{"id":7367,"date":"2021-01-06T08:35:46","date_gmt":"2021-01-06T08:35:46","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=7367"},"modified":"2021-01-06T08:35:46","modified_gmt":"2021-01-06T08:35:46","slug":"molten-metal-filter-unit","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/pt\/molten-metal-filter-unit\/","title":{"rendered":"Unidade de filtragem de metal fundido"},"content":{"rendered":"<p>A unidade de filtragem de metal fundido em linha possui um filtro de espuma cer\u00e2mica porosa instalado horizontalmente na caixa de filtragem. A caixa de filtragem possui uma entrada e uma sa\u00edda para o metal fundido. Durante a opera\u00e7\u00e3o do dispositivo, o metal \u00e9 fornecido pela entrada at\u00e9 cobrir completamente o filtro, e a sa\u00edda \u00e9 fechada, colocando a caixa sob v\u00e1cuo, de modo que o metal seja for\u00e7ado a passar pelo filtro na dire\u00e7\u00e3o da sa\u00edda. Em seguida, assim que o fluxo de metal come\u00e7a, \u00e9 criado um v\u00e1cuo e a sa\u00edda \u00e9 aberta para que o metal possa fluir atrav\u00e9s do filtro sob a for\u00e7a da gravidade. Portanto, o v\u00e1cuo \u00e9 utilizado apenas para induzir o metal a fluir atrav\u00e9s do filtro.<\/p>\n<p>A unidade de filtragem de metal fundido online inclui um inv\u00f3lucro met\u00e1lico ou um revestimento interno isolante t\u00e9rmico, feito de materiais isolantes e refrat\u00e1rios resistentes ao calor. Uma tampa remov\u00edvel est\u00e1 instalada na parte superior do recipiente para mant\u00ea-lo vedado durante a opera\u00e7\u00e3o do <a href=\"http:\/\/www.alalloycasting.com\/pt\/ceramic-foam-filter-for-foundry\/\">filtro de espuma cer\u00e2mica<\/a> (CFF). O recipiente possui uma entrada (a c\u00e2mara de entrada deve ser a menor poss\u00edvel) e uma c\u00e2mara de sa\u00edda com um filtro CFF instalado na c\u00e2mara de sa\u00edda.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-7346\" src=\"http:\/\/alalloycasting.com\/wp-content\/uploads\/2021\/01\/Ceramic-Foam-Filter-Use-1.jpg\" alt=\"Uso do filtro de espuma cer\u00e2mica\" width=\"500\" height=\"400\" srcset=\"https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2021\/01\/Ceramic-Foam-Filter-Use-1.jpg 500w, https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2021\/01\/Ceramic-Foam-Filter-Use-1-300x240.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/p>\n<p>O uso de filtros CFF acarreta custos adicionais. Esses custos est\u00e3o, em parte, relacionados ao pr\u00f3prio filtro, que geralmente precisa ser substitu\u00eddo ap\u00f3s cada opera\u00e7\u00e3o de fundi\u00e7\u00e3o. H\u00e1 tamb\u00e9m custos associados ao aquecimento do filtro CFF e da caixa do filtro.<\/p>\n<p>No caso de filtros com poros de tamanho pequeno (&gt;50 PPI (poros por polegada)), ativar o filtro inteiro durante a inicializa\u00e7\u00e3o e faz\u00ea-lo funcionar de maneira ideal tamb\u00e9m pode ser problem\u00e1tico. A ativa\u00e7\u00e3o de todo o filtro est\u00e1 geralmente relacionada ao pr\u00e9-aquecimento correto, mas tamb\u00e9m pode estar relacionada \u00e0 obten\u00e7\u00e3o de uma press\u00e3o suficientemente alta atrav\u00e9s da malha inicial do filtro.<\/p>\n<p>Antes das opera\u00e7\u00f5es de filtragem de metais, o pr\u00e9-aquecimento do filtro CFF e do recipiente do filtro \u00e9 muito importante. Isso pode ser feito por meio de um sistema de pr\u00e9-aquecimento pela abertura de entrada ou sa\u00edda, ou parte do pr\u00e9-aquecimento pode ser realizada na tampa do recipiente do filtro.<\/p>","protected":false},"excerpt":{"rendered":"<p>The online molten metal filter unit has a porous ceramic foam filter installed horizontally in the filter box. The filter box is provided with an&hellip;<\/p>","protected":false},"author":1,"featured_media":7368,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[],"class_list":["post-7367","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Molten Metal Filter Unit -sales@alalloycasting.com<\/title>\n<meta name=\"description\" content=\"The online molten metal filter unit has a porous ceramic foam filter installed horizontally in filter box. 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