{"id":10601,"date":"2021-10-14T05:26:37","date_gmt":"2021-10-14T05:26:37","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=10601"},"modified":"2021-10-14T05:26:37","modified_gmt":"2021-10-14T05:26:37","slug":"fluxes-for-aluminum-refining","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/es\/fluxes-for-aluminum-refining\/","title":{"rendered":"Fundentes para la refinaci\u00f3n del aluminio"},"content":{"rendered":"

Cuando se utilizan fundentes para la refinaci\u00f3n del aluminio, estos se introducen a presi\u00f3n en el ba\u00f1o de fundido mediante una campana de vidrio, y las burbujas vol\u00e1tiles generadas por la descomposici\u00f3n t\u00e9rmica del fundente o por la reacci\u00f3n qu\u00edmica con el metal se aprovechan para lograr la deshidrogenaci\u00f3n.<\/p>\n

Cuanto m\u00e1s gas producen los fundentes de refinado de aluminio por el mismo peso, mejor es el efecto de desgasificaci\u00f3n. A igual peso, la cantidad de gas producida por el C2Cl6 es 1,5 veces mayor que la del MnCl2, por lo que el efecto de desgasificaci\u00f3n es bueno. Al refinar con C2Cl6, se producen muchas burbujas, no absorbe humedad, se necesita una peque\u00f1a cantidad y es barato. Es un agente de refinado y desgasificaci\u00f3n s\u00f3lido m\u00e1s eficaz. Sin embargo, durante su uso es necesario reforzar la ventilaci\u00f3n y la extracci\u00f3n de gases para evitar la contaminaci\u00f3n ambiental.<\/p>\n

En la producci\u00f3n industrial tambi\u00e9n se utilizan ampliamente diversos agentes de refinado no t\u00f3xicos. La mayor\u00eda de ellos son fundentes mixtos compuestos por oxidantes, como el sulfato o el nitrato, y carbono elemental, para generar CO, CO\u2082 y otras burbujas en la masa fundida.<\/p>\n

\"\"<\/p>\n

Con el fin de mejorar el efecto de refinado y reducir la intensidad de la reacci\u00f3n, tambi\u00e9n se a\u00f1aden diferentes proporciones de hexacloroetano, polvo de criolita, sal de mesa y ladrillos refractarios. Adem\u00e1s del efecto de refinado, el agente de refinado no t\u00f3xico tambi\u00e9n ejerce un cierto efecto metam\u00f3rfico sobre la aleaci\u00f3n de Al-Si; sin embargo, durante el refinado se produce m\u00e1s humo y polvo, m\u00e1s escoria y una mayor p\u00e9rdida de metal.<\/p>\n

Cuando la carga se ha fundido por completo en el ba\u00f1o de fusi\u00f3n y la temperatura del metal fundido alcanza la temperatura de fusi\u00f3n, se puede eliminar una gran cantidad de escoria oxidada que flota en la superficie del metal fundido.<\/p>\n

Antes de la fundici\u00f3n, se aplica una capa de polvo de fundente (producto de limpieza de escoria<\/a>) debe esparcirse uniformemente sobre la superficie del ba\u00f1o fundido para facilitar la separaci\u00f3n entre la escoria de oxidaci\u00f3n y el metal, agilizar la operaci\u00f3n de desescoriado y reducir la cantidad de metal arrastrado. La escoria debe retirarse con suavidad para evitar que se mezcle con el metal fundido. La eliminaci\u00f3n de la escoria debe ser exhaustiva, ya que la presencia de espuma aumentar\u00e1 el contenido de gas del metal fundido y podr\u00eda contaminar el metal.<\/p>","protected":false},"excerpt":{"rendered":"

When using the fluxes for aluminum refining, the fluxes are pressed into the molten pool with a bell jar, and the volatile bubbles generated by…<\/p>","protected":false},"author":1,"featured_media":10602,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[],"class_list":["post-10601","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"\nFluxes for Aluminum Refining -sales@alalloycasting.com<\/title>\n<meta name=\"description\" content=\"When using the fluxes for aluminum refining, the fluxes are pressed into the molten pool with a bell jar, and the volatile bubbles generated.\" \/>\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\/es\/fluxes-for-aluminum-refining\/\" \/>\n<meta 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