Mechanical part made of ceramics
US5181691A · kind A · utility
13Cited by
3References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 20, 1991 |
| Grant date | Jan 26, 1993 |
| Priority date | — |
| Expiry date | Jun 20, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31678
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A mechanical part has a contact surface for movement on a mating surface. The contact surface is first rough ground by using a grinding wheel of a grain size, for example, equal to or smaller than #200 and then barrel finished or buffed so as to have such a profile that is roughness spacing ranges from 5 to 100 .mu.m and more than half of its peaks are smoothly rounded.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.