The main technical indexes are detected for foreign high-speed railway axle box bearings,such as chemical composition,non-metallic inclusion,microstructure and hardness,and compared with domestic bearings.%对国外高铁轴箱轴承原材料的化学成分、非金属夹杂、金相组织、硬度等主要技术指标进行了检测,并与国产轴承进行了分析对比.
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