Welding auxiliary material
US5370942A · kind A · utility
0Cited by
12References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 8, 1992 |
| Grant date | Dec 6, 1994 |
| Priority date | — |
| Expiry date | Jan 8, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12174
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An improved welding auxiliary material for producing welded joints between refractory metal parts of high-wattage electric light sources is described. The characteristic feature of the invention is that the welding auxiliary material has a porous structure surface layer sintered from a refractory metal powder having a melting point of above 2000.degree. C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.