研究了在汽缸套离心铸造过程中加入电磁场对合金元素偏析和力学性能的影响。结果表明:随电磁场强度的提高,汽缸套材料中的合金元素偏析程度减轻,汽缸套内外层组织差别明显减小,平均硬度提高,由外向里的硬度差减小,抗拉强度得到提高。 The effect of adding electromagnetic field on segregation of alloy elements and mechanical properties during centrifugal casting of cylinder liner was studied. The results show that the segregation of alloying elements in the material of the cylinder liner is reduced with the increase of the intensity of the electromagnetic field, the difference of the inner and outer layers of the cylinder liner is obviously reduced, the average hardness is increased, the hardness difference from outside to inside is reduced, and the tensile strength is improved.