Study on Non-Isothermal Crystallization Kinetic of Tundish Covering Fluxes

• DOI: 10.4028/www.scientific.net/amr.266.102
• Publication Date: 2011-07-04T15:15:42Z
• Authors: Li Feng Sun; Hong Po Wang; Chun Lai Liu; Yong Zou; Mao Fa Jiang
• Keywords: 7. Clean energy; 01 natural sciences; 0104 chemical sciences

Basic tundish covering flux is widely used in continuous casting production of high quality steel because of good heat insulation function and the properties of absorbing inclusions. However, there is a serious problem of incrustation caused by basic tundish covering flux in process of pouring and it could be dramatically influenced by the crystallization behaviors of covering flux. In the paper, the crystallization time and ratio of basic tundish covering fluxes were investigated by high temperature electrical resistance furnace and single hot thermocouple apparatus. Based on the crystallization kinetic knowledge and experimental results, Avrami equation was modified, the non-isothermal crystallization equation that could quantitatively describe the crystallization behaviors of basic tundish covering fluxes was established.