Patent · US Expired

Solderless aluminum brazing

US6019856A · kind A · utility

6Cited by

2References

14Claims

0Family size

Assignee

SOLVAY FLUOR und DERIVATE GmbH · DE

Inventors

Thomas Born · Holle, DE
Heinz-Joachim Belt · Burgwedel, DE

Key dates

Filing date	Oct 29, 1997
Grant date	Feb 1, 2000
Priority date	—
Expiry date	Oct 29, 2017

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB23K2103/10
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A method for aluminum brazing, in which the addition of a solder is no longer necessary. For this purpose a flux is used which contains 6 to 50 wt-% of potassium fluorosilicate and 50 to 94 wt-% of potassium fluoroaluminate. The flux can be used, for example, in the form of an aqueous suspension or paste.

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