Title:
THERMAL SPRAY COATING FILM, SLIDING MEMBER AND PISTON RING
Document Type and Number:
WIPO Patent Application WO/2023/113035
Kind Code:
A1
Abstract:
[Problem] The present invention addresses the problem of providing: a thermal spray coating film which exhibits excellent wear resistance, scuff resistance and initial conformability, while having low counterpart attacking properties; and a sliding member and a piston ring, each of which is provided with this thermal spray coating film. [Solution] The problem is solved by a thermal spray coating film which is formed at least on a sliding surface of a base material 2 by thermally spraying a thermal spray starting material powder, and which is configured so as to comprise Mo, NiCr and SiC. By a method for forming a thermal spray coating film 3 according to the present invention, a thermal spray coating film 3 is formed at least on a sliding surface of a base material 2 by thermally spraying a thermal spray starting material powder; the thermal spray coating film 3 comprises Mo, NiCr and SiC; and the thermal spray starting material powder is composed of an SiC powder that constitutes the SiC and one or both of an Mo powder that constitutes the Mo and an NiCr powder that constitutes the NiCr.
Inventors:
YAMAGUCHI MASATO (JP)
ITO MITSUO (JP)
TANNO MITSUNARI (JP)
AIZAWA TAKESHI (JP)
ITO MITSUO (JP)
TANNO MITSUNARI (JP)
AIZAWA TAKESHI (JP)
Application Number:
PCT/JP2022/046542
Publication Date:
June 22, 2023
Filing Date:
December 16, 2022
Export Citation:
Assignee:
NIPPON PISTON RING CO LTD (JP)
International Classes:
C23C4/06; F16J9/26
Foreign References:
| JP2004510050A | 2004-04-02 | |||
| JP2015518085A | 2015-06-25 | |||
| US20150284833A1 | 2015-10-08 |
Attorney, Agent or Firm:
YOSHIMURA Shunichi (JP)
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