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US 12,497,997 B2Granted
Sliding member
AssigneeDaido Metal Company Ltd.
InventorsErina Yasuda, Yuma Haneda
Life of this patent
Estimating the term…
Abstract
A sliding member of the present invention includes a resin overlay layer containing an additive, in which the additive contains an oleophobic resin made of a fluorine resin and/or a silicon resin, and an appropriate amount of the oleophobic resin is uniformly dispersed on a sliding surface of the resin overlay layer. According to the sliding member, oil repellency can be imparted to the sliding surface of the resin overlay layer.
Claims5
A sliding member comprising a resin overlay layer containing an additive,
- wherein the additive contains an oleophobic resin made of a fluorine resin and/or a silicon resin, and
- the oleophobic resin is uniformly dispersed on a sliding surface of the resin overlay layer under the following conditions:
- U=s/(S*0.2)≤1 (1)
- where 6%≤S≤30%,
- s is a standard deviation of areas of Voronoi polygons on a portion of a surface of the overlay layer, wherein the Voronoi polygons are based on the centers of the exposed oleophobic resin, and
- S is an area ratio calculated as the portion of an area occupied by the resin to the total area of an area of the overlay layer where the oleophobic resin is exposed.
3 more elements
Dependencies are inferred from the claim text.