa de fus\u00e3o abaixo de 50%. Use tamb\u00e9m uma corrente baixa.<\/p>

\u2169, caminhos de solda estreitos e planos s\u00e3o os melhores. As pe\u00e7as de solda de face elevada devem minimizar o volume da po\u00e7a de fus\u00e3o para facilitar a modelagem da solda. Ao fechar o arco, preste aten\u00e7\u00e3o para preencher o po\u00e7o do arco.<\/p>

\u216a, Use a soldagem de arco curto para evitar a ingest\u00e3o excessiva de gases nocivos durante o processo de soldagem.<\/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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Talvez voc\u00ea tamb\u00e9m queira ler:
A arte e a ci\u00eancia da soldagem de tubos<\/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, tamb\u00e9m chamado de monel 400, MCu-28-1.5-1.8 ou Ni68Cu28Fe. \u00c9 um material de liga \u00e0 base de n\u00edquel com boa resist\u00eancia \u00e0 corros\u00e3o na \u00e1gua do mar, em solventes qu\u00edmicos e em v\u00e1rios meios \u00e1cidos. Especialmente na resist\u00eancia \u00e0 corros\u00e3o por \u00e1cido fluor\u00eddrico, ficou em primeiro lugar entre as ligas gerais \u00e0 base de n\u00edquel. Precau\u00e7\u00f5es de soldagem para o N04400 O Monel 400 tem boa... Leia mais \"Precau\u00e7\u00f5es e instru\u00e7\u00f5es de processo para soldagem de tubos soldados de liga UNS N04400<\/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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