与一般的单电弧焊接方法相比，等离子mig焊的电弧形态要复杂的多。
In contrast with general welding method of single arc, the forms of Plasma-MIG welding arc are more complicated.
用高速摄像系统及数字示波器对双电极钛钙型碳钢焊条的电弧形态进行了研究。
With high speed camcorder system and digital oscillograph, this paper investigated the electric arc shape of lime titania type twin electrode.
采用平板堆焊的方法及高速摄像系统，研究了双电极钛钙型碳钢焊条的焊芯间距对焊接工艺和电弧形态的影响。
The effect of span between two cores of lime-titania type carbon-steel electrode was investigated using the method of overlay welding on the plate work-piece and high speed camera system.
采用实验与理论分析相结合的方法，研究了外加纵向磁场对TIG焊电弧形态、电弧静特性及焊缝形貌的影响。
By combining experiment with theoretical analysis, the influence of adding axial magnetic field on shape and properties of tungsten inert gas (TIG) welding arc and weld profile was studied.
第二部分研究了在氩气作保护气体的情况下，用变极性TIG焊方法焊钢时，焊接电流、电压的变化情况和电弧形态的变化。
The second is, when steel is welded by means of VPTIG of argon, the changes in current, voltage and arc shape.
第三部分研究了在氦气作保护气体的情况下，用变极性TIG焊方法焊铝时，焊接电流、电弧电压的变化情况和电弧形态的变化。
The third is, when Al is welded by means of VPTIG method of helium, the changes in current, voltage and arc shape.
主要介绍了目前等离子—熔化极气体保护焊在采用不同的电极连接形式下，不同的电弧形态和熔滴过渡方式，以及电弧成分组成和温度分布；
This paper mainly introduces the different arc shapes, metal transfer modes, compositions of arc and temperature distribution in plasma-GMAW with different electrode connection forms at present;
主要介绍了目前等离子—熔化极气体保护焊在采用不同的电极连接形式下，不同的电弧形态和熔滴过渡方式，以及电弧成分组成和温度分布；
This paper mainly introduces the different arc shapes, metal transfer modes, compositions of arc and temperature distribution in plasma-GMAW with different electrode connection forms at present;
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