轨道车辆构件油漆起鼓脱落问题分析及检测方案研究

打开文本图片集

摘要：针对某型车辆运行过程中的油漆起鼓、脱落问题进行了研究。研究发现贯通性缺陷为主要诱因，分别通过压力气泡检测、无压液体渗漏检测、磁粉检测、相控阵超声波检测和涡流检测对贯通性缺陷进行了工艺试验研究。结果表明：压力气泡检测为最优检测方案。

关键词：油漆脱落；贯通性缺陷；压力气泡检测

Analysis and solution of paint swelling and peeling of railway rolling stock in service

PENG Yanhua

CRRC Zhuzhou Locomotive Co.， Ltd.， Zhuzhou 412001， Hunan， China

Abstract： The problem of paint swelling and peeling during the operation of a certain type of rolling stock was studied in this paper. It is found that penetration defect is the main cause. The penetration defects were studied by carrying out the experiments of pressure bubble testing， non-pressure liquid leakage testing， magnetic particle testing， phased array ultrasonic testing and eddy current testing. The results show that the pressure bubble testing is the optimal scheme.

Keywords： peeling of paint; penetrant defects; pressure bubble testing

1 序言

某型车辆在运行过程中发现不同程度的油漆起鼓、脱落现象，集中在侧墙与底架侧梁的结合部位，影响了车体整体美观。（剩余3883字）