针对已有等离子弧焊枪存在的缺点,研制了新型结构的直筒式等离子弧焊枪,并设计制作了配套使用的操作工具。结果表明:焊枪在钨极对中和内缩量调节、钨极和喷嘴冷却效果、气流流动效果、水气密封可靠性、喷嘴更换、钨极更换和利用率、通用性、焊接区可视性和可达性等方面有显著提高。 Aiming at the shortcomings of the existing plasma arc welding torch, a new type of straight plasma arc torch was developed, and the operation tools designed and manufactured were designed and manufactured. The results show that the welding torch has the advantages of tungsten pole centering and shrinkage adjustment, tungsten and nozzle cooling effect, airflow effect, water vapor seal reliability, nozzle replacement, tungsten replacement and utilization, versatility, weld zone visibility And reachability has been significantly improved.