| 发明名称 |
PISTON RING |
| 摘要 |
A piston ring is provided with a thermal spray coating that contains tungsten carbide and chrome carbide as a hard phase, and contains nickel as a metallic binder phase, and is characterized in that the thermal spray coating is formed by the spraying of a thermal spray powder that has been produced by means of a granulation sintering method, and that contains hard particles in which the mean particle diameter of the tungsten carbide has been adjusted by means of a BET method to fall within a range of not less than 0.15 μm and not more than 0.45 μm. |
| 申请公布号 |
US2014225330(A1) |
申请公布日期 |
2014.08.14 |
| 申请号 |
US201414258411 |
申请日期 |
2014.04.22 |
| 申请人 |
IHI Corporation ;DIESEL UNITED, LTD. |
发明人 |
SAITO Yoshiyuki;YAMADA Takeshi;UMEMOTO Yoshiyuki;KATO Nobuaki;MIZUNO Hiroaki |
| 分类号 |
F16J9/26 |
主分类号 |
F16J9/26 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A piston ring comprising:
a thermal spray coating that contains tungsten carbide and chrome carbide as a hard phase, and contains nickel as a metallic binder phase, wherein the thermal spray coating is formed by the spraying of a thermal spray powder that has been produced by means of a granulation sintering method, and that contains hard particles in which the mean particle diameter of the tungsten carbide has been adjusted by means of a BET method to fall within a range of not less than 0.15 μm and not more than 0.45 μm. |
| 地址 |
Tokyo JP |
