flujos<\/a> con puntos de fusi\u00f3n bajos (como el NaCl, el KCl o el Na\u2083AlF\u2086) se utilizan habitualmente para aislar el aluminio l\u00edquido del aire. Se debe minimizar la agitaci\u00f3n en la medida de lo posible y desgasificar el aluminio l\u00edquido en la fase final de la fundici\u00f3n. El refinado consiste en hacer pasar cloro gaseoso a trav\u00e9s del aluminio l\u00edquido, o a\u00f1adir hexacloroetano y cloruro de zinc para formar burbujas, de modo que el hidr\u00f3geno disuelto en el aluminio l\u00edquido entre en las burbujas y se precipite. Durante el proceso de flotaci\u00f3n de las burbujas, el gas y las inclusiones de Al\u2082O\u2083 presentes en el aluminio l\u00edquido se separan de la superficie del l\u00edquido, con lo que el aluminio l\u00edquido queda purificado.<\/p>\n![\"Proceso](\"http:\/\/alalloycasting.com\/wp-content\/uploads\/2020\/05\/Aluminum-Casting-Process.jpg\")
<\/p>\n
Proceso de fundici\u00f3n de aluminio<\/h2>\n
La aleaci\u00f3n de aluminio fundido tiene un punto de fusi\u00f3n bajo y, por lo general, se funde en un crisol. La fundici\u00f3n en arena fina puede reducir la rugosidad superficial de la pieza fundida. Para evitar que el aluminio l\u00edquido se oxide y se produzcan salpicaduras durante el proceso de colada, se suele utilizar un sistema de colada abierto y se abren m\u00e1s canales internos. Los canales rectos suelen tener forma de serpiente o de cuello de cisne, de modo que la aleaci\u00f3n llene la cavidad de forma r\u00e1pida y suave, sin salpicaduras, remolinos ni impactos. Las piezas fundidas de aleaci\u00f3n de aluminio pueden fabricarse mediante diversos m\u00e9todos de fundici\u00f3n.<\/p>\n
La fundici\u00f3n y el vertido de aleaciones de aluminio son las etapas clave en la producci\u00f3n de piezas de fundici\u00f3n. El control riguroso de todo el proceso de fundici\u00f3n y colada desempe\u00f1a un papel importante a la hora de prevenir defectos en las piezas fundidas. El aluminio fundido tiene una gran tendencia a absorber hidr\u00f3geno, posee una fuerte capacidad oxidante y disuelve f\u00e1cilmente el hierro. Es necesario tomar precauciones sencillas y minuciosas durante el proceso de fundici\u00f3n y colada para obtener piezas fundidas de alta calidad.<\/p>","protected":false},"excerpt":{"rendered":"
Aluminum is an active metal element, and aluminum easily oxidizes and absorbs the gas in the aluminum casting process. The aluminum oxidation (Al2O3) has a…<\/p>","protected":false},"author":1,"featured_media":1566,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[35],"class_list":["post-1130","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-aluminum-casting-process"],"yoast_head":"\n
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