基于正交试验铸轧带钢气雾冷却温度场分析

详细信息    查看全文 | 推荐本文 |

英文篇名：Temperature Field Analysis on Cast Rolling Strip Subjected to Aerosol Cooling Based on Orthogonal Experiment 作者：霍昌军 ; 周西康 ; 刘国勇 ; 李晓杰 ; 朱冬梅 英文作者：Huo Changjun;Zhou Xikong;Liu Guoyong;Li Xiaojie;Zhu Dongmei;EAF Steelmaking Plant ,Jiangsu Shagang Group Co.,Ltd;Steel Rolling and Metal Processing Technology Division,Capital Engineering and Research Incorporation Limited;School of Mechanical Engineering,University of Science and Technology Beijing; 关键词：铸轧 ; 带钢 ; 气雾冷却 ; 温度场 ; 数值模拟 英文关键词：Cast rolling;;Steel strip;;Aerosol cooling;;Temperature field;;Numerical simulation 中文刊名：YJSB 英文刊名：Metallurgical Equipment 机构：江苏沙钢集团有限公司电炉炼钢厂;中冶京诚工程技术有限公司轧钢与金属加工工程技术所;北京科技大学机械工程学院; 出版日期：2018-08-15 出版单位：冶金设备 年：2018 期：No.244 语种：中文; 页：YJSB201804010 页数：7 CN：04 ISSN：11-2183/TF 分类号：38-44

摘要

利用ANSYS对铸轧带钢气雾冷却温度场进行数值模拟。结合铸轧冷却的特点,分析气雾冷却影响因素为水压、气压、运行速度、终轧温度及终轧厚度。结果表明:芯部温度是随着水压及气压的增大,带钢芯部温度是降低趋势,且低水压段影响程度为0.1℃/kPa,高水压段影响程度为0.037℃/kPa;低气压段影响程度为0.037℃/kPa,高气压段影响程度为0.082℃/kPa。通过正交试验设计,采用直观分析和方差分析方法,分析了运行速度、水压及气压对带钢芯部温度的影响。结果表明:运行速度对带钢芯部温度影响效果最为显著,水压和气压对钢板芯部温度有一定的影响。
        Numerical simulation was performed to study temperature field of cast rolling strip subjected to aerosol cooling by ANSYS. In combination with the cooling characteristic of cast rolling,some influencing factors on heat transfer such as water pressure,air pressure,rolling velocity,end rolling temperature and end rolling thickness were analyzed. The results show that, the higher the water and air pressure are, the lower the temperature of the strip center is. and low water pressure influence degree is 0. 1℃/kPa,high water pressure section of the influence degree is 0. 037℃/kPa; depression period influence degree is 0. 037℃/kPa,high pressure period of influence degree is 0. 082℃/kPa. Based on the orthogonal experiment design,the influencing parameters including moving speed,hydraulic pressure and air pressure were analyzed and contrasted through direct analysis and variance analysis. The results show that,the moving speed could significantly influence the temperature of the strip center comparing with the other factors; water pressure and air pressure have a certain effect on the temperature of the strip center.

引文

[1]殷瑞钰,张惠.新形势下薄板坯连铸连轧技术的进步与发展方向[J].钢铁,2011,46(4):1.
    [2]康永林.薄板坯连铸连轧超薄规格板带技术及其应用进展[J].轧钢,2015,32(01):7.
    [3]王利民.热轧超薄带钢ESP无头轧制技术发展和应用[J].冶金设备,2014(S1):60.
    [4]王定武.无头铸轧带钢技术新进展[N].世界金属导报,2016-09-06(F01).
    [5]Chris R.Killmore,Andrew Phillips,Harold Kaul,陈卡尔.铸轧技术生产超薄带钢工艺的发展[J].鞍钢技术,2009(02):57.
    [6]王国栋.均匀化冷却技术与板带材板形控制[J].上海金属,2007(06):1.
    [7]陈丽娟,黄全伟,汪水泽,等.热轧带钢不同冷却模式温度场数值模拟[J].钢铁研究,2015,43(06):25.
    [8]支颖,刘相华,王国栋.热轧带钢层流冷却中的温度演变及返红规律[J].东北大学学报,2006(04):410.
    [9]余伟,卢小节,陈银莉,等.热轧带钢在常规层流冷却中温度不均匀性的有限元分析[J].钢铁,2011,46(04):44.
    [10]张鹏,程树森,常崇明,等.热轧带钢层流冷却过程温度场研究[J].钢铁,2014,49(10):51.
    [11]王兴华.热轧厂层流冷却设备的布局及计算[J].中国冶金,2014,24(8):51.
    [12]胡彬彬,严政,等.带钢层流冷却过程中冲击穿透深度的数值模拟[J].中国冶金,2017,27(5):33.
    [13]何叶从,邹国荣,肖益民,等.间接蒸发冷却用气-水雾化喷嘴特性实验研[J].重庆建筑大学学报,2008,30(6):124.
    [14]梅国晖,武荣阳,孟红记,等.气水雾化喷嘴最佳气水比的确定[J].钢铁钒钛,2004,25(2):49.
    [15]Hernandez C I,Acosta G F A,Castillejos EAH,et al.The fluid dynamics of secondary cooling air-mist jets[J].Metallurgical and Materials Transactions B.2008:746.
    [16]Pan2o M R O,Moreira A L N,Dur?o D F G.Thermal-fluid assessment of multi jet atomization for spray cooling applications[J].Energy.2011,36(4):2302.
    [17]Pan2o M R O,Guerreiro J P P V,Moreira A L N.Microprocessor cooling based on an intermittent multi jet spray system[J].International Journal of Heat&Mass Transfer.2012,55(11-12):2854.
    [18]Sarkar S,Selvam R P.Direct Numerical Simulation of Heat Transfer in Spray Cooling Through 3D Multiphase Flow Modeling Using Parallel Computing[J].Journal of Heat Transfer.2009,131(12):315.