Surface Tension and Temperature Effect on Entrapment of Bubbles and Particles in Continuous Casting of Steel
The entrapment behavior of Ar bubbles onto the solidifying front of molten steel in the continuous casting mold was investigated. The dynamic model of bubble and particle entrapment was developed in order to consider the effect of surface tension gradient induced forces(Marangoni force) due to the gradient of sulfur concentration and temperature. The numerical analysis and water model experiment were performed to apply the present model for various conditions. The calculation result is compared with experimental results and plant data in continuous casting mold as well. It shows that the thermal Marangoni force could play an important role and this model predicts the bubble behavior in the vicinity of solid/liquid interface more precisely.
bubble continuous casting surface tension gradient marangoni force
Sang-Min Lee Sang-Joon Kim Hae-Geon Lee
Graduate Institute of Ferrous Technology, Pohang University of Science and Technology, 31 San Pohang kyoungbuk, Korea
国际会议
The 2nd International Symposium on Clean Steel(第二届洁净钢生产技术学术研讨会)
沈阳
英文
220-226
2011-08-23（万方平台首次上网日期，不代表论文的发表时间）