{"id":6877,"date":"2020-12-07T03:15:33","date_gmt":"2020-12-07T03:15:33","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=6877"},"modified":"2020-12-07T03:15:33","modified_gmt":"2020-12-07T03:15:33","slug":"rotating-rotor-degassing","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/pt\/rotating-rotor-degassing\/","title":{"rendered":"Desgaseamento por rotor girat\u00f3rio"},"content":{"rendered":"

O objetivo da desgaseifica\u00e7\u00e3o por rotor girat\u00f3rio \u00e9 fragmentar as grandes bolhas de g\u00e1s inerte em bolhas muito finas e fazer com que elas se dispersem uniformemente no metal fundido. Ao reduzir o di\u00e2metro das bolhas, a superf\u00edcie do g\u00e1s purificado \u00e9 ativamente ampliada, o que permite que mais superf\u00edcies das bolhas de g\u00e1s inerte entrem em contato com o hidrog\u00eanio e as impurezas no metal fundido, levando essas subst\u00e2ncias nocivas \u00e0 superf\u00edcie do l\u00edquido.<\/p>\n

O segredo da desgaseifica\u00e7\u00e3o do rotor girat\u00f3rio reside no fato de que o rotor \u00e9 capaz de dispersar as grandes bolhas de g\u00e1s inerte em bolhas muito pequenas e difundi-las por todo o metal fundido. Ao reduzir o di\u00e2metro das bolhas, a superf\u00edcie do g\u00e1s purificado \u00e9 consideravelmente ampliada, o que permite que mais superf\u00edcies do g\u00e1s inerte entrem em contato com o hidrog\u00eanio e as impurezas presentes no metal fundido.<\/p>\n

O controle de vaz\u00e3o do g\u00e1s inerte permite ajustar o fluxo do g\u00e1s de acordo com o volume do metal l\u00edquido a ser processado, e a velocidade da haste girat\u00f3ria e do rotor pode ser ajustada para gerar bolhas de tamanho adequado, a fim de facilitar a difus\u00e3o do g\u00e1s inerte.<\/p>\n

\"Desgaseamento<\/p>\n

O design padr\u00e3o do AdTech unidade de desgaseifica\u00e7\u00e3o<\/a> O rotor girat\u00f3rio \u00e9 feito de nitreto de sil\u00edcio, e sua vida \u00fatil \u00e9 superior a 2 anos (a vida \u00fatil m\u00e1xima pode chegar a 5 anos). Apresenta grandes vantagens em termos de resist\u00eancia \u00e0 corros\u00e3o do alum\u00ednio, resist\u00eancia ao choque t\u00e9rmico, resist\u00eancia \u00e0 oxida\u00e7\u00e3o, resist\u00eancia \u00e0 abras\u00e3o, resist\u00eancia mec\u00e2nica, etc. Pode permanecer imerso por um longo per\u00edodo sem sofrer abras\u00e3o. O eixo tem 60 mm e o di\u00e2metro da cabe\u00e7a \u00e9 de 200 mm. Minimiza a resist\u00eancia \u00e0 agita\u00e7\u00e3o da massa fundida. O projeto de alta velocidade, de 450 a 550 rpm, permite romper as bolhas ao m\u00e1ximo e dispers\u00e1-las por todos os cantos da cavidade interna na maior \u00e1rea poss\u00edvel. N\u00e3o haver\u00e1 altera\u00e7\u00e3o no desempenho, e o efeito de desgaseifica\u00e7\u00e3o permanecer\u00e1 est\u00e1vel a longo prazo. A estabilidade da efici\u00eancia de desgaseifica\u00e7\u00e3o \u00e9 excelente, a vida \u00fatil \u00e9 a melhor poss\u00edvel e o custo de m\u00e3o de obra para substituir o rotor \u00e9 menor.<\/p>","protected":false},"excerpt":{"rendered":"

The purpose of the rotating rotor degassing is to break up the large inert gas bubbles into very fine small bubbles and make them evenly…<\/p>","protected":false},"author":1,"featured_media":6879,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[138],"tags":[],"class_list":["post-6877","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-seo"],"yoast_head":"\nRotating Rotor Degassing Molten Aluminum with Inert Gas<\/title>\n<meta name=\"description\" content=\"Rotating rotor degassing can break up the large inert gas bubbles into very fine small bubbles, make them evenly dispersed 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\/pt\/rotating-rotor-degassing\/\" \/>\n<meta property=\"og:locale\" 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