{"id":6443,"date":"2020-11-13T08:56:36","date_gmt":"2020-11-13T08:56:36","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=6443"},"modified":"2020-11-13T08:56:36","modified_gmt":"2020-11-13T08:56:36","slug":"control-of-alkali-metal","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/es\/control-of-alkali-metal\/","title":{"rendered":"Control de los metales alcalinos"},"content":{"rendered":"<p>Reducir de forma eficaz el contenido de metales alcalinos en el aluminio fundido antes de la colada es la garant\u00eda fundamental para la producci\u00f3n de lingotes de aleaci\u00f3n de aluminio de alta calidad que cumplan los requisitos de rendimiento en el procesamiento de las aleaciones de aluminio de alta precisi\u00f3n, aumenten el valor a\u00f1adido de los productos transformados de aluminio de nuestro pa\u00eds y permitan optimizar y mejorar la estructura de los productos. Por lo tanto, el control del contenido de metales alcalinos y alcalinot\u00e9rreos en la masa fundida de aleaci\u00f3n de aluminio es uno de los indicadores b\u00e1sicos del control de calidad.<\/p>\n<p>Las principales materias primas para la producci\u00f3n de aluminio por electr\u00f3lisis incluyen al\u00famina, electrolitos, sales fluoradas, criolita, etc., por lo que la soluci\u00f3n de aluminio electrol\u00edtico contiene inevitablemente una gran cantidad de metales alcalinos y alcalinot\u00e9rreos, como sodio, magnesio, litio y calcio, as\u00ed como inclusiones no met\u00e1licas (principalmente cloruro de aluminio, electrolito, sales fluoradas, etc.). En la actualidad, el contenido de metales alcalinos en el aluminio l\u00edquido electrol\u00edtico producido por la mayor\u00eda de las empresas de electr\u00f3lisis de aluminio alcanza valores de entre 40 y 80 ppm, y el contenido de metales alcalinos tras el tratamiento con la tecnolog\u00eda actual sigue siendo superior a 20 ppm, mientras que el contenido de sodio en los lingotes de aluminio destinados a la fundici\u00f3n suele oscilar entre 8 y 15 ppm, llegando en algunos casos a alcanzar los 23 ppm. Los requisitos de rendimiento de los materiales de aleaci\u00f3n de aluminio tambi\u00e9n estipulan el contenido de metales alcalinos y alcalinot\u00e9rreos. Por ejemplo, en las aleaciones de aluminio con alto contenido en magnesio es necesario controlar el contenido de metales alcalinos, especialmente el de Na. El contenido de metales alcalinos se suele mantener por debajo de 5 ppm y se controla estrictamente por debajo de 2 ppm. AdTech ofrece <a href=\"http:\/\/www.alalloycasting.com\/es\/refining-flux\/\">fundente de refinado<\/a> para el control de los metales alcalinos.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-6474\" src=\"http:\/\/alalloycasting.com\/wp-content\/uploads\/2020\/11\/Control-of-Alkali-Metal-2.jpg\" alt=\"Control de los metales alcalinos\" width=\"500\" height=\"400\" srcset=\"https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/11\/Control-of-Alkali-Metal-2.jpg 500w, https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/11\/Control-of-Alkali-Metal-2-300x240.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/p>\n<p><strong>Usos del fundente de refinado<\/strong><\/p>\n<p>Retira el embalaje y pulveriza el agente refinador en el ba\u00f1o fundido a trav\u00e9s del dep\u00f3sito de pulverizaci\u00f3n de polvo, impulsado por el gas portador. Coloca la salida de la boquilla lo m\u00e1s cerca posible del fondo del ba\u00f1o fundido y mu\u00e9vela de un lado a otro para que el agente refinador entre en contacto completo con el aluminio fundido y se logre as\u00ed el objetivo de refinado. Tras la pulverizaci\u00f3n, se retira la escoria que flota en la superficie del aluminio fundido.<\/p>","protected":false},"excerpt":{"rendered":"<p>Effectively reducing the alkali metal content of the aluminum melt before casting is the basic guarantee for the production of high-quality aluminum alloy ingots to&hellip;<\/p>","protected":false},"author":1,"featured_media":6473,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[],"class_list":["post-6443","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>Control of Alkali Metal by Aluminum Alloy Casting Flux<\/title>\n<meta name=\"description\" content=\"The control of alkali metal\/alkaline earth metal content of aluminum alloy melt is one of the basic 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