Effect of Stirring Practice on Sulphur and Nitrogen Refining as well as Inclusion Removal in Ladle Treatment
2015 (English)In: Steel Research International, ISSN 1611-3683, E-ISSN 1869-344X, Vol. 86, no 12, 1498-1507 p.Article in journal (Refereed) Published
The effect of different stirring conditions during ladle treatment on the steel cleanliness was studied in the steel plant of SSAB Special Steels in Oxelosund, Sweden. The cleanliness was examined with regards to the contents of sulfur, nitrogen, and large inclusion (>10 mu m). The results showed that vacuum degassing increased the amount of inclusions larger than 10 mu m and that subsequent induction stirring suggested a possible positive effect on the inclusion removal. A shortening of the vacuum degassing time from 24 to 15 min did not affect the nitrogen or sulphur refining. Overall, all heats reached the desired composition and cleanliness levels regardless of the treatment time.
Place, publisher, year, edition, pages
Wiley-VCH Verlagsgesellschaft, 2015. Vol. 86, no 12, 1498-1507 p.
vacuum degassing, induction stirring, inclusions, sulphur, nitrogen
Metallurgy and Metallic Materials
IdentifiersURN: urn:nbn:se:kth:diva-167360DOI: 10.1002/srin.201400501ISI: 000368435400009ScopusID: 2-s2.0-84923238160OAI: oai:DiVA.org:kth-167360DiVA: diva2:813243
QC 201602162015-05-222015-05-222016-02-16Bibliographically approved