摘要
综述了百米U75V钢轨在线热处理工艺的方法、特点及研究进展。介绍了热处理冷却工艺参数以及喷风工艺参数对百米热处理U75V钢轨的生产效率、组织成分和力学性能等方面的影响特性。提出了百米珠光体型钢轨热处理工艺未来重点研究方向的建议:以缩短钢轨所需热处理冷却时间为目标,综合研究冷却工艺参数对其组织形貌和力学性能的影响规律,并对其进行优化;进一步缩小合金成分含量的允许波动范围,将有利于结合热处理工艺的优化而进一步提升U75V钢轨的性能;研制兼具换热能力和换热均匀性的喷嘴或喷风工艺方法,将有利于促进钢轨热处理工艺的优化和钢轨性能的提高。
Methods,characteristics and research progress of on⁃line heat treatment process for U75V steel rail with 100⁃meter length were summarized.Effects of heat treatment cooling process parameters and spray cooling process parameters on the production efficiency,microstructure and mechanical properties of the heat treated U75V steel rail with 100⁃meter length were introduced.Suggestions for future research on the heat treatment process of pearlite rail with 100⁃meter length were proposed.It is meaningful to study the effect of cooling process parameters on the microstructure and mechanical properties of the steel rails,with the goal of shortening the required heat treatment cooling time,and optimize them.Reducing the allowable fluctuation range of alloy composition content is beneficial for improving the properties of the U75V steel rail in combination with the optimization of heat treatment process.A nozzle or air spraying process that combines heat transfer capability and uniformity is beneficial for optimizing the heat treatment process of the steel rails and improving their properties.
作者
张惠泽英
高明昕
宋华
汪洋
杨建
Zhanghui Zeying;Gao Mingxin;Song Hua;Wang Yang;Yang Jian(School of Mechanical Engineering and Automation,University of Science and Technology Liaoning,Anshan Liaoning 114051,China;School of Innovation and Entrepreneurships,University of Science and Technology Liaoning,Anshan Liaoning 114051,China)
出处
《金属热处理》
CAS
CSCD
北大核心
2024年第6期270-276,共7页
Heat Treatment of Metals
基金
辽宁省教育厅高校基本科研项目-面上项目(JYTMS20230951)。
关键词
百米U75V钢轨
在线热处理
冷却工艺
力学性能
研究进展
U75V steel rail with 100⁃meter length
on⁃line heat treatment
cooling process
mechanical properties
research progress
