Fundentes de desbaste<\/a> favorecer la separaci\u00f3n del aluminio fundido atrapado en la escoria. Adem\u00e1s de cloruros y fluoruros, los fundentes de desescoria contienen componentes oxidantes que reaccionan de forma exot\u00e9rmica con el aluminio al calentarse. El calor generado por el fundente de desescoria mejora la humectabilidad y la fluidez del aluminio atrapado, cuyas gotas se fusionan y fluyen hacia la masa fundida. La escoria tratada con el fundente de desescoriado es pulverulenta y seca. Se retira f\u00e1cilmente del horno. Los fundentes de desescoriado ayudan a reducir las p\u00e9rdidas de aluminio, lo que los hace muy rentables, especialmente en la refundici\u00f3n de chatarra de aluminio.<\/p>\nLos fundentes para aluminio fundido, compuestos por sales que contienen cloro y fl\u00faor, se utilizan para desgasificar aleaciones de aluminio fundidas. Los fundentes desgasificantes suelen presentarse en forma de pastillas. La operaci\u00f3n de desgasificaci\u00f3n comienza cuando una campana perforada, limpia y precalentada, sumerge una pastilla de fundente en el fondo del horno. Los componentes del fundente reaccionan con el aluminio formando compuestos gaseosos. El gas burbujea y asciende a trav\u00e9s del ba\u00f1o de fusi\u00f3n. La presi\u00f3n parcial del hidr\u00f3geno en las burbujas formadas es muy baja, por lo que se difunde desde el aluminio fundido hacia las burbujas. Las burbujas se escapan del ba\u00f1o de fusi\u00f3n y el gas se elimina a continuaci\u00f3n mediante el sistema de extracci\u00f3n. El proceso contin\u00faa hasta que cesa el burbujeo. El fundente desgasificante tambi\u00e9n puede introducirse mediante un m\u00e9todo de inyecci\u00f3n. En este caso, el gas inerte act\u00faa como portador del fundente granulado. Adem\u00e1s del efecto desgasificante, el tratamiento de desgasificaci\u00f3n permite eliminar las inclusiones no met\u00e1licas suspendidas en el ba\u00f1o de fusi\u00f3n.<\/p>","protected":false},"excerpt":{"rendered":"
Melting Aluminum Fluxes are used in aluminum foundries, so as to reduce the melt oxidation, minimize penetration of the atmospheric hydrogen, absorb non-metallic inclusions suspended…<\/p>","protected":false},"author":1,"featured_media":10543,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[120],"tags":[],"class_list":["post-10542","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-fluxes"],"yoast_head":"\n
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