{"id":9694,"date":"2021-07-28T06:34:27","date_gmt":"2021-07-28T06:34:27","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=9694"},"modified":"2021-07-28T06:34:27","modified_gmt":"2021-07-28T06:34:27","slug":"aluminum-alloy-filtration","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/pt\/aluminum-alloy-filtration\/","title":{"rendered":"Filtragem de liga de alum\u00ednio"},"content":{"rendered":"

No caso das pe\u00e7as fundidas de liga de alum\u00ednio, as inclus\u00f5es e os gases s\u00e3o os fatores mais importantes que afetam seu desempenho e podem at\u00e9 mesmo levar ao descarte das pe\u00e7as. Para reduzir a taxa de rejei\u00e7\u00e3o das pe\u00e7as fundidas de alum\u00ednio, produzir pe\u00e7as de alta qualidade e atender \u00e0s necessidades da produ\u00e7\u00e3o real, \u00e9 dif\u00edcil resolver o problema contando apenas com os processos tradicionais de purifica\u00e7\u00e3o. Portanto, a pesquisa e o desenvolvimento de novos processos de purifica\u00e7\u00e3o, mais eficazes e pr\u00e1ticos, tornaram-se uma prioridade m\u00e1xima. Por meio de muito trabalho e experimentos repetidos, a maioria dos trabalhadores da fundi\u00e7\u00e3o finalmente pesquisou e desenvolveu a tecnologia de filtragem de ligas de alum\u00ednio.<\/p>\n

A tecnologia de filtragem de ligas de alum\u00ednio \u00e9 uma tecnologia que realiza a purifica\u00e7\u00e3o secund\u00e1ria antes que o l\u00edquido de liga de alum\u00ednio entre no composto de moldagem. Suas capacidades de desgaseifica\u00e7\u00e3o e remo\u00e7\u00e3o de esc\u00f3ria s\u00e3o muito significativas. Esse tipo de tecnologia de filtragem est\u00e1 gradualmente amadurecendo. Atualmente, a tecnologia de filtragem de ligas de alum\u00ednio pode ser aplicada com sucesso \u00e0 produ\u00e7\u00e3o de pe\u00e7as fundidas, como fundi\u00e7\u00e3o em molde de areia, fundi\u00e7\u00e3o em molde met\u00e1lico, fundi\u00e7\u00e3o de baixa press\u00e3o, fundi\u00e7\u00e3o de precis\u00e3o e fundi\u00e7\u00e3o por espuma perdida.<\/p>\n

A tecnologia de filtragem do alum\u00ednio fundido permite reduzir as impurezas e inclus\u00f5es presentes na massa fundida. A qualidade do tratamento do alum\u00ednio fundido influencia a qualidade do lingote e, consequentemente, a qualidade dos materiais processados posteriormente. Portanto, a tecnologia de filtragem do alum\u00ednio fundido \u00e9 uma parte importante da tecnologia de produ\u00e7\u00e3o de materiais de alum\u00ednio processados.<\/p>\n

\"Filtragem<\/p>\n

O dispositivo de filtragem de alum\u00ednio fundido \u00e9 uma aplica\u00e7\u00e3o dessa tecnologia. O dispositivo de filtragem de alum\u00ednio fundido mais utilizado \u00e9 a caixa de filtro de espuma cer\u00e2mica CFF. A caixa de filtro de espuma cer\u00e2mica CFF \u00e9 composta por um corpo da caixa de filtro e um Filtro CFF<\/a> placa. O corpo da caixa de filtro \u00e9 composto por v\u00e1rias camadas de materiais refrat\u00e1rios e uma estrutura de a\u00e7o. O material refrat\u00e1rio em contato com o material fundido \u00e9 geralmente fabricado por meio de uma \u00fanica fundi\u00e7\u00e3o com bet\u00e3o refrat\u00e1rio de alum\u00ednio antiaderente. Algumas caixas de filtro tamb\u00e9m s\u00e3o equipadas com dispositivos de aquecimento, que geralmente s\u00e3o dispostos na parte superior ou inferior para manter o material fundido aquecido.<\/p>\n

O placa de filtro de cer\u00e2mica com espuma<\/a> \u00e9 injetada no pl\u00e1stico esponjoso com uma mistura de AI\u2082O\u2083 e fosfato e, em seguida, seca e sinterizada para volatilizar o pl\u00e1stico esponjoso, formando assim canais sinuosos e poros na placa filtrante. Durante a filtragem, o alum\u00ednio fundido \u00e9 retido pela placa filtrante e flui ao longo dos canais sinuosos e poros da placa. As impurezas e inclus\u00f5es no alum\u00ednio fundido entram em contato com a superf\u00edcie interna dos poros da placa filtrante sob os efeitos de deposi\u00e7\u00e3o, in\u00e9rcia, intercepta\u00e7\u00e3o etc., e permanecem nas fendas, orif\u00edcios de retra\u00e7\u00e3o, cavidades e outros locais da placa filtrante, sendo afetadas axialmente pelo fluxo do alum\u00ednio fundido. Sob press\u00e3o, atrito, adsor\u00e7\u00e3o superficial etc., as impurezas e inclus\u00f5es no alum\u00ednio fundido ficam firmemente retidas na placa filtrante e s\u00e3o separadas do alum\u00ednio l\u00edquido.<\/p>","protected":false},"excerpt":{"rendered":"

For aluminum alloy castings, inclusions and gas are the most important factors that affect their performance and even cause castings to be scrapped. To reduce…<\/p>","protected":false},"author":1,"featured_media":9695,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[],"class_list":["post-9694","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"\nAluminum Alloy Filtration with CFF Foam Ceramic Filter Box<\/title>\n<meta name=\"description\" content=\"Aluminum alloy filtration technology performs secondary purification before the aluminum alloy liquid enters the molding compound.\" \/>\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\/aluminum-alloy-filtration\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Aluminum Alloy Filtration with 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