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以薄板坯连铸连轧流程为研究对象,对薄板坯连铸凝固传热过程、辊底加热炉加热过程、热轧过程和层流冷却过程进行数值计算,得到4个过程薄板坯的温度场分布。结果表明:通过调节凝固传热过程二冷区水量分配比有助于层流冷却过程节水;适当增大拉坯速度有利于加热炉加热过程节能,且热轧过程和层流冷却过程带钢表面温度均得到提高;与层流冷却方式一相比,相同水量条件下冷却方式二使得终冷温度降低了2.9℃,这一冷却方式相同终冷温度要求下有利于节水。
Taking the process of thin slab continuous casting and rolling as the research object, the numerical simulation of the solidification and heat transfer process, the heating process of roller hearth furnace, the hot rolling process and the laminar cooling process were carried out. The temperature field distributed. The results show that the water distribution in the second cooling zone can be saved by adjusting the water distribution ratio of the second cooling zone in the process of solidification and heat transfer. Appropriate increase of the casting speed is beneficial to the energy saving in the heating process of the heating furnace and the hot rolling and laminar cooling processes Compared with laminar cooling method 1, the cooling method 2 under the same water condition decreased the final cooling temperature by 2.9 ℃. This cooling method is conducive to saving water under the same requirements of the final cooling temperature.