摘要
介绍一种由 80C196KC单片机控制的IGBT逆变式脉冲TIG焊、连续TIG焊和MMA焊 3用机。单片机对焊接电流、电弧电压、电流给定、脉冲周期、占空比、基值电流、收弧电流衰减时间、前气和后气时间等焊接参数进行采样、计算和控制。给出了硬件结构框图和软件流程 。
A microprocessor based multi functional IGBT inverter for pulsed TIG, TIG and MMA welding is introduced in the paper. The welding current, arc voltage, preset current, the period and ratio of pulse, base current, down slope time, gas pre and post flow time are sampled , calculated and controlled by microprocessor. The scheme of system hardware and the diagram of software are given Methods of eliminating the interference to the least while the main circuit and control circuit have the common ground are put out.
出处
《电焊机》
2001年第6期24-27,共4页
Electric Welding Machine
