提高热轧带钢厚度精度的研究
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摘要
随着社会的发展与科学技术的进步，各行各业对热轧带钢的质量要求越来越严格，厚度精度作为带钢的重要指标，一直是国内外冶金行业普遍关注的焦点。随着加工生产线设备装备水平的提高和各项新技术的应用推广，在提高热轧带钢的厚度精度上取得了长足进步。
论文论述了国内外热轧过程控制技术和热轧带钢厚度控制技术发展概况，以及液压AGC各种控制模型的特点。从理论上分析了影响热轧带钢厚度精度的各种因素，并具体分析了攀钢1450热连轧机带钢厚度特点及影响因素。此外，针对F4-F6轧机原HAGC模型难以满足生产、工艺要求进行了分析，同时对热轧三期技术改造后F1-F6轧机采用我国发明的基于“P-H”图得到的动态设定型AGC(DAGC)模型进行了解析。在此基础上，提出了F1～F6HAGC改造的具体方案和措施。
论文较为详细地解析了改造后的HAGC控制模型中的DAGC模型算法，探讨了金属流量的补偿量计算方程，分析了监控AGC与DAGC共用的相关性和有关偏心轧制力补偿、轧机刚度补偿、轧辊热凸度和磨损变化补偿、油膜轴承厚度补偿等理论与应用方法，介绍了DAGC技术在板带轧机上的应用注意事项及其效果，较好地提高了热轧带钢的厚度控制精度。
Along with the society develops and the technology progresses, quality requirement of hot strip mill for every field is more and more strictly. As the most important index, thick precision is all along the universal attention focus for internal and international metallurgy. With the improvement of product line equipment level and generalization of some new technique application, it has acquired quiet great process on increasing thick precision of hot strip mill.
This article expound internal and international hot rolling process controlling technique and development situation of hot rolling strip controlling technique, and the characteristic of various hydraulic pressure AGC controlling model. It theoretically analysis the various factors of effecting hot rolling strip thick precision, and then analysis the specific effecting factors in allusion to Pan steel 1450 hot strip mill thick characteristic. It analysis the reason of difficult to satisfy manufacture and process requirement for original HAGC of F4-F6 mills, at the same time it analysis Dynamical setting AGC(DAGC) model based on"P-H" chart invented by china which used by F1-F6 after three times technical remodeling of hot strip, and then it puts forward the specific program and method of remodeling for F1～F6HAGC.
This article interprets arithmetic in details of DAGC model in HAGC controlling model after remodeling, and then discusses the metal flax compensation calculation equation etc. It analyses the sharing relativity between accusing AGC and DAGC, as well as the theory and application methods of compensation bared on roiling force eccentricity、compensation of rolling mill rigidity、compensation of roller hot camber and wear changing、compensation of oil film thickness etc. It introduces the matters need attentions of application and affect on strip mill of DAGC technique. which improves thick controlling precision of hot strip mill preferably.
论文论述了国内外热轧过程控制技术和热轧带钢厚度控制技术发展概况，以及液压AGC各种控制模型的特点。从理论上分析了影响热轧带钢厚度精度的各种因素，并具体分析了攀钢1450热连轧机带钢厚度特点及影响因素。此外，针对F4-F6轧机原HAGC模型难以满足生产、工艺要求进行了分析，同时对热轧三期技术改造后F1-F6轧机采用我国发明的基于“P-H”图得到的动态设定型AGC(DAGC)模型进行了解析。在此基础上，提出了F1～F6HAGC改造的具体方案和措施。
论文较为详细地解析了改造后的HAGC控制模型中的DAGC模型算法，探讨了金属流量的补偿量计算方程，分析了监控AGC与DAGC共用的相关性和有关偏心轧制力补偿、轧机刚度补偿、轧辊热凸度和磨损变化补偿、油膜轴承厚度补偿等理论与应用方法，介绍了DAGC技术在板带轧机上的应用注意事项及其效果，较好地提高了热轧带钢的厚度控制精度。
Along with the society develops and the technology progresses, quality requirement of hot strip mill for every field is more and more strictly. As the most important index, thick precision is all along the universal attention focus for internal and international metallurgy. With the improvement of product line equipment level and generalization of some new technique application, it has acquired quiet great process on increasing thick precision of hot strip mill.
