HIGH-STRENGTH AL ALLOY BRAZING SHEET FOR STRUCTURAL MEMBER OF AL HEAT EXCHANGER

摘要

PURPOSE: To improve the brazing property and corrosion resistance of the high-strength Al alloy brazing sheet. ;CONSTITUTION: The high-strength Al alloy brazing sheet for the structural members of an Al heat exchanger is constituted by cladding an Al alloy brazing filler metal having a compsn. contg., by weight %, 7 to 12% Si, 0.3 to 2% Mg, and 0.03 to 0.2% Bi and consisting of the balance Al and unavoidable impurities on one or both surfaces of an Al alloy core material having a compsn. contg. 0.8 to 1.5% Mn, 0.7 to 1.3% Si, 0.3 to 0.7% Cu, 0.03 to 0.15% Zr, 0.2 to 0.8% Fe, and consisting of the balance Al and unavoidable impurities.;COPYRIGHT: (C)1993,JPO&Japio