53results about How to "The preparation process requires simple" patented technology

The invention discloses a method for making a super-high temperature resistant ceramic coating. The method adopts organic polymer as adhesive and mixed powder consisting of high melting metal powder, B powder, C powder and Si powder as raw materials; moreover, through adopting processes such as preparing slurry used in a coating, slurry coating, precoating curing, high-temperature reaction sintering, a super-high temperature resistant ceramic coating is finally made on the surface of a ceramic matrix composite material. The coating making process is simple and has low cost; the made coating has ideal bonding performance with a substrate and has excellent ablation resistance and antioxidation, thereby laying the foundation for the application of a ceramic matrix composite material in the super-high temperature resistant and antioxidation fields.

The invention relates to a preparing method of a metal carrier catalyst coating, wherein, the metal carrier catalyst coating which has an alloy metal high temperature treated as a substrate firstly loads a first layer alumina sol AlOOH, after drying loads a second layer Al2O3 paste, then drying and calcining to obtain a firmly coating; or loads mixed paste comprised by Al2O3 and the other metal oxide required by reaction on the dried AlOOH coat to obtain a catalyst active coat after drying and calcining; or an active coating for especial reaction is obtained by further loading paste which is the other metal oxide required by reaction on the second Al2O3 paste coat, and then drying and calcining. Then the active components are loaded on the obtained catalyst coating, after drying and calcining to prepare the metal carrier catalyst. The coating and the metal carrier of the invention are combined firmly. The invention can prepare the composite coating metal carrier catalyst based on different reaction requirement and the process and device for preparing is simple.

The invention discloses a C / SiC ceramic matrix composite spring and a preparation method thereof. According to the spring, silicon carbide is used as a matrix, 30 to 45 volume percent of carbon fibers are used as a reinforced phase, and a SiC coating is deposited on the surface of the spring; and the rigidity of the spring is 3.5 to 8 N / mm at room temperature, and the retention rate of the rigidity in the air at the temperature of between 800 and 1,200 DEG C is 70 to 85 percent. The method for preparing the spring comprises the following steps of: impregnating, winding for forming, and crosslinking at the room temperature to obtain a spring prefabricated member; heating, so that a paraffin die is melted or is dissolved in water, sleeving the demolded spring prefabricated member on a graphite die, and cracking to obtain a spring rough blank; compacting repeatedly to obtain a semi-finished product of the spring; and performing surface antioxidation treatment through chemical vapor deposition. The preparation method is simple, low in requirement on equipment and short in period, the net forming of the product is realized, and the quality and performance of the product are high.

A large acreage thermolysis structure used in the high-power semiconductor device belongs to the field of preparing the high-power semiconductor device. It adopts the hyperbatic welding method, joints the die with the heat sink with high thermal conductivity through the heat conducting insulation film and also can add heat sink to the substrate of the hyperbatic welding chips to form the double ended thermolysis structure. The invention makes the heat source of the device and the metal salient points form the thermolysis thoroughfare through the heat conducting insulation film in the front of the device, can reduce the thermal resistance of the device to extremely low level, thus avoids the effect of self healing when working in heavy duty and increases the stability and reliability of the device. In addition, the method disclosed by the invention is featured by simple technique and low cost and is adaptable to mass production.

The invention relates to a halogen-free flame-retardant phenolic epoxy glass cloth laminate and a preparation method thereof, and the laminate comprises alkali-free glass cloth and matrix resin; wherein the matrix resin comprises the following components: 24 wt%-36 wt% of epoxy resin, 16 wt%-24 wt% of phenolic resin, 5 wt%-10 wt% of aromatic amine curing agents, and 40 wt%-45 wt% of halogen-free phosphorus-containing nitrogen-containing fire retardants. The preparation method comprises the following steps: preparing the halogen-free phosphorus-containing nitrogen-containing fire retardant by Michael addition, proportionally mixing the components of the matrix resin, and performing dipping and hot-pressing of the alkali-free glass cloth to obtain the product. The composite material of the invention has a vertical combustion level of up to UL94 V-0 grade, has excellent flame retardant effect, good electrical and mechanical properties, and is applicable to printed circuit boards and other related electronic and electrical insulating materials or structural materials; the invention has a simple preparation process, low cost, convenient operations, and simple preparation process requirements, and facilitates the realization of industrial production.

