35 results about "Ball clay" patented technology

The invention provides titanium-containing anhydrous stemming for a blast furnace and a preparation method of the titanium-containing anhydrous stemming, and belongs to the technical field of refractory materials for the blast furnace. The titanium-containing anhydrous stemming for the blast furnace comprises the following raw materials: 40-60 parts of titanium corundum, 5-15 parts of silicon carbide, 10-20 parts of ferro-silicon nitride fine powder, 5-15 parts of titanium dioxide fine powder, 5-15 parts of vanadium-titanium slag fine powder, 5-10 parts of coke fine powder, 1-5 parts of monatomic silicon fine powder, 1-5 parts of ball clay micro powder, 1-5 parts of aluminum nitrate micro powder and 1-2 parts of magnesium alon micro powder. Gas-phase substances of Si (g), Al (g) and Mg (g) can be formed in the stemming at high temperature by the monatomic silicon fine powder and the MgAlON micro powder in the raw materials and react with CO and N2 in the environment to generate ceramic whiskers such as SiC, Si3N4, AlN and MgAl2O4, and the generated ceramic whiskers are distributed in a staggered manner and are filled in pores of the stemming, so that the high-temperature strength and the volume stability of the stemming are remarkably improved.

The invention relates to the technical field of ceramic materials, in particular to a ceramic material and a preparation method and application thereof. The invention provides a ceramic material, which is prepared from the following raw materials in percentage by mass: 5 to 30 percent of ball clay, 5 to 25 percent of purple grit mud, 10 to 35 percent of mullite, 15 to 40 percent of cordierite and 3 to 10 percent of pore forming agent. The ceramic material has the characteristics of good heat storage property, impact resistance and light weight. The pizza stone plate can be comparable with a high-grade pizza stone plate made of natural volcanic materials.

The application discloses a kind of high wear-resistant hot bending forming rock plate, including following weight parts raw materials: kaolin 30-35 parts, fine ball clay 20-25 parts, wollastonite 10-15 parts, super white sand 10-15 parts, feldspar 8-14 parts, pyroxene 7-12 parts, talc 6-10 parts, bentonite 5-8 parts, tremolite 4-7 parts, sodium tripolyphosphate 3-5 parts, modified additive 4-7 parts.The high wear-resistant hot bending forming rock plate of the application uses kaolin, fine ball and other raw materials with modified additive, through the modification of mullite and cordierite in modified additive by specific modified liquid stirring, the silicon carbide whisker liquid in modified liquid cooperates with hydroxyapatite agent into the system, through the coordination and synergistic effect between raw materials, so that the performance of the product is further improved, the toughness performance, fracture performance and wear resistance of the product are improved in coordination.

This invention discloses a wear-resistant electrical porcelain glaze and its preparation method, belonging to the technical field of electrical porcelain insulators. The method includes the following steps: S1, adding graphene oxide and a surfactant to deionized water, stirring, ultrasonically dispersing for 10-12 hours, centrifuging, collecting the precipitate, and drying to obtain modified graphene oxide; the surfactant modifies the graphene oxide to improve its water dispersibility, allowing it to be uniformly dispersed in water without easily agglomerating or precipitating; S2, thoroughly mixing dried potassium feldspar, sodium feldspar, kaolin, quartz powder, calcined talc, ball clay, barium titanate, modified graphene oxide, and a dispersant by weight to obtain a mixture; S3, adding the mixture to a ball mill for ball milling, iron removal, and aging to obtain the wear-resistant electrical porcelain glaze. The wear-resistant electrical porcelain glaze provided by this invention has excellent wear resistance, and the preparation method is simple and easy to operate, showing good application and promotion prospects.

The present application relates to dunhuang murals stone green ceramic rock plate and manufacturing method, including: (1) pressing blank; (2) low zirconium series super white cosmetic clay: cosmetic clay is composed according to weight part: washed highland clay 6, black mud 3, glass frit 18, diopside 2, quartz powder 2, barium-based frit 4, ultrafine quartz powder 12, zirconium white frit 15, calcined alumina powder 6, zirconium silicate 3, potassium feldspar 10, nepheline powder 7, ball clay 10, calcined talc 2, sodium tripolyphosphate 0.6, sodium carboxymethyl cellulose 0.3; (3) inkjet printing: color ink is combined by cyan, blue, brown, wrapped yellow, red and black; (4) promote green glaze: promote green glaze formula is composed according to weight part: high-zinc low-temperature frit 32, fused quartz 28, quartz powder 17, white carbon black 14, highland clay 9; (5) apply protective glaze: according to the selection of product surface gloss and texture of green series product development, it can be dry particle glaze, matt or bright protective glaze; (6) high temperature sintering.

