{"id":8242,"date":"2021-03-31T03:48:47","date_gmt":"2021-03-31T03:48:47","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=8242"},"modified":"2021-03-31T03:48:47","modified_gmt":"2021-03-31T03:48:47","slug":"drossing-fluxes-for-aluminum","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/pt\/drossing-fluxes-for-aluminum\/","title":{"rendered":"Fluxos de esc\u00f3ria para alum\u00ednio"},"content":{"rendered":"

Os fluxos de desimpureza para alum\u00ednio s\u00e3o utilizados no processo de reciclagem do alum\u00ednio para melhorar a pureza do alum\u00ednio fundido.<\/p>\n

Sabe-se que o uso de fluxo para fundi\u00e7\u00e3o de alum\u00ednio na ind\u00fastria de alum\u00ednio secund\u00e1rio pode melhorar a taxa de recupera\u00e7\u00e3o direta do alum\u00ednio durante o processo de refundi\u00e7\u00e3o. O alum\u00ednio e a sucata de alum\u00ednio, como embalagens de bebidas usadas (UBC), s\u00e3o processados dessa forma. A refundi\u00e7\u00e3o do alum\u00ednio no forno \u00e9 realizada sob uma camada de sal fundido para impedir que o alum\u00ednio se oxide na atmosfera do forno e promover a coalesc\u00eancia do alum\u00ednio fundido, maximizando assim a taxa de recupera\u00e7\u00e3o do alum\u00ednio.<\/p>\n

Durante o processamento, tende a se formar uma pel\u00edcula de \u00f3xido na superf\u00edcie da gota de alum\u00ednio fundido. Essa pel\u00edcula de \u00f3xido inibe a coalesc\u00eancia do alum\u00ednio fundido, resultando na perda de part\u00edculas menores durante o processo e, consequentemente, na redu\u00e7\u00e3o da quantidade de alum\u00ednio recuperado. As got\u00edculas de alum\u00ednio n\u00e3o recuper\u00e1veis com pel\u00edculas de \u00f3xido s\u00e3o, por vezes, chamadas de esc\u00f3ria.<\/p>\n

Os fluxos de remo\u00e7\u00e3o de esc\u00f3ria para o alum\u00ednio no forno ajudam a descascar e suspender a pel\u00edcula de \u00f3xido, aumentando assim a coalesc\u00eancia das got\u00edculas e reduzindo a forma\u00e7\u00e3o de esc\u00f3ria. O fluxo salino umedece a pel\u00edcula de \u00f3xido e inicia sua desintegra\u00e7\u00e3o, descascando-a da superf\u00edcie da gota de alum\u00ednio fundido. Os fragmentos da pel\u00edcula de \u00f3xido desprendidos do alum\u00ednio permanecem suspensos no fluxo. As got\u00edculas de alum\u00ednio com densidade superior \u00e0 do fluxo formam, ent\u00e3o, uma camada fundida cont\u00ednua sob a camada de fluxo. O fluxo tamb\u00e9m impede a forma\u00e7\u00e3o de mais \u00f3xido, isolando o metal da atmosfera do forno.<\/p>\n

Um tipo de fluxo para fundi\u00e7\u00e3o de alum\u00ednio<\/a> \u00e9 composto principalmente por uma mistura de cloreto de s\u00f3dio e cloreto de pot\u00e1ssio de alta pureza. O sal de alta pureza utilizado nesse tipo de processo \u00e9 extra\u00eddo e purificado da solu\u00e7\u00e3o por meio de m\u00e9todos complexos e altamente desenvolvidos. O m\u00e9todo de refino por fluxo visa aumentar a recupera\u00e7\u00e3o de alum\u00ednio em um processo de refundi\u00e7\u00e3o.<\/p>","protected":false},"excerpt":{"rendered":"

Drossing fluxes for aluminum are used in the aluminum recycling process to improve the purity of molten aluminum. It is known that the use of…<\/p>","protected":false},"author":1,"featured_media":8243,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[120],"tags":[],"class_list":["post-8242","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-fluxes"],"yoast_head":"\nDrossing Fluxes for Aluminum -sales@alalloycasting.com<\/title>\n<meta name=\"description\" content=\"Drossing fluxes for aluminum help to strip and suspend the oxide film, thereby increasing the coalescence of droplets and reducing slag.\" \/>\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\/drossing-fluxes-for-aluminum\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" 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