{"id":8289,"date":"2021-03-31T06:17:19","date_gmt":"2021-03-31T06:17:19","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=8289"},"modified":"2021-03-31T06:17:19","modified_gmt":"2021-03-31T06:17:19","slug":"porous-refractory-filter","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/pt\/porous-refractory-filter\/","title":{"rendered":"Filtro refrat\u00e1rio poroso"},"content":{"rendered":"<p>O metal fundido flui por uma s\u00e9rie de etapas de purifica\u00e7\u00e3o integradas e dispostas sucessivamente, incluindo uma etapa de remo\u00e7\u00e3o de esc\u00f3ria, na qual esta \u00e9 separada do metal fundido por meio de filtros refrat\u00e1rios tecidos, removendo assim as impurezas particuladas de maior tamanho do metal fundido. A etapa de fundi\u00e7\u00e3o remove o hidrog\u00eanio met\u00e1lico arrastado e dissolvido do metal fundido, seguida por uma etapa de adsor\u00e7\u00e3o e uma etapa final de filtra\u00e7\u00e3o, na qual o metal fundido passa por m\u00faltiplas placas refrat\u00e1rias que adsorvem as impurezas. A etapa de filtra\u00e7\u00e3o final, na qual o metal fundido \u00e9 filtrado por meio de um meio filtrante refrat\u00e1rio r\u00edgido e poroso para remover part\u00edculas mais finas.<\/p>\n<p>Em um tipo de opera\u00e7\u00e3o convencional de fundi\u00e7\u00e3o cont\u00ednua, o alum\u00ednio ou uma liga dele \u00e9 fundido em um forno e transferido, por meio de outros recipientes, para o distribuidor de vazamento de uma m\u00e1quina de fundi\u00e7\u00e3o cont\u00ednua. No alum\u00ednio fundido est\u00e3o presentes \u00f3xidos de outros metais que existem como impurezas, \u00f3xidos n\u00e3o met\u00e1licos e outros contaminantes s\u00f3lidos na forma de part\u00edculas, tais como, por exemplo, part\u00edculas finamente divididas de \u00f3xido de alum\u00ednio que se formam na superf\u00edcie do alum\u00ednio fundido.<\/p>\n<p>Al\u00e9m disso, os produtos gasosos, particularmente o g\u00e1s hidrog\u00eanio gerado pela rea\u00e7\u00e3o do alum\u00ednio fundido com a umidade presente nos diversos recept\u00e1culos do sistema e no ambiente circundante, s\u00e3o comumente retidos ou dissolvidos no alum\u00ednio fundido. Se n\u00e3o forem removidos do metal fundido antes da fundi\u00e7\u00e3o, tanto as part\u00edculas quanto os produtos gasosos podem contribuir para a forma\u00e7\u00e3o de vazios e inclus\u00f5es indesej\u00e1veis no metal fundido.<\/p>\n<p>Quando o metal fundido \u00e9 posteriormente trabalhado para produzir um produto final, como barras e fios formados continuamente, as inclus\u00f5es e os vazios frequentemente causam defeitos que resultam em quebras e fissuras no produto trabalhado, propriedades mec\u00e2nicas insatisfat\u00f3rias e uma redu\u00e7\u00e3o da condutividade el\u00e9trica do produto final.<\/p>\n<p><a href=\"http:\/\/www.alalloycasting.com\/pt\/alumina-ceramic-foam-filter\/\">Filtro de espuma cer\u00e2mica de alumina<\/a> O filtro cer\u00e2mico para fundi\u00e7\u00e3o de alum\u00ednio desempenha um papel muito importante no sistema de purifica\u00e7\u00e3o do alum\u00ednio l\u00edquido. Trata-se de um filtro refrat\u00e1rio poroso. O filtro cer\u00e2mico para fundi\u00e7\u00e3o \u00e9 capaz de remover com efic\u00e1cia as grandes inclus\u00f5es presentes no alum\u00ednio l\u00edquido e reduzir significativamente o tamanho das microinclus\u00f5es, melhorando a qualidade da superf\u00edcie e o desempenho do produto.<\/p>","protected":false},"excerpt":{"rendered":"<p>The molten metal flows through a series of successively arranged integrated purification stages, including a slag removal stage, in which it is removed from the&hellip;<\/p>","protected":false},"author":1,"featured_media":8290,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[],"class_list":["post-8289","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>Porous Refractory Filter,Alumina Ceramic Foam Filter<\/title>\n<meta name=\"description\" content=\"Alumina ceramic foam filter plays a very important role in the aluminum liquid purification system. It is a porous refractory filter.\" \/>\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\/porous-refractory-filter\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Porous Refractory Filter,Alumina Ceramic Foam Filter\" \/>\n<meta property=\"og:description\" content=\"Alumina ceramic foam filter plays a very important role in the aluminum liquid purification system. 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