高速铁路钢轨现场焊接接头超声检测系统  

Ultrasonic Testing System for On-site Welded Joints of High-Speed Railway Rails

作　　者：范振中 肖良忠 涂占宽 倪峥嵘 FAN Zhen-zhong;XIAO Liang-zhong;TU Zhan-kuan;NI Zheng-rong(Metals and Chemistry Research Institute,China Academy of Railway Sciences Co.,Ltd.,Beijing 100081,China;Changhe Aircraft Industries Group Co.,Ltd.,Jiangxi Jingdezhen 333002,China)

机构地区：[1]中国铁道科学研究院集团有限公司金属及化学研究所,北京100081 [2]昌河飞机工业(集团)有限责任公司,江西景德镇333002

出　　处：《失效分析与预防》2024年第5期311-318,共8页Failure Analysis and Prevention

基　　金：中国铁道科学研究院集团有限公司科研开发基金项目(2022YJ203)。

摘　　要：为进一步提升钢轨现场焊接接头超声检测系统的检测覆盖能力和缺陷显示能力,研制了多种探头扫查和缺陷显示模式的高速铁路钢轨超声检测系统。通过利用单探头扫查、串列式扫查和K型扫查模式相结合的扫查架系统进行检测,改善以往串列式扫查钢轨因检测覆盖区域有限出现漏检的问题;开发了具有B型、D型和C型视图显示的系统软件,从正面、侧面和俯视面3个方位显示缺陷的信息。采用该检测系统进行测量的结果表明:该超声检测系统具备10 km/h扫查速度,位移精度达到2 mm;面积型缺陷定量误差小于1 mm,缺陷位置的定位误差小于2 mm。该系统实现了钢轨焊缝中面积型缺陷高精度定量和定位检测。To further enhance the detection coverage ability and defect visualization ability of the ultrasonic inspection system for on-site rail welded joints,a high-speed railway rail ultrasonic test system with multiple probe scanning mode and defect display mode has been proposed in this work.The scanning system combines the single probe scanning mode,tandem scanning mode and K-type scanning mode,addressing the problem of missing detection caused by insufficient coverage area of rail detection.The system software with B-type,D-type and C-type view displays was developed to present the defect information from the front,side and top-down perspectives,realizing the high-precision location and quantification of area defects within rail welds.Utilizing this detection system,the results show that the proposed system can achieve a scanning speed of 10 km/h with a scanning accuracy of 2 mm.The quantitative error of area type defect is less than 1 mm,and the location error is less than 2mm.Consequently,the proposed system has successfully achieved high-precision quantification and location of area-type defects in rail welds.

关 键 词：高速铁路 焊缝 超声检测 无损检测 

分 类 号：TG115.28[金属学及工艺—物理冶金]