ALUMINUM CLADDING MATERIAL, PRODUCTION METHOD THEREFOR, ALUMINUM CLADDING MATERIAL FOR HEAT EXCHANGERS, PRODUCTION METHOD THEREFOR, ALUMINUM HEAT EXCHANGER USING SAID ALUMINUM CLADDING MATERIAL FOR HEAT EXCHANGERS, AND PRODUCTION METHOD THEREFOR

摘要

Provided are an aluminum cladding material having excellent corrosion resistance, a production method therefor, an aluminum cladding material for heat exchangers having excellent corrosion resistance, a production method therefor, an aluminum heat exchanger using said aluminum cladding material for heat exchangers, and a production method therefor. Said aluminum cladding material comprises an aluminum alloy core material and a sacrificial positive electrode material layer clad upon at least one surface thereof. The sacrificial positive electrode material layer comprises an aluminum alloy containing at least 0.10 mass% and less than 1.50 mass % Si and 0.10-2.00 mass% Mg. Present therein is 100-150,000/mm2 of Mg-Si crystallized products having a circle-equivalent diameter of 0.1-5.0 µm, 7/mm2 of same having a circle-equivalent diameter of more than 5.0 µm and no more than 10.0 µm.