{"id":7672,"date":"2021-01-21T07:21:47","date_gmt":"2021-01-21T07:21:47","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=7672"},"modified":"2021-01-21T07:21:47","modified_gmt":"2021-01-21T07:21:47","slug":"molten-al-filtering","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/pt\/molten-al-filtering\/","title":{"rendered":"Filtragem de Al fundido"},"content":{"rendered":"<p>A AdTech fornece um filtro avan\u00e7ado de espuma cer\u00e2mica de alumina para a filtragem de alum\u00ednio fundido, que apresenta uma efici\u00eancia aprimorada na remo\u00e7\u00e3o de inclus\u00f5es especialmente finas, com tamanho de cerca de 10 a 25 \u03bcm. Os filtros de espuma cer\u00e2mica s\u00e3o amplamente utilizados para a filtragem de alum\u00ednio fundido em fundi\u00e7\u00f5es prim\u00e1rias e secund\u00e1rias de alum\u00ednio; eles tamb\u00e9m s\u00e3o aplicados como meios filtrantes na engenharia de separa\u00e7\u00e3o g\u00e1s-l\u00edquido e l\u00edquido-s\u00f3lido.<\/p>\n<p>A reciclagem de sucata de alum\u00ednio (ou seja, a refundi\u00e7\u00e3o da sucata de alum\u00ednio para uso como mat\u00e9ria-prima a ser fundida) pode proporcionar uma economia de energia consideravelmente grande e, portanto, trazer grandes vantagens.<\/p>\n<p>No entanto, a sucata de alum\u00ednio geralmente cont\u00e9m diversas impurezas em altas concentra\u00e7\u00f5es. Assim, o alum\u00ednio fundido ou a liga de alum\u00ednio fundida obtidos pela refundi\u00e7\u00e3o dessa sucata de alum\u00ednio provavelmente conter\u00e3o uma variedade de inclus\u00f5es, incluindo muitos tipos de inclus\u00f5es n\u00e3o met\u00e1licas. As inclus\u00f5es n\u00e3o met\u00e1licas s\u00e3o, por exemplo, \u00f3xidos originalmente contidos na sucata de alum\u00ednio a ser utilizada como mat\u00e9ria-prima para a fus\u00e3o ou \u00f3xidos produzidos pela rea\u00e7\u00e3o das impurezas contidas na sucata de alum\u00ednio com o oxig\u00eanio da atmosfera durante a refundi\u00e7\u00e3o.<\/p>\n<p>Consequentemente, no caso de se utilizar essa sucata de produtos de liga de alum\u00ednio como parte ou como a totalidade da mat\u00e9ria-prima de alum\u00ednio, \u00e9 necess\u00e1rio remover as inclus\u00f5es, pelo menos do alum\u00ednio fundido obtido pela fus\u00e3o da mat\u00e9ria-prima de alum\u00ednio. Portanto, al\u00e9m do processo de refino, como a desgaseifica\u00e7\u00e3o do alum\u00ednio fundido com o uso de <a href=\"http:\/\/www.alalloycasting.com\/pt\/fluxes\/\">fluxos<\/a>, o que tem sido realizado \u00e9 um processo de remo\u00e7\u00e3o de inclus\u00f5es do alum\u00ednio fundido, como o m\u00e9todo de neutraliza\u00e7\u00e3o, o m\u00e9todo do g\u00e1s ativo e a filtragem do alum\u00ednio fundido.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-7666\" src=\"http:\/\/alalloycasting.com\/wp-content\/uploads\/2021\/01\/Filter-for-Molten-Aluminum.jpg\" alt=\"Filtro para alum\u00ednio fundido\" width=\"500\" height=\"400\" srcset=\"https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2021\/01\/Filter-for-Molten-Aluminum.jpg 500w, https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2021\/01\/Filter-for-Molten-Aluminum-300x240.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/p>\n<p>A AdTech oferece um <a href=\"http:\/\/www.alalloycasting.com\/pt\/adtech-ceramic-foam-filter\/\">filtro de espuma cer\u00e2mica avan\u00e7ado<\/a>\u00a0com uma capacidade de filtragem aprimorada para remover part\u00edculas de inclus\u00e3o particularmente finas do alum\u00ednio fundido ou da liga de alum\u00ednio fundida. O filtro avan\u00e7ado inclui um elemento de malha agregada feito de um material refrat\u00e1rio e uma camada de revestimento formada na superf\u00edcie desse elemento de malha agregada.<\/p>\n<p>Um filtro de espuma cer\u00e2mica para ligas de alum\u00ednio fundido, cuja composi\u00e7\u00e3o qu\u00edmica \u00e9 composta por: 20 \u2013 70 wt% de Al\u2082O\u2083, 20 \u2013 60 wt% de SiO\u2082, 0\u201310 wt% de CaO, 0\u201310 wt%; MgO e 2\u201320% em peso de B\u2082O\u2083. O filtro de espuma cer\u00e2mica \u00e9 um produto \u00e0 base de alta alumina, sem fosfatos. Caracteriza-se por alta porosidade e estabilidade mec\u00e2nico-qu\u00edmica, al\u00e9m de excelente resist\u00eancia ao ataque t\u00e9rmico e \u00e0 corros\u00e3o causados pelo alum\u00ednio fundido, Ele pode remover inclus\u00f5es de forma eficaz, reduzir o g\u00e1s retido e proporcionar fluxo laminar durante a filtragem de alum\u00ednio fundido. \u00c9 usinado com toler\u00e2ncias dimensionais rigorosas durante a produ\u00e7\u00e3o; essa combina\u00e7\u00e3o de propriedades f\u00edsicas e toler\u00e2ncias precisas o torna a primeira escolha para a filtragem de metais n\u00e3o ferrosos fundidos.<\/p>","protected":false},"excerpt":{"rendered":"<p>AdTech provides an advanced alumina ceramic foam filter for molten Al filtering, it has an improved efficiency of removing especially fine inclusions of about 10&hellip;<\/p>","protected":false},"author":1,"featured_media":7673,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[],"class_list":["post-7672","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Molten Al Filtering with Alumina Ceramic Foam Filter<\/title>\n<meta name=\"description\" content=\"AdTech provides an advanced filter for molten Al filtering, it has an improved efficiency of removing especially fine inclusions.\" \/>\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\/molten-al-filtering\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta 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