106results about How to "Increase high temperature viscosity" patented technology

The invention discloses a glaze and preparation of an embossment phantom glazed brick. The glaze comprises a ground glaze, a surface glaze and an embossment phantom printing glaze, wherein the ground glaze is prepared from a frit b, zirconium silicate, kaolin, calcined kaolin, potassium feldspar powder, fired talc, aluminum oxide powder, quartz powder, carboxymethyl cellulose, sodium tripolyphosphate and water; the surface glaze is prepared from a frit, the frit b, a frit c, kaolin, carboxymethyl cellulose, sodium tripolyphosphate and water; the embossment phantom printing glaze is prepared from parent glaze powder, zinc oxide, tin oxide, cerium oxide and ceramic adhesive roll-printing oil; the parent glaze powder is prepared from the frit c, kaolin, carboxymethyl cellulose, sodium tripolyphosphate and water. The preparation method comprises the following steps: sequentially applying the ground glaze and the surface glaze on a green brick, then printing the embossment phantom printing glaze, performing inkjet printing, and finally firing to obtain the embossment phantom glazed brick. The product disclosed by the invention has unique decorative effect and visual aesthetic feeling; moreover, each indicator can reach the standard requirements, so that the product has relatively strong universality, and is easily popularized in the industry.

The invention discloses a glaze material for Jun red glaze and a process for preparing Jun porcelain from the glaze material. The glaze material consists of the raw materials of melilite, quartzite, calcite, white feldspar, copper ore, ZnO, SnO, GuO, talc, BaO, zirconium silicate and spodumene. The preparation process comprises the following steps: firstly, smashing roughcast raw materials and conducting moulding to fire a plain roughcast, then immersing the plain roughcast into slurry of the glaze material of the Jun red glaze for glazing, and when the slurry adhered on the surface of the plain roughcast is dried, putting the plain roughcast in a kiln for firing, so as to obtain the Jun red glaze Jun porcelain. According to the glaze material for the Jun red glaze and the process for preparing the Jun porcelain by utilizing the glaze material, spodumene and zirconium silicate are added in the glaze material for the Jun red glaze, so that the fired Jun red glaze Jun porcelain is bright in color, mild and smooth in glaze surface, and uniform in cracking, and breaks through the condition that the general Jun red glaze Jun porcelain is dim in color and nonuniform in cracking; the Jun porcelain is taken as the specialty of China, and represents the advanced level of the manufacture process of China, and the social value of the Jun porcelain is improved.

The invention discloses a method for preparing a polished crystal tile, comprising the following steps of: accumulating a mixture of low-temperature clinkers and high-temperature clinkers on a printed tile surface baked at high temperature; baking; and polishing. The polished crystal tile prepared with the preparation process has high high-temperature viscosity and stable glass network structure, the baked clinker has certain height and has stereoscopic impression and artistic feeling. The action of the skeleton of the high-temperature clinker is favorable to the discharge of bubbles, and the obtained enamel layer has few bubbles, high transparency and high enamel quality. By regulating the proportion of the low-temperature clinkers and the high-temperature clinkers, the preparation method is suitable for different baking temperatures, is convenient and flexible and is suitable for different products.

Fused silica glass having an internal transmittance of UV with 245 nm wavelength, being at least 95% at 10 mm thickness, a OH content of not larger than 5 ppm, and a content of Li, Na, K, Mg, Ca and Cu each being smaller than 0.1 ppm. Preferably the glass has a viscosity coefficient at 1215° C. of at least 10^11.5 Pa·s; and a Cu ion diffusion coefficient of not larger than 1×10⁻¹⁰ cm²/sec in a depth range of greater than 20 μm up to 100 μm, from the surface, when leaving to stand at 1050° C. in air for 24 hours. The glass is made by crystobalitizing powdery silica raw material; then, fusing the crystobalitized silica material in a non-reducing atmosphere. The glass exhibits a high transmittance of ultraviolet, visible and infrared rays, has high purity and heat resistance, and exhibits a reduced diffusion rate of metal impurities, therefore, it is suitable for various optical goods, semiconductor-production apparatus members, and liquid crystal display production apparatus members.

