二氧化碳焊接弧压智能控制器  

Arc Voltage Intelligent Controller of Carbon Dioxide Arc Welding Based on Evaluation of Short-Circuiting Transfer Process

作　　者：俞建荣[1] 史耀武[2] 蒋力培[1] 

机构地区：[1]北京石油化工学院机械工程系,北京102600 [2]西安交通大学机械工程学院

出　　处：《西安交通大学学报》2001年第11期1167-1170,1179,共5页Journal of Xi'an Jiaotong University

基　　金：北京市教委科技发展计划资助项目(0 1KJ0 73)

摘　　要：研制了基于短路过渡过程评价的二氧化碳弧焊电弧电压自寻优微机智能控制器 ,该智能控制器能根据焊接电流的设定值对电弧电压进行自寻优调节 ,使焊接参数达到最佳配合 .该控制器主要由弧压模糊控制模块与一元化推荐表组成 ,弧压模糊控制模块以二氧化碳弧焊过程中的熔滴短路过渡频率、燃弧时间与短路时间的比值 ,以及短路周期标准差等特征参数的综合值作为判据进行弧压寻优 .实验表明 ,此智能控制器能显著改善二氧化碳焊机的性能 。A microcomputer intelligent controller has been developed for self-optimizing of the arc voltage in carbon dioxide welding process. The controller can automatically adjust the arc voltage in accordance with the set welding current value. The major models in the controller consist of the arc voltage fuzzy control models and the one-knob recommending table. The arc voltage fuzzy control model takes the synthetic evaluation value of characteristic parameters in the welding process (the short-circuiting transfer frequency, the ratio of arc duration to short-circuiting duration, and the short-circuiting period standard deviation) as a basis to optimize the arc voltage. The test results show that the developed self-optimizing controller obviously improves the performance of carbon dioxide welding machine and reduces welding spatter.

关 键 词：二氧化碳弧焊 智能控制器 电弧电压 自寻优调节 

分 类 号：TG444.73[金属学及工艺—焊接]