5m 厚板精轧机轧制力偏差问题仿真研究.pdfVIP

5m 厚板精轧机轧制力偏差问题仿真研究 ·1 · 5m 厚板精轧机轧制力偏差问题仿真研究 1 1 1 2 孙建亮 谷尚武 刘宏民 张志忠 （1. 燕山大学国家冷轧板带装备及工艺工程技术研究中心，河北秦皇岛 066004 ； 2. 宝山钢铁股份有限公司厚板厂，上海 201900 ） 摘 要 本文针对某厂5mCVC-Plus 厚板轧机两侧轧制力偏差过大的问题，首先对轧机的结构和控制特点进行分析， 初步确定产生轧制力偏差的原因；然后基于ANSYS/LS-DYNA 建立厚板轧制过程有限元模型，仿真模拟多种轧制 工况，模拟了不同非对称因素对轧制力偏差的影响，确定了影响轧制力偏差的主要因素是轧辊交叉、轧辊倾斜和非 对称弯辊；最后提出了轧制力偏差控制措施，即尽可能减小非对称量，控制轧机的非对称因素在合适范围内；定期 检修时严格控制辊系与牌坊的间隙和预埋量，控制效果良好。 关键词 轧制力偏差，厚板精轧机，非对称弯辊，辊系空间交叉 Simulation of Rolling Force Deviation of Heavy Plate Mill 1 1 1 2 Sun Jianliang , Gu Shangwu , Liu Hongmin , Zhang Zhizhong (1. National Engineering Research Center for Equipment and Technology of Cold Rolling Strip, Yanshan University, Qinhuangdao 066004, China; 2. Baoshan Iron Steel Company Limited Plate Mill, Shanghai 201900,China) Abstract According to the large rolling force deviation problem of 5m CVC-Plus plate mill, First, the structure and control characteristics of the rolling mill were analyzed, the causes of rolling force variation were preliminarily determined; Second, the finite element model for plate rolling process was made based on ANSYS/LS-DYNA, the influence of different asymmetric factors on the rolling force variation were simulated, the main factors affecting rolling force deviation are roll cross, roll tilt and asymmetric bending; Finally, the rolling force deviation control measures are put forward, that is, as far as possible, reducing the asymmetric, and controlling asymmetric factors of rolling mill in a suitable range; in the preventive maintenance, the clearance between the mill house and bearing chock and embedded parts should be controlled str