{"id":6568,"date":"2020-11-19T09:18:07","date_gmt":"2020-11-19T09:18:07","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=6568"},"modified":"2020-11-19T09:18:07","modified_gmt":"2020-11-19T09:18:07","slug":"on-line-degassing","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/es\/on-line-degassing\/","title":{"rendered":"Desgasificaci\u00f3n en l\u00ednea"},"content":{"rendered":"<p>En la actualidad, las funciones b\u00e1sicas de la desgasificaci\u00f3n en l\u00ednea son la desgasificaci\u00f3n, 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<p>La desgasificaci\u00f3n en l\u00ednea suele utilizar nitr\u00f3geno o arg\u00f3n como gas portador; adem\u00e1s, se puede a\u00f1adir cloro gaseoso 2-5% al gas portador para mejorar el efecto de la desgasificaci\u00f3n y la eliminaci\u00f3n de \u00e1lcalis.<br \/>\nEl 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.<\/p>\n<p>Sin embargo, a diferencia del proceso de refinado en el horno, el impulsor de rotor de grafito de alta velocidad del equipo de desgasificaci\u00f3n en l\u00ednea permite dividir 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 de la c\u00e1mara de desgasificaci\u00f3n, lo que aumenta considerablemente la superficie de las burbujas y mejora significativamente el efecto de desgasificaci\u00f3n por diferencia de presi\u00f3n parcial.<\/p>\n<p>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<p>Diferente<a href=\"http:\/\/www.alalloycasting.com\/es\/on-line-degassing-methods\/\"> m\u00e9todos de desgasificaci\u00f3n en l\u00ednea<\/a> tienen diferentes efectos de desgasificaci\u00f3n. En la actualidad, se utilizan habitualmente la desgasificaci\u00f3n en caja y la desgasificaci\u00f3n en canal. Entre ellos, el desgasificado en caja es el m\u00e1s habitual, con un funcionamiento estable y una alta eficiencia de desgasificado (la eficiencia espec\u00edfica de desgasificado est\u00e1 relacionada con el dise\u00f1o de la caja de desgasificado y el 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<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-6587\" src=\"http:\/\/alalloycasting.com\/wp-content\/uploads\/2020\/11\/On-line-Degassing.jpg\" alt=\"Desgasificaci\u00f3n en l\u00ednea\" width=\"400\" height=\"500\" srcset=\"https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/11\/On-line-Degassing.jpg 400w, https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/11\/On-line-Degassing-240x300.jpg 240w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><\/p>\n<p>La eliminaci\u00f3n de escoria en la fase de desgasificaci\u00f3n en l\u00ednea se realiza \u00fanicamente mediante adsorci\u00f3n. La escoria fina se adsorbe en las burbujas y flota en la superficie del aluminio fundido. Por lo tanto, es necesario limpiar peri\u00f3dicamente la escoria de aluminio acumulada en la c\u00e1mara de desgasificaci\u00f3n.<\/p>\n<p>La eliminaci\u00f3n de \u00e1lcalis en el proceso de desgasificaci\u00f3n en l\u00ednea se consigue principalmente mediante la adici\u00f3n de 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<p>La caja de desgasificaci\u00f3n tipo caja est\u00e1 equipada con un calentador de inmersi\u00f3n, que permite verter previamente el aluminio fundido en la caja 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 se puede ajustar 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":"<p>At present, the basic functions of on line degassing are degassing, slag removal, and alkali removal. In addition, it also has the function of adjusting&hellip;<\/p>","protected":false},"author":1,"featured_media":6588,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[],"class_list":["post-6568","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>On line Degassing Molten Aluminum by Degassing Unit<\/title>\n<meta name=\"description\" content=\"The basic functions of on line degassing are degassing, slag removal. 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