摘要
残余应力是由钢轨生产过程中的预弯和矫直过程中的环境决定的,钢轨轨底不合理的残余应力可导致早期破坏,直接影响行车安全。为解决包钢U76CrRE稀土高强钢轨残余应力控制难点问题,结合钢轨生产实践,优化改进钢轨预弯、矫直工艺,达到降低轨底残余应力效果。
The residual stress is determined by different processes in the rail production or the using environment.The unreasonable residual stress at the rail bottom can lead to early damage and directly affect the service safety.In order to solve the difficult problem of residual stress control of U76CrRE rare earth high strength rail at Baotou Steel Group,combined with rail production practice,the rail pre-bending and straightening process were optimized and improved to reduce the residual stress at the rail bottom.
作者
白国君
杨吉春
梁文京
乌云达来
BAI Guojun;YANG Jichun;LIANG Wenjing;WU Yundalai(School of Materials and Metallurgy,Inner Mongolia University of Science and Technology,Baotou Inner Mongolia 014010,China;Baotou Iron and Steel Mining Co.,Ltd.,Baotou Inner Mongolia 014010,China;Key Laboratory of Rare Earth Steel Products R&D Enterprises of Inner Mongolia Autonomous Region,Baotou Inner Mongolia 014010,China;Rail Beam Rolling Mill,Baotou Steel Union Co.,Ltd.,Baotou Inner Mongolia 014010,China)
出处
《高速铁路新材料》
2022年第4期33-36,共4页
Advanced Materials of High Speed Railway
