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| Water Modeling Experiment of Slab Immersion Nozzle Optimization |
| LUAN Guo-qing,SHEN Qiao-zhen,XU Fei,WU Zhao-huan,ZHENG He-wu,PIAN Jian-feng |
| School of Materials and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, Hubei,China |
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Abstract For the sake of improving the flow field in the mould, physical modeling method is used to research the flow field in the mould for sectional width 200mm×1800mm based on a steel works. Then the study of optimization of the nozzles’ structure and technical parameters was made. The results show that: 1) Casting speed, the shape of the exit, bottom shape of the nozzle, immersion depth, oblique angle of the nozzle exit and area radio of the exit have great influence over the flow field in the mould. When doing the study of optimization, the above should be considered. 2) In the laboratory, the optimum nozzles’ structure parameters is that the oblique angle of the nozzle exit is 15°, area radio of the exit is 2.0, the shape of the exit is racetrack, bottom shape of nozzle is flat-bottom. Considering of the real production, the immersion depth is considered to be 125mm and casting speed is 1.45m/min.
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Received: 28 June 2012
Published: 22 February 2013
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2013, Vol. 32 
