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 ›› 2015, Vol. 36 ›› Issue (2): 5-8.

• 试验研究 • 上一篇    下一篇

420 mm x 1100 mm板坯连铸结晶器吹氩对流场和温度场影响的数值模拟

孙健   

  1. 江苏科技大学张家港校区冶金与材料工程学院,张家港 215600
  • 收稿日期:2014-10-12 出版日期:2015-04-01 发布日期:2022-08-20
  • 作者简介:孙健(1980-),男,博士(东北大学),讲师,2003年江苏科技大学(本科)毕业,结晶器模拟研究。
  • 基金资助:
    江苏省自然科学青年基金项目(BK20140516)

Numerical Simulation of Effect of 420 mm x 1100 mm Slab Casting Mold Injecting Argon on Flow Field and Temperature Field of Liquid

Sun Jian   

  1. School of Metallurgy and Materials at Zhangjiagang, Jiangsu Science and Technology University, Zhangjiagang 215600
  • Received:2014-10-12 Published:2015-04-01 Online:2022-08-20

摘要: 利用FLUENT软件计算了不吹氩时420 mm×1100 mm板坯连铸结晶器中心面、水口液面、出口处钢液流场和温度场,并计算了吹氩时结晶器钢液流场的分布特征,优化得出结晶器最佳吹氩量为3 L/min。现场试验表明,吹氩后结晶器内液渣层分布合理,钢流循环较好,液面较稳定,铸坯裂纹报废率降低15%。

关键词: 板坯, 结晶器, 吹氩, 流场, 温度场, 数值模拟

Abstract: The liquid flow field and temperature field at center, nozzle surface and outlet of 420 mm x 1100 mm slab casting mold without injecting argon have been calculated by using FLUENT software, while distribution characters of liquid flow field and temperature field of mold with injeeting argon are calculated to optimize and get the optimum argon injecting flowrate of 3 L/min in mold. The test results in situ show that with injecting argon the distribution of liquid slag layer in mold is reasonable, the circulation of steel flow is better and the liquid surface is stable, as a result the crack rejection rate of casting slab decreases by 15%.

Key words: Slab Casting, Mold, Injecting Argon, Flow Field, Temperature Field, Numerical Simulation