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Key technologies of efficient deep decarburization and synergistic deoxidation during RH refining |
LIU Jianhua, YUAN Baohui, HE Yang, YANG Xiaodong, ZHANG Shuo |
National Engineering Research Center for Advanced Rolling and Intelligent Manufacturing, University of Science and Technology Beijing, Beijing 100083, China |
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Abstract Focusing on the objective of efficient deep decarburization and synergistic deoxidation for IF steel production during RH refining, the feasibility and strategies of RH decarburization and synergistic deoxidation are analyzed based on the carbon-oxygen thermodynamics during RH refining. The efficient decarburization strategies at different decarburization stages are determined according to the kinetics of decarburization reaction. The synergistic technologies of efficient decarburization and oxygen control, such as RH forced decarburization, and oxygen blowing flow rate and lance position control are analyzed. Meanwhile, the key technologies of RH efficient decarburization, such as vacuum pressure drop control, circulation flow rate optimization, and enhanced decarburization by argon blowing inside the vacuum chamber, and the key technologies of oxygen control, such as oxygen content control at the end of RH decarburization, and top slag oxidability control are researched. A synergistic strategy of efficient deep decarburization and deoxidation during RH refining through the integrated application of the above technologies is further proposed.
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Received: 18 May 2023
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[1] |
王畅,于洋,倪有金,等. IF钢轿车外板表面短线缺陷形成机理及改进措施[J]. 中国冶金,2022,32(10):97.
|
[2] |
张敏,曾建华,李平凡,等. 高品质IF钢碳含量控制关键技术研究[J]. 铸造技术,2019,40(6):609.
|
[3] |
ZHANG L,THOMAS B G,WANG X,et al. Evaluation and control of steel cleanliness-review[C]//85th Steelmaking Conference Proceedings. Warrendale:Iron and Steel Society,2002:431.
|
[4] |
HIRASHIMA N,NISHIHANA R,TAKASAKI Y,et al. Development of a process for producing extremely low carbon steel at Nippon Steel,Yawata Works[J]. Revue de Métallurgie,2000,97(3):309.
|
[5] |
安超,黄财德,单伟,等. 首钢京唐 IF 钢生产工艺开发实践[J]. 炼钢,2019,35(6):52.
|
[6] |
胡晓光,付尚红,李应江. 超低碳钢高效脱碳工艺探索[J]. 金属材料与冶金工程,2020,48(4):38.
|
[7] |
刘凤刚. 迁钢IF钢生产工艺研究[D]. 北京:北京科技大学,2012.
|
[8] |
BURTY M,LOUIS C,DUNAND P,et al. Methodology of steel cleanliness assessment[J]. Revue de Métallurgie,2000,97(6):775.
|
[9] |
DENG X,JI C,ZHU G,et al. Quantitative evaluations of surface cleanliness in IF steel slabs at unsteady casting[J]. Metallurgical and Materials Transactions B,2019,50:1974.
|
[10] |
李玉娣,江中块. IF钢非稳态连铸坯洁净度分析[J]. 连铸,2022(2):89.
|
[11] |
TAKAHASHI M,MATSUMOTO H,SAITO T. Mechanism of decarburization in RH degasser[J]. ISIJ International,1995,35(12):1452.
|
[12] |
WANG M,BAO Y,CUI H,et al. The composition and morphology evolution of oxide inclusions in Ti-bearing ultra low-carbon steel melt refined in the RH process[J]. ISIJ International,2010,50(11):1606.
|
[13] |
李怡宏. RH快速脱碳技术及环流反应器内流体行为研究[D]. 北京:北京科技大学,2015.
|
[14] |
王敏,包燕平,杨荃. 钛合金化过程对钢液洁净度的影响[J]. 北京科技大学学报,2013,35(6):725.
|
[15] |
苑鹏,李海波,罗衍昭,等. 超低碳钢顶渣氧化性对钢液洁净度的影响[J]. 工程科学学报,2016,38(12):1702.
|
[16] |
朱国森,邓小旋,季晨曦. RH精炼真空度对超低碳钢夹杂物去除的影响[J]. 钢铁,2022,57(11):99.
|
[17] |
魏光升,董建锋,朱荣,等. 钢包底吹对RH脱氢和夹杂物的影响[J]. 钢铁,2021,56(2):63.
|
[18] |
王昆鹏,王郢,谢伟,等. RH真空处理对高碳铬轴承钢尖晶石夹杂物的影响[J]. 钢铁,2023,58(1):108.
