本文对球铁喷球化工艺用球化剂进行了实验研究。实验结果指出,采用低镁高稀土的复合球化剂,其球化效果远远高于单一稀土硅铁球化剂。这种复合球化剂可用稀土硅铁粉和稀土硅铁镁合金粉按比例机械混合来达到所要求的成分。采用喷吹球化工艺时,球化处理和孕育处理可同时完成。 In this paper, the ball nodular iron balling process technology experiments. The experimental results show that the composite spheroidizing agent with low magnesium and high rare earth has much higher spheroidizing effect than single rare earth ferrosilicon nodulizer. This composite nodulizer can be rare earth ferrosilicon powder and rare earth ferrosilicon magnesium alloy powder by mechanical mixing to achieve the desired composition. Spray balling process, the ball treatment and inoculation can be completed at the same time.