Dynamic process for enhancing the wear resistance of ferrous articles
US7669358B1 · kind B1 · utility
1Cited by
15References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 19, 2007 |
| Grant date | Mar 2, 2010 |
| Priority date | — |
| Expiry date | Jul 31, 2028 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF42B5/24
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A dynamic process for increasing the wear life of ferrous articles subjected to a high-temperature environment created by combustion of a propellant or fuel comprises selecting the propellant or fuel so that its combustion products include relatively large amounts of nitrogen, which nitrogen forms a protective nitride layer on the surface of the ferrous article. Disclosed is a specific embodiment of the invention for prolonging the wear life of gun barrels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.