5 results about "Kyanite" patented technology

The application discloses a kind of jade color seepage luxury stone effect ceramic rock plate and preparation method thereof, the ceramic rock plate includes body, transparent face glaze layer, jade texture pattern layer, composite dry particle layer, first protective glaze layer, transparent dry particle layer and second protective glaze layer in turn from bottom to top;The raw material components of preparation composite dry particle layer include seepage color dry particle and transmittance dry particle, and the raw material components of seepage color dry particle include by weight 65-69 parts of zircon, 5-7 parts of lithium mica, 10-15 parts of opal, 3-5 parts of kyanite and 1-5 parts of calcium-aluminium garnet;The raw material components of transmittance dry particle include by weight 20-25 parts of sodium feldspar, 25-30 parts of quartz, 14-16 parts of calcite, 8-12 parts of wollastonite and 13.5-15.5 parts of zinc oxide.The ceramic rock plate can truly restore the randomness, level and multicolor interweaving effect of jade color seepage, improve the warm and moist texture and natural luster of product surface, realize the luxury stone effect of jade color seepage.

This invention belongs to the field of refractory material preparation technology, specifically relating to a refractory brick and its preparation method. The refractory brick of this invention uses calcined bauxite and fused white corundum as the main raw materials, providing a high-strength refractory skeleton to ensure the basic compressive strength of the refractory brick. The addition of kyanite and andalusite, through a kyanite-andalusite composite, achieves gradient control of the expansion rate; kyanite rapidly responds to mid-temperature shrinkage, while andalusite sustains high-temperature expansion, synergistically achieving volume stability. Secondary alumina ash, hematite tailings, and serpentine tailings are also added to the raw materials to promote the formation of magnesium iron spinel and mullite phases; lanthanum oxide, yttrium aluminum garnet, titanium silicon carbide, and yttrium titanate are added to further improve the strength and crack resistance of the refractory brick; calcium hexaaluminate micron powder, p-Al2O3 micron powder, and deionized water are used as composite binders. Thus, the synergistic effect between the raw materials ensures that the prepared refractory brick has excellent strength and crack resistance.

The invention belongs to the field of advanced structure ceramic preparation, and particularly relates to an anti-deformation smoothing plate and a manufacturing method thereof. The preparation method of the anti-deformation smoothing plate comprises the following steps: (1) performing high-pressure forming on raw materials to obtain a formed blank; (2) drying the molded blank until the moisture content is less than 0.5% to obtain a dry blank; (3) sintering the dry green body at the temperature of 1300-1500 DEG C to obtain a sintered green body; and (4) the sintered blank is ground and subjected to finish machining treatment, it is ensured that the flatness of a product is smaller than 0.02 mm, and the smoothening plate is obtained. The preparation method comprises the following steps: taking white corundum, fused mullite, alumina fine powder and kaolin as raw materials, introducing kyanite micro powder and talc micro powder, mixing the raw materials, performing high-pressure molding, and performing high-temperature sintering to form a sintered product which takes corundum and fused mullite particles as aggregates and has a low-expansion modified mullite matrix. The product has the advantages of favorable thermal shock resistance, excellent deformation resistance and longer service life.

The present application belongs to the technical field of unshaped refractory material, and discloses a kind of crack self-repairing acid-resistant spray coating and its using method.The crack self-repairing acid-resistant spray coating of the present application includes the following mass percentage of raw materials: 35~50% of coke-vitreous stone aggregate, 20~30% of high alumina bauxite powder, 6~10% of active alumina micro powder, 1~4% of quartz powder, 2~5% of kyanite powder, 2~4% of crack self-repairing microcapsule, 0.08~0.2% of plasticizer, 0.1~0.4% of curing agent, 0.1~0.5% of surface modifier, and 9~13% of ammonium type silica sol.The crack self-repairing acid-resistant spray coating of the present application has the characteristics of easy construction, high strength, good high-temperature volume stability, self-repairing after crack, excellent acid corrosion resistance, etc., and is especially suitable for hot blast furnace dome position.

The invention belongs to the technical field of refractory materials and relates to an aging low-thermal-conductivity refractory material as well as a preparation method and a use method thereof. The preparation method of the aged low-thermal-conductivity refractory material comprises the following steps: respectively crushing the special-grade alumina clinker and the low-thermal-conductivity mullite-silicon aggregate into four particle sizes of 5-8 mm, 3-5 mm, 1-3 mm and 0-1 mm for later use; the preparation method comprises the following steps: mixing special-grade alumina clinker fine powder with the particle size of 0-1mm, low-thermal-conductivity mullite-silicon aggregate fine powder with the particle size of 0-1mm, sintered alumina fine powder, calcium aluminate cement fine powder, alpha-Al2O3 fine powder and kyanite fine powder according to a ratio to obtain matrix fine powder; the preparation method comprises the following steps: mixing special-grade alumina clinker particles with the particle size of 5-8 mm, special-grade alumina clinker particles with the particle size of 3-5 mm, special-grade alumina clinker particles with the particle size of 1-3 mm, low-thermal-conductivity mullite-silicon aggregate particles with the particle size of 5-8 mm, low-thermal-conductivity mullite-silicon aggregate particles with the particle size of 3-5 mm and low-thermal-conductivity mullite-silicon aggregate particles with the particle size of 1-3 mm according to the proportion, and adding silica powder while stirring; and after mixing, adding the matrix fine powder, uniformly mixing, finally adding the explosion-proof fiber, and stirring to obtain the aging low-thermal-conductivity refractory material.