涡流检测技术在检修构架中的应用研究  

Application of eddy current testing techniques to the maintenance of bogie frames

作　　者：彭艳华 PENG Yanhua(CRRC Zhuzhou Locomotive Co.,Ltd.,Zhuzhou,Hunan 412001,China)

机构地区：[1]中车株洲电力机车有限公司,湖南株洲412001

出　　处：《轨道交通材料》2025年第2期55-59,共5页Materials for Rail Transportation System

摘　　要：针对轨道交通车辆构架脱漆磁粉检测后上漆的检测过程无法满足检修的要求,设计了不同的构架焊缝试块,加工了不同的人工缺陷,通过开展涡流检测试验,研究了包括构架焊缝表面油漆厚度、人工裂纹分布位置、缺陷类型、人工裂纹长度和人工裂纹深度等因素的影响,最终总结出适用于检修构架焊缝的涡流检测工艺,通过实际检修构架检测应用表明,涡流检测能够有效检测出检修构架上的缺陷。The bogie frame of rail transit vehicles needs a depainting operation before applying magnetic particle testing,and then should be repainted after the testing.This process cannot meet the requirements of maintenance.Therefore,different frame weld test pieces are designed,and different artificial defects are machined.By way of conducting eddy current testing experiments,the influence of the paint thickness on the frame welds,position of artificial cracks,defect types,length and depth of artificial cracks is studied.Fi⁃nally,this paper summarizes an eddy current testing process suitable for repairing bogie frame welds.Actual frame testing shows that the eddy current testing can effectively detect defects on bogie frames.

关 键 词：涡流检测 焊缝 构架 检修 

分 类 号：U270.33[机械工程—车辆工程] U270.7[交通运输工程—载运工具运用工程]