| 摘要 |
PROBLEM TO BE SOLVED: To provide an aluminum alloy clad material for heat exchanger, excellent in corrosion resistance. SOLUTION: This aluminum alloy clad material consists of a core material, an Al-Si or Al-Si-Zn brazing filler metal, and a sacrificial anode cladding material. At this time, the core material is composed of an Al alloy which has a composition consisting of 0.8-1.8% Mn, 0.1-1.0% Cu, and the balance Al with inevitable impurities and containing, if necessary, 0.4-1.5% Fe or 0.4-1.5% Fe and 0.1-1.0%; Si and further containing, if necessary, either or both of 0.05-O.2% Ti and 0.05-O.2% Zr, and the cladding material has a composition consisting of 0.02-1.5% Mn and the balance Al with inevitable impurities and containing, if necessary, either or both of 0.3-2.0% Fe and 0.1-1.0% Ni and further containing, if necessary, one or two kinds among 0.1-0.8% Si, 0.005-0.2% In, and 0.05-0.2% Sn.
|
