利用弧焊逆变电源具有优异的可控性和快速响应能力的特点,以波控技术为基本指导思想,对应用微机技术控制CO2焊短路过渡燃弧能量进行研究。试验结果表明,采用一种参数自调整模糊控制方法,对稳定燃弧段电流的下降斜率进行控制,起到了燃弧电子电抗器的作用。焊接工艺试验表明,焊接过程稳定,短路过渡频率稳定,焊接飞溅和成形得到了较好的改善。 Using arc welding inverter with excellent controllability and fast response ability, wave control technology is the basic guiding ideology, and the application of microcomputer technology to control the arc welding energy of CO2 welding short circuit transition is studied. The experimental results show that using a self-adjusting fuzzy control method to control the falling slope of the steady arc current, it plays the role of arc reactor. Welding process tests show that the welding process is stable, short-circuit transition frequency stability, welding spatter and forming have been better improved.