| 发明名称 | Aluminum alloy member, aluminum alloy piston for internal combustion engine and manufacturing method thereof | ||
| 摘要 | A piston for an internal combustion engine includes a piston body made of an aluminum alloy material containing silicon and having a piston ring groove formed therein and an anodic oxide film formed on the piston ring groove, wherein a metal containing nickel and zinc is deposited around silicon particles in the anodic oxide film. | ||
| 申请公布号 | US9010297(B2) | 申请公布日期 | 2015.04.21 |
| 申请号 | US201314021407 | 申请日期 | 2013.09.09 |
| 申请人 | Hitachi Automotive Systems, Ltd. | 发明人 | Sato Takanori;Sasaki Masato;Takahashi Norikazu |
| 分类号 | C25D11/04;C25D3/02;C25D5/44;C25D11/00;C25D11/20;F02F3/00;C25D3/56 | 主分类号 | C25D11/04 |
| 代理机构 | Foley & Lardner LLP | 代理人 | Foley & Lardner LLP |
| 主权项 | 1. A piston for an internal combustion engine, comprising: a piston body made of an aluminum alloy material containing silicon and having a piston ring groove formed therein; and an anodic oxide film formed on the piston ring groove, wherein a metal containing nickel and zinc is deposited around silicon particles in the anodic oxide film. | ||
| 地址 | Hitachinaka-shi JP | ||