Brazing fillers for sealing vacuum-tight vessels, vacuum-tight vessels and method for manufacturing vacuum-tight vessels
US5916520A · kind A · utility
4Cited by
3References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 11, 1997 |
| Grant date | Jun 29, 1999 |
| Priority date | — |
| Expiry date | Mar 11, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C5/06
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The brazing filler of the present invention is excellent in wetting properties towards the open end of a ceramic cylinder and a metal sealing cap can be sealed well on the open end. The present brazing filler comprises Ag, Cu and active metal, in which the Cu-active metal compound is contained in an amount of not more than 40% by volume.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.