arc column 发射光谱分析电弧光源燃弧后所产生电弧的一部分。 如直流电弧光源的电弧由弧柱、弧焰、阳极点和阴极点组成。 弧柱为电弧的阴极、阳极(上、下电极)之间的部位。 弧柱中间具有稳定的放电条件及均匀的放电亮度，常被用于光谱激发的主要区域。
The research indicates that variation of arc power is the exciting source, andtone channel is made up of the shielded gas, arc column, magnetic field and temperature field during the welding process.
指出电弧能量变化是电弧声的声源激励,保护气、弧柱及其周围磁场及热场构成电弧声道系统,电弧声是声源激励与电弧声道系统的共同作用的结果。
参考来源 - GMAW电弧声参数化模型及模式识别·2,447,543篇论文数据，部分数据来源于NoteExpress
通过测量和分析计算获得了弧柱和热区的径向及轴向温度分布。
Through the theoretical calculation, the radial and axial temperature distribution of arc column and the thermal boundary region were obtained.
但同时也会使暴露在环境中的弧长增长，弧柱损失的能量增多。
But at the same time also can make exposed to the environment, arc arc length growth of increased energy loss column.
结果表明：电弧弧柱的高温效应剧烈排斥冷气流的混入，使CVD过程受到抑制。
The results indicate that high temperature effect of arc column strongly prevents cold gas current from getting in, so as to restrain CVD process.
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