发明名称 |
Aluminium-piston containing 12-25% Silicon, the surface of which is oxidised by microarc-oxidation |
摘要 |
A piston (1) has a piston body (10) made of a material selected from any one of aluminum, an aluminum alloy, magnesium, and a magnesium alloy containing 12-25% silicon. An entire surface or a predetermined portion of the surface of the piston body (10) is covered with a plasma oxide film (17) by a microarc-oxidation process. |
申请公布号 |
EP1657326(A1) |
申请公布日期 |
2006.05.17 |
申请号 |
EP20050024929 |
申请日期 |
2005.11.15 |
申请人 |
AISIN SEIKI KABUSHIKI KAISHA |
发明人 |
HIRATSUKA, ICHIRO |
分类号 |
C25D1/00;C22C21/02;C25D11/04;F02F3/10;F16J1/02;F16J1/04 |
主分类号 |
C25D1/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|