| 摘要 |
PROBLEM TO BE SOLVED: To provide an aluminum alloy composite material excellent in bending fatigue characteristics, corrosion resistance and strength and suitable for the radiator and heater core of an automotive heat exchanger. SOLUTION: This material is the one in which an Al alloy contg., by weight, 0.15 to 0.8% Si, 0.1 to 0.5% Fe, 0.8 to 1.6% Mn, 0.2 to 0.8% Cu, and the balance Al with inevitable impurities is used as a core, and one side of the core is clad with a sacrificial anode material contg. 1 to 10% Zn, Cu in the range of±30% of the content of Cu in the core, and the balance Al with inevitable impurities.
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