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

1985-04-05

1988-11-01

Dean, R.

Alloys or metallic compositions

Aluminum base

Copper containing

22826317, 420537, 420540, 420546, 420549, 428654, C22C 2110

Patent

active

047818883

ABSTRACT:
Aluminum brazing alloys for assembling aluminum heat exchangers by brazing which consist essentially of 4.5 to 13.5% of Si, 0.05 to 0.5% of Ca and the balance essentially Al and, additionally may contain Mg in the range of 0.3 to 3.0% or at least Cu component of 2.3 to 4.7% of Cu and 9.3 to 10.7% of Zn. The aluminum brazing alloys have an excellent brazability and provide high strength brazed joints with highly refined microstructure. Such superior properties make the brazing alloys especially suited for the fabrication of superhigh pressure heat exchangers.

REFERENCES:
patent: 1657389 (1928-01-01), Gwyer et al.
patent: 3843333 (1974-10-01), Woods
patent: 4068645 (1978-01-01), Jenkinson

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