The invention relates to a method for preparing an enamel surface coating with hydrophobic effect. The method includes the following steps of: (1) cleaning an enamel substrate by using deionized water and drying the enamel substrate in a drier; (2) preparing sol by mixing Si(OC2H5)4, C2H5OH, H2O, HCl and DMF with the mol ratio of 1 to 2.5:2 to 5:3 to 8:0.1 to 0.4:1 to 4, stirring the mixture for 1-2h at the room temperature, and adding a hydrophobing agent to obtain the pH value ranging from 1 to 4; (3) seasoning the sol at the room temperature for 8-12 days; and (4) adopting a dip coating method to dip the enamel substrate in the step (1) in the sol and to vertically lift and pull the enamel substrate, and keeping the temperature of the enamel substrate at the temperature ranging from 60 DEG C to 200 DEG C for 5-20h, and obtaining the enamel surface coating after cooling. The material of the enamel surface coating with the hydrophobic effect has high combination strength, the contact angle can reach 140 degrees, the hydrophobic effect is good and can be kept for long time, the preparation method is simply and conveniently operated, and the production cost is low.

The present invention relates to one kind of external color filter for LCD panel and one LCD panel structure with the color filter. The external color filter has the structure including one substrate layer with BM and three color layers of R, G and B; one OC layer covering the substrate layer and one optional protecting layer on the OC layer. The independent color filter film may be combined with LCD panel through adhesion in one of the optional positions while ensuring the precise positioning of BM and three color layers of R, G and B to the ITO lines. The present invention has simplified color LCD panel manufacture, raised color filter utilization and lowered cost.

The present invention discloses a novel SiO2 / TiO2 photocatalytic composite powder preparation method, which comprises: adopting elemental silicon powder as a main reactant and adopting sodium silicate and ammonia water as catalysts to react under a hydrothermal condition, and carrying out cooling and suction filtration to prepare a nanometer SiO2 sol A; adopting the nanometer SiO2 sols with different concentrations as dispersing liquids and adopting sodium hexametaphosphate (SHMP) and sodium dodecyl sulfate (SDS) as dispersing agents to treat nanometer TiO2 powder for a certain time at a certain ultrasonic power and a certain frequency to obtain a uniformly-distributed composite pre-dispersing liquid; and carrying out water bath evaporation on the pre-dispersing liquid under a stirring condition, drying, compounding the nanometer TiO2 particles and the nanometer SiO2 particles during a foaming process, and finally carrying out calcination grinding to obtain the TiO2 / SiO2 photocatalytic composite powder. According to the present invention, the preparation process is simple and easy to perform, the preparation period is short, and the obtained SiO2 / TiO2 photocatalytic composite powder has characteristics of particle size of 0.1-3 [mu]m, high purity, and high yield.

The invention relates to a method for loading a coating on sponge metal and a sponge metal carrier coating prepared by the same. The method performs gradual transition through surface pretreatment, oxidation treatment, alumina sol loading, drying, aluminum oxide slurry loading and drying and baking processes, thereby preparing a sponge metal carrier coating in firm combination; the coating has high firmness, and the preparation technology is simple; and one or several metal oxides or salts can be loaded as necessary, and the coating is a catalyst carrier coating which can be applied to catalytic reaction. The invention also relates to a method for loading a catalyst on sponge metal and a catalyst prepared by the same; and an iron-chromium-aluminum sponge metal carrier catalyst can be prepared by loading precious metal active components on the carrier coating.

Disclosed is a technology for cleanly and efficiently processing lead-bearing waste residues. The lead-bearing waste residues produced by lead smelting and lime are matched according to the mass ratioof 1:0.03-0.07 and are then pressed into blocky lead-bearing residue blocks, and after natural drying, by mass, 7%-15% of coke, 9%-11% of silica and 74%-84% of the lead-bearing residue blocks are matched. Materials are sequentially added into a five-section integrated type smelting furnace, ignition blowing-in is conducted for oxygen-enriched intensified smelting, materials added from a smeltingfurnace feeding section (1) pass through a preheating section (2), a sintering section (3), a half-melting section (4), a smelting section (5) and a layering section (6), and the smelting process of the materials is completed. Through the technology, material preheating, sintering, smelting and clarification laying are integrated, heavy metal, valuable metal, gangue and the like are selectively separated well, dangerous waste is processed cleanly and efficiently, and the technology has the advantages that the process is short, operation is simple and convenient, and investment is small.