The invention discloses a preparation method of an enamel coating. The method comprises the following steps that 1, a metal matrix is pretreated, wherein the metal matrix is subject to heat preservation for 20-40 min at the temperature ranging from 950 DEG C to 980 DEG C and then decarburized, the decarburized metal matrix is placed into an acid solution for acid pickling and taken out till a clean metal surface is obtained, clean water is used for repeated washing to remove surface residual acid liquor, and finally the metal matrix is placed at the temperature ranging 200 DEG C to 300 DEG C, rapidly dried and placed to a dry pollution-free place for standby application; 2, ceramic glaze powder is prepared; 3, ceramic slurry is prepared, and 4, enamelling and firing are carried out. According to the preparation method, the production process is simplified, the production efficiency is improved, an electrophoresis method is adopted for forming a uniform low-porosity porcelain enamel premade coating, the coating is uniform and compact in texture, oxide particles are small, grains are refined, the macro surface of the coating is flat, smooth and glossy, and cracking and block disengagement phenomena are effectively reduced.

The invention provides a novel preform body for bone porcelain and a preparation process of the preform body. The novel preform body for bone porcelain comprises the following components in percentage by weight: 50-55% of bone meal, 24-28% of kaolin, 9-11% of quartz, 8-10% of feldspar, 0.38-0.52% of lithium chinastone, 0.8-1.6% of zircon sand and 0.4-0.8% of nano-aluminum oxide. The preparation process comprises the following steps: mixing various ground materials with proper granularity to prepare the preform body, and calcining once again before the bone meal is mixed. The preform body prepared in the invention is good in thermal shock resistance, high in strength, uniform in structure, compact in toughness and excellent in overall performance.

The invention discloses a wear-resistant glaze for glazed bricks, and a preparation method thereof. The wear-resistant glaze is prepared from raw glaze powder, No.1 frit powder and No.2 frit powder, wherein the raw glaze powder comprises, by weight, 8-12% of kaolin, 10-18% of calcined kaolin, 12-20% of quartz, 12-20% of dolomite, 8-15% of calcined talc, 8-15% of nepheline, 5-10% of zinc oxide, 3-6% of barium sulfate and 6-12% of strontium carbonate. The raw materials of the No.1 frit powder comprise zircon sand and barium sulfate, and raw materials of the No.2 frit powder comprise kaolin, calcined talc, fluorite and barium sulfate. The glaze disclosed by the invention contains barium sulfate, so that the color development condition can be improved, the problem of color difference of red and yellow ceramic ink-jet inks during firing of a product is avoided, and the transparency of the wear-resistant glaze is improved under the condition that the hardness and the wear resistance are notinfluenced.

The invention belongs to the technical field of paint, and relates to glass protection lubricant powder used for titanium alloy die forging forming and paint. The glass protection lubricant powder comprises silicon dioxide (SiO2), sodium oxide (Na2O), calcium oxide (CaO) and boric oxide (B2O3). Brush coating is conducted through suspension prepared from heat-resistant type water-soluble cellulose and water, wherein the grain size of glass powder is 200 meshes or below. The use temperature range of the glass protection lubricant is wide and is between 700 DEG C and 1000 DEG C, melting begins at the temperature of 700 DEG C, and no flowing happens at the temperature of 1000 DEG C. the forging process temperature of titanium alloy is 945+/-15 DEG C. The high temperature viscosity change range of the glass protection lubricant is narrow, and melting coverage can be achieved within the short time of 8 minutes or less. The flowing and protection deficiency phenomena do not happen within the heat preservation time of 8 hours. In addition, the high-temperature contact angle of the prepared glass protection lubricant on the surface of TC4 titanium alloy is small, the temperature is 40 degrees lower than the temperature of 945+/-15 DEG C, and in other words, the titanium alloy surface wettability is good. The friction coefficient measured through a circular ring test is lower than 0.01.

The present invention relates to the field of electronic information base plate materials, particularly to a low dielectric glass fiber component, which comprises, by mass, 54.0-57.0% of SiO2, 12.0-15.0% of Al2O3, 16.0-25.0% of B2O3, 1.0-2.5% of CaO, 2.0-5.0% of MgO, 2.0-4.0% of ZnO, 0.4-2.0% of TiO2, 0-0.5% of ZrO2, and 0.1-1.5% of Bi2O3. According to the present invention, the total amount of ROis controlled at lower than 10% by controlling the composition of SiO2, Al2O3 and B2O3 oxides within a certain range and mainly using the mixed alkaline earth effect, and the water resistance, the acid resistance and the alkali resistance of glass can be improved through the composite adding of a small amount of ZrO2 and TiO2; and by introducing a small amount of Bi2O3 into the composition, the high-temperature viscosity of the glass melt is reduced, such that the effects of melting temperature reducing, energy saving and emission reducing in glass production can be achieved while the dielectric properties of the glass are not damaged.

