Title:
CALCIUM SILICATE-BASED REFRACTORY COATED PLATE AND ITS PRODUCTION
Document Type and Number:
Japanese Patent JP2515195
Kind Code:
B
Abstract:
PURPOSE: To improve heat insulating performance by incorporating fine granular hydroxide of metal selected from Al and Mg into a matrix containing xonotlite crystal.
CONSTITUTION: Slurry A of calcium silicate hydrate crystal containing xonotlite crystal is obtained by mixing silica stone with quicklime so that the molar ratio of Ca to Si is regulated to 0.85-1.2 and reacting both at 12-20kg/cm2 steam pressure for 3-8 hours. Then, a mixture D is obtained by adding fine granular aluminum hydroxide and/or magnesium hydroxide B at 10-50wt.% per total solid and inorganic fiber C for reinforcement (e.g. alkali resistant glass fiber) at about 8wt.% or below to the component A and mixing them to obtain a mixture D. Then, a calcium silicate-based refractory coated plate having 0.25-0.55g/cm3 bulk density is produced by forming the mixture D into a plate and drying this plate.
Inventors:
Hioki, Takao
Masuyama, Hisao
Takimoto, Kozo
Onishi, Nobuo
Masuyama, Hisao
Takimoto, Kozo
Onishi, Nobuo
Application Number:
JP1991000284086
Publication Date:
April 30, 1996
Filing Date:
October 04, 1991
Export Citation:
Assignee:
NICHIAS CORP
International Classes:
B28B3/00; C04B14/38; C04B22/06; C04B28/18; C04B32/00; (IPC1-7): C04B32/00; C04B22/06; C04B28/18
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