{"id":9026,"date":"2021-06-01T07:09:43","date_gmt":"2021-06-01T07:09:43","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=9026"},"modified":"2021-05-31T07:10:43","modified_gmt":"2021-05-31T07:10:43","slug":"flotation-slag-removal","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/es\/flotation-slag-removal\/","title":{"rendered":"Eliminaci\u00f3n de escoria mediante flotaci\u00f3n"},"content":{"rendered":"<p>La eliminaci\u00f3n de escorias por flotaci\u00f3n consiste en aprovechar una determinada interacci\u00f3n fisicoqu\u00edmica entre el fundente o el gas inerte y los \u00f3xidos, es decir, la adsorci\u00f3n y la disoluci\u00f3n parcial, lo que da lugar a la formaci\u00f3n de espuma. La temperatura de fusi\u00f3n de la aleaci\u00f3n de aluminio es baja, mientras que el punto de fusi\u00f3n de su \u00f3xido es muy alto. Por lo tanto, el m\u00e9todo de eliminaci\u00f3n de escorias por flotaci\u00f3n resulta m\u00e1s adecuado para la aleaci\u00f3n de aluminio.<\/p>\n<p>Durante la fundici\u00f3n, la pel\u00edcula de \u00f3xido se sumerge en el metal fundido; parte de ella flota en la superficie del aluminio fundido o se adhiere a la pared del horno, lo que provoca una nueva oxidaci\u00f3n del aluminio l\u00edquido y da lugar a la formaci\u00f3n de las inclusiones mencionadas anteriormente. Una vez mezcladas con el metal fundido en los materiales de colada y laminaci\u00f3n, se producen inclusiones de escoria y una pel\u00edcula de \u00f3xido. Esto reduce significativamente las propiedades mec\u00e1nicas y la resistencia a la corrosi\u00f3n de los productos. Por lo tanto, en el proceso de colada continua y laminaci\u00f3n, el metal fundido debe refinarse y purificarse para reducir eficazmente el contenido de gases e inclusiones, y producir finalmente l\u00e1minas y folios de alta calidad. Por ello, la tecnolog\u00eda de purificaci\u00f3n del aluminio fundido es el principal tema de investigaci\u00f3n en los pa\u00edses modernos. Su objetivo fundamental es maximizar el efecto de refinado y mejorar la pureza del metal, siempre que se evite la contaminaci\u00f3n medioambiental.<\/p>\n<p>Cuando se refina la aleaci\u00f3n de aluminio con nitr\u00f3geno, aparecen en la superficie gran cantidad de escorias oxidadas al mismo tiempo que se elimina el hidr\u00f3geno. Al pasar las burbujas a trav\u00e9s del aluminio fundido, las part\u00edculas de \u00f3xido dispersas se adsorben en ellas y flotan hacia la superficie del l\u00edquido a medida que las burbujas ascienden. Cuanto mayor sea el n\u00famero de burbujas y mayor su tama\u00f1o, mejor ser\u00e1 el efecto de eliminaci\u00f3n de escorias. Los gases inertes utilizados suelen ser el nitr\u00f3geno y el arg\u00f3n. Tambi\u00e9n se suelen emplear como agentes de flotaci\u00f3n sales de cloruro en las aleaciones de aluminio.<\/p>\n<p>AdTech\u2019s <a href=\"http:\/\/www.alalloycasting.com\/es\/online-degassing-system\/\">sistema de desgasificaci\u00f3n en l\u00ednea<\/a> Utiliza este m\u00e9todo de eliminaci\u00f3n de escorias por flotaci\u00f3n para la desgasificaci\u00f3n y la desescoriaci\u00f3n. Se instalar\u00e1 una unidad de desgasificaci\u00f3n en l\u00ednea entre el horno y el equipo de colada. Se utiliza para eliminar el hidr\u00f3geno (H) y las escorias del aluminio fundido.<\/p>","protected":false},"excerpt":{"rendered":"<p>Flotation slag removal is the use of a certain physicochemical interaction between flux or inert gas and oxides, that is, adsorption and partial dissolution, causing&hellip;<\/p>","protected":false},"author":1,"featured_media":9027,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[],"class_list":["post-9026","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>Flotation Slag Removal Method used for Molten Aluminum<\/title>\n<meta name=\"description\" content=\"Flotation slag removal is the use of a certain physicochemical interaction between flux or inert gas and oxides, 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