{"id":10704,"date":"2021-10-21T08:57:00","date_gmt":"2021-10-21T08:57:00","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=10704"},"modified":"2021-10-21T08:57:00","modified_gmt":"2021-10-21T08:57:00","slug":"foam-ceramic-filter-plates","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/pt\/foam-ceramic-filter-plates\/","title":{"rendered":"Placas de filtro de cer\u00e2mica com espuma"},"content":{"rendered":"<p>As placas filtrantes de espuma cer\u00e2mica s\u00e3o comumente utilizadas para a filtragem de alum\u00ednio l\u00edquido. Quando o alum\u00ednio fundido passa pelos poros do filtro de espuma cer\u00e2mica, as impurezas presentes nele s\u00e3o depositadas nas paredes dos poros sob a a\u00e7\u00e3o da press\u00e3o do fluido, in\u00e9rcia, intercepta\u00e7\u00e3o, colis\u00e3o, adsor\u00e7\u00e3o etc., de modo que o alum\u00ednio fundido limpo entre na placa de fluxo de fundi\u00e7\u00e3o e lamina\u00e7\u00e3o.<\/p>\n<p>A efici\u00eancia de filtragem do <a href=\"http:\/\/www.alalloycasting.com\/pt\/ceramic-foam-filter-plate\/\">placa de filtro de cer\u00e2mica com espuma<\/a>\u00a0est\u00e1 diretamente relacionado ao di\u00e2metro dos microporos, mas o di\u00e2metro dos res\u00edduos retidos \u00e9 muito menor do que o di\u00e2metro m\u00e9dio dos microporos. A placa filtrante com 12 orif\u00edcios\/cm e espessura de 50 mm \u00e9 capaz de remover res\u00edduos do tipo 80% e outros res\u00edduos com tamanho superior a 100 \u03bcm.<\/p>\n<p>Para melhorar a efici\u00eancia da filtragem, tamb\u00e9m \u00e9 poss\u00edvel utilizar, em primeiro lugar, uma malha de fibra de vidro para a filtragem grosseira e, em seguida, placas filtrantes de cer\u00e2mica espumada para a filtragem fina. As placas de cer\u00e2mica espumada s\u00e3o normalmente substitu\u00eddas uma vez por ciclo de aquecimento, a fim de garantir a capacidade de passagem do alum\u00ednio fundido e impedir que os detritos e as part\u00edculas de esc\u00f3ria depositadas nos canais voltem a entrar no alum\u00ednio fundido.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-10628\" src=\"http:\/\/alalloycasting.com\/wp-content\/uploads\/2021\/10\/Refractory-Ceramic-Foam-Filters.jpg\" alt=\"\" width=\"500\" height=\"400\" srcset=\"https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2021\/10\/Refractory-Ceramic-Foam-Filters.jpg 500w, https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2021\/10\/Refractory-Ceramic-Foam-Filters-300x240.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/p>\n<p>O m\u00e9todo de purifica\u00e7\u00e3o do alum\u00ednio fundido no forno consegue remover apenas o pr\u00f3prio alum\u00ednio e as impurezas, mas n\u00e3o consegue eliminar a polui\u00e7\u00e3o secund\u00e1ria do alum\u00ednio durante o processo de inje\u00e7\u00e3o. Ao mesmo tempo, como a \u00e1rea do forno \u00e9 grande e a profundidade do banho de fus\u00e3o \u00e9 rasa, \u00e9 dif\u00edcil distribuir o fluxo por todos os cantos do forno para purificar efetivamente todo o alum\u00ednio fundido. Portanto, no processo de fus\u00e3o e fundi\u00e7\u00e3o, geralmente \u00e9 utilizado o m\u00e9todo de tratamento de purifica\u00e7\u00e3o em linha fora do forno, de modo que o alum\u00ednio l\u00edquido entre em contato por convec\u00e7\u00e3o com o fluxo de g\u00e1s em um recipiente especial ap\u00f3s a sa\u00edda do forno ou do forno est\u00e1tico e, em seguida, flua para o molde de fundi\u00e7\u00e3o semicont\u00ednua ou para a fundi\u00e7\u00e3o cont\u00ednua. O bocal de alimenta\u00e7\u00e3o rolante garante que todo o alum\u00ednio fundido seja efetivamente purificado e evita a polui\u00e7\u00e3o secund\u00e1ria.<\/p>","protected":false},"excerpt":{"rendered":"<p>Foam ceramic filter plates are commonly used for aluminum liquid filtration. When the molten aluminum passes through the pores in the ceramic foam filter, the&hellip;<\/p>","protected":false},"author":1,"featured_media":10705,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[20],"tags":[],"class_list":["post-10704","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ceramic-foam-filter"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Foam Ceramic Filter Plates -sales@alalloycasting.com<\/title>\n<meta name=\"description\" content=\"Foam ceramic filter plates are used for aluminum liquid filtration. 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