·522· 北京科技大学学报 第36卷 析表明：在较高频率（>0.05Hz),两种水口条件下 Univ Sci Technol Beijing,1999,21(6):530 液面波动的功率变化不大.但是，在低频率范围 (包燕平，朱建强，蒋伟，等薄板坯结晶器内卷渣现象的研 究.北京科技大学学报，1999,21(6)：530) (0.003~0.05Hz),凸底水口的液面波动变化的功 [11]Wang C.N,Wen L Y,Chen D F,et al.Effect of bottom struc- 率是凹底水口的大约10倍，所以凸底水口更易导致 ture of submerged entry nozzle on flow field and temperature field 结晶器保护渣的剪切卷入，这与水力学模型的结果 in continuous casting mold.Iron Steel,2010,45(1):37 一致.不同凹底井深对实际生产过程中的影响有待 (王翠娜，温良英，陈登福，等.SEN底部形状对结品器内钢 下一步的研究. 液流场和温度场的影响.钢铁，2010,45(1)：37) [12]Zhang Q Y,Wang S H,Wang L T,et al.Effect of bottom struc- 参考文献 ture of submerged nozzle on flow field and temperature field in [Kubota J,Okimoto K,Shirayama A,et al.Meniscus flow control continuous casting mold.Res Iron Steel,2005,33(1):17 in the mold by travelling magnetie field for high speed slab caster (张乔英，王书桓，王立涛，等.浸入式水口底部结构对板坯 //74th Steelmaking Conference Proceedings,Warrendale,1991: 结品器内钢液流场和温度场的影响.钢铁研究，2005,33 233 (1):17) Hakamura H,Kohira S,Kubota J,et al.Technology for produc- [13]Deng XX,Wang QQ,Qian L,et al.Water model optimization tion of high quality slab at high speed casting /75th Steelmaking of three-port submerged entry nozzle feeding a funnel-shaped thin Conference Proceedings,Toronto,1992:409 slab mold.Iron Steel,2012,47 (7):26 B3]Zhang L,Thomas BG.State of the art in evaluation and control of (邓小旋，王强强，钱龙，等.适合漏斗型薄板坯连铸结品器 steel cleanliness.ISIJ Int,2003,43 (3):271 的三孔水口的水模型优化.钢铁，2012,47(7)：26) 4]Wang X H,Wang X H,Zhang J M,et al.Water modeling study [14]Yuan Q,Thomas B G,Vanka S,et al.Study of transient flow on the meniscus dynamic distortion of molten steel level in a CSP and particle transport in continuous steel caster molds:Part I. thin slab casting mould.J Unir Sci Technol Beijing,2009,31 Fluid flow.Metall Mater Trans B,2004,35(4):685 (2):234 [15]Deng XX,Xiong X,Wang X H,et al.Water modeling study on (王现辉，王新华，张炯明，等.CSP结品器内钢液面动态失 submerged entry nozzles in continuous slab casting molds for high 稳现象的水模型实验.北京科技大学学报，2009,31(2)： speed casting.J Univ Sci Technol Beijing,2013,35(10):1304 234) (邓小旋，熊霄，王新华，等.高拉速板坯连铸结品器浸入式 5]Torres-Alonso E,Morales R D,Carcia-ernindez S,et al.Cyelic 水口的水模型研究.北京科技大学学报，2013,35(10)： turbulent instabilities in a thin slab mold:Part I.Physical mod- 1304) el.Metall Mater Trans B,2010,41 (3):583 [16] Zhang L F,Yang S,Cai K,et al.Investigation of fluid flow and [6]Lee GG,Thomas B G,Kim S H,et al.Microstructure near cor- steel cleanliness in the continuous casting strand.Metall Mater ners of continuous-cast steel slabs showing three-dimensional frozen Trans B,2007,38(1):63 meniscus and hooks.Acta Mater,2007,55(20):6705 [17]Chaudhary R,Lee GG,Thomas B G,et al.Transient mold flu- ]Sengupta J,Thomas BC,Shin HJ,et al.Mechanism of hook for- id flow with well-and mountain-bottom nozzles in continuous cast- mation in ultralow-carbon steel based on microscopy analysis and ing of steel.Metall Mater Trans B,2008,39(6):870 thermal-stress modeling.Iron Steel Technol,2007,4(7):13 8] Miranda R,Barron M A,Barreto J,et al.Experimental and nu- 8]Gupta D,Lahiri A K.Water modeling study of the jet characteris- merical analysis of the free surface in a water model of a slab con- tics in a continuous-casting mold.Steel Res,1992,63(5):201 tinuous casting mold.IS/J Int,2005,45(11):1626 9]Bai H,Thomas B G.Turbulent flow of liquid steel and argon bub- [19]Lawson N J,Davidson M R.Oscillatory flow in a physical model bles in slidegate tundish nozzles:Part II.Effect of operation con- of a thin slab casting mould with a bifurcated submerged entry ditions and nozzle design.Metall Mater Trans B,2001,32 (2): nozzle.J Fluids Eng,2002,124 (2):535 269 20]Thomas BG,Yuan Q,Sivaramakrishnan S,et al.Comparison of [10]Bao Y P,Zhu JQ.Jiang W,et al.Water modeling research on four methods to evaluate fluid velocities in a continuous slab cast- slag-entrapment in the mould of thin slab continuous caster.J ing mold..1SJ1mt,2001,41(10):1262北 京 科 技 大 学 学 报 第 36 卷 析表明: 在较高频率( ＞ 0. 05 Hz) ，两种水口条件下 液面波动的功率变化不大． 但是，在低频率范围 ( 0. 003 ～ 0. 