可逆式四辊冷轧机动态设定型AGC应用研究
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摘要
我国钢铁产量已连续多年位居世界第一,稳居钢铁帝国宝座。钢铁产业是国家经济的命脉,它的发展很大程度上反映了一个国家的综合实力。现代钢铁行业发展的一个主要着眼点就是钢材质量的提高。板带材的轧制是钢材生产的重要组成部分,也是钢铁生产的基础环节,其轧制精度的高低直接影响着板带材的板形和板厚质量。
本课题以山西省冶金设备设计理论与技术重点实验室——省部共建国家重点实验室培育基地可逆式四辊轧机改造项目为依托,针对如何实现中小企业板带产品质量、寻求生存和发展等问题展开。本文通过对液压AGC和动态设定型理论(DAGC)在板厚控制方面的应用进行了研究,并根据实际情况对该轧机提出了液压AGC改造方案,将电动压下系统改成液压压下,并利用AMESim仿真软件验证了液压系统响应的快速性与稳定性;同时将轧机的板厚控制模型改为动态设定型,并利用step7编程软件进行编程将其实现;最后,利用改造完成后的轧机和控制系统进行了轧辊偏心和钢板轧制等实验研究,通过对实验数据的处理及分析,有力地证明了动态设定型理论在板厚控制方面实现了精度的提高,也证明了其控制的稳定性。
本文通过对轧机改造和控制模型改进实现了板材质量的提高,使动态设定型理论由热轧扩展到了冷轧,由连轧扩展到了单机架可逆轧制,实现了动态设定型理论的进一步推广。同时,本文也为中小轧钢企业或科研机构以小经济成本通过轧机改造实现板带质量的提高提供了一个可参考的成功案例,为中小轧钢企业实现产品改革提供了一条可行道路,为他们的可持续发展提供了理论指导。
Our country's steel output has ranked first in the world for many years, iron and steel enterprises are the main pillars of the national economy, its development largely reflects the strength of a country. The development of a modern iron and steel industry is to increase the focus of the quality of steel. The sheet rolling is an important part as well as the basic link in the steel production, its precision directly effect the quality of the strip shape and the slab thickness.
This subject, taking four-high reversing cold mill reforming project of Shanxi Provincial Key Laboratory of Metallurgical Equipment Design and Technology——State Key Laboratory Cultivation Base of Province-ministry Co-construct as a backing, has conducted the research to the application of the DAGG on slab thickness controlling. According to the actual situation, this thesis has proposed the Hydraulic AGC reform scheme, which changes the Electric Pressure System into Hydraulic Screw Down System and verifies the rapidity and stability of the Hydraulic System response with AMESim simulation software. Meanwhile, it has changed the Thickness Control Model into DAGC and will achieve it with step7 software. What’s more, with the reformed rolling mill and controlling system, this thesis has set up an experiment on Roll Eccentricity and steel rolling. Basing on the former experiment data, it powerfully proves that DAGC improves the precision of the thickness controlling and also proves its controlling stability.
This paper by reforming the rolling mill and the control model has improved the sheet material quality, which makes DAGC extended from hot rolling to cold rolling and from tandem rolling to single stand reversing rolling. Meanwhile, this thesis provides a reference success case for the small and medium-sized rolling enterprise and scientific research institution that attempts to improve the sheet quality by reforming rolling mill with small economic cost, and offers a viable method for its product reforming, which will profit its sustainable living.
