Melting behavior of CaAl cored wire in liquid steel and optimization of wire feeding parameters

ZHENG Wan; LI Tian-you; WANG Chun-feng; XIONG Shan; LI Guang-qiang; LIU Bing-yu

doi:10.13374/j.issn2095-9389.2018.s1.024

Volume 40 Issue S1

Dec. 2018

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ZHENG Wan, LI Tian-you, WANG Chun-feng, XIONG Shan, LI Guang-qiang, LIU Bing-yu. Melting behavior of CaAl cored wire in liquid steel and optimization of wire feeding parameters[J]. Chinese Journal of Engineering, 2018, 40(S1): 168-173. doi: 10.13374/j.issn2095-9389.2018.s1.024

Citation:

ZHENG Wan, LI Tian-you, WANG Chun-feng, XIONG Shan, LI Guang-qiang, LIU Bing-yu. Melting behavior of CaAl cored wire in liquid steel and optimization of wire feeding parameters[J]. Chinese Journal of Engineering, 2018, 40(S1): 168-173. doi: 10.13374/j.issn2095-9389.2018.s1.024

Citation:

ZHENG Wan, LI Tian-you, WANG Chun-feng, XIONG Shan, LI Guang-qiang, LIU Bing-yu. Melting behavior of CaAl cored wire in liquid steel and optimization of wire feeding parameters[J]. Chinese Journal of Engineering, 2018, 40(S1): 168-173. doi: 10.13374/j.issn2095-9389.2018.s1.024

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Melting behavior of CaAl cored wire in liquid steel and optimization of wire feeding parameters

doi: 10.13374/j.issn2095-9389.2018.s1.024

1. Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education,Wuhan University of Science and Technology;
2. Hubei Provincial Key Laboratory for New Process of Ironmaking and Steelmaking,Wuhan University of Science and Technology;
3. Wuhan Iron and Steel Co.Ltd.,Baowu Group

Received Date: 2018-02-27
Available Online: 2023-07-18

Abstract

Abstract

Melting and gasification behavior of Ca Al cored wire with 0.74-mm steel sheet and better feeding process in 1873 K molten steel in 150 t ladle was simulated, and the influence of different Ca cored wire and composition of liquid steel on Ca recovery were analyzed.The results show that calcium alloy of Ca Al cored wire has smelted before its covering steel sheet melts when cored wire is fed into molten steel, melting time of Ca Al cored wire is 0.92 s, then liquid Ca alloy diffuses into liquid steel.Liquid Ca alloy floats upward to 1.22 m below the liquid steel surface and gasifies when alloy has get enough steam pressure of gasification.The feeding speed of 3.22-4.83 m·s^-1for Ca Al cored wire is appropriate to get ideal feeding depth of 2.96 m in ladle with liquid steel.When the elements contents of carbon, silicon and manganese in liquid steel are high, pure Ca cored wire should be used to get bigger Ca recovery, on the contrary, Ca Al cored wire is a better option for low carbon liquid steel with low elements contents of silicon and manganese.
- CaAl cored wire,
- calcium treatment,
- melting characteristics,
- wire-feeding parameters

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References(12)

References

[1]	Li F, Ren Q, Li Y C, et al. Influence of calcium treatment and protective casting on steel cleanliness during continuous casting process. Steelmaking, 2016, 32 (3) :18 (李菲, 任強, 李雅翀, 等.鈣處理及保護澆鑄工藝對鋼液潔凈度影響.煉鋼, 2016, 32 (3) :18)
[2]	Verma N, Pistorius P C, Fruehan R J, et al. Transient inclusion evolution during modification of alumina inclusions by calcium in liquid steel:Part I. background, experimental techniques and analysis methods. Metall Mater Trans B, 2011, 42 (4) :711
[3]	Yang J, Du J, Chen B T, et al. Influence of calcium treatment on oxide inclusions in ultra-low oxygen refining process. Iron Steel, 2015, 50 (1) :19 (楊俊, 杜江, 陳波濤, 等.超低氧精煉時鈣處理對氧化物夾雜的影響.鋼鐵, 2015, 50 (1) :19)
[4]	Zhang C M, Wang P F, Ai X G, et al. Experimental Method and Device for Simulating Ca Cored Wire Feeding Process in Liquid Steel by Solid Tracer:China Patent, 201610397480. 9. 2016-08-24 (張崇民, 王攀峰, 艾新港, 等.一種采用固體示蹤劑模擬鋼液喂鈣線的實驗方法及裝置:中國專利, 201610397480. 9.2016--08-24)
[5]	Zhang P, Cheng S S, Chen C. Parameter optimization of aluminum wire feeding process during LF refining. J Univ Sci Technol Beijing, 2014, 36 (Suppl 1) :41 (張鵬, 程樹森, 陳川. LF喂鋁線過程參數優化.北京科技大學學報, 2014, 36 (增刊1) :41)
[6]	Huang X H. Metallurgy Principle of Iron and Steel. 4nd Ed. Beijing:Metallurgical Industry Press, 2013 (黃希祜.鋼鐵冶金原理. 4版.北京:冶金工業出版社, 2013)
[7]	Wang H X, Chang G W. Study of wire-feeding velocity during spheroidizing treatment based on ANSYS software. Hot Work Technol, 2011, 40 (11) :52 (王洪新, 常國威.基于ANSYS球化處理時喂線速度的研究.熱加工工藝, 2011, 40 (11) :52)
[8]	Huang H G, Li X M, Yan M, et al. Temperature field simulation on process of calcium cored wire feeding in ladle based on birth and death element method. J Yanshan Univ, 2015, 39 (3) :241 (黃華貴, 李學敏, 燕猛, 等.基于生死單元法的鈣線喂入鋼包過程溫度場仿真研究.燕山大學學報, 2015, 39 (3) :241)
[9]	Liu X K. CFD Simulation and Process Optimization Study of the Process of Metal Core Wire Feeding Ladle[Dissertation]. Qinhuangdao:Yanshan University, 2012 (劉曉凱.金屬芯線喂入鋼包過程CFD數值模擬及工藝優化研究[學位論文].秦皇島:燕山大學, 2012)
[10]	Zhang S T. Research and application of thin wall exhaust pipe of ductile iron spheroidized by feeding alloy cored wire. Heilongjiang Metall, 2014, 34 (5) :50 (張壽濤.喂線球化生產薄壁球鐵排氣管研究與應用.黑龍江冶金, 2014, 34 (5) :50)
[11]	Yan G F, Huang Z Y, Xie Z Q, et al. The oretical discussion on injection speed of cored wire//Proceedings of the 18th National Conference on Steelmaking (2014) . Xi’an, 2014:1 (顏根發, 黃志勇, 謝志強, 等.包芯線喂線速度的理論探討//第十八屆 (2014年) 全國煉鋼學術會議.西安, 2014:1)
[12]	Song B, Han Q Y. Equilibrium of calcium vapor with liquid iron and the interaction of third elements. Metall Mater Trans B, 1998, 29 (2) :415