8Cr5MoV冷轧工作辊淬火过程中的组织演变模拟  

Simulation of microstructure evolution of 8Cr5MoV cold rolling work roll during quenching

作　　者：薛超 许延琛 朱元键 李亨[2] XUE Chao;XU yan-chen;ZHU yuan-jian;LI heng(Guangxi Jinglian Optoelectronic Materials Co.,Ltd.,Liuzhou,Guangxi 215123,China;An-hui Key Laboratory of Aeronautical Structural Parts Forming Manufacturing and Equipment,Hefei University of Technology,Hefei,Anhui 230041,China)

机构地区：[1]广西晶联光电材料有限责任公司,广西柳州215123 [2]合肥工业大学航空结构件成形制造与装备安徽省重点实验室,安徽合肥230041

出　　处：《模具工业》2022年第6期63-66,共4页Die & Mould Industry

基　　金：中央高校基本科研业务费专项资金资助项目(JZ2021HGTB0100、PA2020GDSK0076);安徽省博士后研究人员科研活动经费资助项目(2020A391)。

摘　　要：冷轧工作辊须满足表面硬、心部韧的性能要求,需通过热处理工艺调控金相组织实现,针对8Cr5MoV合金钢冷轧辊,通过热模拟试验获得材料的高温本构关系,结合DEFORM-3D软件对淬火工序进行模拟,探索冷轧工作辊的最优热处理工艺。研究结果表明:工作辊最优热处理工艺为初始温度500℃保温1 h,加热至930℃保温15 min,最后进行5 min的喷雾淬火处理。工作辊淬火处理后表层马氏体组织含量为99%,淬硬层深度在25 mm左右,工作辊心部区域保留了韧性较好的珠光体组织,该研究为实际生产提供了可靠的技术支持。The performance requirements of hard surface and toughness core of cold rolling work roll requires accurate heat treatment process to control the organization. For 8Cr5MoV alloy steel cold roll, the high temperature constitutive relationship of the material was obtained through thermal simulation experiment, and the quenching process was simulated with DEFORM-3D software to explore the optimal heat treatment process of cold rolling work roll. The results showed that the optimal heat treatment process of the work roll was to heat the initial temperature to 500 ℃ for 1h,then to 930 ℃ for 15 min, and finally to spray quenching for 5 min. After quenching, the surface martensite content of the work roll was 99%, the depth of hardened layer was about 25 mm, and the pearlite structure with good toughness was retained in the center area of the work roll. The research provided reliable technical data support for practical production.

关 键 词：8Cr5MoV合金钢 DEFORM-3D 冷轧工作辊 淬火 

分 类 号：TG335[金属学及工艺—金属压力加工] TG156.31