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Process model of inclusion separation in a stirred steel ladle
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering, Applied Process Metallurgy.
2005 (English)In: Scandinavian journal of metallurgy, ISSN 0371-0459, Vol. 34, no 1, 41-56 p.Article in journal (Refereed) Published
Abstract [en]

A mathematical model, which can be used as a process model in production, was developed to predict total oxygen content and size distribution of non-metallic inclusions in an agitated steel melt. Using a given pre-deoxidation total-oxygen-content value and calculated velocity and turbulence data (induction or gas stirring), model output can be generated as a function of stirring time. Predicted initial inclusion size distributions were in good agreement with inclusion size distributions quantitatively determined by light optical microscopy and classification according to the Swedish standard SS 11 11 16. Results from simulations carried out for the two types of stirring indicated that the model can predict total oxygen content and inclusion size distribution as a function of time for induction and gas stirring in an acceptable way.

Place, publisher, year, edition, pages
2005. Vol. 34, no 1, 41-56 p.
Keyword [en]
inclusions, ladle, model, oxygen content, separation, steel, stirring, mathematical-model, fluid-flow, collision, growth, field
URN: urn:nbn:se:kth:diva-14514ISI: 000226853100006ScopusID: 2-s2.0-14044250093OAI: diva2:332555
QC 20100525Available from: 2010-08-05 Created: 2010-08-05Bibliographically approved

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Jonsson, Lage T. I.
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