{"id":4018,"date":"2020-08-22T14:36:25","date_gmt":"2020-08-22T14:36:25","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=4018"},"modified":"2020-08-22T14:36:25","modified_gmt":"2020-08-22T14:36:25","slug":"aluminum-melt-refining","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/es\/aluminum-melt-refining\/","title":{"rendered":"Refinado de aluminio fundido"},"content":{"rendered":"<p>El refinado del aluminio fundido consiste en eliminar los gases y las inclusiones del metal fundido y uniformar la composici\u00f3n de la aleaci\u00f3n. El refinado es un proceso muy importante en la fundici\u00f3n del aluminio. El <a href=\"http:\/\/www.alalloycasting.com\/es\/refining-flux\/\">fundente de refinado <\/a>Debe seleccionarse correctamente y debe controlarse su dosificaci\u00f3n para aumentar la calidad de la aleaci\u00f3n entre 0,5% y 0,7%. Es importante controlar la temperatura de refinado, que suele situarse entre 700 y 720 \u2103.<\/p>\n<p>Durante el proceso de refinado del aluminio fundido, aproximadamente dos tercios del fundente de refinado se introducen en la superficie del metal fundido por lotes, utilizando una cubierta con forma de campana, y a continuaci\u00f3n se gira lentamente y de manera uniforme en el sentido de las agujas del reloj. La velocidad debe ser lenta y el movimiento debe ser estable para evitar un desplazamiento excesivo del metal fundido y prevenir as\u00ed el aumento de hidr\u00f3geno.<\/p>\n<p>El refinado de aleaciones de aluminio es un proceso muy importante en la producci\u00f3n de piezas de fundici\u00f3n. Muchos a\u00f1os de experiencia en la producci\u00f3n han demostrado que, si el proceso de fundici\u00f3n no se controla de forma rigurosa, las piezas de fundici\u00f3n son propensas a presentar poros, escoria oxidada, inclusiones, cavidades por contracci\u00f3n y otros defectos que afectan directamente a la calidad de las mismas.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-4019\" src=\"http:\/\/alalloycasting.com\/wp-content\/uploads\/2020\/08\/Aluminum-Melt-Refining-1.jpg\" alt=\"Refinado de aluminio fundido\" width=\"500\" height=\"400\" srcset=\"https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/08\/Aluminum-Melt-Refining-1.jpg 500w, https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/08\/Aluminum-Melt-Refining-1-300x240.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/p>\n<p>El horno de precalentamiento se llena con lingotes de aleaci\u00f3n preformados y materiales de calentamiento de alta calidad, y finalmente se a\u00f1aden los elementos de aleaci\u00f3n. El fundente de recubrimiento, el fundente de refinado y el modificador de Sr se utilizan de acuerdo con las especificaciones del proceso establecidas.<\/p>\n<p>Controla rigurosamente la temperatura de fusi\u00f3n de la aleaci\u00f3n de aluminio. Solo a la temperatura adecuada se puede obtener una aleaci\u00f3n l\u00edquida de alta calidad y evitar el sobrecalentamiento. Si la temperatura es demasiado alta, aumentar\u00e1n las p\u00e9rdidas por oxidaci\u00f3n y combusti\u00f3n de diversos elementos de la aleaci\u00f3n, y se alterar\u00e1 su composici\u00f3n qu\u00edmica. Si la temperatura es demasiado baja, la composici\u00f3n qu\u00edmica de la aleaci\u00f3n no ser\u00e1 uniforme, las inclusiones de \u00f3xido y los gases presentes en la aleaci\u00f3n no se eliminar\u00e1n f\u00e1cilmente y el rendimiento de la aleaci\u00f3n se ver\u00e1 reducido, lo que afectar\u00e1 al rendimiento de la fundici\u00f3n.<\/p>\n<p>Un control estricto del tiempo de fundici\u00f3n y una operaci\u00f3n r\u00e1pida pueden reducir la absorci\u00f3n de impurezas y las inclusiones por oxidaci\u00f3n, aumentar la p\u00e9rdida por combusti\u00f3n de los elementos de la aleaci\u00f3n y afectar a la composici\u00f3n qu\u00edmica de la misma.<\/p>","protected":false},"excerpt":{"rendered":"<p>Aluminum melt refining is to remove gas and inclusion in melt and make alloy composition uniform. Refining is a very important process in aluminum smelting&hellip;<\/p>","protected":false},"author":1,"featured_media":4020,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[4498],"class_list":["post-4018","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-aluminum-melt-refining"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Aluminum Melt Refining in Aluminum Alloy Smelting Process<\/title>\n<meta name=\"description\" content=\"Aluminum melt refining in aluminum alloy smelting process is to remove gas and inclusion in melt and make alloy composition uniform.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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