{"id":4094,"date":"2020-08-24T07:13:27","date_gmt":"2020-08-24T07:13:27","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=4094"},"modified":"2020-08-24T07:13:27","modified_gmt":"2020-08-24T07:13:27","slug":"molten-metal-purification","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/es\/molten-metal-purification\/","title":{"rendered":"Purificaci\u00f3n de metal fundido"},"content":{"rendered":"<p>La purificaci\u00f3n del metal fundido es importante para la fundici\u00f3n. La calidad del metal destinado a la fundici\u00f3n y la laminaci\u00f3n puede mejorarse a\u00fan m\u00e1s mediante la adopci\u00f3n de m\u00e9todos de purificaci\u00f3n de la masa fundida, equipos y medidas de gesti\u00f3n. La purificaci\u00f3n del metal fundido puede llevarse a cabo de las siguientes formas y mediante los siguientes m\u00e9todos.<\/p>\n<h2>Purificaci\u00f3n de metal fundido<\/h2>\n<p>Modo de transferencia de la masa fundida: se ha mejorado el modo de transferencia de la masa fundida desde el horno hasta el horno est\u00e1tico, y el modo de goteo se ha sustituido por un sistema de plano inclinado, con el fin de evitar el aumento de la oxidaci\u00f3n y el agravamiento de la aspiraci\u00f3n de gases provocados por el goteo. Al mismo tiempo, se evita que grandes superficies de material fundido queden expuestas al aire, lo que aumentar\u00eda la oxidaci\u00f3n y la absorci\u00f3n de gases. Se mejora el aislamiento t\u00e9rmico de la rampa, se utilizan nuevos materiales, se aumenta el grosor de la rampa o se cubre esta. Se determina una temperatura de fusi\u00f3n adecuada para evitar que el material se queme en la rampa debido a una temperatura de fusi\u00f3n demasiado baja, lo que aumentar\u00eda la oxidaci\u00f3n y la absorci\u00f3n de gases por parte del material fundido.<\/p>\n<p>Refinado en horno est\u00e1tico: al mejorar el tubo de refinado o controlar el caudal y la presi\u00f3n del medio de desgasificaci\u00f3n, se puede evitar la influencia de un exceso de burbujas en el efecto de desgasificaci\u00f3n. Con el fin de producir papel de aluminio de alta calidad, se sugieren los siguientes m\u00e9todos para sustituir el actual refinado con un \u00fanico gas inerte y mejorar as\u00ed el efecto de purificaci\u00f3n de la masa fundida.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-4096\" src=\"http:\/\/alalloycasting.com\/wp-content\/uploads\/2020\/08\/Molten-Metal-Purification-1.jpg\" alt=\"Purificaci\u00f3n de metal fundido\" width=\"500\" height=\"400\" srcset=\"https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/08\/Molten-Metal-Purification-1.jpg 500w, https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/08\/Molten-Metal-Purification-1-300x240.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/p>\n<p>Refinado mixto con fundente gaseoso: al inyectar una peque\u00f1a cantidad de fundente en polvo, se forma una pel\u00edcula de sal l\u00edquida en la superficie de la burbuja. La pel\u00edcula de \u00f3xido de la superficie de la burbuja se rompe, se adsorbe y se disuelve. El hidr\u00f3geno presente en la masa fundida se difunde hacia el interior de la burbuja, lo que mejora el efecto de desgasificaci\u00f3n.<\/p>\n<p>CCl\u2084: El CCl\u2084 reacciona con el aluminio para producir AlCl\u2083, HCl, Cl\u2082 y otros gases activos. El hidr\u00f3geno presente en la masa fundida se elimina mediante acciones f\u00edsicas y qu\u00edmicas, lo que mejora el efecto de refinado.<\/p>\n<p>La mezcla de refrigerantes fluorados y arg\u00f3n se utiliza en el proceso de refinado: el cloro y el fl\u00faor (CCL\u2082F\u2082) producidos por la descomposici\u00f3n del fre\u00f3n pueden reaccionar con los elementos de las aleaciones de aluminio para formar sales fundidas como el HCl, el AlCl\u2083 y el AlF\u2083, que act\u00faan como fundente de burbujas en el proceso de refinado mixto.<\/p>\n<p>El <a href=\"http:\/\/www.alalloycasting.com\/es\/online-degassing-device\/\">dispositivo de desgasificaci\u00f3n en l\u00ednea<\/a> introduce gas protector en la c\u00e1mara para reducir la absorci\u00f3n y la oxidaci\u00f3n del hidr\u00f3geno. Al optimizar la velocidad de rotaci\u00f3n y mejorar la salida de aire del rotor, las burbujas son m\u00e1s finas y se mejora el efecto de desgasificaci\u00f3n.<\/p>\n<p>Para producir algod\u00f3n de papel de aluminio de alta calidad, se a\u00f1ade un filtro de grano grueso (como un filtro de 10-20 ppig) antes de la desgasificaci\u00f3n, con el fin de mejorar la pureza de la masa fundida, aumentar la velocidad de difusi\u00f3n del hidr\u00f3geno en la misma y mejorar el efecto de la desgasificaci\u00f3n en l\u00ednea. Se debe reforzar la limpieza y la sustituci\u00f3n de <a href=\"http:\/\/www.alalloycasting.com\/es\/cff-filter-box\/\">Caja de filtro CFF<\/a> para garantizar la forma y el tama\u00f1o de la c\u00e1mara de filtrado y asegurar la eficacia del filtrado.<\/p>","protected":false},"excerpt":{"rendered":"<p>Molten metal purification is important for foundry. The quality of casting and rolling metal can be further improved by adopting melt purification method, equipment and&hellip;<\/p>","protected":false},"author":1,"featured_media":4095,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[138],"tags":[4512],"class_list":["post-4094","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-seo","tag-molten-metal-purification"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Molten Metal Purification by Degassing and Filtering System<\/title>\n<meta name=\"description\" content=\"Molten metal purification is important for foundry. The quality of casting metal can be further improved by degassing and filtering system.\" \/>\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\/molten-metal-purification\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Molten Metal Purification by Degassing and Filtering System\" \/>\n<meta property=\"og:description\" content=\"Molten metal purification is important for foundry. 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