期刊文献+

Numerical simulation of A1203 deposition at a nozzle during continuous casting 被引量:2

Numerical simulation of A1203 deposition at a nozzle during continuous casting
下载PDF
导出
摘要 The effects of various factors, such as argon flow rate and slide gate opening ratio, on the alumina deposition rate were researched by the numerical simulation method. The pressure in the nozzle is significantly affected by argon flow rate and slide gate opening ratio. To keep positive pressure in the nozzle, the argon flow rate should be increased with a decrease in slide gate opening ratio. The effect of argon flow rate on the alumina deposition rate depends on the condition of opening ratio or casting speed. The effect of increasing the argon flow rate on the deposition rate is not obvious when the opening ratio is small. The A1203 deposition rate decreases significantly with an increase in argon flow rate when the argon flow rate is low, but it decreases slowly when the argon flow rate reaches a certain value. The alumina deposition rate is linear with alumina content at different slide gate opening ratios and argon flow rates. The observed thickness of the deposition layer at the bottom and outlet of a real clogged nozzle is almost equal to the result of the numerical simulation. The effects of various factors, such as argon flow rate and slide gate opening ratio, on the alumina deposition rate were researched by the numerical simulation method. The pressure in the nozzle is significantly affected by argon flow rate and slide gate opening ratio. To keep positive pressure in the nozzle, the argon flow rate should be increased with a decrease in slide gate opening ratio. The effect of argon flow rate on the alumina deposition rate depends on the condition of opening ratio or casting speed. The effect of increasing the argon flow rate on the deposition rate is not obvious when the opening ratio is small. The A1203 deposition rate decreases significantly with an increase in argon flow rate when the argon flow rate is low, but it decreases slowly when the argon flow rate reaches a certain value. The alumina deposition rate is linear with alumina content at different slide gate opening ratios and argon flow rates. The observed thickness of the deposition layer at the bottom and outlet of a real clogged nozzle is almost equal to the result of the numerical simulation.
出处 《Journal of University of Science and Technology Beijing》 CSCD 2008年第3期227-235,共9页 北京科技大学学报(英文版)
基金 the State Economic and Trade Commission of China(No.01BK-098-02-07)
关键词 continuous casting NOZZLE CLOGGING numerical simulation continuous casting nozzle clogging numerical simulation
  • 相关文献

参考文献13

  • 1Huixiang Yu Guosen Zhu Xinhua Wang Jiongming Zhang Wanjun Wang.Influence of submerged entry nozzle clogging on the behavior of molten steel in continuously cast slab molds[J].Journal of University of Science and Technology Beijing,2005,12(4):303-307. 被引量:4
  • 2Sanjib Chakraborty,Yogeshwar Sahai.Effect of holding time and surface cover in ladles on liquid steel flow in continuous casting tundishes[J].Metallurgical Transactions B.1992(2)
  • 3A. H. Castillejos,M. E. Salcudean,J. K. Brimacombe.Fluid flow and bath temperature destratification in gas-stirred ladles[J].Metallurgical Transactions B.1989(5)
  • 4H.Bai,and B.G.Thomas.Effect of clogging,argon injec- tion,and casting conditions on flow rate and air aspiration in submerged entry nozzle steel[].rd Steelmaking Conference Proceedings.2000
  • 5X.M.Feng,and Z.E Ping.-C based submerged nozzle[].Re- fracMater.2002
  • 6D.Rob,B.Bart,and W.Partick.A morphological com- parison between inclusions in aluminium killed steels and deposits in submerged entry nozzle[].Steel Research.2003
  • 7M.Alavanja,R.T.Gass,R.W.Kittridge,and H.T.Tsai.Continuous improvement of practices to reduce tundish nozzle clogging[].Steelmaking Conference Proceedings.1995
  • 8B.G.Thomas,and H.Bai.Tundish nozzle clogging appli- cation of computational models[].Steelmaking Confer- ence Proceedings.2001
  • 9K.G.Rackers,and B.G.Thomas.Clogging in continuous casting nozzles[].Steelmaking Conference Proceedings.1995
  • 10T.R.Meadoweroft,and R.J.Milbourne.A new process for continuous casting aluminum killed steel[].Journal of Metals.1971

共引文献3

同被引文献48

引证文献2

二级引证文献4

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部