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http://hdl.handle.net/2080/1641
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| DC Field | Value | Language |
|---|
| contributor.author | Sadual, M R | - |
| contributor.author | Swain, S K | - |
| contributor.author | Kumar, M | - |
| date.accessioned | 2012-03-16T09:52:27Z | - |
| date.available | 2012-03-16T09:52:27Z | - |
| date.issued | 2011-12 | - |
| identifier.citation | National Conference on Processing and Characterization of Materials (NCPCM-2011), Department of Metallurgical & Materials Engineering, 2-3 December 2011, National Institute of Technology, Rourkela | en |
| identifier.uri | http://hdl.handle.net/2080/1641 | - |
| description | Copyright belongs to proceeding publisher | en |
| description.abstract | Approximately 90 % of world’s crude steel production is casted using a continuous casting
process where the liquid steel flows from ladle to tundish next to mold in a continuous casting
system. In modern steelmaking and continuous casting plants, tundish technology from both
fundamental and practical point of view is most important. Steel is produced in three basic route
like, basic oxygen furnace (BOF), electric arc furnace (EAF) & induction furnace (IF). BOF hot
metal and scrap are blown by oxygen gas with a flux addition such as lime etc. A modern EAF
produces steel by remelting and refining steel from DRI, scrap and other raw materials, and also
uses oxygen gas injection and lime addition. In induction furnace main input raw materials are
DRI & scrap.The steel melt with dissolved oxygen thus produced is tapped into a ladle, where it
is deoxidized with ferroalloys, Fe-Si, Fe-Si-Mn, and/or metallic aluminum. The deoxidation
products,such as silica, manganosilicates, alumina, aluminosilicates, aluminates and/or their
composites, are largely removed from the melt by flotation.Whenever necessary, the deoxidized
melt is further processed in a ladle furnace (LF) to remove any remaining suspended oxide
particles (called non-metallic inclusions, or simply inclusions), to lower the sulfur content, and to
adjust the melt’s chemistry and temperature. Degassing of steel melt is done in vacuum refining
facilities (RH, VAD, or VOD) to decrease hydrogen for crack sensitive grades and/or carbon for
ultra low carbon grades. The melt is then transferred from the ladle via a tundish into the mold of
a continuous casting machine and is solidified as slabs, blooms, or billets. In the last three
decades, continuous casting has become a mature technology for the solidification of steel.
Continuous casting offers many advantages including better premium cast-metal yield chemical
homogeneity, and better inclusion cleanliness. In continuous casting process, the tundish plays
an important role in linking the ladle with the continuous casting machine. Tundish technology
as an important component of the steel production processes, with emphasis placed on the
metallurgical aspects of producing clean steel. | en |
| format.extent | 1105841 bytes | - |
| format.mimetype | application/pdf | - |
| language.iso | en | - |
| subject | Steelmaking | en |
| subject | Tundish | en |
| subject | Liquid Steel | en |
| subject | thermal states | en |
| subject | Flow simulation | en |
| subject | Heat loss | en |
| title | Recent Trend on Tundish Design | en |
| type | Article | en |
| Appears in Collections: | Conference Papers
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Files in This Item:
| File |
Description |
Size | Format |
|---|
| skswain.pdf | | 1079Kb | Adobe PDF | View/Open |
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