Method of preventing the cracking of continuous-cast bars of aluminium-base alloys

摘要

Aluminium-base alloys which tend to form stress cracks during continuous casting are prevented from forming such cracks by incorporation in the alloys of 0.01-0.03 per cent Ti with or without 0.0025-0.01 per cent B. In an example 0.03 per cent Ti and 0.01 per cent B are added to an alloy containing 1.7 per cent Cu, 2.8 per cent Mg. 5.7 per cent Zn, 0.2 per cent Cr and the remainder Al.