Sliding part and method of manufacturing the same
US9017599B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 1, 2012 |
| Grant date | Apr 28, 2015 |
| Priority date | — |
| Expiry date | Apr 18, 2033 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C2220/20
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
There is provided a sliding part in which a surface coverage ratio of copper in the sliding part increases. A bearing which is the sliding part is formed by filling the raw powder into the filling portion of the forming mold, compacting the raw powder to form a powder compact, which is sintered. A copper-based raw powder is composed of a copper-based flat raw powder whose diameter is smaller than that of an iron-based raw powder and an aspect ratio larger than that of the iron-based raw powder, and a copper-based small-sized raw powder whose diameter is smaller than that of the copper-based flat raw powder. The copper is allowed to segregate at the surface of the sliding part. The surface of the bearing is covered with the copper-based small-sized raw powder and the copper-based flat raw powder, thereby the surface coverage ratio of copper can be increased.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.