为了解决箱体凝固过程出现球化级别低问题,对影响球化率的原因进行分析,对箱体铸造工艺、合金熔炼工艺、球化处理和孕育工艺进行了完善,最终解决了箱体球化级别低的难题,箱体球化率普遍达到了85%以上,箱体生产取得了较好的经济效益。 In order to solve the problem of low solidification level in the box, the reasons that affect the spheroidization rate were analyzed. The casting process, the alloy melting process, the spheroidization process and the inoculation process of the box were improved. Finally, The problem of low level, the box ball rate generally reached more than 85%, box production has achieved good economic returns.