Simulation Study of Inclusions Motion in Thin Slab Mould for Continuous Casting
Author of the article:ZHANG Qi;LI Huan;WU Yanbang;YIN Xiangkai
Author's Workplace：School of Mechanical and Automotive Engineering,Qingdao University of Technology,Qingdao 266520,China
Key Words：continuous casting thin slab crystallizer inclusions trajectory
Abstract：
The motion of inclusions in thin slab mould was analyzed by water simulation and numerical simulation.By analyzing the motion diagram of inclusions captured by high-speed micro-camera,Proanalyst software,the motion path of inclusions in the crystallizer was obtained.At the same time,the motion path of inclusions in the mould is calculated by Lagrange method,and the influence of drawing speed and submerged nozzle depth on the motion path of inclusions are analyzed.The results show that the motion path of inclusions in the crystallizer is complex.The drawing speed is lower,the depth of dipping into the nozzle is shallower,and it is for the inclusion to circle in the upper backflow area is easier.The drawing speed is greater,the depth of the submerged nozzle is deeper,and the inclusion is easy to circle in the lower backflow area.Increasing the residence time of the inclusions in the mould can prevent the inclusions from entering into the billets and forming defects.
