ALUMINUM ALLOY SHEET FOR MOLDING, METHOD FOR PRODUCING THE SAME AND ALUMINUM ALLOY BRAZING SHEET

• Main Authors: NARUSHIMA TAKAHIRO, INOUE YUUKI, TANAKA HIROKAZU
• Format: Patent
• Language: English
• Published: 22.09.2014
• Subjects: ALLOYS; CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS; CHEMISTRY; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; FERROUS OR NON-FERROUS ALLOYS; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; METALLURGY; PERFORMING OPERATIONS; SOLDERING OR UNSOLDERING; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS; WELDING; WORKING BY LASER BEAM

PROBLEM TO BE SOLVED: To provide an aluminum alloy sheet for molding having excellent moldability, brazability and strength after brazing and suitably used for the one as a heat exchanger.SOLUTION: The aluminum alloy sheet is obtained by subjecting an aluminum alloy ingot having a composition comprising 1.2 to 2.0% Mn, 0.5 to 1.0% Si and 0.10 to 0.20% Ti in which the content of V as impurities is regulated to 80 ppm or lower, and the balance Al with inevitable impurities, and in which the number of a generated coarse intermetallic compound with a size (diameter equivalent to a circle) of 4 mm or more is 1 piece/mor lower, and the number of a generated intermetallic compound(s) of 1 to less than 4 mm is 10 pieces/mor lower to hot rolling and cold rolling.