Research on Secondary Cooling Technologies for Continuous Bloom Casting

Chen Yong; Yang Subo; Li Jianquan; Chen Lu:Ying

Volume 27 Issue 3

Jul. 2006

Turn off MathJax

Article Contents

Abstract

References

Article Navigation > IRON STEEL VANADIUM TITANIUM > 2006 > 27(3): 31-37

Chen Yong, Yang Subo, Li Jianquan, Chen Lu:Ying. Research on Secondary Cooling Technologies for Continuous Bloom Casting[J]. IRON STEEL VANADIUM TITANIUM, 2006, 27(3): 31-37.

Citation:

Chen Yong, Yang Subo, Li Jianquan, Chen Lu:Ying. Research on Secondary Cooling Technologies for Continuous Bloom Casting[J]. IRON STEEL VANADIUM TITANIUM, 2006, 27(3): 31-37.

Chen Yong, Yang Subo, Li Jianquan, Chen Lu:Ying. Research on Secondary Cooling Technologies for Continuous Bloom Casting[J]. IRON STEEL VANADIUM TITANIUM, 2006, 27(3): 31-37.

Citation:

Chen Yong, Yang Subo, Li Jianquan, Chen Lu:Ying. Research on Secondary Cooling Technologies for Continuous Bloom Casting[J]. IRON STEEL VANADIUM TITANIUM, 2006, 27(3): 31-37.

PDF( 931 KB)

Research on Secondary Cooling Technologies for Continuous Bloom Casting

1. School of Materials and Metallurgy, Northeastern University, Shenyang 110004, Liaoning, China;
2. Panzhihua Iron and Steel Research Institute, Panzhihua 617000, Sichuan, China;
3. Vanadium Recovery & Steelmaking Plant of PZH Steel, Panzhihua 617062, Sichuan, China

Received Date: 2006-04-25
Available Online: 2023-12-06

Abstract

Abstract

The secondary cooling scheme previous employed in continuous bloom caster was of following inadaptabilities for production of rail steel, such as the density of the secondary cooling and water distribution in secondary cooling zones. Therefore, the secondary cooling control scheme suitable for rail steel was developed on the basis of the variation of hot ductility with temperature and the distribution of strand surface temperature in secondary cooling zones, which improves internal quality of bloom heavy rail obviously. The operation shows that the center looseness and central segregation and shrinkage cavity are≤1.0, meanwhile, central segregation index of carbon is≤1.05, and the area ratio of equiaxed zone is≥30%. Internal quality and mechanical performance of the rails produced from continuously cast blooms have met the requirement of high-speed 350 km/h tracks.
- continuous bloom casting,
- secondary cooling control,
- rail steel,
- internal quality

FullText(HTML)

References(0)

