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介绍了核电反应堆压力容器的基本结构,结合工程中某反应堆压力容器的不锈钢堆焊层在制造阶段缺陷漏检的案例,对比了役前检查与制造阶段对反应堆压力容器不锈钢堆焊层超声检验的异同点,分析了制造阶段缺陷漏检的原因,阐述了反应堆压力容器不锈钢堆焊层超声检验的局限性,对于如何避免该类焊缝缺陷漏检提出了观点。
Introduced the basic structure of nuclear reactor pressure vessel, combined with the case of a reactor pressure vessel stainless steel surfacing layer defects in the manufacturing phase missed case, compared the pre-service inspection and manufacturing phase of the reactor pressure vessel stainless steel surfacing layer ultrasonic inspection The similarities and differences were analyzed. The reasons for undetected defects during the manufacturing phase were analyzed. The limitations of the ultrasonic inspection of stainless steel overlay in reactor pressure vessel were expounded. A view was given on how to avoid such defects.