关于动车组车轴轮座不连续磁痕的分析研究  

Analytical on the Discontinuous Magnetic Traces of Axle Wheel Base of RollingStock

作　　者：薛清涛 Xue Qingtao(Zhiqi Railway Equipment Co.,Ltd.,Taiyuan Shanxi 030032)

机构地区：[1]智奇铁路设备有限公司,山西太原030032

出　　处：《机械管理开发》2022年第6期303-305,共3页Mechanical Management and Development

摘　　要：主要针对CRH380B拖车车轴轮座处不连续磁痕进行失效分析,查明车轴断裂的原因,有针对性地提出了应急补救措施,防止类似事故的再次发生,并从冶金、制造、运用和维修方面提出改进建议。为降低微动损伤风险,除了对轮对进行定期无损检测外,更为重要的是要改善轮对运行环境及检修措施,并严格按照高级检修规程执行。The failure analysis is mainly focused on the discontinuous magnetic marks at the wheel base of the CRH380B trailer axle,identifying the causes of axle fracture,proposing targeted emergency remedial measures to prevent the recurrence of similar accidents,and making improvement suggestions in terms of metallurgy,manufacturing,operation and maintenance.To reduce the risk of micro-motion damage,in addition to regular nondestructive testing of the wheelsets,it is more important to improve the wheelset operating environment and maintenance measures,and to strictly follow the advanced repair and maintenance procedures.

关 键 词：车轴 不连续磁痕 微动损伤 无损检测 

分 类 号：U270.3[机械工程—车辆工程]