{"id":481,"date":"2020-04-03T10:08:44","date_gmt":"2020-04-03T10:08:44","guid":{"rendered":"http:\/\/alalloycasting.com\/?p=481"},"modified":"2020-08-26T08:05:29","modified_gmt":"2020-08-26T08:05:29","slug":"what-is-aluminum-alloy-exactly","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/fr\/what-is-aluminum-alloy-exactly\/","title":{"rendered":"Qu'est-ce qu'un alliage d'aluminium, exactement ?"},"content":{"rendered":"<p>Qu\u2019est-ce que l\u2019aluminium ? \u201c L\u2019aluminium pur est un m\u00e9tal blanc argent\u00e9 dot\u00e9 de nombreuses propri\u00e9t\u00e9s int\u00e9ressantes. Il est l\u00e9ger, non toxique (en tant que m\u00e9tal), non magn\u00e9tique et ne produit pas d\u2019\u00e9tincelles ; il pr\u00e9sente un certain attrait esth\u00e9tique et se pr\u00eate facilement au formage, \u00e0 l\u2019usinage et \u00e0 la fonderie. \u201d Bien qu\u2019il s\u2019agisse d\u2019un \u00e9l\u00e9ment abondant dans la cro\u00fbte terrestre, l\u2019aluminium ne se trouve pas \u00e0 l\u2019\u00e9tat libre dans la nature. Le proc\u00e9d\u00e9 Bayer est utilis\u00e9 pour raffiner l\u2019aluminium \u00e0 partir de la bauxite, un minerai d\u2019aluminium. Qu\u2019est-ce qu\u2019un alliage d\u2019aluminium exactement ? Un alliage d\u2019aluminium est obtenu en m\u00e9langeant divers \u00e9l\u00e9ments \u00e0 l\u2019aluminium pur afin d\u2019am\u00e9liorer ses performances et sa r\u00e9sistance. Le fer, le silicium, le cuivre, le magn\u00e9sium, le mangan\u00e8se et le zinc repr\u00e9sentent jusqu\u2019\u00e0 15 % du poids de l\u2019alliage. Les alliages se voient attribuer un num\u00e9ro \u00e0 quatre chiffres, dont le premier chiffre identifie une classe g\u00e9n\u00e9rale, ou s\u00e9rie, caract\u00e9ris\u00e9e par ses principaux \u00e9l\u00e9ments d\u2019alliage.<\/p>\n<h2>Qu'est-ce qu'un alliage d'aluminium, exactement ?<\/h2>\n<p>Les diff\u00e9rents types d'aluminium se distinguent par leur teneur en aluminium. Dans cette optique, il existe plusieurs cat\u00e9gories \u00e0 prendre en compte, chacune pr\u00e9sentant ses propres avantages et inconv\u00e9nients :<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-3172\" src=\"http:\/\/alalloycasting.com\/wp-content\/uploads\/2020\/04\/What-is-Aluminum-Alloy-Exactly.jpg\" alt=\"Qu&#039;est-ce qu&#039;un alliage d&#039;aluminium, exactement ?\" width=\"500\" height=\"400\" srcset=\"https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/04\/What-is-Aluminum-Alloy-Exactly.jpg 500w, https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2020\/04\/What-is-Aluminum-Alloy-Exactly-300x240.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/p>\n<p>La s\u00e9rie 1xxx contient de l'aluminium \u00e0 raison d'environ 99%. Cela en fait l'un des meilleurs alliages d'aluminium ; il offre en effet une excellente r\u00e9sistance \u00e0 la corrosion, sans oublier sa conductivit\u00e9 \u00e9lectrique et sa r\u00e9sistance exceptionnelle \u00e0 la corrosion. On le retrouve dans les r\u00e9seaux \u00e9lectriques et les lignes de transport d'\u00e9lectricit\u00e9 \u00e0 travers tous les \u00c9tats-Unis.<\/p>\n<p>La s\u00e9rie 2xxx est traitable thermiquement et le cuivre en est le principal \u00e9l\u00e9ment, outre l'aluminium. Il s'agit d'un alliage qui allie r\u00e9sistance m\u00e9canique et t\u00e9nacit\u00e9, mais qui ne pr\u00e9sente toutefois pas une tr\u00e8s bonne r\u00e9sistance \u00e0 la corrosion.<\/p>\n<p>La s\u00e9rie 6xxx est riche en magn\u00e9sium et en silicium. Elle est traitable thermiquement et polyvalente, sans compter qu'elle convient parfaitement \u00e0 de nombreuses applications structurelles et architecturales.<\/p>\n<p>La s\u00e9rie 7xxx est une gamme dont l'alliage principal est le zinc. Elle offre une grande r\u00e9sistance et permet d'obtenir d'excellents r\u00e9sultats dans le domaine des structures architecturales.<\/p>\n<p>La s\u00e9rie 3xxx contient principalement du mangan\u00e8se comme \u00e9l\u00e9ment d'alliage pr\u00e9dominant et est g\u00e9n\u00e9ralement utilis\u00e9e pour des applications polyvalentes.<\/p>\n<p>La s\u00e9rie 4xxx contient une grande quantit\u00e9 de silicium. Le silicium facilite la fabrication de fils de soudure et le brasage, sans compter que ses points de fusion sont plus bas.<\/p>\n<p>La s\u00e9rie 5xxxx est riche en magn\u00e9sium et r\u00e9sistante \u00e0 la corrosion. Ces alliages sont parfaits pour une utilisation en milieu sous-marin, mais ils sont surtout utilis\u00e9s dans l'\u00e9lectronique et l'architecture.<\/p>\n<p>L'Association de l'aluminium a mis en place un comit\u00e9 technique charg\u00e9 des normes de produits, qui r\u00e9glemente la cr\u00e9ation de nouveaux alliages. Ceux-ci doivent \u00eatre soumis \u00e0 des tests rigoureux avant d'\u00eatre utilis\u00e9s \u00e0 grande \u00e9chelle. Aujourd'hui, on recense plus de 530 compositions d'alliages diff\u00e9rentes en circulation, et leur nombre ne cesse d'augmenter ! AdTech propose plusieurs <a href=\"https:\/\/www.alalloycasting.com\/fr\/aluminum-alloy-additives\/\">additifs pour alliages d'aluminium<\/a> pour la coul\u00e9e d'alliages d'aluminium.<\/p>","protected":false},"excerpt":{"rendered":"<p>What is aluminum? \u201cPure aluminum is a silvery-white metal with many desirable characteristics. It is light, nontoxic (as the metal), nonmagnetic and nonsparking, somewhat decorative,&hellip;<\/p>","protected":false},"author":1,"featured_media":3172,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[145],"class_list":["post-481","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-what-is-aluminum-exactly"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>What is Aluminum Alloy Exactly | Types of Aluminum Alloy<\/title>\n<meta name=\"description\" content=\"What is aluminum alloy exactly? 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