SEALING METHOD OF UPPER NOZZLE FOR TUNDISH AND THE SEALING MATERIAL

PURPOSE: A Sealing method of the upper nozzle for tundish is provided to improve the quality of steel by sealing a gap generated between an upper nozzle and steel plate, and improve the productivity of steel by preventing the operation shut down. CONSTITUTION: A sealing material for sealing an upper...

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Bibliographische Detailangaben
1. Verfasser:	KIM, HONG GYEUN
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	ADHESIVES CHEMISTRY DYES MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS POLISHES
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Beschreibung
Zusammenfassung:	PURPOSE: A Sealing method of the upper nozzle for tundish is provided to improve the quality of steel by sealing a gap generated between an upper nozzle and steel plate, and improve the productivity of steel by preventing the operation shut down. CONSTITUTION: A sealing material for sealing an upper nozzle for tundish comprises 60~68 wt% alumina(Al2O3), 28~35 wt% silica(SiO2), 3~4 wt% ceramic fiber, and 1~3 wt% nanopowder silica. The ceramic fiber is one or more selected from the group consisting of alumina(Al2O3), silica(SiO2), and chromium oxide(Cr2O3). A sealing method of sealing a space between an upper nozzle(36) inserted in a web block(35) installed in tundisih(31) and the tundish comprises a step of filling up the space with the sealing material by using gun-type construction material.