FAR INFRARED-RAY RADIATOR

PURPOSE:To improve the resistance to thermal shock of a far infrared-ray radiator and to reduce production cost by blending clay and slag with lithium- series or cordierite-series ceramic, then molding and calcining the compound. CONSTITUTION:Clay and slag such as blast furnace slag or converter sla...

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Bibliographische Detailangaben
1. Verfasser:	KAMITAKI TOSHIHIKO
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:	PURPOSE:To improve the resistance to thermal shock of a far infrared-ray radiator and to reduce production cost by blending clay and slag with lithium- series or cordierite-series ceramic, then molding and calcining the compound. CONSTITUTION:Clay and slag such as blast furnace slag or converter slag are blended with powder consisting of lithium-series or cordierite-series ceramic utilized as a main component and thereafter this compound is molded and calcined by setting sintering temp. Lithium-series or cordierite-series ceramic is low in thermal exansion coefficient and the value is extremely low at about 3X10/ deg.C even when clay and slag are added. Moldability is improved because clay component is added. Thereby the obtained far infrared-ray radiator is small in thermal expansion coefficient and therefore its resistance to thermal shock is improved. Since the price of a raw material is inexpensive, production cost is reduced.