本课题以山西省冶金设备设计理论与技术重点实验室——省部共建国家重点实验室培育基地可逆式四辊轧机改造项目为依托,针对如何实现中小企业板带产品质量、寻求生存和发展等问题展开。本文通过对液压AGC和动态设定型理论(DAGC)在板厚控制方面的应用进行了研究,并根据实际情况对该轧机提出了液压AGC改造方案,将电动压下系统改成液压压下,并利用AMESim仿真软件验证了液压系统响应的快速性与稳定性;同时将轧机的板厚控制模型改为动态设定型,并利用step7编程软件进行编程将其实现;最后,利用改造完成后的轧机和控制系统进行了轧辊偏心和钢板轧制等实验研究,通过对实验数据的处理及分析,有力地证明了动态设定型理论在板厚控制方面实现了精度的提高,也证明了其控制的稳定性。
本文通过对轧机改造和控制模型改进实现了板材质量的提高,使动态设定型理论由热轧扩展到了冷轧,由连轧扩展到了单机架可逆轧制,实现了动态设定型理论的进一步推广。同时,本文也为中小轧钢企业或科研机构以小经济成本通过轧机改造实现板带质量的提高提供了一个可参考的成功案例,为中小轧钢企业实现产品改革提供了一条可行道路,为他们的可持续发展提供了理论指导。
Our country's steel output has ranked first in the world for many years, iron and steel enterprises are the main pillars of the national economy, its development largely reflects the strength of a country. The development of a modern iron and steel industry is to increase the focus of the quality of steel. The sheet rolling is an important part as well as the basic link in the steel production, its precision directly effect the quality of the strip shape and the slab thickness.
This subject, taking four-high reversing cold mill reforming project of Shanxi Provincial Key Laboratory of Metallurgical Equipment Design and Technology——State Key Laboratory Cultivation Base of Province-ministry Co-construct as a backing, has conducted the research to the application of the DAGG on slab thickness controlling. According to the actual situation, this thesis has proposed the Hydraulic AGC reform scheme, which changes the Electric Pressure System into Hydraulic Screw Down System and verifies the rapidity and stability of the Hydraulic System response with AMESim simulation software. Meanwhile, it has changed the Thickness Control Model into DAGC and will achieve it with step7 software. What’s more, with the reformed rolling mill and controlling system, this thesis has set up an experiment on Roll Eccentricity and steel rolling. Basing on the former experiment data, it powerfully proves that DAGC improves the precision of the thickness controlling and also proves its controlling stability.
This paper by reforming the rolling mill and the control model has improved the sheet material quality, which makes DAGC extended from hot rolling to cold rolling and from tandem rolling to single stand reversing rolling. Meanwhile, this thesis provides a reference success case for the small and medium-sized rolling enterprise and scientific research institution that attempts to improve the sheet quality by reforming rolling mill with small economic cost, and offers a viable method for its product reforming, which will profit its sustainable living.
