Title:
摺動部材
Document Type and Number:
Japanese Patent JP7227099
Kind Code:
B2
Abstract:
A sliding member (1) includes a back-metal layer (2) and a sliding layer (3) including a copper alloy (4) including 0.5 to 12 mass% of Sn and the balance of Cu and inevitable impurities. A cross-sectional structure of the sliding layer includes first copper alloy grains (41) in contact with a bonding surface (21) and second copper alloy grains (42) not in contact with the bonding surface (21). The first and second grains have an average grain size D1 and D2 respectively. D1 is 30 to 80 µm; and D1/D2 = 0.1 to 0.3. In the cross-sectional structure, the second grains includes third grains (43) that includes internal grains (44) therein that are not in contact with a grain boundary of the third grains. A total area S I of the third grains and a total area of the second copper alloy grains S2 satisfy: S0/S2 = 0.25 to 0.80.
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Inventors:
Masahiro Nakai
Application Number:
JP2019134393A
Publication Date:
February 21, 2023
Filing Date:
July 22, 2019
Export Citation:
Assignee:
Daido Metal Co., Ltd.
International Classes:
F16C33/12; B22D13/02; B22D19/16; C22C9/00; C22C38/00; C22C38/04
Domestic Patent References:
| JP2018145505A | ||||
| JP2006266445A | ||||
| JP2016109235A | ||||
| JP2012522134A |
Attorney, Agent or Firm:
Patent Attorney Corporation Asamura Patent Office
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