摘要
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。
Numerical calculations of the continuous solidification heat transfer process, the heating process in the roller hearth reheating furnace, the hot rolling process and the laminar cooling process of the thin slab were carried out by taking the thin slab continuous casting and rolling process as research object. The temperature field distributions of the thin slab for the four processes were obtained. The results showed that the consumed water in the laminar cooling process will be reduced by adjusting the water flow rate distribution in the secondary cooling zone of solidification heat transfer process. The consumed fuel of the reheating furnace will be saved by properly increasing the casting speed, and the strip surface temperatures of the hot rolling process and the laminar cooling process are increased. For the same water flow rate, compared the first mode of the laminar cooling process with the second mode, the final cooling temperature was decreased by 2. 9 ℃, and the cooling water dosage was reduced for the same requirement of final cooling temperature.
出处
《钢铁研究》
CAS
2015年第4期23-27,共5页
Research on Iron and Steel
基金
国家重点基础研究发展计划(973)项目(2012CB720405)
关键词
连铸连轧
薄板坯
流程分析
广义热力学优化
continuous casting and rolling
thin slab
process analysis
generalizedthermodynamic optimization
