Investigation on Quality of Low Carbon Steel Slab Cast on No.2 Slab Caster at Meishan Steel
LUO Gaoqiang1,TANG Ping1,WEN Guanghua1,CHEN Zhiping2,NI Xiuhua2
1. College of Materials Science and Engineering, Chongqing University, Chongqing 400030, China; 2. Technical Centre, Meishan Iron and Steel Co., Nanjing 210039, Jiangsu, China
Abstract：The quality of low carbon steel slabs cast on No.2 slab caster at Meishan Steel was investigated. In order to study the relationship between casting conditions and defects,macrostructure, sulfur print were observed and microstructure was studied by metallographic microscope (MM), scanning electron microscopy (SEM), energy dispersive spectrum (EDS) and total oxygen was analysed for the samples. The results showed that the quality of slabs cast under unsteady conditions is poorer than that cast under steady conditions. At the same time, the large inclusions caused by mold slag entrapping were not found, and the main defects were caused by pinholes, Al2O3 and complex aluminate. The T［O］ analysis indicated that,mean total oxygen content of slabs was 20.86×10-6, and the maximum was less than 27.00×10-6. So, the quality slab is at a comparatively high level comparing with the slabs cast under similar conditions.
罗高强;唐萍;文光华;陈志平;倪修华. 梅山2号板坯连铸低碳钢铸坯质量研究[J]. 钢铁, 2007, 42(8): 36-0.
LUO Gaoqiang;TANG Ping;WEN Guanghua;CHEN Zhiping;NI Xiuhua. Investigation on Quality of Low Carbon Steel Slab Cast on No.2 Slab Caster at Meishan Steel. Iron and Steel, 2007, 42(8): 36-0.
2007, Vol. 42 
