Fremgangsm}te ved kornforfining av aluminium samt kornforfiningslegering for utf!relse av fremgangsm}ten

摘要

A method for grain refining aluminium and aluminium alloys in which a siliconboron alloy containing between 0.01 to 4.0% by weight of boron is added to molten aluminium or aluminium alloy in such an amount that the resulting melt of aluminium or aluminium alloy contains at least 50 ppm boron. The invention also relates to a grain refining alloy for aluminium and aluminium alloys in the form of a siliconboron alloy containing between 0.01 and 4.0% by weight of boron.