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通过对型内球化成形件的细微夹杂物分析，利用扫描电镜、能谱仪等检测手段，研究了夹杂物形态、成分和对球铁件机械性能的影响。
The effects of inclusions, composition and mechanical properties on the ductile iron parts were investigated by means of the analysis of fine inclusions in the in-spherical parts and by means of scanning electron microscope and energy dispersive spectrometer.