第4期 金利玲等：帘线钢Ca0SiO2一zOg一Mn0系夹杂物的成分控制 .381. iron components and the deoxidation products resulting from Mn [9]Elliott J F,Gleiser M,Ramakrishna V.Thermochemistry for Si-Al alloys.Tetsu to-Hagane.1977.63(9):1494 Steelmaking.London:Sddision Wesley Pub Co.1963:22 [5]Kang Y B.Lee H G.Inclusions chemistry for Mn/Si deoxidized [10]Ohta H.Sutto H.Activities in MnO SiO2 Al203 slags and de- steels:thermodynamic predictions and experimental confirma- oxidation equilibria of Mn and Si.Metall Mater Trans B.1996. tions.lSlJ1nt,2004,44(6):1006 27B:263 [6]Kang Y B.Jung I H.Sergei A,et al.Phase equilibria and ther- [11]Bernard G,Ribound P V,Urbain G.Oxide inclusions plastici- modynamic properties of the CaO-MnO-Al203-SiOz system by ty.Rev Metall CIT.1981.78(5):421 eritical evaluation,modeling and experiment.ISIJ Int.2004.44 [12]Malm S.On the precipitation of slag inclusions during solidifica (6):975 tion of high carbon steel deoxidized with aluminium and mish [7]Sifworth G K.Elliott J F.The thermodynamics of liquid dilute metal.Scand J Metall.1976,15:248 iron alloys.Met Sci.1974,18:298 [13]王立峰，卓晓军，张炯明，等.冶金过程中帘线钢夹杂物成分 [8]Gaye H.Gatellier C.Nadif M.et al.Slag metal reactions and 控制.北京科技大学学报，2003,25(4)：308 control of the residual inclusions composition in secondary steel- [14]王立峰.Si一Mn合金脱氧高碳钢中非金属变形夹杂物的研究 making.Rev Metall Cah Inf Tech.1987,84(11):759 [学位论文】北京：北京科技大学，2004：26 Composition control of a CaO SiO2 Al203 MnO system in tire cord steel JIN Liling,WANG Haitao,XU Zhongbo,WANG Fuming Metallurgical and Ecological Engineering School,University of Seience and Technology Beijing.Beijing 100083.China ABSTRACI Based on of the activity data of each component of a CaO SiO2 Al203 MnO system calculated by thermodynamic software FactSage,the formation condition of plastic inclusions in the CaO SiO2 Al2O3 MnO system was discussed by thermodynamic calculation.Comparison with some experimental data proved that this proposed method was feasible.It is shown that in order to acquire deformable inclusions in tire cord steel,the dissolved aluminum should be controlled less than 0.0003,and the dissolved oxygen in liquid steel must be controlled in the range of 0.002.006. KEY WORDS tire cord steel;quaternary system;inclusion control;thermodynamic calculation;activityiron components and the deoxidation products resulting from Mn－ Si－Al alloys．Tetsu－to－Hagane‚1977‚63（9）：1494 ［5］ Kang Y B‚Lee H G．Inclusions chemistry for Mn／Si deoxidized steels：thermodynamic predictions and experimental confirma￾tions．ISIJ Int‚2004‚44（6）：1006 ［6］ Kang Y B‚Jung I H‚Sergei A‚et al．Phase equilibria and ther￾modynamic properties of the CaO－MnO－Al2O3－SiO2 system by critical evaluation‚modeling and experiment．ISIJ Int‚2004‚44 （6）：975 ［7］ Sifworth G K‚Elliott J F．The thermodynamics of liquid dilute iron alloys．Met Sci‚1974‚18：298 ［8］ Gaye H‚Gatellier C‚Nadif M‚et al．Slag-metal reactions and control of the residual inclusions composition in secondary steel￾making．Rev Metall Cah Inf Tech‚1987‚84（11）：759 ［9］ Elliott J F‚Gleiser M‚Ramakrishna V．Thermochemistry for Steelmaking．London：Sddision Wesley Pub Co‚1963：22 ［10］ Ohta H‚Sutto H．Activities in MnO－SiO2－Al2O3slags and de￾oxidation equilibria of Mn and Si．Metall Mater Trans B‚1996‚ 27B：263 ［11］ Bernard G‚Ribound P V‚Urbain G．Oxide inclusions plastici￾ty．Rev Metall CIT‚1981‚78（5）：421 ［12］ Malm S．On the precipitation of slag inclusions during solidifica￾tion of high-carbon steel deoxidized with aluminium and mish metal．Scand J Metall‚1976‚15：248 ［13］ 王立峰‚卓晓军‚张炯明‚等．冶金过程中帘线钢夹杂物成分 控制．北京科技大学学报‚2003‚25（4）：308 ［14］ 王立峰．Si－Mn 合金脱氧高碳钢中非金属变形夹杂物的研究 ［学位论文］．北京：北京科技大学‚2004：26 Composition control of a CaO－SiO2－Al2O3－MnO system in tire cord steel JIN L iling‚WA NG Haitao‚XU Zhongbo‚WA NG Fuming Metallurgical and Ecological Engineering School‚University of Science and Technology Beijing‚Beijing100083‚China ABSTRACT Based on of the activity data of each component of a CaO－SiO2－Al2O3－MnO system calculated by thermodynamic software FactSage‚the formation condition of plastic inclusions in the CaO－SiO2－Al2O3－MnO system was discussed by thermodynamic calculation．Comparison with some experimental data proved that this proposed method was feasible．It is shown that in order to acquire deformable inclusions in tire cord steel‚the dissolved aluminum should be controlled less than0∙0003％‚and the dissolved oxygen in liquid steel must be controlled in the range of 0∙002％～0∙006％． KEY WORDS tire cord steel；quaternary system；inclusion control；thermodynamic calculation；activity 第4期 金利玲等： 帘线钢 CaO－SiO2－Al2O3－MnO 系夹杂物的成分控制 ·381·