37results about How to "Full size" patented technology

The invention discloses a preparation method of SiO2/TiO2 composite microspheres, which comprises the following steps: taking butyl titanate and ethyl orthosilicate as raw materials, taking ammonia and anhydrous alcohol as solvents, taking citric acid as a complexing agent, taking polyoxyethylene as a dispersant, adding sol containing Ti into wet gel containing Si under continuous stirring, then evaporating by a water bath, drying and foaming for leading the two to compound, finally calcining and then preparing the SiO2/TiO2 composite microspheres. The method has short preparation cycle, the prepared SiO2/TiO2 composite microspheres are shaped like complete spheres with the size of 70-200nm, and the purity and the finished product rate are very high.

The invention relates to a method for preparing multi-shape controllable nano nikel-cobalt spinel oxide. The method includes the steps that nickel nitrate and cobalt nitrate are dissolved in anhydrous ethanol according to the cobalt-nickel atom ratio to form a solution A; oleylamine is dispersed in an ethanol solution to form a solution B, and the solution B and the solution A are mixed to obtain a mixed solution; the mixed solution is fully and evenly stirred and moved into a dynamic reaction kettle, H2 is replaced in a sealed mode, pressure intensity of H2 is adjusted to 6-15 bar after replacement, and a steel cylinder air outlet valve is closed; the stirring speed of the dynamic reaction kettle is adjusted to 400 r/min, temperature is set to be 150 DEG C, and reaction is carried out for 10 h; a product is cleaned through ethanol and other nonpolar solvents respectively, centrifugal separation is carried out, and a sediment precursor is obtained through drying at the temperature of 60 DEG C; the temperature of the obtained sediment precursor rises in an air atmosphere at the speed of 10 DEG C/min, and the sediment precursor is heated to 200-400 DEG C and kept warm. According to the method, procedures are few, materials are easy to get and low in price, the procedures are safe, nikel-cobalt spinel oxide of different shapes can be obtained by changing a small condition in the procedures, and accordingly preparing of the controllable nano nikel-cobalt spinel oxide is achieved.

A collapsible cage/crate for pets having an inner framework within a soft-sided shell. The internal framework is integrated and manipulated by two locking hubs such that when the hubs are unlocked and urged towards each other, the crate collapses. In its deployed configuration, the crate provides an area for an animal to be confined whereas when the crate is collapsed the crate is compact and easy to transport. The outer shell of the crate is formed of fabric and includes one or more mesh panels in order to provide airflow into and out of the crate. Access is gained to the interior of the crate through one or more doors.

The invention discloses a method for preparing SiO2/TiO2 composite powder, which comprises the following steps of: dissolving tetraethoxysilane and ammonia water in absolute ethyl alcohol respectively, mixing the tetraethoxysilane and the ammonia water at one time under the ultrasonic condition, continuously performing ultrasonic separation and precipitation to obtain SiO2 submicron spheres with uniform particles and complete appearance; adding the SiO2 submicron spheres into tetrabutyl titanate sol C taking the ammonia water as a solvent, citric acid as a complexing agent and polyethylene glycol as a dispersing agent, performing sufficient ultrasonic dispersion, and stirring and heating to obtain wet gel; and further drying and foaming to compound SiO2 and TiO2 constantly, and calcining to obtain the SiO2/TiO2 composite powder. The method disclosed by the invention has short preparation period; and the prepared SiO2/TiO2 composite powder is complete spheres of which the particle size is 200 to 600nm and has high purity and yield.

The present invention discloses a method for preparing a completely-degradable composite material through acid anhydride and microcrystalline cellulose synergetic modification on poly(propylene carbonate), wherein 50-95 parts by mass of degradable poly(propylene carbonate), 0.1-10 parts by mass of an acid anhydride and 5-50 parts by mass of microcrystalline cellulose are subjected to melt mixing to form a master batch of a completely-degradable composite material, and mold pressing molding is performed to obtain the sample. According to the present invention, the completely-degradable composite material prepared through the method has characteristics of good mechanical property and good thermal stability, and the processing stability and the mechanical property of the prepared product can be effectively improved.

