为简便客观地评价带钢断面形状,特别提出了一种适合于供冷轧原料的带钢断面评价新方法,并基于金属塑性变形和辊系弹性变形等模型耦合建立起描述带钢断面形状的仿真系统,定量分析了初始辊形、轧辊磨损和热变形等因素对带钢断面形状的影响和断面形状评价方法的可行性。数学模型的可靠性得到了模拟计算和生产试验验证,从而为热轧带钢断面形状控制提供了重要的技术支持。研究结果表明,采用合理的初始辊形可以一定程度上弥补轧辊磨损和热变形对带钢断面的不良影响,大大优化了带钢断面形状。
To simply and objectively evaluate strip profile,a new way of profile evaluation was presented for original strip of cold-rolled production,and the simulation system of strip profile was established based on coupling the metal deformation model and rolls elastic deformation model etc.The influence of composite roller contour on strip profile and feasibility of profile evaluation way were quantitatively analyzed by numerical simulation,and the accuracy of mathematic model was verified by simulated calculation and production experiment,then provided the important technical support for controlling of hot-rolled strip profile.Research results show that bad strip profile caused by wear and thermal crown of roller may be properly repaired by sound original roller contour,and strip profile is greatly improved.
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