【摘要】 采用频率高于1000Hz的高频脉冲电流,在不同的电流参数下,对HT150灰铸铁进行脉冲电流处理。实验结果表明,在高频脉冲电流作用下铸铁石墨片细化,石墨片变得卷曲,共晶团尺寸减小。电流参数对电流的作用效果有显著影响。更多还原

【Abstract】 By using high frequency (exceeds 1000Hz) pulse electrical source, under different parameters of pulse electrical current, the effects of pulse electrical currents on solidification structure of HT150 gray cast iron are studied. The results show that high frequency pulse electric current can refine and crinkle graphite flake, decrease the dimension of eutectic cell. The effects of pulse electrical current are influenced remarkably by selected parameters of pulse electrical current.更多还原