棒线材热连轧过程综合数值模拟系统的开发及应用

来源期刊：冶金自动化2010年第5期

论文作者：姚俊 唐广波 刘正东 马宝国

文章页码：24 - 29

关键词：热轧； 棒线材； 组织演变； 数值模拟； 数据库

Key words：hot rolling； rod and bar； microstructure evolution； mathematical modeling； database

摘    要：为方便考察生产线布置、轧制工艺参数等对棒线材在热连轧生产过程中变形、温度和组织演变的影响,采用Fortran语言编写核心计算模块、SQL Server 2000开发数据库及数据库管理模块、VB语言编写人机交互界面,开发了棒线材热连轧过程综合数值模拟系统。利用开发的系统针对宝山钢铁股份有限公司特殊钢分公司棒材生产线生产GCr15轴承钢棒材的实际工艺参数进行了计算,计算值与现场测量值吻合较好,说明系统可以较准确地预测轧件在轧制过程中的温度场、轧制力、轧制力矩和平均奥氏体晶粒尺寸演变情况,可以为考察生产工艺对轧件组织的影响提供参考。

Abstract: An integrated process modeling system for continuous hot rod and bar mill is introduced in this paper.The system is designed and dedicated to analyzing the influences of mill configuration and processing parameters on deformation,temperature change and microstructure evolution of rolled rod and bar during multipass hot rolling.Fortran,SQL Server 2000 and Visual Basic are used as coding tools to develop the core computation modules,database and database management system,and user interface of the integrated modeling system respectively.Simulation test on GCr15 bearing steel bar has been conducted with the modeling system,which compares the calculated results against the practical data from the continuous hot rod and bar rolling mill of Special Steel Branch of Baoshan Iron & Steel Co.,Ltd.The comparative results on deformation in grooves,temperature change,roll force and roll torque,and Austenite grain size evolution show that the calculated values agree well with the measured data,indicating that the system has good modeling accuracy and is useful to analysis and prediction on process control of hot rod and bar rolling production.