RPV筒体超声检测超标显示的分析  

Analysis of Excessive Displays Founded by Ultrasonic Examination on the Reactor Pressure Vessel

作　　者：齐敦杰 霍胜涛 郭亮 

机构地区：[1]中国核电工程有限公司,福清350300

出　　处：《无损检测》2017年第6期44-48,共5页Nondestructive Testing

摘　　要：某反应堆压力容器役前检查的超声检测过程中,发现三处超标显示。在对反应堆压力容器的超标显示信息进行分析的基础上,结合设备制造完工报告和安装阶段的检查报告分析了超标显示产生的可能时机;通过化学成分分析和对比试验验证了此超标显示产生的根本原因,即超标显示是由褐铁矿混凝土引起的。Three excessive displays were founded by ultrasonic examination on the reactor pressure vessel during pre-service inspection.In this paper,we analyzed the information of the three displays on the reactor pressure vessel.We also analyzed the possible generating time of the displays through combining manufacturing completion reports and the inspection reports of installation.Subsequently,the root cause of these displays was verified by the chemical composition analysis and comparative tests.This paper made the conclusion that these displays were caused by the limonite concrete.

关 键 词：役前检查 超声检验 超标显示 核安全 

分 类 号：TG115.28[金属学及工艺—物理冶金]