The application discloses a production method of porcelain mud made of waste porcelain powder, and belongs to the technical field of ceramic materials. The method comprises the following steps: step 1, adding waste porcelain powder, sodium feldspar, potassium feldspar, ball clay, high-white primary ore, modified kaolin and calcined talc into a ball mill according to weight parts, adding water, ball-milling and mixing for 24-36 hours to obtain mud; and step 2, screening the mud obtained in step 1 to remove iron, pressure filtering, and refining the mud to obtain porcelain mud. The modified kaolin in the application has high dispersing performance and is not prone to agglomeration, and the mixing effect is excellent. The porcelain mud made of waste porcelain powder in the application has high plasticity and is not prone to cracking, dry shrinkage and other phenomena in the use process; the application not only effectively utilizes the waste porcelain powder generated by the ceramic industry, but also widens the production method of porcelain mud, and has great significance for the ceramic industry.

The present invention relates to the technical field of ceramic tiles, and particularly to a penetrating marble glaze, a marble tile using the same, and a preparation method thereof. Calculated by weight parts, it includes the following raw materials which are ball-milled after being mixed evenly: 25-35 parts of nepheline, 12-16 parts of wollastonite, 6-10 parts of modified barium titanate frit, 6-13 parts of ball clay, 8-12 parts of zinc oxide, 3-6 parts of barium sulfate, 15-20 parts of quartz, 8-13 parts of dolomite, 1-2 parts of talc, 2-8 parts of barium carbonate, 10-20 parts of penetrant, 5-10 parts of binder, and 10-15 parts of deionized water. By sequentially applying a porous rough glaze and a penetrating marble glaze on the base glaze layer, wherein barium sulfate and modified barium carbonate frit are added to the penetrating marble glaze layer, which helps wollastonite and zinc oxide to combine into barium zinc titanate crystals, making the glaze layer have the characteristics of being porous, rough and easy to penetrate. At the same time, the performance of the penetrating marble glaze slurry is easier to control. The marble tile prepared after firing has good anti-slip property, erosion resistance and texture sense.

The present application relates to the technical field of the production of sanitary ceramics, and in particular relates to a green body for eliminating sintering blisters from a high-pressure formed ceramic, and a preparation method therefor. On the basis of the mass percentage of raw materials, the green body comprises: 20%-25% of kaolin, 1%-3% of quartz, 5%-8% of ball clay, 17%-27% of high-alumina porcelain stone, 3%-8% of waste porcelain, 3%-10% of low-glaze recycled mud, 0%-5% of raw porcelain clay, 10%-15% of water-washed porcelain clay, 10%-21% of spodumene tailings and / or microcline, and 2%-5% of wollastonite. The green body is obtained by means of high-pressure slip casting, drying and sintering. In the present application, the formation and blocking mechanisms of sintering blisters are precisely determined, thereby effectively controlling the defect of sintering blisters in high-pressure formed sanitary ceramic products. In addition, a large number of industrial solid waste raw materials such as waste porcelain, waste mud and spodumene tailings are used in the formula of the green body of the present application, which helps to reduce the accumulation of industrial solid waste, reduce environmental pressure and promote the sustainable development of the sanitary ceramics industry.

The invention discloses a method for preparing an organic-inorganic composite real stone paint by using ball clay tailings as a main material, and the formula is as follows: 20-30 parts of ball clay washing tailings coarse sand (20-40 meshes), 23-27 parts of ball clay washing tailings medium sand (40-80 meshes), 15-18 parts of ball clay washing tailings fine sand (80-120 meshes), 10-13 parts of deionized water and 0.2-0.3 part of hydroxypropyl methyl cellulose. The coating is prepared from the following components in parts by weight: 0.15 to 0.23 part of kathon fungicide, 8 to 10 parts of silicone acrylic emulsion, 3 to 4 parts of potassium silicate, 5 to 8 parts of silica sol, 0.3 to 0.5 part of propylene glycol, 0.2 to 0.4 part of defoaming agent and 0.3 to 0.4 part of dispersing agent. After the ball clay tailings are washed and screened, the main component is silicon dioxide, the ball clay tailings have good chemical inertness, soluble salt and suspended impurities can be removed through washing, the risk of emulsion flocculation caused by ions is avoided, and meanwhile, a dense stacking structure is formed through multi-stage particle matching; potassium silicate and silica sol can react with COs or are subjected to dehydration condensation to form silicon-oxygen bonds, extremely high hardness is provided, the potassium silicate and the silica sol are compounded with the silicone acrylic emulsion to form an organic-inorganic composite system, and flexibility and hardness are both considered.

