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 anode material layer clad on at least one surface thereof. The sacrificial anode material layer comprises an aluminum alloy containing 0.10 mass% or more and less than 1.50 mass% Si, 0.10 to 2.00 mass% Mg. Present therein is 100 to 150000 pieces/mm 2 of Mg-Si-based crystallized product having a circle-equivalent diameter of 0.1 to 5.0 µm, 7 pieces/mm 2 or less of Mg-Si-based crystallized product having a circle-equivalent diameter of more than 5.0 µm and 10.0 µm or less in the sacrificial anode material layer.