{"id":2487,"date":"2017-10-23T08:58:15","date_gmt":"2017-10-23T08:58:15","guid":{"rendered":"http:\/\/www.adtechamm.com\/?p=2487"},"modified":"2017-11-08T09:13:34","modified_gmt":"2017-11-08T09:13:34","slug":"casting-knowledge-aluminum-degassing-1","status":"publish","type":"post","link":"https:\/\/www.adtechamm.com\/es\/casting-knowledge-aluminum-degassing-1\/","title":{"rendered":"Conocimientos sobre fundici\u00f3n: Desgasificaci\u00f3n del aluminio 1"},"content":{"rendered":"

La desgasificaci\u00f3n del aluminio se basa en el principio de que el hidr\u00f3geno gaseoso disuelto se desplaza desde una zona de alta concentraci\u00f3n (en la masa fundida) hacia una zona de baja concentraci\u00f3n (en el gas inerte). El hidr\u00f3geno gaseoso se dispersa en el metal fundido del mismo modo que lo har\u00eda si se liberara en cualquier espacio cerrado. Mantendr\u00e1 una concentraci\u00f3n constante en toda la masa fundida. El hidr\u00f3geno gaseoso puede migrar en el metal l\u00edquido casi tan r\u00e1pido como lo hace en el aire. Por lo tanto, no es necesario que cada onza de metal entre en contacto con el gas inerte. La eficiencia de la desgasificaci\u00f3n del aluminio viene determinada por dos factores: la velocidad de transferencia a trav\u00e9s de la interfaz metal\/gas y la superficie total disponible para la transferencia.<\/p>\n

\"\"<\/p>\n

Los sistemas tradicionales de desgasificaci\u00f3n de hidr\u00f3geno hac\u00edan burbujear gases especiales (cloro, fre\u00f3n o SF\u2086) a trav\u00e9s del metal para acelerar la transferencia de hidr\u00f3geno a trav\u00e9s de la interfaz metal-gas, formando grandes burbujas. Exist\u00eda un l\u00edmite pr\u00e1ctico para la eliminaci\u00f3n del hidr\u00f3geno en d\u00edas h\u00famedos, ya que, al romperse las grandes burbujas en la superficie, se creaba una mayor superficie met\u00e1lica expuesta que, a su vez, absorb\u00eda m\u00e1s hidr\u00f3geno de la atm\u00f3sfera h\u00fameda.<\/p>\n

El cloro fue inicialmente el gas elegido, pero debido a su naturaleza peligrosa, la mayor\u00eda de las fundiciones pasaron a utilizar otros gases. Sin embargo, muchas fundiciones no han tenido en cuenta los materiales peligrosos que se liberan al descomponerse cualquier gas especial que se utilice.<\/p>","protected":false},"excerpt":{"rendered":"

The degassing of aluminum is based on the principle that dissolved hydrogen gas will move from an area of high concentration (in the melt) to an area of low concentration (in the inert gas). Hydrogen gas disperses in molten metal as it would if it…<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[52],"tags":[],"yoast_head":"\nCasting knowledge-Aluminum Degassing 1 | Adtech China<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.adtechamm.com\/es\/casting-knowledge-aluminum-degassing-1\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Casting knowledge-Aluminum Degassing 1 | Adtech China\" \/>\n<meta property=\"og:description\" content=\"The degassing of aluminum is based on the principle that dissolved hydrogen gas will move from an area of high concentration (in the melt) to an area of low concentration (in the inert gas). 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