The invention discloses a preparation method of a polypyrrole/metal-modified Sn3O4 nano composite photocatalytic material. The nano composite material is a composite photocatalyst material obtained byloading and dispersing metal-modified Sn3O4 semiconductor heterojunction on polypyrrole in a chemical bond complexing form; and the metal-modified Sn3O4 is obtained by separately loading metal nano particles of a single-component metal or multi-component alloy of Pt, Au, Ag, Cu and the like having a plasma resonant effect onto Sn3O4. The photo-induced electron-hole separation rate in the photocatalytic reaction can be sufficiently improved by utilizing the visible light photocatalytic oxidation and reduction characteristics of Sn3O4, the plasma resonant effect of metal nano particles, photo conduction and conductivity of polypyrrole as well as the chemical bond heterojunction structure among different components, so that the performance for degrading pollutants in a photocatalytic oxidation and reduction manner and generating hydrogen by photocatalytic and decomposition of water can be improved. The easy-to-mold characteristic of polypyrrole can effectively avoid the recycling difficulty of the powder material.

The invention relates to a preparation method of an Au modified SnO/Sn3O4/SnO2 nano composite photocatalytic material. The nano composite material is obtained by placing chloroauric acid and a tin source into a solvent, a surfactant and a reducing agent and forming chemical bond complexing among composite ingredients of the materials according to an ice salt bath and solvent combined hot wet chemical in-situ synthesis method. The composite material prepared by the invention utilizes a plasma resonance effect of Au metal nanoparticles, an excellent energy level matching heterojunction structureamong composite components of a tin oxide material and excellent electron conduction of Au metal nanoparticles, and implements rapid electron-hole separation in the process of cooperating photocatalytic oxidation and reduction degradation of pollutants with photocatalytic water splitting hydrogen production, thereby improving efficiency of photocatalytic water splitting and photocatalytic rhodamine B degradation of the Au modified SnO/Sn3O4/SnO2 nano composite photocatalytic material.

The invention relates to an internal-drive internal indirect feedback type digital hydraulic cylinder structure. The internal-drive internal indirect feedback type digital hydraulic cylinder structurecomprises a cylinder body, a hollow piston rod, a large-lead spiral body, a valve element, a valve body and a stepping motor; the hollow piston rod is slidably mounted in the cylinder body, the valvebody is mounted on a cylinder body rear end cover and coaxially connected with the cylinder body, the valve element is arranged in the valve body, and one end of the valve element is coaxially and rotatably connected with the large-lead spiral body; the large-lead spiral body enters a hollow cavity of the hollow piston rod through the cylinder body rear end cover and a cylinder rear cavity; a nutis fixedly mounted at the position, at an inlet of the large-lead spiral body, of the end of the hollow piston rod, and the nut is engaged with the large-lead spiral body; and the other end of the valve element is fixedly connected with the output end of the stepping motor. The internal-drive internal indirect feedback type digital hydraulic cylinder structure has the advantages that the hydraulic cylinder stroke reaches 0.5-1.0 m or even more, the operating speed is higher, and the price is lower relatively; and through structural optimization and the layout design of the space position of oil holes, the valve structure becomes compact, and the overall structure size of a hydraulic cylinder is smaller under the situation that a certain stroke is met.

This invention, integrates and combines artists functions; is both a stand-alone and companion product in near custom fits for many, various sized pochade easels. It simultaneously functions as an all in one, optimally sized acrylic or similarly transparent; smooth, undivided palette tray in materials oil and outdoor painters need and as a paint storage/preservation device that withstands freezing temperatures; eliminates the transfer of unused paint; and as a tool to apply color mixes, evaluating them directly to artists subject, visible through the transparent cover that also affords instant visibility of palette's current pigment load. Its Value and Color Isolator, readily aids in assessments and comparisons of artist subject and finished paintings. Meaningful changes and improvements in materials and sizes along with the combination of additional functions makes artists work easier with almost effortless strategy for preserving unused paint, thus reducing paint waste, benefitting the environment and artists pocketbook.

The invention provides a novel rout for preparing graphene using ethanol as liquid phase by a planetary ball mill wet method. The preparation method comprises the following steps: using expanded graphite after being calcinated at a high temperature as a raw material, using ethanol as an organic solution, and grinding and mechanically exfoliating the expanded graphite by the planetary ball mill wetmethod to obtain the graphene with a relatively complete sheet layer and relatively large crystal size. The method has the advantages of simple production process and low cost. The prepared graphenehas fewer defects, more complete sheet layers, and broader prospect for the future application of the graphene compared with dry graphene.

