摘要伴随着冷连轧技术水平的不断提高,带钢轧制的高速化已成为现代化冷连轧机发展的趋势。高速冷轧过程中,单位时间内带钢的变形热、带钢与轧辊之间产生的摩擦热将大大增加,产品的质量受到影响。为了减小轧制产生热量对产品质量的影响,对于正确的认识冷轧带钢轧制过程的温度变化显得十分的重要。为解决轧件生产中的此类实际问题,本论文在理论分析的基础上,建立了冷轧带钢表面温度的计算模型,并以C#编程语言开发了一款能够准确预测带钢出口温度、机架间带钢温度分布的温度预测软件,以简便高效的完成轧件最终温度的预测,并且直观的显示出来,从而为现场轧件温度的预测提供了依据,也为后续的产品工艺参数的制定提供了可供参考。经过与现场实测温度的对比,软件预测精度能够满足工程的需要,具有较高的准确性。关键词: 冷轧;带钢温度;轧辊温度场;模拟7835
Abstract
With development of the cold rolling technology, the high-speed strip rolling has become the development trend of modern tandem cold mill. High-speed cold rolling process, the friction heat generated between the thermal deformation in unit time, steel strip and roll will be greatly increased, the quality of the products affected. In order to reduce the heat rolling impact on product quality, the cooling rolling imminent. In order to solve the practical problems during production, on the basis of theoretical analysis, calculation model of surface temperature of cold rolled strip, and in the C# programming language to develop an ability to accurately predict the strip outlet temperature, the strip temperature distribution of Windows platform based on temperature prediction software, to complete the final prediction of workpiece temperature simple and efficient, and intuitive display, which provides a basis for the prediction of the rolling temperature, also provides the best operation may supply the reference for the follow-up work product cooling. Through the comparison of the actual rolling temperature and field, prediction accuracy and reliability of the software is high.
KeyWords: cold rolling;the strip temperature;temperature field of roller;simulation
目 录
1 绪论 1
1.1 冷轧发展史 1
1.2 冷连轧机的发展 1
1.3 我国冷轧发展现状 2
1.4 冷轧产品特点 3
1.5 冷轧板带钢工艺流程及工艺特点 3
1.6 冷轧温度模型概述 3
2 冷轧温度模型的建立 4
2.1 布洛克假定 4
2.2 滑动摩擦模型简介 6
2.3 摩擦热的计算 7
2.3.1 摩擦力的分布 8
2.3.2 轧辊压扁半径 10
2.3.3 咬入角的计算 11
2.3.4 接触区长度计算 11
2.4 变形热模型 14
2.5 变形抗力的计算 16
2.6 轧制压力的计算 17
2.6.1 出口弹性变形区单位轧制压力的计算 17
2.6.2 入口弹性变形区单位轧制压力的计算 18
2.6.3 塑性变形区单位轧制压力的计算 19
2.6.4 总轧制压力P的计算 21
3 冷轧温度计算软件的开发 24
3.1 软件的功能概述 25
3.2 软件的界面设计 25
3.2.1 软件初始页面 25
3.2.2 用户输入界面 25
3.2.3 输出界面 26
3.2.4 菜单设计 27
3.3 开发平台 28
3.4 开发语言 29 冷轧板带钢温度模型研究+文献综述:http://www.youerw.com/cailiao/lunwen_5935.html