去年北京举办的英国工业展览会中,英国BOC公司展出了定型产品“SPR”-300熔化极气体保护脉冲焊机.它采用固定的频率,对于一定直径的焊丝,首先选定脉冲电压峰值,这个脉冲电压峰值的大小比刚刚能产生射流过渡的电压值稍高一点,焊工以后不必再调脉冲电压,为了适合板的厚度及焊接位置等需要,而改变焊接电流时,在这里就只需调节维弧电 Last year at the British Industrial Exhibition held in Beijing, BOC exhibited a stereotyped product “SPR” - 300 melt electrode gas pulse welder, which uses a fixed frequency, for a certain diameter wire, first select the pulse voltage Peak, the size of the peak value of this impulse voltage is slightly higher than the voltage value at which the jet flow can just be generated. After the welder does not need to re-adjust the pulse voltage, in order to adapt to the thickness of the board and the welding position, the welding current is changed Need to adjust the dimension arc