相对二代核电产品而言, 三代核电主设备因具有复杂的产品结构, 对无损检测技术的要求存在一定的特殊性。通过介绍三代核电蒸汽发生器超声检测过程中的典型质量案例, 探讨超声检测技术在三代核电应用中的技术疑点, 以寻求符合三代核电无损检测标准的超声检测评定方案。

Compared with 2nd generation nuclear major equipment, the non-destructive technique for 3rd generation nuclear equipment has its uniqueness because of the complex structure of the latter. Through introduction of typical case studies of quality problem during ultrasonic test (UT) of steam generator, this paper reveals and analyzes the difficulties of UT technique during the 3rd generation equipment manufacturing, and searches for the UT methods and relevant solutions in manufacturing which is in compliance with the NDE standards of 3rd generation equipment manufacturing.