铜板带轧辊弹性变形对板形的影响分析
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摘要
从轧辊弹性变形的角度分析了轧辊的弹性挠度、轧辊辊间压扁、工作辊与轧件间压扁对板形的影响,采用影响函数法计算了不同弯辊力、不同带宽对铜板带轧制时轧辊的弹性挠度、辊间压扁以及工作辊压扁的影响。结果表明:弯辊力变化对支持辊的挠度影响不大,辊间压扁量随着弯辊力的增加而逐渐减小,弯辊力对工作辊的压扁量影响较小;铜板带宽度变化对在离轧制中心线较近处工作辊和支撑辊挠度变化都不大,随着距离轧制中心越远工作辊和支撑辊的挠度都明显增大,铜板带宽度对于辊间压扁量影响很大,铜板带宽度对工作辊压扁量影响较小。
The elastic deflection of roll,the flattening between rolls and the flattening between working roll and rolled piece are analyzed from the angle of the elastic deformation of roll. The influence of different roll bending force and different bandwidth on the elastic deflection of roll,the flattening between rolls and the flattening of working roll were calculated by Influence Function Method. The result shows that:The changing bending roll force has little effect on the deflection of the backup roll,the value of flattening between rolls decreases with the roll bending force increasing,and there is little effect of roll bending force on the flattening of working roll. The changing width of copper strip has little influence on the deflection of working roll and backup roll which is near the rolling center line,and the deflection increase significantly with the distance from the rolling center line increasing. The width of copper strip has marked influence on flattening between rolls,but has little influence on flattening of working roll.
The elastic deflection of roll,the flattening between rolls and the flattening between working roll and rolled piece are analyzed from the angle of the elastic deformation of roll. The influence of different roll bending force and different bandwidth on the elastic deflection of roll,the flattening between rolls and the flattening of working roll were calculated by Influence Function Method. The result shows that:The changing bending roll force has little effect on the deflection of the backup roll,the value of flattening between rolls decreases with the roll bending force increasing,and there is little effect of roll bending force on the flattening of working roll. The changing width of copper strip has little influence on the deflection of working roll and backup roll which is near the rolling center line,and the deflection increase significantly with the distance from the rolling center line increasing. The width of copper strip has marked influence on flattening between rolls,but has little influence on flattening of working roll.
引文
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[10]徐建忠,张凤琴,龚殿尧.四辊轧机轧辊弹性变形解析模块的开发[J].轧钢,2003(2):8-11.(Xu Jian-zhong,Zhang Feng-qin,Gong Dian-yao.Development of calculationmodule of rolls elasticity deformation in 4-h mill[J].Steel Rolling,2003(2):8-11.)
[11]刘晓波,袁光前,熊珍艳.冷轧铜板带斯通轧制力模型研究[J].机械设计与制造,2015(1):62-65.(Liu Xiao-bo,Yuan Guang-qian,Xiong Zhen-yan.Study on cold rolled copper strips rolling force model of stone[J].Machinery Design&Manufacture,2015(1):62-65.)
[2]兰利亚,秦光文.国内外铜板带的新技术进展[A].2007年中国铜加工技术与应用论坛文集[C].北京:中国有色金属加工工业协会,2007:323-333.(Lan Li-ya,Qin Guang-wen.The new technology development of copper strip at home and broad[A].China copper processing technology and Application Forum in 2007[C].Beijing:CNFA,2007:323-333.)
[3]龚寿鹏.铜板带材产品的现状及发展[J].上海有色金属,2011(3):140-143.(Gong Shou-peng.The status and development of copper strip products[J].Shanghai Nonferous Metals,2011(3):140-143.)
[4]王晓晨,杨荃.万能凸度轧机非对称板形调控特性与广义整体板形控制策略研究[J].机械工程学报,2012(4):58-65.(Wang Xiao-chen,Yang Quan.Research on asymmetric shape control character and generalized overall shape control strategy for universal crown mill[J].Journal of Mechanical Engineering,2012(4):58-65.)
[5]Shohet K N,Townsend N A.Roll bending methods of crown control in four-high plate mills[J].Journal of the Iron and Steel Institue,1968,206(11):1088-1098.
[6]王国栋,张树堂.轧辊弹性变形和板形理论的研究[J].钢铁研究总院学报,1983(3):461-470.(Wang Guodong,Zhang Shu-tang.Study on the theory of elastic rolls deformation and strip shape[J].Central Iron and Steel Research Institute Technical Bulletin,1983(3):461-470.)
[7]W.L.罗伯茨.冷连轧钢生产[M].北京:冶金工业出版社,1991.(W.L.Roberts.Cold Rolling Production[M].Beijing:Metallurgical Industry Press,1991.)
[8]Guo R M.Development of a mathematical model for strip thickness profile[J].Iron and Steel Engineer,1990,67(9):32-39.
[9]王国栋.板形控制和板形理论[M].北京:冶金工业出版社,1986.(Wang Guo-dong.Plate Shape Control and Shape Theory[M].Beijing:Metallurgical Industry Press,1986.)
[10]徐建忠,张凤琴,龚殿尧.四辊轧机轧辊弹性变形解析模块的开发[J].轧钢,2003(2):8-11.(Xu Jian-zhong,Zhang Feng-qin,Gong Dian-yao.Development of calculationmodule of rolls elasticity deformation in 4-h mill[J].Steel Rolling,2003(2):8-11.)
[11]刘晓波,袁光前,熊珍艳.冷轧铜板带斯通轧制力模型研究[J].机械设计与制造,2015(1):62-65.(Liu Xiao-bo,Yuan Guang-qian,Xiong Zhen-yan.Study on cold rolled copper strips rolling force model of stone[J].Machinery Design&Manufacture,2015(1):62-65.)