The invention discloses a high elastic modulus alumina ceramic, and relates to the technical field of ceramics, the high elastic modulus alumina ceramic comprises a body material: 75 parts by mass of kaolin, 22.5 parts by mass of bentonite, 13 parts by mass of heavy magnesium carbonate, 2.5 parts by mass of calcium carbonate, and 120 parts by mass of alumina; glaze: 100 parts by mass of silicon dioxide, 22.5 parts by mass of potassium fluoroaluminate, 5 parts by mass of cerium dioxide, 6 parts by mass of yttrium oxide, 5 parts by mass of aluminum borate whiskers, 8 parts by mass of nano-zinc oxide, 3 parts by mass of cerium-graphene nanoparticles and 0.5 part by mass of large-ball mud superfine powder. According to the high-elasticity-modulus aluminum oxide ceramic, rare earth elements including cerium dioxide and yttrium oxide are beneficial to improving the toughness and high-temperature performance of the ceramic, and the strength and wear resistance of the ceramic can be enhanced by adding aluminum borate whiskers and nano-zinc oxide; due to the existence of the cerium-graphene nanoparticles, the electrical conductivity and thermal conductivity of the ceramic can be improved; the large-ball mud superfine powder is beneficial for improving the microstructure of the ceramic, so that the performance of the whole aluminum oxide ceramic is optimized.

The present invention relates to a wear-resistant granite ceramic tile with a three-dimensional decorative effect and a preparation method thereof. The polycrystalline wear-resistant green body formula is composed of the following components by weight percentage: ball clay 8% - 15%, high-white kaolin 8% - 15%, mixed mud 10% - 15%, calcined talc 0% - 5%, bentonite 3 - 6%, potassium and sodium feldspar powder 15 - 25%, finely ground lithium tailings 8% - 15%, calcined bauxite 4% - 8%, fine corundum powder 15% - 25%, ultrafine zirconium silicate 0% - 5%, high-purity anatase titanium dioxide powder 0% - 5%, green body strengthening agent 0 - 1%, deflocculant 1 - 3%; the fine corundum powder is α-Al2O3 with an Al2O3 content of 99.9 - 100%, an Fe2O3 content of 0 - 0.1%, and a particle size D50 < 3 μm.

The invention relates to the technical field of building materials, and mainly relates to a ceramic tile with a same-color blank surface and a preparation method thereof. The ceramic tile with the same-color blank surface comprises a blank body and a glaze layer, the glaze layer covers the surface of the blank body, and the glaze layer is prepared from transparent glaze; the blank body comprises the following components in parts by weight: 30-40 parts of potassium feldspar, 10-20 parts of dolomite, 1-5 parts of zinc oxide, 5-10 parts of strontium carbonate, 3-8 parts of corundum, 3-8 parts of washed soil, 5-10 parts of wollastonite, 1-5 parts of barium carbonate and 10-15 parts of frit; the transparent glaze comprises the following components in parts by weight: 5-10 parts of washed ball clay, 10-15 parts of medium white clay, 3-8 parts of talcum powder, 15-25 parts of potassium sand, 3-8 parts of white clay, 25-35 parts of potassium-sodium sand, 5-10 parts of albite powder, 5-10 parts of kaolin and 390-420 parts of water glass. The ceramic tile provided by the invention has a good blank surface same-color effect, and also has high adhesive force and strong wear resistance.

The application discloses a soluble ceramic core for growing mullite whiskers in situ from low-grade ball clay, and raw materials of the soluble ceramic core include low-grade ball clay, sodium chloride and water.The method is as follows: the low-grade ball clay is dried, sieved, mixed with sodium chloride, sprayed and granulated with water, pressed into a mold, moved into a muffle furnace, heated to 300 DEG C at a rate of 5 DEG C / min, kept for 0.5 h, sintered from 300 DEG C to 725-775 DEG C at a rate of 3 DEG C / min for 1.0 h, then cooled to 100 DEG C and taken out, so as to obtain a soluble ceramic core for growing mullite whiskers in situ.The application has the advantages that the core is made by a pressing and sintering process, the process is simple, mullite whiskers are grown in situ in the ceramic core during the sintering process, the soluble ceramic core is reinforced and toughened, sodium chloride is used as a binder, there is no pollution, and the comprehensive performance is excellent.The bending strength of the soluble ceramic core is 7-15 MPa, the tensile strength is 2-6 MPa, the soluble ceramic core can be scattered at a water temperature of 90 DEG C, and the application provides a new technology for ceramic casting development.

A high-hardness and high-toughness bent rock slab according to the present invention comprises the following raw materials in parts by weight: 15-20 parts of kaolin, 15-20 parts of selected ball clay, 10-15 parts of ultra-white sand, 10-15 parts of potassium feldspar, 6-10 parts of diopside modifier, 5-8 parts of calcined talc, 4-7 parts of bentonite-tempered tremolite agent, 0.3-0.4 parts of sodium tripolyphosphate peptizing agent, and 2-5 parts of modified auxiliary agent. The rock slab of the present invention uses raw materials such as kaolin, selected ball clay and ultra-white sand in combination with a diopside modifier and a bentonite-tempered tremolite agent. By coordinating and blending the two, the synergistic effect is achieved, resulting in excellent coordination effects of the toughness, bending performance and hardness performance of the product, as well as remarkable effects of acid corrosion resistance and cold stability of the product.

The application discloses a kind of ceramic blank based on lithium tailings, according to mass fraction calculation, the raw materials of the ceramic blank include ball clay 25~35 parts, lithium tailings 50~70 parts, wollastonite 1~5 parts and zircon frit 5~10 parts;Wherein, the chemical composition of the lithium tailings includes potassium oxide and sodium oxide;The crystal structure of the wollastonite is acicular crystal structure;The raw material of the zircon frit includes alumina, quartz, composite zircon, potassium feldspar and sodium feldspar.A kind of ceramic blank based on lithium tailings is proposed in the present application, under the premise of a large amount of lithium tailings, ensuring to reduce the calcination temperature and calcination time of ceramic blank, to overcome the deficiencies in the prior art, improve the strength and whiteness.

The application discloses a high-whiteness mercerized texture ecological ceramic composition and application thereof, and the ceramic composition comprises teacrystal, high-whiteness tubular hard clay, super-white washed ball clay, super-white alpha-Al2O3, super-white quartz sand, high-whiteness fused block and an ecological mineralizer. The teacrystal contains multiple rare earths and active elements, and contains a large amount of nutritional elements, and the ecological mineralizer is used in the high-whiteness mercerized texture ecological ceramic composition, so that the crystal generation among materials is promoted, the ceramic composition is made to be opaque, and the covering ability of the ceramic body is enhanced. The ceramic product prepared by the method has a surface whiteness of 65 degrees or more, a mercerized texture of 2-3 luster units, a wear resistance of 5 levels or more, and has functions such as antibiosis, and is an ideal environment-friendly decorative product.

The present invention discloses a crucible with high thermal deformation performance and a preparation process thereof, comprising a crucible main body, wherein the outer wall of the crucible main body is integrally formed with a first protrusion and a second protrusion, the upper surface of the first protrusion is flush with the upper surface of the crucible main body, the second protrusion is located below the first protrusion, a plurality of arc-shaped protrusions are integrally formed on the side opposite to the first protrusion and the second protrusion, and the upper surface of the crucible main body is provided with a notch; the crucible main body of the present invention is mainly made of aluminum oxide, silicon dioxide, iron oxide, ball clay, coke and blue spinel powder as raw materials through a mold to make a pot body; by using aluminum oxide, silicon dioxide and iron oxide as aggregate clinker, the high-temperature resistance of the crucible main body can be effectively improved, and the density and mechanical strength of the crucible main body can be significantly enhanced, which has a significant effect, and to a certain extent reduces the probability of deformation of the crucible main body when heated at high temperature for a long time.

