通过对国内外钢厂生产的气门弹簧钢54SiCr6中氧化物夹杂的尺寸和成分的对比分析,发现国内A厂在氧化物夹杂尺寸上控制得较好,但塑性与国外钢厂相比,存在一定的差距。其主要原因是氧化物夹杂中Al2O3含量过高,在冶炼过程中采取以一些措施,降低钢水中的AlS含量,可以提高氧化物夹杂的塑性。 By comparing the size and composition of oxide inclusions in 54SiCr6 valve spring steel produced by domestic and foreign steel mills, it is found that the domestic A plant has a better control of the inclusion size of oxide, but there is a certain degree of plasticity compared with foreign steel mills difference. The main reason is the inclusion of Al2O3 in the oxide content is too high, in the smelting process to take some measures to reduce the AlS content in the molten steel, can improve the plasticity of oxide inclusions.