U76CrRE钢轨残余应力控制工艺研究  

Study on Residual Stress Control Technology of U76CrRE Rail

作　　者：白国君[1,2,3] 杨吉春 梁文京[1,2] 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)

机构地区：[1]内蒙古科技大学材料与冶金学院,内蒙古包头014010 [2]包钢矿业有限责任公司,内蒙古包头014010 [3]内蒙古自治区稀土钢产品研发企业重点实验室,内蒙古包头014010 [4]包钢钢联股份有限责任公司轨梁轧钢厂,内蒙古包头014010

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

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.

关 键 词：U76CrRE稀土钢轨 预弯 矫直 

分 类 号：TG335.1[金属学及工艺—金属压力加工]