The invention belongs to the technical field of wine production, and particularly relates to a stoneware pot for ageing wine, a preparation method of the stoneware pot and a wine aroma enhancement method. The preparation raw materials of the stoneware contain kaolin, ball clay, clay, quartz, feldspar and river sand, and also contain plant ash, and 1.48 [mu] g / L of 2-acetyl-1H-pyrrole can be detected in wine aged by the stoneware prepared from the raw materials. According to the aroma enhancement method of the grape wine, the grape wine can contain 2-acetyl-1H-pyrrole, and the aroma of the grape wine can be richer and richer.

The present invention provides a high-temperature ceramic hollow roller and a method for making it. The hollow roller comprises a rod body formed by a hollow portion and a rod wall. The rod wall is made from a base material consisting of 25-30% α-alumina powder, 10-15% zirconium silicate powder, 10-15% silicon nitride powder, 10-15% sericite powder, 10-15% feldspar powder, 10-15% ball clay powder, 15-20% soft kaolin powder, and 0.16-0.21% methyl cellulose powder, by mass percentage. A reinforcing structure made of polycrystalline mullite fiber is also provided within the rod wall, integrated with the rod wall. This invention improves the structural strength and fracture resistance of the high-temperature ceramic hollow roller without increasing its weight.

The present invention relates to the field of ceramics and preparation methods thereof, and in particular to a ceramic with a three-dimensional concave-convex texture and a preparation method thereof, wherein the glaze is inlaid with stone, the raw materials of the green body comprising, by weight, the following components: 20-30 parts of porcelain clay, 10-12 parts of quartz, 30-40 parts of feldspar, 20-30 parts of kaolin, 6-8 parts of spodumene, 6-8 parts of dolomite, and 4-6 parts of carboxymethyl cellulose glue, and the raw materials of the glaze comprising, by weight, the following components: 26-28 parts of feldspar, 20-24 parts of calcium carbonate, 18-22 parts of ball clay, 8-10 parts of kaolin, 20-22 parts of quartz stone, 2-4 parts of bone ash, 2-4 parts of ochre yellow colorant, and 2-4 parts of red iron oxide. The fired ceramic glaze presents an amber green color with convex real stone texture, concave white green body color lines, and black coloring texture attached to the glaze, thereby having rich and three-dimensional color texture.

The present invention provides a breathable skateboard brick outer layer material and a preparation method thereof, and relates to the technical field of refractory materials. The material comprises the following raw materials by mass fraction: 15 to 33 parts of quartz stone particles, 5 to 15 parts of pyrope stone particles, 20 to 30 parts of waste silica brick particles, 15 to 25 parts of quartz stone fine powder, 8 to 18 parts of waste silica brick fine powder, 1 to 3 parts of silicon micropowder, 0.5 to 3.0 parts of ball clay fine powder, and 3 to 6 parts of thermosetting phenolic resin. The present invention uses pyrope stone particles with low cost and large reserves and waste silica bricks as refractory materials instead of expensive corundum graphite, etc., which reduces the production cost, and the silicon micropowder and ball clay fine powder are sintered when used under high temperature conditions, so that the strength of the skateboard outer layer material is increased, and the strength of the skateboard can be prevented from deteriorating due to resin oxidation.

The invention belongs to the technical field of sanitary ceramics, and relates to a high-strength toughened antibacterial ceramic material and a preparation method and application thereof.The high-strength toughened antibacterial ceramic material comprises a ceramic body and glaze, and the ceramic body comprises ball clay, kaolin, porcelain clay, quartz, calcined kaolin, 5 parts of wollastonite and feldspar; the glaze comprises talc, calcite, feldspar, kaolin, quartz, zircon powder, wollastonite, zinc oxide, a silane coupling agent, an acrylate copolymer and a carrier antibacterial agent; phenolated lignin with high reduction activity is prepared by adopting a tannic acid and ferulic acid combined enzyme method to reduce silver nitrate, so that nano-silver has excellent stability and dispersity on lignin, the antibacterial property can be fully exerted, and the antibacterial durability can be enhanced; by adding a specific amount of acrylate copolymer and silane coupling agent into the glaze material, the glaze surface structure is optimized, the binding force of the glaze surface and a ceramic body is improved, and the crack resistance of the ceramic glaze surface is improved.

