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Oscillation mark formation in continuous

Jessica Elfsberg

2026encontinuous castingoscillation markssteelcoppersurface qualityinterfacial tension

Abstract

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Oscillation marks are ripples formed on the surface of continuously cast material. They may cause cracking and decrease the yield of the process since some material must be grinded away to avoid crack growth. A study of break-out shells, a full-scale water model study and full-scale experiments in four different plants have been performed to analyse the formation of oscillation marks. The hypothesis initiating the studies was that there is an optimal oscillation frequency. Material cast at the optimal frequency will have smaller oscillation marks and fewer cracks and, maybe most important, all marks are of the same character and depth. The optimal oscillation frequency is determined by its relation to casting velocity and interfacial tension between metal and protective medium, e.g. slag. The results from the experiments indicate that there is an optimal condition for minimizing oscillation marks and improving the quality of continuously cast material.

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Cite This Work

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  title={Oscillation mark formation in continuous},
  author={Jessica Elfsberg},
  year={2026},
  language={en}
}
TY  - JOUR
TI  - Oscillation mark formation in continuous
AU  - Jessica Elfsberg
PY  - 2026
LA  - en
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