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本文分析了裂相整流粗丝(φ4)CO_2焊接电源的线路参数。指出电流谷点值i_(dmin)对于能否维持焊接电弧的稳定燃烧关系极大,详细分析了影响i_(dmin)的各个因素及其控制途径,提出计算i_(dmin)的简易公式以及估算辅桥电阻R的经验公式。
In this paper, the line parameters of split phase coarse wire (φ4) CO_2 welding power supply are analyzed. It is pointed out that the current valley value i_ (dmin) has a great relationship with the stable combustion of the welding arc. The various factors that affect i_ (dmin) and the control methods are analyzed in detail. A simple formula to calculate i_ (dmin) Bridge resistance R empirical formula.