The present invention relates to process for forming high-quality porcelain tiles from a body formulated by mixtures of kaolin, steel slag (waste with composition: Total Fe=33.34 wt.%, CaO=27.22 wt.%, Si0.=20.80 wt.%, ALO:=9.19 wt.%, MnO=3.98 wt.%, MgO=2.06 wt.%, Cr-0.=1.23 wt.% and L.O.1.=0.01 wt.%), quartz, and feldspar. This invention recycles steel slags as a partial replacement for ball clay (kaolin) to produce eco-friendly porcelain tiles via the conventional powder compaction method. The raw materials are intimately mixed for approximately 25 minutes, pressed into rectangular plates at a mold pressure of 40 MPa, and sintered at temperatures ranging from 1000 to 1300°C ህቪከ soaking times ከርጠ %2 hr to 3 hrs. The steel slag exhibits tremendous positive effects on the properties of the resulting porcelain tiles, enabling lower sintering temperatures, reduced energy consumption, and superior mechanical and durability characteristics while addressing environmental pollution from industrial waste stockpiles.

The present application provides a jade-like glaze, a ceramic tile, and a preparation method thereof, relating to the technical field of ceramic tiles. The jade-like glaze comprises a jade-like protective glaze and a jade-like surface glaze, wherein the jade-like protective glaze comprises the following mineral raw materials in parts by weight: kaolin, ball clay, black soil, nepheline, talc, zirconium oxide, pyrophyllite, zinc oxide, and strontium carbonate; the jade-like surface glaze comprises: petalite, quartz, bauxite, Suzhou soil, zircon sand, and limestone. The ceramic tile comprises a stacked brick layer, a jade-like surface glaze layer, and a jade-like protective glaze layer; wherein the jade-like surface glaze layer and the jade-like protective glaze layer are prepared using the jade-like glaze as raw material. The preparation method of the ceramic tile comprises: sequentially applying the jade-like surface glaze slurry and the jade-like protective glaze slurry on the surface of the brick, firing in a kiln, and obtaining the ceramic tile. By optimizing the surface glaze formula and then combining it with the jade-like protective glaze, the present application makes the glaze surface of the fired ceramic tile warm and soft, with a strong jade texture.

The application relates to the field of glazed tiles, in particular to a high-fine-texture soft-light-sensation surface ceramic tile. The ceramic tile comprises, from bottom to top, a body layer, a bottom glaze layer and a surface glaze layer, wherein the body layer is a ceramic tile body; the bottom glaze, in terms of mass parts, comprises the following raw materials: 12-20 parts of power plant cinder ash, 5-10 parts of white gangue, 10-15 parts of quartz sand, 10-15 parts of kaolin, 2-3 parts of high-alumina bauxite, 4-6 parts of magnesite, 12-15 parts of ball clay, 1-3 parts of black clay, 3-5 parts of montmorillonite, 12-18 parts of pyrophyllite, 10-15 parts of albite, 10-15 parts of potassium feldspar, 3-5 parts of zirconium silicate and 1-3 parts of high-boron glass powder. The application provides a high-fine-texture soft-light-sensation surface ceramic tile and a preparation process thereof, which can have self-cleaning effect, surface fineness and soft-light-sensation surface effect while having excellent anti-skid performance, thereby solving the problem that the performance of the existing glazed tile cannot be comprehensive.

The invention belongs to the technical field of ceramic glazes, and particularly relates to a crystallization process transmutation glaze, a ceramic material using the same and a preparation method of the ceramic material, the crystallization process transmutation glaze is composed of a basic glaze and a crystallization accelerant, the basic glaze comprises 40-60 parts of potassium feldspar, 15-25 parts of quartz powder, 8-15 parts of calcite, 5-12 parts of kaolin and 3-8 parts of zinc oxide; the crystallization accelerant is a compound system of rare earth modified zirconium silicate and acid-washed spodumene powder, and the mass ratio of the rare earth modified zirconium silicate to the acid-washed spodumene powder is 1: (0.3-1.2); the ceramic material comprises the following components in parts by weight: 30-48 parts of ball clay and 25-38 parts of crushed quartzite. Through rare earth modified zirconium silicate crystal nucleus optimization, acid pickling spodumene melt purification, nitrogen-oxygen atmosphere crystallization regulation and green body and glaze synergistic expansion design, the controllability improvement of glaze texture, the remarkable inhibition of pinhole defects and the enhancement of green body and glaze combination stability are synchronously realized under the low-temperature firing condition.

