摘要
在熔化极等离子弧焊接(plasma-MIG)试验系统基础上,设计电流、电压信号采集系统,对其电弧电特性信号进行采集,用虚拟仪器软件LabVIEW对其进行处理,得到U-t,I-t,U-I相图。比较了熔化极等离子弧焊与常规熔化极气体保护焊电弧电信号的不同,前者电流、电压波动很小,后者波动很大;研究了熔化极等离子弧焊接方法中MIG电流增大对电弧电信号的影响,并对熔化极等离子弧焊接的不稳定电弧电信号进行了分析,发现内弧对外弧的影响有一定规律性。
The arc electrical signals were collected the data acquisition system in the plasma-MIG welding process, and the U-t、I-t、U-I diagrams analyzed with the Labview software were obtained. The difference of arc characteristic between plasma-MIG arc and MIG arc was studied and the effect of increase of MIG current on the electric signals of the Plasma-MIG arc was analyzed. The unstable arc electrical signals of Plasma-MIG were gathered and the result indicates that some contacts exist between inner arc and outer arc.
出处
《焊接学报》
EI
CAS
CSCD
北大核心
2006年第8期59-62,共4页
Transactions of The China Welding Institution
基金
金属精密热加工国防科技重点实验室基金资助项目(03ZS6103)
