{"id":10649,"date":"2021-10-18T02:40:20","date_gmt":"2021-10-18T02:40:20","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=10649"},"modified":"2021-10-18T02:40:20","modified_gmt":"2021-10-18T02:40:20","slug":"aluminum-liquid-refining-agent","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/fr\/aluminum-liquid-refining-agent\/","title":{"rendered":"Agent de raffinage de l'aluminium liquide"},"content":{"rendered":"

Lors du choix de la composition de l'agent d'affinage de l'aluminium liquide, outre les propri\u00e9t\u00e9s physiques de l'agent d'affinage (telles que le point de fusion, la viscosit\u00e9, la tension superficielle, la densit\u00e9, la volatilit\u00e9, etc.), il convient \u00e9galement de prendre en compte les caract\u00e9ristiques de l'interaction chimique entre l'agent d'affinage, le m\u00e9tal et le milieu gazeux, afin qu\u2019il pr\u00e9sente une forte capacit\u00e9 \u00e0 absorber et \u00e0 dissoudre les inclusions, un point de fusion bas et de bonnes performances de s\u00e9paration entre les scories et l\u2019aluminium, et qu\u2019il permette \u00e0 certains composants de l\u2019agent d\u2019affinage de modifier les propri\u00e9t\u00e9s du gaz de four lorsqu\u2019ils sont chauff\u00e9s et fondus, formant ainsi une atmosph\u00e8re r\u00e9ductrice afin de r\u00e9duire l\u2019oxydation de l\u2019aluminium.<\/p>\n

Fonction de l'agent de raffinage de l'aluminium liquide<\/h2>\n

(1) Favorise l'\u00e9limination du film d'oxyde \u00e0 l'interface entre l'aluminium fondu et l'agent d'affinage, ainsi que l'\u00e9limination des inclusions et des gaz.
\n(2) Il r\u00e9agit facilement avec l'aluminium fondu, ce qui favorise la destruction du film d'oxyde, et l'hydrog\u00e8ne peut s'\u00e9chapper de la surface de l'aluminium fondu.
\n(3) Il a pour fonction de dissoudre et d'adsorber les inclusions, ce qui facilite leur \u00e9limination ainsi que celle des gaz.<\/p>\n

\"Aluminium<\/p>\n

Lorsque le flux de raffinage<\/a> s'il joue principalement un r\u00f4le protecteur, il convient de choisir un sel de chlorure inerte vis-\u00e0-vis de l'aluminium fondu. Lorsque l'objectif principal est le d\u00e9gazage et la purification, il convient de choisir un flux d'affinage qui r\u00e9agit efficacement avec l'aluminium fondu pour g\u00e9n\u00e9rer des substances gazeuses. Lorsqu\u2019il est principalement utilis\u00e9 pour \u00e9liminer les inclusions, il convient de prendre pleinement en compte la capacit\u00e9 d\u2019\u00e9vacuation des scories de l\u2019agent d\u2019affinage.<\/p>\n

Les sels de chlorure couramment utilis\u00e9s dans la production comprennent le chlorure de zinc, le chlorure de mangan\u00e8se, le chlorure de potassium, le chlorure de sodium, l'hexachloro\u00e9thane, le t\u00e9trachlorure de carbone, etc., qui peuvent \u00eatre utilis\u00e9s seuls ou en combinaison. Si l'agent d'affinage doit non seulement purifier, mais aussi modifier ou affiner les grains cristallins, un agent d'affinage composite, compos\u00e9 d'agents de modification et d'agents d'affinage, peut \u00eatre utilis\u00e9 pour assurer un traitement complet de l'aluminium fondu.<\/p>","protected":false},"excerpt":{"rendered":"

When selecting the composition of the aluminum liquid refining agent, in addition to the physical properties of the refining agent (such as melting point, viscosity,…<\/p>","protected":false},"author":1,"featured_media":10651,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[],"class_list":["post-10649","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"\nAluminum Liquid Refining Agent -sales@alalloycasting.com<\/title>\n<meta name=\"description\" content=\"When selecting the composition of the aluminum liquid refining agent, in addition to the physical properties of the refining agent...\" \/>\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\/aluminum-liquid-refining-agent\/\" \/>\n<meta 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