Development of Secondary Cooling Water Distribution Model for Large-Size Round Bloom Casting

曾智; 韩占光; 李景; 张家泉

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Development of Secondary Cooling Water Distribution Model for Large-Size Round Bloom Casting

更新时间：2026-01-21

- Development of Secondary Cooling Water Distribution Model for Large-Size Round Bloom Casting
- Special Steel Vol. 32, Issue 3, Pages: 1-4(2011)
- 作者机构：
  
  北京科技大学冶金与生态工程学院,北京,100083
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：22 November 2011，
  
  Online First：17 October 2022，
  
  Published：17 October 2011
- 稿件说明：
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曾智, 韩占光, 李景, et al. Development of Secondary Cooling Water Distribution Model for Large-Size Round Bloom Casting[J]. Special Steel, 2011, 32(3): 1-4.
DOI：

曾智, 韩占光, 李景, et al. Development of Secondary Cooling Water Distribution Model for Large-Size Round Bloom Casting[J]. Special Steel, 2011, 32(3): 1-4. DOI：

摘要

根据钢厂新建Φ600 mm圆坯连铸机的主要技术参数

建立柱坐标一维非稳态连铸坯凝固传热数学模型

运用有限差分法求解并编制相关程序

分析拉速、过热度、冷却强度对铸坯温度的影响

实现在给定水量下连铸坯温度场的计算。浇铸Φ500 mm轴承钢GCr15SiMn计算得出拉速每提高0.1 m/min

出结晶器处凝固坯壳厚度减薄约7.9 mm

凝固终点延长6.7 m。

Abstract

Based on main technical parameters of a new built Φ600 mm圆坯连铸二次冷却数学模型600 mm round bloom caster in steel works

a math model for heat transfer and solidification of one-dimensional non-steady state casting bloom with cylindrical coordinates has been established

and the casting speed

superheating degree and intensity of cooling on temperature of casting bloom is analyzed by using finite differential method to solve and assemble program to carry out the calculation of temperature field of bloom with a given water flow rate. It is obtained with calculation on casting Φ500 mm bearing steel GCr15SiMn bloom that with every increasing casting speed 0. 1 m/min

the thickness of solidified shell of bloom at outlet of mold decreases by 7. 9 mm and the solidification terminal point is prolonged by 6. 7 m.

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