| 武钢2250热轧平整机不均匀磨损及板形调控特性 |
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| 引用本文： | 杨光辉,张杰,周一中,王安苏,朱新宇. 武钢2250热轧平整机不均匀磨损及板形调控特性[J]. 北京科技大学学报, 2009, 31(8) |
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| 作者姓名： | 杨光辉 张杰 周一中 王安苏 朱新宇 |
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| 作者单位： | 1. 北京科技大学机械工程学院,北京,100083
2. 武汉钢铁,集团,公司热轧厂,武汉,430083 |
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| 摘 要： | 针对首次采用的兼有HCW和WRS两种机型特点的武钢2250热轧带钢平整机在平整过程表现出的工作辊磨损严重且不均匀、工作辊存在特殊的弯辊调节现象等问题,由连续跟踪测试发现该平整机在轧制服役过程中存在典型的"W"形工作辊磨损规律,通过定义磨损影响系数对"W"形磨损进行了分析.研究了工作辊磨损、工作辊窜辊和弯辊对板形调控的综合影响,并通过实验证明最终解释了热轧平整机特殊的弯辊调节现象.指出随着工作辊磨损的加剧,工作辊形成了特殊的"W"形磨损,使工作辊在板宽范围内形成了一定量的正凸度,造成辊缝凸度减小,必须通过使用工作辊由正弯辊向负弯辊逐渐变化的调节手段来增大承载辊缝凸度,以补偿平整过程中工作辊磨损和窜辊引起的承载辊缝凸度的减小,从而保证承载辊缝凸度的相对稳定.
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| 关 键 词： | 平整机 轧辊 板形控制 磨损 热轧 |
Work roll non-uniform wear and shape control performance of the 2250 hot temper mill in WISCO |
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| YANG Guang-hui,ZHANG Jie,ZHOU Yi-zhong,WANG An-su,ZHU Xin-yu. Work roll non-uniform wear and shape control performance of the 2250 hot temper mill in WISCO[J]. Journal of University of Science and Technology Beijing, 2009, 31(8) |
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| Authors: | YANG Guang-hui ZHANG Jie ZHOU Yi-zhong WANG An-su ZHU Xin-yu |
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| Abstract: | A 2250 hot temper mill was first adopted in WISCO (Wuhan Iron & Steel (Group) Corp.) of China for wide strip production and it has both HCW and WRS mill type characteristics. During operation,some problems were found,for example,work rolls were worn badly and non-uniformly,there were especial adjusting phenomena of work roll bending force,and shape control was not satisfied. Continuous tracking measurements were carried out and the typical characteristic of W-shape work roll wear was found in a roll serving... |
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| Keywords: | leveler roll shape control wear hot rolling |
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