References

Relative Articles

[1]	Li Hongguang, Xu Mingli, He Wei, Wang Zhangyin. Effects of solidification structure on MnS in heavy rail steel bloom[J]. IRON STEEL VANADIUM TITANIUM, 2024, 45(5): 151-157. doi: 10.7513/j.issn.1004-7638.2024.05.020
[2]	Li Hongguang, Xu Mingli, Feng Yuanchao, Zeng Wu. Analysis on the formation of V-shape segregation in rail steel bloom[J]. IRON STEEL VANADIUM TITANIUM, 2023, 44(5): 180-187. doi: 10.7513/j.issn.1004-7638.2023.05.027
[3]	Li Hongguang. Effect of Interaction Between Superheat Degree and Combined EMS on Dendritic Structure and Homogeneity of Heavy Rail Steel Bloom[J]. IRON STEEL VANADIUM TITANIUM, 2020, 41(2): 114-119. doi: 10.7513/j.issn.1004-7638.2020.02.021
[4]	Chen Liang, Song Bo, Chen Tianming, Li Yangzhou, Li Zhiqiang, Li Jianquan. Key Technologies of Macro Segregation Control in 320 mm×410 mm Continuous Casting Bloom for Railway Steel[J]. IRON STEEL VANADIUM TITANIUM, 2018, 39(1): 118-123. doi: 10.7513/j.issn.1004-7638.2018.01.021
[5]	Sun Yanhui, Li Shiwei, Liu Fengjun, Zhao Haiyang. Influence of Mold Electromagnetic Stirring on Carbon Segregation on Continuously Cast Blooms of Bearing Steel[J]. IRON STEEL VANADIUM TITANIUM, 2013, 34(3): 72-76,87. doi: 10.7513/j.issn.1004-7638.2013.03.015
[6]	Chen Yong, Wu Guorong, Pan Hong, Li Jianquan. Key Technologies for Square/Round Billet Continuous Casting[J]. IRON STEEL VANADIUM TITANIUM, 2013, 34(2): 54-61. doi: 10.7513/j.issn.1004-7638.2013.02.011
[7]	Chen Tianming, Chen Yong, Deng Jun, Yang Senxiang, Chen Liang, Li Qingchun, Ceng Jianhua. Trial Production of High Chromium Tube Steel by Convert-bloom Continuous Casting Process[J]. IRON STEEL VANADIUM TITANIUM, 2011, 32(2): 39-42.
[8]	Chen Yong, Wu Guorong, Sun Yanhui. Measurement of the Solidified Shell Thickness in the Secondary Cooling Zone of Continuous Casting of Bloom[J]. IRON STEEL VANADIUM TITANIUM, 2009, 30(1): 60-63.
[9]	Chen Yong, Chen Jianping, Wu Guorong, Yang Subo. Key Technology Development for 360 mm×450 mm Bloom Caster at PISCO[J]. IRON STEEL VANADIUM TITANIUM, 2009, 30(2): 61-67.
[10]	CHEN Yong, YANG Subo, ZHU Miaoyong. Research on Secondary Cooling Technology for Continuous Casting of 360 mm× 450 mm Bloom[J]. IRON STEEL VANADIUM TITANIUM, 2008, 29(4): 42-47.
[11]	Chen Yong, Yang Subo. Influence of Mold Electromagnetic Stirring Structure on Internal Quality of Continuously Cast Bloom[J]. IRON STEEL VANADIUM TITANIUM, 2007, 28(3): 42-46.
[12]	Chen Yong, Yuan Hongwei, Yang Subo, Chen Lu:Ying. Research on Dynamic Soft Reduction Technologies for Bloom Continuous Casting of Heavy Rail[J]. IRON STEEL VANADIUM TITANIUM, 2007, 28(1): 35-41.
[13]	Chen Yong, Yang Subo. Research on Secondary Cooling Technologies for Bloom Continuous Casting of High Vanadium and Nitrogenous Weathering Steel[J]. IRON STEEL VANADIUM TITANIUM, 2007, 28(4): 36-41.
[14]	Chen Yuanqing, Wen Guanghua, Zhu Mingmei, Tang Ping, Yang Subo, Zhang Longchao, Jie Mingke. Study on Physical Modeling of Four-strand Tundish for Bloom Continuous Caster[J]. IRON STEEL VANADIUM TITANIUM, 2006, 27(2): 33-37.
[15]	Chen Yong, Yang Subo, Li Jianquan, Chen Lu:Ying. Research on Mold Electromagnetic Stirring Technologies for Bloom Continuous Casting of Heavy Rail[J]. IRON STEEL VANADIUM TITANIUM, 2006, 27(4): 14-20,24.
[16]	CHEN Yong, ZHANG Da-de, YANG Su-bo, LI Gui-jun, LI Jian-quan. OPTIMIZATION OF MOLD COOLING PROCESS AT BLOOM CONTINUOUS CASTING[J]. IRON STEEL VANADIUM TITANIUM, 2004, 25(4): 20-23.
[17]	CHEN Yong, LI Gui-jun, YANG Su-bo, WENG Jian-jun, CHEN Lu-ying. KEY TECHNOLOGIES FOR BLOOM CONTINUOUS CASTING AND ITS APPLICATION[J]. IRON STEEL VANADIUM TITANIUM, 2004, 25(1): 1-6.
[18]	CHEN Yong, LI Gui-jun, ZHAO Ke-wen. RESEARCH ON PRODUCTION OF 300 km/h HEAVY RAIL USING CONTINUOUSLY CAST ROUND BLOOM[J]. IRON STEEL VANADIUM TITANIUM, 2003, 24(4): 25-30.
[19]	CHEN Yong, LI Gui-jun, GOU Shu-yun. TECHNOLOGIES FOR IMPROVING QUALITY OF CONTINUOUSLY CAST HEAVY RAIL STEEL BLOOM[J]. IRON STEEL VANADIUM TITANIUM, 2002, 23(4): 41-46.
[20]	Dang Yuchun, Yang Jian, Zhao Rongjie. QUALITY OF STEEL FOR HEAVY RAIL NEEDS IMPROVING AT PANGANG[J]. IRON STEEL VANADIUM TITANIUM, 1997, 18(4): 9-13.