利用镁合金快速定量测氢仪研究了通Ar除气对AZ91镁合金熔体除气处理的效果,以及通Ar流量、通Ar时间及精炼温度三因子对精炼效果的影响.运用正交试验方法找到了通Ar除气工艺的最佳工艺参数匹配,即通Ar流量为1～1.5L/min,通Ar时间为20～25min,镁液温度为725～750℃.揭示了主要工艺参数对镁合金熔体净化的影响规律.
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