{"id":8228,"date":"2021-03-31T03:27:37","date_gmt":"2021-03-31T03:27:37","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=8228"},"modified":"2021-03-31T03:27:37","modified_gmt":"2021-03-31T03:27:37","slug":"flux-for-aluminum-foundry","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/fr\/flux-for-aluminum-foundry\/","title":{"rendered":"Flux pour fonderie d'aluminium"},"content":{"rendered":"

Les sp\u00e9cifications de production du flux destin\u00e9 \u00e0 la fonderie d'aluminium r\u00e9pondent aux exigences g\u00e9n\u00e9rales strictes en mati\u00e8re de qualit\u00e9 des mati\u00e8res premi\u00e8res (puret\u00e9 commerciale, granulom\u00e9trie homog\u00e8ne, teneur en humidit\u00e9 inf\u00e9rieure \u00e0 1%) et sont appliqu\u00e9es tout au long du processus de fabrication. Le contr\u00f4le de ces variables garantit la r\u00e9gularit\u00e9 des produits et la constance de leurs performances.<\/p>\n

Tout au long de l'histoire de la plupart des fonderies d'aluminium, on a eu recours \u00e0 des fondants en poudre. Les fondants en poudre destin\u00e9s \u00e0 la fonderie d'aluminium sont commercialis\u00e9s depuis pr\u00e8s de 60 ans. En raison des pr\u00e9occupations li\u00e9es aux \u00e9missions dans l'environnement, les travaux de recherche et de d\u00e9veloppement portant sur de nouvelles formulations possibles et sur des variantes des m\u00e9langes traditionnels ont permis d'\u00e9valuer de mani\u00e8re plus approfondie l'utilisation du fluorure.<\/p>\n

Selon certaines sources, si le fluorure est retir\u00e9 de la formulation, cela donnerait lieu \u00e0 un flux inefficace et inutilisable. Par ailleurs, il semblerait que ce n\u2019est que lorsque la forme du flux passe de la poudre \u00e0 des particules que les \u00e9missions de flux contenant du fluor puissent \u00eatre r\u00e9duites d\u2019au moins moiti\u00e9. Il convient toutefois de pr\u00e9ciser avec prudence que les rejets de flux en poudre restent dans les limites environnementales autoris\u00e9es.<\/p>\n

\"Flux<\/p>\n

Les sels fluor\u00e9s sont soumis \u00e0 des r\u00e9glementations et contraintes environnementales plus strictes. Il est donc possible d'utiliser des flux sans fluor. Il est toutefois important de garder \u00e0 l'esprit que les flux sans fluor ne seront jamais aussi efficaces que ceux contenant du fluor. En revanche, les flux sans fluor constituent le meilleur choix pour \u00e9liminer la fum\u00e9e et les odeurs \u00e0 l'int\u00e9rieur de l'usine, et permettent de traiter des m\u00e9taux dans un four \u00e0 r\u00e9sistance sans endommager les composants \u00e9lectriques.<\/p>\n

Le flux granulaire<\/a> peut ou non pr\u00e9senter la m\u00eame composition que le flux en poudre. Toutefois, en raison de la morphologie diff\u00e9rente de ses grains cristallins, le flux granulaire pr\u00e9sente d\u2019autres avantages, tant sur le plan op\u00e9rationnel que sur celui du produit, par rapport au flux en poudre. Les flux granulaires sont moins polluants pour l\u2019atmosph\u00e8re ; les \u00e9missions sont r\u00e9duites d\u2019au moins 50%.<\/p>\n

Le fondant granulaire utilis\u00e9 dans la fonderie d'aluminium r\u00e9duit consid\u00e9rablement les odeurs et la fum\u00e9e, ce qui permet de travailler plus pr\u00e8s du four lors de l'op\u00e9ration d'\u00e9limination des scories. Ce fondant granulaire est relativement fin et ne produit pas de poussi\u00e8re, ce qui facilite son application et sa r\u00e9partition sur la surface de la masse fondue.<\/p>","protected":false},"excerpt":{"rendered":"

The production requirements of flux for aluminum foundry meet the strict general quality requirements of raw materials (commercial purity, uniform size, moisture content less than…<\/p>","protected":false},"author":1,"featured_media":8229,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[120],"tags":[],"class_list":["post-8228","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-fluxes"],"yoast_head":"\nFlux for Aluminum Foundry -sales@alalloycasting.com<\/title>\n<meta name=\"description\" content=\"The granular flux for aluminum foundry greatly reduces the odor and smoke, which is conducive to working in the slag removal operation.\" \/>\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\/flux-for-aluminum-foundry\/\" 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