This article expound internal and international hot rolling process controlling technique and development situation of hot rolling strip controlling technique, and the characteristic of various hydraulic pressure AGC controlling model. It theoretically analysis the various factors of effecting hot rolling strip thick precision, and then analysis the specific effecting factors in allusion to Pan steel 1450 hot strip mill thick characteristic. It analysis the reason of difficult to satisfy manufacture and process requirement for original HAGC of F4-F6 mills, at the same time it analysis Dynamical setting AGC(DAGC) model based on"P-H" chart invented by china which used by F1-F6 after three times technical remodeling of hot strip, and then it puts forward the specific program and method of remodeling for F1～F6HAGC.
This article interprets arithmetic in details of DAGC model in HAGC controlling model after remodeling, and then discusses the metal flax compensation calculation equation etc. It analyses the sharing relativity between accusing AGC and DAGC, as well as the theory and application methods of compensation bared on roiling force eccentricity、compensation of rolling mill rigidity、compensation of roller hot camber and wear changing、compensation of oil film thickness etc. It introduces the matters need attentions of application and affect on strip mill of DAGC technique. which improves thick controlling precision of hot strip mill preferably.
引文
[1]姜明东，王国栋等译高精度板带轧制理论于实践．北京，冶金工业出版社，2000
[2]William L.Roberts.Hot rolling of Steel,Marrcel Dekker, Inc,1983
[3]王国栋．板形控制与板形理论．北京：冶金工业出版社，1985
[4]石纯一，黄昌宁．人工智能原理．北京：清华大学出版社，1993
[5]Cohen.P.R, Feigenbaum.E.A. The handbook of Artificial Intelligence. New York: William Kaufman Inc,1982
[6]Minsky.M, Papert.S. Perceptrons. Cambridge: MIT Press,1969
[7]尼尔逊．人工智能原理．石纯一等译．北京：科学出版社，1983
[8]Werbos.P. Beyond Regression: New Tools for Prediction and Analysis in the Behavioral Sciences. Doctoral Dissertation. Appl Math. Harvard University. 1974
[9]Portmann. N. F, Linhoff. D, Sorgel. G et al. Application of neural networks in rolling mill automation. Iron and Steel Engineer, 1995(2): 33～36
[10]王秀梅，王国栋，刘相华，人工神经网络和数学模型在热连轧机组轧制力预报中的综合应用，钢铁，1999，34(3)：37～39
[11]李元，刘文仲，孙一康，神经网络在热连轧精轧机组轧制力预报的应用，钢铁，1996，31(1)：54～57
[12]木村和喜，中川繁政，原口昭彦，高精度板厚制御技术开发铁钢．1993，79(3)：352-359
[13]孙本荣，王有铭，陈瑛主编．中厚板生产．冶金工业出版社，1995
[14]张进之．压力AGC系统与其它厚控制系统共用的相关性分析．冶金自动化，1987(6)：47～50
[15]Michel More. Quality control and production optimization in plate mills using the HYDROPLATE system. Iron and Steel Engineer, 1984(3): 48～53
[16]孙海波等．动态设定型变刚度厚控系统在2400中板轧机上的应用．一重技术，1995(4)：59～61
[17]张进之．压力AGC数学模型的改进．冶金自动化，1982(3)：15～19
[18]阿高松男．寸法．形状等见厚板压延技术．塑性加工，1995(10)，36(417)：1072～1077
[19]孙本荣，王有铭，陈瑛主编．中厚板生产．冶金工业出版社，1995
[20] 丁修堃．轧制过群自动化．冶金工业出版社，1986
