{"id":10489,"date":"2021-10-09T06:07:02","date_gmt":"2021-10-09T06:07:02","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=10489"},"modified":"2021-10-09T06:07:02","modified_gmt":"2021-10-09T06:07:02","slug":"aluminium-casting-ceramic-filters","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/pt\/aluminium-casting-ceramic-filters\/","title":{"rendered":"Filtros cer\u00e2micos para fundi\u00e7\u00e3o de alum\u00ednio"},"content":{"rendered":"

Os filtros cer\u00e2micos para fundi\u00e7\u00e3o de alum\u00ednio s\u00e3o utilizados para filtrar o alum\u00ednio fundido antes da fundi\u00e7\u00e3o. O processo de filtragem CFF permite remover part\u00edculas e melhorar o desempenho das pe\u00e7as fundidas.<\/p>\n

Os filtros cer\u00e2micos de espuma para fundi\u00e7\u00e3o de alum\u00ednio consistem em um material de espuma flex\u00edvel de c\u00e9lula aberta, de prefer\u00eancia hidrof\u00f3bico, com uma pluralidade de vazios interconectados, rodeados por uma malha de material de espuma flex\u00edvel.<\/p>\n

Entre os materiais tipicamente utilizados est\u00e3o as espumas polim\u00e9ricas, como a espuma de poliuretano e a espuma de celulose.<\/p>\n

De modo geral, qualquer espuma org\u00e2nica combust\u00edvel pode ser utilizada, desde que possua elasticidade e a capacidade de recuperar sua forma original. A espuma deve ser queimada ou volatilizada a uma temperatura inferior \u00e0 temperatura de queima do material cer\u00e2mico utilizado.<\/p>\n

Ao utilizar um filtro de espuma cer\u00e2mica, instale um filtro de disco cer\u00e2mico no Caixa de filtro CFF<\/a>. O alum\u00ednio fundido \u00e9 vertido no corpo do filtro por meio de um filtro de espuma cer\u00e2mica, que ret\u00e9m as part\u00edculas finas presentes no metal fundido. Ap\u00f3s a conclus\u00e3o da opera\u00e7\u00e3o de fundi\u00e7\u00e3o, a esc\u00f3ria de alum\u00ednio que permanece no filtro cer\u00e2mico forma um bloco de alum\u00ednio quase s\u00f3lido.<\/p>\n

O filtro de espuma cer\u00e2mica \u00e9 capaz de remover um grande n\u00famero de inclus\u00f5es do alum\u00ednio fundido. A tecnologia de filtragem por espuma cer\u00e2mica tornou-se o principal m\u00e9todo comercial de filtragem de ligas de alum\u00ednio em todo o mundo. Devido aos seus baixos custos de instala\u00e7\u00e3o e opera\u00e7\u00e3o, al\u00e9m da facilidade de uso, a tecnologia se disseminou rapidamente por fundi\u00e7\u00f5es de alum\u00ednio de v\u00e1rios tipos e n\u00edveis de complexidade.<\/p>\n

A placa filtrante de espuma cer\u00e2mica \u00e9 capaz de filtrar com efic\u00e1cia as grandes inclus\u00f5es presentes no alum\u00ednio fundido, absorver as pequenas inclus\u00f5es, refinar a estrutura cristalina da pe\u00e7a fundida e reduzir o teor de hidrog\u00eanio no alum\u00ednio fundido. O teor dos elementos nocivos Na e K no alum\u00ednio fundido \u00e9 removido por adsor\u00e7\u00e3o.<\/p>\n

O m\u00e9todo de filtragem \u00e9 simples. As placas filtrantes de cer\u00e2mica espumosa s\u00e3o produzidas de forma padronizada e em s\u00e9rie. De acordo com os requisitos de qualidade e vaz\u00e3o do alum\u00ednio fundido, \u00e9 poss\u00edvel obter diferentes efeitos de filtragem utilizando placas filtrantes com orif\u00edcios de tamanhos variados (20-60 ppi) e combina\u00e7\u00f5es dessas placas.<\/p>","protected":false},"excerpt":{"rendered":"

Aluminium Casting Ceramic Filters are used to filter molten aluminum before casting. The CFF filtration process can remove particles and enhance the performance of metal…<\/p>","protected":false},"author":1,"featured_media":10490,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[],"class_list":["post-10489","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"\nAluminium Casting Ceramic Filters -sales@alalloycasting.com<\/title>\n<meta name=\"description\" content=\"Aluminium Casting Ceramic Filters are used to filter molten aluminum before casting. 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