{"id":10526,"date":"2021-10-11T07:39:09","date_gmt":"2021-10-11T07:39:09","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=10526"},"modified":"2021-10-11T07:39:09","modified_gmt":"2021-10-11T07:39:09","slug":"aluminum-melt-degassing-treatment","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/es\/aluminum-melt-degassing-treatment\/","title":{"rendered":"Tratamiento de desgasificaci\u00f3n del aluminio fundido"},"content":{"rendered":"<p>Como parte importante del tratamiento del aluminio fundido, la desgasificaci\u00f3n en l\u00ednea ha ido cobrando cada vez m\u00e1s importancia en las fundiciones de aluminio. La desgasificaci\u00f3n y la filtraci\u00f3n son procesos clave en el tratamiento del aluminio fundido. La desgasificaci\u00f3n en l\u00ednea se beneficia tanto del tratamiento del aluminio fundido en la fase previa al horno como de la filtraci\u00f3n posterior al proceso de tratamiento en l\u00ednea. Estos procesos de tratamiento se complementan entre s\u00ed, y su efecto global es mucho mejor que el de un \u00fanico proceso de tratamiento.<\/p>\n<p><strong>\u00bfPor qu\u00e9 hay que desgasificar el aluminio fundido?<\/strong><\/p>\n<p>El objetivo principal del dispositivo de desgasificaci\u00f3n en l\u00ednea es eliminar el hidr\u00f3geno del aluminio fundido. El hidr\u00f3geno es el \u00fanico gas que puede disolverse en el aluminio fundido. La solubilidad del hidr\u00f3geno disminuye r\u00e1pidamente a medida que el aluminio fundido se solidifica durante la fundici\u00f3n. En ese momento, el hidr\u00f3geno se escapa del aluminio fundido, lo que provoca la aparici\u00f3n de poros en las piezas de fundici\u00f3n de aluminio.<\/p>\n<p>El valor objetivo del contenido de hidr\u00f3geno disuelto depende de la aplicaci\u00f3n del producto final, oscilando entre 0,20 ml\/100 gAl para los lingotes de la serie 6000 de uso general y 0,10 ml\/100 gAl para los lingotes de laminaci\u00f3n destinados a aplicaciones aeroespaciales. Cuando se utilizan burbujas de gas inerte para eliminar el hidr\u00f3geno del aluminio fundido, se suelen emplear arg\u00f3n y nitr\u00f3geno. Dado que el nitr\u00f3geno tiende a generar nitruro de aluminio \u2014una inclusi\u00f3n nociva que puede producir m\u00e1s cenizas de aluminio\u2014, para obtener la mejor calidad del aluminio fundido es preferible utilizar arg\u00f3n. La adici\u00f3n de una peque\u00f1a cantidad de cloro gaseoso al utilizar gas inerte para la desgasificaci\u00f3n permite eliminar de forma m\u00e1s eficaz las inclusiones no humectantes y las impurezas de metales alcalinos.<\/p>\n<p>Las inclusiones presentes en el aluminio fundido proceden del proceso de producci\u00f3n de aluminio electrol\u00edtico, de la refundici\u00f3n en el horno o de los aditivos internos. Las inclusiones pueden provocar desgarros y defectos superficiales durante el laminado de chapas, poros durante el laminado de papel de aluminio, y causar y aumentar el desgaste de los troqueles durante la extrusi\u00f3n de aluminio. La reducci\u00f3n de las inclusiones no humectantes en el 50% mediante el sistema de desgasificaci\u00f3n es un indicador representativo. La filtraci\u00f3n mec\u00e1nica adicional (es decir, <a href=\"http:\/\/www.alalloycasting.com\/es\/foam-ceramic-filter-foundry\/\">filtro cer\u00e1mico de espuma<\/a>) es tambi\u00e9n una forma de cumplir con el \u00edndice de calidad.<\/p>","protected":false},"excerpt":{"rendered":"<p>As an important part of aluminum melt treatment, online degassing has been paid more and more attention by the aluminum foundry. Degassing and filtering are&hellip;<\/p>","protected":false},"author":1,"featured_media":10528,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[],"class_list":["post-10526","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Aluminum Melt Degassing Treatment, Online Degassing Equipment<\/title>\n<meta name=\"description\" content=\"As an important part of aluminum melt treatment, online degassing has been paid more and more attention by the aluminum foundry.\" \/>\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.alalloycasting.com\/es\/aluminum-melt-degassing-treatment\/\" \/>\n<meta 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