Mold Thermo-Mechanical Rigidity Criterion for Surface Quality of Continuous Casting of Steel

DOI: 10.4236/msa.2013.41006   PDF   HTML   XML   6,739 Downloads   8,886 Views   Citations


A theoretical investigation of heat flow, solidification and solid shell resistance “Ic” has been undertaken by using a mathematical model and previous plant trials. The ultimate purpose is to develop operating conditions and therefore to improve the surface quality for continuously cast steel slabs. A new simple criterion called mold thermomechanical rigidity “MTMR” has been proposed to evaluate and to improve these purposes. The parameters of MTMR and its non-dimensional number which use to control the surface defects are present in this investigation. Previous plant trails of slab surface defects formation have been investigated thermo-mechanically with this criterion. The predications show that this criterion is very sensitive of operating parameters and is a significant qualitative tool to evaluate the surface quality. From examination of the behavior of MTMR, the susceptibility and mechanism of surface defects formations with MTMR have been primarily discussed.

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M. El-Bealy, "Mold Thermo-Mechanical Rigidity Criterion for Surface Quality of Continuous Casting of Steel," Materials Sciences and Applications, Vol. 4 No. 1, 2013, pp. 39-51. doi: 10.4236/msa.2013.41006.

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The authors declare no conflicts of interest.


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