大截面工件闪光对焊工艺分析及控制系统  

Flash butt welding of large workpieces with industral computer control

作　　者：王克争[1] 唐青 刘文焕[1] 何方殿[1] 

机构地区：[1]清华大学机械工程系 [2]清华大学清华科技园发展中心,北京100084

出　　处：《清华大学学报（自然科学版）》2002年第2期143-146,共4页Journal of Tsinghua University(Science and Technology)

摘　　要：针对大截面工件的闪光对焊工艺特点 ,确定了预热闪光焊的焊接工艺。通过工控机闭环控制液压比例阀的运动 ,使工件按照预定的闪光位移曲线加速送进 ,保证了闪光过程的强烈和稳定。编制了系统控制软件 ,它集焊接过程控制与生产管理于一体 ,具有控制焊接过程转换、故障诊断与处理、参数显示及统计产量等功能。焊接接头性能试验结果表明The welding technology used for preheating flash butt welding was evaluated for workpieces with large welding section. The movement of the hydraulic proportion valve was controlled by a closed loop industral computer with the workpiece accelerated according to the predetermined flashing moving curve, so that the flashing process was violent but stabile. Both of the welding process control and the production management were integrated into the software control system. The system has many functions, such as transformation of the serial welding process, diagnosis and treatment of failures, parameter display and product number count, etc. The workpiece properties show that the welding system can be used to effectively flash butt welding large workpieces.

关 键 词：闪光对焊 工控机 液压比例阀 系统控制软件 接头性能 大截面工件 焊接工艺 

分 类 号：TG456.9[金属学及工艺—焊接]