Title:
SLIDING MEMBER
Document Type and Number:
WIPO Patent Application WO/2023/053379
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a sliding member that is covered by a DLC coating, is less likely to have micro-fractures on the sliding surface that have been caused by the progression of cracks, and is able to suppress increases in abrasive wear. This problem is solved by means of a sliding member having a DLC coating on the outer peripheral surface thereof. In the DLC coating, an S-band derived from an sp3 bond is measured in addition to a G-band derived from a graphite structure and a D-band derived from defects in the graphite structure, and these bands satisfy a specific relationship.
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Inventors:
SATO TOMOYUKI (JP)
KITAZUME YUTAKA (JP)
NANGO TETSUYA (JP)
KITAZUME YUTAKA (JP)
NANGO TETSUYA (JP)
Application Number:
PCT/JP2021/036226
Publication Date:
April 06, 2023
Filing Date:
September 30, 2021
Export Citation:
Assignee:
TPR CO LTD (JP)
International Classes:
F02F5/00; C01B32/25; F16J9/26; G01N21/65
Domestic Patent References:
| WO2021124788A1 | 2021-06-24 | |||
| WO2015121944A1 | 2015-08-20 | |||
| WO2016021671A1 | 2016-02-11 |
Foreign References:
| JP2020200803A | 2020-12-17 | |||
| JP2009241252A | 2009-10-22 | |||
| JP2008297171A | 2008-12-11 | |||
| JP2002544380A | 2002-12-24 | |||
| US20150018254A1 | 2015-01-15 | |||
| JP5713362B2 | 2015-05-07 | |||
| JP6586578B2 | 2019-10-09 |
Other References:
See also references of EP 4202199A4
Attorney, Agent or Firm:
IP FIRM SHUWA (JP)
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