{"id":12303,"date":"2022-01-17T08:41:27","date_gmt":"2022-01-17T08:41:27","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=12303"},"modified":"2022-03-10T03:56:44","modified_gmt":"2022-03-10T03:56:44","slug":"degassing-systems","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/es\/degassing-systems\/","title":{"rendered":"Sistemas de desgasificaci\u00f3n"},"content":{"rendered":"

Los sistemas de desgasificaci\u00f3n se utilizan en el refinado del aluminio fundido para eliminar el gas, y los sistemas de desgasificaci\u00f3n en l\u00ednea suelen incluir el uso de rotores giratorios para inyectar gas inerte. Los dispositivos de rotor suelen introducir un gas inerte en el metal fundido a trav\u00e9s de una serie de burbujas que el rotor puede cortar y dispersar en el metal fundido con el fin de saturarlo con el gas inerte. En los sistemas que no utilizan un estator, el gas puede inyectarse a trav\u00e9s del centro del eje giratorio del rotor. Sin embargo, en muchas aplicaciones se prefiere el uso de un estator por razones t\u00e9cnicas y de otro tipo.<\/p>\n

Desgasificaci\u00f3n con gas inerte<\/strong><\/p>\n

Normalmente se introduce un gas inerte en el metal fundido cerca del fondo, y las burbujas se dispersan y se dejan ascender hasta la superficie del metal fundido, desorbiendo el hidr\u00f3geno disuelto en el proceso. A\u00f1adir una peque\u00f1a cantidad de cloro puede ayudar a romper el enlace entre el aluminio fundido y las inclusiones, de modo que estas sean m\u00e1s propensas a adherirse a la parte ascendente de las burbujas y floten hasta la superficie del aluminio fundido. Se pueden a\u00f1adir cantidades adicionales de cloro al gas inerte para que reaccione qu\u00edmicamente con los metales alcalinos entrantes, como el sodio, el litio y el calcio, y forme sales de cloruro que tambi\u00e9n flotan hasta la superficie del aluminio fundido.<\/p>\n

A menudo, las inclusiones, las sales s\u00f3lidas y otros materiales que flotan en la superficie del material fundido forman lo que se conoce como escoria, que posteriormente puede retirarse de la superficie y eliminarse como residuo.<\/p>\n

\"Sistemas<\/p>\n

El sistema de desgasificaci\u00f3n de metales<\/a> A menudo es conveniente maximizar la saturaci\u00f3n del aluminio fundido con peque\u00f1as burbujas y mantener una superficie de fusi\u00f3n plana o tranquila para facilitar la flotaci\u00f3n de las inclusiones y las sales capturadas en dicha superficie. Alcanzar estos objetivos suele traducirse en una mejor separaci\u00f3n del aluminio fundido de la escoria. Hay muchos factores que influyen en la eficiencia de estos sistemas, como el dise\u00f1o del rotor, el caudal de gas, la planitud de la superficie del aluminio fundido, la geometr\u00eda de la c\u00e1mara del recipiente, etc.<\/p>\n

Algunos inyectores de la t\u00e9cnica anterior tratan de alcanzar el nivel de saturaci\u00f3n deseado utilizando un rotor giratorio<\/a> dentro de un estator est\u00e1tico, que est\u00e1 conectado de forma integral a la parte de la tobera. El rotor giratorio puede utilizarse para cortar y ayudar a dispersar las burbujas de aire y cualquier aditivo en el aluminio fundido. Para mantener la superficie del ba\u00f1o de fusi\u00f3n relativamente estacionaria, tambi\u00e9n es conveniente evitar los efectos de las corrientes par\u00e1sitas provocadas por la rotaci\u00f3n del rotor. Los efectos de las corrientes par\u00e1sitas tienden a causar da\u00f1os en la superficie, una mezcla parcial del material de la escoria con el aluminio fundido y, a menudo, interfieren en la eliminaci\u00f3n de gases e inclusiones no deseados.<\/p>","protected":false},"excerpt":{"rendered":"

Degassing systems are used in molten aluminum refining to remove gas, and in-line degassing systems typically include the use of rotating rotors to inject inert…<\/p>","protected":false},"author":1,"featured_media":12304,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[18],"tags":[13167,644],"class_list":["post-12303","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-degassing-unit","tag-degassing-systems","tag-molten-aluminum-refining"],"yoast_head":"\nDegassing Systems used in Molten Aluminum Refining<\/title>\n<meta name=\"description\" content=\"Degassing systems are used in molten aluminum refining to remove gas, and typically include the use of rotating rotors to inject inert gas.\" \/>\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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