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本文对我国近年来球墨铸铁的球化剂发展情况作了概要叙述,总的发展趋势是利用我国富有的稀土金属,包括稀土硅铁合金(包钢1号合金)、稀土钙镁硅铁合金(M6合金)、稀土钙硅铁合金以及钇基重稀土合金等进行了广泛系统的试验研究,取得了显著效果,对充分利用我国富有的稀土金属资源,发展具有我国特点的球墨铸铁球化剂以及提高和稳定球墨铸铁的质量都有重大意义。
In this paper, the development of nodulizer in ductile iron in recent years in China is summarized. The general trend of development is to utilize the rich rare earth metals in our country, including rare earth ferrosilicon alloy (Baotou No.1 alloy), rare earth calcium magnesium ferrosilicon alloy (M6 alloy ), Rare earth calcium ferrosilicon alloy and yttrium-based heavy rare earth alloy, etc., and achieved remarkable results. To make full use of the rich rare earth resources in our country, the development of nodular cast iron nodulizer with characteristics of our country and the improvement and stabilization The quality of ductile iron is of great significance.