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为对磁放大器式硅整流焊接电源进行改造,减小引弧冲击,降低下限电流值,可在焊接主回路中并或串联电阻,或用简单的RC充放电电路作电流衰减控制,也有对电源本身作较大改动的。近年来,还有不少厂家采用控制箱与焊接电源配合使用。纵观这些方法,有的浪费电能,有的改造工作量大,有的虽能满足一些基本要求,但控制还欠精确,功能单一,与国外相比差距较大。为了满足航空工业的需要,我们研制了WSM型氩弧焊机控制箱,并于1987年通过部级鉴定。
In order to revamp the magnetic amplifier type silicon rectifier welding power supply, reduce the arc striking and reduce the lower limit current value, it can be used in the welding main circuit and in series resistance or with simple RC charging and discharging circuit for current attenuation control, Itself made major changes. In recent years, there are many manufacturers use the control box with the welding power supply. Throughout these methods, some of the waste of electricity, some of the heavy workload, although some can meet some basic requirements, but the control is still less accurate, single function, compared with the larger gap between foreign countries. In order to meet the needs of the aviation industry, we developed a WSM-type argon arc welding machine control box, and in 1987 through ministerial identification.