{"id":2576,"date":"2020-07-03T08:26:36","date_gmt":"2020-07-03T08:26:36","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=2576"},"modified":"2020-09-28T08:23:54","modified_gmt":"2020-09-28T08:23:54","slug":"6063-aluminum-rod","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/pt\/6063-aluminum-rod\/","title":{"rendered":"Barra de alum\u00ednio 6063"},"content":{"rendered":"

O ferro \u00e9 o principal elemento de impureza nas ligas de alum\u00ednio. Na barra de alum\u00ednio 6063, a norma nacional estipula que esse teor n\u00e3o deve exceder 0,35. Se for utilizado na produ\u00e7\u00e3o um lingote de alum\u00ednio industrial de primeira qualidade, o teor geral de ferro pode ser mantido abaixo de 0,25. No entanto, se, para reduzir os custos de produ\u00e7\u00e3o, for utilizada uma grande quantidade de alum\u00ednio reciclado ou de outro tipo, o teor de ferro exceder\u00e1 facilmente o limite estabelecido pela norma. Existem duas formas de Fe no alum\u00ednio: uma \u00e9 a fase \u03b2 (Al\u2089Fe\u2082Si\u2082), com estrutura em forma de agulha (ou em forma de folha), e a outra \u00e9 a fase \u03b1, com estrutura granular (Al\u2081\u2082Fe\u2083Si). Estruturas de fases diferentes t\u00eam efeitos distintos nas ligas de alum\u00ednio. A fase \u03b2, de estrutura lamelar, \u00e9 muito mais prejudicial do que a fase \u03b1, de estrutura granular. A fase \u03b2 pode tornar a superf\u00edcie do perfil de alum\u00ednio \u00e1spera, prejudicando as propriedades mec\u00e2nicas e a resist\u00eancia \u00e0 corros\u00e3o. A superf\u00edcie do perfil oxidado apresenta uma colora\u00e7\u00e3o azulada, o brilho \u00e9 reduzido e n\u00e3o se obt\u00e9m a tonalidade correta ap\u00f3s a colora\u00e7\u00e3o. Portanto, o teor de ferro deve ser controlado.<\/p>\n

Melhorar a qualidade da barra de alum\u00ednio 6063<\/h2>\n

Para reduzir os efeitos nocivos do ferro, podem ser tomadas as seguintes medidas.<\/p>\n

1) Todas as ferramentas utilizadas na fundi\u00e7\u00e3o e na moldagem devem ser revestidas com verniz antes do uso, a fim de reduzir ao m\u00e1ximo a quantidade de ferro presente no alum\u00ednio fundido.
\n2) Refinar os gr\u00e3os, tornar a fase de ferro mais fina e menor e reduzir seus efeitos nocivos.
\n3) Adicione uma quantidade adequada de modificador de estr\u00f4ncio<\/a> para transformar a fase \u03b2 na fase \u03b1, reduzindo seus efeitos nocivos.
\n4) Selecionar cuidadosamente os res\u00edduos e materiais diversos para reduzir ao m\u00e1ximo a entrada de itens como fio de ferro, pregos de ferro, limalha de ferro e outros detritos no forno de fus\u00e3o de alum\u00ednio, a fim de evitar um aumento no teor de ferro.<\/p>\n

\"Barra<\/p>\n

Purifica\u00e7\u00e3o de impurezas<\/h2>\n

Outros elementos de impureza s\u00e3o muito escassos nos lingotes de alum\u00ednio eletrol\u00edtico, ficando bem abaixo do padr\u00e3o nacional, podendo, no entanto, exceder o padr\u00e3o quando se utiliza alum\u00ednio reciclado. Na produ\u00e7\u00e3o, n\u00e3o s\u00f3 o teor de cada elemento deve estar dentro dos limites, como tamb\u00e9m a quantidade total de elementos de impureza n\u00e3o deve ser excedida. Quando o teor de um \u00fanico elemento n\u00e3o excede o padr\u00e3o, mas a quantidade total o excede, esses elementos de impureza tamb\u00e9m exercem grande influ\u00eancia na qualidade do perfil. Em particular, \u00e9 preciso enfatizar que a pr\u00e1tica comprovou que, quando o teor de zinco atinge 0,05, aparecem manchas brancas na superf\u00edcie do perfil ap\u00f3s a oxida\u00e7\u00e3o; portanto, o teor de zinco deve ser mantido abaixo de 0,05. A AdTech oferece filtro de espuma cer\u00e2mica<\/a>(CFF) e sistema de filtragem por placas<\/a> para alum\u00ednio l\u00edquido. Se precisar, fique \u00e0 vontade para entre em contato conosco<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"

Iron is the main impurity element in aluminum alloys. In 6063 aluminum rod, the national standard stipulates that it is not more than 0.35. If…<\/p>","protected":false},"author":1,"featured_media":5299,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[21,749,750],"class_list":["post-2576","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-ceramic-foam-filter","tag-cff","tag-plate-filtering-system"],"yoast_head":"\n6063 Aluminum Rod Impurity Purification by Ceramic Foam Filter<\/title>\n<meta name=\"description\" content=\"Add an appropriate amount of strontium to transform the \u03b2 phase into the \u03b1 phase, reducing 6063 aluminum rod harmful effects.\" \/>\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\/6063-aluminum-rod\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" 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