The invention relates to a ginkgo vacuum flexible packaging process. The process is that: implementing the screening classification on ginkgo nuts first; boiling the classified ginkgo nuts at high temperature, wherein, the central temperature during the high temperature boiling reaches to 90 DEG C and the time is 15-25min; then implementing cracking, hot air decorticating, kernel selecting, classifying packaging, vacuum sealing, high temperature sterilization and cooling, wherein, the cooling temperature is required to be decreased within 10-12min. At last, the finished product is obtained. The product made through the invention is light green and light yellow. The kernel is uniform and integrated. The original flavor and nutrition components of the ginkgo in Nanxiong are reserved.

The invention belongs to the technical field of rubber sealing strip cutting. A rubber sealing strip feeding device comprises two feeding sliding rails, a first feeding assembly, a second feeding assembly, a feeding moving air cylinder and a feeding transferring assembly; the two feeding sliding rails are arranged on a rack in the front-back direction; the first feeding assembly and the second feeding assembly are connected through a feeding connecting plate; the feeding moving air cylinder is arranged on the bottom face of the rack, and a moving portion of the feeding moving air cylinder is connected with the first feeding assembly; the first feeding assembly comprises a feeding moving bottom plate, a rubber sealing strip limiting frame, a rubber sealing strip limiting adjusting frame, amotor support, a plurality of feeding driving motors and a plurality of motor matching lifting frames; and the feeding transferring assembly is used for sucking and transferring rubber sealing stripsin a plurality of limiting neutral positions. The rubber sealing strip feeding device has the beneficial effects that the multiple rubber sealing strips can be conveniently conveyed at the same time,and the device can be suitable for the rubber sealing strips of different specifications.

The invention belongs to the technical field of rubber sealing strip cutting. Rubber sealing strip cutting equipment comprises a rack, and a feeding device, a conveying device, a cutting device, a conveying belt device, a transferring device and a discharging device arranged on the rack. The feeding device is used for conveying and feeding a plurality of rubber sealing strips to the cutting deviceat the same time; the cutting device is used for cutting the rubber sealing strips; the conveying belt device is used for horizontally conveying the cut rubber sealing strips; and the discharging device is used for conveying and discharging the cut rubber sealing strips. The rubber sealing strip cutting equipment and cutting method provided by the invention have the advantages that the rubber sealing strip conveying efficiency is improved, the cohesion between rubber sealing strip conveying and rubber sealing strip cutting is improved, and the overall assembly line machining fluency is improved.

The invention provides a novel method for preparing graphene with glycerol as a liquid phase by using a planetary muller through a wet method. The preparation method comprises the following specific steps: by taking expanded graphite after high-temperature calcination as a raw material and glycerol as an organic solution, performing mechanical peeling on the expanded graphite by using the planetary muller through wet-type grinding, thereby obtaining graphene which is relatively complete in lamella and relatively large in crystal size. The novel method is simple in production process, low in cost, relatively small in defect when being compared with dry-type graphene, relatively complete in lamella, and relatively wide in application prospect.

The invention discloses a current-limiting variable phosphate-removing reactor and a method for removing phosphate in waste water. A reactor body comprises a water inlet zone, a variable reaction zone and a settling zone respectively from down to up, a slag removal opening and a sludge bucket are arranged at the lower part of the water inlet zone, an inlet pipe, an aeration pipe and a drug inlet pipe are arranged in the water inlet zone, a control flange, a support separation net, a sludge removal port, and a backflow port are arranged in the variable reaction zone; and an overflow port, an outlet pipe and a back flow pipe are arranged in the settling zone. The method combines flocculation, adsorption, filtering, crystallization for phosphate removing, and combines phosphate removing and phosphate storage; the functions of each unit is complementary, the structure is compact, the land occupation area is little; the reaction zone is adjustable, the operation is flexible; the biological sludge is taken as a medium, waste can be used for treating waste, and the method has large reutilization potential.

