{"id":5636,"date":"2020-10-16T02:45:51","date_gmt":"2020-10-16T02:45:51","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=5636"},"modified":"2020-10-16T02:45:51","modified_gmt":"2020-10-16T02:45:51","slug":"degassing-principle","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/es\/degassing-principle\/","title":{"rendered":"Principio de desgasificaci\u00f3n"},"content":{"rendered":"

El principio de desgasificaci\u00f3n var\u00eda seg\u00fan la unidad de desgasificaci\u00f3n. En la actualidad, los dos gases inertes que se utilizan habitualmente en el proceso de desgasificaci\u00f3n son el nitr\u00f3geno y el arg\u00f3n. El nitr\u00f3geno es un gas inerte puro y no reacciona con los \u00f3xidos. Adem\u00e1s, el nitr\u00f3geno es f\u00e1cil de producir a gran escala y su precio es una cuarta parte del del arg\u00f3n para el mismo volumen, lo que resulta econ\u00f3mico. Tambi\u00e9n es un gas de chorro de uso frecuente y ofrece buenos resultados.<\/p>\n

El principio de desgasificaci\u00f3n del sistema en l\u00ednea unidad de desgasificaci\u00f3n<\/a> consiste en inyectar el gas inerte com\u00fan N\u2082 en el aluminio fundido a trav\u00e9s del rotor giratorio de grafito para romper las grandes burbujas de nitr\u00f3geno en burbujas muy peque\u00f1as y dispersarlas en el metal fundido. Al reducirse el di\u00e1metro de las burbujas, la superficie del gas purificado aumenta considerablemente, lo que hace que la superficie de un mayor n\u00famero de burbujas entre en contacto con el hidr\u00f3geno y las impurezas presentes en el metal fundido. En la superficie de contacto entre la burbuja y el metal, debido a la diferencia de presi\u00f3n entre la presi\u00f3n del hidr\u00f3geno en el interior del metal l\u00edquido y la de la burbuja de nitr\u00f3geno en el metal, el hidr\u00f3geno se difunde hacia el interior de la burbuja seg\u00fan la ley de la presi\u00f3n parcial. La velocidad de difusi\u00f3n es muy r\u00e1pida al principio y se ralentiza gradualmente a medida que la presi\u00f3n del hidr\u00f3geno en la burbuja se aproxima a la del hidr\u00f3geno en el l\u00edquido. Cuando las burbujas de nitr\u00f3geno ascienden a la superficie del l\u00edquido, el hidr\u00f3geno se expulsa a la atm\u00f3sfera. El \u00e1rea de contacto y el tiempo de acci\u00f3n entre el nitr\u00f3geno y el metal l\u00edquido son factores importantes que influyen en el efecto de desgasificaci\u00f3n. Por lo tanto, para lograr un buen efecto de desgasificaci\u00f3n, es necesario que las burbujas de nitr\u00f3geno sean finas y uniformes mediante la rotaci\u00f3n del rotor.<\/p>\n

\"Principio<\/p>\n

Desde un punto de vista operativo, una varilla giratoria de transmisi\u00f3n est\u00e1 conectada a un conector giratorio para generar el movimiento giratorio de la varilla y del rotor. El conector giratorio tambi\u00e9n suministra gas de agitaci\u00f3n, y tanto la varilla de transmisi\u00f3n como la pieza de grafito cuentan con un orificio central que permite que el gas purificado pase a trav\u00e9s de \u00e9l y se pulverice sobre el metal l\u00edquido. El flujo de gas de agitaci\u00f3n se puede controlar, y el volumen del gas se puede ajustar en funci\u00f3n del volumen del metal l\u00edquido que se est\u00e9 procesando. La velocidad de la varilla giratoria y del rotor se puede ajustar para generar burbujas del tama\u00f1o adecuado y favorecer la difusi\u00f3n de los gases de agitaci\u00f3n.<\/p>","protected":false},"excerpt":{"rendered":"

The degassing principle is different for different degassing unit. At present, the two inert gases commonly used in the degassing process are nitrogen and argon.…<\/p>","protected":false},"author":1,"featured_media":5648,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[],"class_list":["post-5636","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"\nDegassing Principle of Aluminum Online Degassing Unit<\/title>\n<meta name=\"description\" content=\"The degassing principle of the online degassing unit is to blow the ordinary inert gas into the molten aluminum through the rotating rotor.\" \/>\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\/degassing-principle\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" 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