|
[19] |
HUANG Y,CHENG G,WANG Q,et al. Mathematical model for decarburization of ultra-low carbon steel during RH treatment[J]. Ironmaking and Steelmaking,2020,47(6):655.
|
[20] |
李崇巍,成国光,王新华,等. RH 吹氧操作对超低碳钢脱碳速率的影响[J]. 钢铁,2012,47(3):25.
|
[21] |
YUAN B,HE Y,LIU J,et al. Mathematical model for the forced oxygen blowing decarburization process of ultra-low carbon steel during RH treatment[J]. Metallurgical Research and Technology,2022,119(4):415.
|
[22] |
KUNITAKE O,IMAI T,MUKAWA S,et al. High speed decarburization by modernized RH-OB and new decarburization technology under reduce pressure by CAS-OB[C]//2001 Steelmaking Conference Proceedings. Baltimore:Iron and Steel Society,2001:625.
|
[23] |
陈俊锋,田志红,景财良,等. 首钢京唐300 t RH快速深脱碳工艺技术[J]. 炼钢,2015,31(4):16.
|
[24] |
朱国森,刘建辉,李明,等. 首钢迁钢公司炉外精炼技术进步[C]//2009年全国炉外精炼生产技术交流研讨会文集. 太原:中国金属学会,2009:154.
|
[25] |
LING H,ZHANG L. Investigation on the fluid flow and decarburization process in the RH process[J]. Metallurgical and Materials Transactions B,2018,49:2709.
|
[26] |
ISHIZUKA H,NISHIKAWA H,ASAHO R,et al. Improvement of steelmaking technology for production of ultra low carbon steel at No.3 steelmaking shop in Chiba Works[J]. Revue de Métallurgie,1991,88(3):249.
|
[27] |
KISHIMOTO Y,SAITO N. Development and prospect of combined blowing converter in Japan[J]. Tetsu-To-Hagane,2014,100(4):445.
|
[28] |
FUKUDA Y,ONOYAMA S,IMAI T,et al. Development of high-grade steel manufacturing technology for mass production at Nagoya works[J]. Nippon Steel Technical Report,2013,104:90.
|
[29] |
IWASAKI M,MATSUO M. Change and development of steel-making technology[J]. Nippon Steel Technical Report,2011,391:88.
|
[30] |
JUNGREITHMEIER A,PISSENBERGER E,BURGSTALLER K. Production of ULC IF steel grades at Voest-Alpine Stahl GmbH[J]. Iron and Steel Technology,2004,1(4):41.
|
[31] |
HAHN F J,HAASTERT H P,BADING W,et al. Application of the RH process to the production of ultra-low-carbon steels at Thyssen Stahl AG[J]. Iron and Steelmaker,1990,17(3):43.
|
[32] |
DITTRICH R,TEMBERGEN D,LIEBIG H. Installation of a second 265 t RH degasser at the Beeckerwerth steel plant of TKS[J]. Metallurgical Research and Technology,2003,100(4):387.
|
[33] |
KANG S C,KIM K C,PARK J M,et al. Improvement of decarburization capacity of RH degasser by revamping at Kwangyang Works,POSCO[C]//83rd Steelmaking Conference Proceedings. Warrendale:Iron and Steel Society,2000:99.
|
[34] |
LEE K K,PARK J M,CHUNG J Y,et al. The secondary refining technologies for improving the cleanliness of ultra-low carbon steel at Kwangyang Works[J]. Revue de Métallurgie,1996,93(4):503.
|
[35] |
崔健,郑贻裕,朱立新. 宝钢纯净钢生产技术进步[J]. 中国冶金,2004,14(7):1.
|
[36] |
侯安贵,蒋晓放. 宝钢炼钢的技术进步与展望[J]. 宝钢技术,2008(2):1.
|
[37] |
刘柏松,李本海,朱国森,等. 常规RH和RH-TOP工艺精炼IF钢试验研究[J]. 钢铁,2010,45(8):33.
|
[38] |
孙群,林洋,李伟东. RH精炼脱碳与夹杂物控制[J]. 北京科技大学学报,2011,33(增刊1):142.
|
[39] |
朱伦才,王泉. 超低碳洁净IF钢生产实践[C]//2012年全国炼钢-连铸生产技术会论文集. 重庆:中国金属学会,2012:244.
|
[40] |
李大明,张文辉,林立平,等. RH 顶吹氧技术在武钢第二炼钢厂的应用[J]. 炼钢,2007,23(6):5.
|
[41] |
杨秀. RH-KTB 深脱碳方法研究[D]. 武汉:武汉科技大学,2004.
