Title:
焼結バルブシート
Document Type and Number:
Japanese Patent JP6386676
Kind Code:
B2
Abstract:
To provide a press-fitting, sintered valve seat having excellent valve coolability enabling use in high-efficiency engines, as well as excellent deformation resistance and wear resistance, first and second hard particles differing in hardness are dispersed in a total amount of 25-70% by mass in a network-shaped Cu matrix, the second hard particles having hardness of 300-650 HV0.1, lower than that of the first hard particles, and 0.08-2.2% by mass of P is contained in the sintered valve seat.
Inventors:
Hashimoto Kimiaki
Application Number:
JP2017543487A
Publication Date:
September 05, 2018
Filing Date:
September 28, 2016
Export Citation:
Assignee:
Riken Co., Ltd.
International Classes:
F01L3/02; B22F1/05; B22F1/105
Domestic Patent References:
| JP2007077438A | ||||
| JP5202451A | ||||
| JP2005248234A | ||||
| JP3060895A | ||||
| JP11021659A |
Attorney, Agent or Firm:
Takaishi Tachibana
Kenji Takaishi
Kenji Takaishi