超声波检测技术在城铁地板上的应用研究  

Study on the Application of Ultrasonic Testing Technology on the Urban Railway Floor

作　　者：黄艳 林雨廷 高忠良 HUANG Yan;LIN Yuting;GAO Zhongliang(College of Innovation and Entrepreneurship Education,Changchun Institute of Technology,Changchun 130012,China;Engineering Technology Center of CRRC Changchun Railway Vehicles Co.,LTD.,Changchun 130062,China)

机构地区：[1]长春工程学院大学生创新创业教育学院,长春130012 [2]中车长春轨道客车股份有限公司工程技术中心,长春130062

出　　处：《长春工程学院学报（自然科学版）》2023年第4期47-51,共5页Journal of Changchun Institute of Technology：Natural Sciences Edition

摘　　要：城铁地板材料为钎焊铝合金蜂窝板,分析了地板钎焊接头超声波A扫描回波信号。利用数值仿真软件模拟了超声波信号在地板焊缝中的传播过程,分析了探头在焊件不同区域时,信号特征的变化情况,研究了铝合金蜂窝板地板钎焊接头状态与超声检测A扫描回波信号之间的关系。超声检测A扫描回波信号可以准确地反映出地板焊接的成型质量,能够表征钎焊接头内部的连接状态,可以用来评价城铁地板的连接质量。The material of the urban railway floor is brazed aluminum alloy honeycomb panel,and the ultrasonic A-scan echo signal of the brazed joint of the floor is analyzed.The propagation process of ultrasonic signals in floor welds is simulated by numerical simulation software,and the changes in signal characteristics of probes in different areas of the weld are analyzed.The relationship between the state of aluminum alloy honeycomb panel floor brazed joints and the A-scan echo signal of ultrasonic testing is studied.The A-scan echo signal of ultrasonic testing can accurately reflect the forming quality of floor welding,characterize the connection state inside the brazed joint,and can be used to evaluate the connection quality of the urban railway floor.

关 键 词：城铁地板 钎焊 超声波检测 

分 类 号：TG454[金属学及工艺—焊接] U270.6[机械工程—车辆工程]