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通过理论分析及实验，探讨了手工电弧焊焊条药皮中添加金属镁粉的脱硫效果。研究表明：金属镁粉对焊缝金属的脱硫是有较明显效果的。
Through theoretical analysis and experiment, the desulfurization effect of adding magnesium metal powder in the hand arc welding electrode coating was discussed. The results show that: the metal magnesium powder on the weld metal desulfurization has a more significant effect.