我厂1981年生产J1113A压铸机产品时,采用蠕墨铸铁铸造液压系统中的高压阀体,获得了较球墨铸铁更为理想的效果。我厂蠕铁蠕化工艺采用“非引爆”及6#合金“引爆”的二种方法,第一种方式采用稀土—硅—钙(Re20.8％,Ca12.79)合金作蠕化剂,将蠕化合金1.6％同萤石拌均匀(萤石量是蠕化剂的20％),一半置于铁水包内正对冲入铁水的一侧,另一半在 I plant in 1981 J1113A die-casting machine products, the use of compacted graphite cast iron hydraulic system in the high-pressure valve body, obtained more than ductile iron more desirable results. The two methods of “non-detonation” and “detonation” of 6 # alloy are adopted in the creep process of vermicular iron in our factory. The first method adopts rare earth-silicon-calcium alloy (Re20.8%, Ca12.79) The 1.6% of the alloy with fluorite fluorite uniform (fluorite is the amount of 20% of the vermiculite), half placed in the ladle just right into the molten iron side, the other half in the