fundente de refinado<\/a> para formar compuestos que pueden separarse del aluminio y que son arrastrados a la escoria de refinado y eliminados mediante la adsorci\u00f3n del fundente de refinado.<\/p>\nEn el proceso de refinado, desgasificaci\u00f3n y transporte del metal fundido de aluminio, es f\u00e1cil que se introduzcan en el metal fundido materias extra\u00f1as, como escoria, compuestos intermet\u00e1licos y residuos del horno, 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 los procesos de fusi\u00f3n y colada, pueden clasificarse en inclusiones de \u00f3xido primarias e inclusiones de \u00f3xido secundarias.<\/p>\n
![\"Desgasificaci\u00f3n](\"http:\/\/alalloycasting.com\/wp-content\/uploads\/2020\/08\/Aluminum-Refining-Degassing.jpg\")
<\/p>\n
Las inclusiones de \u00f3xido primarias se refieren principalmente a todas aquellas que se forman antes de verter el aluminio fundido. Las inclusiones de \u00f3xido secundarias 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. Algunas de estas inclusiones provocan discontinuidades en la estructura de la aleaci\u00f3n y reducen la estanqueidad de la pieza. Corrosi\u00f3n. La reducci\u00f3n de la resistencia y la plasticidad de la aleaci\u00f3n de aluminio suele ser la causa principal de las grietas en las piezas. El segundo tipo de inclusiones de \u00f3xido son las peque\u00f1as inclusiones dispersas, que no pueden eliminarse por completo ni siquiera tras una purificaci\u00f3n minuciosa. Aumentan la viscosidad del metal fundido, reducen la capacidad de alimentaci\u00f3n del aluminio fundido durante la solidificaci\u00f3n y provocan f\u00e1cilmente la contracci\u00f3n de la pieza fundida.<\/p>\n
Las inclusiones de \u00f3xido secundarias, tambi\u00e9n conocidas como inclusiones end\u00f3genas, se forman principalmente durante el proceso de fundici\u00f3n. Las inclusiones end\u00f3genas suelen distribuirse de forma m\u00e1s uniforme y presentar part\u00edculas m\u00e1s peque\u00f1as. La turbulencia provocada por las salpicaduras de aluminio fundido durante la fundici\u00f3n se debe a la interacci\u00f3n entre la al\u00famina del molde de arena y el agua presente en la arena de moldeo, lo que provoca que el agua se descomponga en ox\u00edgeno e hidr\u00f3geno. El ox\u00edgeno reacciona con el aluminio para formar inclusiones de \u00f3xido, mientras que el hidr\u00f3geno descompone el aluminio fundido.<\/p>","protected":false},"excerpt":{"rendered":"
Aluminum Refining Degassing: in the smelting process of aluminum alloy, refining flux is added to the furnace for degassing processing. In aluminum and aluminum alloy…<\/p>","protected":false},"author":1,"featured_media":4024,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[4499],"class_list":["post-4023","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-aluminum-refining-degassing"],"yoast_head":"\n
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