Abstract
A twin roll caster has some advantages, for example they are energy saving, space saving, and low running cost. We tried strip casting of aluminum alloys using a vertical type twin roll caster. The twin roll caster, which has copper rolls, cast strips without using lubricant. Strips of A1050,A3004,A5083,A5182,A6063 and AC4CH could be cast at speeds higher than 60 m/min. Aluminum alloy, which freezing zone is wide like A5182,could be cast. The strips were thinner than 3mm. The strips could be cold rolled until 0.5mm without broken.