维斯塔金属公司的特大2×××系及7×××系铝合金锭铸造

Largest size aluminium alloy billet and slab DC casting at Vista Metals Corporation

扼要地介绍了美国维斯塔金属公司(Vista Metals Corporation)铸造超大硬铝合金(2×××系、7×××系)圆锭及扁锭的工艺。维斯塔金属公司在铸造硬铝合金特大锭方面居世界领先地位,2003年初铸出直径1 068 mm的7175合金圆锭,2004年秋铸出宽2 438 mm、厚1 067 mm、长4 369 mm的2618铝合金扁锭,这都是创世界记录的。特大2×××系及7×××系铝合金锭在航天航空工业、交通运输工业、模具制造业有着重要用途。

On January 10,2003, Vista Metals Corp. in Fontana, California, a well-known producer of aero space aluminium billets and ingots, successfully started production of AA 7175 alloy billet in 1 068 mm diameter. This qualifies as some of the largest diameter aerospace alloy billet produced in the world today. Vista Metals in the fall of 2004, record-setting hard alloy slab measures 2 438 mm wide,1 066.8 mm thick,4 368.8 mm long,and weighs 31.752 t.