提出了对组分密度差别较大合金进行电磁 机械复合场处理来获得常规铸锭均匀凝固组织的新工艺 ,研究了电磁 机械复合场处理对Al 2 0Sn合金常规铸锭凝固组织的影响 ,并进行了理论分析 .研究结果表明 ,在固液二相区内 ,处理温度越低 ,常规铸锭垂直方向上不同部位凝固组织的差异越小 . A new process for uniform homogenized microstructure of conventional ingot was proposed by electromechanical compounding field treatment with large difference in composition density. The effect of electromechanical complex field treatment on the solidification structure of Al 2 0Sn alloy ingot was studied and carried out Theoretical analysis.The results show that in the solid-liquid two-phase zone, the lower the treatment temperature, the smaller the differences in the solidified structure in different parts of the conventional ingot in the vertical direction.