SLAG DEOXIDIZER

PURPOSE: A slag deoxidizer is provided to reduce Fe oxide contained in slag without reducing the oxygen concentration in molten steel when being inputted. CONSTITUTION: A slag deoxidizer(50) contains an Al-Mg metallic compound and limestone(CaCO3) coated on the surface of the Al-Mg metallic compound...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	WEE, CHANG HYUN, KIM, JONG DEOK
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	CHEMISTRY METALLURGY METALLURGY OF IRON PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	PURPOSE: A slag deoxidizer is provided to reduce Fe oxide contained in slag without reducing the oxygen concentration in molten steel when being inputted. CONSTITUTION: A slag deoxidizer(50) contains an Al-Mg metallic compound and limestone(CaCO3) coated on the surface of the Al-Mg metallic compound. The Al-Mg metallic compound contains 3-10 wt% of magnesium and 90-97 wt% of aluminum. The limestone is coated on the surface of the Al-Mg metallic compound with a thickness of 1-3 mm. The slag deoxidizer is inputted in a revolving furnace(10) just before tapping. A slag layer(15) can contain FeO, SiO2, CaO, P2O5, and MnO, and molten steel contains a large amount of metal substances containing Fe; oxygen; nitrogen; carbon.