|关键词: 圆盘式结构转子支架 工地组焊 焊接变形
|The on-site welding technology of large disc-type rotor spider
Pan Feng, Liang Cheng， Jin Yonghong
|In order to reduce manufacturing costs and ensure dimensional accuracy which required by rotor spider after on-site welding for large split disc-type rotor spider, it is adopted pre-welding deformation preventive measures and methods of controlling deformation trend in welding process by means of analyzing welding deformation trend. This new technique has been applied in the on-site construction of large split disc-type rotor spider in Zhelin hydraulic power station. The results show that the process is effective and feasible, the dimensional accuracy meets the design requirements. Compared with traditional process, it reduces the cost and improves the efficiency which eliminates the post-weld machining. It provides manufacturing experience for the same type of rotor spider on-site welding in the future.
|Key words: disc-type spider frame on-site welding welding technology