Skillfully using scrapped electric welding tongs

Welders know that the longer the use time of the welding tongs, the more serious the wear of the jaws. The spring on the welding tongs elongates, the elastic force decreases, and the gap between the jaws increases. Until the jaws cannot hold the welding electrode, the welding tongs are scrapped. In this case, the scrapped welding tongs are useless. However, there is a grounding wire during welding, and welders often worry about poor grounding, The welder shall be grounded directly with bare copper wire; Either a thin iron plate is connected to the copper wire, and then the thin iron plate is contacted with the weldment. The production practice has proved that the effects of the above two grounding methods are not ideal. The copper wire of the former grounding method is worn too fast and the working efficiency is low; The latter grounding method increases the resistance during welding, the grounding wire is easy to overheat and has poor conductivity. At this time, if we connect the scrapped welding pliers to the grounding wire, we can solve many problems of welders during operation. (the article goes to the industry academic news. If there is infringement, please inform the administrator to delete it.)