• CN:11-2187/TH
  • ISSN:0577-6686

机械工程学报 ›› 2020, Vol. 56 ›› Issue (3): 207-215.doi: 10.3901/JME.2020.03.207

• 制造工艺与装备 • 上一篇    下一篇

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基于元胞自动机的冷轧工作辊表面形貌演变过程仿真与试验研究

李洪波1, 夏春雨1,2, 张杰1, 孔宁1   

  1. 1. 北京科技大学机械工程学院 北京 100083;
    2. 公安部第一研究所 北京 100048
  • 收稿日期:2019-04-11 修回日期:2019-08-24 出版日期:2020-02-05 发布日期:2020-04-09
  • 通讯作者: 李洪波(通信作者),男,1982年出生,副教授,硕士研究生导师。主要研究方向为板带轧制过程中的板形控制和表面形貌控制等。E-mail:lihongbo@ustb.edu.cn
  • 基金资助:
    国家十二五科技支撑计划(2015BAF30B01)和国家自然科学基金(51404023,51604024)资助项目。

Simulated and Experimental Study on Attenuation Process of the Surface Topography of Cold Rolling Work Rolls with Cellular Automaton

LI Hongbo1, XIA Chunyu1,2, ZHANG Jie1, KONG Ning1   

  1. 1. School of Mechanical Engineering, University of Science and Technology Beijing, Beijing 100083;
    2. First Research Institute of the Ministry of Public Security of PRC, Beijing 100048
  • Received:2019-04-11 Revised:2019-08-24 Online:2020-02-05 Published:2020-04-09

摘要: 为掌握冷轧过程中毛化工作辊三维表面形貌的变化规律,建立了基于元胞自动机理论的冷轧工作辊三维表面形貌动态演变过程仿真分析模型,模型中工作辊表面黏着磨损量和磨粒磨损量分别采用Archard磨损理论和脆性断裂机制进行计算,磨粒的粒径由Monte Carlo方法随机选取,位置通过“打靶法”随机生成。以工业生产现场实际生产数据和表面形貌测试结果为依据,完成了轧制过程工作辊表面形貌变化过程的磨损试验,并利用试验数据验证了仿真模型的有效性和准确性。利用仿真模型对冷轧过程中工作辊三维表面形貌的幅度特性、空间特性、综合特性和功能特性进行了研究,清晰地揭示了轧制过程中工作辊三维表面形貌的演变过程,为进一步研究和控制工作辊表面形貌的磨损,以在轧制过程中更好地进行带钢表面形貌的控制提供了理论基础。

关键词: 冷轧, 毛化工作辊, 表面形貌, 磨损, 元胞自动机

Abstract: In order to understand the attenuation characteristics of the surface topography of textured cold rolling work rolls, a simulation model for the attenuation process is built with the cellular automaton theory. In the model, the amount of adhesive wear for work roll surface is calculated with Archard wear theory, while the amount of abrasive wear is calculated with brittle fracture mechanism, then the shape and location of the random abrasive particle are decided by the Monte Carlo method and shooting method. According to the real industrial rolling process parameters and the work roll surface topography testing data, a friction wear experiment is also carried out to simulate the wear process of work roll surface topography in cold rolling, which helped to verify the simulation model's effectiveness. With the cellular automaton model, the amplitude characteristics, spatial characteristics, comprehensive characteristics, and the functional characteristics are studied, which showed the attenuation process of the surface topography of cold rolling work rolls clearly, and offered the assistance for the research and control of the work roll surface wear, and further for the strip surface topography control during cold rolling.

Key words: cold rolling, textured work rolls, surface topography, wear, cellular automaton

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