Method of producing bearings
US5540883A · kind A · utility
27Cited by
13References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 31, 1994 |
| Grant date | Jul 30, 1996 |
| Priority date | — |
| Expiry date | May 31, 2014 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C2240/48
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method of producing bearing surfaces from powder metal blanks comprising: blending carbon and ferro alloys and lubricant with compressible elemental iron powder, pressing the blending mixture to form the powder metal blank, high temperature sintering the blank in a reducing atmosphere, compressing the powder metal blanks so as to produce a densified layer having a bearing surface, and then heat treating the densified layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.