2965 results about "Spray method" patented technology

A cold gas spraying method and device, whereby the sprayed particles are accelerated in a gas flow. A powder tube and an outer nozzle body together form a Laval nozzle that produces high gas flow velocities. The injection of the sprayed particles occurs in the divergent section of the Laval nozzle.

A biodegradable antithrombotic conjugate having heparin and other anti-thrombotic moieties are introduced as side chains to the polymer backbone modified by click chemistry. Various bioabsorbable monomers and dimers such as valerolactone may be used in the monomer derivation, homo- and co-polymerization, and the conjugation with a biologically active molecule by click chemistry. A coating comprising a biocompatible and bioabsorbable polymer anti-thrombotic conjugate is applied to at least a portion of an implantable device to prevent or reduce the formation of thrombosis on the surface of the implantable device. A first or sub-layer of the coating is prepared by mixing a polymeric material and a biologically active agent with a solvent, thereby forming a homogeneous solution. A second or outer layer comprising the present anti-thrombotic conjugate may be applied over the inner drug-containing layers using, for example, a dip coating or spray coating process.

The invention discloses a GPS-based unmanned aerial vehicle pesticide spraying device. The GPS-based unmanned aerial vehicle pesticide spraying device comprises a vehicle body, a pesticide storage box and a sprayer, and further comprises a central control module and a GPS signal receiver, wherein the pesticide storage box is installed on the vehicle body, the sprayer is connected with the pesticide storage box, the central control module stores an operation prescription map, and the GPS signal receiver determines the position of an unmanned aerial vehicle, and transmits a signal of the position of the unmanned aerial vehicle to the central control module. The central control module obtains pesticide spraying information at the position of the unmanned aerial vehicle according to the operation prescription map and controls the sprayer to conduct pesticide spraying. The invention further discloses a GPS-based unmanned aerial vehicle pesticide spraying method. According to the GPS-based unmanned aerial vehicle pesticide spraying device and method, the pesticide spraying amount can be changed according to different varieties, different densities and other parameters of crops inside the pesticide spraying area, so that waste of liquid pesticide is reduced, the pesticide spraying accuracy is improved, the disinsection effect can be ensured, the pesticide residues can be well reduced, and the quality of agricultural products is improved.

The invention discloses a refractory spray coating with high steel fiber content and a spraying method thereof, which belong to the technical field of refractory materials. The method comprises the following step of: 1, pneumatically conveying the refractory spray coating to a nozzle, adding water onto the nozzle, and spraying and bonding the coating on a wall; or 2, adding water or a liquid bonding agent into the refractory spray coating, stirring the mixture into mortar, conveying the mortar to the nozzle by a pumping method, spraying the mortar out of the nozzle by using high-pressure air,and bonding the mortar on the wall. The refractory spray coating comprises the following ingredients in part by weight: 30 to 80 parts of refractory aggregate, 30 to 50 parts of refractory powder, 5 to 20 parts of bonding agent, 0.5 to 15 parts of additive and 3 to 80 parts of steel fiber. The invention has the advantages that: by spraying the refractory spray coating on a blast furnace cooling wall, spraying on a blast furnace throat steel brick, spraying on various refractory linings with cold faces and hot faces and repairing, the service life of the refractory material for the inner wall of a blast furnace can be greatly prolonged, and the effects of protecting the environment, saving energy and reducing consumption are achieved.

The invention belongs to a biodegradation liquid mulching film and the preparation method thereof. The invention prepares polyvinyl alcohol into an aqueous solution with mass fraction of 5-10 percent; carboxymethyl cellulose is also prepared into an aqueous solution with mass fraction of 5-10 percent; starch with mass fraction of 5-10 percent is added into a reactor having an agitator, a condenser and a thermometer and is gelatinized for 30 minutes under 75-85 DEG C and then becomes transparent and slabby starch paste, the prepared polyvinyl alcohol solution and carboxymethyl cellulose solution are then added into the reactor, and surfactant and plasticizer are also added into the solution. The PH value is set as 2-4, cross-linking agent is then added, and the biodegradation liquid mulching film is obtained after 1-2-hour reaction under 85-90 DEG C. The film can be sprayed to the land surface through spray method after being thinned up.

