| 摘要 |
PROBLEM TO BE SOLVED: To provide an aluminum alloy-cladded material which has superior formability, internal brazing property and internal and external corrosion resistance, and is suitably used for materials of a tube, a header plate and piping in a heat exchanger made of an aluminum alloy, particularly in an automotive heat exchanger. SOLUTION: The cladded material of the aluminum alloy has a sacrificial anode material cladded on one surface of a core material and a brazing filler metal of an Al-Si alloy cladded on the other surface. The core material comprises 0.7-2.0% Si, 0.5-1.0% Fe, 0.8-1.8% Mn, 0.02-0.3% Cr, 0.02-0.3% Zr, 0.05-0.35% Ti and the balance Al with impurities. The sacrificial anode material comprises 0.7-2.0% Si, 0.5-1.0% Fe, 0.8-1.8% Mn, 0.02-0.3% Cr, 0.02-0.3% Zr, 0.5-10% Zn and the balance Al with impurities. COPYRIGHT: (C)2004,JPO&NCIPI
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