| 引用本文: | 徐冬,杨荃,王晓晨,张杰,李洪波.冷轧界面油膜厚度对表面形貌转印过程的影响[J].哈尔滨工业大学学报,2017,49(1):160.DOI:10.11918/j.issn.0367-6234.2017.01.024 |
| XU Dong,YANG Quan,WANG Xiaochen,ZHANG Jie,LI Hongbo.Influence of lubrication film thickness on transfer of surface topography at cold rolling interface[J].Journal of Harbin Institute of Technology,2017,49(1):160.DOI:10.11918/j.issn.0367-6234.2017.01.024 |
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| 摘要: |
| 为研究冷连轧过程中接触界面润滑油膜厚度对表面形貌转印过程的影响，在跟踪实际生产中带钢表面形貌的基础 上，结合轧辊表面磨损形貌以及润滑分析确定的界面油膜分布，建立真实表面接触的带钢形貌生成模型，用跟踪测量轧辊服 役期内生产带钢表面的粗糙度对模型进行验证.利用模型分析在不同磨损状态下电火花毛化轧辊油膜厚度对转印形成带钢 表面形貌的影响规律.结果表明：轧辊表面处于不同磨损状态时，带钢表面fla的转印率随着油膜厚度的增加而减小；轧辊表 面磨损后转印形成的带钢表面及的转印率在油膜厚度增加的初期基本保持不变，而后急剧减小.
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| 关键词: 冷轧 带钢 表面形貌 转印 润滑 |
| DOI：10.11918/j.issn.0367-6234.2017.01.024 |
| 分类号:TG335.12 |
| 文献标识码:A |
| 基金项目:国家科技支撑 (2015BAF30B01)；国家自然科学基金 (4,3)；中央高校基本科研业务费专项 (FRF-TP-15-001A1) |
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| Influence of lubrication film thickness on transfer of surface topography at cold rolling interface |
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XU Dong1,YANG Quan1,WANG Xiaochen1,ZHANG Jie2,LI Hongbo2
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（1. National Engineering Research Center of Flat Rolling Equipment（ University of Science and Technology Beijing）, Beijing 100083, China; 2. School of Mechanical Engineering, University of Science and Technology Beijing, Beijing 100083, China)
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| Abstract: |
| Based on the measurement of the surface topography of rolled steel strip，the phenomenon and rules of surface topography transfer were analyzed. Combining with the worn surface topography of roll and the distribution of lubrication oil，the transfer model of surface topography in cold rolling was established，and by which the simulation results were verified by measured data. A set of roughness parameters were introduced to analyze the effect of lubrication film thickness on the transfer performance of electrical discharge textured roll surface topography. Numerical examples show that the roughness parameters Ra of transfer ratio decreases with the increase of oil film thickness，when the surface topography of roll under different worn condition. Furthermore， with the surface topography wear of roll， Pv of transfer ratio remains when the oil film thickness is thin，but rapidly decreases with the increase of oil film thickness when the oil film thickness is thick.
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| Key words: cold rolling steel strip surface topography transfer lubrication |
