{"id":7217,"date":"2020-12-25T03:27:53","date_gmt":"2020-12-25T03:27:53","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=7217"},"modified":"2021-04-12T03:57:31","modified_gmt":"2021-04-12T03:57:31","slug":"molten-metal-refining","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/es\/molten-metal-refining\/","title":{"rendered":"Refinado de metal fundido"},"content":{"rendered":"<p>Durante el proceso de refinado y transporte del metal fundido, es f\u00e1cil que se introduzcan en \u00e9l materias extra\u00f1as \u2014como costra de \u00f3xido, compuestos intermet\u00e1licos y fragmentos del horno\u2014 que dan lugar a inclusiones no met\u00e1licas. Estas inclusiones no met\u00e1licas son, principalmente, inclusiones de \u00f3xido. Seg\u00fan el momento en que se forman durante el proceso de fundici\u00f3n y colada, pueden clasificarse en inclusiones de \u00f3xido primarias e inclusiones de \u00f3xido secundarias.<\/p>\n<p>Las inclusiones de \u00f3xido primarias se refieren principalmente a todas aquellas formadas antes de verter el aluminio fundido. Las inclusiones de \u00f3xido primarias pueden dividirse en dos tipos seg\u00fan su forma: por un lado, las inclusiones de gran tama\u00f1o con una distribuci\u00f3n irregular en la macroestructura. Este tipo de inclusiones hace que la estructura de la aleaci\u00f3n sea discontinua, reduce la estanqueidad de la pieza y se convierte en fuente de corrosi\u00f3n. Reducen significativamente la resistencia y la plasticidad de las aleaciones de aluminio y, a menudo, son la causa de grietas en las piezas. El segundo tipo de inclusiones de \u00f3xido se refiere a las inclusiones peque\u00f1as y dispersas, que no pueden eliminarse por completo ni siquiera tras una purificaci\u00f3n minuciosa. Aumentan la viscosidad del metal fundido y reducen la capacidad de alimentaci\u00f3n del aluminio fundido durante la solidificaci\u00f3n, lo que puede provocar f\u00e1cilmente la contracci\u00f3n de las piezas fundidas.<\/p>\n<p>Las inclusiones de \u00f3xido secundarias, tambi\u00e9n conocidas como inclusiones end\u00f3genas, se forman principalmente durante el proceso de fundici\u00f3n. En general, la distribuci\u00f3n de las inclusiones end\u00f3genas es relativamente uniforme y las part\u00edculas son relativamente peque\u00f1as. Las salpicaduras y la turbulencia del aluminio fundido durante el proceso de colada son las principales fuentes de inclusiones de \u00f3xido secundarias. En el molde de arena, el aluminio fundido reacciona con la humedad de la arena, y el agua se descompone en ox\u00edgeno e hidr\u00f3geno. El ox\u00edgeno reacciona con el aluminio para formar inclusiones de \u00f3xido, y el hidr\u00f3geno se disuelve en el aluminio fundido.<\/p>\n<p>Metal fundido <a href=\"http:\/\/www.alalloycasting.com\/es\/refining-flux\/\">fundente de refinado<\/a> Se utiliza principalmente para eliminar las inclusiones de \u00f3xido primario en los hornos. <a href=\"http:\/\/www.alalloycasting.com\/es\/ceramic-foam-filter-cff\/\">Filtro de espuma cer\u00e1mica<\/a> Puede filtrar las inclusiones del metal fundido; se utiliza principalmente para eliminar las inclusiones de \u00f3xido secundarias.<\/p>","protected":false},"excerpt":{"rendered":"<p>In the process of refining and transportation of molten metal, foreign matter such as oxide scale, intermetallic compounds, and hearth fragments are easily brought into&hellip;<\/p>","protected":false},"author":1,"featured_media":7218,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[],"class_list":["post-7217","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>Molten Metal Refining with Flux and Ceramic Foam Filter<\/title>\n<meta name=\"description\" content=\"Molten metal refining flux is mainly used for primary oxide inclusions removal. Ceramic foam filter can filter inclusions in molten metal.\" \/>\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\/molten-metal-refining\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Molten Metal Refining with Flux and Ceramic Foam Filter\" \/>\n<meta property=\"og:description\" content=\"Molten metal refining flux is mainly used for primary oxide inclusions removal. 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