Wear-resistant, nonabrading tic article and process for making
US3959557A · kind A · utility
52Cited by
9References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 4, 1974 |
| Grant date | May 25, 1976 |
| Priority date | — |
| Expiry date | Nov 4, 1994 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31678
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A wear-resistant, nonabrasive metal article, such as a thread guide, comprising a plain carbon steel substrate with a thin, dense, continuous coating of titanium nitride, having a thickness of about 1 to 5 microns, chemically vapor deposited at reduced pressure on said steel substrate, and preferably a thin, continuous, smooth, titanium carbide coating, having a thickness of about 5 to 25 microns, chemically vapor deposited at reduced pressure on said nitride coating, the carbide coating having HK.sub.50 hardness of 3600 to 3900 and a surface finish of 0.2 to 0.5 micron.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.