Model testing of the bath flow through the tundish of the continuous casting machine

The tundish of the continuous casting machine is considered an important metallurgical unit improving cleanness of cast steel. Findings of laboratory tests are presented in the paper. The objective of the tests was to learn about possibilities of modification of the most important parameters of the bath flow through the tundish. A "cold" model of tundish used for the tests was made to 1 : 8 scale. The flow quality was assessed on the basis of three criteria, value of which was calculated for each of the tested flow variants. The tests proved it was possible to achieve a significant improvement of flow parameters. However one should emphasize the incorrect design can lead also to a considerable worsening of tundish performance. The "cold" model of tundish used for the tests met the similarity criterion based on the Froud number value.