{"id":10040,"date":"2021-08-24T07:47:57","date_gmt":"2021-08-24T07:47:57","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=10040"},"modified":"2021-08-24T07:47:57","modified_gmt":"2021-08-24T07:47:57","slug":"metal-degassing-refining","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/es\/metal-degassing-refining\/","title":{"rendered":"Desgasificaci\u00f3n y refinado de metales"},"content":{"rendered":"

Los m\u00e9todos habituales de refinado rotativo con desgasificaci\u00f3n de metales son el refinado por desgasificaci\u00f3n y el refinado por pulverizaci\u00f3n de polvo. El principio consiste en hacer pasar gas inerte o un agente de refinado hasta el fondo del horno.<\/p>\n

El agente refinador<\/a> es muy ligero, y el gas inerte o el agente de refinado comienza a ascender desde el fondo del horno; durante este proceso de ascenso, el hidr\u00f3geno y la espuma presentes en el aluminio fundido se eliminan, con el fin de purificar el aluminio fundido.<\/p>\n

El unidad de desgasificaci\u00f3n<\/a> Utilizado en el proceso de desgasificaci\u00f3n del refinado, acciona la placa de brida a trav\u00e9s del motor, y dicha placa est\u00e1 conectada al rotor de grafito para que gire.<\/p>\n

El efecto de refinado de la pulverizaci\u00f3n rotativa de polvo es mejor, pero el rotor de grafito se obstruye con facilidad. En la producci\u00f3n, para el refinado se suele utilizar gas inerte seco o nitr\u00f3geno de alta pureza. El gas se conecta a la brida; esta comienza a girar impulsada por el motor, y el rotor de grafito gira con ella a una velocidad de 400 a 600 r\/min, y el caudal de gas inerte (arg\u00f3n) se controla entre 15 y 25 L\/min, el de nitr\u00f3geno entre 20 y 40 L\/min, y la presi\u00f3n es de (0,4 \u00b1 0,1) MPa.<\/p>\n

\"M\u00e9todo<\/p>\n

Proceso de funcionamiento del equipo de refinado y desgasificaci\u00f3n por rotaci\u00f3n de metales<\/strong><\/p>\n

En primer lugar, abre la v\u00e1lvula de gas; a continuaci\u00f3n, baja lentamente el desgasificador hasta que la distancia entre el rotor de grafito del desgasificador y el fondo de la cuchara sea de 100-150 mm; y, por \u00faltimo, enciende el motor para iniciar el desgasificado y el refinado.<\/p>\n

El tiempo de refinado es de 10 a 20 minutos. Para evitar el v\u00f3rtice provocado por la rotaci\u00f3n a alta velocidad del rotor de grafito, se coloca una placa deflectora en uno o ambos lados del rotor de grafito con el fin de reducir la turbulencia del aluminio fundido durante la rotaci\u00f3n. Cuando el rotor de grafito est\u00e1 desgasificando, garantiza que las burbujas sean peque\u00f1as, que la dispersi\u00f3n sea elevada y que el efecto sea bueno, de modo que se pueda asegurar el efecto de desgasificaci\u00f3n y que las burbujas no rompan la pel\u00edcula de \u00f3xido superficial ni provoquen ebullici\u00f3n, evitando as\u00ed la inhalaci\u00f3n secundaria.<\/p>\n

Una vez finalizada la desgasificaci\u00f3n, apaga el motor, retira el rotor de grafito de la superficie del l\u00edquido y, a continuaci\u00f3n, cierra la v\u00e1lvula de gas.<\/p>","protected":false},"excerpt":{"rendered":"

The common methods of metal degassing rotary refining are degassing refining and powder spraying refining. The principle is to pass inert gas or refining agent…<\/p>","protected":false},"author":1,"featured_media":10041,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[12494,12495],"class_list":["post-10040","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-metal-degassing-refining","tag-rotating-degassing-equipment"],"yoast_head":"\nMetal Degassing Refining, Rotating Degassing Equipment<\/title>\n<meta name=\"description\" content=\"The common methods of metal degassing rotary refining are degassing refining and powder spraying refining. 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