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郝阳等:冶炼关键参数对于F钢轧材夹杂缺陷的影响 375 making,2006,22(3):22 ·吹氧量 一趋势线 (高文芳.冷轧薄板表面缺陷研究.炼钢,2006,22(3):22) Cui H,Wu H J,Yue F,et al.Surface defects of cold-rolled Ti- IF steel sheets due to non-metallic inclusions.J fron Steel Res Int, 2011,18(Suppl2):335 200 B]Zhu G S,Yu H X,Wang W J,et al.Study of surface defects of cold-rolled IF steel sheet.fron Steel,2004,39 (4)54 (朱国森,于会香,王万军,等.F钢冷轧板表面缺陷研究 钢铁.2004,39(4):54 4 Wang X H.Non-metallic inclusion control technology for high quality cold rolled steel sheets.fron Steel,2013,48(9):1 1550 1600 1650 RH进站温度℃ (王新华.高品质冷轧薄板钢中非金属夹杂物控制技术.钢 铁,2013,48(9):1) 图15吹氧量与RH进站温度关系 [5]Tian J.Research of Surface Defect in Cold-rolled Sheet Induced by Fig.15 Relationship between oxygen blow amount and RH pitted Inclusions [Dissertation].Wuhan:Wuhan University of Science temperature and Technology,2009 (田俊.冷轧板夹杂类表面缺陷研究[学位论文].武汉:武 60 汉科技大学,2009) 6 50 Zhang WW.Li X W,Lii C F.Surface sliver defect of cold-rolled IF steel sheet.J fron Steel Res,2009,21(7)59 40 (张维维,李晓伟,吕春风.F钢冷轧板表面条状缺陷.钢铁 36.1 344 研究学报.2009,21(7):59) Fang S F.Discussion on characteristic and forming reason of faint sliver defect in cold-rolled steel sheet.Iron Steel Vanadium Titani- um,2002,23(2):59 2 (方淑芳.冷轧板条痕缺陷的特征及形成原因探讨.钢铁钒 钛,2002,23(2):59) [8]Peng QC.Tian J,Yin H F,et al.Causes of linear defects on the surface of cold-rolled sheet:analysis and discussion.J Wuhan 8 9 10 11 12 月份 Unig Sci Technol,2009,32(1)15 (彭其春,田俊,尹会芳,等。冷轧板表面线状缺陷成因分析 图16出现夹杂缺陷炉次所占比例随月份变化情况 与探讨.武汉科技大学学报.2009,32(1):15) Fig.16 Change of the ratio of heat appearing inclusion defects in 6 9]Mivake T,Morishita M,Nakata H,et al.Influence of sulphur months content and molten steel flow on entrapment of bubbles to solid/ liquid interface.ISIJ Int,2006,46(12)1817 3结论 [10]Yu H X,Ji C X,Chen B,et al.Characteristics and evolution of inclusion induced surface defects of cold rolled IF sheet.lron (1)通过对F钢轧材夹杂缺陷的研究分析,发现 Steel Res Int,2015,22(Suppl 1)17 造成缺陷的主要夹杂物为脱氧过程产生的AL,0,其 Chen Y,Zeng J H,Wu G R.Control for surface faint-sliver de- 产生原因与治炼过程的工艺参数密切相关. fects in cold-rolled IF steel sheet.Ade Mater Res,2011,396- (2)通过对F钢治炼关键参数与冷轧板夹杂缺陷 398:1145 [12] Meng JS,Jiang M F,Zhu Y X.Practice for reducing surface in- 关系以及治炼参数间的相关性进行研究,在F钢治炼 clusions of IF steel for cold rolled strip.Iron Steel,2005,40 过程中应当将转炉终点温度控制在1695~1700℃,吹 (12):28 氧量不应超过250m3,静置时间控制在30~40min,加 (孟劲松,姜茂发,朱英雄.减少冷轧F钢表面夹杂物的生 铝前氧位不超过3.9×104.这些改善措施均有利于 产实践.钢铁,2005,40(12):28) 减少精炼过程中氧化铝夹杂产生,从而减少冷轧板出 13] Guo L B.The Defect Analysis for the Surficial Quality of the Cool- 现夹杂缺陷的概率. ing System based on Data Mining Technology [Dissertation]. (3)利用以上研究结果对现场F钢治炼工艺进行 Anhui:Anhui University of Technology,2012 (郭龙波.基于数据挖掘方法的冷轧表面质量缺陷分析[学 优化之后,轧材出现夹杂缺陷的炉次比例有一定降低. 位论文].