{"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\/fr\/rotating-rotor-degassing\/","title":{"rendered":"D\u00e9gazage par rotor rotatif"},"content":{"rendered":"<p>Le d\u00e9gazage par rotor rotatif a pour but de fragmenter les grosses bulles de gaz inerte en bulles tr\u00e8s fines et de les r\u00e9partir uniform\u00e9ment dans le m\u00e9tal en fusion. En r\u00e9duisant le diam\u00e8tre des bulles, la surface expos\u00e9e du gaz purifi\u00e9 est consid\u00e9rablement agrandie, ce qui permet \u00e0 davantage de surfaces de bulles inertes d\u2019entrer en contact avec l\u2019hydrog\u00e8ne et les impuret\u00e9s pr\u00e9sents dans le m\u00e9tal en fusion, afin de faire remonter ces substances nocives \u00e0 la surface du liquide.<\/p>\n<p>Le principe fondamental du d\u00e9gazage par rotor rotatif r\u00e9side dans la capacit\u00e9 du rotor \u00e0 fragmenter les grosses bulles de gaz inerte en bulles tr\u00e8s fines et \u00e0 les disperser dans l'ensemble du m\u00e9tal en fusion. La r\u00e9duction du diam\u00e8tre des bulles augmente consid\u00e9rablement la surface expos\u00e9e du gaz purifi\u00e9, ce qui permet \u00e0 une plus grande surface de gaz inerte d'entrer en contact avec l'hydrog\u00e8ne et les impuret\u00e9s pr\u00e9sents dans le m\u00e9tal en fusion.<\/p>\n<p>Le r\u00e9gulateur de d\u00e9bit du gaz inerte permet d'ajuster le d\u00e9bit du gaz en fonction du volume de m\u00e9tal en fusion \u00e0 traiter, tandis que la vitesse de rotation de la tige et du rotor peut \u00eatre r\u00e9gl\u00e9e afin de g\u00e9n\u00e9rer des bulles de taille appropri\u00e9e pour faciliter la diffusion du gaz inerte.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-6878\" src=\"http:\/\/alalloycasting.com\/wp-content\/uploads\/2020\/12\/Rotating-Rotor-Degassing-1.jpg\" alt=\"D\u00e9gazage par rotor rotatif\" width=\"400\" height=\"266\" srcset=\"https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/12\/Rotating-Rotor-Degassing-1.jpg 400w, https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/12\/Rotating-Rotor-Degassing-1-300x200.jpg 300w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><\/p>\n<p>La conception standard de l'AdTech <a href=\"http:\/\/www.alalloycasting.com\/fr\/degassing-unit-for-sale\/\">unit\u00e9 de d\u00e9gazage<\/a> Le rotor est fabriqu\u00e9 en nitrure de silicium et sa dur\u00e9e de vie est sup\u00e9rieure \u00e0 2 ans (la dur\u00e9e de vie maximale pouvant atteindre 5 ans). Il pr\u00e9sente de grands avantages en termes de r\u00e9sistance \u00e0 la corrosion par l'aluminium, de r\u00e9sistance aux chocs thermiques, de r\u00e9sistance \u00e0 l'oxydation, de r\u00e9sistance \u00e0 l'abrasion, de r\u00e9sistance m\u00e9canique, etc. Il peut rester immerg\u00e9 pendant une longue p\u00e9riode sans subir d'abrasion. L'arbre mesure 60 mm et le diam\u00e8tre de la t\u00eate est de 200 mm. La r\u00e9sistance \u00e0 l'agitation de la masse fondue est r\u00e9duite au minimum. La conception \u00e0 grande vitesse (450-550 tr\/min) permet de briser les bulles au maximum et de les disperser dans tous les recoins de la cavit\u00e9 interne sur une tr\u00e8s grande surface. Les performances restent inchang\u00e9es et l\u2019effet de d\u00e9gazage est stable \u00e0 long terme. La stabilit\u00e9 de l\u2019efficacit\u00e9 de d\u00e9gazage est optimale, la dur\u00e9e de vie est maximale et les co\u00fbts de main-d\u2019\u0153uvre li\u00e9s au remplacement du rotor sont r\u00e9duits.<\/p>","protected":false},"excerpt":{"rendered":"<p>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&hellip;<\/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":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Rotating Rotor Degassing Molten Aluminum with Inert Gas<\/title>\n<meta name=\"description\" content=\"Rotating rotor 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