反应堆压力容器接管与筒体焊缝缺陷处理

Defects Treatment for Welding Seam between Nozzle and Shell of Reactor Pressure Vessel

介绍某核电厂反应堆压力容器(RPV)接管与筒体焊缝役前检查时发现的超标缺陷的处理过程与结果,结合制造工艺对缺陷的产生和出厂前漏检原因进行分析,研究适用技术规范并参考工程实际经验制定缺陷处理方案,并且提出同类焊接结构的制造与检验方案的改进建议。

This paper introduces treatment procedure and result when unacceptable defects are found during pre-service inspection, analyze the generation of defects and undetected reason before exworks inspection combined with manufacturing process, research applicable technical specification and prepare defects treatment plan according to engineering practical experience, provides improvement suggestion on manufacturing and inspection plan for same type welding structure part.