{"id":7059,"date":"2020-12-17T07:02:40","date_gmt":"2020-12-17T07:02:40","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=7059"},"modified":"2020-12-17T07:02:40","modified_gmt":"2020-12-17T07:02:40","slug":"molten-aluminum-refining-process","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/pt\/molten-aluminum-refining-process\/","title":{"rendered":"Processo de refino de alum\u00ednio fundido"},"content":{"rendered":"<p>Metais fundidos, como o alum\u00ednio e as ligas de alum\u00ednio, removem impurezas durante o processo de refino. Em um processo de purifica\u00e7\u00e3o conhecido, o alum\u00ednio \u00e9 fundido em um forno e, em seguida, transferido para uma m\u00e1quina de fundi\u00e7\u00e3o para a conforma\u00e7\u00e3o do metal. O alum\u00ednio \u00e9 geralmente transferido do forno para a m\u00e1quina de fundi\u00e7\u00e3o por meio do<a href=\"http:\/\/www.alalloycasting.com\/pt\/casting-launder-2\/\"> canal de fundi\u00e7\u00e3o<\/a>. O alum\u00ednio fundido entra na ranhura pela entrada e sai pela sa\u00edda de maneira cont\u00ednua ao longo da ranhura.<\/p>\n<p>Em muitos casos, a conex\u00e3o do canal de alimenta\u00e7\u00e3o inclui componentes de desgaseifica\u00e7\u00e3o e filtros projetados para remover impurezas do alum\u00ednio fundido. Algumas dessas impurezas incluem hidrog\u00eanio dissolvido, part\u00edculas (como \u00f3xidos, carbonetos, boretos, \u00f3xido de alum\u00ednio e \u00f3xido de magn\u00e9sio) e v\u00e1rios outros elementos (como metais alcalinos dissolvidos (Na), l\u00edtio (Li) e c\u00e1lcio (Ca)). Essas impurezas podem afetar negativamente o desempenho do produto acabado durante o processo de fundi\u00e7\u00e3o.<\/p>\n<p>O processo de refino do metal fundido normalmente utiliza um mecanismo de inje\u00e7\u00e3o de fluxo configurado para introduzir o fluxo no alum\u00ednio fundido. Geralmente, o fluxo inclui cloro ou uma mistura de cloro e um g\u00e1s inerte, como o arg\u00f4nio. Quando combinado, o fluxo ajuda a remover impurezas do alum\u00ednio fundido. O fluxo \u00e9 um <a href=\"http:\/\/www.alalloycasting.com\/pt\/granular-refining-agent\/\">agente de refino granular<\/a> ou o agente refinador em p\u00f3 comercializado pela AdTech. O g\u00e1s cloro e os sais de cloreto podem converter eficazmente os metais alcalinos em sais, que podem se aglomerar sob a a\u00e7\u00e3o de aditivos e subir \u00e0 superf\u00edcie dos materiais fundidos.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-7062\" src=\"http:\/\/alalloycasting.com\/wp-content\/uploads\/2020\/12\/Molten-Aluminum-Refining-Process.jpg\" alt=\"Processo de refino de alum\u00ednio fundido\" width=\"500\" height=\"400\" srcset=\"https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/12\/Molten-Aluminum-Refining-Process.jpg 500w, https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/12\/Molten-Aluminum-Refining-Process-300x240.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/p>\n<p>Mais especificamente, o hidrog\u00eanio se difunde nas bolhas inertes e \u00e9 removido \u00e0 medida que as part\u00edculas ao redor das bolhas se aglutinam e sobem at\u00e9 a superf\u00edcie da liga de alum\u00ednio fundida. O fundente e as impurezas podem formar esc\u00f3ria ou res\u00edduos, que s\u00e3o regularmente removidos ou retidos no <a href=\"http:\/\/www.alalloycasting.com\/pt\/ceramic-foam-filter-for-molten-al\/\">filtro de espuma cer\u00e2mica<\/a> a jusante. Normalmente, o cloro ou o sal de cloro s\u00e3o removidos junto com a espuma. No entanto, devido aos danos ambientais e ao \u00f4nus do descarte do g\u00e1s cloro, o uso desse g\u00e1s deve ser reduzido nessas aplica\u00e7\u00f5es.<\/p>\n<p>Os m\u00e9todos de refino de alum\u00ednio fundido e ligas utilizam v\u00e1rias c\u00e2maras que incluem pelo menos um distribuidor com um eixo rotativo alongado conectado a um impulsor. Quando o fluxo \u00e9 descarregado atrav\u00e9s do eixo rotativo e distribu\u00eddo na c\u00e2mara pelo impulsor, o impulsor est\u00e1 adaptado para girar no alum\u00ednio fundido. O impulsor e o eixo rotativo s\u00e3o utilizados especificamente para distribuir o fluxo na liga fundida de maneira adequada, de modo que o fluxo seja amplamente distribu\u00eddo na liga fundida, interagindo quimicamente com uma alta porcentagem das impurezas presentes nela, utilizando-se, ao mesmo tempo, o m\u00ednimo poss\u00edvel de g\u00e1s cloro ou sal. As impurezas, ent\u00e3o, sobem \u00e0 superf\u00edcie da liga de alum\u00ednio fundida e podem ser removidas.<\/p>","protected":false},"excerpt":{"rendered":"<p>Molten metals such as aluminum and aluminum alloys remove impurities during the refining process. In a known purification process, aluminum is melted in a furnace&hellip;<\/p>","protected":false},"author":1,"featured_media":7061,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[],"class_list":["post-7059","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 Aluminum Refining Process with Refining Flux<\/title>\n<meta name=\"description\" content=\"The molten metal refining process typically utilizes a flux injection mechanism that is configured to introduce flux into molten aluminum.\" \/>\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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