MOLTEN STEEL POURING NOZZLE

MOLTEN STEEL POURING NOZZLE A molten steel pouring nozzle having along the axis thereof an inner bore through which molten steel flows. At least a part of the molten steel pouring nozzle is formed with a refractory consisting essentially of at least 30 wt.% calcium oxide and at least one of magnesiu...

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Bibliographische Detailangaben
1. Verfasser:	TATE, MASAHISA
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ARTIFICIAL STONE CASTING CASTING OF METALS CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE LIME, MAGNESIA METALLURGY PERFORMING OPERATIONS POWDER METALLURGY REFRACTORIES SLAG TRANSPORTING TREATMENT OF NATURAL STONE
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Beschreibung
Zusammenfassung:	MOLTEN STEEL POURING NOZZLE A molten steel pouring nozzle having along the axis thereof an inner bore through which molten steel flows. At least a part of the molten steel pouring nozzle is formed with a refractory consisting essentially of at least 30 wt.% calcium oxide and at least one of magnesium oxide and aluminum oxide; and the refractory contains at least one of the magnesium oxide and the aluminum oxide so that the melting point of the refractory falls within the region of at least 2,200.degree.C in the CaO-MgO-Al2O3 ternary phase diagram.