{"id":10183,"date":"2021-09-07T09:20:05","date_gmt":"2021-09-07T09:20:05","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=10183"},"modified":"2021-09-07T09:23:23","modified_gmt":"2021-09-07T09:23:23","slug":"aluminium-metal-filtration","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/pt\/aluminium-metal-filtration\/","title":{"rendered":"Filtragem de alum\u00ednio met\u00e1lico"},"content":{"rendered":"

A tecnologia de filtragem de alum\u00ednio visa eliminar, na medida do poss\u00edvel, as inclus\u00f5es presentes na liga. Dessa forma, devido \u00e0 redu\u00e7\u00e3o das inclus\u00f5es, a zona pl\u00e1stica na ponta da trincas \u00e9 ampliada, o que leva a um aumento da resist\u00eancia \u00e0 propaga\u00e7\u00e3o de trincas e do desempenho da liga de alum\u00ednio.<\/p>\n

Antes de ser filtrada, a liga de alum\u00ednio cont\u00e9m muitas inclus\u00f5es. Essas inclus\u00f5es costumam formar microporos e favorecer a propaga\u00e7\u00e3o de trincas. Elas aumentam a viscosidade do metal fundido e reduzem a fluidez. Quando o metal fundido se solidifica, o canal de alimenta\u00e7\u00e3o entre os dendritos fica propenso a entupir, formando min\u00fasculas cavidades de retra\u00e7\u00e3o e poros. Essas s\u00e3o as raz\u00f5es que levam \u00e0 diminui\u00e7\u00e3o do desempenho da liga.<\/p>\n

O filtro cer\u00e2mico de espuma apresenta diversas vantagens, tais como boa estabilidade qu\u00edmica, alta resist\u00eancia espec\u00edfica, resist\u00eancia a altas temperaturas, resist\u00eancia ao choque t\u00e9rmico e grande \u00e1rea superficial espec\u00edfica. \u00c9 amplamente utilizado na ind\u00fastria metal\u00fargica de fus\u00e3o e fundi\u00e7\u00e3o de alum\u00ednio.<\/p>\n

\"Filtragem<\/p>\n

Na metalurgia, a filtragem do alum\u00ednio fundido por meio de filtros de espuma cer\u00e2mica permite remover contaminantes estranhos da massa fundida de chumbo, como esc\u00f3ria e inclus\u00f5es, sendo esse um dos m\u00e9todos mais eficazes de limpeza da massa fundida.<\/p>\n

\u00c0 medida que os requisitos de qualidade dos produtos de alum\u00ednio se tornam cada vez mais exigentes, os requisitos para os filtros de espuma cer\u00e2mica tamb\u00e9m se tornam cada vez mais exigentes.<\/p>\n

Escolhendo o certo placa filtrante de espuma cer\u00e2mica<\/a> \u00e9 uma tarefa importante. O tamanho da placa filtrante depende da vaz\u00e3o e da quantidade total do metal filtrado. A fundi\u00e7\u00e3o semicont\u00ednua leva em conta principalmente a vaz\u00e3o do metal, enquanto a fundi\u00e7\u00e3o cont\u00ednua considera principalmente a quantidade total de metal. Na \u00e1rea efetiva de filtragem, a vaz\u00e3o de metal por cent\u00edmetro quadrado por minuto deve ser de 70 a 210 g. Quando a vaz\u00e3o do metal filtrado excede esse intervalo, a efici\u00eancia da filtragem e a capacidade de captura de res\u00edduos s\u00e3o drasticamente reduzidas. \u00c0 medida que o tamanho dos poros da placa filtrante diminui, o tamanho das impurezas retidas tamb\u00e9m diminui, e a efici\u00eancia da filtragem e da remo\u00e7\u00e3o de impurezas aumenta.<\/p>","protected":false},"excerpt":{"rendered":"

The aluminium metal filtration technology is to filter out the inclusions contained in the alloy as much as possible. In this way, due to the…<\/p>","protected":false},"author":1,"featured_media":10195,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[12521,21],"class_list":["post-10183","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-aluminium-metal-filtration","tag-ceramic-foam-filter"],"yoast_head":"\nAluminium Metal Filtration with Ceramic Foam Filter<\/title>\n<meta name=\"description\" content=\"The aluminium metal ceramic foam filtration technology is to filter out the inclusions contained in the alloy as much as possible.\" \/>\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\/aluminium-metal-filtration\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" 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