Horizontal twin roll casting of aluminum alloy A5052

Abstract

This paper describes a horizontal type twin roll strip casting process for producing aluminum alloy strip of A5052. Twin roll casting process is able to produce a strip from molten metal directly. Thus this process has a possibility to reduce total cost of sheet making comparing to conventional rolling process. Strip casting process has some disadvantages. Casting speed depends on the material properties. It is difficult to determine the casting conditions. A 5052 is a typical alloy showing moderate strength among aluminum alloys. It is known as the alloy most frequently used for sheet among aluminum alloys. Because it has relatively high strength, excellent corrosion resistance, castability and weldability, it is used not only as a can lid material but also as a structural member of a vehicle and ship. In this study, the effect of pouring temperature was investigated. Castability, surface conditions and strip thickness were estimated. It was possible to produce strip at different pouring temperature by horizontal twin roll strip casting process. Each surfaces of produced strip were transcribed form the roll surface, and the surfaces had a metallic luster.