TAPHOLE PLUGGING MATERIAL

PROBLEM TO BE SOLVED: To provide a taphole plugging material which is capable of forming a working body having excellent filling property, high density, high strength and good service life. SOLUTION: Water-containing amorphous silica having particle sizes of 10-40 nm is added to a refractory raw mat...

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Bibliographische Detailangaben
Hauptverfasser: MUROI NOBUAKI, TANAKA SEIJIRO, TORITANI YASUNOBU, TERAYAMA SATORU
Format: Patent
Sprache:eng
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide a taphole plugging material which is capable of forming a working body having excellent filling property, high density, high strength and good service life. SOLUTION: Water-containing amorphous silica having particle sizes of 10-40 nm is added to a refractory raw material subjected to particle size control in an amount of 0.1-1.0 wt.%, and an organic compound which leaves carbon when it is burnt is added to the mixture as a binder. Thereby, the required amount of a binder such as tar at the time of kneading is reduced, the taphole plugging material is made highly dense and compact, and the tapping time is extended. COPYRIGHT: (C)2004,JPO