方坯连铸结晶器三维传热模拟
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摘要
采用ANSYS有限元软件,以方坯连铸结晶器为研究对象,基于节点温度传递方法、利用ANSYS接触分析技术建立方坯连铸结晶器三维瞬态传热有限元模型,分析了结晶器内铸坯和结晶器铜壁的三维温度场及结晶器内铸坯坯壳分布规律。结果表明,弯月面区域铜壁温度较低,上口接近水缝内冷却水温度;弯月面下50 mm处结晶器铜壁温度最高,达到157℃;模型计算所得结晶器铜管高温区域形状与实际生产中下线铜管高温过烧区域形状基本一致;铸坯表面偏离角部30 mm处角部影响消失,铸坯表面温度趋于一致。
Using the finite element software ANSYS,the squire billet continuous casting mold as the research object,based on the node temperature transfer method,using the ANSYS contact analysis technology to establish billet continuous casting crystallizer three-dimensional finite element model of the transient heat transfer,the distribution of the blank shell and the mould was analyzed.The results show that the copper wall temperature in the curved surface area is lower,and the upper mouth is close to the temperature of cooling water in the water seam.Meniscus under 50 mm copper mould wall temperatures is the highest,up to 157 ℃;the shape of the copper tube is basically the same as that of the copper tube in the actual production.The surface of casting billet is removed from the angular part 30 mm,and the surface temperature of the slab is uniform.
Using the finite element software ANSYS,the squire billet continuous casting mold as the research object,based on the node temperature transfer method,using the ANSYS contact analysis technology to establish billet continuous casting crystallizer three-dimensional finite element model of the transient heat transfer,the distribution of the blank shell and the mould was analyzed.The results show that the copper wall temperature in the curved surface area is lower,and the upper mouth is close to the temperature of cooling water in the water seam.Meniscus under 50 mm copper mould wall temperatures is the highest,up to 157 ℃;the shape of the copper tube is basically the same as that of the copper tube in the actual production.The surface of casting billet is removed from the angular part 30 mm,and the surface temperature of the slab is uniform.
引文
[1]朱立光,李琨,李曜光,等.板坯连铸结晶器铜板传热行为[J].铸造技术,2016,37(04):706-709.
[2]王卫华.倒角结晶器二维有限元模型计算及应用//中国金属学会炼钢分会.第十七届(2013)年全国炼钢学术会议论文集(A卷)[C].中国金属学会炼钢分会:2013:7.
[3]王宇峰,张立峰,梅峰,等.宝钢3号板坯连铸结晶器传热行为的模拟研究[J].钢铁,2008(04):35-42.
[4]孙开明,付继成,李京社,等.圆坯连铸凝固传热数学模型及应用[J].钢管,2009,38(3):23.
[5]张炯明,张立,杨会涛,等.板坯结晶器钢水凝固的数值模拟[J].北京科技大学报,2004,26(2):130.
[6]Kelly J E,Michael K P,Thomas B G.Initial Development of Thermal and Stress Fields in Continuously Casting Billets[J].Metallurgical and Material Transactions A,1998,19(10):2589.
[7]邹达基,邹宗树.关于连铸凝固传热数值模拟中钢液有效导热系数的探讨[J].连铸,2009(6):5.
[8]曹立军.唐钢FTSC薄板坯连铸结晶器传热研究与保护渣性能优化[D].唐山:河北理工大学,2006.
[9]甄成国,麻永林,邢淑清,等.基于凝固相转变影响的结晶器内热力耦合分析[J].钢铁,2016,51(2):55.
[10]孙海波,李烈军,程晓文,等.连铸凝固传热时液相有效导热系数的定量化[J].钢铁研究学报,2015,27(5):35.
[11]王胜东,钱宏智,詹美珠,等.高拉速下凝固进程的试验测量与模型预测[J].钢铁,2016,51(3):49.
[12]胡硕,王朋飞,朱立光,等.漏斗形薄板坯结晶器内铸坯传热分析[J].钢铁,2017(02):33-37.
[2]王卫华.倒角结晶器二维有限元模型计算及应用//中国金属学会炼钢分会.第十七届(2013)年全国炼钢学术会议论文集(A卷)[C].中国金属学会炼钢分会:2013:7.
[3]王宇峰,张立峰,梅峰,等.宝钢3号板坯连铸结晶器传热行为的模拟研究[J].钢铁,2008(04):35-42.
[4]孙开明,付继成,李京社,等.圆坯连铸凝固传热数学模型及应用[J].钢管,2009,38(3):23.
[5]张炯明,张立,杨会涛,等.板坯结晶器钢水凝固的数值模拟[J].北京科技大学报,2004,26(2):130.
[6]Kelly J E,Michael K P,Thomas B G.Initial Development of Thermal and Stress Fields in Continuously Casting Billets[J].Metallurgical and Material Transactions A,1998,19(10):2589.
[7]邹达基,邹宗树.关于连铸凝固传热数值模拟中钢液有效导热系数的探讨[J].连铸,2009(6):5.
[8]曹立军.唐钢FTSC薄板坯连铸结晶器传热研究与保护渣性能优化[D].唐山:河北理工大学,2006.
[9]甄成国,麻永林,邢淑清,等.基于凝固相转变影响的结晶器内热力耦合分析[J].钢铁,2016,51(2):55.
[10]孙海波,李烈军,程晓文,等.连铸凝固传热时液相有效导热系数的定量化[J].钢铁研究学报,2015,27(5):35.
[11]王胜东,钱宏智,詹美珠,等.高拉速下凝固进程的试验测量与模型预测[J].钢铁,2016,51(3):49.
[12]胡硕,王朋飞,朱立光,等.漏斗形薄板坯结晶器内铸坯传热分析[J].钢铁,2017(02):33-37.