焊接过程动态参数图形的实时显示是三相次级整流电阻焊质量在线评估的一种有效方法。
Graphic display of DC spot welding dynamic process is an effective way for online welding quality control.
计算结果表明：三相次级整流电阻焊焊接电流基本上是连续的，负载感抗变化对其影响很小。
The calculating result shows that the welding current of 3-phase DC resistance weld is continuous, and the changing of induction reactance has little influence on it.
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