| 变极性脉冲MIG焊稳弧系统研究 |
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| 引用本文： | 廖平,殷树言,黄鹏飞,卢振洋,蒋观军.变极性脉冲MIG焊稳弧系统研究[J].电焊机,2006,36(2):33-35. |
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| 作者姓名： | 廖平 殷树言 黄鹏飞 卢振洋 蒋观军 |
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| 作者单位： | 北京工业大学,机械工程与应用电子技术学院,北京,100022 |
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| 摘 要： | 在薄板铝合金变极性脉冲MIG中。两个电极材料均为冷阴极材料，电极发射电子困难，当极性发生变换时，尤其是在小电流过零时更容易出现电孤熄灭现象，针时此问题，设计了一种全桥式高压脉冲稳弧电路，可提供双向尚压稳弧脉冲，在电弧过零时直流高压电源通过IGBT开关管施加一个瞬间的高压脉冲，能可靠再引燃电弧，使变极性脉冲MIG的焊接过程不会出现断弧现象，保证了焊接过程稳定．
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| 关 键 词： | 变极性 稳弧 |
| 文章编号： | 1001-2303(2006)02-0033-03 |
| 收稿时间： | 2006-01-20 |
| 修稿时间： | 2006年1月20日 |
Study on arc stabilization system of variable polarity pulsed MIG |
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| LIAO Ping,YIN Shu-yan,HUANG Peng-fei,LU Zhen-yang,JIANG Guan-jun.Study on arc stabilization system of variable polarity pulsed MIG[J].Electric Welding Machine,2006,36(2):33-35. |
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| Authors: | LIAO Ping YIN Shu-yan HUANG Peng-fei LU Zhen-yang JIANG Guan-jun |
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| Affiliation: | Dept. of Mechanical Engineering and Applied Electronic Beijing University of Technology, Beijing 100022,China |
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| Abstract: | Duringg the variable polarity pulsed MIG welding process of thin sheet of aluminum alloy,hoth the electrodes are cold cathode,the are is easy to distinguish when polarity varies especially the current crosses zero.So a full bridge high voltage are stabilized eircuit is developed.A transient high voltage pulse is generated by DC high vollage power supply when the current crosses zebra,the arc is stabilized by re-ignition and die arc-halting is avoided.The steady welding procedure can be obtained. |
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| Keywords: | PMIG |
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