20辊轧机非对称冷却的板形预报模型及影响因素分析

doi:10.3969/j.issn.1004-132X.2025.07.022

中国机械工程 ›› 2025, Vol. 36 ›› Issue (07): 1592-1599,1610.DOI: 10.3969/j.issn.1004-132X.2025.07.022

20辊轧机非对称冷却的板形预报模型及影响因素分析

崔熙颖¹;王文奇¹;徐世浩¹;刘阔¹;Sahal Ahmed ELMI¹;白振华^1,2,3*

1.燕山大学国家冷轧板带装备及工艺工程技术研究中心，秦皇岛，066004
2.燕山大学亚稳材料制备技术与科学国家重点实验室，秦皇岛，066004
3.燕山大学深圳研究院，深圳，518000

出版日期:2025-07-25 发布日期:2025-09-04
作者简介:崔熙颖，男，1992年生，博士。研究方向为20辊轧机薄板带轧制。发表论文6篇。E-mail:1339926909@qq.com。
基金资助:
河北省自然科学基金（E2024203125）；河北省高等学校科学技术研究项目（CXY2023012）；河北省重大科技成果转化专项（22281001Z，23280101Z）

Prediction Model with Asymmetric Cooling and Analysis of Influencing Factors of Plate Shapes in 20-high Rolling Mills

CUI Xiying¹;WANG Wenqi¹;XU Shihao¹;LIU Kuo¹;Sahal Ahmed ELMI¹;BAI Zhenhua^1,2,3*

1.National Engineering Research Center for Equipment and Technology of Cold Strip Rolling，
Yanshan University，Qinhuangdao，Hebei，066004
2.State Key Laboratory of Metastable Materials Science and Technology，Yanshan University，
Qinhuangdao，Hebei，066004
3.Shenzhen Research Institute,Yanshan University,Shenzhen，Guangdong，518000

Online:2025-07-25 Published:2025-09-04

摘要/Abstract

摘要： 针对20辊轧机成品带钢板形的边浪缺陷问题，提出多边界条件与乳化液传热系数耦合的温度场计算方法，建立了20辊轧机的上下工作辊异温热辊型计算模型。对支撑辊分段压下形式的辊系进行受力分析，阐明了多层辊系的变形协调关系。构建的薄板带20辊轧机精密轧制过程板形预报模型使计算精度提高31.1%，揭示了上下工作辊原始凸度差异、一中间辊锥型、支撑辊背衬轴承压下等因素对薄板带板形的影响规律。

关键词: 20辊轧机, 板形, 温度场, 轧辊凸度

Abstract: Aiming at the edge wave defects in the shapes of finished strip steels produced by 20-high rolling mills, a temperature field calculation method was proposed coupled with multiple boundary conditions and emulsion heat transfer coefficients. A differentiated thermal crown calculation model for upper and lower work rolls in 20-high rolling mills was established. Mechanics analysis was conducted on the segmented reduction pattern of backup rolls, and the deformation coordination relationships in multi-layer roll systems were elucidated. The shape prediction model was developed, which improves computational accuracy by 31.1%, for precision rolling processes in thin-strip 20-high rolling mills. The influence patterns of factors, such as original crown difference between upper and lower work rolls, taper configuration of the first intermediate rolls, and backing bearing reduction of backup rolls on thin-strip shape formation, were revealed.

Key words: 20-high rolling mill, shape, temperature field, roll crown

中图分类号:

TG331

崔熙颖1, 王文奇1, 徐世浩1, 刘阔1, Sahal Ahmed ELMI1, 白振华1, 2, 3. 20辊轧机非对称冷却的板形预报模型及影响因素分析[J]. 中国机械工程, 2025, 36(07): 1592-1599,1610.

CUI Xiying1, WANG Wenqi1, XU Shihao1, LIU Kuo1, Sahal Ahmed ELMI1, BAI Zhenhua1, 2, 3. Prediction Model with Asymmetric Cooling and Analysis of Influencing Factors of Plate Shapes in 20-high Rolling Mills[J]. China Mechanical Engineering, 2025, 36(07): 1592-1599,1610.

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链接本文: https://www.cmemo.org.cn/CN/10.3969/j.issn.1004-132X.2025.07.022

https://www.cmemo.org.cn/CN/Y2025/V36/I07/1592

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20辊轧机非对称冷却的板形预报模型及影响因素分析

Prediction Model with Asymmetric Cooling and Analysis of Influencing Factors of Plate Shapes in 20-high Rolling Mills

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