Study of Corrosion Mechanism of Al2O3-MgO Refractories and its Effect on Cleanness of Molten Steel

Jun Liu; Hai Xia Feng

doi:10.4028/www.scientific.net/AMR.1004-1005.193

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 1004-1005Study of Corrosion Mechanism of Al2O3-MgO...

Study of Corrosion Mechanism of Al₂O₃-MgO Refractories and its Effect on Cleanness of Molten Steel

Abstract:

High purity AL₂O₃-MgO carbon-free refractories for ladle lining were investigated, this paper compared with the properties of bricks with different bond system and different production process, and study the wear mechanism, the TOC and hydrogen content change; analyzing the microstructure of residual bricks and the impact of refractories on quality of molten steel;Conclusions:The two kinds of bricks have different wear mechanism, the bricks bonded by a-bond was damaged mainly by penetration and erosion while the bricks bonded by resin was damaged by structure spalling and they have different effect on cleanness of molten steel.

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Periodical:

Advanced Materials Research (Volumes 1004-1005)

Pages:

193-197

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1004-1005.193

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Online since:

August 2014

Authors:

Jun Liu, Hai Xia Feng

Keywords:

Microstructure, Molten Steel, Refractories, Teeming Ladle

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References

[1] LiNan, WuXiejie, ChenXiaoxia, etal. Effects of MgO and AL2O3-MgO. Al2O3 refractories on oxygen content of interstitial free steel in a vacuum condition. Proc of UNTECR'05.

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[2] Yu JingKun, Zhu Qiangm, Chen Min. A study on the mechanism of oxygen transferring from refractories in to molten steel. Proc of UNTECR'05.

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