蠕墨铸铁的石墨形状有伪鳞状、块状和细片状,但多半为蠕虫状。蠕墨介于片状石墨和球状石墨之间。制取蠕墨铸铁主要是用稀土金属添加剂(其中包括铈混合稀土金属、1和型复合变质剂)。本文研究了用Ni—Mg合金制取蠕墨铸铁的条件及其稳定性。铁水用60公斤酸性高频感应电炉熔炼,炉料为炼钢与铸造生铁及废钢。在炉内加碳化钙粉对铁水脱硫,采用冲入法,在30公斤的铁水包 Graphite compacted graphite graphite shape pseudo-squamous, massive and fine, but mostly worm-shaped. Vermicular graphite between flake graphite and spherical graphite. Preparation of compacted graphite cast iron is mainly used rare earth metal additives (including rare earth cerium mixed metal, 1 and type compound modifier). This paper studies the conditions and stability of vermicular graphite cast iron made from Ni-Mg alloy. Molten iron with 60 kg acidic high frequency induction furnace smelting, charging for the steel and cast iron and scrap. In the furnace with calcium carbide powder on the hot metal desulfurization, using the punching method, in the 30 kg of hot metal package