Professional paper

Surface tension of expanded slag from steel manufacturing in electrical furnace

J. Łabaj ; Department of Metallurgy, Silesian Technical University, Katowice, Poland
G. Siwiec ; Department of Metallurgy, Silesian Technical University, Katowice, Poland
B. Oleksiak ; Department of Metallurgy, Silesian Technical University, Katowice, Poland

Abstract

In the article a research on the surface tension of slag was conducted from the process of obtaining steel in the electric furnace. Melting in the graphite melting crucible caused the slag to foam. The measurement of the surface tension is being conducted with method of rejection. They make the measurement of maximum power needed for the liquid to reject the working element of the apparatus from the surface. The research was conducted in the temperature of 1 673 – 1 723 K. The results of the measurements allowed to determine the surface tension of slag, which in the analysed scope of the temperature is being changed from 454 to 345 mN•m-1.

Keywords

steel; slag; surface tension; electric furnace

Hrčak ID:

64387

URI

https://hrcak.srce.hr/64387

Publication date:

1.7.2011.

Article data in other languages: croatian

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