Flux and process for brazing aluminum material

Details Flux and process for brazing aluminum material Flux and process for brazing aluminum material

1989-06-27

1990-02-20

Godici, Nicholas P.

Metal fusion bonding

Process

With protecting of work or filler or applying flux

228224, 228248, 148 24, 148 26, B23K 35363

Patent

active

049019090

ABSTRACT:
The instant flux and paste containing same are for brazing aluminum material. The flux consists essentially of a particulate blend of aluminum fluoride, potassium fluoride, and cesium chloride, or rubidium chloride or a mixture of cesium chloride and rubidium chloride, the fluorides being complexed with each other or not complexed or being a mixture of the complexed and not complexed fluorides. Lithium fluoride, preferably complexed with the other fluorides, is an optional ingredient. The weight fraction of the total fluorides is between about 1/10 and about 9/10, and the A1F.sub.3 -KF weight ratio is between about 4:1 to about 0.4:1.

REFERENCES:
patent: 4643348 (1987-02-01), Takahashi

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