Physical Simulation on Bubbles Movement in Mold for Slab with Nozzle Argon Injection Process

冯巍; 胡明谦; 李德强; 刘承军; 姜茂发

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Physical Simulation on Bubbles Movement in Mold for Slab with Nozzle Argon Injection Process

更新时间：2026-01-21

- Physical Simulation on Bubbles Movement in Mold for Slab with Nozzle Argon Injection Process
- Special Steel Vol. 28, Issue 5, Pages: 28-30(2007)
- 作者机构：
  
  1. 东北大学材料与冶金学院,沈阳,110004
  2. 本溪钢铁集团公司,本溪,117000
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：16 April 2007，
  
  Online First：13 February 2023，
  
  Published：13 February 2007
- 稿件说明：
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冯巍, 胡明谦, 李德强, et al. Physical Simulation on Bubbles Movement in Mold for Slab with Nozzle Argon Injection Process[J]. Special Steel, 2007, 28(5): 28-30.
DOI：

冯巍, 胡明谦, 李德强, et al. Physical Simulation on Bubbles Movement in Mold for Slab with Nozzle Argon Injection Process[J]. Special Steel, 2007, 28(5): 28-30. DOI：

摘要

以1300 mm × 230 mm板坯连铸结晶器的相似比0.4的物理模型

研究了拉速1.1 m/min、水口插入深度160 mm、水口吹气量0～15 L/min时连铸结晶器内气泡的运动行为

及其对钢液流股冲击深度、液面波动和液面裸露的影响。实验结果表明

随水口吹气量增加

结晶器内气泡的数量和尺寸都有所增加

气泡在钢液内水平方向扩散范围增大

且气泡最大穿透深度亦增加;当水口吹气量增大到5 L/min时

气泡逸出后在液面由全部向水口方向运动变为以集中逸出位置为中心的四散运动。

Abstract

The bubbles movement behavior in mold with cast speed 1.1 m/min

nozzle submerged depth 160 mm and gas flow rate in nozzle 0～15 L/min

and the effect of bubbles movement on impact depth

liquid level fluctuation and surface naked of mold powder have been studied by physical model in the ratio 0.4 to 1300 mm × 230 mm slab mold. Test results showed that with increasing gas flow rate in nozzle all the amount and size of bubbles in mold increased

the bubbles horizontal dispersion in liquid steel enlarged and the bubbles maximum penetration depth increased; as the gas flow rate in nozzle increased to 5 L/min

the flow pattern of gas bubbles at liquid surface changed from all movement towards nozzle to dispersion movement at the concentration escape position.

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