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药芯焊丝陶质衬垫CO2半自动单面焊焊缝中的夹杂物偏多。通过对焊缝中夹杂物的微观金相分析、计算机图像分析系统定量分析、扫描电镜形貌分析、X射线能谱微区成分分析及俄歇电子能谱微区成分分析，证实该类夹杂物主要是球状氧化物。球状氧化物是由于药芯焊丝在强氧化性气氛中焊接冶金过程脱氧不完全产生的。并从药芯焊丝焊接冶金的特点，探讨了由于夹杂物增多导致产生焊接缺陷的原因及防止措施。
Flux-cored wire ceramic liner CO2 semi-automatic one-sided weld in the inclusions more. Based on the micro-metallographic analysis of inclusions, the quantitative analysis of computer image analysis system, the morphology of scanning electron microscopy, the analysis of X-ray energy spectrum micro-composition and the Auger electron spectroscopy micro-composition analysis, it is confirmed that these inclusions Mainly spherical oxide. Spherical oxides due to the flux-cored wire in the strong oxidizing atmosphere of the welding metallurgy process is not completely deoxygenation. And from the characteristics of flux cored wire welding metallurgy, the reasons and prevention measures of welding defects caused by the increase of inclusions are discussed.