State of the Art Control Measures for Aluminium Fade and SEN Clogging during Steelmaking Operations

Kamaraj, A and Saravana Kumar, S and Rajaguru, M (2018) State of the Art Control Measures for Aluminium Fade and SEN Clogging during Steelmaking Operations. IOP Conference Series: Materials Science and Engineering, 314 (IF-0.32).

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Crack formation, fatigue failure of components and other process interruptions in liquid steel practices such as ladle nozzle clogging, SEN clogging, break outs are mainly due to residual deoxidation products such as alumina present in steels. The present paper deals with the issues in steel processing operations and provides state-of-the-art control measures for clean steel production. Investigations regarding the residual alumina content and its consequences at integrated steel plant shows that, Al-fade of maximum 0.02% is observed, which produces equivalent of 37 Kg of alumina in the liquid steel. Furthermore, slag carry over, re-oxidation, improper argon rinsing practice, aluminium consumption at secondary steelmaking practices also influences the alumina formation during steelmaking practices. The residual alumina not only affects the quality of steel, but also results in process interruptions such as ladle choking, SEN choking, subsequent break outs etc. various steelmaking practices influences clogging and aluminium fade are discussed and possible suggestions are given to improve the cleanliness of steel.

Item Type:Article
Official URL/DOI:doi:10.1088/1757-899X/314/1/012022
Uncontrolled Keywords:SEN choking,ladle nozzle clogging, SEN clogging,aluminium consumption,Crack formation
Divisions:Material Science and Technology
ID Code:7792
Deposited By:Sahu A K
Deposited On:06 Apr 2018 12:27
Last Modified:06 Apr 2018 12:27
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