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Designing of a Novel Shroud for Improving the Quality of Steel in Tundish

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Abstract:

In present 92.8% of world steel production is casted on continuous casting machine. The key phase of continuous casting is tundish. Beside of refining effect of slag phase also steel flow in tundish is very important factor. The main causes for inclusion formation and contamination of the melt include reoxidation of the melt by air and carried over oxidizing ladle slag, entrainment of tundish and ladle slag, and emulsification of these slags into the melt. These causes are due to generation of turbulence in the melt. Although turbo stop lowers the turbulence in some extent. But it is not capable of totally decrease of turbulence specially during lowering of metal bath at the time of ladle exchange operation, cause contamination of the steel melt in tundish. So in the present work it has been focused to develop a novel shroud which have significant role to supply of steel from ladle to tundish at slow rate to avoid turbulence, emulsification and formation of slag eye in tundish to produce quality steel in a sustained manner.

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Periodical:

Advanced Materials Research (Volume 585)

Pages:

359-363

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.585.359

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Online since:

November 2012

Authors:

Debasish Chatterjee

Keywords:

Ladle Exchange, Reoxidation, Shroud, Slag Eye, Tundish

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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