SYNCROWAVE—300(S)弧焊电源低频方波交流输出的研究  

STUDY TO THE OUTPUT OF LOW FREQUENCY SQUARE WAVE AC CURRENT OF SYNCROWAVE- 300(S) POWER SOURCE

作　　者：郑兵[1] 李侠[1] 王其隆[1] 

机构地区：[1]哈尔滨工业大学

出　　处：《焊接》1997年第3期6-8,共3页Welding & Joining

摘　　要：本文通过对SYNCROWAVE-300(S)交直流两用电源主电路和控制电路的改造,成功地实现了将其50Hz的交流输出变为频率整数倍降低的低频方波交流输出,且工件为负的反极性时间也成整数倍减少.结果表明,改造后的方波交流电源的输出稳定,更适合于中厚板铝合金方波交流等离子弧焊.The reconstruction of both the main circuit and controlling circuit for SYNCROWAVE - 300(S) square wave power source used for DC or AC TIG welding was made to realize the decrease of both the reverse time and the 50 Hz AC frequency of the power source by integer times. Results show that the new power source is more suitable for plasma arc welding of aluminium alloys with the thickness of more than 5.0 mm.

关 键 词：铝合金 等离子弧焊 方波交流电源 

分 类 号：TG457.14[金属学及工艺—焊接] TG434.1