Aluminum brazing material for use in aluminum heat exchanger

Details Aluminum brazing material for use in aluminum heat exchanger Aluminum brazing material for use in aluminum heat exchanger

1985-03-15

1988-11-15

Dean, R.

Alloys or metallic compositions

Aluminum base

Zinc containing

22826317, 420531, 420532, 420534, 420537, 420541, 420546, 420549, 428654, C22C 2110

Patent

active

047850922

ABSTRACT:
Aluminum brazing alloys for assembling aluminum heat exchangers by brazing which consist essentially of 4.5 to 13.5% of Si, from 0.005% to less than 0.1% of Sr and the balance essentially Al and, further, optionally may contain at least one element selected from the group consisting of 0.3 to 3.0% of Mg, 2.3 t0 4.7% of Cu and 9.3 to 10.7% of Zn. The aluminum brazing alloys provide high strength brazed joints with highly refined microstructure and brazing operation can be performed in a good condition without causing any detrimental cavity. Such excellent properties make the brazing alloys especially suited for the fabrication of superhigh pressure heat exchangers.

REFERENCES:
patent: 3811177 (1974-05-01), Schoer et al.
patent: 4068645 (1978-01-01), Jenkinson
patent: 4464442 (1984-08-01), McDonald et al.

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