The invention discloses a preparation method of stretched curd type mixed cheese and mixed cheese obtained thereby. The preparation method adopts mixed milk as raw materials, which is formed by replacing cow milk with limited enzymatic soymilk part. The prepared mixed cheese by replacing cow milk with limited enzymatic soymilk part can basically reach the level of high-quality cheese in the aspects of meltability and stretchability and the like.

The embodiment of the invention discloses an array substrate, a display panel and a display device, wherein the array substrate comprises a substrate base plate; a scanning wire and a data wire, which are formed on the substrate base plate, wherein the scanning wire and the data wire are crossed to define a plurality of pixel units, and the pixel units are provided with pixel electrodes electrically connected with the data wire; a plurality of touch electrodes, a plurality of touch walking wires and a span structure; the touch walking wires are electrically connected with one corresponding touch electrode through the span structure; along the extending direction of the scanning wire, the distance between adjacent two first pixel electrodes is more than the distance between the adjacent first pixel electrode and the second pixel electrode, and more than or equal to the distance between two second pixel electrodes. In conclusion, the distance between the pixel electrode and the span structure is big, the technique requirement is simple, and the production cost can be reduced.

The invention relates to a sintered coupling ring (1), comprising an annulus of coupling teeth (2), which have flanks (4) that are drawn back and that extend from wedge-shaped end faces (3) and, on the side opposite the wedge-shaped end faces (3), a stop (5) that protrudes radially beyond the tooth tip (6). In order to create advantageous design conditions, the stops (5) have a greater density than the remaining tooth tip (6).

The embodiment of the invention discloses an array substrate, a display panel and a display device. The array substrate comprises a substrate base plate, multiple scan lines and multiple data lines, wherein the multiple scan lines and the multiple data lines define multiple pixel units in an insulated and crossed mode, and pixel electrodes electrically connected with the data lines are arranged in the pixel units. A touch wire is electrically connected with one corresponding touch electrode through a bridge-across structure. The bridge-across structure is arranged at the crossed position of at least one pixel electrode and is arranged at the same layer with the pixel electrodes. Each pixel electrode comprises two end electrodes in the data line extending direction. In the scan line extending direction, the distances between the end electrodes of two adjacent first-type pixel electrodes are greater than those between the end electrodes of the first-type pixel electrodes and second-type pixel electrodes which are adjacent and are greater than or equal to those between the end electrodes of two adjacent second-type pixel electrodes. In conclusion, the distances between the end electrodes of the pixel electrodes and the bridge-across structures are larger, the process requirement is simple, and the production cost is low.

A process for making a brick comprises the steps of prearranging at least one pair of half-shells (3a, 3b) and fixing said half-shells (3a, 3b) to each other to define a main body (2) of the brick with a cavity {4} therein. The process further comprises the step of introducing a preset quantity of argon into said cavity (4), A brick comprises a pair of half-shells (3a, 3b) fixed to each other to define a main body (2) of said brick (1); said main body (2) exhibits an inner cavity (4); said cavity (4) holds a preset quantity of argon.

A substrate including a sapphire substrate and a patterned AlN film formed on the sapphire substrate, a semiconductor device and a substrate manufacturing method are disclosed. The semiconductor device includes the substrate and an epitaxial layer formed on the substrate. The preparation method of the substrate comprises the following steps: firstly evaporating a mask material; secondly dry-etching the mask; thirdly wet-etching the AlN; and finally removing the mask material to form a patterned AlN film. According to the invention, a patterned AlN film can be prepared on the AlN / sapphire template by using a conventional process. Dry etching and wet etching are combined to ensure both etching accuracy and etching rate. Requirements for the preparation process are very simple, and the test method is convenient. In the invention, periodic patterns on an AlN film are prepared through etching AlN on the AlN / sapphire template, thereby achieving the purpose of improving crystal growth qualityand device efficiency.

