车辆冷切轴的原因分析及防范措施

Analysis on Causes of Cold Axle Cut on Railway Cars and Preventative Measures

结合实例分析了铁路车辆冷切轴的原因，并重点对车轴大裂纹漏探原因作了细致的分析，提出加强车轴超声波穿透检查、合理配置超声波探伤仪及尽快淘汰老Ｄ轴等防范措施。

In this paper,the causes of cold cut of axles on railway cars are analysed incorporating actual examples,and causes of missed detection of large cracks on axles are detailly analysed,and preventative measures are put forth,including reinforcement of supersonic penetration detection of axles,reasonable distribution of supersonic flaw detectors and eliminating old D axles as quickly as possible.