{"id":4724,"date":"2020-09-14T08:57:20","date_gmt":"2020-09-14T08:57:20","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=4724"},"modified":"2020-09-14T08:57:20","modified_gmt":"2020-09-14T08:57:20","slug":"continuous-casting-technology","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/pt\/continuous-casting-technology\/","title":{"rendered":"Tecnologia de Fundi\u00e7\u00e3o Cont\u00ednua"},"content":{"rendered":"<p>A tecnologia de lingotamento cont\u00ednuo permite a produ\u00e7\u00e3o direta de fio-m\u00e1quina, o que pode eliminar as etapas de lamina\u00e7\u00e3o ou extrus\u00e3o e seus processos pr\u00e9 e p\u00f3s-produ\u00e7\u00e3o, encurtar o processo de produ\u00e7\u00e3o, reduzir o n\u00famero de equipamentos e instala\u00e7\u00f5es de produ\u00e7\u00e3o, acelerar o ciclo de produ\u00e7\u00e3o e diminuir os custos de investimento e de produ\u00e7\u00e3o.<\/p>\n<p>Tradicionalmente, as barras de arame s\u00e3o feitas de metal e, muitas vezes, o processo de fabrica\u00e7\u00e3o \u00e9 dividido em duas etapas: a produ\u00e7\u00e3o de lingotes e, em seguida, a produ\u00e7\u00e3o das barras de arame. Existem v\u00e1rias maneiras de fabricar barras de arame a partir de lingotes. Anteriormente, utilizava-se o processo de forjamento livre para trefilar os lingotes. Com o surgimento do processo de lamina\u00e7\u00e3o, o forjamento foi gradualmente eliminado, e a lamina\u00e7\u00e3o por passagens tornou-se a principal forma de fabrica\u00e7\u00e3o de fios-mata. A linha de produ\u00e7\u00e3o de fios-mata por fundi\u00e7\u00e3o e lamina\u00e7\u00e3o cont\u00ednuas, como o calor residual da fundi\u00e7\u00e3o \u00e9 aproveitado para a lamina\u00e7\u00e3o, permite economizar a energia necess\u00e1ria para o reaquecimento. Atualmente, esse processo tem sido desenvolvido e utilizado a passos largos, sendo especialmente adequado para a produ\u00e7\u00e3o em larga escala de fio-m\u00e1quina de uma \u00fanica variedade e especifica\u00e7\u00e3o; j\u00e1 para tipos de fio-m\u00e1quina com muitas variedades e pequenos lotes, o m\u00e9todo de extrus\u00e3o \u00e9 o mais utilizado.<\/p>\n<p>No entanto, ainda existem muitos problemas relacionados \u00e0 tecnologia de fundi\u00e7\u00e3o cont\u00ednua de fio-m\u00e1quina. Por exemplo, as caracter\u00edsticas de solidifica\u00e7\u00e3o da fundi\u00e7\u00e3o cont\u00ednua determinam que a \u00e1rea central do lingote apresente defeitos como retra\u00e7\u00e3o, porosidade, segrega\u00e7\u00e3o e inclus\u00f5es.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-4726\" src=\"http:\/\/alalloycasting.com\/wp-content\/uploads\/2020\/09\/Continuous-Casting-Technology-1.jpg\" alt=\"Tecnologia de Fundi\u00e7\u00e3o Cont\u00ednua\" width=\"500\" height=\"400\" srcset=\"https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/09\/Continuous-Casting-Technology-1.jpg 500w, https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/09\/Continuous-Casting-Technology-1-300x240.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/p>\n<p>Com exce\u00e7\u00e3o de um pequeno n\u00famero de inclus\u00f5es nos lingotes de alum\u00ednio, que s\u00e3o introduzidas pelos equipamentos e processos de produ\u00e7\u00e3o, o alum\u00ednio combina-se principalmente com oxig\u00eanio, nitrog\u00eanio, carbono e enxofre no estado fundido para formar \u00f3xidos, nitretos, carbonetos e inclus\u00f5es n\u00e3o met\u00e1licas, como sulfeto e pel\u00edcula de \u00f3xido. Portanto, no processo de fus\u00e3o e fundi\u00e7\u00e3o, se os gases dissolvidos e as inclus\u00f5es n\u00e3o met\u00e1licas no alum\u00ednio l\u00edquido forem tratados de forma inadequada, defeitos metal\u00fargicos, como porosidade, inclus\u00f5es e poros, ser\u00e3o causados no lingote de alum\u00ednio. O uso de <a href=\"http:\/\/www.alalloycasting.com\/pt\/flux-refining\/\">refinamento por fluxo<\/a>, <a href=\"http:\/\/www.alalloycasting.com\/pt\/online-degassing-system\/\">sistema de desgaseifica\u00e7\u00e3o online<\/a>, e a tecnologia de filtragem CFF tamb\u00e9m pode melhorar a remo\u00e7\u00e3o do g\u00e1s contido na mat\u00e9ria-prima do lingote de alum\u00ednio. Por meio dessas medidas, o teor de inclus\u00f5es n\u00e3o met\u00e1licas, como g\u00e1s e \u00f3xido, na barra de alum\u00ednio pode ser controlado para um n\u00edvel muito baixo.<\/p>","protected":false},"excerpt":{"rendered":"<p>Continuous casting technology can directly prepare the wire rod, which can eliminate rolling or extrusion and its pre- and post-processes, shorten the production process, reduce&hellip;<\/p>","protected":false},"author":1,"featured_media":4725,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[4688],"class_list":["post-4724","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-continuous-casting-technology"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Continuous Casting Technology for Aluminum Wire 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