{"id":10698,"date":"2021-10-21T06:24:26","date_gmt":"2021-10-21T06:24:26","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=10698"},"modified":"2021-10-21T06:24:26","modified_gmt":"2021-10-21T06:24:26","slug":"impurity-removal-in-metal-melt","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/es\/impurity-removal-in-metal-melt\/","title":{"rendered":"Eliminaci\u00f3n de impurezas en el metal fundido"},"content":{"rendered":"

Cuando se enfr\u00eda la masa fundida de aleaci\u00f3n de aluminio secundario, las impurezas no met\u00e1licas s\u00f3lidas se distribuyen en los l\u00edmites de grano, lo que reduce las propiedades mec\u00e1nicas de la aleaci\u00f3n. Para garantizar el rendimiento de la aleaci\u00f3n regenerada, es importante eliminar las impurezas de la masa fundida de metal de cara a la siguiente fundici\u00f3n.<\/p>\n

El m\u00e9todo de eliminaci\u00f3n de impurezas en el metal fundido<\/h2>\n

(1) El m\u00e9todo de filtrado consiste en hacer pasar la aleaci\u00f3n de aluminio fundida a trav\u00e9s del material filtrante para eliminar las impurezas. Cuando la aleaci\u00f3n fundida atraviesa el filtro, las part\u00edculas s\u00f3lidas quedan retenidas en \u00e9l.<\/p>\n

Filtros de espuma cer\u00e1mica<\/a> (CFF) se han utilizado ampliamente para filtrar las impurezas del aluminio fundido en las plantas de fundici\u00f3n. Con el aumento de la demanda de productos de aluminio de alta calidad, la filtraci\u00f3n del metal fundido mediante filtros de espuma cer\u00e1mica ha demostrado ser un m\u00e9todo \u00f3ptimo para mejorar la calidad del metal.<\/p>\n

\"Tecnolog\u00eda<\/p>\n

(2) El refinado con gas se lleva a cabo inyectando gas inerte en la escoria. Cuando el gas introducido se difunde en la masa fundida, el hidr\u00f3geno disuelto en el l\u00edquido de la aleaci\u00f3n se difunde hacia las peque\u00f1as burbujas del gas inyectado. Al mismo tiempo, tambi\u00e9n elimina los \u00f3xidos y otras impurezas insolubles. Al igual que en la flotaci\u00f3n, las inclusiones s\u00f3lidas tambi\u00e9n son adsorbidas por peque\u00f1as burbujas y, a continuaci\u00f3n, flotan hasta la superficie del ba\u00f1o fundido.<\/p>\n

El dispositivo de desgasificaci\u00f3n<\/a> Es un sistema de tratamiento de metal fundido respetuoso con el medio ambiente, que lleva a cabo la desgasificaci\u00f3n y la eliminaci\u00f3n de escoria de las aleaciones de aluminio. El dispositivo de desgasificaci\u00f3n utiliza el principio del impulsor y un rotor, genera peque\u00f1as burbujas de gas inerte y las mezcla con el metal fundido. Estas diminutas burbujas se distribuyen uniformemente por el metal fundido, lo que maximiza la superficie de contacto entre el gas y el metal fundido. El dispositivo de desgasificaci\u00f3n ofrece un mayor nivel de desgasificaci\u00f3n y eliminaci\u00f3n de escoria, y permite acortar el tiempo de procesamiento.<\/p>\n

(3) En el refinado de la sal se utilizan fundentes para eliminar el gas y las inclusiones no met\u00e1licas del metal fundido. Estos se introducen en el aluminio fundido en forma de fundente, generan haluro de aluminio gaseoso y se escapan.<\/p>\n

Flujo granular<\/a> Es una gama de fundentes respetuosos con el medio ambiente que se utilizan para el tratamiento del aluminio y las aleaciones de aluminio en estado fundido. Los fundentes en polvo presentan ciertas desventajas, como la generaci\u00f3n de polvo durante su aplicaci\u00f3n y la emisi\u00f3n de humos t\u00f3xicos. Esto supone un riesgo para la salud de los trabajadores y causa problemas medioambientales. Los fundentes en polvo tambi\u00e9n plantean un problema de eficiencia variable debido a la morfolog\u00eda del polvo. Para superar estas desventajas, se han desarrollado fundentes granulados que no generan polvo.<\/p>","protected":false},"excerpt":{"rendered":"

When the secondary aluminum alloy melt is cooled, the solid non-metallic impurity is distributed on the grain boundary, which will reduce the mechanical properties of…<\/p>","protected":false},"author":1,"featured_media":10699,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[],"class_list":["post-10698","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"\nImpurity Removal in Metal Melt, Filtration and Degassing Refining<\/title>\n<meta name=\"description\" content=\"In order to provide the performance of the regenerated alloy, impurity removal in the metal melt is important for the next casting.\" \/>\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\/impurity-removal-in-metal-melt\/\" 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