本文详述了利用喷射碳化钙去硫后,再喷入镁粉-碳化钙混合物作球化处理,以制得球墨铸铁.利用这个方法可以达到总定质量的目的,在国外已把这一工艺当作扩大球墨铸铁使用范围的重要措施之一,国内很多工厂曾用此法进行过试验,但均未得出完满的结果.文中所介绍的喷射设备可以克服有些单位喷不进去的问题,但并不等于说这设备是非常理想的. This article details the use of jetted calcium carbide desulfurization, and then injected into the magnesium powder - calcium carbide mixture for balling to obtain ductile iron. The use of this method can achieve the purpose of total quality, has this technology in foreign countries As one of the important measures to expand the use of ductile iron, many factories in our country have tested this method, but no satisfactory results have been obtained. The spraying equipment introduced in this paper can overcome the problem that some units can not be sprayed in, Does not mean that this device is very desirable.