Journal
IRONMAKING & STEELMAKING
Volume 35, Issue 8, Pages 589-599Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1179/174328108X284589
Keywords
Inclusions; Agglomeration; Metal/slag interface; In situ experiments; Capillary force
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Funding
- Swedish Steel Producers Association (Jernkontoret)
- Sweden-Japan Foundation
- Axel Hultgren's Foundation
- Overingenjoren Gustaf Jansson's Foundation
- Vargons Smaltverk's Foundation
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Studies of inclusion behaviour at the metal/slag interface is of great importance for the steel industry in order to achieve better control of both the size and amount of the inclusions, as well as improving the steel quality and the casting process. In this work agglomeration of liquid Al2O3-CaO particles at both steel/argon gas and steel/slag interfaces was studied with a confocal scanning laser microscope. In addition, agglomeration of liquid Al2O3-CaO-SiO2 inclusions present in the slag was investigated. The results showed that liquid inclusions more easily agglomerated to semiliquid inclusions than to liquid inclusions. Moreover, the agglomeration of liquid particles was found to be improved remarkably when the particles were present in the slag compared to when they were in the steel/slag interface.
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