吹氩条件下结晶器钢渣液面波动行为

doi:10.13228/j.boyuan.issn1005-4006.20210137

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Abstract In order to reveal the behavior of the steel-slag interface of the mold under different process conditions, a mold with a section of 1 000 mm×230 mm is numerically simulated by Fluent fluid mechanics software. The effects of different casting speeds (0.9-1.5 m/min), nozzle angle (12°-15°) and argon blowing rate (0-6 L/min) on the speed and wave height of the mold steel-slag interface were analyzed. The simulation results show that when the argon blowing rate 4 L/min, the increase of the casting speed will reduce the disturbance of the steel-slag interface floating on the argon bubble near the submerged entry nozzle, but the wave height near the narrow surface of the mold will increase with the increase of the casting speed. The fluctuation of the interface is aggravated, the fluctuation near the narrow surface is smoothed by the increase of the consumption of the turbulent energy of the steel liquid from the floating argon bubble, the nozzle angle has a greater influence on the steel-slag interface, the nozzle angle is smaller, the floating distance of the argon bubble is shorter, and the wave height and speed are relatively large around the nozzle and near the narrow surface.

Key words： steel slag interface numerical simulation argon blowing mold flow field surface flow rate

Received: 19 November 2021

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	Articles by authors
	LIU Tong-wei
	ZHANG Yan-chao
	ZHANG Cai-jun
	ZHAI Jin-jun

Cite this article:

LIU Tong-wei,ZHANG Yan-chao,ZHANG Cai-jun等. Study on fluctuation behavior of mold steel slag surface under blowing conditions[J]. CONTINUOUS CASTING, 2022, 41(3): 18-24.

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http://www.chinamet.cn/Jweb_lz/EN/10.13228/j.boyuan.issn1005-4006.20210137 OR http://www.chinamet.cn/Jweb_lz/EN/Y2022/V41/I3/18

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