Abstract: A silicon carbide fiber dispersion-reinforced composite refractory molding includes an aggregate part and a bonding part which are obtained by compounding an plastic refractory composition containing at least SiC, with SiC fiber chops, in an amount of 0.1 to 3% by weight based on the plastic refractory composition, wherein fiber bundles each including a plurality of SiC inorganic fibers containing 50% or more SiC in their main component and having a length of 10 mm to 100 mm and a fiber diameter of 5 ?m to 25 ?m were bundled via an organic binder, kneading the mixture with water and then drying and solidifying it, wherein monofilaments including SiC inorganic fibers containing 50% or more SiC, having a fiber diameter of 5 ?m to 25 ?m, a fiber length of 50 ?m to 2,000 ?m and an aspect ratio of 5 to 200 are dispersed in the bonding part.

Abstract: A silicon carbide fiber dispersion-reinforced composite refractory molding includes an aggregate part and a bonding part which are obtained by compounding an plastic refractory composition containing at least SiC, with SiC fiber chops, in an amount of 0.1 to 3% by weight based on the plastic refractory composition, wherein fiber bundles each including a plurality of SiC inorganic fibers containing 50% or more SiC in their main component and having a length of 10 mm to 100 mm and a fiber diameter of 5 ?m to 25 ?m were bundled via an organic binder, kneading the resulting mixture with water and then drying and solidifying it, wherein the aggregate part contains at least SiC, the bonding part is constructed by hydration reaction, and monofilaments comprising SiC inorganic fibers containing 50% or more SiC in their main component, having a fiber diameter of 5 ?m to 25 ?m, a fiber length of 50 ?m to 2,000 ?m and an aspect ratio of 5 to 200 are dispersed in the bonding part.

Abstract: A hot plate is used with a molten metal storage container in which a molten metal or bath is temporarily stored prior to any subsequent casting process, and keeps the molten metal temporarily stored in the storage container at a specific constant temperature by heating the molten metal as required. The temperature of the stored molten metal is controlled so that it cannot fall below the particular temperature.The hot plate includes a heating unit formed in a flat shape from any suitable heat resistant, electrically insulating material and having an electric heating wire or coil therein: and A box unit made of any suitable ceramic material has the flat heating unit freely inserted and removably mounted therein.As a variation of the hot plate, the box unit may include a ceramic coating layer formed on the outer peripheral surface thereof, the ceramic coating layer being reinforced with any suitable fibrous ceramic textile.