05 Hz) ，凸底水口的液面波动变化的功 率是凹底水口的大约 10 倍，所以凸底水口更易导致 结晶器保护渣的剪切卷入，这与水力学模型的结果 一致． 不同凹底井深对实际生产过程中的影响有待 下一步的研究． 参 考 文 献 ［1］ Kubota J，Okimoto K，Shirayama A，et al． Meniscus flow control in the mold by travelling magnetic field for high speed slab caster / / 74th Steelmaking Conference Proceedings，Warrendale，1991: 233 ［2］ Hakamura H，Kohira S，Kubota J，et al． Technology for produc￾tion of high quality slab at high speed casting / / 75th Steelmaking Conference Proceedings，Toronto，1992: 409 ［3］ Zhang L，Thomas B G． State of the art in evaluation and control of steel cleanliness． ISIJ Int，2003，43( 3) : 271 ［4］ Wang X H，Wang X H，Zhang J M，et al． Water modeling study on the meniscus dynamic distortion of molten steel level in a CSP thin slab casting mould． J Univ Sci Technol Beijing，2009，31 ( 2) : 234 ( 王现辉，王新华，张炯明，等． CSP 结晶器内钢液面动态失 稳现象的水模型实验． 北京科技大学学 报，2009，31 ( 2 ) : 234) ［5］ Torres-Alonso E，Morales Ｒ D，García-Hernndez S，et al． Cyclic turbulent instabilities in a thin slab mold: Part Ⅰ． Physical mod￾el． Metall Mater Trans B，2010，41( 3) : 583 ［6］ Lee G G，Thomas B G，Kim S H，et al． Microstructure near cor￾ners of continuous-cast steel slabs showing three-dimensional frozen meniscus and hooks． Acta Mater，2007，55( 20) : 6705 ［7］ Sengupta J，Thomas B G，Shin H J，et al． Mechanism of hook for￾mation in ultralow-carbon steel based on microscopy analysis and thermal-stress modeling． Iron Steel Technol，2007，4( 7) : 13 ［8］ Gupta D，Lahiri A K． Water modeling study of the jet characteris￾tics in a continuous-casting mold． Steel Ｒes，1992，63( 5) : 201 ［9］ Bai H，Thomas B G． Turbulent flow of liquid steel and argon bub￾bles in slide-gate tundish nozzles: Part Ⅱ． Effect of operation con￾ditions and nozzle design． Metall Mater Trans B，2001，32( 2) : 269 ［10］ Bao Y P，Zhu J Q，Jiang W，et al． Water modeling research on slag-entrapment in the mould of thin slab continuous caster． J Univ Sci Technol Beijing，1999，21( 6) : 530 ( 包燕平，朱建强，蒋伟，等． 薄板坯结晶器内卷渣现象的研 究． 北京科技大学学报，1999，21( 6) : 530) ［11］ Wang C N，Wen L Y，Chen D F，et al． Effect of bottom struc￾ture of submerged entry nozzle on flow field and temperature field in continuous casting mold． Iron Steel，2010，45( 1) : 37 ( 王翠娜，温良英，陈登福，等． SEN 底部形状对结晶器内钢 液流场和温度场的影响． 钢铁，2010，45( 1) : 37) ［12］ Zhang Q Y，Wang S H，Wang L T，et al． Effect of bottom struc￾ture of submerged nozzle on flow field and temperature field in continuous casting mold． Ｒes Iron Steel，2005，33( 1) : 17 ( 张乔英，王书桓，王立涛，等． 浸入式水口底部结构对板坯 结晶器内钢液流场和温度场的影响． 钢铁研究，2005，33 ( 1) : 17) ［13］ Deng X X，Wang Q Q，Qian L，et al． Water model optimization of three-port submerged entry nozzle feeding a funnel-shaped thin slab mold． Iron Steel，2012，47( 7) : 26 ( 邓小旋，王强强，钱龙，等． 适合漏斗型薄板坯连铸结晶器 的三孔水口的水模型优化． 钢铁，2012，47( 7) : 26) ［14］ Yuan Q，Thomas B G，Vanka S，et al． Study of transient flow and particle transport in continuous steel caster molds: Part Ⅰ． Fluid flow． Metall Mater Trans B，2004，35( 4) : 685 ［15］ Deng X X，Xiong X，Wang X H，et al． Water modeling study on submerged entry nozzles in continuous slab casting molds for high speed casting． J Univ Sci Technol Beijing，2013，35( 10) : 1304 ( 邓小旋，熊霄，王新华，等． 高拉速板坯连铸结晶器浸入式 水口的水模型研究． 北京科技大学学报，2013，35 ( 10 ) : 1304) ［16］ Zhang L F，Yang S，Cai K，et al． Investigation of fluid flow and steel cleanliness in the continuous casting strand． Metall Mater Trans B，2007，38( 1) : 63 ［17］ Chaudhary Ｒ，Lee G G，Thomas B G，et al． Transient mold flu￾id flow with well-and mountain-bottom nozzles in continuous cast￾ing of steel． Metall Mater Trans B，2008，39( 6) : 870 ［18］ Miranda Ｒ，Barron M A，Barreto J，et al． Experimental and nu￾merical analysis of the free surface in a water model of a slab con￾tinuous casting mold． ISIJ Int，2005，45( 11) : 1626 ［19］ Lawson N J，Davidson M Ｒ． Oscillatory flow in a physical model of a thin slab casting mould with a bifurcated submerged entry nozzle． J Fluids Eng，2002，124( 2) : 535 ［20］ Thomas B G，Yuan Q，Sivaramakrishnan S，et al． Comparison of four methods to evaluate fluid velocities in a continuous slab cast￾ing mold． ISIJ Int，2001，41( 10) : 1262 ·522·