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| Analysis of High Nitrogen Steels Refining Factors With High Pressure and BottomBlown Nitrogen |
| ZHAO Dingguo1,L Xiaofang2,WANG Shuhuan3,BAI Yanjiang3 |
| 1. State Key Laboratory for Advanced Iron and Steel Processes and Products, Central Iron and Steel Research Institute, Beijing 100081, China;2.Resource and Environment Engineering Department Xingtai Vocational and Technical Institute, Xingtai 054000, Hebei, China；3. School of Metallurgy and Energy, Hebei Polytechnic University, Tangshan 063009, Hebei, China |
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Abstract Characters of high nitrogen steels refining with high pressure and bottomblown nitrogen was expounded. Thermal state miniative experiments in the laboratory was carried out and confirmed that the grade of factors which affect the nitrogen content in steels are pressure, the Cr content, the Mn content and temperature which the order is from high to low by analyzing the experimental data. Based on the experimental data and thermodynamic data, expressions of nitrogen content in high nitrogen steels have been established, and the nitrogen content can be calculated with different pressures, the content of different alloy and different temperatures.
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Received: 01 January 1900
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2009, Vol. 44 
