金属加工（热加工）Issue(1)：43-46,4.
核电站控制棒驱动机构Canopy焊缝组织和性能研究
Study on the microstructure and properties of canopy welds in control rod drive mechanisms of nuclear power plant
沈天阔 1黄文惠 2陈宝洪 2邵善家 2邹小平 1郭宝超 2孙广 3蒋恩 2卜佳炜 2施誉 2卫晓春2
作者信息
- 1. 中广核工程有限公司 广东深圳 518124
- 2. 上海第一机床厂有限公司 上海 200120
- 3. 深圳中广核工程设计有限公司 广东深圳 518000
- 折叠
摘要
Abstract
The special TIG welder was used to weld the Canopy weld of the control rod drive mechanism of nuclear power plant.The machined Y-ring was selected as the filling material for the to study the microstructure and properties of machined Y-ring welds.The results show that the Y-ring Canopy weld is machined by TIG welding and has good shape,moderate width and good metallurgical fusion with the base metal.The weld structure is mainly composed of plate or skeleton ferrite and fast solidifying columnar austenite.After 23.1MPa to 23.3MPa water pressure test,the surface of the Canopy weld has no leakage,no visible deformation.On the surface of the results,the weld hardness is about 210HV,and the weld hardness distribution is uniform.The research provides valuable experience for machining Y-ring for the lower Canopy welded joint of control rod drive mechanism in nuclear power plant.关键词
控制棒驱动机构/Canopy焊缝/TIG焊/焊接工艺Key words
control rod drive mechanism/Canopy weld/TIG welding/welding technology引用本文复制引用
沈天阔,黄文惠,陈宝洪,邵善家,邹小平,郭宝超,孙广,蒋恩,卜佳炜,施誉,卫晓春..核电站控制棒驱动机构Canopy焊缝组织和性能研究[J].金属加工（热加工）,2024,(1):43-46,4.
