逆变方波焊接电磁搅拌电源研究及应用  

Study and application on inverter square wave welding electromagnetic stirring power source

作　　者：常云龙[1] 宋文清[1] 张建民[1] 国旭明[2] 

机构地区：[1]沈阳工业大学材料学院,辽宁沈阳110023 [2]中国科学院金属研究所,辽宁沈阳110016

出　　处：《焊接技术》2005年第1期36-37,40,共3页Welding Technology

基　　金：辽宁省科技基金项目(2001102028)

摘　　要：针对中厚板铝合金MIG焊电磁搅拌的特点和要求,结合脉宽调制(PWM)技术,研制出一套适用于铝合金MIG焊的逆变方波电磁搅拌电源PWM控制系统,该系统采用恒流闭环控制。试验结果表明,控制系统性能稳定、可靠,满足铝合金焊接磁搅拌加工需要。Based on the consideration of aluminium alloy mid-thick plate MIG welding electromagnetic stirring, a inverter square wave electromagnetic stirring power PWM control system was presented suitable to Al alloy MIG welding by using the technique of Pulse Width Modulation. The constant current closed-loop control was adopted. Experiment showed that the PWM control system can work steadily and reliably. It met the needs of aluminium alloy electromagnetic stirring process.

关 键 词：电磁搅拌 脉宽调制 逆变方波 控制系统 

分 类 号：TG115.27[金属学及工艺—物理冶金] TG439.9[金属学及工艺—金属学]