{"id":11427,"date":"2021-11-25T06:05:05","date_gmt":"2021-11-25T06:05:05","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=11427"},"modified":"2023-02-08T01:40:14","modified_gmt":"2023-02-08T01:40:14","slug":"degassing-of-aluminum","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/es\/degassing-of-aluminum\/","title":{"rendered":"Desgasificaci\u00f3n del aluminio"},"content":{"rendered":"<p>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 tal y como lo har\u00eda si se liberara en un espacio cerrado. Mantendr\u00e1 una concentraci\u00f3n constante durante todo el proceso de fusi\u00f3n. El hidr\u00f3geno gaseoso puede migrar a trav\u00e9s del metal l\u00edquido casi tan r\u00e1pido como a trav\u00e9s del aire. Por lo tanto, no es necesario que cada onza de metal est\u00e9 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 dicha transferencia.<\/p>\n<p>Al fundir chatarra de aluminio, el proceso de eliminaci\u00f3n del exceso de hidr\u00f3geno es esencial para producir piezas de fundici\u00f3n de aluminio de calidad.<\/p>\n<p>El hidr\u00f3geno se introduce a trav\u00e9s de la humedad. El exceso de hidr\u00f3geno tiene un efecto negativo en las propiedades mec\u00e1nicas del aluminio acabado, ya que provoca porosidad y contracci\u00f3n general. Es importante eliminar el exceso de hidr\u00f3geno durante el proceso de fusi\u00f3n y colada.<\/p>\n<p>La introducci\u00f3n de gases inertes, como el arg\u00f3n o el nitr\u00f3geno, en el metal fundido puede servir para eliminar el hidr\u00f3geno. A medida que las burbujas de gas inerte ascienden a trav\u00e9s del aluminio fundido, el hidr\u00f3geno se difunde en ellas y, en esencia, desaparece. Los sistemas de desgasificaci\u00f3n tradicionales limitan la mezcla, especialmente en la parte inferior, donde se requieren velocidades m\u00e1s altas, lo que provoca una mayor turbulencia en la superficie. Las burbujas son m\u00e1s grandes y la desgasificaci\u00f3n tarda m\u00e1s en alcanzar los resultados deseados. Los fundidores buscan un mayor cizallamiento y dispersi\u00f3n de las burbujas, un mayor tiempo de retenci\u00f3n de las burbujas en el metal, una circulaci\u00f3n completa del metal fundido, un rotor que no se obstruya y una mayor resistencia al choque t\u00e9rmico. Adem\u00e1s, preferir\u00edan utilizar menos gas inerte en el proceso.<\/p>\n<p>AdTech <a href=\"http:\/\/www.alalloycasting.com\/es\/rotary-degassing-machines\/\">m\u00e1quinas de desgasificaci\u00f3n rotativas<\/a> Utiliza componentes de grafito, que son esenciales para un procesamiento satisfactorio del metal. El cabezal del rotor proporciona un mayor movimiento del metal, lanz\u00e1ndolo hacia fuera y extray\u00e9ndolo desde abajo para lograr una mejor circulaci\u00f3n. El movimiento giratorio \u00fanico del cabezal del rotor rompe las burbujas para evitar que el gas suba. El rotor, de ingenioso dise\u00f1o, empuja el metal hacia fuera y lo extrae desde el fondo para mejorar el flujo, aumentando as\u00ed la superficie de reacci\u00f3n. Funciona a una velocidad menor y elimina los \u201cpuntos muertos\u201d en la masa fundida.<\/p>\n<p>AdTech es una empresa especializada en el desarrollo de nuevos materiales y en la fabricaci\u00f3n de unidades de desgasificaci\u00f3n en l\u00ednea de alta precisi\u00f3n desde 2012, y ha recibido valoraciones positivas tanto en el mercado nacional como en el internacional.<\/p>","protected":false},"excerpt":{"rendered":"<p>The degassing of aluminum is based on the principle that dissolved hydrogen gas will move from an area of \u200b\u200bhigh concentration (in the melt) to&hellip;<\/p>","protected":false},"author":1,"featured_media":11431,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[4312,119],"class_list":["post-11427","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-degassing-of-aluminum","tag-rotary-degassing-system"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Degassing of Aluminum, Rotary Degassing System<\/title>\n<meta name=\"description\" content=\"The degassing of aluminum principle is that dissolved hydrogen gas will move from an area of \u200b\u200bhigh concentration to \u200b\u200blow concentration.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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