从小电流到大电流都可以保持稳定电弧。
Stable electric arc can be ensured from undercurrent to high current.
在进行交流TIG焊时，需要增加一些较复杂的控制方式，如：阴极雾化作用、消除和减小直流分量、稳定电弧等，以保证焊接的正常进行。
In AC TIG welding, it needs add some complex control method to ensure the quality of welding, such as negative-pole atomization affects, D. c. of elimination and reduce, and arc stabilizing etc.
电弧稳定，飞溅较少和熔透深，可确保焊接质量良好。
Stable arc, less spatter and deep penetration can ensure welding quality well.
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