The invention discloses spray gun locus optimization method of a spray robot on a complex curve surface, comprising: slicing the complex surface, considering each slice as a plane, designing locus of each slice by using plane spray gun locus optimization method; according to relative position relationship between two slices boundary and juncture locus, discussing juncture spray locus optimization according to different condition, optimizing the juncture locus by using spray locus subsection method; considering spray gun locus optimization composition problem as country mail carrier problem (ORPP), representing ORPP by using Hamiltonian graphic method, performing optimum combination of spray gun locus of each slice by using modified genetic algorithm, and realizing spray locus optimization on a large area curve surface. The invented method is provided with practicability, and is a robot auto spray method for workpieces with a surface of complex curve surface. By using the invented method, the work efficiency of the spray robot is improved, the spray quality is promised, and the paint is saved.

The invention provides a high strength organic / inorganic nano composite film layer materials and method for preparation, wherein the composition comprises 10-13% of titanate, 7-17% of silicane coupling agent, 0-6% of silicate ester, 40-65% of alcohol solvent and 1-4% of water. The preparation of the composition consists of using inorganic acid as catalyst, co-hydrolyzing titanate, silicate and silane coupling agent in dimethyl carbinol, coating the obtained paint by rotary, dipping or spraying methods onto the surface of the appliances, finally solidifying 1-3 hours at 135- 150 deg. C.

The invention provides an unmanned aerial vehicle spraying method, which comprises the steps of acquiring a flight path and the range to be sprayed of each operation object within the flight path; flying to each operation object in sequence according to the flight path; and carrying out spraying on the whole of the operation object according to the range to be sprayed. The unmanned aerial vehicle spraying method optimizes the spraying mode, pays attention to spraying requirements of each individual operation object, and carries out independent spraying in allusion to the whole of each operation object according to the range to be sprayed, thereby being capable of ensuring a spraying range to cover the range to be sprayed of each operation object, and meeting the spraying requirements of the operation objects. The method provided by the invention is particularly applicable to spraying operations for discretely planted large-scale tree seedlings.

The invention provides a bactericidal yield-increase medicine fertilizer and a use method thereof. The medicine fertilizer comprises a compound activating agent and compound micro-fertilizer, whereinthe mass ratio of the compound activating agent to the compound micro-fertilizer is 1-6:9; the compound activating agent comprises a photosynthesis promoter active component, a plant growth regulatoractive component and a bactericide active component; and the compound micro-fertilizer is an inorganic salt containing one or more elements of the trace elements of iron, manganese, zinc, copper, molybdenum, boron and rare earth. The use method of the medicine fertilizer comprises the following steps: firstly, diluting the medicine fertilizer into a medicine fertilizer preparation by blending withwater, then spraying by the foliage spray method no more then twice from booting period to grouting period. The medicine fertilizer has small cost, safety and environmental protection and can effectively kill bacteria and increase the yield of the crop, and the use method of the medicine fertilizer has simple and convenient operation and can farthest exert the application effect of the medicine fertilizer.

The invention relates to a crylic acid nucleocapsid polymer emulsion and subdividable emulsion powder and the preparation method thereof. The emulsion is prepared by methacrylic acid alkyl ester, crylic acid alkyl ester, hydroxyalkyl ester, methacrylic acid, N-methylol acrylamide, an emulsifying agent and an initiator through the method of emulsion polymerization. The subdividable emulsion powder is prepared by the crylic acid nucleocapsid polymer emulsion, a protective colloid, and an anticaking agent through the spray method of emulsion. The subdividable emulsion powder of the invention has high fixed content (approximating 100 percent) and can reduce the difficulty of transportation and storage, and can be packed by using paper to reduce the packing cost, moreover, the storage stability is good and the storage period is long, and the subdividable emulsion powder of the invention can not go bad due to the water freezing or volatilization; the invention has the important thing that the subdividable emulsion powder can be rapidly dissolved in water and evenly distributed to repeatedly form the emulsion having the same performance as the primary matrix polymer emulsion, thereby being widely applied to zero VOC dry powder paint, terrace patch mortar, artesian flow flat plateau mortar, wall and floor tile bonding agent, sealed mortar, construction luting powder, plastering material, plastering gypsum, heat insulation and heated board bonding material, concrete interface agent, powder binding agent, powder paint, etc.

