{"id":6341,"date":"2020-11-12T01:29:26","date_gmt":"2020-11-12T01:29:26","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=6341"},"modified":"2020-11-12T01:29:26","modified_gmt":"2020-11-12T01:29:26","slug":"fluxes-purification","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/es\/fluxes-purification\/","title":{"rendered":"M\u00e9todo de purificaci\u00f3n de fundentes"},"content":{"rendered":"<p>Dado que el aluminio l\u00edquido de la c\u00e9lula electrol\u00edtica contiene numerosas impurezas, es necesario filtrarlo antes de fundir el lingote de aluminio. Entre los m\u00e9todos m\u00e1s habituales se encuentran los fundentes, los gases y los m\u00e9todos de purificaci\u00f3n por clarificaci\u00f3n. Los principales m\u00e9todos son:<\/p>\n<p><strong>M\u00e9todo de purificaci\u00f3n de fundentes y m\u00e9todo de purificaci\u00f3n de gases<\/strong><\/p>\n<p>1. El m\u00e9todo de purificaci\u00f3n de flujos consiste en utilizar el <a href=\"http:\/\/www.alalloycasting.com\/es\/refining-flux\/\">fundente de refinado<\/a> se a\u00f1ade a la soluci\u00f3n, que presenta las caracter\u00edsticas de baja densidad, alta actividad y gran capacidad de adsorci\u00f3n. Al adsorberse los \u00f3xidos en la soluci\u00f3n, se forman nuevas gotitas que ascienden a la superficie. Tras el enfriamiento, se forma una espuma. El lingote de aluminio se puede fundir una vez eliminada la espuma.<\/p>\n<p>2. La purificaci\u00f3n con gas \u2014en la que se suele utilizar cloro, nitr\u00f3geno o una mezcla de cloro y nitr\u00f3geno\u2014 es uno de los principales m\u00e9todos de purificaci\u00f3n del aluminio primario.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-6343\" src=\"http:\/\/alalloycasting.com\/wp-content\/uploads\/2020\/11\/Fluxes-Purification-1.jpg\" alt=\"Purificaci\u00f3n de fundentes\" width=\"500\" height=\"400\" srcset=\"https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/11\/Fluxes-Purification-1.jpg 500w, https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/11\/Fluxes-Purification-1-300x240.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/p>\n<p><strong>Purificaci\u00f3n con cloro<\/strong><\/p>\n<p>El cloro gaseoso presente en el aluminio fundido genera numerosas burbujas peque\u00f1as que se mezclan por completo con el aluminio fundido; el hidr\u00f3geno disuelto en este, as\u00ed como algunas inclusiones mec\u00e1nicas, pueden adsorberse en dichas burbujas. A medida que las burbujas ascienden hacia la superficie del aluminio fundido, se expulsan.<\/p>\n<p><strong>M\u00e9todo de purificaci\u00f3n del nitr\u00f3geno<\/strong><\/p>\n<p>Dado que el cloro es t\u00f3xico y costoso, se ha implantado la purificaci\u00f3n con nitr\u00f3geno. Se utilizan bolas de al\u00famina como medio filtrante. El N\u2082 se introduce directamente en el aluminio fundido. El aluminio fundido se introduce de forma continua en el horno de purificaci\u00f3n, atraviesa la capa filtrante de bolas de al\u00famina y es barrido por nitr\u00f3geno, con lo que se eliminan las inclusiones no met\u00e1licas y el hidr\u00f3geno disuelto en el aluminio fundido; a continuaci\u00f3n, se descarga de forma continua, de modo que las finas burbujas de nitr\u00f3geno se distribuyen uniformemente y ejercen un efecto purificador en el aluminio l\u00edquido tratado.<\/p>\n<p><strong>M\u00e9todo de purificaci\u00f3n de gases mixtos<\/strong><\/p>\n<p>Para purificar el aluminio fundido se utiliza una mezcla de cloro y nitr\u00f3geno. Su funci\u00f3n es, por un lado, eliminar el hidr\u00f3geno y separar los \u00f3xidos y, por otro, eliminar ciertas impurezas met\u00e1licas (como el magnesio) presentes en el aluminio. La composici\u00f3n m\u00e1s habitual es 90% de nitr\u00f3geno + 10% de cloro. Tambi\u00e9n existe la combinaci\u00f3n de 10% de cloro + 10% de di\u00f3xido de carbono + 80% de nitr\u00f3geno. Este m\u00e9todo ofrece mejores resultados, ya que el di\u00f3xido de carbono permite que el cloro y el nitr\u00f3geno se difundan bien, lo que puede acortar el tiempo de operaci\u00f3n.<\/p>","protected":false},"excerpt":{"rendered":"<p>Because there are many impurities in the aluminum liquid in the electrolytic cell, it must be filtered before casting the aluminum ingot. Common methods include&hellip;<\/p>","protected":false},"author":1,"featured_media":6342,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[240,6441],"class_list":["post-6341","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-flux-refining","tag-fluxes-purification"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Fluxes Purification Method for Molten Metal Refining<\/title>\n<meta name=\"description\" content=\"The fluxes purification method is to add the refining flux to molten metal, which has the high activity, and strong adsorption capacity.\" \/>\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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