为解决手工电弧焊钳烫手和表皮导电安全性差的问题,我们研制了新型低发热焊钳。1 前言自人类发明焊接技术,造福于人类的同时,也给人类自己带来危害,焊钳在长时间使用后发热便是危害之一。经测试,目前市售焊钳在250A 条件下,长时间使用温度可达60℃以上,影响了焊工的正常工作,使焊工心情急燥,电弧不稳,易出现质量和安全事故,同时一般手工电焊钳导电部位外露,稍不注意会引起短路打弧, In order to solve the problem of the poor safety of the hand-held arc welding torch and the epidermis, we developed a new type of low-calorific welding clamp. 1 Foreword Since the invention of human welding technology for the benefit of mankind, but also to human harm themselves, the use of welding tongs after a fever is one of the hazards. After testing, currently available welding clamp in the 250A conditions, prolonged use of temperature up to 60 ℃ or more, affecting the normal work of the welder, so that welders moody, arc unstable, prone to quality and safety accidents, while the general manual Welding parts exposed conductive parts, a little careless will cause short circuit arc,