Abstract：The on-line solidification and heat transfer model for continuous casting was established by tracking elements method. The concept of virtual slab life was proposed for the first time in the model, and it has realized the calculation of real-time temperature field in the casting strand. The dynamic secondary cooling control model based on the on-line solidification and heat transfer model for continuous casting has been developed via the control algorithm of adaptive setting PID together with classical anti-windup. The application shows that the control model has strong disturbance rejection ability, and secondary cooling water rate could be well controlled. Under the control of the model, the secondary cooling water changed smoothly under the condition of unsteady casting, and in the range of normal casting speed the fluctuation of the surface temperature of strand was less than ±5℃. In addition, the error between calculating temperature and measured temperature can be controlled in 10℃. The quality of continuous casting products has been significantly improved after the application of the control method.
杨跃标 祭程. 连铸动态二冷控制模型的开发与应用[J]. 钢铁, 2010, 45(9): 48-48.
YANG Yue-Biao. Development and Application of Dynamic Secondary Cooling Control Model in Continuous Casting. Iron and Steel, 2010, 45(9): 48-48.
2010, Vol. 45 
