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故障例一:有三台同型号焊机引不出弧。分析与检修:这三台焊机在故障前一天均能正常焊接,为什么一夜间都不能引弧呢?此时查输入电源均正常。一般来说电气上不可能同时出一样的故障。因此,我从外部找原因,考虑到故障前几天连续阴雨,昨夜又下过大雨,故障可能是由天气造成的。打开引弧器,将放电尖端磨尖,并调好间隙,三台焊机引弧马上成功。故障原因是:本来引弧器的放电极已经变秃了,晴天时,空气干燥。刚能引弧,连续阴雨时,空气湿度大,破坏了引弧条件,造成引弧困难。故障例二:引弧器尖端放电只有嗒嗒声,放电无力,不能引弧焊接。检修:起初认为是引弧器有问题,取下磨尖
Failure Example 1: There are three sets of the same type of welding machine cited no arc. Analysis and Maintenance: The three welders in the day before failure can be normal welding, why can not the arc at night it? Check the input power at this time are normal. In general, it is not possible to have the same fault at the same time. Therefore, I look for reasons from the outside, taking into account the continuous rainy days before the fault and heavy rains last night, the fault may be caused by the weather. Open the arc starter, sharpening the tip of the discharge, and adjust the gap, three arc welding machine immediately success. The cause of the malfunction is that the discharge electrode of the original arc starter has become bald, and the air is dry in sunny days. Just can arc, continuous rainy, the air humidity, destroyed the arc conditions, resulting in arc difficult. Fault Example 2: Arc discharge tip discharge only click sound, discharge weakness, can not arc welding. Maintenance: Initially considered to be a problem with the arc starter, remove the sharpening