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车轴作为铁道车辆或机车走行部的重要部件,长期在重复或交变应力条件下使用,使用工况恶劣,其质量好坏与铁路运输安全密切相关。车轴在运行过程中如果发生断裂,将导致列车出轨、翻车、运输中断等严重事故,造成人民生命和国家财产的重大损失。因此,铁路部门对车轴材料的安全性极其重视,对车轴的材质、生产工艺、质量检验等方面的要求极高。
Axles as railway vehicles or locomotives of the important parts of the Department of long-term use of repeated or alternating stress conditions, the use of harsh conditions, its quality is closely related with railway transport safety. If the axle breaks during operation, it will lead to serious accidents such as train derailment, overturn and transportation interruption, which will cause great loss of people’s lives and state property. Therefore, the railway sector attaches great importance to the safety of the axle material, the axle of the material, production technology, quality inspection and other aspects of the extremely demanding.