【摘要】 提出了一种采用直流脉冲电流的埋弧焊工艺 ,研制开发了以单片机为核心的脉冲电流控制器。该控制器包括三种输出控制形式 ,并且可以采用数码管监视脉冲参数和控制器的运行状态。试验表明 ,分别改变脉冲频率、脉宽比、峰值电流和基值电流值可以得到不同的输出波形 ,其中电流波形变化比较大 ,电压波形变化比较小 ,从而证明了脉冲控制器对焊接电流的有效控制。更多还原

【Abstract】 It will introduce us a new SAW process by adopting DC pulse current.They design and develop pulse current controller as core of single plate machine.This controller comprises three output control forms,also adopts digital tube supervising pulse parameter and controller working condition.It is tested to prove separately alter pulse frequency,impulse duvelocityn velocity,peak value current and base value current to get different output forms,including which current form change much,but voltage form change small.All these prove that pulse controller make effective control on welding current.更多还原