Numerical simulation of Tundish Nozzle Clogging during Continuous Casting

Acta Metall Sin

2006, Vol. 42

Issue (10): 1109-1114 DOI:

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Numerical simulation of Tundish Nozzle Clogging during Continuous Casting

FangMing Yuan;;

北京科技大学冶金与生态工程学院

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FangMing Yuan. Numerical simulation of Tundish Nozzle Clogging during Continuous Casting. Acta Metall Sin, 2006, 42(10): 1109-1114 .

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Abstract Molten steel flow field in tundish nozzle and influence of some factors on deposition rate were researched by method of numerical simulation. The deposition near slide gate and bottom of submerged entry nozzle(SEN) is seriously. Flowrate of argon has influence markedly upon pressure in the nozzle, and the pressure drops suddenly down the slide gate. To avoid inspiration of air, flowrate of argon is more than 10L/min when casting speed is 1.2m/min. Deposition rate of alumina is linear with mass concentration of alumina, and is also increasing with casting speed. Blowing argon decreases deposition rate at appropriate range of argon flowrate. The flowrate of 5L/min and 30L/min have the same effect for decreasing deposition rate at the same casting speed.

Key words: continuous casting nozzle clogging numerical simulation

Received: 31 December 2005

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https://www.ams.org.cn/EN/ OR https://www.ams.org.cn/EN/Y2006/V42/I10/1109

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