The physical model of a ten-strand bilet caster tundish was established to study the effects of various lfow control devices on the melt lfow. Before and after the optimization of the melt lfow, the inclusion removal in the tundish was evaluated by plant trials. The physical modeling results show that when combined with a baflfe, the turbulence inhibitor, instead of the impact pad, can signiifcantly improve the melt lfow. A turbulence inhibitor with a longer length of inner cavity and without an extending lip at the top of the sidewal seems to be efifcient in the improvement of the melt lfow. Various types and designs of baflfes al inlfuence the lfow characteristics signiifcantly. The “V” type baflfes are better than the straight baflfes for lfow control. The “V” type baflfe with four inclined holes at the sidewal away from the stopper rods is better in melt lfow control than the one with one inclined hole at each sidewal. The combination of a wel-designed turbulence inhibitor and an appropriate baflfe shows high efifciency on improving the melt lfow and an optimal proposal was presented. Plant trials indicate that, compared with the original tundish conifguration in prototype, the inclusions reduce by 42% and the inclusion distribution of individual strands is more similar with the optimal one. The optimal tundish conifguration effectively improves the melt lfow in the ten-strand bilet caster tundish.
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