Influence of Structure Optimization of a 40 t T-Baffled Six-Strand Tundish on Inclusions in High Carbon Steel

王勇; 成泽伟; 陈伟庆; 曹长法; 王广顺

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Influence of Structure Optimization of a 40 t T-Baffled Six-Strand Tundish on Inclusions in High Carbon Steel

更新时间：2026-01-21

- Influence of Structure Optimization of a 40 t T-Baffled Six-Strand Tundish on Inclusions in High Carbon Steel
- Special Steel Vol. 35, Issue 1, Pages: 29-32(2014)
- 作者机构：
  
  1. 北京科技大学冶金与生态工程学院,北京,100083
  2. 青岛钢铁公司技术中心,青岛,266043
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：20 August 2013，
  
  Online First：05 September 2022，
  
  Published：05 September 2014
- 稿件说明：
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王勇, 成泽伟, 陈伟庆, et al. Influence of Structure Optimization of a 40 t T-Baffled Six-Strand Tundish on Inclusions in High Carbon Steel[J]. Special Steel, 2014, 35(1): 29-32.
DOI：

王勇, 成泽伟, 陈伟庆, et al. Influence of Structure Optimization of a 40 t T-Baffled Six-Strand Tundish on Inclusions in High Carbon Steel[J]. Special Steel, 2014, 35(1): 29-32. DOI：

摘要

通过几何相似1:3的水模型对原中间包和优化的增设挡墙中间包进行去除夹杂物的模拟试验

根据水模拟试验结果

优化了40 t钢包结构并进行高碳钢82A和72A的生产试验。结果表明

增设挡墙优化结构后

中间包内滞止时间和实际停留时间延长

活塞区比例提高

而死区比例减小;中间包结构优化后去除夹杂物的效果明显提高

采用优化的增设挡墙中间包生产的高碳钢Φ5.5 mm盘条中夹杂物数量由原来的2.06~2.52个/mm

降至0.20~1.06个/mm

最大夹杂物尺寸由原来的(9.87~13.37)μm×(6.29~9.44)μm降至(4.01~8.33)μm X (3.41~7.62)μm;铸坯中大型夹杂物数量和尺寸也相应降低。

Abstract

The simulation test on removing inclusions in original tundish and optimum tundish established an additional retaining wall has been carried out by using a geometric similarity 1: 3 water model

and based on waler-simulated test results

the structure of 40 t tundish is optimized and the pilot production of high carbon steel 82A and 72A is carried out. Results show that with optimum tundish established an additional retaining wall

the stagnation time and actual retained time are prolonged

the piston area ratio increases

and the dead zone ratio reduces ； with optimum tundish structure the effect of inclusion removal improves significantly

the inclusion number in Φ5. 5 mm coil of high carbon steel produced with optimum tundish established an additional retaining wall decreases from original 2. 06 ~ 2. 52 inclusion

/mm

to 0. 20 ~ 1.06 inclusion/mm

the size of maximum inclusion decreases from original (9. 87 ~ 13. 37) μm x (6. 29 ~ 9. 44)μm to (4. 01 ~ 8. 33 )μm x (3.41 ~ 7. 62 )μm； the number and size of large inclusions in casting billet also decrease correspondingly.

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