摘要
铁道车辆车轴在货车重载或客车快速运行的环境下工作,车轴承载的重量以及车辆快速运行很容易产生破损、变形,一旦故障车轴继续使用将会使铁道车辆安全运行存在安全隐患或丧失使用功能,从而影响铁路运输的安全。为了弥补电磁超声检测对近表面缺陷检测和涡流检测对内部缺陷的检测盲区,设计了电磁超声和涡流检测的复合式检测探头,电磁超声和涡流检测技术都是以电磁感应原理对金属试件进行检测,电磁超声和涡流检测技术有很好的互补性,该复合检测探头能快速检测出试件缺陷,探头对内部缺陷能够准确定位,有效的检测出车轴的缺陷,为铁道车辆车轴的安全工作提供有利保障。
When the axles of railway vehicles work under the environment of heavy load of freight cars or rapid operation of passenger cars, the weight carried of the axle and the rapid movement of vehicles are easy to be damaged and deformed. Once the faulty axle continues to be used, there will be safety risks or loss of use function of railway vehicles, which will affect the safety of railway transportation.In order to make up for the blind area of electromagnetic ultrasonic testing for near surface defects and Eddy current testing for internal defects, a composite detection probe of electromagnetic ultrasonic and eddy current testing is designed. Electromagnetic ultrasonic and eddy current testing technology detects metal specimens based on the principle of electromagnetic induction. The composite detection probe can quickly detect the defects of the test piece, the probe can accurately locate the internal defects, and effectively detect the defects of the axles to provide a favorable guarantee for the safe work of the railway vehicle axles.
作者
刘志运
江泽华
Liu Zhiyun;Jiang Zehua(Locomotive and Rolling Stock College,Guangzhou Railway Polytechnic,Guangzhou Guangdong 510430;School of Rail Transportation,Wuyi University,Jiangmen Guangdong 529020)
出处
《中国仪器仪表》
2022年第3期73-77,共5页
China Instrumentation
基金
广州市教育局高校青年人才科研项目(202032791)。
关键词
铁道车辆车轴
电磁超声
涡流
复合检测方法
Railway vehicle axle
Electromagnetic ultrasonic
Eddy current
Composite detection method
