新型的点焊热膨胀电极位移法质量监控装置  

Spot Welding Quality Control System with Electrode Expansing Difference

作　　者：姜以宏[1] 曹彪[1] 叶广郁[1] 

机构地区：[1]哈尔滨工业大学,150006

出　　处：《电焊机》1992年第6期3-7,共5页Electric Welding Machine

摘　　要：本文详细介绍了所研制的点焊热膨胀电极位移法质量监控装置。该装置的信号检测系统分辩率高,可用于气缸滑动差的点焊机;所采用的控制方式充分考虑了热膨胀电极位移与点焊加热的相互关系,有效地克服了其它干扰因素对控制效果的影响,提高了控制精度。试验结果表明:在电网电压波动±10％、电极直径增大20％、分流或二次回路感抗变化时,采用该控制装置能有效地调整热输入,保证熔核尺寸稳定。Spot Welding quality control system with electrode expansing difference is introduced in this paper. There is high resolution system in this control system, which can be used in higher friction cylinder der spot welding machine. As the relation between electrod expansing difference and spot welding heat is a main control fact which is not influcnced by others, the control accuracy is high. The test express that the weld spot dimension is stable under this control system when mains voltage change ±1 0% , electrode dimen- sion increasing 20% and shunt current or secondey circuit resistance change.

关 键 词：电极位移 电阻焊 点焊机 质量控制 

分 类 号：TG438.2[金属学及工艺—焊接]