中厚板超快速冷却多目标控制研究及应用  

Research and application of multi-objective control of ultra fast cooling for plate

作　　者：刘涛[1,2] 余伟[1,2] 李彦彬[1,2] 殷实[1,2] 何春雨[1,2] 

机构地区：[1]北京科技大学高效轧制国家工程研究中心,北京100083 [2]北京科技大学设计研究院有限公司,北京100083

出　　处：《冶金自动化》2015年第3期39-43,共5页Metallurgical Industry Automation

基　　金：国家科技支撑计划课题资助项目(2012BAF09B04);教育部新世纪优秀人才支持计划资助项目(NCET-10-0223)

摘　　要：传统的轧后控冷系统以温度作为主要控制目标,忽略了对冷却速率及冷却均匀性的控制,为此,作者开发了超快速冷却系统,实现了冷却路径及均匀冷却的多目标控制,即,通过优化数学模型算法及相应控制策略实现终冷温度及冷却速率精确控制,通过边部遮蔽、头尾遮蔽、辊道微加速及对称冷却等策略实现钢板横向、纵向及厚度方向的均匀冷却。超快冷系统在国内某钢铁公司应用后,终冷温度、冷却速率、冷却后温度均匀性及性能均匀性等指标均达到控制要求,应用效果良好。The cooling temperature is the main control target for the traditional cooling system,while the control of the cooling rate and the cooling uniformity is ignored. The ultra fast cooling system is developed in this paper to realize the multi-objective control of the cooling route and the uniform cool-ing. That is to say,mathematical models are optimized and the corresponding control strategies are de-veloped to achieve the accurate control of the final cooling temperature and the cooling rate,and the uniform cooling in plate width,length and thickness directions is achieved through strategies such as edge masking,head and tail masking, micro acceleration of the roll table, symmetrical cooling, etc. The ultra fast cooling system is applied in a certain domestic iron and steel corporation. The results show that the indices such as the final cooling temperature,the cooling rate,the temperature uniformi-ty after cooling, the performance uniformity, etc. meet the control requirements, and the application effect is good.

关 键 词：中厚板 超快速冷却 终冷温度 冷却速率 均匀冷却 

分 类 号：TG335[金属学及工艺—金属压力加工]