Transactions of Materials and Heat Treatment

Title：Design and research on new contour of back-up roll for 4300 mm wide plate mill

Authors： Chen Xianwang Sun Dengyue Xu Shimin

Unit： Yanshan University

KeyWords： contour of back-up roll stress field fatigue life strip shape

ClassificationCode：TG333.17

year,vol(issue):pagenumber：2016,41(2):98-102

Abstract：

Based on the Hertz theory, the stress state between back-up roll and work roll was analyzed. Combining with several existing back-up roll contour curves, a new back-up roll contour chamfering in accordance with the uniform distribution of contact stress was proposed. A 3-D finite element rolling model was also established by the finite element software ABAQUS, and the stress field of the back-up roll, deflection of working roll and thickness difference of steel plate under the different roll contour chamfering were analyzed and compared by changing the rolling parameters. Combined with the results of finite element analysis, the fatigue life of the back-up roll with the different roll contour chamfering was predicted by FE-SAFE fatigue analysis software and the fatigue damage criterion of Brown-Miller. It is proved that the new contour back-up roll is very effective for improving the fatigue life of back-up roll.

Funds：

河北省自然科学基金资助项目(E2010001155)

陈显望(1990-)，男，硕士研究生

Reference：

[1]孙大乐, 赵建国. 宽带钢轧机支承辊辊形优化设计[J]. 钢铁, 2011, 46(6): 40-43.Sun D L, Zhao J G. Optimum design on profile of backup roll used for wide strip mill[J].Iron and Steel,2011,46(6): 40-43.

[2]张智勇, 秦旭, 宋榜军. 热轧板带支承辊的使用与管理[J]. 一重技术, 2010,(6):64-67.Zhang Z Y, Qin X, Song B J. Application and management of back-up roll of hot rolled flat product mill[J].CFHI Technology, 2010,(6):64-67.

[3]付志云.支承辊边部缺陷分析与控制技术[J]. 大型铸锻件, 2011,(2):12-14.Fu Z Y. The analysis and control of the defects in the backup roll edge[J]. Heavy Casting and Forging,2011,(2):12-14.

[4]邹家祥. 轧钢机械[M]. 北京:冶金工业出版社,1995.Zou J X. Rolling Machine[M]. Beijing: Metallurgical Industry Press,1995.

[5]温诗铸. 摩擦学原理[M]. 北京:清华大学出版社, 1990. Wen S Z. Tribology Principle[M].Beijing: Tsinghua University Press,1990.

[6]邓建中. 支承辊的维护与保养[J]. 江苏冶金, 2004, 32(6): 43-46.Deng J Z. Maintenance of backup roll[J].Jiangsu Metallurgy, 2004, 32(6): 43-46.

[7]杜征. 基于ABAQUS的4300 mm宽厚板支承辊有限元研究及疲劳寿命计算[D]. 秦皇岛: 燕山大学, 2012.Du Z. Research on Backup Roll for 4300 mm Wide Plate Mill with ABAQUS Software and Calculation of the Fatigue Life[D].Qinhuangdao: Yanshan University,2012.

[8]马艳飞, 张小平,李月,等. 热连轧板带精轧变形有限元数值模拟[J]. 锻压技术, 2014, 39(6): 142-146.Ma Y F, Zhang X P, Li Y, et al. Finite element numerical simulation of finishing rolling deformation for hot continuous rolling strip[J]. Forging & Stamping Technology, 2014, 39(6): 142-146.

[9]王蕊, 侯红娟. 轧辊失效原因分析及预防措施[J]. 太原科技大学学报, 2006, 27(9): 85-86.Wang R, Hou H J. Study on the causes of the lost effectiveness and the preventive measures in roll[J].Journal of Taiyuan University of Science and Technology, 2006, 27(9): 85-86.

[10]吴民达, 吴关昌, 陆明炯,等. 机械工程材料性能数据手册[M]. 北京:机械工业出版社,1994.Wu M D, Wu G C, Lu M J, et al. Mechanical Engineering Material Properties Data Manual[M].Beijing: China Machine Press,1994.

Service：

【This site has not yet opened Download Service】【Add Favorite】