To protect the power component of electric welding machine,overtension and undertension protection are circuit designed.

为保护功率器件设计了过压欠压电路。

It has a laser welder, a video display screen, and a buzzsaw.

它装备了一部激光、一部视频显示屏和一个圆锯。

A control system based on single chip microprocessor is designed for submerged arc welder with magnetrol power source.

针对磁放大器电源埋弧自动设计了单片控制系统。

The UN250 butt-welding machine adopts manual flash prewarming, hydraulic pressure upset mode, is suitable to weld large diameter and section weldment.

UN250对用手动闪光热、液压顶锻，适合接大直径大截面件。

The welding machine has strong anti-electricity fluctuation ability,it is available to produce in small quantity.At the same time,further research should be held on accurancy accouplement.

得出该抗电网波动能力强、可小批量生产，同时还应从精确匹配上进一步研究结论。

Packng tools, Packing cutter, Gasket cutter, SWG winding machine, bending machine, Groover, Angling machine, Double jacketed machine, Gasket cutting machine, Puncher, Calender, Braider and so on.

密封械 ：盘根工具，盘根切割工具，垫片切割工具，缠绕，盘环，铣槽，倒角，包覆，双翦，点，冲齿，辊压，盘根编织。

To solve the problems of low quality, low efficiency and high cost of steel mesh reinforcement used in the mines, one kind of special spotwelder was developed.

摘要为解决矿山用钢筋网架生产过程中出现产品质量差、效率低、成本高等问题，研制出一种专用钢筋网架。