| Abstract Scope |
In this paper, the mixing energy in the molten pool when the bottom of ladle is blown with Ar, N2 and CO2 is calculated, and the experimental data are analyzed. The results show that under the given experimental conditions, the stirring energy of the molten pool is 5.157W when the bottom is blown Ar, N2, and 10.17W when the bottom is blown CO2. When the mixing temperature increased from 1823K to 1923K, the mixing energy of the bottom-blown CO2 molten pool gradually increased from 11.56W to 12.26W. When the initial carbon content of molten pool decreases from 0.5% to 0.1%, the reaction ratio of CO2 to molten pool [C] decreases, and the stirring energy of molten pool with bottom-blown CO2 decreases from 12.05W to 9.088W. The effect of CO2 blowing at the bottom of ladle is better than that of Ar and N2, and the development prospect is broad. |