{"id":5049,"date":"2020-09-25T03:23:57","date_gmt":"2020-09-25T03:23:57","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=5049"},"modified":"2020-09-25T03:23:57","modified_gmt":"2020-09-25T03:23:57","slug":"online-degassing","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/es\/online-degassing\/","title":{"rendered":"Desgasificaci\u00f3n en l\u00ednea"},"content":{"rendered":"

Dado que la desgasificaci\u00f3n en l\u00ednea se lleva a cabo durante el flujo del aluminio fundido y el tiempo de contacto del nitr\u00f3geno con el fundido es breve, su eficiencia de desgasificaci\u00f3n es inferior a la de la refinaci\u00f3n en horno. Tras el desgasificado en l\u00ednea, las inclusiones restantes y el hidr\u00f3geno adsorbido en el metal fundido ya son muy reducidos. Sin embargo, durante el proceso de flujo del metal fundido, las inclusiones se ven arrastradas e incorporadas, por lo que la parte restante de hidr\u00f3geno es la m\u00e1s dif\u00edcil de eliminar.<\/p>\n

Tras el filtrado, el contenido de hidr\u00f3geno volvi\u00f3 a descender, lo que indica que el CFF tiene cierta capacidad para eliminar el hidr\u00f3geno. El mecanismo se debe a que el contenido de hidr\u00f3geno en el aluminio fundido se ve muy afectado por el contenido de inclusiones. Con el mismo contenido de hidr\u00f3geno, cuanto mayor es el contenido de inclusiones, mayor es la tasa de poros del lingote. E incluso con una baja concentraci\u00f3n de hidr\u00f3geno, la tasa de poros sigue siendo muy elevada, y resulta dif\u00edcil eliminarla mediante m\u00e9todos convencionales. Por el contrario, cuando el contenido de inclusiones en el aluminio fundido es muy bajo, el contenido de hidr\u00f3geno tambi\u00e9n es bajo. Incluso si se inyecta hidr\u00f3geno artificialmente en el aluminio fundido, este se escapar\u00e1 autom\u00e1ticamente y volver\u00e1 al contenido original. Este es el denominado \u00abmecanismo par\u00e1sito de inclusi\u00f3n de hidr\u00f3geno\u00bb. Es decir, la sobresaturaci\u00f3n alcanzada antes de la formaci\u00f3n de la burbuja de hidr\u00f3geno depende del n\u00famero de nucleaciones de burbujas de hidr\u00f3geno, y los \u00f3xidos y otras inclusiones act\u00faan como n\u00facleo de las burbujas.<\/p>\n

\"Desgasificaci\u00f3n<\/p>\n

AdTech filtro de espuma cer\u00e1mica<\/a> Aplica el principio de adsorci\u00f3n para la filtraci\u00f3n, lo que permite eliminar eficazmente las inclusiones de gran tama\u00f1o del aluminio fundido y adsorber con eficacia las inclusiones de tama\u00f1o microm\u00e9trico; adem\u00e1s, la precisi\u00f3n de filtraci\u00f3n con el mismo tama\u00f1o de malla es elevada. Cuenta con la funci\u00f3n de mejorar la calidad de la superficie, el rendimiento del producto y la microestructura. No deja escoria y reduce eficazmente la contaminaci\u00f3n del aluminio fundido. Buena resistencia al choque t\u00e9rmico y mayor resistencia a la corrosi\u00f3n por el metal fundido. Producci\u00f3n en cadena de montaje automatizada, tres procedimientos de calibraci\u00f3n, dimensiones precisas, m\u00e1s adecuado para la caja de filtrado.<\/p>","protected":false},"excerpt":{"rendered":"

Because online degassing is degassing during the flow of the aluminum melt, and the time for nitrogen to contact the melt is short, its degassing…<\/p>","protected":false},"author":1,"featured_media":5089,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[],"class_list":["post-5049","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"\nOnline Degassing and Filtering for Molten Aluminum<\/title>\n<meta name=\"description\" content=\"After online degassing, the remaining inclusions and hydrogen in melt are very small. 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