论文部分内容阅读
闪光对焊法,是在对接工件之间稍留间隙,在其间加上电压并慢慢靠近使之发生闪光,对接的端部加热到适当的温度后,以极大的加速度对碰(即顶煅)的焊接方法。它具有与焊件的尺寸无关,及能在短时间焊合的特点。过去,这种闪光对焊采用的是单相交流电压(正弦波)电源,但是对于正弦波来说,由于电压随时都在不断变化着,所以当电压趋于零电位时有不发生闪光的缺点。
Flash butt welding method, the gap between the docking pieces in a slight gap between the voltage in the meantime and slowly close to make it flash, butt the end heated to the appropriate temperature, with great acceleration on the touch (ie, the top Calcination) welding method. It has the size and weldment has nothing to do, and can be welded in a short time characteristics. In the past, this flash butt welding using a single-phase AC voltage (sine wave) power supply, but for the sine wave, because the voltage is constantly changing, so when the voltage tends to zero the shortcomings flash does not occur .