安徽:安徽工业大学,2012) [14]Song J.Analysis on the Surface Defects of Hot Strips based on 参考文献 Data Mining Methods [Dissertation].Shanghai:Shanghai Jiao Gao W F.Research on surface defects of cold rolled sheet.Steel- Tong University,2008郝 阳等: 冶炼关键参数对于 IF 钢轧材夹杂缺陷的影响 图 15 吹氧量与 RH 进站温度关系 Fig. 15 Relationship between oxygen blow amount and RH pitted temperature 图 16 出现夹杂缺陷炉次所占比例随月份变化情况 Fig. 16 Change of the ratio of heat appearing inclusion defects in 6 months 3 结论 ( 1) 通过对 IF 钢轧材夹杂缺陷的研究分析,发现 造成缺陷的主要夹杂物为脱氧过程产生的 Al2 O3,其 产生原因与冶炼过程的工艺参数密切相关. ( 2) 通过对 IF 钢冶炼关键参数与冷轧板夹杂缺陷 关系以及冶炼参数间的相关性进行研究,在 IF 钢冶炼 过程中应当将转炉终点温度控制在 1695 ~ 1700 ℃,吹 氧量不应超过 250 m3 ,静置时间控制在 30 ~ 40 min,加 铝前氧位不超过 3. 9 × 10 - 4 . 这些改善措施均有利于 减少精炼过程中氧化铝夹杂产生,从而减少冷轧板出 现夹杂缺陷的概率. ( 3) 利用以上研究结果对现场 IF 钢冶炼工艺进行 优化之后,轧材出现夹杂缺陷的炉次比例有一定降低. 参 考 文 献 [1] Gao W F. Research on surface defects of cold rolled sheet. Steel￾making,2006,22( 3) : 22 ( 高文芳. 冷轧薄板表面缺陷研究. 炼钢,2006,22( 3) : 22) [2] Cui H,Wu H J,Yue F,et al. Surface defects of cold-rolled Ti-- IF steel sheets due to non-metallic inclusions. J Iron Steel Res Int, 2011,18( Suppl 2) : 335 [3] Zhu G S,Yu H X,Wang W J,et al. Study of surface defects of cold-rolled IF steel sheet. Iron Steel,2004,39( 4) : 54 ( 朱国森,于会香,王万军,等. IF 钢冷轧板表面缺陷研究. 钢铁. 2004,39( 4) : 54 [4] Wang X H. Non-metallic inclusion control technology for high quality cold rolled steel sheets. Iron Steel,2013,48( 9) : 1 ( 王新华. 高品质冷轧薄板钢中非金属夹杂物控制技术. 钢 铁,2013,48( 9) : 1) [5] Tian J. Research of Surface Defect in Cold-rolled Sheet Induced by Inclusions [Dissertation]. Wuhan: Wuhan University of Science and Technology,2009 ( 田俊. 冷轧板夹杂类表面缺陷研究 [学位论文]. 武汉: 武 汉科技大学,2009) [6] Zhang W W,Li X W,Lü C F. Surface sliver defect of cold-rolled IF steel sheet. J Iron Steel Res,2009,21( 7) : 59 ( 张维维,李晓伟,吕春风. IF 钢冷轧板表面条状缺陷. 钢铁 研究学报. 2009,21( 7) : 59) [7] Fang S F. Discussion on characteristic and forming reason of faint sliver defect in cold-rolled steel sheet. Iron Steel Vanadium Titani￾um,2002,23( 2) : 59 ( 方淑芳. 冷轧板条痕缺陷的特征及形成原因探讨. 钢铁钒 钛,2002,23( 2) : 59) [8] Peng Q C,Tian J,Yin H F,et al. Causes of linear defects on the surface of cold-rolled sheet: analysis and discussion. J Wuhan Univ Sci Technol,2009,32( 1) : 15 ( 彭其春,田俊,尹会芳,等. 冷轧板表面线状缺陷成因分析 与探讨. 武汉科技大学学报. 2009,32( 1) : 15) [9] Miyake T,Morishita M,Nakata H,et al. Influence of sulphur content and molten steel flow on entrapment of bubbles to solid / liquid interface. ISIJ Int,2006,46( 12) : 1817 [10] Yu H X,Ji C X,Chen B,et al. Characteristics and evolution of inclusion induced surface defects of cold rolled IF sheet. J Iron Steel Res Int,2015,22( Suppl 1) : 17 [11] Chen Y,Zeng J H,Wu G R. Control for surface faint-sliver de￾fects in cold-rolled IF steel sheet. Adv Mater Res,2011,396- 398: 1145 [12] Meng J S,Jiang M F,Zhu Y X. Practice for reducing surface in￾clusions of IF steel for cold rolled strip. Iron Steel,2005,40 ( 12) : 28 ( 孟劲松,姜茂发,朱英雄. 减少冷轧 IF 钢表面夹杂物的生 产实践. 钢铁,2005,40( 12) : 28) [13] Guo L B. The Defect Analysis for the Surficial Quality of the Cool￾ing System based on Data Mining Technology [Dissertation]. Anhui: Anhui University of Technology,2012 ( 郭龙波. 基于数据挖掘方法的冷轧表面质量缺陷分析[学 位论文]. 安徽: 安徽工业大学,2012) [14] Song J. Analysis on the Surface Defects of Hot Strips based on Data Mining Methods [Dissertation]. Shanghai: Shanghai Jiao Tong University,2008 · 573 ·
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