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分别采用稀土球化剂Fe Si Mg7RE1和Fe Si Mg8RE5进行球化处理,硅钡孕育剂进行孕育处理,分析孕育剂加入量对耐热球铁性能的影响。结果表明,合金硬度随着孕育剂量的增加先升高尔后下降。用Fe Si Mg8RE5球化剂处理的合金抗拉强度明显高于Fe Si Mg7RE1。当孕育剂加入量为1.0%时,合金的伸长率达到最大值。
The rare earth nodulizers Fe Si Mg 7 RE 1 and Fe Si Mg 8 RE 5 were respectively used for the spheroidization treatment and the silicon barium inoculants for inoculation. The effects of inoculant addition on the properties of the iron were investigated. The results showed that the hardness of the alloy increased first and then decreased with the increase of inoculation dosage. The tensile strength of the alloy treated with Fe Si Mg 8 RE5 nodulizer was significantly higher than that of Fe Si Mg 7 RE1. When the amount of inoculant was 1.0%, the elongation of the alloy reached the maximum.