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 ›› 2009, Vol. 30 ›› Issue (3): 46-47.

• 工艺技术 • 上一篇    下一篇

4孔浸入式水口结晶器钢水流场的仿真分析及其在连铸生产中的应用

吴国文,李明晓   

  1. 江阴兴澄特种钢铁有限公司,江阴214429
  • 收稿日期:2008-11-24 出版日期:2009-06-01 发布日期:2022-11-24
  • 作者简介:吴国文(1972-),男,工程师,1996年株州冶金技术学院毕业,连铸技术研究。

Simulation Analysis on Liquid Steel Flow Field in Mold with 4 Holes Immersed Nozzle and Its Application in Casting Production

Wu Guowen , Li Mingxiao   

  1. Jiangyin Xingcheng Special Steel Co Ltd, Jiangyin 214429
  • Received:2008-11-24 Published:2009-06-01 Online:2022-11-24

摘要: 为减少轴承钢300 mm×300 mm连铸坯的碳偏析,通过CFX-4.4软件仿真分析了连铸结晶器内钢水流动和传热凝固过程,探讨了有关工艺参数和浸入式水口结构的关系。实践表明,通过4孔水口替代直孔水口,铸坯的碳偏析级别由1.0~2.0级降至1.0~1.5级,采用4孔水口中心碳偏析≤1.0级占79%,直孔水口仅为50%。

关键词: 轴承钢, 连铸方坯, 4孔浸入式水口, 中心碳偏析

Abstract: Liquid steel flow and heat transfer-solidification process were simulated and analyzed by CFX4 4 software ,and relation between relative process parameters and immersed nozzle structure has been discussed in order to decrease carbon segregation of 300 mm X 300 mm cast bloom of bearing steel. Production practice showed that a immersed nozzle with 4 holes was used instead of original one with straight hole, the center carbon segregation rating of cast bloom decreased from 1. 0 ~ 2. 0 to 1. 0 ~ 1. 5 , and the percentage of ≤1. 0 rating of bloom with using 4 holes nozzle was 79% while that with using straight hole nozzle was only 50% .

Key words: Bearing Steel, Cast Bloom, Immersed Nozzle with 4 Holes, Center Carbon Segregation