Coupled Numerical Simulation of Flow Field and Temperature Field of Mold Concasting at Low Superheat by Two Rollers Cooling

张俊婷; 崔小朝; 刘才; 晋艳娟

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Coupled Numerical Simulation of Flow Field and Temperature Field of Mold Concasting at Low Superheat by Two Rollers Cooling

更新时间：2026-01-21

- Coupled Numerical Simulation of Flow Field and Temperature Field of Mold Concasting at Low Superheat by Two Rollers Cooling
- Special Steel Vol. 29, Issue 3, Pages: 30-32(2008)
- 作者机构：
  
  1. 太原科技大学应用科学学院,太原,030024
  2. 河北省科学院,石家庄,050081
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：30 November 2007，
  
  Online First：21 December 2022，
  
  Published：21 December 2008
- 稿件说明：
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张俊婷, 崔小朝, 刘才, et al. Coupled Numerical Simulation of Flow Field and Temperature Field of Mold Concasting at Low Superheat by Two Rollers Cooling[J]. Special Steel, 2008, 29(3): 30-32.
DOI：

张俊婷, 崔小朝, 刘才, et al. Coupled Numerical Simulation of Flow Field and Temperature Field of Mold Concasting at Low Superheat by Two Rollers Cooling[J]. Special Steel, 2008, 29(3): 30-32. DOI：

摘要

提出了一种双辊冷却低过热度浇铸150 mm×150 mm方坯的技术

即使从中间包流出的钢水通过转动的冷却辊浇入结晶器内

通过降低钢水过热度改善铸坯质量。借助流体力学分析软件

对0.45C钢水的数值模拟结果发现

通过冷却辊冷却的钢液过热度降低

结晶器中钢水流冲击深度达250 mm

有利于打断凝固前沿的柱状晶

扩大等轴晶比例

同时结晶器内的钢液流场和温度场分布均匀

且铸坯的凝固状况也明显改善。

Abstract

A technology of low superheat casting for 150 mm x 150 mm billet by two rollers cooling has been put forward

that is the molten steel flowing out from tundish into mold through cooling turning rollers to reduce molten steel superheat and improve quality of casting billet. The results of numerical simulation for a 0. 45C steel by hydromechanics analysis software indicated that the superheat of molten steel through cooling roller reduced

the impact depth of molten steel flow in mold was up to 250 mm

it was available to break columnar crystal at forward position of solidification

moreover the molten steel flow field and temperature field in mold distributed homogeneously and the solidification condition of casting billet improved obviously.

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