Smelting method of low-carbon high-silicon low-aluminum steel
The invention relates to the technical field of ferrous metallurgy, in particular to a smelting method of low-carbon high-silicon low-aluminum steel, which comprises the following steps: a smelting process flow adopts molten iron pretreatment, converter treatment, LF furnace treatment and continuous...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention relates to the technical field of ferrous metallurgy, in particular to a smelting method of low-carbon high-silicon low-aluminum steel, which comprises the following steps: a smelting process flow adopts molten iron pretreatment, converter treatment, LF furnace treatment and continuous casting; an aluminum-free steel ladle is prepared 1-2 casting organizations in advance, and it is ensured that the temperature drop of the steel ladle is stable; pretreating blast furnace molten iron, and slagging off after the components of the molten iron are qualified; the converter end point components and the tapping temperature are controlled, the slag amount is controlled during tapping, and top slag is added; adding a slagging material after the LF furnace arrives at the station, and deoxidizing by adopting ferrosilicon powder in the refining process; the smelting method of the low-carbon high-silicon low-aluminum steel has the beneficial effects that the process of molten iron pretreatment, converter, LF |
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