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Application of high-speed continuous casting technology for low carbon steel slab in Masteel |
DENG Yong1, YANG Li-bin2, WANG Cheng-yi2 |
1. No.4 Steelmaking and Rolling General Plant, Masteel, Ma'anshan 243000, Anhui, China; 2. Metallurgical Department, Central Iron and Steel Research Institute, Beijing 100081, China |
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Abstract In order to solve the slab quality problem under the condition of high casting speed in further, Masteel has carried out the research and development of high-speed continuous casting technology for low carbon steel slab. Through the use of high-efficiency continuous casting anti-sticking technology, high-efficiency and strong cooling mold control technology, low viscosity mold powder optimization control technology, nozzle clogging control technology, dynamic secondary cooling solidification control technology and other technical measures, the technical problems such as uneven solidification of billet shell, slag curling in mold and billet quality under the condition of high drawing speed are solved. The casting speed can be steadily increased to 1.8 m/min, and the casting time can be reduced by 2.5 min after the casting speed of low carbon steel with section 1 200 mm(thickness is 230 mm) is increased from 1.6 to 1.8 m/min. In addition, the average number of continuous casting heats can reach more than 6 heats. After the technical improvement, the casting cycle is effectively shortened and the production efficiency is improved.
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Received: 02 August 2021
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[1] |
周滨新, 张康晖, 马建超, 等. 70钢小方坯芯部质量优化[J].中国冶金, 2021, 31(1): 42.
|
[2] |
朱苗勇. 高拉速连铸过程传输行为特征及关键技术探析[J].钢铁, 2021, 56(7): 1
|
[4] |
朱立光, 袁志鹏, 肖鹏程, 等. 低碳钢薄板坯高速连铸保护渣研究与优化[J].钢铁, 2020, 55(11): 65.
|
[5] |
原禄春, 刘珂, 张家泉. 京唐2150 mm大型高效板坯铸机过程控制系统的优化应用[J].连铸, 2011(增刊1):452.
|
[6] |
李金柱. 首钢京唐公司高品质汽车板冶金工艺研究[D]. 北京:北京科技大学, 2018.
|
[7] |
陈永, 肖明富, 吴国荣, 等. 攀钢板坯连铸高效化技术研究[J].钢铁钒钛, 2009, 30(3):50.
|
[8] |
Lee G G, Shin H J, Kim S H, et al. Prediction and control of subsurface hooks in continuous cast ultra-low-carbon steel slabs[J].Ironmaking and Steelmaking, 2009, 36(1):39.
|
[9] |
王洪兴, 曹梅林, 刘志国. 结晶器内钢液面波动分析与控制[J].炼钢, 2012, 28(3):37.
|
[10] |
邓小旋, 潘宏伟, 季晨曦, 等. 常规低碳钢板坯的高速连铸工艺技术[J].钢铁, 2019, 54(8):70.
|
[11] |
阎朝红, 王克勇, 刘涌. 宝钢分公司4#连铸机提高板坯质量的措施[J].宝钢技术, 2008(1):13.
|
[12] |
汪洪峰, 宣守蓉. 梅钢高效高拉速板坯连铸的技术进步[J].梅山科技, 2007 (2):35.
|
[13] |
Suzuki M, Suzuki M, Nakada M. Perspectives of research on high-speed conventional slab continuous casting of carbon steels[J].ISIJ International, 2001, 41(7):670.
|
[14] |
朱立光,郭志红.高速连铸技术研究[J].河北冶金,2021(6):1.
|
[15] |
韩毅华,刘少寒,朱立光.软接触电磁连铸结晶器保护渣冶金行为的研究进展[J].河北冶金,2021(5):1.
|
[16] |
王林杰, 孔令种, 冯亮花, 等. 高拉速方坯连铸结晶器钢渣界面行为特征[J].连铸, 2021 (4): 11.
|
[17] |
Lee S M, Hwang J Y, Lee S H, et al. Revamping of the No. 2-3 slab caster at POSCO GWANGYANG: Design, start-up and initial operation results[J].La Metallurgia Italiana, 2009, 101(1):33.
|
[18] |
朱苗勇. 新一代高效连铸技术发展思考[J].钢铁, 2019, 54(8):21.
|
[19] |
石树东,胡显堂,张虎成,等.薄板坯连铸保护浇注工艺研究[J].河北冶金,2021(9):39.
|
[20] |
王新华, 李秀刚, 李强,等. X80管线钢板中条串状CaO-Al2O3系非金属夹杂物的控制[J].金属学报, 2013, 49(5):553.
|
[21] |
黄日康, 张立峰, 姜仁波,等. 超低碳铝脱氧钢中FeOx对水口结瘤的影响[J].钢铁, 2021, 56(1):43.
|
[22] |
张立峰. 钢中非金属夹杂物几个需要深入研究的课题[J].炼钢, 2016, 32(4):1.
|
[23] |
李杰, 孙彦辉, 郑京辉,等. 板坯动态二冷配水控制模型改进和应用[J].连铸, 2020 (2):33.
|
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