The present invention relates to a wear-resistant, special granite ceramic tile for public spaces and its preparation method. The ceramic tile comprises a polycrystalline wear-resistant base layer and a decorative wear-resistant layer. The polycrystalline wear-resistant base is composed, by weight, of the following raw materials: 8-15% ball clay, 8-15% high-white kaolin, 10-15% mixed mud, 0-5% calcined talc, 3-6% bentonite, 15-25% calcined sodium potassium stone powder, 8-15% finely ground lithium tailings, 4-8% calcined bauxite, 15-25% fine corundum powder, 0-5% ultrafine zirconium silicate, 0-5% high-purity anatase titanium dioxide powder, 0-1% base reinforcement, and 1-3% debonding agent. The polycrystalline base is sintered at high temperature to produce a high-hardness, wear-resistant decorative layer. The product combines the high hardness and good wear resistance of natural granite with excellent physical and chemical properties such as pollution resistance, strength, and radioactivity, perfectly presenting the texture of granite.

The application relates to the technical field of refractory materials, in particular to a kind of refractory brick suitable for combustion chamber of Mannheim furnace and a preparation method thereof, which comprises the following raw materials by weight: 45-50 parts of kaolin, 30-35 parts of bauxite clinker, 12-15 parts of attapulgite, 5-8 parts of ball clay, 5-9 parts of composite binder, 6-19 parts of filler and 3-8 parts of composite additive.In the application, the dense structure of the filler and the strong interfacial bonding force of the modified powder reduce the micro-cracks caused by thermal stress, the piezoelectric effect of barium titanate nano-powder in the composite additive alleviates the internal stress caused by temperature fluctuation, the low-expansion characteristics of hafnium oxide powder and zirconium boride powder are synergistically optimized with the rare earth doped modification of the composite powder to optimize the thermal expansion matching of the brick body, inhibit the structural damage in the thermal shock process, avoid the accelerated penetration of corrosion medium through micro-cracks, ensure the structural integrity of the brick body under the temperature fluctuation working condition of Mannheim furnace, and enhance the thermal shock resistance.

The invention discloses a high-plasticity green body pug based on a low-grade domestic ceramic raw material and a preparation method of the high-plasticity green body pug. The green body pug is prepared from a green body basic raw material, a plasticizer sodium carboxymethyl cellulose and a binder corn starch. Wherein the base raw material of the green body comprises 45-55 wt% of a low-grade domestic ceramic raw material, 5-20 wt% of Suzhou clay, 2-15 wt% of ball clay, 1-6 wt% of bentonite, 5-10 wt% of quartz and 20-25 wt% of feldspar, and the use amount of the plasticizer is 0.2-0.5 wt% of the base raw material of the green body, and the use amount of the binder is 1-1.5 wt% of the base raw material of the green body. The specific type of high-plasticity clay is scientifically combined, compounded and used, and the efficient plasticizer and the binder are accurately introduced, so that the plasticity, the bonding strength and the uniformity of the green body are remarkably improved, the cracking phenomenon of the green body in the drying and sintering processes is effectively inhibited, the qualification rate of domestic ceramic products is greatly increased, and the production cost is reduced. The high-value utilization of the low-grade domestic ceramic raw material is favorably promoted.

The invention relates to the technical field of refractory bricks, in particular to a phosphate combined light-burned high-alumina brick for a high-erosion-resistance Mannheim furnace hearth, which is prepared from the following raw materials in parts by weight: 30 to 35 parts of homogenized alumina, 35 to 40 parts of calcined alumina, 8 to 10 parts of ball clay, 1.5 to 2 parts of mixed liquor, 4 to 6 parts of aluminum dihydrogen phosphate solution and 10 to 15 parts of filler. According to the invention, after zircon in the base material is activated by dilute nitric acid and modified by a silane coupling agent, the surface activity is improved, the zircon and a phosphate binding agent generate strong chemical bonding, nano zirconium oxide in the auxiliary material forms a stable crystal structure after hydrothermal synthesis and high-temperature calcination, and the base material and the auxiliary material are tightly combined in the mixing process; uniformly distributed reinforcing units are formed in the matrix, and through double mechanisms of physical filling and interface chemical bonding, the densification degree and integrity of the matrix are remarkably improved, so that the permeation path of a corrosive medium is effectively blocked, and the long service life of the material is ensured.