Control and prediction of total oxygen in IF steel

WANG Min; BAO Yan-ping; CUI Heng; WU Wei-shuang; WU Hua-jie

doi:10.13374/j.issn1001-053x.2010.04.004

Volume 32 Issue 4

Aug. 2021

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WANG Min, BAO Yan-ping, CUI Heng, WU Wei-shuang, WU Hua-jie. Control and prediction of total oxygen in IF steel[J]. Chinese Journal of Engineering, 2010, 32(4): 432-437. doi: 10.13374/j.issn1001-053x.2010.04.004

Citation:

WANG Min, BAO Yan-ping, CUI Heng, WU Wei-shuang, WU Hua-jie. Control and prediction of total oxygen in IF steel[J]. Chinese Journal of Engineering, 2010, 32(4): 432-437. doi: 10.13374/j.issn1001-053x.2010.04.004

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Control and prediction of total oxygen in IF steel

doi: 10.13374/j.issn1001-053x.2010.04.004

School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China

Received Date: 2009-08-31

Abstract

Abstract

The reoxidation mechanisms of IF steel containing Al and Ti by reducible oxides in the slag were analyzed.A model of predicting total oxygen in the molten steel was established based on the reoxidation mechanisms.It was found that two different reaction mechanisms existed when(FeO) and(MnO) in the slag reoxidated the molten steel.Reoxidation occurred at the slag/steel interface when mass transfer of reducible oxides in the slag dominated the reaction,and the oxidability of the slag exponentially declined with prolonging time.When mass transfer of de-oxidative elements in the molten steel dominated the reaction,reoxidation carried out in the molt steel.A specific formula between the oxidability of the slag and time was obtained by regressing the data from a steelmaking plant.
- IF steel,
- reoxidation,
- total oxygen,
- prediction,
- mass transfer