引文
[1]苏亚红.我国冷轧板带生产状况及展望[J].冶金信息导刊,2007,5:44-48
[2]攀钢1450mm热连轧机精轧区速度主令控制系统[J].冶金自动化,2005,1:66-68
[3] Lawrence W.Dumn,N.Y.Buffalo,Cold mill automation,Iron and Steel Engineer,1975(2):42～46
[4]李风翔,冷轧机新型控制系统[J],鞍钢技术,1985(2):1～8
[5]魏衡江,轧钢过程自动化技术的新进展(上) [J],1996,20(2):5～10
[6]张晓宇,苏宏业,褚健,可逆冷轧机APC的一种积分型LQ采样控制器设计[J],自动化仪表,2003,24(1):11～15
[7]张进之.DAGC代替GMAGC的必要性和可行性分析[J].冶金设备.2007(3):8～11
[8] Kazuma Gumi,Youji Abmo,Syousei Yamamoto.New Gage control System for Tandem Co1d Mill.Iron and Steel Engineer,1994,7(12):42～46
[9] Johns,Robert L.(Bethlehem Steel Corp),Reiner,Van R.Hydraulic AGC at Bethlehem’s Bums Harbor l60-in.plate mill.Iron and Steel Engineer,l994,71(8):52～57
[10]曾良才.板带轧机液压AGC综合测试系统及故障诊断研究[D].武汉:武汉理工大学.2005
[11]金学俊.液压AGC在板带轧机上的应用[J].液压气动与密封,2000(4):45～47
[12]连家创,刘宏民.板厚板形控制[M].北京:兵器工业出版社,1996.10～25
[13]徐志雄.液压压下厚度自动控制模型的研究与分析[J].钢铁.1981(12):35～40
[14]杨卫东.GM—AGC的伪正反馈现象研究[J].冶金自动化.2006(4):46～48
[15]李玉贵,庞思勤,黄庆学.厚度自动控制技术的发展过程分析[J].第二届宝钢学术年会论文集(2).上海科学技术文献出版社. 2006:351～358
[16]薛兴昌,焦景民.攀钢1450mm热连轧机自动化系统现代化改造总体设计和技术创新[J].冶金自动化.2005(6):1～5
[17]张芮,何昌贵,龚文等.动态设定型DAGC在热连推广应用[J]。冶金没备.200(53):16～20
[18]张进之.动态设定型变刚度厚控方法的效果分析[J].重型机械.1998(1):30～34
[19]君兴华,杨晓臻,王琦等.宝钢2050热轧板带厚控系统的研究[J].钢铁2000(1):60～62
[20]杨广,金学俊,解建平等.现代化的宝钢2050mm热轧机组[J].轧钢.2002(2)
[21]金兹伯格等.高精度板带材轧制理论与实践[M].冶金工业出版社.2000
[22]胡世光.板料压制塑性变形原理[M].国防工业出版社.2002
[23]日本钢铁协会.板带轧制理论与实践[M].中国铁道出版社.2010
[24]孔一康,童超南,彭开香等.冷轧生产自动化技术[M].冶金工业出版社.2006
[25]张进之.DAGC代替GMAGC的必要性和可行性分析[J].冶金设备.2006(3).8-11
[26]张进之,张宇.板形板厚的数学模型[J].冶金设备.2002(3).4-8
[27]张进之.AGC系统数学模型的研究[J].冶金自动化.1982(3).15-19
[28]张进之.压力AGC系统参数分析与实验验证[J].冶金设备.2006(4).25-29
[29]何纯玉,王君,吴迪等.一种中厚板轧制过程中轧件塑性系数的在线获取方法[P].中国专利:200910011740.4,2009-10-28.
[30]张文雪,张殿华,闫丹,等.板带热连轧机液压AGC系统[J].轧钢, 2009,26(3):42-45.
[31] Dutton,k.,Groves,C.N. Self-turning control of a cold mill automatic gauge control system[J] . International Journal of Control, 1996,65(4):573-5.
[32]张文雪,张殿华,闫丹,等.模型参数对压力AGC品质的影响分析[J].材料与冶金学报, 2009,8(3):209-212.
[33]关云华.2000热轧机压下系统的技术改造.有色设备,2007(3):50～52
[34]徐海,王玉姝.中厚板轧制中液压技术的应用与发展.江苏冶金,2002,30(1):24～27
[35] http://www.gxpump.com/jishuwenzhang/20093789.html
[36]张晓宁,王岩,付永领.非对称液压缸对称性控制[J].北京航空航天大学学报,2007,33(11):1334-1339
[37]邢科礼,冯玉.基于AMESim/MATLAB的电液伺服控制系统的仿真研究[J].机床与液压,2004,(10):57-58
[38]潘德军,赵桂琴.浅谈轧机双侧液压缸的同步控制方法的改进[J].江苏冶金,2002,30(3):34-36
[39]黄海涛.液压缸同步回路的设计与应用[J].流体传动与控制,2006,18(5):39-41.
[40]王辉.阀控双缸同步控制方法研究[D].济南:山东大学,2008.
