Numerical Simulation on Optimization of Inclination of Submerged Nozzle for 220mm x 1600mm Slab Casting and Application

宁林新; 解家英; 刘金刚; 张利君

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Numerical Simulation on Optimization of Inclination of Submerged Nozzle for 220mm x 1600mm Slab Casting and Application

更新时间：2026-01-21

- Numerical Simulation on Optimization of Inclination of Submerged Nozzle for 220mm x 1600mm Slab Casting and Application
- Special Steel Vol. 39, Issue 1, Pages: 9-12(2018)
- 作者机构：
  
  1. 首钢技术研究院,北京,100043
  2. 绿色可循环钢铁流程北京市重点实验室,北京,100043
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：03 August 2017，
  
  Online First：28 June 2022，
  
  Published：28 June 2018
- 稿件说明：
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宁林新, 解家英, 刘金刚, et al. Numerical Simulation on Optimization of Inclination of Submerged Nozzle for 220mm x 1600mm Slab Casting and Application[J]. Special Steel, 2018, 39(1): 9-12.
DOI：

宁林新, 解家英, 刘金刚, et al. Numerical Simulation on Optimization of Inclination of Submerged Nozzle for 220mm x 1600mm Slab Casting and Application[J]. Special Steel, 2018, 39(1): 9-12. DOI：

摘要

使用数值模拟方法研究了拉速0.9m/min时

水口倾角-7°~-11°对220mm×1600mm板坯结晶器内坯壳厚度、坯壳温度和自由液面流动的影响。模拟和应用结果得出

以拉速0.8m/min

水口倾角-15°工艺下钢液流动为标准

通过对比计算结果与标准工艺曲线

确定在0.9m/min拉速时

水口倾角为-11°为最佳工艺方案。生产应用结果表明

采用优化工艺后结晶器窄面报警频率由原15次/月降至0次/月

铸坯表面质量也有一定改善。

Abstract

The effect of inclination of submerged nozzle -7°~-11° with casting speed 0.9m/min on shell thickness

shell temperature and free surface flow in mold for 220mm x 1600mm slab has been studied by numerical simulation method. The simulation and application results show that taking liquid steel flow with casting speed 0.8m/min and inclination of nozzle -15° as criterion and compared calculation results with criterion process curves the optimizing process scheme is nozzle inclination -11° with casting speed 0.9m/min. Commercial production application results show that after using the optimization process the mold narrow face alarm rate of recurrence per month from 15 times to 0 time and the quality of cast slab surface has definite improvement.

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