| 发明名称 |
SINTERED IRON-BASED ALLOY VALVE SEAT |
| 摘要 |
To provide an iron-based sintered alloy valve seat having excellent wear resistance and machinability, which can be used for high-power diesel engines, an intermetallic compound having Vickers hardness Hv of 800-1200 is used, and C and P in the composition of the iron-based sintered valve seat are by mass 1.2-1.6% and 0.80-1.35%, respectively. |
| 申请公布号 |
US2015152753(A1) |
申请公布日期 |
2015.06.04 |
| 申请号 |
US201314412910 |
申请日期 |
2013.07.03 |
| 申请人 |
KABUSHIKI KAISHA RIKEN |
发明人 |
Hashimoto Kimiaki;Henmi Hiroji |
| 分类号 |
F01L3/02;C22C33/02;C22C38/22;C22C38/02;C22C38/36;C22C38/24 |
主分类号 |
F01L3/02 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. An iron-based sintered valve seat comprising 5-14% by volume of hard intermetallic compound particles having an average particle size of 5-200 tm and Vickers hardness Hv of 800-1200 dispersed in a matrix having a composition comprising C, Si, Cr, Mo V and P, the balance being Fe and inevitable impurities; C and P being by mass 1.2-1.6% and 0.80-1.35%, respectively, based on said iron-based sintered valve seat. |
| 地址 |
Tokyo JP |
