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短路液桥爆断前几百微秒内所积聚的能量，直接影响着短路过渡ＣＯ２焊飞溅水平的大小。本文针对普通ＣＯ２焊逆变电源的动态性能不能满足短路过渡ＣＯ２焊波控方法的要求，焊接电源难以实现在液桥爆断前迅速减小电流的问题，提出了一种在波控方法中采用可饱和电感作为ＣＯ２逆变焊机续流电感的方案。理论分析和试验效果证明，此种方法可以大大改善逆变电源的动态性能，显著提高了短路液桥缩颈过程中电流的衰减速度，从而减小了短路液桥爆断前积聚的能量及液桥爆断时的液桥直径，达到了减小飞溅的效果。
Short circuit liquid bridge burst within a few hundred microseconds before the accumulation of energy, a direct impact on the short-circuit transition CO2 welding splash level. In this paper, the dynamic performance of common CO2 welding inverter power supply can not meet the requirements of the short-circuit transition CO2 welding wave control method, the welding power supply is difficult to realize the rapid reduction of current before the liquid bridge is broken, Saturable inductors as CO2 inverter welding freewheeling inductance program. Theoretical analysis and experimental results show that this method can greatly improve the dynamic performance of the inverter and significantly reduce the current decay speed in the process of shortening liquid bridge necking so as to reduce the energy and liquid The diameter of the bridge when the bridge is broken, to reduce the splash effect.