{"id":11073,"date":"2021-11-08T09:11:10","date_gmt":"2021-11-08T09:11:10","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=11073"},"modified":"2021-11-08T09:11:10","modified_gmt":"2021-11-08T09:11:10","slug":"continuous-casting-rolling","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/pt\/continuous-casting-rolling\/","title":{"rendered":"Laminagem por fundi\u00e7\u00e3o cont\u00ednua"},"content":{"rendered":"

O m\u00e9todo de fundi\u00e7\u00e3o e lamina\u00e7\u00e3o cont\u00ednuas com rolos duplos para a produ\u00e7\u00e3o de chapas laminadas a quente refere-se a um m\u00e9todo de produ\u00e7\u00e3o no qual o metal l\u00edquido \u00e9 cristalizado diretamente entre dois rolos girat\u00f3rios e, ao mesmo tempo, transformado em uma chapa laminada. Devido ao seu processo de produ\u00e7\u00e3o simples, curto prazo de constru\u00e7\u00e3o, baixo custo de produ\u00e7\u00e3o, baixo investimento e ocupa\u00e7\u00e3o de espa\u00e7o reduzida, essa tecnologia tem sido amplamente desenvolvida.<\/p>\n

O processo de fundi\u00e7\u00e3o e lamina\u00e7\u00e3o cont\u00ednuas consiste na introdu\u00e7\u00e3o cont\u00ednua de metal l\u00edquido entre dois rolos de fundi\u00e7\u00e3o internos, refrigerados a \u00e1gua, que giram em rela\u00e7\u00e3o um ao outro. Por meio do resfriamento e da fundi\u00e7\u00e3o, a tira de alum\u00ednio fundida e laminada \u00e9 laminada de forma direta e cont\u00ednua.<\/p>\n

A principal caracter\u00edstica desse processo \u00e9 que dois rolos de fundi\u00e7\u00e3o rotativos, resfriados a \u00e1gua, s\u00e3o utilizados como cristalizadores, e o alum\u00ednio fundido passa pelos dois processos de solidifica\u00e7\u00e3o e deforma\u00e7\u00e3o por lamina\u00e7\u00e3o a quente em um curto espa\u00e7o de tempo entre as aberturas dos rolos de fundi\u00e7\u00e3o. A tira de alum\u00ednio produzida por esse processo apresenta menor perda por desperd\u00edcio, alto rendimento, poucos procedimentos de produ\u00e7\u00e3o, ciclo curto e alta efici\u00eancia produtiva.<\/p>\n

A fun\u00e7\u00e3o da fundi\u00e7\u00e3o bocal de alimenta\u00e7\u00e3o<\/a>\u00a0consiste em enviar o alum\u00ednio fundido para o espa\u00e7o entre os rolos de fundi\u00e7\u00e3o. Portanto, o bocal de alimenta\u00e7\u00e3o \u00e9 um componente essencial que distribui e transporta diretamente o alum\u00ednio fundido para o espa\u00e7o entre os rolos no processo de fundi\u00e7\u00e3o e lamina\u00e7\u00e3o cont\u00ednuas, al\u00e9m de ser o ponto de estrangulamento do sistema de fundi\u00e7\u00e3o. Sua estrutura adequada afeta diretamente a qualidade e a produ\u00e7\u00e3o do produto.<\/p>\n

\"Dica<\/p>\n

O bico de alimenta\u00e7\u00e3o \u00e9 composto por um leque de entrada, uma junta e abas laterais. A borda do bico de alimenta\u00e7\u00e3o n\u00e3o deve ser muito espessa, pois, se for, poder\u00e1 ro\u00e7ar facilmente na superf\u00edcie do rolo e riscar tanto a superf\u00edcie do rolo quanto a da placa. A borda do bico de alimenta\u00e7\u00e3o tamb\u00e9m n\u00e3o deve ser muito fina, pois, se for, poder\u00e1 ser facilmente danificada. \u00c9 necess\u00e1rio considerar sua rela\u00e7\u00e3o com o canal de fluxo para garantir que o canal de fluxo do metal seja largo o suficiente para assegurar o fluxo desobstru\u00eddo do l\u00edquido. Para determinar o tamanho da borda do bico de alimenta\u00e7\u00e3o, deve-se levar em conta, de forma integrada, a \u00e1rea de fundi\u00e7\u00e3o, a liga, a espessura da chapa e o tamanho do canal de alimenta\u00e7\u00e3o.<\/p>\n

Os requisitos para o dispositivo do bico de alimenta\u00e7\u00e3o s\u00e3o:<\/p>\n

(1) A estrutura deve ser resistente e confi\u00e1vel para garantir a continuidade da produ\u00e7\u00e3o.
\n(2) A estrutura deve ser simples, f\u00e1cil de operar e substituir.
\n(3) O bico de alimenta\u00e7\u00e3o apresenta melhor resist\u00eancia ao calor e boa reten\u00e7\u00e3o de calor.<\/p>","protected":false},"excerpt":{"rendered":"

The double-roll continuous casting-rolling method to produce cast-rolled strip blanks refers to a production method in which liquid metal is directly crystallized between two rotating…<\/p>","protected":false},"author":1,"featured_media":11074,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[],"class_list":["post-11073","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"\nContinuous Casting Rolling with Caster Tip and Nozzle<\/title>\n<meta name=\"description\" content=\"The double-roll continuous casting-rolling method is directly crystallized between two rotating rolls and processed into a strip blank.\" \/>\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.alalloycasting.com\/pt\/continuous-casting-rolling\/\" 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