This invention relates to a refractory ceramic batch and to a method for producing a refractory ceramic product.

This invention relates to a refractory ceramic batch and to a method for producing a refractory ceramic product.

The present invention relates to a dry refractory particulate composition comprising a zeolithic microstructure, to a green body and to a refractory lining formed therefrom, and to uses thereof.

The present invention relates to a dry refractory particulate composition comprising a zeolithic microstructure, to a green body and to a refractory lining formed therefrom, and to uses thereof.

Systems, methods, components, and materials are disclosed for stereolithographic fabrication of three-dimensional, dense objects. A resin including at least one component of a binder system and dispersed particles can be exposed to an activation light source. The activation light source can cure the at least one component of the binder system to form a green object, which can include the at least one component of the binder system and the particles. A dense object can be formed from the green object by removing the at least one component of the binder system in an extraction process and thermally processing particles to coalesce into the dense object.

A composition of the wear-resistant material of the present invention includes high-temperature resistant skeleton metal materials, ceramic fiber materials and ceramic particle materials with the mass ratio of (10-60):(1-30):(10-70). The high-temperature resistant skeleton metal materials are foam metal or high-temperature resistant metal fibers. The wear-resistant material is good in wear-resistance, high in tenacity, suitable for occasions with high requirements for wear-resistance and tenacity and capable of being locally attached to the surface of the light metal alloy matrix to improve the wear-resistance and tenacity of the light metal alloy matrix under high temperature conditions. The locally-reinforced light metal matrix composites of the present invention are the light metal alloy matrix locally-reinforced through the wear-resistant material. A manufacturing method of the locally-reinforced light metal matrix composites of the present invention is to metallurgically bond the wear-resistant layer with the light metal alloy matrix is through the squeeze casting technique.

A method for manufacturing a mold includes providing first information regarding a location of a shrinkage hole generated during hardening of a molten metal in a shell mold. Second information regarding a change in the location of the shrinkage hole in response to adjustment of a heat transfer rate of the shell mold is obtained. The heat transfer rate of the shell mold is adjusted to shift the shrinkage hole to a predetermined location.

A chromia-based brick, having chromia as a main component, includes: 70 to 95 mass % of Cr.sub.2O.sub.3; 0.5 to 15 mass % of ZrO.sub.2; 0.4 to 4.0 mass % of P.sub.2O.sub.5 derived from phosphate added as raw material; 10 or lower mass % of Al.sub.2O.sub.3; and a sintering aid component and unavoidable components.

A chromia-based brick, having chromia as a main component, includes: 70 to 95 mass % of Cr.sub.2O.sub.3; 0.5 to 15 mass % of ZrO.sub.2; 0.4 to 4.0 mass % of P.sub.2O.sub.5 derived from phosphate added as raw material; 10 or lower mass % of Al.sub.2O.sub.3; and a sintering aid component and unavoidable components.

A glass furnace including an additive-containing product including an additive selected from: phosphorus compounds other than glasses and vitroceramics, tungsten compounds other than glasses and vitroceramics, molybdenum compounds other than glasses and vitroceramics, iron in the form of metal, aluminum in the form of metal, silicon in the form of metal, and their mixtures, silicon carbide, boron carbide, silicon nitride, boron nitride, glasses including elemental phosphorus and/or iron and/or tungsten and/or molybdenum, vitroceramics including elemental phosphorus and/or iron and/or tungsten and/or molybdenum, and their mixtures, and having the following chemical analysis, exclusively of the additive, as a percentage by weight on the basis of the oxides: Cr.sub.2O.sub.32%, and Cr.sub.2O.sub.3+Al.sub.2O.sub.3+CaO+ZrO.sub.2+MgO+Fe.sub.2O.sub.3+SiO.sub.2+TiO.sub.290%, and Cr.sub.2O.sub.3+Al.sub.2O.sub.3+MgO60%, the content by weight of additive being in the range 0.01% to 6%.