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The operation principle of switch type field-effect tube DC &. pulse are welding power source and the principle of getting pulse out-put are introduced in this peper. 本文主要介绍新型开关式场效应管直、脉两用弧焊电源的工作原理;
The principle of PFC and the methed of controling PFC by means of pulse width ndm IC 3524and gives the actual circuit of the inversion are welding power source with PFC function are also analysed. 介绍了逆变式直流弧焊电源的基本原理，以及在逆变式直流弧焊电源中采用功率因数校正（PFC）的必要性，分析了PFC的原理和利用通用的脉宽调制集成电路3524实现PFC控制的方法，给出了具有PFC功能的逆变式直流弧焊电源的实际电路。
The 5mm and 6mm A3 steel plates have been welded by 5kW high power from three-fold resonator TEL CO 2 Laser . The primary factors such as welding power? speed? 采用 5kW三折腔横流CO2 激光器对 5mm、6mm厚的A3钢板进行焊接实验 ,主要研究了焊接功率、速度、离焦量以及侧吹气流量对焊接深度和焊缝宽度的影响 ,并对焊接样品进行金相分析和显微硬度分析
Some of the students are welding capacitor; the others resistor. 学生中的一些人在焊接电容，另一些人在焊接电阻。
Some of the students are welding capacitors; the others resistors. 学生中的一些人在焊接电容，另一些人在焊接电阻。
Some of the students are welding capacitor ; the others resistor. 学生中的一些人在焊接电容,另一些人在焊接电阻。
Design and Study of Single Chip Microcomputer Controlled Inverter are Welding Power Source 单片微机控制弧焊逆变电源的设计研究
It is perfectphase trigger circuit for arc welding power source of scr. 该相控触发电路是晶闸管整流弧焊电源的理想触发电路。
The parts of the bicycle had to be welded together. 自行车上的零部件得焊接在一起。
are welding power source 弧焊电源
pulse plasma are welding power 脉冲等离子弧焊电源
The parts of the crashed car had to be welded. 汽车被撞坏的部分要在修车厂里焊接起来。
Several incidents have been welded into an interesting narrative. 几个情节曲被融合成一个有趣的故事。
It should not be welded autogenously (i.e. 所以使用此焊接合金时应比较小心。
With the cooperation of two pulsed welding power sources,we can realize high-speed welding and good weld shape. 采用两台脉冲焊接电源协同工作的方式,可以实现高速焊接,改善焊缝成形。
are welding power 弧焊电源
TIG welding power source made from SCR and bifilar winding energy saving inductor is introduced in this paper. 研制了一种用双绕组储能电抗器构成的晶闸管TIG焊电源。
Pump case are welded castings steel and steel plates. 泵壳是由铸钢与钢板焊接而成的。
The development of thyristor puls plasma arc welding power source is introduced in this paper. 本文介绍了晶闸管脉冲等离子弧焊电源的研制成果。
The paper deals with the basic principles of the pulsed square wave AC MIG/TIG welding power source. 主要介绍双凹波形脉冲氩弧焊电源的工作原理。