·1710· 工程科学学报，第38卷，第12期 swirling-flow submerged entry nozzles for slab casting.IS//Int, Al2O:-Si02-Fe0 and CaO-Al203-CaF2 -Fe0 slags.ISI/Int, 2010,50(5):721 1997,37(10):956 [19]Yasunaka H,Yamanaka R,Inoue T,et al.Pinhole and inclu- 2]Ehara T,Kurose Y,Fujimura T,et al.Mass production of high sion defects formed at the subsurface in ultra low carbon steel. quality if steel at Mizushima Works Serenty Ninth Conference Tetsu-to-Hagane,1995,81(5):529 of the Steelmaking Division of the Iron and Steel Society.Pitts- 20]Espejo V,Iwase M.A thermodynamie study of the system Cao+ burgh,1996:485 Al2 O3 +Fe,O at 1673 K.Metall Mater Trans B,1995,26(2) 23]Suda M,Suitou M,Hasunuma J.The advanced mass production 257 system of ultra low carbon steel at KSC's Mizushima Work / 21]Taniguchi Y,Morita K,Sano N.Activities of FeO in Cao- Steelmaking Conference Proceedings.Toronto,1992.75:229工程科学学报，第 38 卷，第 12 期 swirling-flow submerged entry nozzles for slab casting． ISIJ Int， 2010，50( 5) : 721 ［19］ Yasunaka H，Yamanaka Ｒ，Inoue T，et al． Pinhole and inclu￾sion defects formed at the subsurface in ultra low carbon steel． Tetsu-to-Hagane，1995，81( 5) : 529 ［20］ Espejo V，Iwase M． A thermodynamic study of the system CaO + Al2O3 + FexO at 1673 K． Metall Mater Trans B，1995，26( 2) : 257 ［21］ Taniguchi Y，Morita K，Sano N． Activities of FeO in CaO-- Al2O3 --SiO2 --FeO and CaO--Al2O3 --CaF2 --FeO slags． ISIJ Int， 1997，37( 10) : 956 ［22］ Ehara T，Kurose Y，Fujimura T，et al． Mass production of high quality if steel at Mizushima Works / / Seventy Ninth Conference of the Steelmaking Division of the Iron and Steel Society． Pitts￾burgh，1996: 485 ［23］ Suda M，Suitou M，Hasunuma J． The advanced mass production system of ultra low carbon steel at KSC’s Mizushima Work / / Steelmaking Conference Proceedings． Toronto，1992，75: 229 ·1710·