如何有效克服焊钳发热现象胥广平（黑龙江省木兰县柳河镇中学１５１９４７）要想使焊钳不严重发热，就要从尽量减小接触电阻入手。首先，在连接焊把线时，应将线头掐去一段，剥出芯线，以表面光亮、不发黑、无氧化层为准，焊钳接线部分内壁也要相应做去氧化层处理，直到露... How to effectively overcome the phenomenon of welding clamp heating Xu Guangping (Mulan County, Heilongjiang Province Liuhe Middle School 151947) In order to make the welding clamp is not serious fever, we should start from minimizing the contact resistance. First of all, when connecting the welding wire, the wire should be pinched to a period of stripping the core wire to the surface light, non-black, oxide-free shall prevail, the inner wall of the welding wire should also be part of the wiring to the oxide layer, until dew...