|
[42] |
邓伟,杨新泉,李慕耘,等. 超低碳钢RH真空深脱碳模式的优化[J]. 武汉工程职业技术学院学报,2022,34(4):15.
|
[43] |
宋满堂,李明光,于华财. 超低碳钢薄板坯连铸钢水精炼工艺的研究[J]. 炼钢,2009,25(3):8.
|
[44] |
王子铮. 超低碳钢RH脱碳工艺优化[J]. 本钢技术,2012(2):13.
|
[45] |
甘绍君,王仕华,肖力峰. 涟钢一炼轧厂超低碳钢的生产优化实践[J]. 企业技术开发,2012,31(28):34.
|
[46] |
曾建华,吴国荣,陈永,等. 减少冷轧IF钢表面条痕缺陷的生产实践[J]. 钢铁,2010,45(9):44.
|
[47] |
袁保辉,刘建华,周海龙,等. RH强制脱碳与自然脱碳工艺生产 IF 钢精炼效果分析[J]. 工程科学学报,2021,43(8):1107.
|
[48] |
申志鹏,刘建华,袁保辉,等. RH-KTB氧枪射流特性的数值模拟[J]. 江西冶金,2021,41(2):1.
|
[49] |
申志鹏. 超音速氧气射流对RH熔池冲击的数值模拟[D]. 北京:北京科技大学,2020.
|
[50] |
KUWABARA T,UMEZAWA K,MORI K,et al. Investigation of decarburization behavior in RH-reactor and its operation improvement[J]. Transactions of the Iron and Steel Institute of Japan,1988,28(4):305.
|
[51] |
袁保辉,刘建华,周海龙,等. 高海拔RH精炼装置真空脱碳工艺优化研究[J]. 炼钢,2020,36(4):31.
|
[52] |
刘柏松. RH-MFB脱碳过程模型与工艺优化[D]. 唐山:河北理工大学,2005.
|
[53] |
谢建府. 涟钢210 t RH炉生产超低碳钢的工艺优化[J]. 涟钢科技与管理,2012(2):11.
|
[54] |
陈永金. RH-MFB工艺优化研究[D]. 武汉:武汉科技大学,2009.
|
[55] |
程刚,王永强. 莱钢130 t RH冶炼超低碳钢工艺实践[J]. 莱钢科技,2017(4):1.
|
[56] |
张建伟. 超低碳钢在本钢 RH 精炼炉的生产实践[J]. 本钢技术,2013(2):12.
|
[57] |
PARK Y G,YI K W,AHN S B. The effect of operating parameters and dimensions of the RH system on melt circulation using numerical calculations[J]. ISIJ International,2001,41(5):403.
|
[58] |
KATO Y,KIRIHARA T,FUJII T. Analysis of decarburization reaction in RH degasser and its application to ultra-low carbon steel production[J]. Kawasaki Steel Technical Report,1995,32:25.
|
[59] |
赵云珠. 本钢RH生产超低碳钢的实践[J]. 鞍钢技术,2008 (2):49.
|
[60] |
贺庆,刘浏,庄辉,等. RH生产超低碳钢的脱碳速率及工艺优化[J]. 钢铁研究学报,2013,25(2):26.
|
[61] |
INOUE S,FURUNO Y,USUI T,et al. Acceleration of decarburization in RH vacuum degassing process[J]. ISIJ International,1992,32(1):120.
|
[62] |
LYONS C,KAUSHIK P. Inclusion characterization of titanium stabilized ultra low carbon steels:Impact of oxygen activity before deoxidation[J]. Steel Research International,2011,82(12):1394.
|
[63] |
WAKOH M,SANO N. Behavior of alumina inclusions just after deoxidation[J]. ISIJ International,2007,47(5):627.
|
[64] |
YUAN B,LIU J,ZENG J,et al. Evolution of inclusions and cleanliness in Ti-bearing IF steel produced via the BOF-LF-RH-CC process[J]. Metals,2022,12(3):434.
|
[65] |
安超,李辉,张普,等. IF钢RH脱碳结束氧含量对钢液洁净度的影响[J]. 炼钢,2023,39(2):24.
|
[66] |
YAMAGUCHI K,KISHIMOTO Y,SAKURAYA T,et al. Effect of refining conditions for ultra low carbon steel on decarburization reaction in RH degasser[J]. ISIJ International,1992,32(1):126.
|
[67] |
ZHANG L,THOMAS B G. State of the art in evaluation and control of steel cleanliness[J]. ISIJ International,2003,43(3):271.
|
|
|
|