The Influence of Critical Turning Point of Argon Flowrate Ascension on Decarburization Rate of RH Treatment for Ultra-Low Carbon Steel

Abstract:

Through the mathematical model of RH vacuum decarburization, the decarburization mechanism of argon gas bubble surface was studied. By the RH equipment of Shougang Qian’an Iron and Steel Co. Ltd for background, the calculated results of this model showed that the decarburization quantity of argon gas bubble surface was about 8% that of overall decarburization. In the initial conditions was constant, the ascension of argon flowrate will promote the decarburization quantity of argon gas bubble surface, free surface and splash droplet surface as well as reducing the decarburization quantity of internal liquid steel decarburization. Based on the commercial production data, it was found the best opportunity of ascension blow argon flowrate to acquire lower carbon content in relatively shorter time.

• Periodical: Advanced Materials Research (Volumes 284-286)
• Pages: 1025-1030
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.284-286.1025
• Online since: July 2011
• Authors: Chong Wei Li, Guo Guang Cheng, Ai Min Cui
• Keywords: Argon Flowrate, Decarburization Rate, Mathematical Models, RH Refining

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