Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Swirling flow effect in immersion nozzle on control of heat and mass transport in casting teeming
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering, Applied Process Metallurgy.
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering, Applied Process Metallurgy.
Show others and affiliations
2006 (English)In: 2006 TMS Fall Extraction and Processing Division, 2006, 485-498 p.Conference paper, Published paper (Refereed)
Abstract [en]

With increasing requirement of steel productivity and quality in continuous casting in the conventional casting system using an immersion nozzle, it is very difficult to establish a reasonable molten flow pattern. In order to overcome this difficulty, we propose a new method of imparting swirling motion onto the flow in the immersion nozzle and to control the flow pattern in the mold. Following results have been obtained during the studies. For the case of slab continuous casting mold: High amplitudes of oscillation with a period of 10 to 15 seconds are observed in the outlet flow of the immersion nozzle and meniscus flow in the conventional casting system, while these phenomena are remarkably suppressed using swirling motion in the immersion nozzle, which leads to very calm and uniform flow pattern at the outlets of the immersion nozzle, in the mold and on the meniscus in the mold; For the case of billet continuous casting mold: (1) heat and mass transfer near the meniscus can be remarkably activated compared with a conventional straight type immersion nozzle without swirl, and (2) Quite different mold flow patterns are observed between the divergent and straight immersion nozzles. Heat and mass transport in the mold using the divergent nozzle is much more reasonable compared to that of straight nozzle. The findings, mentioned above, are very useful to control the flow pattern in the slab, and billet continuous casters. Such effectiveness of swirling flow in the SEN on the mold flow has been put into practical use. As a result, remarkable progress on the quality and production of continuous casting products has been observed in practical application.

Place, publisher, year, edition, pages
2006. 485-498 p.
Series
2006 TMS Fall Extraction and Processing Division: Sohn International Symposium, 2
Keyword [en]
Billet mold, Continuous casting, Flow pattern in mold, Slab mold, Swirling flow in nozzle, Flow patterns, Heat transfer, Mass transfer, Swirling flow, Billet molds, Mass transport, Slab molds, Nozzles
National Category
Metallurgy and Metallic Materials
Identifiers
URN: urn:nbn:se:kth:diva-155861ISI: 000241805400043Scopus ID: 2-s2.0-33846052416ISBN: 0873396332 (print)ISBN: 9780873396332 (print)OAI: oai:DiVA.org:kth-155861DiVA: diva2:764374
Conference
2006 TMS Fall Extraction and Processing Division: Sohn International Symposium, 27 August 2006 through 31 August 2006, San Diego, CA
Note

QC 20141119

Available from: 2014-11-19 Created: 2014-11-13 Last updated: 2014-11-19Bibliographically approved

Open Access in DiVA

No full text

Scopus

Search in DiVA

By author/editor
Jönsson, PärHallgren, LineKholmatov, Shavkat
By organisation
Applied Process Metallurgy
Metallurgy and Metallic Materials

Search outside of DiVA

GoogleGoogle Scholar

isbn
urn-nbn

Altmetric score

isbn
urn-nbn
Total: 49 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf