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| 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 |
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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.
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Received: 01 January 1900
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| [1] |
YAN Xue-qiang1,2,ZHENG Wan1,2,WANG Guo-wei1,2,YAN Wen1,LI Guang-qiang1,2. Effect of microporous MgO refractories on steel cleanliness[J]. JOURNAL OF IRON AND STEEL RESEARCH , 2020, 32(6): 483-490. |
| [2] |
LI Bo, YANG Fei-fei, LIU Hua-song, LUO Ming, ZHANG Zhong-hua, ZHANG Jia-quan. Effect of solidification structure on banded defects of high strength corrosion resistant tubes[J]. Iron and Steel, 2020, 55(3): 87-95. |
| [3] |
SANG Sheng-feng，WEN Yang，LIU Xue-liang，KE Yu-jun，ZHANG Jian-cheng，SUN Jian-shuang. Inspection and treatment of raw material defects in Shougang Jingtang 1420 pickling line-tandem cold mill[J]. PHYSICS EXAMINATION AND TESTING, 2020, 38(2): 13-. |
| [4] |
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| [5] |
LIU Peng, SUI Ya-fei, XU Gang-jun, ZHOU Jun-jun, ZENG Quan-wen. Inclusion generation and control of low carbon steel[J]. Iron and Steel, 2020, 55(2): 67-74. |
| [6] |
. Analysis and control of slag inclusion defect of low carbon steel slab[J]. , 2020, 45(2): 0-0. |
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2007, Vol. 42 
