The utility model relates to a change-over switch of AC-DC electric welder.
本实用新型涉及一种交直流两用电焊机的转换开关。
It finds better economic overhaul plan and try to make the electric welder repaired reach the original technical properties to meet the demand of pipe production process.
寻求较经济的大修方案，努力使修理后的电焊机达到原有技术性能，以满足钢管生产工艺需要。
For the purpose of economizing on raw materials and reducing consumption, the detailed analysis and design of the regulating circuit of TIG electric welder have been presented in this article.
本着节约材料和减少能源消耗的目的，对新型方波交流TIG焊电源电流的调节电路进行了详细的分析与设计。
When an electric heating method is used for heating, thermal couple and heating coil should be installed closest to the bevel while should not hinder the access of welder to the joint.
采用电加热法加热时，需注意热电偶及加热圈的安装要尽可能靠近坡口，但不得妨碍焊工接近接头。
The Laser supply that is charged by constant electric current . has high energy and long pulse width was developed for laser welder. It has been used for several years.
为激光焊机研制的恒流充电、高能量、长脉冲输出脉冲激光电源，运转数年，表明这种电源安全、可靠、省电、故障率低。
Loose joint electric welding training clamp is a training apparatus that used for making the cumulative oil production plant welder welding training activities and improving water welding technology.
活接式电焊训练夹具是制做用于采油厂电焊工累积带水焊接经验，提高带水焊接技术的一种训练器具。
The name of said invention is "Leakage enhancement electric regulated arc welder".
本发明的名称为“增强漏磁电调式弧焊机”，属机电技术领域。
The name of said invention is "Leakage enhancement electric regulated arc welder".
本发明的名称为“增强漏磁电调式弧焊机”，属机电技术领域。
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