{"id":10104,"date":"2021-08-28T06:55:33","date_gmt":"2021-08-28T06:55:33","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=10104"},"modified":"2021-08-26T07:00:29","modified_gmt":"2021-08-26T07:00:29","slug":"rotary-metal-degassing","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/pt\/rotary-metal-degassing\/","title":{"rendered":"Desgaseifica\u00e7\u00e3o rotativa de metais"},"content":{"rendered":"<p>O m\u00e9todo de desgaseifica\u00e7\u00e3o rotativa de metais \u00e9, atualmente, o m\u00e9todo mais utilizado para a desgaseifica\u00e7\u00e3o e purifica\u00e7\u00e3o do alum\u00ednio fundido. A unidade de desgaseifica\u00e7\u00e3o online da AdTech adota esse m\u00e9todo de desgaseifica\u00e7\u00e3o para a purifica\u00e7\u00e3o do alum\u00ednio fundido.<\/p>\n<p>O princ\u00edpio do m\u00e9todo de desgaseifica\u00e7\u00e3o rotativa de metais consiste em fazer passar g\u00e1s inerte ou g\u00e1s ativo insol\u00favel no alum\u00ednio fundido para dentro do alum\u00ednio fundido, ou adicionar sal de cloro (cloreto) para que reaja com o alum\u00ednio fundido e gere um g\u00e1s, o que produz um grande n\u00famero de bolhas que escapam do alum\u00ednio fundido. Como a press\u00e3o parcial do hidrog\u00eanio na bolha \u00e9 PH=0, o hidrog\u00eanio dissolvido no alum\u00ednio fundido continuar\u00e1 a entrar na bolha. Esse processo ocorre at\u00e9 que a press\u00e3o parcial do hidrog\u00eanio na bolha aumente para atingir a concentra\u00e7\u00e3o de hidrog\u00eanio no alum\u00ednio fundido (H)=K. A rela\u00e7\u00e3o PH s\u00f3 se estabelece quando o equil\u00edbrio \u00e9 alcan\u00e7ado. Depois que as bolhas sobem \u00e0 superf\u00edcie, o hidrog\u00eanio contido nelas se dissipa na atmosfera. Portanto, a gera\u00e7\u00e3o cont\u00ednua de bolhas permite a remo\u00e7\u00e3o cont\u00ednua do hidrog\u00eanio dissolvido no alum\u00ednio l\u00edquido.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-9929\" src=\"http:\/\/alalloycasting.com\/wp-content\/uploads\/2021\/08\/Gas-Purification-Process.jpg\" alt=\"Processo de purifica\u00e7\u00e3o de g\u00e1s\" width=\"500\" height=\"400\" srcset=\"https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2021\/08\/Gas-Purification-Process.jpg 500w, https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2021\/08\/Gas-Purification-Process-300x240.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/p>\n<p>Os \u00e1tomos de hidrog\u00eanio dissolvidos no alum\u00ednio l\u00edquido migram para a superf\u00edcie da bolha purificada e s\u00e3o adsorvidos na superf\u00edcie da bolha, formando hidretos e entrando na bolha de hidrog\u00eanio. Por fim, o alum\u00ednio fundido escapa \u00e0 medida que as bolhas sobem, completando a desgaseifica\u00e7\u00e3o e a purifica\u00e7\u00e3o do alum\u00ednio fundido. Trata-se de um processo no qual o hidrog\u00eanio se difunde na fase l\u00edquida e \u00e9 adsorvido pelas bolhas.<\/p>\n<p>O m\u00e9todo de desgaseifica\u00e7\u00e3o rotativa de metais consegue atender melhor \u00e0s condi\u00e7\u00f5es din\u00e2micas de desgaseifica\u00e7\u00e3o do m\u00e9todo de flota\u00e7\u00e3o por bolhas. O g\u00e1s purificado \u00e9 introduzido pela abertura entre o eixo e a luva, sendo fragmentado ao passar pelas l\u00e2minas rotativas do bocal na parte inferior e ejetado em alta velocidade. Em seguida, o alum\u00ednio fundido, que flui acompanhando a rota\u00e7\u00e3o, sobe at\u00e9 o n\u00edvel do l\u00edquido.<\/p>\n<p>Nosso rotativo <a href=\"http:\/\/www.alalloycasting.com\/pt\/degassing-unit\/\">unidade de desgaseifica\u00e7\u00e3o<\/a> \u00c9 capaz de atender \u00e0 produ\u00e7\u00e3o de produtos de alum\u00ednio com elevados requisitos de desempenho t\u00e9cnico, sendo amplamente utilizada em fundi\u00e7\u00f5es de alum\u00ednio. Os principais componentes da unidade de desgaseifica\u00e7\u00e3o incluem um acionamento mec\u00e2nico, tampa da c\u00e2mara, rotor e aquecedor. A m\u00e1quina de desgaseifica\u00e7\u00e3o de alum\u00ednio fica entre o forno e a m\u00e1quina de fundi\u00e7\u00e3o, e sua principal fun\u00e7\u00e3o \u00e9 remover o hidrog\u00eanio e outros res\u00edduos. Caso contr\u00e1rio, esses gases afetar\u00e3o a qualidade e as propriedades mec\u00e2nicas do alum\u00ednio e de suas ligas.<\/p>","protected":false},"excerpt":{"rendered":"<p>Rotary metal degassing method is currently the most widely used method of degassing and purifying molten aluminum. AdTech online degassing unit adopts this degassing method&hellip;<\/p>","protected":false},"author":1,"featured_media":10105,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[],"class_list":["post-10104","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Rotary Metal Degassing for Purifying Molten Aluminum<\/title>\n<meta name=\"description\" content=\"Rotary metal degassing method is widely for purifying molten aluminum. AdTech online degassing unit adopts this degassing method.\" \/>\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\/rotary-metal-degassing\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Rotary Metal Degassing for Purifying Molten Aluminum\" \/>\n<meta property=\"og:description\" content=\"Rotary metal degassing method is widely for purifying molten aluminum. 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