平整轧制过程中工作辊粗糙度衰减模型
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摘要
针对以往平整工序工作辊表面粗糙度衰减模型仅仅考虑轧辊材质与轧制公里数影响,而忽略所平整带钢的特性以及轧制压力等工艺参数作用,造成辊面实际粗糙度预报误差较大以致影响成品带钢表面粗糙度的控制精度问题,充分结合平整轧制过程的设备与工艺特点,通过大量的理论研究与现场试验,在从微观层面分析了平整轧制过程中工作辊表面粗糙度衰减机理的基础上,不但考虑到工作辊表面硬度、表面原始粗糙度的影响,而且考虑到平整轧制过程中的单位轧制压力及单位摩擦应力的作用,建立了一套适合于平整轧制的工作辊表面粗糙度衰减模型,编制出了相应的工作辊表面粗糙度预报软件,并将其应用到某1 420平整机组的生产实践,取得了良好的使用效果,提高了成品带钢表面粗糙度的控制精度,为机组创造了较大的效益,具有进一步推广应用的价值。
For the previous flattening process,the surface roughness attenuation model of work rolls only considers the influence of the roll material and rolling kilometers,and ignores the characteristics of the flat strip,the rolling pressure effect and other parameters,resulting in a large error in the actual roughness prediction of the roll surface and the control accuracy problem of the surface roughness of the finished strip. Based on the equipment and process characteristics of the temper rolling process,through a large number of theoretical studies and field experiments,the surface roughness attenuation mechanism of the work roll during the temper rolling process was analyzed. Considering the influence of the surface hardness and surface roughness of the work roll and considering the effect of unit rolling pressure and the unit friction stress during temper rolling,a set of work roll surface roughness attenuation suitable for the temper rolling was established. The corresponding work surface roughness prediction software of the work roll was compiled and applied to the production practice of a 1 420 flat units. The good use effect was obtained,and the control precision of the surface roughness of the finished strip was improved,which created a better great benefits and had a value of further promotion and application.
For the previous flattening process,the surface roughness attenuation model of work rolls only considers the influence of the roll material and rolling kilometers,and ignores the characteristics of the flat strip,the rolling pressure effect and other parameters,resulting in a large error in the actual roughness prediction of the roll surface and the control accuracy problem of the surface roughness of the finished strip. Based on the equipment and process characteristics of the temper rolling process,through a large number of theoretical studies and field experiments,the surface roughness attenuation mechanism of the work roll during the temper rolling process was analyzed. Considering the influence of the surface hardness and surface roughness of the work roll and considering the effect of unit rolling pressure and the unit friction stress during temper rolling,a set of work roll surface roughness attenuation suitable for the temper rolling was established. The corresponding work surface roughness prediction software of the work roll was compiled and applied to the production practice of a 1 420 flat units. The good use effect was obtained,and the control precision of the surface roughness of the finished strip was improved,which created a better great benefits and had a value of further promotion and application.
引文
[1]张晓峰,李瑞,张勃洋,等.平整轧制过程中带钢表面形貌的生成模型[J].机械工程学报,2013,49(14):38.(ZHANGXiao-feng,LI Rui,ZHANG Bo-yang,et al.Model for the generation of surface topography in steel strip temper rolling[J].Journal of Mechanical Engineering,2013,49(14):38.)
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[3]张清东,张勃洋,李瑞,等.钢板微观表面质量控制理论与技术研究进[J].机械工程学报,2016,52(10):32.(ZHANGQing-dong,ZHANG Bo-yang,LI Rui,et al.Advances in theory and technology for microscopic surface quality control of steel strip[J].Journal of Mechanical Engineering,2016,52(10):32.)
[4]任新意,王松涛,高慧敏,等.冷轧薄规格高强钢表面斜纹缺陷分析与控制[J].中国冶金,2017,27(10):59.(REN Xinyin,WANG Song-tao,GAO Hui-min,et al.Analysis and control of feathering defects on surface of cold rolled thin gauge high strength steel[J].China Metallurgy,2017,27(10):59.)
[5]LI Rui,ZHANG Qing-dong,ZHANG Xiao-feng,et al.Control method for steel strip roughness in two-stand temper mill rolling[J].Chinese Journal of Mechanical Engineering,2015,28(3):573.
[6]周庆田,白振华,王骏飞.冷连轧过程板面粗糙度模型及其应用的研究[J].中国机械工程,2007,18(14):1743.(ZHOUQing-tian,BAI Zhen-hua,WANG Jun-fei.Research and application of strip surface roughness model about tandem cold mill[J].China Mechanical Engineering,2007,18(14):1743.)
[7]吴越,张清东,刘军,等.带钢冷轧机工作辊表面粗糙度实测研究[J].机械工程学报,2003,39(11):90.(WU Yue,ZHANGQing-dong,LIU Jun,et al.Test and statistical research of surface roughness of work in cold tandem mills[J].Journal of Mechanical Engineering,2003,39(11):90.)
[8]高兴昌.冷轧带钢表面粗糙度的影响因素与复制率研究[J].本钢技术,2013(1):31.(GAO Xing-chang.Study on control technology of cold rolled strip roughness[J].Bengang Technology,2013(1):31.)
[9]井玉安,臧晓明,商秋月,等.还原冷轧过程中带钢表面形貌演变规律[J].钢铁,2014,49(12):38.(JING Yu-an,ZANGXiao-ming,SHANG Qiu-yue,et al.Surface morphology evolution of steel strip during cold rolling after hydrogen reduction[J].Iron and Steel,2014,49(12):38.)
