电弧

Short-circuit,overload,resistance of line or cable's connection overlarge,which cause line overheat,making sparkle and electric arc.

文摘：介绍了配电线路在运行中发生短路、过负荷以及导线或电缆接头处接触电阻过大而引起导线过热、产生火花和电弧引起火灾事故的原因。

Steel gas mains by electric arc, oxy- acetylene flame, or other welding

结构钢材焊接工以电弧、氧乙炔焰或其他焊接工序，割或焊接结构钢材，包括

In CO2 gas metal arc welding, the difficulty hi seam tracking by pendular arc sensor is how to attain the tolerance signal of weld joint.

在CO_2气体保护焊中，采用摆动电弧传感器进行焊缝跟踪的困难在于如何提取准确的焊缝偏差信号。

The are is interrupted at the first current zero and dose not reignite.

电弧会在第一个电流过零点被切断而不会重燃。

By switching between polarities, arc reignition is made easier so that the HF can be reduced or eliminated.

两极之间的切换，电弧重燃更容易，高频可以降低或消除。

It is proposed that the most important factor to determine the AC flashover criterion is the recovery condition, but not the reignition condition as proposed by others.

决定交流污闪条件的最重要的因素是交流电弧的恢复条件，而不是以往人们所认为的重燃条件。

For AC current, the electrode is either pure tungsten or tungsten with a small amount (up to 0.5%) of zirconia to aid arc reignition and to reduce electrode erosion.

交流电流，电极要么是纯钨，或是钨极中含有少量锆(达0.5%)，有助于电弧重新引燃并减少电极侵蚀。

Slag basicity, foamed slag height, angle of blowing oxygen and reline mode are the main factors influencing lining service life of 20t EAF.

炉渣碱度、泡沫渣高度、吹氧角度、补炉方式等是影响20t电弧炉炉衬寿命的主要因素。

A non-singular single integral mathematical model is adopted to calculate the external intermittent and alternative longitudinal magnetic field acquired by single axisymmetrical and cylindrical hollow coil t which is coaxial to electrode and excitated by a revisable pulsed current of square wave t in austenitic stainless steel GTA welding.

针对奥氏体不锈钢外加纵向磁场的气体保护钨极电弧焊接时，与电极同轴的单个轴对称空心圆柱线圈在双向脉冲矩形励磁电流作用下产生的间歇交变纵向磁场，采用无暇点单积分磁场的数学模型，对＊TAW焊接外加间歇交变纵向磁场进行了数值计算，该方法具有模型简单、计算速度快和精度高等优点并讨论了该间隙交变纵向磁场的分布、磁场的均匀性及其纵向分量与径向分量的比率等规律及其对焊接行为的影响，认为横磁分量将削弱GTAW外加纵向磁场的有利作用，影响磁控电弧的焊接质量

Steel billets are adopted edition of tran scription or strip steel, steel because of its riveting process does not fall into the stove with the pipe, electric arc welding arc-welded pipe and take the initiative; pipe material and its usefulness is not the same but is divided into: galvanized steel riveting , there is no rust steel riveted steel pipe.

钢管采纳的坯料是誊写钢版或者带钢，钢管因其铆接工艺没有同而分成炉焊管，电弧焊接管和主动电弧焊管；焊管因其材料和用处没有同而分成：镀锌铆接钢管，没有锈钢铆接钢管。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。