desgaseificador rotativo<\/a>\u00a0O processo de refino consiste no seguinte: o rotor girat\u00f3rio fragmenta o nitrog\u00eanio (ou arg\u00f4nio) injetado na massa fundida de alum\u00ednio em um grande n\u00famero de bolhas dispersas e as espalha pelo metal fundido. As bolhas absorvem o hidrog\u00eanio presente na massa fundida e ret\u00eam a esc\u00f3ria de \u00f3xido por meio da diferen\u00e7a de press\u00e3o parcial dos gases e do princ\u00edpio da adsor\u00e7\u00e3o superficial. \u00c0 medida que as bolhas sobem, elas s\u00e3o retiradas da superf\u00edcie do metal fundido para purific\u00e1-lo. Como as bolhas s\u00e3o finas e dispersas, elas se misturam uniformemente com o metal fundido em movimento e, em seguida, giram em forma de espiral, flutuando lentamente para cima e mantendo contato com o metal fundido por um longo per\u00edodo; assim, n\u00e3o se forma o fluxo de g\u00e1s gerado pela subida cont\u00ednua em linha reta, o que permite remover o hidrog\u00eanio prejudicial do alum\u00ednio fundido e melhorar significativamente o efeito de purifica\u00e7\u00e3o.<\/p>\n![\"Processo](\"http:\/\/alalloycasting.com\/wp-content\/uploads\/2020\/07\/Purification-Process-of-Liquid-Aluminum-1.jpg\")
<\/p>\n
Processo de purifica\u00e7\u00e3o do alum\u00ednio l\u00edquido<\/h2>\n
Existem no mercado diversos equipamentos de fundi\u00e7\u00e3o sob press\u00e3o e de fundi\u00e7\u00e3o para a fus\u00e3o de ligas de alum\u00ednio, incluindo fornos de fus\u00e3o centralizados, fornos de cadinho, fornos de banho, fornos el\u00e9tricos de manuten\u00e7\u00e3o de temperatura, etc. Portanto, os equipamentos de desgaseifica\u00e7\u00e3o tamb\u00e9m podem ser personalizados de acordo com os equipamentos de fundi\u00e7\u00e3o de ligas de alum\u00ednio, podendo ser fabricados como desgaseificadores de refino m\u00f3veis, fixos e suspensos.<\/p>\n
Existem tr\u00eas estados do hidrog\u00eanio dissolvido no alum\u00ednio fundido (estado at\u00f4mico, estado molecular e estado de composto, nos quais apenas a mol\u00e9cula de hidrog\u00eanio pode formar poros; a mol\u00e9cula de hidrog\u00eanio e o \u00e1tomo de hidrog\u00eanio se encontram em equil\u00edbrio din\u00e2mico, e as mol\u00e9culas de hidrog\u00eanio e os hidretos se separam imediatamente em diferentes formas durante o processo de cristaliza\u00e7\u00e3o do metal (os \u00e1tomos de hidrog\u00eanio se dispersam para a superf\u00edcie do metal e, em seguida, saem do estado de adsor\u00e7\u00e3o, enquanto as mol\u00e9culas de hidrog\u00eanio s\u00e3o evaporadas para remover o hidrog\u00eanio do metal l\u00edquido na forma de bolhas) Quando algumas das bolhas n\u00e3o conseguem subir at\u00e9 a interface, elas permanecem no metal fundido e causam poros de g\u00e1s na pe\u00e7a fundida.<\/p>","protected":false},"excerpt":{"rendered":"
Purification process of liquid aluminum alloy is the main means to improve the comprehensive properties of aluminum alloy. In the purification process, the purification gas…<\/p>","protected":false},"author":1,"featured_media":3301,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[138],"tags":[1761],"class_list":["post-3226","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-seo","tag-purification-process-of-liquid-aluminum"],"yoast_head":"\n
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