Soldering flux and method

Details Soldering flux and method Soldering flux and method

1974-08-23

1976-10-26

Rosenberg, Peter D.

Metal treatment

Compositions

Fluxing

75 68R, 75 94, B23K 3534

Patent

active

039881750

ABSTRACT:
A reaction type flux and the method utilizing same in the soldering of aluminum containing products, particularly aluminum-zinc coated ferrous sheet and strip products. Said flux comprising a mixture consisting essentially of, parts by weight, 10 to 14 stannous chloride, 0.25 to 1.5 ammonium chloride, and 0.05 to 0.3 sodium fluoride. Such a flux mixture is characterized by a reaction temperature in the anhydrous condition of less than about 470.degree. F., preferably below about 450.degree. F., thereby permitting the application of electric iron techniques in the soldering operation.

REFERENCES:
patent: 2788303 (1957-04-01), Ballard
patent: 3604104 (1971-09-01), Glasgow

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