Process for producing flux for brazing

Details Process for producing flux for brazing Process for producing flux for brazing

1988-06-07

1989-12-19

McDowell, Robert

Metal treatment

Compositions

Fluxing

228223, B23K 3534

Patent

active

048880671

ABSTRACT:
A flux for brazing is prepared from 31.5% to 56.2% of KF and 68.5% to 43.8% of at least one of .UPSILON.-AlF.sub.3 and finely divided .beta.-AlF.sub.3. The KF is dissolved in water, and the AlF.sub.3 is then placed into the resulting KF aqueous solution to react the KF with the AlF.sub.3. The reaction product is dried.

REFERENCES:
patent: 3951328 (1976-04-01), Wallace et al.
patent: 4723597 (1988-02-01), Sonoda

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