eliminaci\u00f3n de escoria<\/a> El efecto del aluminio fundido es limitado. Para mejorar el efecto de purificaci\u00f3n, cuantas m\u00e1s burbujas se generen al inyectar el gas refinado, cuanto menor sea el radio de las burbujas, cuanto m\u00e1s uniforme sea su distribuci\u00f3n y cuanto mayor sea el tiempo de inyecci\u00f3n, mejor ser\u00e1 el efecto de desgasificaci\u00f3n.<\/p>\nLa desgasificaci\u00f3n del hidr\u00f3geno se basa en el principio de la desgasificaci\u00f3n por diferencia de presi\u00f3n parcial. Debido a que existe una diferencia en la presi\u00f3n parcial de equilibrio entre la burbuja y el aluminio fundido, el hidr\u00f3geno disuelto en el metal se difunde continuamente hacia la burbuja. Este proceso no se detendr\u00e1 hasta que la presi\u00f3n parcial del hidr\u00f3geno en la burbuja sea igual a la presi\u00f3n parcial de equilibrio del hidr\u00f3geno en el aluminio fundido. Una vez que las burbujas ascienden a la superficie, el hidr\u00f3geno que contienen tambi\u00e9n se escapa a la atm\u00f3sfera. Por lo tanto, tanto las inclusiones oxidadas como el arg\u00f3n se expulsan durante el ascenso de la burbuja. La temperatura del gas arg\u00f3n debe mantenerse entre 710 y 720 \u2103 para evitar la formaci\u00f3n de nitruro de aluminio a ra\u00edz de la reacci\u00f3n entre el hidr\u00f3geno y el aluminio fundido.<\/p>","protected":false},"excerpt":{"rendered":"
Aluminum alloy liquid degassing of hydrogen can use the adsorption effect of refining agent to achieve the effect of removing oxidized impurities and gas. Inert…<\/p>","protected":false},"author":1,"featured_media":6398,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[],"class_list":["post-6397","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"\n
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