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Effect of EAF Slag ...
Effect of EAF Slag Carryover on Slag-metal Equilibrium Calculations for Ladle Degassing Process
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- Doostmohammadi, Hamid (författare)
- KTH,Tillämpad processmetallurgi
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- Andersson, Margareta A. T. (författare)
- KTH,Tillämpad processmetallurgi
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- Steneholm, Karin (författare)
- Uddeholm Tooling AB
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visa fler...
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- Jönsson, Pär (författare)
- KTH,Tillämpad processmetallurgi
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visa färre...
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(creator_code:org_t)
- 2009
- 2009
- Engelska.
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Ingår i: EPD CONGRESS 2009, PROCEEDINGS. - 9780873397322 ; , s. 695-702
- Relaterad länk:
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https://urn.kb.se/re...
Abstract
Ämnesord
Stäng
- During the tapping of liquid steel from Electric Arc Furnace (EAF), some slag is carried over into the ladle. High levels of FeO and MnO in slag carryover increase the oxygen activity in steel melt leading to oxide inclusion formation during the ladle treatment. The demand on cleaner steels requires minimization of carryover slag. In this work, the effect of EAF slag carryover on ladle slag-steel equilibrium calculations for a hot working tool steel was studied. Steel and slag sampling were done in Uddeholm Tooling AB in Sweden. XRF and OES techniques were used to determine chemical composition of samples. The quantity of slag carryover was calculated based on a mass balance followed by thermodynamic calculations on metal-slag equilibrium using Thermo-Calc software. The agreement between predictions and experimentally determined compositions was good. This leads to the development of a prediction method for optimizing the production of other tool steel grades.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Metallurgi och metalliska material (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Metallurgy and Metallic Materials (hsv//eng)
Nyckelord
- Slag carryover
- Thermodynamic calculations
- Tool steel
- Vacuum degassing
- Metallurgical process engineering
- Metallurgisk processteknik
Publikations- och innehållstyp
- ref (ämneskategori)
- kon (ämneskategori)
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