然后光束沿着四周成弧状折回一个充满负电的主能量通行孔径。
The beam then arcs circumferential ly back to a negatively charged high energy flux aperture.
该方案不仅克服了传统方案存在的主维弧干涉现象，而且可大大降低钨电极的烧损，提高焊接过程的稳定性。
This scheme not only eliminates the interference between main arc and pilot arc, but also reduces the deterioration of the tungsten electrode and improves the stability of welding process.
本文介绍了KLG - 50型空气等离子弧切割机的主回路，控制电路和程序控制电路的工作原理及调试结果。
The principle and adjustment result re of the main circuit, control circuit and program control circuit of our KLG-50 plasma arc cutting machine are introduced in this paper.
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