A METHOD FOR PRODUCING HIGH-TEST CAST IRON FOR CASTS OF BLAST-FURNACES COOLERS

The invention relates to the non ferrous metallurgy and concerns preparation of the high-strength cast-iron with globular graphite. A method provides the introduction of grafitizing modifier into the cast-iron before discharging the melt from the furnace. The mass of grafitizing modifier is of 0.7-0...

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Bibliographische Detailangaben
Hauptverfasser:	LIESCHENKO ANATOLII MYKOLAIOVYCH, RUDNYTSKYI OLEKSANDR LVOVYCH, BRYNZA OLEKSANDR FEDOROVYCH, KHARCHENKO VOLODYMYR VIKTOROVYCH, PRYDOROHIN VOLODYMYR LUKYCH
Format:	Patent
Sprache:	eng
Schlagworte:	ALLOYS CHEMISTRY FERROUS OR NON-FERROUS ALLOYS METALLURGY METALLURGY OF IRON PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL 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 non ferrous metallurgy and concerns preparation of the high-strength cast-iron with globular graphite. A method provides the introduction of grafitizing modifier into the cast-iron before discharging the melt from the furnace. The mass of grafitizing modifier is of 0.7-0.8 of the mass of magnesium-containing modifier which is placed on the bottom of the ladle. The percent elongation of the obtained cast-iron at the breaking test is of no less than 10 %, the strength is no less than 450 MPa.