PRODUCTION OF REFRACTORY HAVING LOW THERMAL EXPANSION PROPERTY

PRODUCTION OF REFRACTORY HAVING LOW THERMAL EXPANSION PROPERTY

PROBLEM TO BE SOLVED: To produce a refractory having high mechanical strength by compounding crude grain petalite-based raw material having a specific particle diameter with fine powder petalite-based raw material in a prescribed weight ratio. SOLUTION: A prescribed amount of clay, a water glass-bas...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: YABUSAKI YUKIHIRO, OSHIMA TAKEHIKO, MIYAKE KAZUMI, FUKUDA YOICHI
Format: Patent
Sprache:eng
Schlagworte:
ARTIFICIAL STONE
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
CONCRETE
LIME, MAGNESIA
METALLURGY
REFRACTORIES
SLAG
TREATMENT OF NATURAL STONE
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Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To produce a refractory having high mechanical strength by compounding crude grain petalite-based raw material having a specific particle diameter with fine powder petalite-based raw material in a prescribed weight ratio. SOLUTION: A prescribed amount of clay, a water glass-based dispersing agent and water are added to a granular petalite-based raw material and the mixture is subjected to wet powering with a ball mill, etc., and sieved to prepare a fine powder-compounded petalite-based raw material containing >= about 50wt.% fine powder having