Numerical simulation and model of control-efficiency of thermal crown of work rolls in cold rolling

被引：4

作者：

Li Xue-tong ^{[1
,2
]}

Wang Min-ting ^{[3
]}

Du Feng-shan ^{[1
,2
]}

Zhang Guo-liang ^{[4
]}

机构：

[1] Yanshan Univ, Natl Engn Res Ctr Equipment & Technol Cold Strip, Qinhuangdao 066004, Peoples R China

[2] Yanshan Univ, Natl Key Lab Metastable Mat Sci Technol, Qinhuangdao 066004, Peoples R China

[3] Yanshan Univ, Coll Mech Engn, Qinhuangdao 066004, Peoples R China

[4] Dalian Design & Res Inst Co Ltd, China First Heavy Ind, Dalian 116600, Peoples R China

来源：

JOURNAL OF CENTRAL SOUTH UNIVERSITY | 2014年 / 21卷 / 06期

关键词：

cold rolling; finite difference method; thermal crown; control-efficiency factor; PREDICTION MODEL; CONTOUR;

D O I：

10.1007/s11771-014-2166-2

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Aiming at accuracy control of the thermal crown of work rolls in cold rolling, new parameters such as regulation domain and control-efficiency factors were proposed and a numerical analysis model of the thermal crown of work rolls was established using finite difference method to study roll's thermal deformation. Based on simulation results, the influences of control-efficiency factors on thermal crown are presented and the thermal crown of work rolls is analyzed after taking sub-cooling of sprinkling beam into consideration. It has been found that the control-efficiency factor of any position on the roll's surface is linear function of the temperature and the control ability of water temperature is stronger than other control parameters. In addition, the verification of the model has been carried out based on the producing technology data in some factories and the numerical simulation results coincide well with the experimental data. Therefore, this work has important value for on-line control of roll's crown in cold rolling.

引用

页码：2160 / 2167

页数：8

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