Process for coating or hardfacing a part by means of a plasma transferred arc
US5624717A · kind A · utility
4Cited by
16References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 12, 1995 |
| Grant date | Apr 29, 1997 |
| Priority date | — |
| Expiry date | Jul 12, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K10/027
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The invention relates to a process for coating or hardfacing recharging a part by means of a plasma transferred arc. According to the process, on the part (1) to be coated or hardface is deposited at least one weld bead (7a, 7b, 7c) of said material solely by means of the plasma transferred arc (5), by moving the plasma relative to the part at a speed of 1.5 to 50 m/min and using a power of the plasma such that the surface of the part is melted over a thickness at the most equal to 0.5 mm and so that the enlargement of the grains in the melted area does not exceed 10%, without cooling the part during recharging.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.