{"id":11207,"date":"2021-11-14T08:46:50","date_gmt":"2021-11-14T08:46:50","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=11207"},"modified":"2021-11-12T08:51:15","modified_gmt":"2021-11-12T08:51:15","slug":"refining-molten-aluminium","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/fr\/refining-molten-aluminium\/","title":{"rendered":"Affinage de l'aluminium fondu"},"content":{"rendered":"<p>Pour am\u00e9liorer la qualit\u00e9 de l'aluminium fondu et \u00e9liminer efficacement les inclusions telles que l'hydrog\u00e8ne et l'oxyde d'aluminium, le processus d'affinage est essentiel.<\/p>\n<p>En effet, ce mat\u00e9riau est non toxique, inodore, opaque, \u00e9tanche \u00e0 l'humidit\u00e9, r\u00e9sistant \u00e0 la corrosion, l\u00e9ger, dot\u00e9 de propri\u00e9t\u00e9s barri\u00e8res \u00e9lev\u00e9es, r\u00e9sistant aux UV, facile \u00e0 plier lors de la transformation en profondeur et de son utilisation, et pr\u00e9sente une excellente adh\u00e9rence et thermosoudabilit\u00e9, ainsi que de bonnes performances d'impression en surface. Elle est largement utilis\u00e9e dans les secteurs du tabac, des m\u00e9dicaments, de l\u2019alimentation, de l\u2019\u00e9lectronique, des produits chimiques de consommation courante et d\u2019autres industries. Lors de son utilisation, l\u2019\u00e9paisseur de la feuille d\u2019aluminium \u00ab double z\u00e9ro \u00bb atteint les grades \u00ab double z\u00e9ro cinq \u00bb et \u00ab double z\u00e9ro six \u00bb, voire plus fine encore. Par cons\u00e9quent, les propri\u00e9t\u00e9s m\u00e9caniques et le degr\u00e9 de microperforation de la feuille d\u2019aluminium \u00ab double z\u00e9ro \u00bb doivent r\u00e9pondre \u00e0 des exigences plus \u00e9lev\u00e9es. Cependant, au cours du processus de fusion de l\u2019aluminium en fusion, en raison de la pr\u00e9sence d\u2019inclusions telles que l\u2019hydrog\u00e8ne et l\u2019oxyde d\u2019aluminium, la feuille d\u2019aluminium \u00ab double z\u00e9ro \u00bb ne parvient souvent pas \u00e0 atteindre les performances requises, et g\u00e9n\u00e8re m\u00eame des d\u00e9chets, ce qui affecte gravement les b\u00e9n\u00e9fices \u00e9conomiques de l\u2019entreprise.<\/p>\n<p>Les m\u00e9thodes d'affinage de l'aluminium fondu peuvent \u00eatre class\u00e9es en deux cat\u00e9gories :<\/p>\n<p>L'un d'entre eux est le <a href=\"http:\/\/www.alalloycasting.com\/fr\/adsorption-purification-method\/\">m\u00e9thode d'adsorption<\/a>, principalement par le contact entre l'adsorbant et la masse fondue, de sorte que l'adsorbant et les impuret\u00e9s pr\u00e9sentes dans la masse fondue entrent en interaction physique, chimique ou m\u00e9canique, afin d'assurer l'\u00e9limination de l'hydrog\u00e8ne et des impuret\u00e9s.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-11109\" src=\"http:\/\/alalloycasting.com\/wp-content\/uploads\/2021\/11\/Purification-Flux-European-Aluminum.jpg\" alt=\"Flux de purification de l&#039;aluminium europ\u00e9en\" width=\"500\" height=\"400\" srcset=\"https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2021\/11\/Purification-Flux-European-Aluminum.jpg 500w, https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2021\/11\/Purification-Flux-European-Aluminum-300x240.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/p>\n<p>La deuxi\u00e8me m\u00e9thode est celle dite \u00ab sans adsorption \u00bb, qui modifie l'\u00e9tat d'\u00e9quilibre du syst\u00e8me m\u00e9tal-gaz-inclusions par le biais d'effets physiques tels que le vide, les ultrasons et la diff\u00e9rence de densit\u00e9, afin de s\u00e9parer le gaz et les impuret\u00e9s pr\u00e9sents dans l'aluminium fondu. Bien que la m\u00e9thode de traitement sous vide pr\u00e9sente des avantages, l'\u00e9quipement n\u00e9cessaire est on\u00e9reux et co\u00fbteux, ce qui explique qu'elle ne soit pas encore largement r\u00e9pandue.<\/p>\n<p>Dans le processus de production r\u00e9el, la m\u00e9thode sans adsorption est rarement utilis\u00e9e et reste principalement cantonn\u00e9e \u00e0 la recherche th\u00e9orique en laboratoire. Ces derni\u00e8res ann\u00e9es, le traitement par ultrasons et la technologie de purification \u00e9lectromagn\u00e9tique sont devenus des axes de recherche majeurs dans le domaine de la purification des m\u00e9taux en fusion. Dans le processus de fusion, la m\u00e9thode d'adsorption est la plus r\u00e9pandue. Elle se divise en deux cat\u00e9gories : la m\u00e9thode de filtration CFF et la m\u00e9thode de flottation. La m\u00e9thode de flottation \u00e9tant relativement simple \u00e0 mettre en \u0153uvre et ne g\u00e9n\u00e9rant pas de risques secondaires, elle constitue la technologie d'affinage la plus largement utilis\u00e9e.<\/p>","protected":false},"excerpt":{"rendered":"<p>How to improve the quality of the molten aluminium and effectively remove the inclusions such as hydrogen and aluminum oxide, the key is the refining&hellip;<\/p>","protected":false},"author":1,"featured_media":11209,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[],"class_list":["post-11207","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>Refining Molten Aluminium, Adsorption Method and Floatation Method<\/title>\n<meta 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