热轧全流程带钢温度场数值模拟  

Numerical simulation of plate temperature distribution during hot rolling

作　　者：沈丙振[1] 周进[1] 韩志强[1] 柳百成[1] 赵克文[2] 焦景民[2] 

机构地区：[1]清华大学机械工程系,北京100084 [2]四川攀枝花钢铁集团公司,攀枝花617062

出　　处：《清华大学学报（自然科学版）》2003年第5期601-604,共4页Journal of Tsinghua University(Science and Technology)

摘　　要：为精确预测轧件的温度场、优化轧制工艺和提高最终产品的质量水平,通过对钢坯的加热和轧件轧制过程传热关系的分析,采用有限差分法建立了热轧全流程各环节轧件三维温度场的数值计算模型。结合钢厂实际生产条件,利用该模型模拟了各环节轧件的温度场,并与实测结果进行了比较,验证了计算结果的准确性。研究表明,轧制速度和终轧厚度对轧件温度影响较大,压下率和轧辊温度对轧件温度有一定的影响,其他工艺因素的影响较小。The temperature distribution in the plate during hot rolling must be accurately predicted to optimize the hot rolling process and improve the quality of hot rolling products. A mathematical model using the finite difference method was developed to numerically simulate the threedimensional temperature distribution in the plate during every processing stage based on the analysis of the heat transfer during the process. The model prediction of the temperature field in the plate during production agreed well with experimentally measured temperatures during every processing stage. The results show that the rolling speed and product thickness have effect on the plate temperatures while the rolling temperature and reduction rate are less important, and the other process parameters have little effect.

关 键 词：热轧 温度场 数值模拟 有限差分法 钢坯 轧制速度 终轧厚度 

分 类 号：TG335.11[金属学及工艺—金属压力加工]