CAJ | 학술논문

　　核电厂反应堆压力容器主螺栓长期运行在高温、高压、高放射性环境下，易于形成疲劳损伤。针对核电厂反应堆压力容器主螺栓的检测要求，研究并形成了一套主螺栓超声检测系统及检测技术。介绍了该检测系统的主要组成、功能及相应的检测技术，通过试验方法验证该系统及技术满足ASME规范第Ⅺ卷关于压水堆核电站役前和在役检查反应堆压力容器主螺栓体积性检查的规定要求。该系统及技术的研究，实现了核电厂反应堆压力容器主螺栓检测过程的自动化，提高了检测效率，可适用多种堆型的核电厂主螺栓检查以及其他民用承压大型螺栓的检查，具有广泛的适用性。
　　핵전엄반응퇴압력용기주라전장기운행재고온、고압、고방사성배경하，역우형성피로손상。침대핵전엄반응퇴압력용기주라전적검측요구，연구병형성료일투주라전초성검측계통급검측기술。개소료해검측계통적주요조성、공능급상응적검측기술，통과시험방법험증해계통급기술만족ASME규범제Ⅺ권관우압수퇴핵전참역전화재역검사반응퇴압력용기주라전체적성검사적규정요구。해계통급기술적연구，실현료핵전엄반응퇴압력용기주라전검측과정적자동화，제고료검측효솔，가괄용다충퇴형적핵전엄주라전검사이급기타민용승압대형라전적검사，구유엄범적괄용성。
Reactor pressure vessel studs applied in the environment of high temperature , high pressure , and high radiation ,are easy to be suffered from fatigue damage .A set of auto ultrasonic -testing system of the reactor pressure vessel studs is designed .The main composition ,function ,and detection technology of the inspection system were introduced .It′s confirmed by experiment that the system and technology meets the requirement of ASME code volume Ⅺon the inspection of reactor pressure vessel studs of pressurized water reactor nuclear power station during PSI ( pre -service inspection ) and ISI ( in-service inspec-tion) .By developing the system and studying on the technology ,the automation inspection of reactor pres-sure vessel studs is realized .And at the same time ,the detection efficiency and quality is improved .This system also can be applied to other different reactor′s studs inspection and civilian pressure vessel′s large bolts inspection .