Process for coating or welding easily oxidized materials and plasma torch for carrying out this process
US6133542A · kind A · utility
41Cited by
3References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 20, 1999 |
| Grant date | Oct 17, 2000 |
| Priority date | — |
| Expiry date | Sep 20, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05H1/3478
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for coating or welding easily oxidized materials is carried out by applying weld metal powder by a plasma powder welding process with an alternating current or with a direct current and a superimposed alternating current as welding current to generate a plasma arc for the powder welding process. For this purpose, one base of the plasma arc is produced in a spherical recess (34) of an electrode (32).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.