The present invention relates to a lubricating composition containing (a) an oil of lubricating viscosity, (b) a star polymer and (c) a substantially linear polymer with a weight average molecular weight of 45,000 or less. The invention further provides a method of lubricating a mechanical device, typically a manual transmission with the lubricating composition. The invention further provides for the use of the lubricating composition to provide a number of benefits including lower operating temperatures and fuel economy

The invention provides epoxy rubber composite modified asphalt and a preparation method thereof. The epoxy rubber composite modified asphalt comprises the following components in parts by weight: 10-70 parts of epoxy resin, 5-20 parts of rubber powder, 30-90 parts of asphalt, 0-10 parts of regulating oil, 1-5 parts of a viscosity reducer and 0.1-0.5 part of a composite stabilizer. The epoxy rubber composite modified asphalt has the remarkable technical characteristics of being adjustable in rigidity, low in viscosity in the construction process, high in viscosity and elasticity under the service condition, good in high-temperature stability, high in durability, energy-saving and environment-friendly.

The invention relates to a high-refractive index and low-dispersion heavy lanthanum flint optical glass which is prepared from the following components in percentage by mass of oxides: 9.25-13.37 percent of B2O3, 5.48-7.34 percent of SiO2, 43.60-51.63 percent of La2O3, 3.53-9.12 percent of Y2O3, 4.18-10.23 percent of Gd2O3, 3.47-6.52 percent of Nb2O5, 3.47-6.62 percent of ZrO2, 0.81-1.50 percent of WO3, 3.96-6.95 percent of TiO2, 3.28-6.79 percent of ZnO and 0.61-1.52 percent of Al2O3; and in the composition, the following conditions are also met: B/Si is larger than 1.33 and smaller than 2.54 (by mass percentage), a sum of the mass percentages of La2O3, Y2O3 and Gd2O3 is 58.61-60.32 percent, and a sum of the mass percentages of WO3 and TiO2 is 4.85-8.34 percent. The optical glass does not contain Ta2O3 with high cost to facilitate reduction of the cost of the glass, does not contain alkali metals, alkaline-earth metals and toxic components including Pb, As and Cd either, has the refractive index nd being 1.883-1.915 and an abbe number vd being 35.65-38.32, is excellent in crystallization resistance and is suitable for batch production.

The invention relates to a composite-waste-rubber-powder-particle modified asphalt mixture capable of being stored stably and a preparation method thereof. The preparation method comprises the steps of firstly carrying out deep-desulfurization degradation on low-mesh rubber powder so as to prepare high-desulfurization-degree reclaimed rubber, then, mixing high-mesh rubber powder, the high-desulfurization-degree reclaimed rubber and a small amount of cross-linking agent according to a certain ratio so as to prepare composite waste-rubber-powder particles, then, mixing the composite waste-rubber-powder particles and matrix asphalt, so as to prepare modified asphalt, and mixing the modified asphalt and aggregate, thereby preparing the modified asphalt mixture. According to the composite waste-rubber-powder particles, linear macromolecules in the high-desulfurization-degree reclaimed rubber are uniformly attached to the surface of the rubber powder, and meanwhile, a linear macromolecule-cross-linked structured core-shell structure is formed by using the micro-crosslinking action of the cross-linking agent. Due to the structure, a large number of linear molecules can intermesh in asphalt, and then, a stable rubber powder-asphalt mesh structure is formed, so that the aim of preparing the stably-stored rubber powder modified asphalt mixture is achieved.

The invention provides a silicon-based composite coating, a preparation method and application thereof and an aero-engine, and belongs to the technical field of materials. The preparation method comprises the steps that atmospheric plasma spraying is adopted for spraying a Si-HfO2 composite coating on the surface of a ceramic matrix composite, and a double-pipe independent simultaneous powder feeding mode is adopted for atmospheric plasma spraying so that a Si raw material and an HfO2 raw material can be independently fed to a flame flow center at the same time. The method is simple and convenient to operate, a compact and uniform Si-HfO2 silicon-based composite coating can be obtained, and the service temperature of a silicon-based bonding layer in the silicon-based composite coating is increased. The prepared silicon-based composite coating has better temperature resistance and can meet the design requirements of aero-engines in the future. The silicon-based composite coating can beused for processing an aero-engine, so that the aero-engine has good heat resistance.

