工程科学学报，第38卷，第2期：276-282,2016年2月 Chinese Journal of Engineering,Vol.38,No.2:276-282,February 2016 DOI:10.13374/j.issn2095-9389.2016.02.018:http://journals.ustb.edu.cn 高速线材轧制全程温度曲线有限元模拟 邸全康2)区，王福明”，王晓晨》，杨子森，邓素怀》，郑福印) 1)北京科技大学治金与生态工程学院，北京1000832)首钢技术研究院，北京100043 ☒通信作者，E-mail:diquankang@shougang.com.cm 摘要采用Deform模拟计算加热炉铸坯温度分布，并通过“黑匣子”试验验证，当加热时间为70min时，铸坯心部与表面温 差约66℃，80n时降到15℃.模拟计算轧制和水冷过程心部和表面温度曲线，并通过测温仪验证，得出准确的摩擦热、塑性 变形热以及水冷换热系数模型.采用Fut模拟计算风机的风场，使用手持测风仪验证，再建立盘条搭接点温度模型，计算 出风冷线上强迫对流换热、自然换热和辐射换热系数以及相变潜热，使用热成像仪测温验证.模拟与试验结果十分吻合 关键词线材：轧制：温度：数值模拟：有限元法 分类号TG335.6 Finite element simulation of the temperature curve of wire rods during the whole process of rolling DI Quan-kang,WANG Fu-min,WANG Xiao-chen?,YANG Zi-sen2,DENG Su-huai,ZHENG Fu-Yin 1)School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing,Beijing 100083,China 2)Shougang Research Institute of Technology,Beijing 100043,China Corresponding author,E-mail:diquankang@shougang.com.cn ABSTRACT The temperature distribution of billets in a heating furnace is simulated by Deform software and is verified by the "black box".When the heating time is 70min the temperature difference between surface and center is about 66C,but it reduces to 15 C after 80 min.The core and surface temperatures of wire rods in rolling and cooling are calculated and testified by thermometric indicator,and afterwards,the accurate friction heat,plastic deformation heat and heat transfer coefficient of water cooling are obtained.The wind field of fans is computed by Fluent software and is confirmed by anemometer.A temperature model of the lapping point is built and used to calculate the forced convection,natural and radiation heat transfer coefficients and the latent heat of phase transformation on the air-cooling line,which are validated by thermal imager.All the numerical simulation results agree well with the test data. KEY WORDS wire rods:rolling:temperature:numerical simulation:finite element method 对于高速线材轧制过程的局部温度场模型已有相 报系统以及新产线布局设计等提供重要的技术依据. 关研究，但缺乏系统性、整体性与准确性.本文通 过Deform、Fluent等有限元软件模拟计算了中5.5mm 1各阶段温度场有限元模型的建立 高碳硬线钢在加热、变形、水冷和风冷全程的心部和表 本文研究依托首钢某高速线材轧线，其布局如图 面温度曲线，并进行了现场的试验校正，模拟计算与试 1所示，轧制流程为160mm×160mm方坯→步进式加 验结果十分吻合.本研究可为优化线材轧制工艺参 热炉→高压水除鳞→6架粗轧机组一→8架中轧机组→ 数、开发在线温度闭环控制系统、开发在线组织性能预 4架预精轧机组→两段水冷→10架精轧机组→五段水 收稿日期：2015-01-04 基金项目：国家自然科学基金资助项目(51174020)工程科学学报，第 38 卷，第 2 期: 276--282，2016 年 2 月 Chinese Journal of Engineering，Vol． 38，No． 2: 276--282，February 2016 DOI: 10． 13374 /j． issn2095--9389． 2016． 02． 018; http: / /journals． ustb． edu． cn 高速线材轧制全程温度曲线有限元模拟 邸全康1，2) ，王福明1) ，王晓晨2) ，杨子森2) ，邓素怀2) ，郑福印2) 1) 北京科技大学冶金与生态工程学院，北京 100083 2) 首钢技术研究院，北京 100043  通信作者，E-mail: diquankang@ shougang． com． cn 摘 要 采用 Deform 模拟计算加热炉铸坯温度分布，并通过“黑匣子”试验验证，当加热时间为 70 min 时，铸坯心部与表面温 差约 66 ℃，80 min 时降到 15 ℃ ． 模拟计算轧制和水冷过程心部和表面温度曲线，并通过测温仪验证，得出准确的摩擦热、塑性 变形热以及水冷换热系数模型． 采用 Fluent 模拟计算风机的风场，使用手持测风仪验证，再建立盘条搭接点温度模型，计算 出风冷线上强迫对流换热、自然换热和辐射换热系数以及相变潜热，使用热成像仪测温验证． 模拟与试验结果十分吻合． 关键词 线材; 轧制; 温度; 数值模拟; 有限元法 分类号 TG335. 6 收稿日期: 2015--01--04 基金项目: 国家自然科学基金资助项目( 51174020) Finite element simulation of the temperature curve of wire rods during the whole process of rolling DI Quan-kang1，2)  ，WANG Fu-min1) ，WANG Xiao-chen2) ，YANG Zi-sen2) ，DENG Su-huai2) ，ZHENG Fu-Yin2) 1) School of Metallurgical and Ecological Engineering，University of Science and Technology Beijing，Beijing 100083，China 2) Shougang Ｒesearch Institute of Technology，Beijing 100043，China  Corresponding author，E-mail: diquankang@ shougang． com． cn ABSTＲACT The temperature distribution of billets in a heating furnace is simulated by Deform software and is verified by the “black box”． When the heating time is 70 min the temperature difference between surface and center is about 66 ℃，but it reduces to 15 ℃ after 80 min． The core and surface temperatures of wire rods in rolling and cooling are calculated and testified by thermometric indicator，and afterwards，the accurate friction heat，plastic deformation heat and heat transfer coefficient of water cooling are obtained． The wind field of fans is computed by Fluent software and is confirmed by anemometer． A temperature model of the lapping point is built and used to calculate the forced convection，natural and radiation heat transfer coefficients and the latent heat of phase transformation on the air-cooling line，which are validated by thermal imager． All the numerical simulation results agree well with the test data． KEY WOＲDS wire rods; rolling; temperature; numerical simulation; finite element method 对于高速线材轧制过程的局部温度场模型已有相 关研究，但缺乏系统性、整体性与准确性［1--4］． 本文通 过 Deform、Fluent 等有限元软件模拟计算了 5. 5 mm 高碳硬线钢在加热、变形、水冷和风冷全程的心部和表 面温度曲线，并进行了现场的试验校正，模拟计算与试 验结果十分吻合． 本研究可为优化线材轧制工艺参 数、开发在线温度闭环控制系统、开发在线组织性能预 报系统以及新产线布局设计等提供重要的技术依据． 1 各阶段温度场有限元模型的建立 本文研究依托首钢某高速线材轧线，其布局如图 1 所示，轧制流程为 160 mm × 160 mm 方坯→步进式加 热炉→高压水除鳞→6 架粗轧机组→8 架中轧机组→ 4 架预精轧机组→两段水冷→10 架精轧机组→五段水