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本文通过对影响电弧稳定性及焊缝成形因素的分析，叙述了 CO2下坡焊焊接工艺的操作要点，有效地控制了 CO2下坡焊焊瘤、未焊透等焊接缺陷的产生。
Based on the analysis of the factors affecting the stability of the arc and the forming of the weld, this paper describes the operating points of the CO2 downhill welding process and effectively controls the generation of welding defects such as CO2 down-slope welding and incomplete penetration welding.