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

Research output: Contribution to journalArticleScientificpeer-review

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 languageEnglish
Article number1973
JournalMetals
Volume11
Issue number12
DOIs
Publication statusPublished - Dec 2021
MoE publication typeA1 Journal article-refereed

Keywords

  • Axle steel
  • EMU
  • Fluorine-free slag
  • Ladle furnace
  • Refining slag

Fingerprint

Dive into the research topics of 'Fundamental research on fluorine-free ladle furnace slag for axle steel of electric multiple unit vehicles'. Together they form a unique fingerprint.

Cite this