{"id":5076,"date":"2020-09-25T06:18:10","date_gmt":"2020-09-25T06:18:10","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=5076"},"modified":"2020-09-25T06:18:10","modified_gmt":"2020-09-25T06:18:10","slug":"aluminum-refining-in-furnace","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/es\/aluminum-refining-in-furnace\/","title":{"rendered":"Refinado de aluminio en horno"},"content":{"rendered":"<p>En el refinado de aluminio en horno, existen tres m\u00e9todos de uso habitual: el refinado con gas inerte, el refinado con una mezcla de gas inerte y cloro gaseoso, y el refinado por pulverizaci\u00f3n de polvo. Otros m\u00e9todos incluyen el refinado con ladrillos ventilados en el horno o el refinado con un rotor de grafito en el horno. Debido a cuestiones de eficacia y coste, estos m\u00e9todos no se utilizan de forma generalizada.<\/p>\n<p>El refinado con gas mixto de nitr\u00f3geno-cloro o arg\u00f3n-cloro sigue utiliz\u00e1ndose en el refinado en horno en algunos procesos nacionales de fundici\u00f3n de aleaciones militares. Sin embargo, debido al estricto control sobre el uso del cloro, a los complejos procedimientos de aplicaci\u00f3n y a la existencia de riesgos de toxicidad y contaminaci\u00f3n, el uso generalizado del refinado con gas mixto est\u00e1 restringido. El refinado por pulverizaci\u00f3n de polvo consiste en mezclar un agente refinador granular con un gas inerte y, a continuaci\u00f3n, pulverizarlo sobre el aluminio fundido para llevar a cabo el refinado con fundente al tiempo que se realiza el refinado con gas inerte. Actualmente es el m\u00e9todo de refinado en horno m\u00e1s utilizado tanto a nivel nacional como internacional. Elimina el uso del agente refinador tradicional en bloques.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5125\" src=\"http:\/\/alalloycasting.com\/wp-content\/uploads\/2020\/09\/Aluminum-Refining-in-Furnace.jpg\" alt=\"Refinado de aluminio en horno\" width=\"500\" height=\"400\" srcset=\"https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/09\/Aluminum-Refining-in-Furnace.jpg 500w, https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/09\/Aluminum-Refining-in-Furnace-300x240.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/p>\n<p>El <a href=\"http:\/\/www.alalloycasting.com\/es\/refining-flux\/\">agente refinador<\/a> Adem\u00e1s, durante el proceso de refinado se introduce vapor de agua, lo que aumenta el contenido de hidr\u00f3geno, y el efecto final de desgasificaci\u00f3n es el resultado de un equilibrio din\u00e1mico. El contenido final de hidr\u00f3geno tras el refinado y la desgasificaci\u00f3n con el agente refinador pulverizado en el horno no es inferior a 0,22 ~ 0,26 ml por cada 100 g de aluminio. Dado que el agente de refinado contiene inevitablemente agua durante el proceso de producci\u00f3n, incluso el mejor agente de refinado actual contiene, como m\u00ednimo, 0,1% de agua, calculado seg\u00fan la recomendaci\u00f3n del agente de refinado de a\u00f1adir 1,5 kg por tonelada, el contenido de hidr\u00f3geno aportado por el agente de refinado por tonelada de aluminio es de 0,083 mol, lo que se convierte en un contenido est\u00e1ndar de 0,187 ml por cada 100 g de aluminio a\u00f1adido a la masa fundida de aluminio.<\/p>\n<p>El elevado contenido de hidr\u00f3geno en el alambr\u00f3n de aleaci\u00f3n de aluminio de alta resistencia propicia la aparici\u00f3n de defectos como burbujas, desprendimientos y extremos rotos en el proceso de trefilado posterior, y tambi\u00e9n afecta a la conductividad y a la resistencia a la tracci\u00f3n del alambr\u00f3n. Seg\u00fan la experiencia real en la producci\u00f3n de alambr\u00f3n de aleaci\u00f3n de aluminio de alta resistencia y los requisitos del proceso posterior, el contenido de hidr\u00f3geno en el alambr\u00f3n no debe superar los 0,14 ml por cada 100 g de aluminio. En el caso de requisitos especiales concretos, el contenido de hidr\u00f3geno no deber\u00e1 superar los 0,12 ml por cada 100 g de aluminio. Se observa que limitarse \u00fanicamente al refinado en horno dista mucho de satisfacer los requisitos de calidad de las varillas de aleaci\u00f3n de aluminio de alta resistencia. Para ello, se requieren m\u00e9todos de refinado en l\u00ednea.<\/p>","protected":false},"excerpt":{"rendered":"<p>Aluminum refining in furnace, there are three commonly used inert gas refining, mixed gas refining of inert gas plus chlorine gas, and powder spraying refining.&hellip;<\/p>","protected":false},"author":1,"featured_media":5124,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[],"class_list":["post-5076","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 Refining in Furnace | Flux Refining for Aluminum<\/title>\n<meta name=\"description\" content=\"Aluminum refining in furnace, there are three commonly used inert gas refining, mixed gas refining, and powder spraying refining.\" 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