DOUBLE-LAYER COMPOSITE FILLER SAND FOR WELL BLOCK OF STEEL LADLE

A double-layer composite filler sand for a well block of a steel ladle is disclosed. The double-layer composite filler sand is filled in the well block provided at a bottom of the steel ladle. The double-layer composite filler sand includes a sintering-sand configured to be an upper layer of the dou...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	KUO, CHIA-HUNG, LAI, CHIEN-TING, TSAI, LI-WEN, CHEN, KUN-MING, PAN, CHIEN-NAN, HSIAO, CHIA-KE
Format:	Patent
Sprache:	chi ; eng
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 FERROUS OR NON-FERROUS ALLOYS LIME, MAGNESIA METALLURGY PERFORMING OPERATIONS POWDER METALLURGY PRETREATMENT OF RAW MATERIALS PRODUCTION AND REFINING OF METALS REFRACTORIES SLAG TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS TREATMENT OF NATURAL STONE
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Beschreibung
Zusammenfassung:	A double-layer composite filler sand for a well block of a steel ladle is disclosed. The double-layer composite filler sand is filled in the well block provided at a bottom of the steel ladle. The double-layer composite filler sand includes a sintering-sand configured to be an upper layer of the double-layer composite filler sand for contacting with molten steel, so as to form a sintered-layer as a barrier; and a supporting-sand disposed under the sintering-sand and configured to be a lower layer of the double-layer composite filler sand to support the sintering-sand. The sintering-sand includes chromite sand. A thickness of the sintering-sand ranges from 1/2 to 1/3 of a depth of the well block, and a thickness of the supporting-sand ranges from 1/2 to 2/3 of the depth of the well block.