Steel ladle top slag modification method suitable for low-carbon and ultra-low-carbon steel
A technology of ultra-low carbon steel and ladle top slag, which is applied in the field of low carbon, ladle top slag modification, and ultra-low carbon steel ladle top slag modification, which can solve serious environmental pollution, change the oxidation of ladle top slag, and Potential safety hazards and other issues, to meet environmental protection requirements, improve the cleanliness index of molten steel, and change the effect of oxidation
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[0040] Embodiment Ⅰ: steel type: IF steel DC06; actual molten steel amount: 310 tons
[0041] (1) During the tapping process of the converter, argon is not blown into the ladle, and no deoxidizer and slagging material are added;
[0042] (2), after the completion of tapping, add a specific gravity of 5.75g / cm into the ladle 3 Aluminum and iron 934kg. There is no obvious smoke and dust emission during and after the addition of aluminum and iron;
[0043] (3), after tapping finished adding aluminum and iron, add lime 1408kg in ladle. There is no obvious smoke and dust emission during and after lime addition;
[0044] (4) When the RH cycle is completed, 20kg of aluminum particles are added to the molten steel in the vacuum chamber just before the molten steel drops out of the vacuum chamber, and 35kg of aluminum particles are added to the slag surface of the ladle after the hole is broken. There is no obvious smoke and dust emission during and after the addition of aluminum p...
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