{"id":11873,"date":"2021-12-18T07:51:58","date_gmt":"2021-12-18T07:51:58","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=11873"},"modified":"2021-12-17T08:06:13","modified_gmt":"2021-12-17T08:06:13","slug":"cast-ceramic-filter","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/pt\/cast-ceramic-filter\/","title":{"rendered":"Filtro de cer\u00e2mica fundida"},"content":{"rendered":"

Estudos demonstraram que, al\u00e9m de remover a esc\u00f3ria, o filtro cer\u00e2mico fundido tamb\u00e9m pode reduzir o teor de hidrog\u00eanio na massa fundida de alum\u00ednio. Devido \u00e0 sua boa efic\u00e1cia na remo\u00e7\u00e3o de esc\u00f3ria, opera\u00e7\u00e3o simples, f\u00e1cil integra\u00e7\u00e3o com outras pe\u00e7as e baixo custo, ele se tornou um m\u00e9todo convencional de purifica\u00e7\u00e3o na ind\u00fastria de processamento de alum\u00ednio.<\/p>\n

A produ\u00e7\u00e3o de alum\u00ednio \u00e9 composta pela minera\u00e7\u00e3o de bauxita, pela produ\u00e7\u00e3o de alumina, pela eletr\u00f3lise do alum\u00ednio, pela fundi\u00e7\u00e3o e pela moldagem, al\u00e9m de outras etapas do processo.<\/p>\n

Primeiramente, o min\u00e9rio de bauxita \u00e9 extra\u00eddo, e o p\u00f3 de min\u00e9rio de alum\u00ednio \u00e9 produzido por meio de processos como lavagem com \u00e1gua e moagem; em seguida, a alumina \u00e9 obtida por meio de quatro processos complexos, como a calcina\u00e7\u00e3o.<\/p>\n

Os fabricantes de alumina adotam diferentes processos de produ\u00e7\u00e3o, incluindo principalmente o processo Bayer, o processo de sinteriza\u00e7\u00e3o com cal sodada e o processo combinado Bayer-sinteriza\u00e7\u00e3o. Geralmente, a bauxita de alta qualidade \u00e9 produzida pelo m\u00e9todo Bayer, enquanto a bauxita de m\u00e9dia e baixa qualidade \u00e9 produzida pelo m\u00e9todo combinado ou pelo m\u00e9todo de sinteriza\u00e7\u00e3o. Devido \u00e0 simplicidade do processo e ao baixo consumo de energia, o processo Bayer tornou-se o m\u00e9todo mais importante utilizado na produ\u00e7\u00e3o atual de alumina, e sua produ\u00e7\u00e3o representa cerca de 95% da produ\u00e7\u00e3o global total de alumina.<\/p>\n

A alumina eletrolisa o alum\u00ednio met\u00e1lico sob a a\u00e7\u00e3o de uma corrente forte, e esse processo \u00e9 chamado de alum\u00ednio eletrol\u00edtico.<\/p>\n

\"\"<\/p>\n

No que diz respeito \u00e0 metalurgia, o uso de placas filtrantes de espuma cer\u00e2mica<\/a> A remo\u00e7\u00e3o de impurezas estranhas da massa fundida de alum\u00ednio, como esc\u00f3ria e inclus\u00f5es, \u00e9 um dos m\u00e9todos mais eficazes de purifica\u00e7\u00e3o da massa fundida.<\/p>\n

O filtro de cer\u00e2mica moldada \u00e9 composto por in\u00fameros microporos uniformes. Quando o alum\u00ednio l\u00edquido passa por esses microporos, as part\u00edculas em suspens\u00e3o ficam retidas na superf\u00edcie do meio filtrante, e o fluido passa pelos canais dos microporos, produzindo diversos efeitos f\u00edsicos, de modo a alcan\u00e7ar os efeitos de filtra\u00e7\u00e3o mec\u00e2nica, purifica\u00e7\u00e3o, difus\u00e3o e fluidiza\u00e7\u00e3o.<\/p>\n

A tela de filtro met\u00e1lica e o filtro de tecido de fibra conseguem remover apenas as inclus\u00f5es maiores da liga de alum\u00ednio fundida, mas n\u00e3o conseguem remover as inclus\u00f5es abaixo do n\u00edvel do m\u00edcron. Al\u00e9m disso, a tela de filtro met\u00e1lica tamb\u00e9m contamina a liga de alum\u00ednio. A placa de filtro de espuma cer\u00e2mica \u00e9 capaz de filtrar inclus\u00f5es finas e melhorar significativamente as propriedades mec\u00e2nicas e a qualidade est\u00e9tica das pe\u00e7as fundidas.<\/p>","protected":false},"excerpt":{"rendered":"

Studies have shown that while removing slag, cast ceramic filter can also reduce the hydrogen content in the aluminum melt. Because of its good slag…<\/p>","protected":false},"author":1,"featured_media":11874,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[13064,13063],"class_list":["post-11873","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-aluminum-melt-smelting-and-purification","tag-cast-ceramic-filter"],"yoast_head":"\nCast Ceramic Filter, Aluminum Melt Smelting and Purification<\/title>\n<meta name=\"description\" content=\"Studies have shown that while removing slag, cast ceramic filter can also reduce the hydrogen content in the aluminum melt.\" \/>\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\/cast-ceramic-filter\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" 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