The invention discloses a C / SiC ceramic matrix composite spring and a preparation method thereof. According to the spring, silicon carbide is used as a matrix, 30 to 45 volume percent of carbon fibers are used as a reinforced phase, and a SiC coating is deposited on the surface of the spring; and the rigidity of the spring is 3.5 to 8 N / mm at room temperature, and the retention rate of the rigidity in the air at the temperature of between 800 and 1,200 DEG C is 70 to 85 percent. The method for preparing the spring comprises the following steps of: impregnating, winding for forming, and crosslinking at the room temperature to obtain a spring prefabricated member; heating, so that a paraffin die is melted or is dissolved in water, sleeving the demolded spring prefabricated member on a graphite die, and cracking to obtain a spring rough blank; compacting repeatedly to obtain a semi-finished product of the spring; and performing surface antioxidation treatment through chemical vapor deposition. The preparation method is simple, low in requirement on equipment and short in period, the net forming of the product is realized, and the quality and performance of the product are high.

The invention relates to a preparation method of a refractory coating for carbon fiber enhanced polyimide composite board. The method comprises the steps of: (1) mixing anhydrous alcohol, alcohol soluble resin (phenolic resin or epoxy resin) and ammonium chloride powder according to a certain proportion, and stirring evenly a premixed coating; (2) according to the weight of the premixed coating, weighing a certain proportion of p-toluenesulfonic acid, mixing p-toluenesulfonic acid with the pre-mixed coating, and stirring evenly to obtain a final coating; (3) evenly coating a sample surface with the above coating, then naturally curing the sample coated with the coating in the air, and drying the sample in an air blast drying box at a certain temperature; and (4) repeating the step (3) to obtain samples with different layers. The preparation process provided by the invention has simple requirements and is suitable for industrial production; and the refractory coating prepared by the invention has high combination strength, uniform coating and good heat shock resistance.

The invention relates to a halogen-free phosphorus-free modified magnesium hydroxide flame retardant ethylene-vinyl acetate copolymer and a preparation method thereof. The copolymer comprises 25 wt% to 33 wt% of ethylene-vinyl acetate copolymer grains, 55 wt% to 65 wt% of halogen-free phosphorus-free modified magnesium hydroxide powder and 2 wt% to 12 wt% of EVA-D4085 compatibilizer. The preparation method comprises the steps of: cutting the magnesium hydroxide powder, silane coupling agent containing amino group, and water at a high speed; adding three (epoxypropyl)-isocyanurate dissolved inanhydrous alcohol and continuously cutting at room temperature at a high speed; heating, stirring and reacting to obtain halogen-free phosphorus-free modified magnesium hydroxide powder; and uniformly mixing the modified magnesium hydroxide powder, the ethylene-vinyl acetate copolymer grains and the EVA-D4085 compatibilizer to obtain the required copolymer. The composite material has the advantages of obvious flame retardant effect, good mechanical property, simple preparation technology, low cost and convenient operation, and is beneficial to realizing industrial production.

The invention discloses an offset type starting vector sealing valve which comprises a valve body, a valve plate and a valve shaft. The valve plate is rotatably connected to the valve body, an axial half inner cavity of the valve body is a hemispherical cavity, the other half inner cavity of the valve body is a cylindrical cavity, a vector sealing ring is embedded in the cylindrical cavity, and the inner surface of the vector sealing ring and the hemispherical cavity of the valve body form a spherical section cavity. The radial outer side surface of the valve plate is consistent with the spherical section cavity, the center of one side of the valve plate is symmetrically and fixedly connected with a sector gear in the axial direction, a driving gear meshing with the sector gear is fixedly connected to the valve shaft, and the valve shaft is rotationally connected to the valve body and deviates from the center of the valve plate by a certain distance. The spherical surface of the valve plate is thoroughly in full self-positioning contact with the spherical section cavity of the valve body, complete spherical surface rigid sealing is achieved, the sealing effect is better, and the axial bearing capacity is better; the assembly precision is reduced, the installation of the valve is more convenient, and the installation difficulty is reduced; and offset starting is adopted, the starting torque is reduced, and more labor is saved or the power of a driving motor is reduced.

