为研究RH-MFB精炼工艺对脱碳过程的影响,将脱碳机理确定为钢液本体脱碳与CO克服静压力上浮、氩气泡表面脱碳和飞溅液滴脱碳,根据脱碳反应动力学和质量守恒原理建立了RH-MFB脱碳数学模型.计算结果表明:降低初始碳含量、增大初始氧含量可使脱碳终点碳含量降低;提高压降速率和吹氩流量、增大浸渍管内径使得脱碳速率增大;在固定氧气流量下,随着吹氧时间的延长,脱碳终点碳含量降低,但脱碳终点氧含量升高.
参考文献
| [1] | Kita Y .Refining Technology for Interstitial Free Steel in Kakogawa Works[J].Steelmaking Conference Proceedings,1990,73:79-84. |
| [2] | 植村健一郎 .RH脱ガスによる極低炭素鋼の製造[J].神户製鋼技報,1991,41(04):24-27. |
| [3] | Koji Yamaguchi .Effect of Refining Conditions for Ultra Low Carbon Steel on Decarburization Reaction in RH Degasser[J].ISIJ International,1992,32(01):126-135. |
| [4] | M-S.Chiang;C-T.Lin .Application of Off-Gas Analysis for RH Decarburization Process[J].SEAISI Quarterly,1997(2):27-30. |
| [5] | 斋藤忠 .RH脱ガス装置における真空脱炭速度[J].神户製鋼技報,1986,36(01):40-42. |
| [6] | Yano M;Kitamura S .Improvement of RH Refining Technology for Production of Ultra Low Carbon and Low Nitrogen Steel[J].Steelmaking Conference Proceedings,1994,77:117-120. |
| [7] | Kato Y .Development of Rapid Decarburization Technology by Combined Process of Converter and RH Degasser for Ultra Low Carbon Steel[J].Kawasaki Steel Technical Report,1995,32(05):25-32. |
| [8] | M. Kamo;K. Adachi;M. Nambu .Longer life in RH with oxygen top blowing system[J].Steelmaking Conference Proceedings,1997(0):483-486. |
| [9] | Didier Huin .Kinetics of Vacuum Decarburization of Ultra Low Carbon Steels[J].Steelmaking Conference Proceedings,2001,84:601-611. |
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