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| Study on Removal of Inclusions From Molten Steel by Blowing During LF Refining |
| TANG Haiyan1,LI Jingshe1,WANG Jianbin1,SUN Kaiming1,2,WEN Desong1,2 |
| 1. School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China;2. No.1 Steelmaking Plant, Tianjin Pipe Corporation Ltd., Tianjin 300301, China |
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Abstract Based on the water model experimental results, 150 t ladle argon blowing process at No.1 Steelmaking Plant, Tianjin Pipe Corporation Ltd. was improved. Analytical techniques such as tracers, metallographic examination, electrolysis, SEM and EDS were applied to compare the effect of inclusion removal for casing steel treated by two different argon blowing processes during LF refining. The results show that the reduction rate of total oxygen,with microinclusions and largesized inclusions was 35.42%, 59.85% and 93.43% respectively after ladle refining before improvement.The corresponding values of improved process were 44.31%, 64.29% and 95.88%.
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Received: 01 January 1900
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| [4] |
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| [5] |
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2007, Vol. 42 
