Experimental Research of Round Bloom Continuous Casting Process
WU Yaoguang1,2,GONG Zhixiang3,ZHANG Jianping3, FAN Dingdong2, LIU Jiankun2,WU Zongshuang3
1. National Engineering and Research Center for Continuous Casting Technology, Central Iron and Steel Research Institute, Beijing 100081, China;2.The First Steelmaking and Rolling Plant , Ma’anshan Iron and Steel Co., Ltd., Ma’anshan 243000, Anhui, China;3. The Technology Center of Ma’anshan Iron and Steel Co., Ltd., Ma’anshan 243000, Anhui, China
Abstract：In order to improve the quality of round blooms, based on technical parameters of round bloom continuous caster at Ma’anshan Iron and Steel Co., Ltd.,Gleeble2000 was used to study the mechanical properties of CL60 round bloom under high temperature.A secondary cooling model was built by theoretical analysis and experimental study,the effect of MEMS parameters on bloom quality was analyzed. The results show that the plasticity of CL60 steel is good enough in the range of 9001200 ℃, the secondary cooling model is able to control the bloom quality, the usage of MEMS can increase the ratio of equiaxed crystal zone, lower segregation and porosity, improve the distribution of inclusions.
2008, Vol. 43 
