LADLE FOR MOLTEN STEEL AND ITS REPAIRING METHOD

PROBLEM TO BE SOLVED: To improve the service life of the whole of lining of a ladle by improving the durability of a molten metal contact part, and preventing generation of cracks and flotation of a liner as a whole liner. SOLUTION: In a molten steel ladle having an inner lining structure of a linea...

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Bibliographische Detailangaben
Hauptverfasser:	NAKAMURA HISASHI, TAKEUCHI KIMIHIKO, SAIKAI YOSHINOBU, AMANO MASAHIKO, ISOBE TOSHIHIRO
Format:	Patent
Sprache:	eng
Schlagworte:	ARTIFICIAL STONE BLASTING 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 DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS,IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KINDOF FURNACE FURNACES HEATING KILNS LIGHTING LIME, MAGNESIA MECHANICAL ENGINEERING METALLURGY OVENS PERFORMING OPERATIONS POWDER METALLURGY REFRACTORIES RETORTS SLAG TRANSPORTING TREATMENT OF NATURAL STONE WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To improve the service life of the whole of lining of a ladle by improving the durability of a molten metal contact part, and preventing generation of cracks and flotation of a liner as a whole liner. SOLUTION: In a molten steel ladle having an inner lining structure of a linear 3, a molten metal contact part 4 consists of, by weight, 100% the blended material having the composition consisting of 65-93% alumina, 2-20% magnesia, and 5-15% alumina cement, and monolithic shaped refractory which is executed by pouring alumina-magnesia containing outer percentage of 0.05-3% volatile silica, and other part consists of molithic refractory which is executed by pouring the alumina-spinel. In the method for repairing the molten steel ladle, the liner 3 is repaired by the monolithic refractory executed by pouring alumina- magnesia.