{"id":4693,"date":"2020-09-11T13:30:38","date_gmt":"2020-09-11T13:30:38","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=4693"},"modified":"2020-09-11T13:30:38","modified_gmt":"2020-09-11T13:30:38","slug":"aluminum-melt-treatment","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/fr\/aluminum-melt-treatment\/","title":{"rendered":"Traitement de l'aluminium fondu"},"content":{"rendered":"<p>La qualit\u00e9 de l'aluminium fondu d\u00e9termine dans une large mesure celle des produits finis. En particulier, l'aluminium liquide \u00e9lectrolytique pr\u00e9sente une teneur en hydrog\u00e8ne \u00e9lev\u00e9e, davantage d'inclusions et un nombre r\u00e9duit de germes cristallins actifs. Si le proc\u00e9d\u00e9 n'est pas correct, de nombreux probl\u00e8mes de qualit\u00e9 appara\u00eetront, tels qu'une porosit\u00e9 accrue, davantage d'inclusions de scories, une structure \u00e0 grains grossiers, etc. Il est donc essentiel d'am\u00e9liorer la qualit\u00e9 de l'aluminium fondu en recourant \u00e0 des technologies avanc\u00e9es de traitement de l'aluminium fondu.<\/p>\n<p>Le traitement de l'aluminium fondu comprend l'affinage du grain, le d\u00e9gazage et la filtration.<\/p>\n<p>Il existe deux m\u00e9thodes pour affiner le grain : l'une consiste \u00e0 ajouter un alliage-ma\u00eetre Al-Ti dans le four, et l'autre \u00e0 ajouter un fil Al-Ti-B \u00e0 l'ext\u00e9rieur du four. L'ajout d'alliage-ma\u00eetre Al-Ti dans le four n\u00e9cessite non seulement une grande quantit\u00e9 d'alliage-ma\u00eetre, mais l'effet d'affinage du grain diminue \u00e9galement \u00e0 mesure que le temps de s\u00e9jour de la masse fondue dans le four s'allonge, voire dispara\u00eet compl\u00e8tement.<\/p>\n<p>Un traitement en ligne hors du four permet non seulement de pallier les inconv\u00e9nients susmentionn\u00e9s, mais aussi de r\u00e9duire de plus de moiti\u00e9 la quantit\u00e9 d'alliage m\u00e8re, tout en garantissant une granulom\u00e9trie fine et homog\u00e8ne. <a href=\"http:\/\/www.alalloycasting.com\/fr\/aluminum-refining-degassing\/\">D\u00e9gazage en raffinerie<\/a> peut \u00eatre divis\u00e9 en traitement en four et traitement externe. La technologie de traitement en ligne hors four permet non seulement de r\u00e9duire ou d'\u00e9viter la pollution secondaire de la masse fondue, mais aussi d'am\u00e9liorer la qualit\u00e9 du produit et de r\u00e9duire l'intensit\u00e9 du travail des ouvriers.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-4695\" src=\"http:\/\/alalloycasting.com\/wp-content\/uploads\/2020\/09\/Aluminum-Melt-Treatment-1.jpg\" alt=\"Traitement de l&#039;aluminium fondu\" width=\"500\" height=\"400\" srcset=\"https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/09\/Aluminum-Melt-Treatment-1.jpg 500w, https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/09\/Aluminum-Melt-Treatment-1-300x240.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/p>\n<p>La filtration est le moyen le plus efficace et le plus fiable pour \u00e9liminer les inclusions non m\u00e9talliques pr\u00e9sentes dans la masse fondue d'alliage d'aluminium. Il existe notamment la filtration par tamis, <a href=\"http:\/\/www.alalloycasting.com\/fr\/foam-ceramic-filter\/\">filtre en c\u00e9ramique alv\u00e9ol\u00e9e<\/a> la filtration et la filtration par tubes c\u00e9ramiques microporeux. \u00c0 l'heure actuelle, la filtration par panneaux c\u00e9ramiques alv\u00e9ol\u00e9s est largement r\u00e9pandue.<\/p>\n<p>\u00c0 l'heure actuelle, la technologie de traitement de l'aluminium fondu est pass\u00e9e d'un simple d\u00e9gazage ou d'une simple filtration \u00e0 une technologie de traitement en continu combinant d\u00e9gazage et filtration. Au sein d'une m\u00eame unit\u00e9 de traitement, les fonctions de d\u00e9gazage et de filtration sont toutes deux disponibles, et ces deux op\u00e9rations sont effectu\u00e9es en continu et simultan\u00e9ment. Afin d'am\u00e9liorer la qualit\u00e9 des mat\u00e9riaux en aluminium, ceux destin\u00e9s \u00e0 un usage haut de gamme sont souvent trait\u00e9s \u00e0 la fois dans le four et hors du four.<\/p>","protected":false},"excerpt":{"rendered":"<p>The quality of aluminum melt determines the quality of final products to a great extent. In particular, there are hydrogen content, more inclusions, and less&hellip;<\/p>","protected":false},"author":1,"featured_media":4694,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[4684],"class_list":["post-4693","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-aluminum-melt-treatment"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Aluminum Melt Treatment Technology | Degassing Refining<\/title>\n<meta name=\"description\" content=\"Aluminum melt treatment includes grain refinement, degassing and filtration. 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