核电站控制棒驱动机构驱动杆厚壁管材水浸超声检测

详细信息

Ultrasonic Immersion Testing of Thick Wall Tube Used as Control Poles in Nuclear Power Station Driving Machines

摘要: 驱动机构控制杆是核电站反应堆的关键部件之一。其质量要求高，原材料中如存在表面开裂等危险性缺陷，可能对反应堆的安全运行造成影响。驱动杆为管状结构，但壁厚/外径比达到了0.35，周向超声检测困难。笔者采用水浸超声检测方法，利用一次折射纵波和反射变型横波实现厚壁管材的全体积检测，提高了超声检测的灵敏度和信噪比。
- 驱动机构控制杆 /
- 厚壁管材 /
- 水浸超声检测 /
- 变型横波
Abstract: Control poles are an important part of nuclear power station and they require for high quality. It is difficult to detect the crack in control poles whose ratio of thickness to radius is 0.35. Aiming at this problem, the deformation shear and longitudinal wave with ultrasonic immersion testing method is used，and the results show that the whole thick tube can be detected with high signal-to-noise ratio.
- Control poles /
- Thick walled tube /
- Ultrasonic immersion testing /
- Deformation shear wave

[1]	都祥元,苏国跃.核电站控制棒驱动机构驱动杆用1Cr13厚壁管材成分选择与工艺优化［J］.金属学报，2011，47(9)：1155-1158.
[2]	车天泽,汪军.小径厚壁无缝钢管的超声波轴向接触法检测［J］.无损探伤，2012，36(4)：11-13.
[3]	朱思民,毕炳荣.重水堆核电站薄壁压力管的水浸超声检测技术［J］.无损检测，2005,3(5):20-23.
[4]	郑晖,林树青.超声检测［M］.北京：中国劳动社会保障出版社，2008.
[5]	马小怀,江立新,王海良.探头旋转式管材超声自动超声检测系统的研制［J］.中国有色金属学报，2010,1(4):40-43.
[6]	喻红根.管材超声水浸探伤干扰因素的分析［J］.无损检测，1994,3(4):12-15.