Method for stabilizing semi-steel quality
A stable and high-quality technology, applied in the field of metallurgy, can solve the problems of large quality fluctuation of semi-steel, large temperature fluctuation, affecting the control accuracy of converter smelting end point, etc.
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[0024] A 120t converter in a factory uses vanadium-containing hot metal to extract vanadium to make steel. The carbon and temperature of vanadium-containing hot metal, the carbon and temperature changes of semi-steel after the first step of the present invention, and the use effect after the second step are shown in Table 2.
[0025] Table 2 Effect of the present invention
[0026]
[0027] As can be seen from the above table 2, when other conditions are all the same, when the present invention is adopted to extract vanadium from special molten iron, the semi-steel carbon and semi-steel temperature at the end point of vanadium extraction converter smelting are all significantly improved, and the semi-steel after vanadium extraction is also significantly improved. After the ferrosilicon is added to the semi-steel when the vanadium is extracted, the carbon content of the semi-steel in the steelmaking converter is significantly reduced, and the temperature of the semi-steel in ...
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