STUDYCONDITIONS OF NON-METALLIC INCLUSIONS FLOTATION DURING ARGON INJECTION OF LIQUID BATH TUNDISH CCM. REPORT 2
https://doi.org/10.17073/0368-0797-2014-1-19-25
Abstract
Since using physical modeling analysis the phenomenon of mixing metal and slag in the place argon bubbles output into atmosphere had been explored. It was found that the best results are achieved when the bubble flow purge mode and a diameter of bubbles when they reach the slag phase at 3.25 mm. The mass of the droplets of metal trapped in the slag is 0,6 g, the rate of movement in the slag phase is 1 m/s, while the penetration depth is 3 cm and a residence time is 0,4 sec, which provides optimum conditions for refining of steel in an intermediate ladle. This creates optimum conditions for refining of steel in the tundish. It is shown that under these parameters purge during 1 minute, current line imposed about 50 liters or 350 kg of steel.
About the Authors
A. N. Smirnov
National Technical University of Donetsk
Ukraine
Ukraine
V. G. Efimova
Kiev Polytechnic Institute
Ukraine
Ukraine
A. V. Kravchenko
National Technical University of Donetsk
Ukraine
Ukraine
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Review
For citations:
Smirnov A.N., Efimova V.G., Kravchenko A.V. STUDYCONDITIONS OF NON-METALLIC INCLUSIONS FLOTATION DURING ARGON INJECTION OF LIQUID BATH TUNDISH CCM. REPORT 2. Izvestiya. Ferrous Metallurgy. 2014;57(1):19-25. (In Russ.) https://doi.org/10.17073/0368-0797-2014-1-19-25
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