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首页> 外文会议>Asia Simulation Conference/International Conference on System Simulation and Scientific Computing >Analysis of Transient Response to the Continuous Casting Billet's Three-dimensional Temperature Field under Speed Disturbance
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Analysis of Transient Response to the Continuous Casting Billet's Three-dimensional Temperature Field under Speed Disturbance

机译：速度扰动下连铸坯料三维温度场的瞬态响应分析

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摘要

According to the characters of billet heat transfer, a three-dimensional transient heat transfer model was developed. Based on the results of solving with finite element methods, it was analyzed that three-dimensional temperature field transient response process of 45 # steel under the disturbances of casting speed. The simulation results show the reheat is higher during the continuous casting descend abruptly, and the heat stress and the inner defects increases with the reheat obviously. The current mode of the secondary cooling waters must be improved to decrease the transient reheat aroused by the speed variation abruptly. Comparatively, because of the decrease of transient reheat during casting speed ascending abruptly, the heat exchanges speedy due to the increase of spray waters with the casting speed, it is not necessary to control compensation.
机译：根据坯料传热的特点，开发了一种三维瞬态传热模型。基于用有限元方法解决的结果，分析了45＃钢下铸速下的三维温度场瞬态响应过程。仿真结果显示在连续铸造下降期间再热量较高，并且热应力和内缺陷明显增加再加热。必须改进二次冷却水的电流模式以减小通过速度变化引起的瞬态再加热。相比之下，由于在浇铸速度突然上升期间瞬态再加热的降低，由于喷雾速度的喷雾水的增加，热交换速度迅速，因此不需要控制补偿。

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