Study on Carburizing Behavior of Thin Slab Continuous Casting

Author of the article:SHI Shudong, GAO Chongguang, ZHANG Hucheng

Author's Workplace：Department of Steel Rolling, Shougang Jingtang Iron & Steel Co., Ltd., Tangshan 063200, China

Key Words：thin slab continuous casting; carbon increase; covering agent; protecting slag

Abstract：Carburization in continuous casting process will affect the quality of slabs. Excessive carbon content will result in product degradation and low yield of finished products. The related factors and behaviors of recarburization in the process of thin slab continuous casting were analyzed. The results show that in the process of continuous casting, the coating agent and the protective slag play a major role in the carburization. In the production process, the carbon mass fraction of the coating agent and the protective slag and the fluctuation of the molten metal level in the pouring process should be controlled.