Formation Mechanism of the Centerline Segregation of Continuous Casting Slab and Soft Reduction Technology
HOU Zi-bing1,CHENG Guo-guang1,RAO Tian-rong2
1. School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China 2. Technology Center, Maanshan Iron and Steel Co., Ltd., Ma’anshan 243000, Anhui, China
Abstract：In order to clear the formation mechanism of the centerline segregation of continuous casting slab, the centerline zone was scanned by original position statistic distribution analysis (OPA). It was found that macro-segregation is made up of the positive segregation band and the negative segregation band in the centerline zone. Furthermore, C, P and S content show obvious negative segregation around the centerline positive segregation band. The formation mechanism of this centerline zone macro-segregation is presented. Finally, the reduction rate and the critical solid phase rate in the soft reduction technology were deduced, and the results mainly agreed with predecessors. All of things show the formation mechanism has rationality to some extent.
侯自兵，成国光，饶添荣. 连铸板坯中心线偏析形成机制与轻压下技术[J]. 钢铁, 2011, 46(11): 45-48.
HOU Zi-bing1,CHENG Guo-guang1,RAO Tian-rong2. Formation Mechanism of the Centerline Segregation of Continuous Casting Slab and Soft Reduction Technology. Iron and Steel, 2011, 46(11): 45-48.
2011, Vol. 46 