The invention provides a detachable battery door lock mechanism and a waterproof X-ray digital flat panel detector. The detachable battery door lock mechanism comprises a lock tongue device, an elastic device and a rotation device, wherein the elastic device is in contact with the lock tongue device and is used for applying a reverse elastic force onto the lock tongue device to make the lock tongue device automatically returned and lock a detachable battery when the assembly of the detachable battery is completed, and the rotation device is connected with the lock tongue device and used for driving the lock tongue device to inwards contract and pressing the elastic device to release the detachable battery when the detachable battery is disassembled. The detachable battery door lock mechanism provided by the invention is simple in structure, is convenient to operate and has favorable maintainability, and the detachable battery can be rapidly disassembled and can be automatically protected; moreover, the fabrication process is simple in requirement, and the production efficiency and the practicability of the detector are improved; and meanwhile, the detachable battery door lock mechanism provided by the invention has relatively high water prevention performance.

The present invention discloses freeze-drying type TiO2 / SiO2 photocatalytic composite powder and a preparation method freeze-drying method thereof, and belongs to the technical field of photocatalytic materials. According to the present invention, elemental silicon powder is adopted as a main reactant, sodium silicate and ammonia water are adopted as catalysts, a reaction is performed under a hydrothermal condition, cooling and suction filtration are performed to prepare a nanometer SiO2 sol A, the nanometer SiO2 sol A is adopted as a dispersing liquid, polyethylene glycol (PEG) and sodium hexametaphosphate (SHMP) are adopted as dispersing agents, nanometer TiO2 is subjected to an ultrasonic treatment for a certain time at a certain ultrasonic power and a certain temperature to obtain a uniformly-distributed composite pre-dispersing liquid B, the composite pre-dispersing liquid B is placed into a freeze-drying machine to dry at a certain condensation speed at a set temperature under a set vacuum degree, and the dried powder is subjected to calcination grinding to obtain the TiO2 / SiO2 photocatalytic composite powder. According to the present invention, the preparation process is simple and easy to perform, the preparation period is short, and the composite powder prepared by using the freeze-drying method has characteristics of uniform component, particle size of 0.1-0.5 [mu]m, high purity, and high yield.

The application discloses a substrate, a semiconductor device and a manufacturing method of the substrate. The substrate includes a sapphire substrate and a patterned AlN thin film formed on the sapphire substrate. The semiconductor device includes the substrate and an epitaxial layer formed on the substrate. The manufacturing method of the substrate includes: first evaporating mask material, then performing dry etching mask, then etching AlN by wet method, and finally removing mask material to form a patterned AlN thin film. In the present invention, a patterned AlN thin film can be prepared on an AlN / sapphire template by using a conventional process. The combination of dry etching and wet etching is used to ensure both etching accuracy and etching rate. The requirement for the preparation process is very simple, and the testing method is convenient. The invention uses AlN / sapphire template to etch AlN to prepare periodic patterns on the AlN thin film, so as to achieve the purpose of improving crystal growth quality and improving device efficiency.

The invention discloses a device for efficiently treating domestic sewage by utilizing ozone. The device comprises an aeration chamber and a main reaction chamber; an aeration device is arranged in the aeration chamber, an ozone gas generating device is arranged on the outer side of the aeration chamber, the ozone gas generating device is connected with the aeration device through an ozone conveying pipe, and a first exhaust pipeline and an exhaust safety valve are arranged on the aeration chamber; a bracket is arranged in the main reaction chamber, a sieve plate is arranged on the bracket, reaction promoting filler is stacked on the sieve plate, and a second exhaust pipeline and a gas-liquid separation device are arranged on the main reaction chamber; a U-shaped pipeline is arranged between the aeration chamber and the main reaction chamber, and an ultraviolet irradiation device is arranged on the U-shaped pipeline; a lower pipeline is arranged between the aeration chamber and the lower side of the main reaction chamber and is provided with a water pump, a water inlet branch pipe, a water outlet branch pipe, a water inlet valve and a water outlet valve. The device has the advantages of long contact time of ozone and sewage, high utilization rate, simple manufacturing requirement of the whole equipment, lower cost, lower energy consumption and higher treatment rate.