{"id":5663,"date":"2020-10-16T03:40:51","date_gmt":"2020-10-16T03:40:51","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=5663"},"modified":"2020-10-16T03:40:51","modified_gmt":"2020-10-16T03:40:51","slug":"refining-methods-of-aluminum-alloy","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/es\/refining-methods-of-aluminum-alloy\/","title":{"rendered":"M\u00e9todos de refinado de aleaciones de aluminio"},"content":{"rendered":"<p>La purificaci\u00f3n del aluminio fundido es un requisito imprescindible para obtener piezas de fundici\u00f3n de alta calidad. Debido a la absorci\u00f3n y oxidaci\u00f3n de las materias primas, as\u00ed como durante los procesos de fundici\u00f3n, transporte y colada, el aluminio fundido se contamina f\u00e1cilmente con hidr\u00f3geno disuelto, inclusiones no met\u00e1licas, y m\u00e1s tritio, metales alcalinos o alcalinot\u00e9rreos, lo que hace que las piezas fundidas sean propensas a presentar poros, inclusiones y otros defectos, y provoca un mayor deterioro de las propiedades mec\u00e1nicas, la resistencia a la corrosi\u00f3n, la estanqueidad, el comportamiento ante la oxidaci\u00f3n an\u00f3dica y la calidad est\u00e9tica de las piezas fundidas. Por lo tanto, debe refinarse y purificarse antes de la fundici\u00f3n para eliminar el aire y las impurezas, con el fin de mejorar la pureza de la aleaci\u00f3n l\u00edquida. Seg\u00fan el mecanismo de refinado, existen numerosos m\u00e9todos de refinado de la aleaci\u00f3n l\u00edquida de aluminio, que pueden dividirse en dos categor\u00edas: el m\u00e9todo de adsorci\u00f3n y el m\u00e9todo de no adsorci\u00f3n.<\/p>\n<p><strong>M\u00e9todos de refinado de aleaciones de aluminio<\/strong><\/p>\n<p>El m\u00e9todo de refinado por adsorci\u00f3n se basa en el efecto de adsorci\u00f3n del agente refinador para eliminar las inclusiones de oxidaci\u00f3n y los gases. El efecto de refinado solo se produce en la interfaz de adsorci\u00f3n y no puede afectar a todo el aluminio fundido, por lo que su alcance es limitado. Concretamente, se divide en dos tipos: el m\u00e9todo de flotaci\u00f3n y el m\u00e9todo de filtraci\u00f3n.<\/p>\n<p>El principio del m\u00e9todo de flotaci\u00f3n consiste en introducir gas inerte en el aluminio fundido para generar un gran n\u00famero de burbujas. Dado que la presi\u00f3n parcial del hidr\u00f3geno en las burbujas es cero, el hidr\u00f3geno seguir\u00e1 difundi\u00e9ndose hacia ellas debido a la diferencia entre las presiones parciales del hidr\u00f3geno en el aluminio fundido y en las burbujas, que flotan hacia arriba y escapan de la superficie del l\u00edquido. Al mismo tiempo, debido a la diferencia de humectabilidad, las inclusiones presentes en el aluminio fundido pueden adsorberse en las burbujas y, a continuaci\u00f3n, flotar hacia arriba y eliminarse, con lo que se logra el objetivo de eliminar el hidr\u00f3geno y las inclusiones.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5664\" src=\"http:\/\/alalloycasting.com\/wp-content\/uploads\/2020\/10\/Refining-Methods-of-Aluminum-Alloy-1.jpg\" alt=\"M\u00e9todos de refinado de aleaciones de aluminio\" width=\"500\" height=\"400\" srcset=\"https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/10\/Refining-Methods-of-Aluminum-Alloy-1.jpg 500w, https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/10\/Refining-Methods-of-Aluminum-Alloy-1-300x240.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/p>\n<p>El m\u00e9todo de filtraci\u00f3n utiliza <a href=\"http:\/\/www.alalloycasting.com\/es\/molten-aluminum-filters\/\">filtros de aluminio fundido<\/a> Fabricado con diversos materiales para purificar el aluminio fundido, lo que puede mejorar significativamente la calidad de las piezas fundidas. El dispositivo de filtrado de aleaci\u00f3n de aluminio permanece siempre sumergido en el aluminio fundido, y su temperatura se mantiene por encima de la temperatura de colada. El aluminio fundido no se enfr\u00eda ni se condensa durante todo el proceso de filtrado, por lo que es adecuado para la colada continua. Tras el filtrado, se eliminan diversas inclusiones no met\u00e1licas, se mejora la resistencia a los gases y se mejora la calidad del aluminio fundido.<\/p>","protected":false},"excerpt":{"rendered":"<p>The purification of aluminum alloy melt is the prerequisite for obtaining high-quality castings. Due to the inhalation and oxidation of raw materials and during the&hellip;<\/p>","protected":false},"author":1,"featured_media":5665,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[],"class_list":["post-5663","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>Refining Methods of Aluminum Alloy | Molten Aluminum Filter<\/title>\n<meta name=\"description\" content=\"According to the refining mechanism, there are many refining methods of aluminum alloy liquid, which can be divided into two categories...\" \/>\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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