[41] Ke Li, M.A. Mannan, Mingqian Xu, Ziyuan Xiao. Electro-hydraulic proportional control of twin-cylinder hydraulic elevators[J]. Control Engineering Practice 9(2001) 367-373
[42]孙萌,电液伺服系统同步控制的仿真研究与实现[D].北京交通大学硕士学位论文,2008(6)
[43]张进之.轧件塑性系数新测量方法及应用[J].钢铁,1989(2).33-37
[44]刘建吕,轧钢自动化及计算机控制系统,硕士课科讲义,东北大学,2002年
[45]黎景全,轧制工艺参数测试技术[M],北京:冶金工业出版社,2007:182-184
[46]王国栋,板带轧制理论与实践[M],北京:中国铁道出版社,1990:141--203
[47]今井一郎,ホットストリップゞルにおけるパススケヅュールの計画法*,塑性と加工Vol.5 no.44 (1964-9) 573~580
[48]张进之、张岩、戴杉等,热连轧DAGC和Φ函数负荷分配实用效果[J],《钢铁产业》2008
[49]张进之.热连轧控制系统优化设计和最优控制[J],《冶金自动化》,Vol.24,No.6, 48-51
[50]张进之,解析板型刚度理论[J],中国科学(E),2000,Vol.30,No.2, 187-192
[51]李玉贵,庞思勤,黄庆学,张进之.三种动态设定型AGC控制模型的分析[J].重型机械
[52] W.J.BockM, S.Nawrocka, W.Urbanczyk. Universal readout system for temperature, elongation and hydrostatic pressure sensors based on highly biefringent fibers[C]. IEEE TRANSATIONS ON NSTURMENTATION AND MEASUREMENTVOL, 2004, 8:170-174.
[53]张小平,秦建平.轧制理论[M].北京:冶金工业出版社,2006.
[2]攀钢1450mm热连轧机精轧区速度主令控制系统[J].冶金自动化,2005,1:66-68
[3] Lawrence W.Dumn,N.Y.Buffalo,Cold mill automation,Iron and Steel Engineer,1975(2):42～46
[4]李风翔,冷轧机新型控制系统[J],鞍钢技术,1985(2):1～8
[5]魏衡江,轧钢过程自动化技术的新进展(上) [J],1996,20(2):5～10
[6]张晓宇,苏宏业,褚健,可逆冷轧机APC的一种积分型LQ采样控制器设计[J],自动化仪表,2003,24(1):11～15
[7]张进之.DAGC代替GMAGC的必要性和可行性分析[J].冶金设备.2007(3):8～11
[8] Kazuma Gumi,Youji Abmo,Syousei Yamamoto.New Gage control System for Tandem Co1d Mill.Iron and Steel Engineer,1994,7(12):42～46
[9] Johns,Robert L.(Bethlehem Steel Corp),Reiner,Van R.Hydraulic AGC at Bethlehem’s Bums Harbor l60-in.plate mill.Iron and Steel Engineer,l994,71(8):52～57
[10]曾良才.板带轧机液压AGC综合测试系统及故障诊断研究[D].武汉:武汉理工大学.2005
[11]金学俊.液压AGC在板带轧机上的应用[J].液压气动与密封,2000(4):45～47
[12]连家创,刘宏民.板厚板形控制[M].北京:兵器工业出版社,1996.10～25
[13]徐志雄.液压压下厚度自动控制模型的研究与分析[J].钢铁.1981(12):35～40
[14]杨卫东.GM—AGC的伪正反馈现象研究[J].冶金自动化.2006(4):46～48
[15]李玉贵,庞思勤,黄庆学.厚度自动控制技术的发展过程分析[J].第二届宝钢学术年会论文集(2).上海科学技术文献出版社. 2006:351～358
[16]薛兴昌,焦景民.攀钢1450mm热连轧机自动化系统现代化改造总体设计和技术创新[J].冶金自动化.2005(6):1～5
[17]张芮,何昌贵,龚文等.动态设定型DAGC在热连推广应用[J]。冶金没备.200(53):16～20
[18]张进之.动态设定型变刚度厚控方法的效果分析[J].重型机械.1998(1):30～34
[19]君兴华,杨晓臻,王琦等.宝钢2050热轧板带厚控系统的研究[J].钢铁2000(1):60～62
[20]杨广,金学俊,解建平等.现代化的宝钢2050mm热轧机组[J].轧钢.2002(2)
[21]金兹伯格等.高精度板带材轧制理论与实践[M].冶金工业出版社.2000
[22]胡世光.板料压制塑性变形原理[M].国防工业出版社.2002
[23]日本钢铁协会.板带轧制理论与实践[M].中国铁道出版社.2010
[24]孔一康,童超南,彭开香等.冷轧生产自动化技术[M].冶金工业出版社.2006
[25]张进之.DAGC代替GMAGC的必要性和可行性分析[J].冶金设备.2006(3).8-11
[26]张进之,张宇.板形板厚的数学模型[J].冶金设备.2002(3).4-8
[27]张进之.AGC系统数学模型的研究[J].冶金自动化.1982(3).15-19
[28]张进之.压力AGC系统参数分析与实验验证[J].冶金设备.2006(4).25-29
[29]何纯玉,王君,吴迪等.一种中厚板轧制过程中轧件塑性系数的在线获取方法[P].中国专利:200910011740.4,2009-10-28.
