发明名称 |
ALUMINUM ALLOY HAVING EXCELLENT ANODIC OXIDATION TREATABILITY, AND ANODIC-OXIDATION-TREATED ALUMINUM ALLOY MEMBER |
摘要 |
An aluminum alloy comprising more than 3.5% and up to 6.0% of Mg, 0.02 to 1.0% inclusive of Cu, 0.02 to 0.1% inclusive of Cr, and a remainder made up by Al and unavoidable impurities, wherein the contents of Si and Fe in the unavoidable impurities are limited to 0.05% or less and 0.05% or less, respectively, and wherein the number of intermetallic compound particles contained in the aluminum alloy and having a maximum length of 4 µm or more is 50 particles or less per 1 mm 2 of an arbitrary cross-sectional area of the aluminum alloy. An aluminum alloy is provided, which has excellent anodic-oxidation-treatability and can be used for providing an anodic-oxidation-treated aluminum alloy member having high withstand voltage properties and such excellent heat resistance that the occurrence of cracking under high temperatures conditions can be prevented. |
申请公布号 |
EP2878691(A1) |
申请公布日期 |
2015.06.03 |
申请号 |
EP20130823540 |
申请日期 |
2013.07.10 |
申请人 |
KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.) |
发明人 |
TAKADA, SATORU;KOBAYASHI, KAZUNORI;TANAKA, TOSHIYUKI;INOUE, KENICHI |
分类号 |
C22C21/06;C25D11/04;C25D11/06 |
主分类号 |
C22C21/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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