入口楔形对中厚板侧弯影响规律

Research on Regularity of the Effect of Incoming Wedge on Lateral Curvature of Plate

为了研究轧件入口楔形对中厚板侧弯的影响规律,提高侧弯控制精度与效率,针对国内某中板厂精轧机组四辊轧机的生产实际情况,采用基于双悬臂梁的影响函数法开发了不对称条件下辊系辊弹性变形计算模块,阐述了该模块的离散化方法、关键数学模型及向量与矩阵的确定以及轧辊弹性变形的求解方法.基于现场实际数据进行入口楔形不对称条件下的模拟计算,得出了入口轧件楔形对出口轧件弯曲半径的影响规律,指出轧辊刚性倾斜是控制侧弯的有效手段,并建立了来料存在楔形时的目标楔形量计算模型及侧弯控制模型.

The calculation module of influence coefficient method under asymmetrical condition was developed based on the dual cantilever theory to research the regularity of the effect of incoming wedge on lateral curvature of plate,as well as enhance the control efficiency and accuracy of lateral curvature for a domestic plate rolling 4-high mill.The roll and work piece discretizing method, the decision of key mathematic model,vectors and arrays were described.Using the calculation module,the calculation was carried out based on actual data in-site.The regularity of effect on radius of curvature was obtained,the rigid titling of rolls is indicated to be effective method to control lateral curvature.The mathematic models of target wedge and curvature control when the incoming plate is wedge-shaped were also built.