agente desgasificante<\/a> Se descomponen f\u00e1cilmente a altas temperaturas, y el gas generado reacciona f\u00e1cilmente con el hidr\u00f3geno, presenta una fuerte fuerza de adsorci\u00f3n con la escoria y se escapa r\u00e1pidamente de la masa fundida. Los dem\u00e1s componentes tienen un efecto de eliminaci\u00f3n de escoria.<\/p>\nLos fundentes de desgasificaci\u00f3n del aluminio son aptos para las aleaciones de aluminio m\u00e1s habituales (aleaciones con alto contenido en magnesio y aleaciones de aluminio y magnesio), as\u00ed como para la fundici\u00f3n de aluminio puro, el refinado por desgasificaci\u00f3n y la eliminaci\u00f3n de escoria.<\/p>\n
El agente de refinado se espolvorea sobre la superficie del l\u00edquido y se introduce r\u00e1pidamente en el aluminio fundido. Una vez mezclado por completo, se deja reposar para que se forme la escoria; si se aplica por pulverizaci\u00f3n, el agente de refinado se pulveriza en el aluminio fundido con un gas inerte.<\/p>\n
Funci\u00f3n del fundente en la fundici\u00f3n de aluminio<\/strong><\/p>\n1. Modificar la humectabilidad del aluminio fundido con respecto al \u00f3xido (al\u00famina), de modo que el aluminio fundido se separe f\u00e1cilmente del \u00f3xido (al\u00famina), lo que permite que la mayor parte del \u00f3xido (al\u00famina) penetre en el flujo y reduzca el contenido de \u00f3xidos en el cuerpo.<\/p>\n
2. El fundente puede alterar el estado de la pel\u00edcula de \u00f3xido presente en la superficie del material fundido. Esto se debe a que es capaz de fragmentar la pel\u00edcula de \u00f3xido s\u00f3lida y densa de la superficie del material fundido en part\u00edculas finas, lo que facilita que el hidr\u00f3geno presente en el material fundido se escape del espacio entre las part\u00edculas de la capa de pel\u00edcula de \u00f3xido y se introduzca en la atm\u00f3sfera.<\/p>\n
3. La presencia de la capa de fundente puede aislar el contacto entre el vapor de agua y el aluminio fundido en la atm\u00f3sfera, lo que dificulta la entrada de hidr\u00f3geno en el aluminio fundido y, al mismo tiempo, evita la p\u00e9rdida oxidativa del hierro fundido.<\/p>\n
4. El fundente adsorbe los \u00f3xidos durante la fundici\u00f3n del aluminio para purificar el ba\u00f1o de fundici\u00f3n. En resumen, el efecto del refinado en corriente para eliminar las inclusiones se consigue principalmente mediante la adsorci\u00f3n, la disoluci\u00f3n y las reacciones qu\u00edmicas con las pel\u00edculas de \u00f3xido y las inclusiones no met\u00e1licas presentes en el ba\u00f1o de fundici\u00f3n.<\/p>","protected":false},"excerpt":{"rendered":"
Aluminium degassing agent is a white powder or granular stream, which is prepared by drying a plurality of inorganic salts and mixing them in a…<\/p>","protected":false},"author":1,"featured_media":11448,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[],"class_list":["post-11447","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"\n
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