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采用有限元方法对热轧钢卷冷却中的温度场进行解析,求解过程中考虑了钢卷径向各层之间接触对传热的影响以及卷心热辐射的自持作用,得到了钢卷不同部位的温度分布和在50 h冷却过程的温降曲线。在钢卷表面取代表点,现场实测了冷却50 h后的钢卷温度变化过程,并与有限元计算值进行了对比,表明计算值与实测值吻合较好。同时模拟研究了钢卷强制冷却条件下的温度演变,指出钢卷强制冷却可以大大加快成品库的周转。
The finite element method is used to analyze the temperature field in the cooling process of the hot-rolled steel coil. The influence of the contact between the layers in the radial direction of the steel coil on the heat transfer and the self- Site temperature distribution and temperature drop curve during 50 h cooling. On the surface of the steel coil, the temperature of the coil was changed after 50 hours of cooling, and compared with the calculated value of the finite element. The calculated values agree well with the measured values. At the same time, the temperature evolution under coercive cooling condition of coiled steel was simulated, and it was pointed out that forced cooling of coiled steel could greatly speed up the turnover of finished product warehouse.