Patent · US Expired

Use of a cadmium-free silver alloy as brazing solder (III)

US5341981A · kind A · utility

3Cited by

1References

12Claims

0Family size

Assignee

Degussa AG · DE

Inventors

Wolfgang Weise · Frankfurt, DE
Alexander Voelcker · Rodenbach, DE
Dieter Kaufmann · Heidenheim, DE
Willi Malikowski · Aschaffenburg, DE
Joerg Beuers · Gelnhausen, DE
Harald Krappitz · Kirchheim unter Teck, DE

Key dates

Filing date	Sep 1, 1993
Grant date	Aug 30, 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 with working temperatures under 630.degree. C. containing 45 to 80 wt. % silver, 5 to 13 wt. % copper, 10 to 25 wt. % gallium, 8 to 20 wt. % zinc, and 0 to 5 wt. % indium and/or tin.

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