核电控制棒驱动机构和堆内构件零部件热处理标准和执行方法探究

Research on heat treatment standards and implementation methods of nuclearpower control rod driving mechanism and reactor internal components

针对核电控制棒驱动机构和堆内构件中零部件的热处理执行标准以及热处理工艺进行分析,结合相应的热处理生产经验,总结出控制棒驱动机构和堆内构件中零部件的热处理类型分为消除应力热处理(又称“尺寸稳定化热处理”)、改善材料性能热处理、退火处理(含光亮退火)、时效处理、局部热处理等,得到指导核电控制棒驱动机构和堆内构件零部件热处理的执行标准和常规热处理制度。

In terms of the heat treatment operating standards and heat treatment process for nuclear power control rod driving mechanism and reactor internal components,the analysis was conducted,in combination with heat treatment production experience.It is concluded that the types of heat treatment of control rod driving mechanism and reactor internal components are divided into stress relief heat treatment(i.e.“dimensional stabilizing heat treatment”),heat treatment for improving material properties,annealing(including bright annealing),aging,local heat treatment,achieving the operating standards and processes that guide heat treatment of nuclear power control rod driving mechanism and reactor internal parts(components).