发明名称 |
Wear protection layer for piston rings |
摘要 |
The present invention relates to a wear-resistant layer, which is preferably used on piston rings for internal combustion engines. The wear-resistant layer comprises: 15-25% by weight iron (Fe), 10-25% by weight tungsten carbide (WC), 30-40% by weight chromium (Cr), 10-25% by weight nickel (Ni), 10-25% by weight molybdenum (Mo), 1-10% by weight carbon (C), 0.1-2% by weight silicon (Si), wherein Cr is present in elemental form and/or as a carbide in the form of Cr2C3. A method for applying the wear resistant layer and a piston ring having such a wear resistant layer are also disclosed. |
申请公布号 |
US9487855(B2) |
申请公布日期 |
2016.11.08 |
申请号 |
US201214127356 |
申请日期 |
2012.03.19 |
申请人 |
Federal-Mogul Bursheid GmbH |
发明人 |
Zinnabold Michael;Kennedy Marcus;Matz Marc-Manuel |
分类号 |
B22F5/02;C23C4/06;C23C30/00;F16J9/26;C22C30/00 |
主分类号 |
B22F5/02 |
代理机构 |
Dickinson Wright, PLLC |
代理人 |
Stearns Robert L;Dickinson Wright, PLLC |
主权项 |
1. A wear resistant coating for piston rings, comprising:
15-25% by weight iron (Fe), 10-25% by weight tungsten carbide (WC), 30-40% by weight chromium (Cr), 10-25% by weight nickel (Ni), 10-25% by weight molybdenum (Mo), 1-10% by weight carbon (C), 0.1-2% by weight silicon (Si), wherein Cr is present in elemental form and as Cr2C3, wherein the wear resistant coating contains a total proportion of 15 to 50% by wt. carbides, and the following carbide concentrations are contained: 10-25% by weight WC and 5-30% by weight Cr2C3. |
地址 |
Burscheid DE |