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The use of the LSHR sampler to determine total oxygen contents in the ladle and tundish for different steel grades
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering, Applied Process Metallurgy.
2006 (English)In: Steel Research International, ISSN 1611-3683, Vol. 77, no 8, 550-557 p.Article in journal (Refereed) Published
Abstract [en]

The LSHR sampler is a new development for providing a sample volume large enough to study semi-macro and macro inclusions in clean steel. During the development of the LSHR sampler it was found that the pin where the steel enters the sampler can be used for the determination of the total oxygen content. Therefore, samples were taken at several different steel plants both in the ladle and the tundish as well as for the following five different steel grades: bearing steel, stainless steel 304L and 316L, DWI steel and ULC steel. The general conclusion regarding the sampling is that it was successful for all conditions and steel grades studied. The sample pins were examined for total oxygen content using both the inert-gas-fusion method and the fractional-gas-analysis method. Thereafter, the standard deviations with respect to the total oxygen data were used as a measure of the samples reliability. The general conclusion regarding the total oxygen determinations is that they were accurate for the five steel grades studied and the conditions under which the sampling took place.

Place, publisher, year, edition, pages
2006. Vol. 77, no 8, 550-557 p.
Keyword [en]
sample, total oxygen, ladle, tundish, mould, steel
National Category
Other Engineering and Technologies not elsewhere specified
Identifiers
URN: urn:nbn:se:kth:diva-15958ISI: 000240182900004Scopus ID: 2-s2.0-33748335742OAI: oai:DiVA.org:kth-15958DiVA: diva2:334000
Note
QC 20100525Available from: 2010-08-05 Created: 2010-08-05 Last updated: 2010-11-30Bibliographically approved
In thesis
1. LSHR, the liquid sampling hot rolling method for macro inclusion assessment
Open this publication in new window or tab >>LSHR, the liquid sampling hot rolling method for macro inclusion assessment
2005 (English)Licentiate thesis, comprehensive summary (Other scientific)
Place, publisher, year, edition, pages
Stockholm: KTH, 2005. 34 p.
Keyword
metallurgy, steel, inclusions, oxygen, measurements
National Category
Other Engineering and Technologies not elsewhere specified
Identifiers
urn:nbn:se:kth:diva-515 (URN)91-7283-951-1 (ISBN)
Presentation
2005-02-18, B3, KTH, Brinellvägen 23, Stockholm, 14:00
Supervisors
Note
QC 20101130Available from: 2005-11-28 Created: 2005-11-28 Last updated: 2010-11-30Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
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