{"id":9342,"date":"2021-06-27T06:09:21","date_gmt":"2021-06-27T06:09:21","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=9342"},"modified":"2021-06-25T06:18:18","modified_gmt":"2021-06-25T06:18:18","slug":"degassing-agent","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/fr\/degassing-agent\/","title":{"rendered":"Agent de d\u00e9gazage pour alliages d'aluminium"},"content":{"rendered":"<p>L'agent de d\u00e9gazage sert principalement \u00e0 \u00e9liminer l'hydrog\u00e8ne et les \u00e9cumes pr\u00e9sents dans l'aluminium fondu, ainsi qu'\u00e0 purifier les alliages d'aluminium fondus \u00e0 haute temp\u00e9rature. Sa fonction principale consiste \u00e0 \u00e9liminer les inclusions internes et l'hydrog\u00e8ne des m\u00e9taux fondus \u00e0 haute temp\u00e9rature.<\/p>\n<p>De ce fait, la fusion de l'aluminium est simplifi\u00e9e. Certains composants du concentr\u00e9 d'aluminium se d\u00e9composent facilement \u00e0 haute temp\u00e9rature. Le gaz ainsi produit r\u00e9agit avec l'hydrog\u00e8ne et s'adsorbe fortement sur les scories, ce qui permet de s\u00e9parer rapidement ces derni\u00e8res de la masse fondue afin de les \u00e9liminer.<\/p>\n<p>L'agent de d\u00e9gazage peut \u00eatre utilis\u00e9 dans tous les types de bains d'alliages d'aluminium, ainsi que lors de la fusion, de l'affinage et de la scorification de l'aluminium pur. Lors de son utilisation, il suffit de saupoudrer l'agent d'affinage \u00e0 la surface ; celui-ci se dissout alors rapidement dans l'aluminium liquide, apr\u00e8s quoi il convient de bien m\u00e9langer le tout. Il est pr\u00e9f\u00e9rable d'injecter l'agent d'affinage \u00e0 l'aide d'un gaz inerte ; on peut par exemple choisir l'azote ou l'argon. Cela permet de clarifier l'aluminium liquide et d'obtenir un effet de d\u00e9cantation des scories. Une partie de l'agent d'affinage se d\u00e9compose facilement \u00e0 haute temp\u00e9rature, et le gaz ainsi g\u00e9n\u00e9r\u00e9 r\u00e9agit avec l'hydrog\u00e8ne pour absorber fortement les scories, ce qui permet de les s\u00e9parer rapidement de la masse fondue et de les \u00e9liminer.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-9344\" src=\"http:\/\/alalloycasting.com\/wp-content\/uploads\/2021\/06\/Degassing-Agent-1.jpg\" alt=\"\" width=\"500\" height=\"400\" srcset=\"https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2021\/06\/Degassing-Agent-1.jpg 500w, https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2021\/06\/Degassing-Agent-1-300x240.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/p>\n<p>L'agent de d\u00e9gazage \u00e0 base d'alliage d'aluminium pr\u00e9sente les avantages suivants : il ne d\u00e9gage pas de fum\u00e9e, est insipide, ne produit pas de poussi\u00e8re et est facile \u00e0 utiliser. Par exemple, le produit sp\u00e9cial <a href=\"http:\/\/www.alalloycasting.com\/fr\/adtech-fluxes\/\">produit nettoyant<\/a> Le processus de fusion est satisfaisant et les \u00e9quipements ne pr\u00e9sentent pas de traces de corrosion. L'agent de purification offre un bon effet de d\u00e9gazage. Les cendres d'aluminium sont s\u00e8ches, meules et l\u00e9g\u00e8res. Elles se s\u00e9parent bien du bain d'alliage d'aluminium et sont faciles \u00e0 \u00e9liminer.<\/p>\n<p>L'agent de raffinage est fondu avec un faible rapport de point eutectique, d\u00e9shydrat\u00e9 puis fondu \u00e0 haute temp\u00e9rature ; le sel inorganique \u00e0 haut point de fusion est ensuite trait\u00e9 pour produire un sel inorganique mixte \u00e0 bas point de fusion, qui est refroidi et broy\u00e9 en poudre. La m\u00e9thode de s\u00e9chage et de m\u00e9lange du flux purifi\u00e9 consiste \u00e0 s\u00e9cher et d\u00e9shydrater compl\u00e8tement le sel inorganique, puis \u00e0 l\u2019ajouter aux composants favorisant la d\u00e9shydrog\u00e9nation et le d\u00e9bourbage, selon la r\u00e9partition des points eutectiques du sel fondu. Cette m\u00e9thode est facile \u00e0 mettre en \u0153uvre, mais la qualit\u00e9 du flux raffin\u00e9 est m\u00e9diocre. Mati\u00e8res premi\u00e8res courantes telles que le chlorure de sodium, le carbonate de sodium, le chlorure de potassium, le chlorure de magn\u00e9sium, etc. Processus de fabrication du flux raffin\u00e9 (s\u00e9chage et m\u00e9lange) : s\u00e9chage \u2013 mati\u00e8res premi\u00e8res \u2013 m\u00e9lange \u2013 conditionnement \u2013 produit fini.<\/p>","protected":false},"excerpt":{"rendered":"<p>Degassing agent is mainly used to remove hydrogen and scum in molten aluminum, and purify high temperature aluminum alloy melt. Its basic function is to&hellip;<\/p>","protected":false},"author":1,"featured_media":9343,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[],"class_list":["post-9342","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>Degassing Agent used to remove hydrogen in molten aluminum<\/title>\n<meta name=\"description\" content=\"Degassing agent is mainly used to remove hydrogen and scum in molten aluminum, and purify high temperature aluminum alloy melt.\" \/>\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\/fr\/degassing-agent\/\" \/>\n<meta property=\"og:locale\" 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