The invention provides a small turbine jet engine which comprises a compressor component and a combustion chamber component. The compressor component and the combustion chamber component are respectively located an air inlet end and a jet end of the small turbine jet engine. The compressor component comprises a compressor and a turbine, and the compressor and the turbine are integrally designed. By the adoption of the integral design of compressed air turbine blades, difficulty in design is reduced, and machining and assembling of a small structure are benefited; by the adoption of a reversed-flow type combustion chamber, compactness of the overall layout is benefited, dimensions in design are well controlled, and sufficient space is reserved for improving combustion efficiency; besides, the temperature of a whole shafting is effectively lowered due to outside motion of a bearing, overall system reliability is improved, service life is prolonged, requirements on bearing quality is lowered, and overall cost can be beneficially reduced.

Embodiments of the invention disclose a preparation method for an ultrafine calcium zincate crystal applied to a zinc battery. The preparation method comprises the following steps: (a) dissolving zincoxide in an alkaline solution to prepare an alkaline saturated zinc oxide solution; (b) adding a calcium silicate seed crystal having a particle size of 2000-8000 meshes into the alkaline saturated zinc oxide solution under stirring to obtain a mixed solution; (c) separately adding calcium hydroxide and zinc oxide in a molar ratio of 1: 2 into the mixed solution for a reaction under the conditionof continuous stirring; and (d) after the reaction is completed, performing suction filtration, washing and drying to obtain the ultrafine calcium zincate crystal. The calcium zincate crystal prepared by using the preparation method of the invention has a small and uniform particle size, a complete crystal form and a high purity, and can effectively inhibit battery deformation and zinc dendrite formation when added to a zinc-nickel battery as a negative electrode material of the battery. The preparation method is short in reaction time, does not require long-time aging, saves energy consumption, and has high labor productivity.

The invention belongs to the technical field of rubber sealing strip cutting and in particular relates to a cutting device for cutting a rubber sealing strip. The cutting device comprises a cutting bracket, a cutting assembly and a regularizing assembly. The cutting device has the advantages that the rubber sealing strip conveying efficiency is improved, the consistency between rubber sealing strip conveying and rubber sealing strip cutting is improved, the rubber sealing strip is regularized conveniently, and the rubber sealing strip cutting quality is improved.

The invention discloses an electric toothbrush with a music playing function. The electric toothbrush has the advantages that a music playing box is separated from a toothbrush handle, the music playing box can be fixed to a wall of a place where a user frequently brushes teeth, and the electric toothbrush can be connected to the music playing box in an inserted manner; the toothbrush is indirectly fixedly connected to the wall in an inserted manner, use convenience is achieved, and additional storage is not needed; the toothbrush is separated from the music playing box, so that the music playing box can be prevented being wetted by saliva, foam and tooth brushing water, use safety is achieved, the music playing box cannot be easily damaged due to the fact that water enters the music playing box, and long service life is achieved; the music playing box is separated from the toothbrush handle, so that the music playing box is not limited by the space of the toothbrush handle any more, the size of the music playing box can be set at will, the music playing box can have comprehensive components inside, the sound quality and functions of the music playing box can be improved, and the user can enjoy better sound quality.

The invention relates to a method for displaying boride in gamma-TiAl-based alloy, and belongs to the technical field of observation of internal organizational structures of materials. A TiAl alloy sample containing an element B is sequentially subjected to rough grinding and fine grinding by using different numbers of waterproof abrasive paper, and is cleaned and blow-dried after being polished to a mirror surface. A metallographic sample to be observed is connected with an anode, a pure titanium sheet is connected with a cathode, the product is immersed into a metallographic electrolytic corrosive agent for electrolytic corrosion, wherein the temperature of the electrolytic corrosive agent is room temperature, the electrolytic corrosion voltage is 15-35 V, and the electrolytic corrosion time is 10-20 s; and then cleaning and blow-drying are conducted. A red boride metallographic microstructure obviously different from a light red gamma-phase matrix can be observed by adopting a bright field image of a conventional optical metallographic microscope. According to the method, the problems that fine boride in the metallographic structure of the gamma-TiAl-based alloy cannot be distinguished and the shape and size are difficult to count are solved, scientific researchers can easily regulate and control the shape and size of the boride, and research and production of the gamma TiAl-based alloy and components of the gamma TiAl-based alloy are promoted.