process for the production of continuously cast aluminiumbleches

摘要

Manufacturing of magnesium and manganese containing aluminum alloy involves continuous casting to form cast slab, hot rolling the cast slab to form a hot rolled strip, annealing cooled rolled strip and cold rolling the annealed strip. The annealing is carried out at 470 - 560 [deg]C for 3 - 25 hours to produce a microstructure with dispersed intermetallic particles no larger than 10 micrometers. The sheet material has an elongation of at least 300% in tensile test at 500[deg]C and a strain rate of 10 - 3s - 1.