unidade de desgaseifica\u00e7\u00e3o<\/a> \u00c9 fabricado em SiN. A vida \u00fatil \u00e9 de 2 a 5 anos. Apresenta bom desempenho em termos de resist\u00eancia \u00e0 corros\u00e3o, resist\u00eancia ao choque t\u00e9rmico, resist\u00eancia \u00e0 oxida\u00e7\u00e3o, resist\u00eancia \u00e0 abras\u00e3o e resist\u00eancia mec\u00e2nica. O di\u00e2metro do eixo \u00e9 de 60 mm e o di\u00e2metro da cabe\u00e7a \u00e9 de 200 mm, o que reduz a resist\u00eancia durante a agita\u00e7\u00e3o. A velocidade projetada de 450 a 550 R\/M rompe as bolhas e dispersa uniformemente o alum\u00ednio. \u00c9 econ\u00f4mico em uso prolongado.<\/p>\nO m\u00e9todo de desgaseifica\u00e7\u00e3o por rotor girat\u00f3rio permite que o di\u00e2metro das bolhas seja muito pequeno, de modo que o efeito de agita\u00e7\u00e3o das bolhas na superf\u00edcie do l\u00edquido se torna m\u00ednimo, permitindo assim um aumento relativo do fluxo de g\u00e1s. Para alcan\u00e7ar alta efici\u00eancia de desgaseifica\u00e7\u00e3o, \u00e9 necess\u00e1rio garantir um determinado fluxo de g\u00e1s. O fluxo de ar \u00e9 geralmente o principal fator que influencia o efeito de desgaseifica\u00e7\u00e3o da flota\u00e7\u00e3o por bolhas. Nas mesmas condi\u00e7\u00f5es, o aumento do fluxo de g\u00e1s aumentar\u00e1 a \u00e1rea de superf\u00edcie espec\u00edfica de contato g\u00e1s-l\u00edquido.<\/p>\n
Devido ao efeito de agita\u00e7\u00e3o causado pelo rotor em rota\u00e7\u00e3o no alum\u00ednio fundido, o alum\u00ednio fundido fica em movimento, o que intensifica a renova\u00e7\u00e3o da interface g\u00e1s-l\u00edquido, o que \u00e9 ben\u00e9fico para melhorar a capacidade de transfer\u00eancia de massa do alum\u00ednio fundido.<\/p>\n
Devido ao movimento ascendente n\u00e3o linear das bolhas no alum\u00ednio fundido, o tempo de perman\u00eancia das bolhas no alum\u00ednio fundido \u00e9 relativamente longo; ou seja, o tempo de desidrogena\u00e7\u00e3o decorrente da a\u00e7\u00e3o das bolhas \u00e9 aumentado, de modo que o efeito de desidrogena\u00e7\u00e3o das bolhas possa ser plenamente exercido.<\/p>\n
As bolhas est\u00e3o distribu\u00eddas uniformemente no alum\u00ednio fundido, o que pode reduzir a dist\u00e2ncia de difus\u00e3o dos \u00e1tomos de hidrog\u00eanio no alum\u00ednio fundido at\u00e9 as bolhas, de modo que o processo de difus\u00e3o em toda a massa fundida \u00e9 intensificado e as condi\u00e7\u00f5es de transfer\u00eancia de massa s\u00e3o efetivamente melhoradas.<\/p>","protected":false},"excerpt":{"rendered":"
The rotating rotor degassing method can give full play to the hydrogen removal advantages of the bubble floatation method. The key is that the liquid…<\/p>","protected":false},"author":1,"featured_media":9805,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[90,12338],"class_list":["post-9800","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-aluminum-degassing","tag-dgeassing-rotor"],"yoast_head":"\n
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