{"id":11861,"date":"2021-12-17T07:13:16","date_gmt":"2021-12-17T07:13:16","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=11861"},"modified":"2021-12-17T07:13:16","modified_gmt":"2021-12-17T07:13:16","slug":"metal-casting-filters","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/pt\/metal-casting-filters\/","title":{"rendered":"Filtros para fundi\u00e7\u00e3o de metais"},"content":{"rendered":"<p>Os filtros de espuma cer\u00e2mica para fundi\u00e7\u00e3o de metais podem remover com efic\u00e1cia diversas inclus\u00f5es presentes na \u00e1gua de alum\u00ednio, com uma finura da ordem de micr\u00f4metros. O alum\u00ednio fundido assume um fluxo laminar suave, o que favorece a lavagem. Possui boa resist\u00eancia mec\u00e2nica e estabilidade qu\u00edmica, al\u00e9m de excelente resist\u00eancia \u00e0 lixivia\u00e7\u00e3o do alum\u00ednio. O tamanho dos orif\u00edcios e a taxa de orif\u00edcios de passagem, rigorosamente controlados, permitem obter um efeito de filtragem est\u00e1vel. H\u00e1 uma junta de fibra cer\u00e2mica vedante ao redor dos filtros de espuma cer\u00e2mica para fundi\u00e7\u00e3o de metais. Isso ajuda a vedar o filtro na caixa de filtragem, garantindo que n\u00e3o haja fluxo lateral de metal fundido.<\/p>\n<p>Ao utilizar um filtro de espuma cer\u00e2mica, o tamanho dos poros do filtro deve ser determinado de acordo com os requisitos de qualidade da pe\u00e7a fundida e o n\u00famero de inclus\u00f5es no metal fundido. O tamanho do filtro deve ser determinado com base na velocidade de vazamento e no peso da vazada.<\/p>\n<p>Para garantir o efeito de filtragem do filtro, a instala\u00e7\u00e3o do filtro e o projeto do sistema de controle de fluxo tamb\u00e9m devem seguir determinadas especifica\u00e7\u00f5es.<\/p>\n<p>O <a href=\"http:\/\/www.alalloycasting.com\/pt\/foam-ceramic-filter-for-casting\/\">filtro cer\u00e2mico de espuma para fundi\u00e7\u00e3o<\/a> consiste em mergulhar a esponja de poliuretano na pasta cer\u00e2mica, remover o excesso, secar e, por fim, sinterizar em alta temperatura para formar um material cer\u00e2mico poroso tridimensional.<\/p>\n<p>O filtro de espuma cer\u00e2mica para fundi\u00e7\u00e3o \u00e9 um tipo de filtro com poros interligados em zigue-zague. \u00c9 justamente essa parede irregular do tubo que desempenha um papel fundamental na captura de pequenas inclus\u00f5es no alum\u00ednio fundido. Essa estrutura tamb\u00e9m aumenta a \u00e1rea de contato entre o alum\u00ednio fundido e a parte cer\u00e2mica do filtro, aumentando assim a possibilidade de ades\u00e3o das part\u00edculas de inclus\u00e3o.<\/p>\n<p>Na pr\u00e1tica da produ\u00e7\u00e3o por fundi\u00e7\u00e3o, a efici\u00eancia de filtragem pode ser utilizada para avaliar o efeito de purifica\u00e7\u00e3o do filtro cer\u00e2mico de espuma fundida sobre a liga l\u00edquida fundida.<\/p>\n<p>No metal fundido da mesma fornada ou da mesma panela, s\u00e3o coletadas amostras da parte superior e inferior de cada pe\u00e7a fundida para determinar o grau de limpeza das pe\u00e7as fundidas filtradas e n\u00e3o filtradas. Utilize um microsc\u00f3pio \u00f3ptico e um microsc\u00f3pio eletr\u00f4nico de varredura para analisar a \u00e1rea de concentra\u00e7\u00e3o de inclus\u00f5es.<\/p>","protected":false},"excerpt":{"rendered":"<p>Metal casting ceramic foam filters can effectively remove various inclusions in the aluminum water with a fineness of micrometers. The molten aluminum becomes a smooth&hellip;<\/p>","protected":false},"author":1,"featured_media":11862,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[164,13060],"class_list":["post-11861","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-ceramic-foam-filter-for-aluminum-casting","tag-metal-casting-filters"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Metal Casting Filters, Ceramic Foam Filter for Aluminum Casting<\/title>\n<meta name=\"description\" content=\"Metal casting ceramic foam filters can effectively remove various inclusions in the aluminum water with a fineness of micrometers.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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