精密CO_2激光焊机电源的研制  

A Study on Power Supply for Precise CO_2 Laser Welder

作　　者：唐霞辉[1] 段军[1] 朱国富[1] 杭世聪[1] 

机构地区：[1]华中理工大学激光研究院,武汉430074

出　　处：《电焊机》1997年第6期29-32,共4页Electric Welding Machine

摘　　要：为薄板焊接而专门研制的精密CO_2激光焊机，其电源采用带集成触发的三相晶闸管调压主电路，通过深度电流负反馈获得垂直陡降的电源外特性，由计算机对电源进行控制，实现激光功率输出的精密自动调节。A kind of precise CO_2 laser welder has been developed specially for welding of thin plates.The laser power supply employs three-phase SCR voltage-regulating main circuit with IC triggering circuit.Its V- I characteristic curve with perpendicularly steep drop is obtained through deep current negnectfeedback to the main circuit. circuit power output can be adjusted precisely and automatically throughcomputer-controlling to the power supply.

关 键 词：三相晶闸管调压 计算机控制 激光焊机 焊接电源 

分 类 号：TG439.4[金属学及工艺—焊接]