{"id":4496,"date":"2020-09-04T07:37:35","date_gmt":"2020-09-04T07:37:35","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=4496"},"modified":"2020-09-04T07:37:35","modified_gmt":"2020-09-04T07:37:35","slug":"purification-and-refining","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/es\/purification-and-refining\/","title":{"rendered":"Purificaci\u00f3n y refinado"},"content":{"rendered":"<p>El objetivo fundamental de la fundici\u00f3n de aleaciones de aluminio es obtener una masa fundida de aleaci\u00f3n de aluminio con una composici\u00f3n qu\u00edmica que cumpla los requisitos de producci\u00f3n y presente una elevada pureza, mediante el dise\u00f1o de un proceso de fundici\u00f3n adecuado. La fundici\u00f3n de aleaciones de aluminio secundarias consiste en refundir en el horno de fundici\u00f3n la chatarra de aluminio preprocesada, los restos de aluminio, etc., y llevar a cabo operaciones de desgasificaci\u00f3n, eliminaci\u00f3n de escoria, modificaci\u00f3n y refinado durante el proceso de fusi\u00f3n para obtener la composici\u00f3n qu\u00edmica requerida; finalmente, el aluminio fundido se vierte en un lingote. Las materias primas del aluminio reciclado son, por lo general, residuos con componentes mezclados y poco definidos de diferentes aleaciones. Deben fundirse y tratarse para eliminar las impurezas nocivas, los gases y los \u00f3xidos presentes en los residuos, con el fin de obtener un fundido de alta calidad para la producci\u00f3n de lingotes. Los m\u00e9todos m\u00e1s utilizados son la purificaci\u00f3n y el refinado.<\/p>\n<p>En comparaci\u00f3n con el aluminio primario, el aluminio secundario contiene m\u00e1s elementos impuros, principalmente Fe, Mg, Zn, Si, Cu, Mn, etc. Dado que la presencia de elementos impuros reduce las prestaciones del aluminio secundario, la mayor\u00eda de las aleaciones de aluminio se someten a un proceso de degradaci\u00f3n antes de su uso. Por lo tanto, la investigaci\u00f3n sobre la eliminaci\u00f3n de elementos impuros en el proceso de producci\u00f3n del aluminio secundario tiene un valor pr\u00e1ctico muy importante.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-4498\" src=\"http:\/\/alalloycasting.com\/wp-content\/uploads\/2020\/09\/Purification-and-Refining-1.jpg\" alt=\"Purificaci\u00f3n y refinado\" width=\"500\" height=\"400\" srcset=\"https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/09\/Purification-and-Refining-1.jpg 500w, https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/09\/Purification-and-Refining-1-300x240.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/p>\n<p>La purificaci\u00f3n y el refinado son procesos muy importantes en la fundici\u00f3n de aluminio reciclado. Los m\u00e9todos m\u00e1s utilizados son la inyecci\u00f3n de polvo y la purificaci\u00f3n con gas inerte. En la actualidad, el m\u00e1s utilizado es <a href=\"http:\/\/www.alalloycasting.com\/es\/refining-flux\/\">agentes refinadores<\/a> son las sales de cloruro y las sales de fluoruro. Tambi\u00e9n se puede utilizar Cl\u2082 o C\u2082Cl\u2086. Aunque estos agentes de refinado tienen buenos efectos de purificaci\u00f3n y refinado, los subproductos, como el AlCl\u2083 y el HCl, pueden causar graves da\u00f1os al organismo humano, al medio ambiente y a los equipos.<\/p>\n<p>Si el agente de refinado utiliza gases inertes como el N\u2082 y el Ar, el efecto de purificaci\u00f3n no es muy bueno. En la actualidad, la tecnolog\u00eda m\u00e1s avanzada consiste en utilizar aleaciones de tierras raras para modificar, refinar y purificar el aluminio secundario, aprovechando al m\u00e1ximo la interacci\u00f3n entre los elementos de tierras raras y el aluminio fundido, con el fin de lograr un tratamiento integrado de purificaci\u00f3n, refinado y modificaci\u00f3n del aluminio fundido. Este m\u00e9todo de refinado es sencillo y eficiente, puede mejorar eficazmente la calidad metal\u00fargica del aluminio reciclado y no conlleva la generaci\u00f3n de gases de escape nocivos ni otros subproductos durante el proceso de tratamiento. Adem\u00e1s, el m\u00e9todo de refinado combinado que utiliza dos procesos de refinado al mismo tiempo, como los m\u00e9todos de refinado combinado mediante filtraci\u00f3n con sal de cloro y soplado de arg\u00f3n con fundente, es mejor que el refinado simple.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-4499\" src=\"http:\/\/alalloycasting.com\/wp-content\/uploads\/2020\/09\/Purification-and-Refining-2.jpg\" alt=\"Purificaci\u00f3n y refinado\" width=\"500\" height=\"400\" srcset=\"https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/09\/Purification-and-Refining-2.jpg 500w, https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/09\/Purification-and-Refining-2-300x240.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/p>\n<p>El m\u00e9todo de filtraci\u00f3n es la forma m\u00e1s econ\u00f3mica y eficaz de eliminar las impurezas. <a href=\"http:\/\/www.alalloycasting.com\/es\/foam-ceramic-filter\/\">Filtro cer\u00e1mico de espuma<\/a> Las placas se utilizan habitualmente para la filtraci\u00f3n. Al aplicar el principio de adsorci\u00f3n para filtrar, permiten eliminar eficazmente las inclusiones de gran tama\u00f1o presentes en el aluminio fundido y absorber eficazmente las inclusiones de menor tama\u00f1o. No desprenden escoria y reducen eficazmente la contaminaci\u00f3n del aluminio fundido. Buena resistencia al choque t\u00e9rmico y mayor resistencia a la corrosi\u00f3n por el metal fundido. Mejora la calidad de la superficie, el rendimiento del producto y la microestructura.<\/p>","protected":false},"excerpt":{"rendered":"<p>The basic purpose of aluminum alloy smelting is to obtain an aluminum alloy melt with a chemical composition that meets the production requirements and high&hellip;<\/p>","protected":false},"author":1,"featured_media":4497,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[4655],"class_list":["post-4496","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-purification-and-refining"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Purification and Refining process in the smelting of recycled aluminum<\/title>\n<meta name=\"description\" content=\"Purification and refining is a very important process in the smelting of recycled aluminum. The most commonly used methods are flux refining.\" \/>\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\/purification-and-refining\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Purification and Refining process in the smelting of recycled aluminum\" \/>\n<meta property=\"og:description\" content=\"Purification and refining is a very important process in the smelting of recycled aluminum. 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