在螺柱焊时，弧柱的轴线偏离螺柱轴线，这种现象称为电弧偏吹。
When the stud welding, arc column axis deviation stud axis, this phenomenon is called electric arc blow.
在螺柱焊时，计入固有磁场的影响磁场有：金属钣材的带电磁场；铁磁物质的分布量和焊钳电缆的磁场。
When stud welding, included in the intrinsic magnetic field the influence of magnetic field are: metal coin material with electromagnetic field; The distribution of ferromagnetic material and the magnetic field of electrode holder cable.
电弧偏吹常造成电弧不能稳定燃烧，使焊缝成形变坏，严重时甚至使焊接无法进行。
Arc blow often cause arc not stable combustion, the weld deformation bad, serious when even cannot make the welding place.