JP2787164B

PURPOSE:To obtain the subject carbonaceous heat insulating material having high oxidation resistance and hardly any contamination with coal dust and inorganic impurities by highly purifying the amount of the inorganic impurities in a carbonaceous heat insulating material to a specific content or bel...

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Hauptverfasser: KONDO TERUHISA, KONDO NAOTAKA
Format: Patent
Sprache:eng
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Zusammenfassung:PURPOSE:To obtain the subject carbonaceous heat insulating material having high oxidation resistance and hardly any contamination with coal dust and inorganic impurities by highly purifying the amount of the inorganic impurities in a carbonaceous heat insulating material to a specific content or below and depositing silicon carbide on the surface thereof. CONSTITUTION:For example, a carbonaceous heat insulating material composed of a carbonaceous felt, expanded graphite compact, etc., is highly purified so as to provide