为了获得球墨铸铁,苏联在生产上用MK、Ni—Mg和在包内或型内进行处理时用的其它中间合金。但是由于将这些合金加入铁水的方法不完善,除了含有稀贵材料的Ni—Mg中间合金外,其中的大多数都没有给出稳定的结果。本文报导了粉状球化剂在空气流中进行球化过程的研究,以及所得铸铁的质量。球化剂加入专门 In order to obtain ductile iron, the Soviet Union used MK, Ni-Mg and other master alloys for processing in or by the bag in production. However, due to the imperfections in the addition of these alloys to hot metal, most of them, except for the Ni-Mg master alloys containing rare materials, did not give stable results. This paper reports the study of the pulverization of powdery nodulizer in air flow and the quality of the resulting cast iron. Nodulizer added special