[10]李秀军,黄业钢,康晓鹏,等.平整轧制过程中轧辊表面粗糙度衰减模型[J].冶金设备,2008,172(6):48.(LI Xiu-jun,HUANG Ye-gang,KANG Xiao-peng,et al.Researching of working roll surface roughness attenuation model in temper rolling process[J].Metallurgical Equipment,2008,172(6):48.)
[11]尤媛,李洪波,夏春雨,等.冷轧毛化工作辊粗糙度衰减过程的试验与数学模型研究[J].机械工程学报,2018,54(12):173.(YOU Yuan,LI Hong-bo,XIA Chun-yu,et al.Experimental and mathematical model study of attenuation process of the surface roughness of textured work rolls during cold rolling[J].Journal of Mechanical Engineering,2018,54(12):173.)
[12]张雍,张清东,李瑞,等.带钢冷轧机工作辊表面轧制磨损形貌的模拟仿真[J].中国表面工程,2015,28(3):114.(ZHANGYong,ZHANG Qing-dong,LI Rui,et al.Simulation of the rolling-wear microtopograph of working roll surface during strip cold rolling[J].China Surface Engineering,2015,28(3):114.)
[13]孙靖民,梁迎春.机械优化设计[M].北京:机械工业出版社,2006.(SUN Jing-min,LIANG Ying-chun.Mechanical Optimization Design[M].Beijing:Mechanical Industry Press,2006.)
[2]魏立新,高江曼,麻诚,等.冷轧平整机工作辊表面粗糙度衰减模型[J].钢铁,2015,50(6):51.(WEI Li-xin,GAO Jiangman,MA Cheng,et al.Attenuation model for working roll's surface roughness in cold rolling temper mill[J].Iron and Steel,2015,50(6):51.)
[3]张清东,张勃洋,李瑞,等.钢板微观表面质量控制理论与技术研究进[J].机械工程学报,2016,52(10):32.(ZHANGQing-dong,ZHANG Bo-yang,LI Rui,et al.Advances in theory and technology for microscopic surface quality control of steel strip[J].Journal of Mechanical Engineering,2016,52(10):32.)
[4]任新意,王松涛,高慧敏,等.冷轧薄规格高强钢表面斜纹缺陷分析与控制[J].中国冶金,2017,27(10):59.(REN Xinyin,WANG Song-tao,GAO Hui-min,et al.Analysis and control of feathering defects on surface of cold rolled thin gauge high strength steel[J].China Metallurgy,2017,27(10):59.)
[5]LI Rui,ZHANG Qing-dong,ZHANG Xiao-feng,et al.Control method for steel strip roughness in two-stand temper mill rolling[J].Chinese Journal of Mechanical Engineering,2015,28(3):573.
[6]周庆田,白振华,王骏飞.冷连轧过程板面粗糙度模型及其应用的研究[J].中国机械工程,2007,18(14):1743.(ZHOUQing-tian,BAI Zhen-hua,WANG Jun-fei.Research and application of strip surface roughness model about tandem cold mill[J].China Mechanical Engineering,2007,18(14):1743.)
[7]吴越,张清东,刘军,等.带钢冷轧机工作辊表面粗糙度实测研究[J].机械工程学报,2003,39(11):90.(WU Yue,ZHANGQing-dong,LIU Jun,et al.Test and statistical research of surface roughness of work in cold tandem mills[J].Journal of Mechanical Engineering,2003,39(11):90.)
[8]高兴昌.冷轧带钢表面粗糙度的影响因素与复制率研究[J].本钢技术,2013(1):31.(GAO Xing-chang.Study on control technology of cold rolled strip roughness[J].Bengang Technology,2013(1):31.)
[9]井玉安,臧晓明,商秋月,等.还原冷轧过程中带钢表面形貌演变规律[J].钢铁,2014,49(12):38.(JING Yu-an,ZANGXiao-ming,SHANG Qiu-yue,et al.Surface morphology evolution of steel strip during cold rolling after hydrogen reduction[J].Iron and Steel,2014,49(12):38.)
[10]李秀军,黄业钢,康晓鹏,等.平整轧制过程中轧辊表面粗糙度衰减模型[J].冶金设备,2008,172(6):48.(LI Xiu-jun,HUANG Ye-gang,KANG Xiao-peng,et al.Researching of working roll surface roughness attenuation model in temper rolling process[J].Metallurgical Equipment,2008,172(6):48.)
[11]尤媛,李洪波,夏春雨,等.冷轧毛化工作辊粗糙度衰减过程的试验与数学模型研究[J].机械工程学报,2018,54(12):173.(YOU Yuan,LI Hong-bo,XIA Chun-yu,et al.Experimental and mathematical model study of attenuation process of the surface roughness of textured work rolls during cold rolling[J].Journal of Mechanical Engineering,2018,54(12):173.)
[12]张雍,张清东,李瑞,等.带钢冷轧机工作辊表面轧制磨损形貌的模拟仿真[J].中国表面工程,2015,28(3):114.(ZHANGYong,ZHANG Qing-dong,LI Rui,et al.Simulation of the rolling-wear microtopograph of working roll surface during strip cold rolling[J].China Surface Engineering,2015,28(3):114.)
[13]孙靖民,梁迎春.机械优化设计[M].北京:机械工业出版社,2006.(SUN Jing-min,LIANG Ying-chun.Mechanical Optimization Design[M].Beijing:Mechanical Industry Press,2006.)