{"id":5526,"date":"2020-10-14T05:40:54","date_gmt":"2020-10-14T05:40:54","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=5526"},"modified":"2020-10-14T05:40:54","modified_gmt":"2020-10-14T05:40:54","slug":"online-degassing-aluminum","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/es\/online-degassing-aluminum\/","title":{"rendered":"Desgasificaci\u00f3n en l\u00ednea del aluminio"},"content":{"rendered":"

En la actualidad, las funciones b\u00e1sicas del desgasificado en l\u00ednea del aluminio son el desgasificado, la eliminaci\u00f3n de escoria y la eliminaci\u00f3n de \u00e1lcalis. Adem\u00e1s, tambi\u00e9n permite ajustar el equilibrio t\u00e9rmico del aluminio fundido en el canal de colada.<\/p>\n

Principio de desgasificaci\u00f3n<\/strong><\/p>\n

Desgasificaci\u00f3n en l\u00ednea<\/a> En el caso del aluminio, se suele utilizar nitr\u00f3geno o arg\u00f3n como gas portador para la desgasificaci\u00f3n, y tambi\u00e9n es posible a\u00f1adir cloro gaseoso al gas portador para mejorar el efecto de la desgasificaci\u00f3n y la eliminaci\u00f3n de \u00e1lcalis.<\/p>\n

El principio de desgasificaci\u00f3n en l\u00ednea es coherente con el principio b\u00e1sico de refinado y desgasificaci\u00f3n en el horno. La desgasificaci\u00f3n sigue produci\u00e9ndose mediante la diferencia de presi\u00f3n parcial y una reacci\u00f3n qu\u00edmica. Sin embargo, a diferencia del refinado en el horno, el impulsor de rotor de grafito de alta velocidad del equipo de desgasificaci\u00f3n en l\u00ednea es capaz de fragmentar las burbujas en numerosas burbujas peque\u00f1as y dispersas. Estas peque\u00f1as burbujas se distribuir\u00e1n de forma m\u00e1s uniforme en el espacio limitado del equipo de desgasificaci\u00f3n, lo que aumenta considerablemente la superficie de las burbujas y mejora significativamente el efecto de desgasificaci\u00f3n producido por la diferencia de presi\u00f3n parcial.<\/p>\n

Si se a\u00f1ade cloro al gas portador, el efecto de desgasificaci\u00f3n ser\u00e1 m\u00e1s eficaz y la eliminaci\u00f3n de \u00e1lcalis mejorar\u00e1 considerablemente. El cloro gaseoso es altamente t\u00f3xico y presenta riesgos potenciales para la seguridad, por lo que requiere una gesti\u00f3n y un uso rigurosos.<\/p>\n

Los distintos m\u00e9todos de desgasificaci\u00f3n en l\u00ednea presentan diferentes resultados. En la actualidad, se utilizan habitualmente la desgasificaci\u00f3n en caja y la desgasificaci\u00f3n en canal. De entre ellas, la desgasificaci\u00f3n en caja es la m\u00e1s habitual, ya que ofrece un funcionamiento estable y una alta eficiencia de desgasificaci\u00f3n. La eficiencia de desgasificaci\u00f3n depende del dise\u00f1o de la caja de desgasificaci\u00f3n y del contenido inicial de hidr\u00f3geno (generalmente entre 35 y 70%), pero la inversi\u00f3n inicial y los costes de funcionamiento son relativamente elevados.<\/p>\n

\"Desgasificaci\u00f3n<\/p>\n

Principio de la desescoriado<\/strong><\/p>\n

La eliminaci\u00f3n de escoria en la fase de desgasificaci\u00f3n en l\u00ednea consiste \u00fanicamente en un proceso independiente de adsorci\u00f3n y eliminaci\u00f3n de escoria. La escoria de tama\u00f1o min\u00fasculo se adsorbe en las burbujas y flota en la superficie del aluminio fundido, por lo que es necesario limpiar peri\u00f3dicamente la escoria de aluminio acumulada en la c\u00e1mara de desgasificaci\u00f3n.<\/p>\n

Principio de la eliminaci\u00f3n de \u00e1lcalis<\/strong><\/p>\n

La eliminaci\u00f3n de \u00e1lcalis en el desgasificado en l\u00ednea se consigue principalmente a\u00f1adiendo cloro gaseoso al gas portador. El arg\u00f3n puro no tiene ning\u00fan efecto de eliminaci\u00f3n de \u00e1lcalis, mientras que el nitr\u00f3geno tiene un efecto de eliminaci\u00f3n m\u00e1s d\u00e9bil sobre los metales alcalinos individuales.<\/p>\n

El tipo caja unidad de desgasificaci\u00f3n<\/a> Est\u00e1 equipada con un calentador de inmersi\u00f3n, que permite verter previamente el aluminio fundido en la unidad de desgasificaci\u00f3n para aumentar la temperatura y evitar los riesgos para la seguridad y la calidad derivados de la baja temperatura del aluminio fundido en la fase inicial de la fundici\u00f3n. Durante el proceso de producci\u00f3n, la temperatura del aluminio fundido tambi\u00e9n puede ajustarse encendiendo y apagando el calentador de la caja de desgasificaci\u00f3n, con el fin de mantener la estabilidad de la temperatura del aluminio fundido durante el proceso de fundici\u00f3n.<\/p>","protected":false},"excerpt":{"rendered":"

At present, the basic functions of online degassing aluminum are degassing, slag removal, and alkali removal. In addition, it also has the function of adjusting…<\/p>","protected":false},"author":1,"featured_media":5528,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[138],"tags":[],"class_list":["post-5526","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-seo"],"yoast_head":"\nOnline Degassing Aluminum by AdTech Degassing Unit<\/title>\n<meta name=\"description\" content=\"The basic functions of online degassing aluminum are degassing, slag removal, and alkali removal. It also can adjust the heat balance.\" \/>\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\/online-degassing-aluminum\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Online Degassing Aluminum by AdTech Degassing Unit\" \/>\n<meta property=\"og:description\" content=\"The basic functions of online degassing aluminum are degassing, slag removal, and alkali removal. 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