热送热装过程大板坯传热数值模拟研究  

Study on numerical simulation for heat transfer of slab during hot transfering and hot charging

作　　者：朱正海[1] 仇圣桃[1] 廖鹏[1,2] 夏文勇[2] 

机构地区：[1]钢铁研究总院连铸中心,北京100081 [2]新余钢铁有限责任公司,江西新余338001

出　　处：《炼钢》2009年第5期43-47,共5页Steelmaking

基　　金：国家科技支撑计划资助项目(2006BAE03A)

摘　　要：对热送热装过程中典型的大板坯温度变化建立了数学模型并分析了计算结果。研究表明：辊道输送过程热送温度对铸坯冷却速率影响较小；保温坑内堆垛的铸坯温度分布较均匀，冷却速率较慢，在8．3～9．0K／h之间；堆垛空冷铸坯的主要冷却速率为11．3～18．6K／h；在加热过程热装温度不同可使铸坯内外形成不同的热履历。对不同热送热装工艺过程中铸坯的温度变化规律进行了模拟，为优化界面技术提供了依据。A mathematical model for the temperature changes of the typical slab in the process of hot transfering and hot charging has been established and the calculated resuits analyzed as well. The results of the study show that the effect of temperature change on the cooling rate of the slab is of insignificance in the process of conveying on the roll table, the temperature distribution of the slabs stockpiled in the soaking pit is more uniform and the cooling of the slab is slower （in the range of 8.3-9.0 K/h） ; the primary cooling rate of the stockpiled cooling slab is 11.3-18.6 K/h; and in the reheating process different hot charging temperature could very possibly bring about different thermal history for the inside and outside of a slab. The law of temperature changes of slabs in various hot transfering and hot charging processes has been simulated in order to provide more reliable referrence for optimization of the interface technology.

关 键 词：连铸-热轧区段 界面 热送热装 温度 

分 类 号：TF777.1[冶金工程—钢铁冶金]