Corrosion-resistant aluminum alloy brazing composite

Details Corrosion-resistant aluminum alloy brazing composite Corrosion-resistant aluminum alloy brazing composite

1994-06-08

1995-03-21

Ramsey, Kenneth J.

Metal fusion bonding

Process

Plural joints

22826251, B23K 3528

Patent

active

053988647

ABSTRACT:
A novel aluminum alloy brazing composition is provided consisting of a core alloy consisting of a core alloy and a cladding on at least one side of the core alloy and wherein the core alloy consists essentially of manganese from about 0.8 to about 1.5%, silicon from about 0.45 to about 0.75%, titanium from about 0.03 to about 0.1%, a combined magnesium, copper and zinc content not in excess of about 0.15%, an iron content not in excess of about 0.3%, the total quantity of other impurities not exceeding about 0.15%, balance aluminum; and wherein the cladding consists of an AA 4XXX series aluminum alloy. The aluminum alloy brazing composition can be employed in the brazing of evaporators such as plate-fin evaporators utilized in the automotive field.

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