层流冷却过程带钢温度场影响因素模拟分析
Analysis on Factors Affecting Thermal Evolution of Strip During Runout Table Cooling
程杰锋, 刘正东, 唐广波
点击：4732次 下载：0次
作者单位：(钢铁研究总院 结构材料研究所, 北京 100081)
中文关键字：数值模拟； 层流冷却； 水流量； 喷嘴
英文关键字：numerical simulation; run-out table cooling; water flow rate; nozzle
中文摘要：采用数值模拟的方法，结合现场热连轧层流冷却生产线，开发了描述带钢层流冷却过程的综合模拟软件系统，利用所建立的软件系统模拟研究了冷却水温度、集管水流量、喷嘴直径和喷嘴排距等对冷却能力的影响。结果表明：降低冷却水温度，可有效提高带钢冷却能力；随着集管水流量的提高，冷却能力逐渐增加，当水流量增加到一定程度后，冷却能力趋于饱和，喷嘴直径对冷却能力的影响较小；在给定的工艺条件和设备布置条件下，随着喷嘴排距的增加，冷却能力有所提高。
英文摘要：With the help of the integrated process modeling system built for hot strip rolling, in which thermal, mechanical and metallurgical processes had been numerically coupled together, the effects of water temperature, water flow rate, nozzle diameter and distance between nozzle in rolling direction on cooling capacity were investigated. The results show that the cooling capacity increases with the decrease of water temperature and with the increase of water flow rate, when water flow rate increases to a certain value, the cooling capacity will reach saturation point and will not increase with the increase of water flow rate, the cooling capacity is less sensitive to nozzle diameter, for the given processing parameter and runout table layout, with the increase of distance between nozzles in rolling direction, the cooling capacity has a tendency to increase.