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http://dx.doi.org/10.3365/KJMM.2010.48.05.424

Effects of Additional Bubbling on RH Vacuum Degassing Process with Water Model Experiment  

Jang, Young-Hwan (Department of Materials Science and Engineering, Seoul National University,Research Center for Iron and Steel, RIAM, Seoul National University)
Kim, Young-Tae (Department of Materials Science and Engineering, Seoul National University,Research Center for Iron and Steel, RIAM, Seoul National University)
Yi, Kyung-Woo (Department of Materials Science and Engineering, Seoul National University,Research Center for Iron and Steel, RIAM, Seoul National University)
Publication Information
Korean Journal of Metals and Materials / v.48, no.5, 2010 , pp. 424-429 More about this Journal
Abstract
In the RH process, it is possible to obtain quicker processing times by enhancing the decarburization rates at a low carbon range of steel melt through Ar gas injection into the vacuum vessel. The RH decarburization reaction was simulated through a dissolved oxygen removal reaction by injecting nitrogen into a 1/8 scale RH water model system. The gas nozzles for the N$_{2}$ injection into the vacuum vessel were located at the lowest level of the vessel's outer wall. The nitrogen bubbling in the vacuum vessel resulted in an increase in the reaction rate constant, which rose in accordance with an increase in the bubbling flow rate and number of nozzles used. However, there was almost no variation in the reaction rate constant, which depended on the horizontal positions of the bubbling nozzles.
Keywords
metals; purification; water model;
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Times Cited By KSCI : 2  (Citation Analysis)
Times Cited By SCOPUS : 2
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