A METHOD FOR MELTING STEEL IN THE OPEN-HEARTH FURNACE

A METHOD FOR MELTING STEEL IN THE OPEN-HEARTH FURNACE

The invention relates to the ferrous metallurgy, in particular û to the method for melting steel in the open-hearth furnace. A method for melting steel in the open-hearth furnace involves loading the metal scrap, addition of the aggregate to the bathas solid heat carrier of the secondary aluminium p...

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Bibliographische Detailangaben
Hauptverfasser: BOIKO VOLODYMYR SEMENOVYCH, STEPANENKO OLEKSANDR MYKOLAIOVYCH, PRAKHNIN VIACHESALV LEONIDOVYCH, LESCHENKO YEHOR MYKOLAIOVYCH, TSYMBOI OLEKSANDR VASYLIOVYCH, MASTYTSKYI ANATOLII IVANOVYCH, KLIMANCHUK VLADYSLAV VLADYSLAVOVYCH
Format: Patent
Sprache:eng
Schlagworte:
ALLOYS
CHEMISTRY
FERROUS OR NON-FERROUS ALLOYS
METALLURGY
METALLURGY OF IRON
PRETREATMENT OF RAW MATERIALS
PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL
PRODUCTION AND REFINING OF METALS
TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:The invention relates to the ferrous metallurgy, in particular û to the method for melting steel in the open-hearth furnace. A method for melting steel in the open-hearth furnace involves loading the metal scrap, addition of the aggregate to the bathas solid heat carrier of the secondary aluminium production waste. At that as the secondary aluminium production waste it is used the alumoflux of slag screenings with a density of 0.5-1.2 of the furnace slag density. The alumoflux is incorporated atthe temperature of metal 0.9-0.98 of the metal temperature at the outlet of furnace, and consumption thereof is maintained by 0.003-0.007 of the bulk of metal scrap loaded to the furnace. The invention provides an efficient, stable course of melting,creation of exothermal effect, rarefying slag, deoxidizing the steel melt, increase in the furnace output and reduction of cast iron and ferroalloys consumption.