【摘要】 本文叙述了为生产4.5tRe-Mg蠕墨铸铁钢锭模所必须的一系列基本试验:蠕化剂的选择、蠕墨铸铁的机械、物理和铸造性能以及蠕墨铸铁钢锭模的使用寿命.结果指出:根据从钢锭模棱角处取样进行观察,当蠕虫状石墨为20～40％,其余为球状石墨时,钢锭模具有最好的使用寿命,比同类型的灰口铸铁钢锭模寿命提高24％.更多还原

【Abstract】 This paper describes a series tests necessary for producing 4.5t ingot mold of Re-Mg treated vermicular graphite cast iron: selection of vermi-modifier, mechanical, physical and casting properties of vermicular graphite cast iron, and the service life of the ingot mold. The results obtained from the samples taken at corners of ingot mold show that the vermicular iron ingot mold with the structure of 20-40% vermicular graphite gives the optimum service life, its mold consumption per ton of steel is 24% lower than that of grey iron ingot mold.更多还原