Patent ID: 6261706
Filing Date: 2001-07-17
Classification: B23K,B32B,C22C,F28F,Y10S,Y10T

Abstract:
An aluminum alloy clad material for heat exchangers exhibiting high strength and excellent corrosion resistance comprising a sacrificial anode material which is clad on one side of a core material, wherein the core material comprises an aluminum alloy comprising 0.3-2.0% of Mn, 0.25-1.0% of Cu, 0.3-1.1% of Si, and 0.05-0.35% of Ti with the remaining portion consisting of aluminum and impurities, the sacrificial anode material comprises an aluminum alloy comprising 1.5-8% of Zn, 0.01-0.8% of Si, and 0.01-0.3% of Fe with the remaining portion consisting of aluminum and impurities, and the total number of particles of Si compounds and Fe compounds with a particle diameter (circle equivalent diameter) of 1 .mu.m or more present in the sacrificial anode material matrix is 2.times.10.sup.4 or less per 1 mm.sup.2.