Chromization of steels by gas process
US4357182A · kind A · utility
4Cited by
5References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 29, 1981 |
| Grant date | Nov 2, 1982 |
| Priority date | — |
| Expiry date | Apr 29, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23C12/00
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A process for the chromization by gas of steels containing more than 0.2% of carbon, consisting of three successive treatments, the chromization treatment proper employing a cement having a ferrochrome base containing between 1% and 3% of carbon, and preferably 2%. The process is particularly useful in the chromization of structural and tool steels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.