Diaphragm molding aluminum alloy plates and their preparation

Details Diaphragm molding aluminum alloy plates and their preparation Diaphragm molding aluminum alloy plates and their preparation

C - Chemistry, Metallurgy

22

C

C22C 21/06 (2006.01) B29C 33/38 (2006.01) B29C 33/44 (2006.01) B29C 43/36 (2006.01) B29C 51/30 (2006.01) C22F 1/047 (2006.01)

Patent

CA 2043852

ABSTRACT Aluminum alloy plates best suited for diaphragm molding of composite thermoplastic resin material are provided. The alloy composition consists essentially of, in % by weight, 2.0-6.0% of Mg, 0.0001-0.01% of Be, 0.001-0.15% of Ti alone or in combination with 0.0001-0.05% by weight of B for grain refinement, 0-0.2% of Fe, 0-0.2% of Si, 0-0.05% of Mn, 0- 0.05% of Cr, 0-0.05% of Zr, and 0-0.05% of V as impurities, and the balance of aluminum. Intermetallic compound particles and recrystallized grains have a specific size. The plate manufacturing process involves the steps of DC casting, heating, hot rolling, optional intermediate annealing, cold rolling, and optional final annealing, or the steps of continuous casting, optional intermediate annealing, cold rolling, and optional final annealing.

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