{"id":10571,"date":"2021-10-13T06:41:09","date_gmt":"2021-10-13T06:41:09","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=10571"},"modified":"2021-10-13T06:41:09","modified_gmt":"2021-10-13T06:41:09","slug":"aluminium-power-flux","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/fr\/aluminium-power-flux\/","title":{"rendered":"Aluminium Power Flux"},"content":{"rendered":"<p>La plupart des sels de chlorure contenus dans le flux pour aluminium en poudre absorbent facilement l'humidit\u00e9 pr\u00e9sente dans l'atmosph\u00e8re, et certains de ces sels se pr\u00e9sentent souvent sous forme d'hydrates cristallins. Si cette partie de l'eau ne peut pas \u00eatre enti\u00e8rement \u00e9limin\u00e9e, elle p\u00e9n\u00e9trera dans le bain de fusion. L'alliage d'aluminium fond avec le flux, ce qui augmente la teneur en hydrog\u00e8ne de la masse fondue d'alliage d'aluminium. \u00c0 l'heure actuelle, la plupart des flux pour alliages d'aluminium sont fabriqu\u00e9s par simple m\u00e9lange m\u00e9canique de divers composants. Cette m\u00e9thode ne permet pas d'\u00e9liminer compl\u00e8tement l'humidit\u00e9 pr\u00e9sente dans le flux.<\/p>\n<p>La teneur en gaz et en m\u00e9taux alcalins des masses fondues d'alliages d'aluminium fait l'objet de contr\u00f4les stricts. Outre l'utilisation d'azote ou d'argon comme gaz d'affinage, il est souvent n\u00e9cessaire de recourir \u00e0 du chlore et \u00e0 de l'hexachloro\u00e9thane, substances plus r\u00e9actives, pour le traitement des masses fondues.<\/p>\n<p>Dans le cas des alliages d'aluminium, l'aluminium pr\u00e9sentant une forte activit\u00e9 chimique, des inclusions et des gaz se forment facilement au cours du processus de fusion. Une fois la masse fondue solidifi\u00e9e, ces inclusions et gaz se r\u00e9partissent \u00e0 l'int\u00e9rieur de l'alliage, ce qui nuit \u00e0 la qualit\u00e9 de celui-ci et n\u00e9cessite leur \u00e9limination. Les inclusions d'oxydation permettent d'am\u00e9liorer la qualit\u00e9 des pi\u00e8ces moul\u00e9es et d'\u00e9viter les d\u00e9fauts de coul\u00e9e.<\/p>\n<p>Le <a href=\"http:\/\/www.alalloycasting.com\/fr\/aluminum-refining-flux\/\">flux de raffinage de l'aluminium<\/a> Il sert \u00e0 \u00e9liminer les inclusions non m\u00e9talliques pr\u00e9sentes dans la masse d'aluminium en fusion, tout en formant une couche qui emp\u00eache efficacement cette derni\u00e8re et l'air d'absorber de l'hydrog\u00e8ne et de r\u00e9agir avec les oxydes.<\/p>\n<p><strong>Utilisation du flux \u00ab Aluminium Power \u00bb<\/strong><\/p>\n<p>Le flux de raffinage de l'aluminium peut \u00eatre ajout\u00e9 manuellement ou \u00e0 l'aide d'un \u00e9quipement d'injection. Lorsque l'on utilise un \u00e9quipement d'injection, il est \u00e9galement possible d'utiliser de l'azote ou de l'argon sous forme gazeuse ainsi que le flux pour \u00e9liminer les oxydes et l'hydrog\u00e8ne. La dur\u00e9e d'injection est de 15 \u00e0 20 minutes. Apr\u00e8s le raffinage, les impuret\u00e9s remontent \u00e0 la surface.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-10573\" src=\"http:\/\/alalloycasting.com\/wp-content\/uploads\/2021\/10\/Molten-Aluminum-Refining-Process.jpg\" alt=\"\" width=\"500\" height=\"400\" srcset=\"https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2021\/10\/Molten-Aluminum-Refining-Process.jpg 500w, https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2021\/10\/Molten-Aluminum-Refining-Process-300x240.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/p>\n<h2>Avantages du fondant utilis\u00e9 pour l'affinage de la poudre d'aluminium<\/h2>\n<ul>\n<li>Moins de consommation, protection de l'environnement, moins de fum\u00e9e huileuse.<\/li>\n<li>Faible temp\u00e9rature de fonctionnement, permet une r\u00e9action compl\u00e8te avec l'aluminium fondu.<\/li>\n<li>Son utilisation est simple : il peut \u00eatre ajout\u00e9 manuellement ou \u00e0 l'aide d'un \u00e9quipement d'injection.<\/li>\n<li>Excellente efficacit\u00e9 pour \u00e9liminer les inclusions d'oxyde et les scories dans la masse d'aluminium en fusion.<\/li>\n<li>Flux d'affinage, avec ou sans sodium, adapt\u00e9 aux alliages d'aluminium \u00e0 forte teneur en magn\u00e9sium, permettant d'\u00e9viter ou de r\u00e9duire l'apparition de taches blanches \u00e0 la surface de l'aluminium et des alliages d'aluminium, et d'am\u00e9liorer la qualit\u00e9 du produit.<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Most of the chloride salts contained in the aluminium power flux are easy to absorb moisture in the atmosphere, and some of the chloride salts&hellip;<\/p>","protected":false},"author":1,"featured_media":10572,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[],"class_list":["post-10571","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>Aluminium Power Flux for Foundry -sales@alalloycasting.com<\/title>\n<meta name=\"description\" content=\"Most of the chloride salts contained in the aluminium power flux are easy to absorb moisture in the atmosphere, and some of chloride salts...\" \/>\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\/aluminium-power-flux\/\" \/>\n<meta property=\"og:locale\" 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