二十辊轧机支撑辊组变形及板形调控分析

doi:10.13228/j.boyuan.issn0449-749x.20210291

Abstract
Figure/Table
References
Related Citation (15)

Download: PDF (4816 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract The capacity and quality of sheet and strip is a momentous mark of the industrial development level, especially the copper strip. SUNDWIG 20-high mill is the key equipment for cold rolling of copper sheet and strip. The bending deformation of its outermost A and D support axle group is one of the most important means to affect the flatness. The change of the saddle displacement can bend the core shaft of the support axles, the deformation will be reflected on the support roller and transferred to the intermediate rolls and the work roll in turn, and ultimately affect the plate thickness and flatness. The traditional calculation method of support axle group deformation such as hypothetical broken line method and statically indeterminate beam method which considers the support axle and support roller as a whole, but the influence of the deformation between them on the support axle group deformation deformation is ignored. The bending deformation of each section of the support roller based on the finite element method was simulated and fitted to obtain the bending deformation of the whole support axle group,and then evaluated the influence of the deformation on the plate flatness with the flatness prediction model based on the elastic deformation model of roll system and the metal plastic deformation model. The results show that the thickness and flatness distribution doesn′t change locally but in the total width direction after applying different displacement combinations to four saddles in the upper roll system. Four saddles have different adjustment effects on shape and thickness. With the same displacement applied, the influence of the middle saddle on the flatness and thickness is greater than that of the side saddle. In addition,even if symmetrical saddle shift are applied in the saddle of the upper roll system,the influence on the thickness and flatness is asymmetric.

Key words： 20 high-mill copper sheet and strip support axle group bending deformation flatness finite element method

Received: 13 May 2021

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	SUN Jian-liang
	YAN Ming-ze
	LI Ming-yuan
	HAO Tong-tong

Cite this article:

SUN Jian-liang,YAN Ming-ze,LI Ming-yuan等. Analysis on flatness about support axle group deformation in 20-high mill[J]. Iron and Steel, 2021, 56(12): 85-95.

URL:

http://www.chinamet.cn/Jweb_gt/EN/10.13228/j.boyuan.issn0449-749x.20210291 OR http://www.chinamet.cn/Jweb_gt/EN/Y2021/V56/I12/85

[1] 郭方方,王成勇,戴程. 铜合金板带材轧制技术现状与发展趋势[J]. 热加工工艺,2016,45(19):10.(GUO Fang-fang,WANG Cheng-yong,DAI Cheng. Current status and development trend of rolling technology of copper alloy plate and strip[J]. Hot Working Technology,2016,45(19):10.)
[2] 苑和锋. 中国铜板带市场现状及发展趋势研究[J]. 世界有色金属,2017(1):117.(YUAN He-feng. China′s copper belt market present situation and development trend of research[J]. World Nonferrous Metals,2017(1):117.)
[3] 刘宇宁,王云鹏,祝儒飞,等. 耐磨铜合金的研究现状与发展趋势[J]. 机械工程材料,2021,45(1):1.(LIU Yu-ning,WANG Yun-peng,ZHU Ru-fei,et al. Research status and development trend of wear-resistant copper alloy[J]. Materials for Mechanical Engineering,2021,45(1):1.)
[4] 姜东友. 二十辊森吉米尔轧机板形控制方法[J]. 中国冶金,2019,29(6):65.(JIANG Dong-you. Shape control method for 20-roll Sendzimir mill[J]. China Metallurgy,2019,29(6):65.)
[5] 王崇涛,方康玲. 森吉米尔轧机的板形控制[J]. 轧钢,2005,22(4):14.(WANG Chong-tao,FANG Kang-ling. Shape control on Sendzimir mill[J]. Steel Rolling,2005,22(4):14.)
[6] 郭泽宇. 新型二十辊轧机板形调控模拟分析[D]. 秦皇岛:燕山大学,2017.(GUO Ze-yu. Simulation Analysis of Plate Profile Control of the New-Type Twenty-High Rolling Mill[D]. Qinhuangdao:Yanshan University,2017.)
[7] 李威,晁春雷,刘云飞. 多辊轧机多段支承辊计算模型和校核[J]. 重型机械,2017(5):79.(LI Wei,CHAO Chun-lei,LIU Yun-fei. Mathematical calculation model and check of multi-roll mill split roller[J]. Heavy Machinery,2017(5):79.)
[8] 石坤,杭建华,郑岗,等. 二十辊轧机轧制过程有限元分析[J]. 轧钢,2019,36(6):38.(SHI Kun,HANG Jian-hua,ZHENG Gang,et,al. Finite element analysis of rolling process of Sendzimir mill[J]. Steel Rolling,2019,36(6):38.)
[9] 宋涛涛. 森吉米尔二十辊轧机主体三维设计及有限元分析[D]. 秦皇岛:燕山大学,2010.(SONG Tao-tao. Three-Dimensional Design and Finite Element Analysis of the Sendzimir Twenty-High Rolling Mill[D]. Qinhuangdao:Yanshan University,2010.)
[10] 肖腾. 森吉米尔轧机AS-U凸度调整与背衬轴承的承载能力研究[D]. 武汉:武汉科技大学,2016.(XIAO Teng. Research on AS-U Crown Adjustment and Load Capacity of Bearing in Sendzimir Mill[D]. Wuhan:Wuhan University of Science and Technology,2016.)
[11] 周冠禹,何安瑞,刘超,等. 20辊轧机轧制宽幅工业纯钛带的变形行为研究[J]. 稀有金属材料与工程,2020,49(7):2333.(ZHOU Guan-yu,HE An-rui,LIU Chao, et al. Modeling and simulation of wide commercial pure titanium strip rolling on Sendzimir twenty-high mill[J]. Rare Metal Materials and Engineering,2020,49(7):2333.)
[12] 潘纯久. 二十辊轧机及高精度冷轧带钢生产[M]. 北京:冶金工业出版社,2003.(PAN Chun-jiu. Twenty-High Roll Mill and Production of High-Precision Cold-Rolled Strip[M]. Beijing:Metallurgical Industry Press,2003)
[13] 刘云飞,黄煜,赵晓辉,等. 森吉米尔二十辊轧机第一中间辊横移影响特性分析[J]. 重型机械,2013(1):2.(LIU Yun-fei,HUANG Yu,ZHAO Xiao-hui,et al. Analysis on characteristics of traversing influence of the first intermediate roll in Sendzimir twenty-roller mill[J]. Heavy Machinery,2013(1):2.)
[14] 郑振忠,彭艳,刘宏民. 求解冷轧带材金属横向流动和前张应力横向分布的一种新型条元变分法[J]. 钢铁研究学报,1999,11(5):21.(ZHENG Zhen-zhong,PENG Yan,LIU Hong-min. A new strip element variation method for analysing lateral flow of metal and transverse distribution of front tension stress of cold rolled strip[J]. Journal of Iron and Steel Research,1999,11(5):21.)
[15] 刘宏民. 四辊轧机冷轧带材压力摩擦力张力横向分布的理论和实验研究[D]. 秦皇岛:燕山大学,1988.(LIU Hong-min. Theoretical and Experimental Studies on the Transverse Distribution of the Rolling Pressure,Frictional Stress and Tension in 4-High Cold Strip Rolling Mill[D]. Qinhuangdao:Yanshan University,1988.)