【作者】 司小明； 游慧超； 宋鸣； 刘国勇； 朱冬梅； 张少军；

【Author】 Si Xiaoming;You Huichao;Song Ming;Liu Guoyong;Zhu Dongmei;Zhang Shaojun;Maanshan Iron&Steel Company Ltd.;School of Mechanical Engineering,University of Science and Technology Beijing;

【机构】 马鞍山钢铁股份有限公司； 北京科技大学机械工程学院；

【摘要】 在热轧带钢生产中,工作辊温度是影响带钢板形和凸度的重要因素。利用有限元软件ANSYS建立了工作辊的二维非稳态温度场计算模型,对精轧工作辊的温度场进行了数值模拟,研究了不同因素等对工作辊辊温变化规律的影响。研究发现:下工作辊的冷却效果要好于上工作辊的冷却效果;出口侧水量越大,工作辊表面处于高温状态的时间就越短,表面温度下降的越快,有利于抑制工作辊氧化,减少带钢表面氧化铁皮缺陷;带钢温度越高,工作辊在轧制过程中的最高表面温度就越大。更多还原

【Abstract】 The temperature of work roll is an important factor affecting profile and flatness of strips during hot strip rolling. The 2 D model for simulating the temperature field of work roll was established with ANSYS software. The influences of different parameters on the evolution and distribution of work roll temperature were analyzed. It is found that the cooling effect of lower work roll is better than that of top work roll. Increasing water flow rate of strip exit is a reasonable method for dropping surface temperature of work roll soon and enhancing cooling effect. In addition, the maximum surface temperature of work roll will increase with increasing strip temperature.更多还原