fluxo de refino<\/a> na forma de bolhas isoladas no metal fundido abaixo da superf\u00edcie da massa fundida;<\/p>\n![\"Refinamento](\"http:\/\/alalloycasting.com\/wp-content\/uploads\/2022\/01\/Refining-Metals.jpg\")
<\/p>\n
4. O metal fundido \u00e9 agitado na zona de refina\u00e7\u00e3o para formar um padr\u00e3o de circula\u00e7\u00e3o no metal fundido em rela\u00e7\u00e3o ao ponto de entrada das bolhas na massa fundida, de modo que as bolhas introduzidas na massa fundida sejam transportadas radialmente para fora em rela\u00e7\u00e3o ao ponto de entrada da bolha, prolongando assim o tempo de perman\u00eancia das bolhas de g\u00e1s no metal fundido e fazendo com que elas entrem em contato pr\u00f3ximo com quase toda a massa do metal fundido na zona de refina\u00e7\u00e3o;<\/p>\n
5. Extrair o g\u00e1s residual de refino e o g\u00e1s dissolvido liberado pelo metal, ao mesmo tempo em que se coletam e separam outras impurezas n\u00e3o met\u00e1licas presentes na camada de esc\u00f3ria na superf\u00edcie do metal fundido;<\/p>\n
6. O metal fundido refinado \u00e9 retirado da zona de refino.<\/p>\n
Uma caracter\u00edstica comum desses gases de refino \u00e9 que eles s\u00e3o inertes em rela\u00e7\u00e3o ao metal fundido que est\u00e1 sendo refinado. O arg\u00f4nio e o nitrog\u00eanio, ou misturas desses gases, s\u00e3o os preferidos, embora outros gases nobres da tabela peri\u00f3dica sejam adequados para uso na presente inven\u00e7\u00e3o. Outros gases de refino \u00fateis s\u00e3o o hidrog\u00eanio e o mon\u00f3xido de carbono, ou misturas entre si ou com gases nobres da tabela peri\u00f3dica. Deve-se observar que o hidrog\u00eanio e o mon\u00f3xido de carbono podem ser utilizados em situa\u00e7\u00f5es em que n\u00e3o reagem com o metal fundido, mas reagem com impurezas gasosas, como o oxig\u00eanio. Outros gases reativos com propriedades semelhantes tamb\u00e9m podem ser utilizados, tais como o hexafluoreto de enxofre, o cloro e os hidrocarbonetos halogenados. A sele\u00e7\u00e3o de um determinado g\u00e1s de refino baseia-se geralmente nas caracter\u00edsticas do metal espec\u00edfico que est\u00e1 sendo refinado.<\/p>","protected":false},"excerpt":{"rendered":"
The refining metals by refining gas efficiently removes dissolved gases and other non-metallic impurities from metals in a continuous process with high metal throughput. Molten…<\/p>","protected":false},"author":1,"featured_media":12290,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[644,13166],"class_list":["post-12289","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-molten-aluminum-refining","tag-refining-metals-with-flux-and-nitrogen"],"yoast_head":"\n
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