The method shows a number of advantages over other existing methods for the desulphurization of blast-furnace cast irons. The method can also be used for the treatment of liquid iron in a cupola forehearth for obtaining high quali-tymagnesium cast irons.

• 这种方法还用于冲天炉铁液处理,铁液在冲天炉前炉内吹镁粉处理后,浇铸成具有“三区结构”的钢锭模,其寿命比原来的灰铁钢锭模提高两倍,这一新工艺与现有的液态金属加粉剂的二次处理方法相比,具有一系列优点:粉剂利用率高,处理成本低;