{"id":5490,"date":"2020-10-12T06:56:32","date_gmt":"2020-10-12T06:56:32","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=5490"},"modified":"2020-10-12T06:57:23","modified_gmt":"2020-10-12T06:57:23","slug":"aluminum-rotary-degassing","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/es\/aluminum-rotary-degassing\/","title":{"rendered":"Desgasificaci\u00f3n rotativa del aluminio"},"content":{"rendered":"<p>Dado que el arg\u00f3n es un gas inerte y no reacciona con el aluminio fundido, puede sustituir al hidr\u00f3geno presente en la masa fundida de aluminio, lo que reduce considerablemente el contenido de hidr\u00f3geno en dicha masa y mejora las propiedades mec\u00e1nicas de la aleaci\u00f3n de aluminio. El grado de porosidad del aluminio procesado mediante el m\u00e9todo de desgasificaci\u00f3n rotativa por soluci\u00f3n puede alcanzar el nivel 1 de la norma nacional.<\/p>\n<p>En la producci\u00f3n, para detectar r\u00e1pidamente el efecto de la eliminaci\u00f3n de hidr\u00f3geno del aluminio fundido, se suele utilizar el m\u00e9todo de comparaci\u00f3n del \u00edndice de densidad. Consiste en determinar la densidad \u03c1 verdadera de la muestra solidificada al vac\u00edo y la densidad \u03c1 positiva de la muestra solidificada al aire. \u00cdndice de densidad = (1 - \u03c1verdadera \/ \u03c1positiva) \u00d7 100. Por lo general, el \u00edndice de densidad del aluminio fundido para la fundici\u00f3n a presi\u00f3n es inferior a 1,5; el \u00edndice de densidad de la fundici\u00f3n a baja presi\u00f3n y la fundici\u00f3n por gravedad es inferior a 1, lo que se considera apto para el aluminio fundido.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5493\" src=\"http:\/\/alalloycasting.com\/wp-content\/uploads\/2020\/10\/Aluminum-Rotary-Degassing-1.jpg\" alt=\"Desgasificaci\u00f3n rotativa del aluminio\" width=\"400\" height=\"500\" srcset=\"https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/10\/Aluminum-Rotary-Degassing-1.jpg 400w, https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/10\/Aluminum-Rotary-Degassing-1-240x300.jpg 240w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><\/p>\n<h2>Desgasificaci\u00f3n rotativa del aluminio<\/h2>\n<p>En el proceso de desgasificaci\u00f3n rotativa del aluminio, cuantas m\u00e1s y m\u00e1s finas sean las burbujas de arg\u00f3n, mayor ser\u00e1 el \u00e1rea de contacto del aluminio fundido con las burbujas, menor ser\u00e1 la distancia de difusi\u00f3n de los \u00e1tomos de hidr\u00f3geno en el aluminio fundido, m\u00e1s tiempo permanecer\u00e1n las burbujas en el aluminio fundido y mejor ser\u00e1 el efecto de desgasificaci\u00f3n.<\/p>\n<p>Durante el <a href=\"http:\/\/www.alalloycasting.com\/es\/aluminum-refining\/\">refinado del aluminio<\/a> Durante el proceso, la boquilla de grafito gira y pulveriza en el fondo del aluminio fundido. Por un lado, esto favorece la acumulaci\u00f3n de peque\u00f1as inclusiones en el aluminio fundido dentro de la bolsa de transferencia. Por otro lado, la superficie del aluminio fundido se mantiene siempre estable. No se producen turbulencias violentas, se evita la mezcla con ox\u00edgeno y se reduce la formaci\u00f3n de inclusiones de \u00f3xido y la disoluci\u00f3n secundaria de hidr\u00f3geno.<\/p>\n<p>El arg\u00f3n es un gas inerte, no t\u00f3xico, ins\u00edpido, no contaminante y que no requiere equipos de tratamiento de gases residuales. La eliminaci\u00f3n de hidr\u00f3geno mediante arg\u00f3n consiste principalmente en extraer f\u00edsicamente el hidr\u00f3geno del aluminio fundido, y su uso no conlleva el riesgo de inclusiones de fundente. La espuma formada se expulsa del aluminio fundido en forma de burbujas. En comparaci\u00f3n con la purificaci\u00f3n con fundente, la formaci\u00f3n de escoria es m\u00ednima y no se generan gases t\u00f3xicos, lo que mejora considerablemente el entorno de trabajo y reduce el impacto medioambiental.<\/p>","protected":false},"excerpt":{"rendered":"<p>Since argon is an inert gas and does not react with molten aluminum, it can replace the hydrogen in the aluminum melt, greatly reducing the&hellip;<\/p>","protected":false},"author":1,"featured_media":5491,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[],"class_list":["post-5490","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>Aluminum Rotary Degassing by AdTech Degassing Unit<\/title>\n<meta name=\"description\" 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