全自动超声波检测技术在管道对接环焊缝检测中的应用.pdf

NDT ( 葫芦岛市特种设备监督检验所,辽宁葫芦岛 125001) :介绍了全自动超声波检测技术在管道对 环焊缝检测中的应用采用全自动超声波 检测手动超声波检测以及射线检测方法对预制缺陷进行了检测通过金相解剖对比三种检测方 法的优劣, 发现全自动超声波检测技术的优势和发展潜力, 得出超声波衍射时差法结合超声脉冲反 射法可有效检测管道对 环焊缝缺陷 : 全自动超声波检测;手动超声波检测; 射线检测;超声波衍射时差法;预制缺陷 :TG115. 28 :A : 1000-6656( 2007)08-0472-05 Application of Automatic Ultrasonic Testing Technologyin the Inspection of Butt Girth Welds of Pipeline TIAN Guo-liang ( Huludao Special Equip ent Supervision and Inspection Institute, Huludao Liaoning 125001, China) Abstract: The application of auto atic ultrasonic testing for the inspection of butt girth welds of pipeline was introduced. Auto aticultrasonic testing, anual ultrasonic testing and radiographictesting techniques wereused on the inspection of e bedded defects. Co parisons between existing testing results showed that auto atic ultrasonic testing had great advantages and bright application future. Final conclusion was drawn that the co bination of both ti e of flight diffraction technique and pulse echo techniquewas effectivefor thebutt girth welds testing of pipeline. eywords: Auto atic ultrasonic testing; Manual ultrasonic testing; Radiographic testing; T i e of flight diffraction technique; E bedded defect 2006 IOEC , A B (AUT) ( TOFD) ; , X70 , 1 016 @ 21 , 11( ) , AUT( 1 MUT)( RT) [ 1,2] 1.1 ,AUT AUT 1. 1. 1 检测结果 , , AUTMUT ( ,; 2. 5 MHz, K = 2, 10