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...

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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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creator	YABUSAKI YUKIHIRO OSHIMA TAKEHIKO MIYAKE KAZUMI FUKUDA YOICHI
description	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
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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 <=8μm particle diameter. Then, compounding is carried out so as to contain 25-50wt.% crude grain petalite-based raw material having about 0.07-0.3mm grain diameter and 30-50wt.% fine powder-compounded petalite-based raw material, and a proper amount of water and a binder are added thereto and these components are mixed by a kneader, etc., to prepare a compounded raw material. 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subjects	ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE LIME, MAGNESIA METALLURGY REFRACTORIES SLAG TREATMENT OF NATURAL STONE
title	PRODUCTION OF REFRACTORY HAVING LOW THERMAL EXPANSION PROPERTY
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