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Title:
SINTERED VALVE SEAT AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2015/198932
Kind Code:
A1
Abstract:
The present invention addresses the objective of providing: a press-fit-type sintered valve seat for use in a high-efficiency engine, the valve seat having high valve cooling performance and high wear resistance; and a method for manufacturing said valve seat. Even when hard particles comprising a comparatively large quantity of a Co-based alloy are compounded, in order to form a networked Cu matrix, there are used a Cu powder having an average particle size of 45 µm or less and a purity of 99.5% or more and an Fe-P alloy powder, whereby a denser structure is achieved using liquid-phase sintering.

Inventors:
HASHIMOTO KIMIAKI (JP)
Application Number:
PCT/JP2015/067414
Publication Date:
December 30, 2015
Filing Date:
June 17, 2015
Export Citation:
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Assignee:
RIKEN KK (JP)
International Classes:
B22F5/10; B22F1/00; C22C1/04; C22C9/00; C22C9/06; C22C19/07; C22C29/00; C22C32/00; F01L3/02
Foreign References:
JPH03502216A1991-05-23
JP2007077438A2007-03-29
Other References:
See also references of EP 3162475A4
Attorney, Agent or Firm:
TAKAISHI Kitsuma (JP)
Kitsuma Takaishi (JP)
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