{"id":1300,"date":"2020-04-21T07:37:31","date_gmt":"2020-04-21T07:37:31","guid":{"rendered":"http:\/\/alalloycasting.com\/?p=1300"},"modified":"2020-08-28T06:10:18","modified_gmt":"2020-08-28T06:10:18","slug":"aluminium-degassing-process","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/es\/aluminium-degassing-process\/","title":{"rendered":"Proceso de desgasificaci\u00f3n del aluminio"},"content":{"rendered":"<p>El proceso de desgasificaci\u00f3n del aluminio permite purificar el metal mediante la eliminaci\u00f3n del hidr\u00f3geno gaseoso y de las impurezas metal\u00fargicas. La desgasificaci\u00f3n rotativa se basa en el principio de aumentar la superficie de contacto del gas de inyecci\u00f3n expuesto al metal. Cuanto mayor es la superficie de contacto, mayor es la velocidad de transferencia del metal al gas inerte. Cuanto menor es el tama\u00f1o de las burbujas para un volumen determinado de gas, mayor es la superficie de contacto. Las burbujas m\u00e1s peque\u00f1as alteran menos la superficie del metal fundido, lo que reduce la absorci\u00f3n adicional de hidr\u00f3geno procedente de atm\u00f3sferas h\u00famedas.<\/p>\n<p>A medida que aumenta la demanda de productos de aluminio de mayor calidad, especialmente en la industria aeroespacial, es necesario reducir las inclusiones en las piezas de fundici\u00f3n. Las inclusiones provocan defectos en la estructura de la pieza de fundici\u00f3n y tienen un efecto perjudicial sobre sus propiedades mec\u00e1nicas. Adem\u00e1s, pueden causar dificultades en el mecanizado.<\/p>\n<p>Las impurezas presentes en el aluminio fundido pueden clasificarse en dos tipos principales: hidr\u00f3geno disuelto e inclusiones s\u00f3lidas no met\u00e1licas. A medida que el metal se enfr\u00eda y se forman porosidades no deseadas, el hidr\u00f3geno disuelto se separa de la soluci\u00f3n. Estas porosidades y las inclusiones s\u00f3lidas no met\u00e1licas reducen la resistencia y afectan a las propiedades finales de las piezas de fundici\u00f3n de aluminio.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-1589\" src=\"http:\/\/alalloycasting.com\/wp-content\/uploads\/2020\/05\/Rotary-Degassing-Machines.jpg\" alt=\"M\u00e1quinas rotativas de desgasificaci\u00f3n\" width=\"500\" height=\"400\" srcset=\"https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/05\/Rotary-Degassing-Machines.jpg 500w, https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/05\/Rotary-Degassing-Machines-300x240.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/p>\n<h2>Proceso de desgasificaci\u00f3n del aluminio<\/h2>\n<p>Los sistemas tradicionales de desgasificaci\u00f3n de hidr\u00f3geno utilizan gases especiales. El cloro era el gas que se utilizaba originalmente, 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 las sustancias peligrosas que se liberan al descomponerse cualquier gas especial utilizado. En la actualidad, la mayor\u00eda de los fabricantes utilizan un gas inerte (nitr\u00f3geno o arg\u00f3n) para eliminar el hidr\u00f3geno.<\/p>\n<p>El <a href=\"https:\/\/www.alalloycasting.com\/es\/degassing-unit\/\">proceso de desgasificaci\u00f3n rotativa<\/a> elimina estas impurezas mediante nitr\u00f3geno. El gas se introduce normalmente mediante un rotor de desgasificaci\u00f3n, que reduce el tama\u00f1o de las burbujas y dispersa el nitr\u00f3geno por todo el metal fundido. A medida que las burbujas de gas resultantes ascienden a trav\u00e9s del metal fundido, absorben el hidr\u00f3geno disuelto en el metal y lo eliminan. Adem\u00e1s, las part\u00edculas s\u00f3lidas no met\u00e1licas son arrastradas hacia la superficie por el efecto de flotaci\u00f3n.<\/p>","protected":false},"excerpt":{"rendered":"<p>The aluminium degassing process can clean metal by removing hydrogen gas, metallurgical impurities. Rotary degassing works on the principle of increasing the surface area of&hellip;<\/p>","protected":false},"author":1,"featured_media":1567,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[18,138],"tags":[90,19],"class_list":["post-1300","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-degassing-unit","category-seo","tag-aluminum-degassing","tag-degassing-unit"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Aluminium Degassing Process | How to Degas Molten Aluminum<\/title>\n<meta name=\"description\" content=\"Aluminium degassing process can clean metal by removing gas and impurities. 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