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

为保护焊机的功率器件设计了过欠电路。

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

它装备了一部激光焊机、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.

针对磁放大器式电源埋弧自焊机设计了单片机控制系统。

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

UN250对焊机采用手光热、锻的方式，适合焊接大直径大截面的焊件。

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.

得出该焊机抗电网波能力强、可小批量生产，同时还应从精确匹配上进一步研究的结论。

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.

密封机械 ：盘根工具，盘根切割工具，垫片切割工具，缠绕机，盘环机，铣槽机，倒角机，包覆机，双翦机，点焊机，冲齿机，辊机，盘根编织机。

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的产品质量差、效率低、成本高等问题，研制出一种专用钢筋网架焊机。