Effects of drawing Speed on Temperature, Solute and Inclusion Distribution in the Continuous Casting Mold of Thin Slab
Author of the article:ZHANG Qi;WU Yanbang;LI Huan;YIN Xiangkai
Author's Workplace：School of Mechanical and Automotive Engineering, Qingdao University of Technology, Qingdao 266520, China
Key Words：continuous casting mold thin slab solute segregation inclusion distribution numerical simulation
Abstract：
The coupling mathematical model of flow field, temperature field, solute field and inclusion in the continuous casting process of 140 mm×35 mm thin slab was established by means of numerical simulation. The results show that the solute concentration in the crystallizer is in the solid-liquid two-phase region, and it decreases gradually in the liquid phase.With the increase of the drawing speed, the most severe segregation area is close to the narrow surface of the crystallizer.The distribution of volume fraction and quantity density of inclusions is basically consistent with the velocity distribution of molten steel in the crystallizer. With the increase of the drawing speed, the integral number and quantity density of the inclusion at the exit become larger, and the closer to the central symmetry plane, the change of the integral number and quantity density of the inclusion becomes more significant.
