Hydrogen variation in molten steel during LF refining

Jiantao Ju*, Zhenlin Lv, Minjuan Zhang, Zhaohui Zhang, Jun Yang

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The hydrogen content was measured by HYDRIS hydrogen analyzer during ladle furnace (LF) refining process aiming to test the regular pattern of hydrogen variation in molten steel. The results showed that the hydrogen increased during temperature rising, Ca-treatment and soft blowing argon period, and the absolute increment were 0.64 ppm and 0.46 ppm respectively. The water in refining slag and submerged arc slag led to hydrogen increase during temperature rising period, and fast wire-feeding speed led to hydrogen increase during Ca-treatment and soft argon blowing period. In addition, during the desulfuration and alloying period, excessive large argon blowing caused the hydrogen content increasing by 0.22 ppm.

Original languageEnglish
Title of host publicationEco-Materials Processing and Design XII
PublisherTrans Tech Publications Ltd.
Pages353-356
Number of pages4
ISBN (Print)9783037852224
DOIs
Publication statusPublished - 2011
Externally publishedYes

Publication series

NameMaterials Science Forum
Volume695
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Keywords

  • Argon blowing
  • Hydrogen content
  • LF refining

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