Patent · US Expired

Use of silver alloys as cadium-free brazing solder

US5352542A · kind A · utility

9Cited by

2References

7Claims

0Family size

Assignee

Degussa AG · DE

Inventors

Alexander Voelcker · Rodenbach, DE
Joerg Beuers · Gelnhausen, DE
Sigurd Joensson · Alzenau, DE
Dieter Kaufmann · Heidenheim, DE
Georg Ptaschek · Rosbach, DE
Wolfgang Kaster · Langenselbold, DE

Key dates

Filing date	Sep 1, 1993
Grant date	Oct 4, 1994
Priority date	—
Expiry date	Sep 1, 2013

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/12896
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

Cadmium-free brazing solders which also have working temperatures under 630.degree. C. containing 45 to 80 wt. % silver, 5 to 25 wt. % copper, 10 to 25 wt. % gallium, and 0.1 to 5 wt. % indium and/or tin.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.