A study on liquid flow field

temperature field and flow characteristics in a 40-50 t tundish with different structure for 4-strand 410 mm x 530 mm bloom caster at steel works has been carried out by using geometric similarity 1：3 water model to get optimum flow control devices. Research results show that in order to meet the requirement of flow field in tundish for 4-strand bloom

the optimized best flow control device for the tundish with channel type induction heating unit is different from that for the tundish without channel type induction heating unit. For the tundish without channel type induction heating unit

by using the optimum scheme i. e. the combined flow control method of turbulent flow control device + "V" type retaining wall with deflector hole + dam

the response time and average residence time of the flow closer to n

ozzle are prolonged

the flow pattern of each nozzle is consistent

the liquid flow characteristics in tundish are obviously improved. The practice in production of steel 40Cr shows that continuous casting heats are up to 8 heat

extreme temperature different between each strand decreases to 4 T and T[O

]

in liquid in tundish is about 10 x 10

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