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The Effect of CaF2 in the Slag in Ladle Refining
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering.
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering.ORCID iD: 0000-0002-3548-8638
2009 (English)In: Steel Research International, ISSN 1611-3683, E-ISSN 1869-344X, Vol. 80, no 8, 544-551 p.Article in journal (Refereed) Published
Abstract [en]

Industrial experiments were conducted in ladle treatment at SSAB Oxelosund aiming at a reduction and even elimination of CaF2 as a component in synthetic slag formers. The effects of the presence of CaF2 on sulphur refining, lining wear as well as types and amount of inclusions were examined. The results of the plant trials indicated that the new slag without CaF2 had enough capacity for sulphur removal. On the other hand, the presence of CaF2 as a flux in the slag resulted in profound lining wear. It was also found that both the number and the types of non-metallic inclusions were not affected by the elimination of CaF2 from synthetic slag. The origins of different types of inclusions were also analysed on the basis of the experimental results. The analysis supported the finding that the presence of CaF2 had little effect on inclusions.

Place, publisher, year, edition, pages
2009. Vol. 80, no 8, 544-551 p.
Keyword [en]
CaF2, sulphur refining, steel, ladle slag, slag former, sulphur, refining, lining wear, non metallic inclusions
National Category
Metallurgy and Metallic Materials
Identifiers
URN: urn:nbn:se:kth:diva-18692DOI: 10.2374/sri09sp017ISI: 000269040900004Scopus ID: 2-s2.0-68949189188OAI: oai:DiVA.org:kth-18692DiVA: diva2:336739
Note

QC 20100525

Available from: 2010-08-05 Created: 2010-08-05 Last updated: 2016-12-09Bibliographically approved

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Sichen, Du

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