论文部分内容阅读
以相同的冷却强度、拉速、浇注温度、钢种等板坯连铸条件为模拟初始参数,采用相同的凝固潜热处理方式,针对两种常用的板坯连铸二冷边界条件处理方法FCA法和MCA法,分别采用四种不同的传热经验公式,计算了板坯连铸的热过程。得到这两种处理方式四种不同二冷传热经验公式的八组计算结果,并将计算结果与实测值相比较,结果证明,采用FCA法处理边界条件,得到的模拟计算结果与实测值相对误差均小于5%,而利用MCA法处理边界条件,得到的模拟计算结果与实际测量值相对误差在8%左右。因此,采用FCA法处理板坯连铸二冷边界条件得到的模型能更加准确地模拟板坯连铸的热过程。
With the same cooling strength, casting speed, pouring temperature and steel slab continuous casting conditions as the initial parameters of the simulation, the same method of latent heat treatment for solidification, two commonly used slab continuous casting two cold boundary treatment method FCA And MCA method, four different heat transfer empirical formulas were respectively used to calculate the thermal history of slab continuous casting. The results of eight groups of four different empirical formulas of two cooling and heat transfer of the two treatment methods were obtained and the results were compared with the measured values. The results show that the simulation results obtained by FCA method are compared with the measured values The errors are all less than 5%, while the MCA method is used to deal with the boundary conditions. The relative error between the simulation results and the actual measured values is about 8%. Therefore, the model obtained by using the FCA method to deal with the secondary cooling boundary conditions of slab continuous casting can simulate the thermal process of slab continuous casting more accurately.