摘要
采用数值模拟的方法,建立了描述某厂结晶器内钢液流动的数学模型;用有限体积法求解,研究了结晶器内的钢液流动行为,详细分析了结晶器浸入式水口(SEN)插入深度、侧孔倾角和拉速对结晶器内钢液流场的影响。得出了适合该厂连铸工艺条件的浸入式水口形式和拉坯速度,即水口合理的出口倾角应为向下15°左右;在水口结构一定条件下,水口插入深度140～170mm比较适宜;合理的拉速应控制在1.4～2.0m/min。
Using numerical simulation method, taking slab continuous casting in a factory as research object, the mathematical models of molten steel flow field in a continuous casting mould were established; the flow behavior of molten steel in the mould was studied using finite volume method, the influence of the immersion depth of submerged entry nozzle （SEN）, the outlet inclination angle of SEN and the casting speed on the flow field of molten steel in the mold were analyzed. The suitable parameters of SEN and the casting speed under continuous casting technical conditions of the factory are obtained, that is the optimum outlet angle -15°, the advisable immersed depth 140-170 mm and the casting speed 1.4 -2.0 m/min.
出处
《热加工工艺》
CSCD
北大核心
2011年第7期69-72,共4页
Hot Working Technology
关键词
板坯连铸
结晶器
流场
数值模拟
slab continuous casting
mould
flow field
numerical simulation
