叙述了研制我国首台用于钛电极焊接的定枪式双枪等离子焊箱所解决的技术难点。介绍了焊箱的结构、性能和特点。本焊箱的焊枪具有单独的强制水冷系统,焊接电流达500A,可实现电极自转,夹具公转,并有钢球浮动顶紧装置,使外形不规则的电极可实现连续环缝和纵缝的焊接。所研制的焊箱工作稳定可靠,技术性能均达到了罗马尼亚用户提出的设计指标。 Describes the development of China’s first titanium electrode for welding fixed-gun two-gun plasma welding box solves the technical difficulties. The structure, performance and features of the welding box are introduced. The welding torch has a separate forced water cooling system, welding current up to 500A, the electrode can be rotated, the fixture revolution, and a ball floating top tight device so that the irregular shape of the electrode can be continuous ring seam and longitudinal seam welding . The welding box developed by the work of stable and reliable, technical performance have reached the design of the Romanian users of indicators.