{"id":6445,"date":"2020-11-13T08:48:28","date_gmt":"2020-11-13T08:48:28","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=6445"},"modified":"2020-11-13T08:48:28","modified_gmt":"2020-11-13T08:48:28","slug":"aluminum-alloy-fluxes","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/es\/aluminum-alloy-fluxes\/","title":{"rendered":"Fundentes para aleaciones de aluminio"},"content":{"rendered":"

En la actualidad, los fundentes de aleaciones de aluminio se dividen principalmente en dos sistemas: el sistema NaCl-KCl y el sistema KCl-MgCl\u2082. El primero contiene sodio (Na), y el NaCl-KCl equimolar forma un eut\u00e9ctico de bajo punto de fusi\u00f3n a 665 \u00b0C, que tiene un fuerte efecto humectante sobre el Al\u2082O\u2083. Se utiliza generalmente en aleaciones que no son sensibles al sodio y constituye la base de la mayor\u00eda de los fundentes; el segundo, como Flujo sin Na<\/a>, es la base de los fundentes para aleaciones de aluminio con alto contenido en Mg. La mezcla de KCl y MgCl\u2082 presenta un punto de fusi\u00f3n bajo, entre 424 y 465 \u2103.<\/p>\n

Con el fin de aumentar el efecto de separaci\u00f3n entre la escoria y el aluminio, mejorar la tensi\u00f3n superficial del fundente y potenciar su capacidad de purificaci\u00f3n, se a\u00f1aden aditivos como Na\u2083AlF\u2086, K\u2083AlF\u2086 o CaF a la base del fundente. La incorporaci\u00f3n de estos aditivos se divide generalmente en mezcla mec\u00e1nica y mezcla por refundici\u00f3n; la uniformidad de la composici\u00f3n del fundente mezclado por refundici\u00f3n es mucho mayor que la de la mezcla mec\u00e1nica y permite obtener eut\u00e9cticos de bajo punto de fusi\u00f3n, aunque el coste es, en consecuencia, m\u00e1s elevado. Se utiliza para la preparaci\u00f3n de fundentes de alto rendimiento. La premisa b\u00e1sica del m\u00e9todo de mezcla por refundici\u00f3n consiste en dominar las propiedades termodin\u00e1micas de la mezcla y, a continuaci\u00f3n, garantizar el punto de fusi\u00f3n del fundente. Por lo general, la temperatura de fusi\u00f3n del fundente debe ser inferior en m\u00e1s de 50 \u2103 a la temperatura de fusi\u00f3n durante la fundici\u00f3n del aluminio. El fundente fundido se utiliza para lograr la adsorci\u00f3n y la fusi\u00f3n de las impurezas. Para eliminar la capacidad de escoria, si el punto de fusi\u00f3n no cumple los requisitos, es necesario a\u00f1adir un agente calentador que favorezca el r\u00e1pido aumento de la temperatura del fundente, lo que complicar\u00e1 la composici\u00f3n de los fundentes para aleaciones de aluminio.<\/p>\n

\"Fundentes<\/p>\n

La simplificaci\u00f3n de fundente para el refinado de aleaciones de aluminio<\/a> La composici\u00f3n es una de las tendencias actuales en el desarrollo de la preparaci\u00f3n de fundentes, y la purificaci\u00f3n eficaz se consigue a trav\u00e9s de las caracter\u00edsticas f\u00edsicas y din\u00e1micas m\u00e1s sencillas. Por lo tanto, para evaluar la calidad de un fundente, debemos examinar en primer lugar la sencillez de su composici\u00f3n.<\/p>","protected":false},"excerpt":{"rendered":"

At present, aluminum alloy fluxes are mainly divided into two systems: NaCl-KCl system and KCl-MgCl2 system. The former contains Na and equimolar NaCl-KCl forms a…<\/p>","protected":false},"author":1,"featured_media":6470,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[138],"tags":[],"class_list":["post-6445","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-seo"],"yoast_head":"\nAluminum Alloy Fluxes Composition - NaCl-KCl and KCl-MgCl2 System<\/title>\n<meta name=\"description\" content=\"At present, aluminum alloy fluxes are mainly divided into two systems: NaCl-KCl system and KCl-MgCl2 system. The former contains Na.\" \/>\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\/aluminum-alloy-fluxes\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Aluminum Alloy Fluxes Composition - NaCl-KCl and KCl-MgCl2 System\" \/>\n<meta property=\"og:description\" content=\"At present, aluminum alloy fluxes are mainly divided into two systems: NaCl-KCl system and KCl-MgCl2 system. 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