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采用数值模拟方法,以能量平衡和热传导方程为基础,通过分析加热炉内的传热过程,按照加热工艺要求,采用总括热吸收率法,建立了加热炉热工过程数学模型。并以普碳钢为实验钢种,合理设置测试点,完成了“黑匣子”实验,模拟结果与实验结果吻合较好。钢坯柱坐标下非稳态温度场的模拟是准确合理的,所建立的数学模型可以作为加热炉在线控制中钢坯温度场的动态实时跟踪计算和SCC决策的基础。
Based on the energy balance and heat conduction equation, the heat transfer process in the heating furnace was analyzed by numerical simulation. According to the requirements of the heating process, the mathematical model of the thermal process of the heating furnace was established by the method of the total heat absorption. And carbon steel as the experimental steel, reasonable set test points, completed “black box ” experiment, the simulation results and the experimental results are in good agreement. The simulation of unsteady temperature field under billet coordinates is accurate and reasonable. The established mathematical model can be used as the basis for dynamic real-time tracking calculation and SCC decision-making of the temperature field in the furnace on-line control.