我校学生进行手弧焊实习时,电焊钳在使用过程中烫手的问题一直长期存在。由于我校焊机还不能达到每个学生一台,所以每台焊机都是几个学生共用。而学生实习,对焊接电流又吃不准,一天下来,焊钳特别烫手,既影响焊接的实习生产和焊件质量,也使焊钳寿命缩短。严重地影响教学效果和质量,为此,我们决定找出焊钳发热原因,并采取相应措施,使教学工作顺利进行。 My school students hand arc welding practice, the use of welding clamp in the process of hot issues have long existed. Because my school welder can not reach each student one, so each welder is shared by several students. The student internship, on the welding current and are not allowed to eat, one day, the welding torch particularly hot, both affect the quality of welding practice and welding quality, but also to shorten the life of welding clamp. Seriously affect the teaching effectiveness and quality, therefore, we decided to find out the reasons for the welding clamp fever, and take appropriate measures to make the teaching work smoothly.