{"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\/fr\/rotary-metal-degassing\/","title":{"rendered":"D\u00e9gazage rotatif des m\u00e9taux"},"content":{"rendered":"<p>Le d\u00e9gazage rotatif des m\u00e9taux est actuellement la m\u00e9thode la plus r\u00e9pandue pour le d\u00e9gazage et la purification de l'aluminium fondu. L'unit\u00e9 de d\u00e9gazage en ligne d'AdTech utilise cette m\u00e9thode pour purifier l'aluminium fondu.<\/p>\n<p>Le principe du proc\u00e9d\u00e9 de d\u00e9gazage rotatif des m\u00e9taux consiste \u00e0 faire passer un gaz inerte ou un gaz actif insoluble dans l'aluminium fondu au sein de ce dernier, ou \u00e0 ajouter un sel de chlore (chlorure) afin qu'il r\u00e9agisse avec l'aluminium fondu pour g\u00e9n\u00e9rer un gaz, ce qui produit un grand nombre de bulles qui s'\u00e9chappent de l'aluminium fondu. Comme la pression partielle d\u2019hydrog\u00e8ne dans la bulle est \u00e9gale \u00e0 PH = 0, l\u2019hydrog\u00e8ne dissous dans l\u2019aluminium fondu continuera \u00e0 p\u00e9n\u00e9trer dans la bulle. Ce processus se poursuit jusqu\u2019\u00e0 ce que la pression partielle d\u2019hydrog\u00e8ne dans la bulle augmente pour atteindre la concentration d\u2019hydrog\u00e8ne dans l\u2019aluminium fondu (H) = K. La relation PH n\u2019est \u00e9quilibr\u00e9e que lorsque cet \u00e9quilibre est atteint. Une fois que les bulles remontent \u00e0 la surface, l\u2019hydrog\u00e8ne qu\u2019elles contiennent s\u2019\u00e9chappe dans l\u2019atmosph\u00e8re. Par cons\u00e9quent, la formation continue de bulles permet d\u2019\u00e9liminer en continu l\u2019hydrog\u00e8ne dissous dans l\u2019aluminium fondu.<\/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=\"Proc\u00e9d\u00e9 de purification des gaz\" 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>Les atomes d'hydrog\u00e8ne dissous dans l'aluminium liquide migrent vers la surface de la bulle purifi\u00e9e, o\u00f9 ils sont adsorb\u00e9s pour former des hydrures et p\u00e9n\u00e8trent dans la bulle d'hydrog\u00e8ne. Enfin, l\u2019aluminium fondu s\u2019\u00e9chappe \u00e0 mesure que les bulles remontent \u00e0 la surface, ce qui ach\u00e8ve le d\u00e9gazage et la purification de l\u2019aluminium fondu. Il s\u2019agit d\u2019un processus dans lequel l\u2019hydrog\u00e8ne se diffuse en phase liquide et est adsorb\u00e9 par les bulles.<\/p>\n<p>Le proc\u00e9d\u00e9 de d\u00e9gazage rotatif des m\u00e9taux permet de mieux r\u00e9pondre aux conditions dynamiques de d\u00e9gazage requises par la m\u00e9thode de flottation \u00e0 bulles. Le gaz purifi\u00e9 est introduit par l'interstice entre l'arbre et le manchon ; il est fragment\u00e9 lorsqu'il traverse les aubes rotatives situ\u00e9es dans la partie inf\u00e9rieure, puis \u00e9ject\u00e9 \u00e0 grande vitesse. L'aluminium fondu, entra\u00een\u00e9 par la rotation, remonte alors jusqu'au niveau du liquide.<\/p>\n<p>Notre machine rotative <a href=\"http:\/\/www.alalloycasting.com\/fr\/degassing-unit\/\">unit\u00e9 de d\u00e9gazage<\/a> Elle permet de r\u00e9pondre aux exigences de production de produits en aluminium pr\u00e9sentant des performances techniques \u00e9lev\u00e9es et est largement utilis\u00e9e dans les fonderies d'aluminium. Les principaux composants de l'unit\u00e9 de d\u00e9gazage comprennent un entra\u00eenement m\u00e9canique, un couvercle de cuve, un rotor et un dispositif de chauffage. La machine de d\u00e9gazage de l'aluminium est install\u00e9e entre le four et la machine de coul\u00e9e ; sa fonction principale est d'\u00e9liminer l'hydrog\u00e8ne et d'autres r\u00e9sidus. Sans cela, ces gaz affecteraient la qualit\u00e9 et les propri\u00e9t\u00e9s m\u00e9caniques de l'aluminium et de ses alliages.<\/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. 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