Welding wire
US4841119A · kind A · utility
2Cited by
1References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 24, 1987 |
| Grant date | Jun 20, 1989 |
| Priority date | — |
| Expiry date | Nov 24, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K35/0261
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The invention relates to a welding electrode with smooth surface for gas shielded arc welding, comprising a steel substrate provided with a thin, ferrous oxide containing covering layer. This covering layer has a thickness of less than 500 .ANG. and the structure of a ferric oxide gel comprising trivalent Fe-cations surrounded by oxygen containing anions, which anion-surrounded cations are amorphously bound in an aqueous gel-like network. A method is also described of producing this electrode and of using it in an arc-welding process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.