Fundamental Research on Fluorine-Free Ladle Furnace Slag for Axle Steel of Electric Multiple Unit Vehicles

Qing Zhao; Xiaohui Mei; Lei Gao; Jinwen Zhang; Zhixiang Wang; Lifeng Sun; Ron Zevenhoven; Henrik Saxén

doi:10.3390/met11121973

Fundamental Research on Fluorine-Free Ladle Furnace Slag for Axle Steel of Electric Multiple Unit Vehicles

Qing Zhao, Xiaohui Mei^*, Lei Gao, Jinwen Zhang, Zhixiang Wang, Lifeng Sun, Ron Zevenhoven, Henrik Saxén

^*Corresponding author for this work

Laboratory of Process and Systems Engineering

Research output: Contribution to journal › Article › Scientific › peer-review

4 Citations (Scopus)

Abstract

Fluorine-bearing refining slag (FBS) is used to produce axle steel for electric multiple unit vehicles. To avoid environmental pollution caused by fluorine, a fluorine-free ladle furnace slag (FFS) was designed based on an industrial FBS. The effects of main components on the physical and metallurgical properties of slag were investigated via theoretical analysis and laboratory tests. The composition range of components of the designed FFS are w(CaO) = 40–55 wt.%, w(SiO₂) = 2–6 wt.%, w(Al₂ O₃) = 30–40 wt.%, w(MgO) = 6–8 wt.%, and w(CaO)/w(Al₂ O₃) = 1.25–1.50. Industrial-scale test results indicate that the FFS has similar deoxidation and desulfurization capabilities to industrial FBS.

Original language	English
Article number	1973
Journal	Metals
Volume	11
Issue number	12
DOIs	https://doi.org/10.3390/met11121973 https://doi.org/10.3390/met11121973
Publication status	Published - Dec 2021
MoE publication type	A1 Journal article-refereed

Keywords

refining slag
fluorine-free slag
ladle furnace
EMU
axle steel

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10.3390/met11121973

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title = "Fundamental Research on Fluorine-Free Ladle Furnace Slag for Axle Steel of Electric Multiple Unit Vehicles",

abstract = "Fluorine-bearing refining slag (FBS) is used to produce axle steel for electric multiple unit vehicles. To avoid environmental pollution caused by fluorine, a fluorine-free ladle furnace slag (FFS) was designed based on an industrial FBS. The effects of main components on the physical and metallurgical properties of slag were investigated via theoretical analysis and laboratory tests. The composition range of components of the designed FFS are w(CaO) = 40–55 wt.%, w(SiO2) = 2–6 wt.%, w(Al2 O3) = 30–40 wt.%, w(MgO) = 6–8 wt.%, and w(CaO)/w(Al2 O3) = 1.25–1.50. Industrial-scale test results indicate that the FFS has similar deoxidation and desulfurization capabilities to industrial FBS.",

keywords = "refining slag, fluorine-free slag, ladle furnace, EMU, axle steel",

author = "Qing Zhao and Xiaohui Mei and Lei Gao and Jinwen Zhang and Zhixiang Wang and Lifeng Sun and Ron Zevenhoven and Henrik Sax{\'e}n",

note = "Funding Information: This research was funded by the National Natural Science Foundation of China grant number 52074078, the National Key Research and Development Program of China grant number 2017YFB0304603, the Liaoning Provincial Natural Science Foundation of China grant number 2019? MS?127, and the Fundamental Research Funds for the Central Universities grant number N2125034 and N2025035. Funding Information: Funding: This research was funded by the National Natural Science Foundation of China grant number 52074078, the National Key Research and Development Program of China grant number 2017YFB0304603, the Liaoning Provincial Natural Science Foundation of China grant number 2019– MS–127, and the Fundamental Research Funds for the Central Universities grant number N2125034 and N2025035. Publisher Copyright: {\textcopyright} 2021 by the authors. Licensee MDPI, Basel, Switzerland.",

year = "2021",

month = dec,

doi = "10.3390/met11121973",

language = "English",

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journal = "Metals",

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AU - Zhao, Qing

AU - Mei, Xiaohui

AU - Gao, Lei

AU - Zhang, Jinwen

AU - Wang, Zhixiang

AU - Sun, Lifeng

AU - Zevenhoven, Ron

AU - Saxén, Henrik

N1 - Funding Information: This research was funded by the National Natural Science Foundation of China grant number 52074078, the National Key Research and Development Program of China grant number 2017YFB0304603, the Liaoning Provincial Natural Science Foundation of China grant number 2019? MS?127, and the Fundamental Research Funds for the Central Universities grant number N2125034 and N2025035. Funding Information: Funding: This research was funded by the National Natural Science Foundation of China grant number 52074078, the National Key Research and Development Program of China grant number 2017YFB0304603, the Liaoning Provincial Natural Science Foundation of China grant number 2019– MS–127, and the Fundamental Research Funds for the Central Universities grant number N2125034 and N2025035. Publisher Copyright: © 2021 by the authors. Licensee MDPI, Basel, Switzerland.

PY - 2021/12

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N2 - Fluorine-bearing refining slag (FBS) is used to produce axle steel for electric multiple unit vehicles. To avoid environmental pollution caused by fluorine, a fluorine-free ladle furnace slag (FFS) was designed based on an industrial FBS. The effects of main components on the physical and metallurgical properties of slag were investigated via theoretical analysis and laboratory tests. The composition range of components of the designed FFS are w(CaO) = 40–55 wt.%, w(SiO2) = 2–6 wt.%, w(Al2 O3) = 30–40 wt.%, w(MgO) = 6–8 wt.%, and w(CaO)/w(Al2 O3) = 1.25–1.50. Industrial-scale test results indicate that the FFS has similar deoxidation and desulfurization capabilities to industrial FBS.

AB - Fluorine-bearing refining slag (FBS) is used to produce axle steel for electric multiple unit vehicles. To avoid environmental pollution caused by fluorine, a fluorine-free ladle furnace slag (FFS) was designed based on an industrial FBS. The effects of main components on the physical and metallurgical properties of slag were investigated via theoretical analysis and laboratory tests. The composition range of components of the designed FFS are w(CaO) = 40–55 wt.%, w(SiO2) = 2–6 wt.%, w(Al2 O3) = 30–40 wt.%, w(MgO) = 6–8 wt.%, and w(CaO)/w(Al2 O3) = 1.25–1.50. Industrial-scale test results indicate that the FFS has similar deoxidation and desulfurization capabilities to industrial FBS.

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Fundamental Research on Fluorine-Free Ladle Furnace Slag for Axle Steel of Electric Multiple Unit Vehicles

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