承压管道管座角焊缝相控阵超声检测  

Phased Array Ultrasonic Testing of Tube Socket Fillet Weld of Pressure Pipeline

作　　者：郭德瑞 GUO Derui(North China Electric Power Test and Research Instiute,China Datang Corporation Science and Technology General Research Institute,Beijing 100040,China)

机构地区：[1]中国大唐集团科学技术研究总院有限公司华北电力试验研究院,北京100040

出　　处：《无损探伤》2023年第1期26-30,35,共6页Nondestructive Testing Technology

摘　　要：采用相控阵检测技术对角焊缝内部缺陷进行检测,总结了管座结构形式和优缺点,理论分析了检测工艺参数的选取条件,提出了检测影响因素,并进行现场检测试验。结果表明,应根据管座结构形式和规格选择合适扇形扫查位置,检测聚焦位置应设置在最大检测深度处或稍远端位置。The structure form of pipe socket and the advantages and disadvantages are introduced, the selection conditions of the detection technology are analyzed theoretically and propose the influence factors of the detection, than do verified by practical application.The results show that the proper detection technology of phased array can be used to detect the internal defects of pipe socket fillet weld effectively.The results show that the appropriate position of S-scan should be selected according to the structure and specification of the tube socket, and the detection focus position should be set at the maximum detection depth or at a slightly distal position.

关 键 词：管座角焊缝 相控阵 工艺参数 聚焦法则 

分 类 号：TG115.28[金属学及工艺—物理冶金]