{"id":9864,"date":"2021-08-11T09:34:51","date_gmt":"2021-08-11T09:34:51","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=9864"},"modified":"2021-08-11T09:45:55","modified_gmt":"2021-08-11T09:45:55","slug":"filter-for-aluminum-alloys","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/pt\/filter-for-aluminum-alloys\/","title":{"rendered":"Filtro para ligas de alum\u00ednio"},"content":{"rendered":"

Nos \u00faltimos dez anos, de acordo com as caracter\u00edsticas das diferentes ligas, foram desenvolvidos, tanto no pa\u00eds quanto no exterior, filtros de espuma cer\u00e2mica de diversos materiais para filtrar metal fundido. Especialmente para a filtragem de alum\u00ednio e ligas de alum\u00ednio, o filtro de espuma cer\u00e2mica de alumina \u00e9 adequado para a filtragem de ligas de alum\u00ednio.<\/p>\n

A liga de alum\u00ednio tem facilidade de absorver g\u00e1s e incorporar impurezas n\u00e3o met\u00e1licas durante o processo de fundi\u00e7\u00e3o e conforma\u00e7\u00e3o das pe\u00e7as fundidas, reduzindo assim a vida \u00fatil e o desempenho de processamento dessas pe\u00e7as. O uso de filtros de espuma cer\u00e2mica \u00e9 a maneira mais eficaz de remover impurezas heterog\u00eaneas da massa fundida de alum\u00ednio. Estudos demonstraram que o uso de filtros de espuma cer\u00e2mica para a filtragem de ligas de alum\u00ednio fundidas pode reduzir o teor de hidrog\u00eanio no alum\u00ednio fundido, ao mesmo tempo em que remove a esc\u00f3ria.<\/p>\n

Devido \u00e0 temperatura relativamente baixa das massas fundidas de alum\u00ednio e ligas de alum\u00ednio, a temperatura de uso dos filtros de espuma cer\u00e2mica de alumina tamb\u00e9m \u00e9 baixa. Desde que sejam atendidos os requisitos de uso, a ado\u00e7\u00e3o do processo de sinteriza\u00e7\u00e3o a baixa temperatura para a fabrica\u00e7\u00e3o desses filtros \u00e9 a op\u00e7\u00e3o economicamente mais vi\u00e1vel. Com o aumento das exig\u00eancias quanto \u00e0 qualidade dos produtos de alum\u00ednio, os requisitos para os filtros de espuma cer\u00e2mica de alumina tamb\u00e9m est\u00e3o se tornando cada vez mais rigorosos.<\/p>\n

\"\"<\/p>\n

O filtro de espuma cer\u00e2mica de alumina para ligas de alum\u00ednio \u00e9 composto por p\u00f3 cer\u00e2mico de alumina e s\u00edlica; em seguida, adicionam-se \u00e1lcool polivin\u00edlico, sol de s\u00edlica e \u00e1gua para preparar a pasta, e utiliza-se espuma de poliuretano macia como suporte para impregnar a pasta. A mistura \u00e9 prensada em uma pe\u00e7a bruta, seca e sinterizada para se obter um filtro de espuma cer\u00e2mica de alumina.<\/p>\n

AdTech filtro cer\u00e2mico de espuma de alumina<\/a> Para ligas de alum\u00ednio, apresenta boa estabilidade em altas temperaturas na massa fundida de liga de alum\u00ednio, n\u00e3o contamina a liga, possui boa capacidade de filtragem e adsor\u00e7\u00e3o de inclus\u00f5es oxidadas e de fluxo no metal fundido, al\u00e9m de proporcionar um bom efeito de filtragem e purifica\u00e7\u00e3o. Nenhuma pe\u00e7a do filtro de espuma se desprende sob o impacto da tens\u00e3o t\u00e9rmica entre 650 e 720 \u2103, o que pode reduzir efetivamente a contamina\u00e7\u00e3o do alum\u00ednio fundido e melhorar a qualidade da superf\u00edcie, o desempenho e a microestrutura de seus produtos.<\/p>","protected":false},"excerpt":{"rendered":"

In the past ten years, according to the characteristics of different alloys, ceramic foam filters of different materials have been developed at home and abroad…<\/p>","protected":false},"author":1,"featured_media":9865,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[20],"tags":[433,12347,89],"class_list":["post-9864","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ceramic-foam-filter","tag-alumina-ceramic-foam-filter","tag-filter-for-aluminum-alloys","tag-molten-aluminum-filter"],"yoast_head":"\nFilter for Aluminum Alloys, Alumina Ceramic Foam Filter<\/title>\n<meta name=\"description\" content=\"Filter for Aluminum Alloys adopts alumina ceramic foam filter, it has good filtering and adsorption capacity for oxidized inclusions.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link 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