{"id":4039,"date":"2020-08-23T07:50:02","date_gmt":"2020-08-23T07:50:02","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=4039"},"modified":"2020-08-23T07:50:39","modified_gmt":"2020-08-23T07:50:39","slug":"refining-aluminum-liquid","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/es\/refining-aluminum-liquid\/","title":{"rendered":"Refinado del aluminio l\u00edquido"},"content":{"rendered":"<p>El refinado del aluminio l\u00edquido permite eliminar el hierro y otras impurezas. El fundente de refinado AdTech es un material de color blanco con part\u00edculas finas ligeramente gris\u00e1ceas. Sus ingredientes principales son cloruro y otros compuestos. Tras el tratamiento t\u00e9rmico y el cribado, adquiere un tama\u00f1o uniforme. Bajo la acci\u00f3n del nitr\u00f3geno o el arg\u00f3n como gas portador, <a href=\"http:\/\/www.alalloycasting.com\/es\/refining-flux\/\">fundente de refinado<\/a> Se inyecta en la masa fundida dos veces a trav\u00e9s del dep\u00f3sito de pulverizaci\u00f3n de polvo. Tras los cambios f\u00edsicos y qu\u00edmicos que se producen en el aluminio fundido, se separan y se forman numerosas burbujas peque\u00f1as que contienen impurezas. Las burbujas, que contienen \u00e1tomos de hidr\u00f3geno, ascienden lentamente y salen flotando, con lo que se logra la purificaci\u00f3n.<\/p>\n<p>El hierro es el principal elemento de impureza en las aleaciones de aluminio.<\/p>\n<p>En el aluminio existen dos formas de hierro: una es la fase \u03b2 (Al\u2089Fe\u2082Si\u2082), con una estructura acicular, y la otra es la fase \u03b1 (Al\u2081\u2082Fe\u2083Si), con una estructura granular. Las diferentes estructuras de fase tienen efectos distintos en las aleaciones de aluminio. La fase \u03b2, de estructura laminar, es m\u00e1s perjudicial que la fase \u03b1, de estructura granular. La fase \u03b2 provoca rugosidad superficial, afecta a las propiedades mec\u00e1nicas y aumenta la corrosi\u00f3n de los perfiles de aluminio. Cuando la superficie del perfil de aluminio adquiere un tono azulado, el brillo se reduce y no se consigue un color puro tras la coloraci\u00f3n, por lo que es imprescindible controlar el contenido de hierro.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-4040\" src=\"http:\/\/alalloycasting.com\/wp-content\/uploads\/2020\/08\/Refining-Aluminum-Liquid.jpg\" alt=\"Refinado del aluminio l\u00edquido\" width=\"500\" height=\"400\" srcset=\"https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/08\/Refining-Aluminum-Liquid.jpg 500w, https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/08\/Refining-Aluminum-Liquid-300x240.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/p>\n<p>Con el fin de reducir los efectos nocivos del hierro y llevar a cabo el refinado de los elementos impuros, se pueden adoptar las siguientes medidas:<\/p>\n<p>Antes de su uso, todas las herramientas destinadas a la fundici\u00f3n y el moldeo deben recubrirse con pintura de enjuague, lo que puede reducir la disoluci\u00f3n del hierro en el aluminio fundido.<br \/>\nAl refinar el aluminio l\u00edquido, se consigue que la fase f\u00e9rrica sea m\u00e1s fina y peque\u00f1a, y se reducen sus efectos nocivos.<br \/>\nA\u00f1adir una cantidad adecuada de estroncio transformar\u00e1 la fase \u03b2 en fase \u03b1 y reducir\u00e1 sus efectos nocivos.<br \/>\nSelecciona cuidadosamente los residuos para reducir al m\u00ednimo la cantidad de alambres de hierro, clavos, limaduras de hierro y otros residuos que puedan entrar en el horno de aluminio, lo que provocar\u00eda un aumento del contenido de hierro.<\/p>\n<p>El contenido de otros elementos de impureza en los lingotes de aluminio electrol\u00edtico es inferior a los l\u00edmites establecidos por la normativa nacional, aunque puede superar dichos l\u00edmites cuando se utiliza chatarra de aluminio reciclada. En el proceso de producci\u00f3n, es necesario controlar el contenido de cada elemento para que no supere el l\u00edmite establecido, y la cantidad total de elementos impuros tampoco debe superar dicho l\u00edmite. Cuando el contenido de un solo elemento no supera el l\u00edmite, pero la cantidad total s\u00ed lo hace, estos elementos impuros tambi\u00e9n tienen un gran impacto en la calidad. La experiencia ha demostrado que, cuando el contenido de zinc alcanza el 0,05, aparecen manchas blancas en la superficie del perfil oxidado, por lo que dicho contenido debe mantenerse por debajo de 0,05.<\/p>","protected":false},"excerpt":{"rendered":"<p>Refining aluminum liquid can remove iron and other impurity elements. AdTech\u00a0refining flux\u00a0is a kind of white with slightly gray fine particles. The Main ingredients are&hellip;<\/p>","protected":false},"author":1,"featured_media":4040,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[4502],"class_list":["post-4039","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-refining-aluminum-liquid"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Refining Aluminum Liquid | Fluxes for Melting Aluminum<\/title>\n<meta name=\"description\" content=\"Refining aluminum liquid can remove iron and other impurity elements. 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