输水钢管对接焊缝超声波检测技术与质量控制

Ultrasonic Testing Technology and Quality Control for Butt Welds of Water Supply Steel Pipes

焊缝质量是钢管管道工程稳定运行的重要因素,直接影响到管道的承载能力、使用寿命和安全性。结合某引水钢管工程案例,通过分析对比五大无损检测技术的适用范围及优缺点等,最终选用检测效率高且对检测人员无伤害因素的超声波探伤技术;总结了焊缝检测前仪器设备及焊缝检测面的准备工作、超声波探伤的操作步骤、焊缝缺陷的判定及质量控制要点等,所取得的经验可为类似工程应用时借鉴。

The quality of welds is an important factor for the stable operation of steel pipe pipeline projects,which directly affects the bearing capacity,service life,and safety of the pipeline.Based on the case of water supply steel pipe,by analyzing and comparing the applicability,advantages and disadvantages of the five major non-destructive testing technologies,the ultrasonic testing technology with high detection efficiency and no harm to personnel is finally selected;At the same time,the preparation of instruments and equipment before welding seam detection,the preparation of welding seam detection surface,the operation steps of ultrasonic flaw detection,the determination of weld defects and key points of quality control were summarized,providing reference for similar engineering applications.