[30]张文雪,张殿华,闫丹,等.板带热连轧机液压AGC系统[J].轧钢, 2009,26(3):42-45.
[31] Dutton,k.,Groves,C.N. Self-turning control of a cold mill automatic gauge control system[J] . International Journal of Control, 1996,65(4):573-5.
[32]张文雪,张殿华,闫丹,等.模型参数对压力AGC品质的影响分析[J].材料与冶金学报, 2009,8(3):209-212.
[33]关云华.2000热轧机压下系统的技术改造.有色设备,2007(3):50～52
[34]徐海,王玉姝.中厚板轧制中液压技术的应用与发展.江苏冶金,2002,30(1):24～27
[35] http://www.gxpump.com/jishuwenzhang/20093789.html
[36]张晓宁,王岩,付永领.非对称液压缸对称性控制[J].北京航空航天大学学报,2007,33(11):1334-1339
[37]邢科礼,冯玉.基于AMESim/MATLAB的电液伺服控制系统的仿真研究[J].机床与液压,2004,(10):57-58
[38]潘德军,赵桂琴.浅谈轧机双侧液压缸的同步控制方法的改进[J].江苏冶金,2002,30(3):34-36
[39]黄海涛.液压缸同步回路的设计与应用[J].流体传动与控制,2006,18(5):39-41.
[40]王辉.阀控双缸同步控制方法研究[D].济南:山东大学,2008.
[41] Ke Li, M.A. Mannan, Mingqian Xu, Ziyuan Xiao. Electro-hydraulic proportional control of twin-cylinder hydraulic elevators[J]. Control Engineering Practice 9(2001) 367-373
[42]孙萌,电液伺服系统同步控制的仿真研究与实现[D].北京交通大学硕士学位论文,2008(6)
[43]张进之.轧件塑性系数新测量方法及应用[J].钢铁,1989(2).33-37
[44]刘建吕,轧钢自动化及计算机控制系统,硕士课科讲义,东北大学,2002年
[45]黎景全,轧制工艺参数测试技术[M],北京:冶金工业出版社,2007:182-184
[46]王国栋,板带轧制理论与实践[M],北京:中国铁道出版社,1990:141--203
[47]今井一郎,ホットストリップゞルにおけるパススケヅュールの計画法*,塑性と加工Vol.5 no.44 (1964-9) 573~580
[48]张进之、张岩、戴杉等,热连轧DAGC和Φ函数负荷分配实用效果[J],《钢铁产业》2008
[49]张进之.热连轧控制系统优化设计和最优控制[J],《冶金自动化》,Vol.24,No.6, 48-51
[50]张进之,解析板型刚度理论[J],中国科学(E),2000,Vol.30,No.2, 187-192
[51]李玉贵,庞思勤,黄庆学,张进之.三种动态设定型AGC控制模型的分析[J].重型机械
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