The invention discloses a preparation method of a fast-fired ceramic tile and a product thereof. The preparation method of the fast-fired ceramic tile comprises the following steps: A, uniformly mixing green body raw materials, then carrying out ball-milling pulping and drying granulation to prepare green body powder, and carrying out compression molding on the green body powder to obtain a green body, wherein the green body raw materials comprise the following chemical components in percentage by mass: 4.1 to 4.5% of K2O, 1.3 to 1.7% of Na2O and 1.4 to 1.7% of MgO; and B, applying glaze on the surface of the green body; wherein the raw materials of the glaze comprise potassium feldspar, calcined alumina, kaolin, quartz, dolomite and zirconium silicate. According to the preparation method of the fast-fired ceramic tile, fast firing in a short kiln can be achieved, the production speed of the ceramic tile is effectively increased, the productivity of a production line is improved, energy saving is facilitated, and the fast-fired ceramic tile prepared through the preparation method of the fast-fired ceramic tile is high in strength and good in quality.

The invention discloses a composite flame retardant, flame-retardant asphalt and a preparation method of the flame-retardant asphalt. The composite flame retardant comprises montmorillonite and melamine-dicyandiamide formaldehyde resin polyphosphate, wherein the melamine-dicyandiamide formaldehyde resin polyphosphate coats on the surface of the montmorillonite and is inserted between layers of the montmorillonite. According to the composite flame retardant, the dispersibility and the homogeneity of montmorillonite particles in asphalt can be improved, the filling amount of the flame retardant is reduced, and the properties, such as the water resistance, the anti-crack property, the rut resistance, the low temperature resistance, the thermo-oxidative aging resistance and the photo-oxidative aging resistance are improved at the same time.

The invention relates to special HME fiber glass for wind turbine blades, which is mainly prepared by mixing SiO2, Al2O3, Fe2O3, CaO, MgO, NaO2 and K2O according to the proportion; and the special HME fiber glass is characterized in that the following components are added in the components by weight percent: 0.3-2.5% of TiO2, 0.1-0.6% of LiO2, 0-0.8% of WO3, and 0.1-0.6% of CeO2. The special HME fiber glass takes the SiO2, the Al2O3, the CaO and the like as the main components, further adds four important auxiliary components of the TiO2, the LiO2, the WO3 and the CeO2, and mainly uses the TiO2 for replacing B2O3 and F2 which are conventional in alkali-free glass fiber, thereby realizing the environment-friendly property; the WO3 is used selectively, so as to improve the elastic modulus and the acid resistance of the special HME fiber glass for the wind turbine blades while ensuring the cost; particularly, the SiO2 is selected to be more than 58%, so as to improve the high-temperature viscosity of the glass. In short, the special HME fiber glass for the wind turbine blades produced by using the components has the advantages of high elastic modulus, high requirement on product rigidness, good acid resistance and good insulation performance.

The invention provides a low-cost high-precision molding optical glass, with density below 4.54 g/cm³, refractive index ranging from 1.85 to 1.95, Abbe number ranging from 25 to 35 and transition temperature lower than 610° C. Expensive Ta₂O₅ is not added in the invention, so the production cost is saved, and resource saving is realized; the combination of B₂O₃ and La₂O₃ effectively improves the devitrification resistance and the chemical stability of glass; the combination of WO₃ and TiO₂ allows the staining degree of the optical glass to be excellent; and the combination of Gd₂O₃ and La₂O₃ effectively improves the devitrification resistance of the glass.

The invention relates to a building material mildew-resistant additive. The building material mildew-resistant additive comprises, by weight, 25 to 55 parts of quicklime, 20 to 35 parts of zirconium dioxide, 2 to 15 parts of fumaric acid diester, 10 to 30 parts of mint and 5 to 17 parts of xanthan gum. The building material mildew-resistant additive has a low production cost and lasting mildew-resistant and antibacterial effects and does not produce the side-effect on a human body.