Patent ID: 6387540
Filing Date: 2002-05-14
Classification: B32B,C22C,C23F,F28D,F28F,Y10T

Abstract:
An aluminum alloy composite material for heat exchangers which is formed by cladding one side of an aluminum alloy core material with a sacrificial corrosion-protective aluminum alloy which contains Zn more than 4.0 wt % but 15.0 wt % or less, 0.1 to 3.0 wt % of Fe, and 0.2 to 3.0 wt % of Ni, with the balance being made of aluminum and unavoidable impurities, and by cladding the other side of the core material with a filler alloy of Alâ€”Si-series, wherein the aluminum alloy core material contains 0.05 to 0.8 wt % of Fe, 0.05 to 2.0 wt % of Mn, and 0.05 to 2.0 wt % of Ni, with the balance being made of aluminum and unavoidable impurities.