摘要
随着轧钢发展由高产化向高质化、绿色化、柔性化、稳定化、可控化的方向转变,成材率更高、能耗更低的直接轧制、连铸连轧等新工艺具有更广阔的应用前景。基于传热学原理、物理冶金理论,建立了高速棒材轧制过程温度演变模型及组织转变模型,开发了具有工艺参数灵活配置、计算结果多元展示、历史数据即时查询等特点的B/S架构高速棒材组织性能预报系统。本系统可对包含直接轧制、连铸连轧等新工艺在内的高速棒材轧制全工序温度场进行模拟,并预测成品的组织及性能。工业应用结果表明:轧制过程温度误差控制在±10℃,成品强度误差控制在±10 MPa、断后伸长率误差控制在±4%时,模型预测精度在90%及以上,各指标预测值与实测值有较好一致性。
With the development from high yield to high-quality,green,flexible,stable and controllable of steel rolling,new technologies such as direct rolling,continuous casting and continuous rolling with higher yield and lower energy consumption have broad application prospects.Based on heat transfer principles and physical metallurgy theory,the models for temperature change and microstructure evolution were studied.A B/S system for high-speed bar microstructure and mechanical properties prediction,with flexible configuration of process parameters,multiple output of calculation results and real-time query of historical data,was developed.This system can simulate the temperature fields of piece in the whole process,predict the finishing products microstructure and mechanical properties,during bar direct rolling and continuous casting and rolling.From the application in steel industry,when the temperature error of piece during rolling is within±10℃,the strength error of finishing products is within±10 MPa,and the elongation error is within±4%,the model prediction accuracy is 90%or above.The predicted values are in good agreement with the measured values.
作者
谭光耀
周民
池晨
马靳江
李和
TAN Guangyao;ZHOU Min;CHI Chen;MA Jinjiang;LI He(Metal Materials Research Division,CISDI Research&Development Co.,Ltd.,Chongqing 401122,China;Intelligent Design and Finite Element Research Division,CISDI Research&Development Co.,Ltd.,Chongqing 401122,China;Rolling and Equipment Business Dept.,CISDI Engineering Co.,Ltd.,Chongqing 401122,China)
出处
《轧钢》
2023年第6期51-57,共7页
Steel Rolling
基金
五矿科创基金项目(90150879)。
关键词
高速棒材
温度场
组织演变
力学性能
预报系统
high-speed bar
temperature field
microstructure evolution
mechanical property
prediction system
