ISSN:1003-8620

CN:42-1243/TF

主管:中信泰富特钢集团股份有限公司

主办:大冶特殊钢有限公司

特殊钢 ›› 2008, Vol. 29 ›› Issue (3): 30-32.

• 试验研究 • 上一篇    下一篇

双辐冷却低过热度浇铸结晶器流场和温度场耦合数值模拟

张俊婷1,  崔小朝1, 刘才2, 晋艳娟1   

  1. 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
  • 收稿日期:2007-11-30 出版日期:2008-06-01 发布日期:2022-12-21
  • 作者简介:张俊婷(1981-),女,硕士生,助教,2003年中北大学(华北工学院)毕业,液态金属流动性和传热研究。
  • 基金资助:
    山西省青年基金资助项目(2008021035)

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

Zhang Junting1,  Cui Xiaochao1,  Liu Cai2 , Jin Yanjuan1   

  1. 1 Department of Science Application, Taiyuan University of Science and Technology, Taiyuan 030024 ;
    2 Hebei Academy o£ Science, Shijiazhuang 050081
  • Received:2007-11-30 Published:2008-06-01 Online:2022-12-21

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。

关键词: 低过热度, 温度场, 流场, 连铸方坯, 数值模拟

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.

Key words: Low Superheat, Temperature Field, Flow Field, Casting Billet, Numerical Simulation