[21] 汪祥能．丁修堃．现代带钢连轧机控制．沈阳：东北大学出版社，1996
[22] 陈贻宏，李虎兴．轧机刚性与厚控制效果．钢铁，1991(9)：41～44
[23] 何宜业．用AGC消除轧机刚度对板厚公差的影响．冶金自动化，1987(5)：48～51
[24] 张进之．AGC系统数学模型探讨．冶金自动化，1979(2)
[25] 张进之．压力AGC数学模型的改进．冶金自动化，1982(3)
[26] 张进之．AGC系统数学模型探讨．冶金自动化，1979(2)
[27] 王立平等．本钢1700mm热连轧机变刚度分析与实现．冶金自动化，1995(6)
[28] 王立平等．热连轧机厚度最优前馈控制研究．控制与决策，1995(3)
[29] 郝付国 白埃民．动态设定AGC在中厚板轧机上的应用．钢铁，1995(7)
[30] 孙海波陈德福等．新的液压AGC技术在1200WS四辊可逆冷轧机上的应用．冶金自动化，1996(3)
[31] 张进之 吴毅平等．热连轧机厚控精度分析及提高精度的途径．钢铁研究学报，1996(6)
[32] 张进之．压力AGC系统参数方程及变刚度轧机分析，冶金自动化，1984(1)
[33] Johns, Robert L.; Reiner, Van R.; Mengel, John D. Hydraulic AGC at Bethlehem's Burns Harbor 160-in. plate mill. Iron and Steel Engineer On 1994,8: 52-57
[34] 陈德福 孙海波．动态设定型变刚度液压AGC系统在1400mm高速不可逆铝板轧机上的应用．一重技术，1988(1～2)
[35] 陈德福等．冷连轧液压AGC微型计算机控制系统．冶金自动化，1988(1)
[2]William L.Roberts.Hot rolling of Steel,Marrcel Dekker, Inc,1983
[3]王国栋．板形控制与板形理论．北京：冶金工业出版社，1985
[4]石纯一，黄昌宁．人工智能原理．北京：清华大学出版社，1993
[5]Cohen.P.R, Feigenbaum.E.A. The handbook of Artificial Intelligence. New York: William Kaufman Inc,1982
[6]Minsky.M, Papert.S. Perceptrons. Cambridge: MIT Press,1969
[7]尼尔逊．人工智能原理．石纯一等译．北京：科学出版社，1983
[8]Werbos.P. Beyond Regression: New Tools for Prediction and Analysis in the Behavioral Sciences. Doctoral Dissertation. Appl Math. Harvard University. 1974
[9]Portmann. N. F, Linhoff. D, Sorgel. G et al. Application of neural networks in rolling mill automation. Iron and Steel Engineer, 1995(2): 33～36
[10]王秀梅，王国栋，刘相华，人工神经网络和数学模型在热连轧机组轧制力预报中的综合应用，钢铁，1999，34(3)：37～39
[11]李元，刘文仲，孙一康，神经网络在热连轧精轧机组轧制力预报的应用，钢铁，1996，31(1)：54～57
[12]木村和喜，中川繁政，原口昭彦，高精度板厚制御技术开发铁钢．1993，79(3)：352-359
[13]孙本荣，王有铭，陈瑛主编．中厚板生产．冶金工业出版社，1995
[14]张进之．压力AGC系统与其它厚控制系统共用的相关性分析．冶金自动化，1987(6)：47～50
[15]Michel More. Quality control and production optimization in plate mills using the HYDROPLATE system. Iron and Steel Engineer, 1984(3): 48～53
[16]孙海波等．动态设定型变刚度厚控系统在2400中板轧机上的应用．一重技术，1995(4)：59～61
[17]张进之．压力AGC数学模型的改进．冶金自动化，1982(3)：15～19
[18]阿高松男．寸法．形状等见厚板压延技术．塑性加工，1995(10)，36(417)：1072～1077
[19]孙本荣，王有铭，陈瑛主编．中厚板生产．冶金工业出版社，1995
[20] 丁修堃．轧制过群自动化．冶金工业出版社，1986
[21] 汪祥能．丁修堃．现代带钢连轧机控制．沈阳：东北大学出版社，1996
[22] 陈贻宏，李虎兴．轧机刚性与厚控制效果．钢铁，1991(9)：41～44
[23] 何宜业．用AGC消除轧机刚度对板厚公差的影响．冶金自动化，1987(5)：48～51
[24] 张进之．AGC系统数学模型探讨．冶金自动化，1979(2)
[25] 张进之．压力AGC数学模型的改进．冶金自动化，1982(3)
[26] 张进之．AGC系统数学模型探讨．冶金自动化，1979(2)
[27] 王立平等．本钢1700mm热连轧机变刚度分析与实现．冶金自动化，1995(6)
[28] 王立平等．热连轧机厚度最优前馈控制研究．控制与决策，1995(3)
[29] 郝付国 白埃民．动态设定AGC在中厚板轧机上的应用．钢铁，1995(7)
[30] 孙海波陈德福等．新的液压AGC技术在1200WS四辊可逆冷轧机上的应用．冶金自动化，1996(3)
[31] 张进之 吴毅平等．热连轧机厚控精度分析及提高精度的途径．钢铁研究学报，1996(6)
[32] 张进之．压力AGC系统参数方程及变刚度轧机分析，冶金自动化，1984(1)
[33] Johns, Robert L.; Reiner, Van R.; Mengel, John D. Hydraulic AGC at Bethlehem's Burns Harbor 160-in. plate mill. Iron and Steel Engineer On 1994,8: 52-57
[34] 陈德福 孙海波．动态设定型变刚度液压AGC系统在1400mm高速不可逆铝板轧机上的应用．一重技术，1988(1～2)
[35] 陈德福等．冷连轧液压AGC微型计算机控制系统．冶金自动化，1988(1)