{"id":12357,"date":"2022-01-22T07:24:33","date_gmt":"2022-01-22T07:24:33","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=12357"},"modified":"2022-02-28T08:02:24","modified_gmt":"2022-02-28T08:02:24","slug":"flux-for-melting-aluminium","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/fr\/flux-for-melting-aluminium\/","title":{"rendered":"Flux pour la fusion de l'aluminium"},"content":{"rendered":"

Le flux pour la fusion de l'aluminium est une substance solide (g\u00e9n\u00e9ralement un m\u00e9lange de sels de chlorure et de fluorure) utilis\u00e9e dans les fonderies d'aluminium pour r\u00e9duire l'oxydation de la masse fondue, minimiser la p\u00e9n\u00e9tration de l'hydrog\u00e8ne atmosph\u00e9rique, et d'absorber les inclusions non m\u00e9talliques en suspension dans la masse fondue, de pr\u00e9server les parois du four et de la poche de coul\u00e9e de l'accumulation d'oxydes, de r\u00e9duire la teneur en aluminium entra\u00een\u00e9 dans les scories d'aluminium, d'\u00e9liminer l'hydrog\u00e8ne dissous dans la masse fondue, d'affiner les grains d'aluminium pendant la solidification, de modifier les inclusions de silicium dans les alliages contenant du silicium et d'oxyder l'exc\u00e8s de magn\u00e9sium.<\/p>\n

Dans le processus de fusion de l'aluminium et des alliages d'aluminium, les inclusions d'hydrog\u00e8ne et d'oxyde constituent les principales substances qui polluent la masse d'aluminium en fusion. L'aluminium forme facilement de l'Al\u2082O\u2083 ou de l'alumine secondaire (Al\u2082O et Al\u2081\u2080) au contact de l'oxyg\u00e8ne, et absorbe \u00e9galement facilement le gaz (H), qui repr\u00e9sente 70 \u00e0 90% du gaz total pr\u00e9sent dans le bain d'aluminium fondu.<\/p>\n

Les principaux d\u00e9fauts des alliages d'aluminium moul\u00e9s sont dus \u00e0 la pr\u00e9sence de particules solides telles que des pores et des inclusions de scories. Par cons\u00e9quent, pour obtenir une masse fondue de haute qualit\u00e9, il est non seulement n\u00e9cessaire de choisir un proc\u00e9d\u00e9 de fusion adapt\u00e9 et raisonnable, mais les \u00e9tapes d'affinage et de purification de la masse fondue rev\u00eatent \u00e9galement une grande importance.<\/p>\n

\"Flux<\/p>\n

Flux granulaire<\/a> Il s'agit d'un nouvel additif efficace et respectueux de l'environnement. Il est utilis\u00e9 dans le processus de raffinage secondaire de la fusion et du moulage des alliages d'aluminium. Sa teneur en hydrog\u00e8ne permet de r\u00e9duire les pertes d'aluminium.<\/p>\n

\u00c0 la diff\u00e9rence des m\u00e9thodes traditionnelles flux en poudre<\/a>, le flux granulaire \u00e0 base d'alliage d'aluminium pr\u00e9sente des avantages techniques et des b\u00e9n\u00e9fices \u00e9conomiques \u00e9vidents. Par ailleurs, lors de la r\u00e9action avec l'aluminium en fusion, les gaz d\u00e9gag\u00e9s par le flux granulaire sont non toxiques et g\u00e9n\u00e8rent peu d'\u00e9missions, ce qui am\u00e9liore consid\u00e9rablement les conditions de travail.<\/p>\n

Compte tenu des avantages susmentionn\u00e9s, les flux granulaires \u00e0 base d'alliage d'aluminium suscitent un int\u00e9r\u00eat croissant dans le secteur et tendent \u00e0 remplacer progressivement les flux traditionnels sous forme de poudre.<\/p>\n

AdTech : approche granulaire flux pour la fusion de l'aluminium<\/a> Il existe en deux sp\u00e9cifications : PM02 et PM06. Il se pr\u00e9sente sous forme de granul\u00e9s blancs (l\u00e9g\u00e8rement gris\u00e2tres). Il b\u00e9n\u00e9ficie d'une technologie exclusive permettant d'am\u00e9liorer efficacement le d\u00e9gazage ainsi que l'\u00e9limination des scories et des m\u00e9taux alcalins du m\u00e9tal en fusion.<\/p>","protected":false},"excerpt":{"rendered":"

Flux for Melting Aluminium is a solid substance (usually a mixture of chloride and fluoride salts) used in aluminum foundries to reduce melt oxidation, minimize…<\/p>","protected":false},"author":1,"featured_media":12358,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[120],"tags":[13181,13180],"class_list":["post-12357","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-fluxes","tag-aluminum-alloy-granular-fluxes","tag-flux-for-melting-aluminium"],"yoast_head":"\nFlux for Melting Aluminium, Aluminum Alloy Granular Fluxes<\/title>\n<meta name=\"description\" content=\"Flux for Melting Aluminium is a solid substance (mixture of chloride and fluoride salts) used in aluminum foundries to reduce oxidation.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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