Casting of aluminum alloy strip by an unequal diameter twin roll caster equipped with a scraper

Abstract

A single-roll caster equipped with two scrapers and an unequal-diameter twin-roll caster equipped with two scrapers are proposed for casting clad strip without centerline porosity. Although usually found in roll cast 5182 strip, no centerline porosity occurred in the 5182 strip, which was cast by the unequal-diameter twin-roll caster equipped with two scrapers. The interface between the 5182 strips and the 3003 base strip was clear. Both roll casters could cast the clad strip at 30 m/min.