摘要
使用55MnCr钢棒生产了某规格直线导轨,研究了感应淬火前后的微观组织和硬度。冶金质量评价结果表明工业生产55MnCr钢具有较高洁净度和均匀度水平。导轨型材经表面感应淬火后,滚道位置淬硬层深度达2.5 mm以上,获得板条马氏体+细针状马氏体组织,满足设计要求。
One type of linear guideway was produced by using 55MnCr steel,and the microstructure and hardness before and after induction hardening were studied.The metallurgical quality evaluation results show that the industrial produced 55MnCr steel has a higher level of cleanliness and uniformity.After surface induction hardening,the depth of hardened layer at raceway position is more than 2.5 mm,the microstructure of lath martensite combined with acicular martensite is obtained,which meets the design requirement.
作者
那艳会
王存宇
冯桂萍
周吉贞
Na Yanhui;Wang Cunyu;Feng Guiping;Zhou Jizhen(Technical Center,General Technology Group Dalian Machine Tool Co.,Ltd.,Dalian Liaoning 116100,China;Research Institute of Special Steels,Iron and Steel Research Institute Co.,Ltd.,Beijing 100081,China;Technical Center,Fushun Special Steel Co.,Ltd.,Fushun Liaoning 610073,China;Functional Component Branch,General Technology Group Dalian Machine Tool Co.,Ltd.,Dalian Liaoning 116100,China)
出处
《金属热处理》
北大核心
2025年第8期76-79,共4页
Heat Treatment of Metals
基金
工信部重点项目(2023ZY02015)
中国钢研重点项目(集23T61320)。
关键词
直线导轨
55MnCr钢
感应淬火
组织
硬度
linear guideway
55MnCr steel
induction hardening
microstructure
hardness
