U71Mn钢轨闪光焊焊后火焰正火与感应正火接头性能对比
Effect of Flame Normalizing and Induction Normalizing on Properties of U71Mn Rail Joint After Flash Welding
宋宏图1, 李周玉2, 官有文2, 高振坤1
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作者单位：1.中国铁道科学研究院 金属及化学研究所, 北京 100081; 2. 中铁二十五局集团有限公司, 广东 广州 510600
中文关键字：U71Mn； 闪光焊； 感应正火； 火焰正火
英文关键字：U71Mn rail; flash welding; induction normalizing; flame normalizing
中文摘要：通过对U71Mn闪光焊经火焰正火和感应正火处理后的接头进行拉伸、冲击及硬度试验，对比两种正火方式对上述性能的影响。研究认为感应正火更有利于提高U71Mn钢轨闪光焊焊后接头性能。
英文摘要：The effects of normalizing way on the mechanical properties of U71Mn rail joint after flash welding were studied through tension, impact and hardness test. The results show that induction normalizing have more help to improve the property of weld joints than flame normalizing.