| 摘要 |
PURPOSE: To obtain a fin material having high strength, furthermore excellent in electric conductivity (heat conductivity), capable of obtaining excellent cathode corrosion inhibition effect by the suppression of the evaporation of Zn even in vacuum brazing in particular and moreover excellent in high temp. stength such as high temp. buckling resistance. CONSTITUTION: This high strength aluminum alloy fin material for a heat exchanger excellent in cathode corrosion inhibition effect and heat conductivity is the one having a compsn. contg., by weight, 0.1 to 1.5% Si, 0.1 to 1.5% Fe, 0.05 to 0.7% Cu, 0.5 to 2.0% Mn, 0.1 to 1.0% Ni, 0.02 to 1.0% Ca and 1.0 to 3.5% Zn or furthermore contg. one or >= two kinds among 0.005 to 0.3% In, 0.005 to 0.3% Sn, 0.05 to 0.3% Mg and 0.05 to 0.3% Zr, and the balance aluminum with inevitable impurities. |
