Oscillation Measurement and Multiphase Flow Simulation of the AOD Process

摘要

For stainless steel production, a two-stage process is mostly employed. Scrap, melt and alloy materials are molten down in the electric arc furnace. Then, the melt is refined in the AOD (Argon Oxygen Decarburization) converter. In the AOD converter, highly chromium-alloyed melt is decarburized by injecting and blowing oxygen and inert gases (N_2, Ar) through submerged side-wall nozzles and a top lance. Depending on the charge materials and the steel grade to be produced, the start carbon contents are between 1.5 % and 4.5 %, and the chromium contents between 10 % and 25 %, respectively.