The invention relates to a protective coating for aerogenerator vanes and a preparation method thereof, wherein the protective coating has the advantages of excellent ultraviolet radiation resistance, abrasion resistance, stain resistance, corrosion resistance, adhesive force and flexibility. The preparation method uses hydroxyl acrylate resin as a base material of the surface protective coating for the aerogenerator vanes and uses the mixture of HDI biuret and HDI tripolymer as a curing agent. The coating consists of a component A and a component B, wherein the component A comprises the following materials in portion by weight: 10 to 55 portions of the hydroxyl acrylate resin, 1 to 5 portions of abrasion resistant and stain resistant auxiliary agent, 0.2 to 0.4 portion of ultraviolet stabilizer, 10 to 15 portions of environment-friendly organic solvent, 15 to 20 portions of pigments and fillers, 2 to 5 portions of delustering agent, 0.15 to 0.55 portion of dispersing agent, 0.01 to 0.3 portion of drying agent, and 0.25 to 0.55 portion of levelling agent; the component B comprises 1 to 15 portions of the HDI biuret and 1 to 15 portions of the HDI tripolymer; and the mass ratio of the component A to the component B is 2-6:1. When in use, the components A and B are mixed and stirred evenly in proportion, and then the mixture is adjusted to proper viscosity for construction by using a spraying method.

The invention discloses a liquid preparation with good sterilizing and disinfecting effects and the combination of vinegar and air-disinfecting traditional Chinese medicines, which comprises the following main ingredients: water extract or active ingredients of one or more air-disinfecting traditional Chinese medicines and vinegar. The composition of the liquid preparation has the functions of cleaning, removing evil, breaking filthiness and detoxifying; the liquid preparation prepared by the composition can effectively kill a plurality of bacteria in air by adopting a heating fumigation method, a spraying method, and the like, has remarkable improved disinfecting and sterilizing effects than the methods for disinfecting air by singly using liquid preparations without vinegar and singly using vinegar, and is easier to be accepted by people as the smell of the preparation can be changed after vinegar is added.

An antimicrobial perfume compositions that contain a perfume ingredient having antimicrobial activity of at least 80% as measured by the "agar surface coating test," the "vapor phase test," or by the "direct spray method." The active ingredient is grapefruit-pip, a fumitory extract, a fumaric acid or an ester of fumaric acid or lactic acid.

A super hydrophobic coating composition that is a highly durable super hydrophobic transparent coating for glass, metal, and plastic, and automobile painted surfaces that is manually dispensable and may be easily applied to many substrates is provided. Moreover, the inventive super hydrophobic coating is user friendly as coating takes place at room temperature, and can be applied by a normal hand spray method. Embodiments of the coating dry within 30 minutes, and generate a super hydrophobic effect for ready use. The coating is useful to repel water droplets, dew drops, and dust particles in various applications such as solar panels, wind turbines surfaces, house hold components, metal coated furniture, marine equipment parts, marine sports equipment like speed boat screens, automobile wind shields, automobile plastic components, auto bodies and aerospace applications.

The invention relates to a transparent super-hydrophobic nano-coating and a spraying and preparation method thereof. In the method, firstly, acetone is taken as solvent to respectively prepare a hydrophilic or hydrophobic gas phase silicon dioxide nano-particle solution with the concentration of 5 to 20 mg/mL, and a silicone rubber prepolymer solution with the concentration of 2 to 10 mg/mL; after ultrasonic dispersion, the two solutions are intensively mixed in an isopyknic manner, then ultrasonic dispersion is performed to obtain an organic and inorganic hybridization emulsion; afterwards, deionized water is added, and the volume ratio of the added deionized water to the emulsion is 1:(1-9), and then ultrasonic dispersion is performed again to obtain spraying suspending liquid; a spray rod or a spray pen is adopted for spraying according to the size of a spraying area; the spraying pressure is 10-80 psi; a transparent super-hydrophobic surface can be obtained after criss-cross spraying and curing. The invention has the advantages that the preparation technology of the coating is simple, the spraying method is simple and convenient, no damage is caused to a base material, the transparency is high, the water pressure resistance, the impact resistance, the chemical stability and the environment durability are relatively good, and the method is suitable for mass production.

The invention discloses a method for preparing an active electrode material of a lithium ion battery. The method comprises the following steps of: preparing a nano-crystal with electrochemical activity into an aqueous solution, and adding a carbon source and a surface active agent into the aqueous solution to form a uniform and stable mixture solution; and preparing the mixture solution into spherical particles under the condition that the temperature is between 200 and 900 DEG C through a spray granulation method, and performing heat treatment on the spherical particles in 400-900 DEG nitrogen gas so as to form the active electrode material of the lithium ion battery. Conductive networks are distributed in the active electrode material, and the active electrode material has a porous structure, so that the active electrode material has good lithium ion and electron transmission channels; and the lithium ion battery prepared from the active electrode material has high specific capacity, high-current charging and discharging and high cyclical stability. The method for preparing the electrode material of the lithium ion battery through a spraying method can be easily applied to mass production, and is generally used for preparing various high-performance electrode materials of the lithium ion battery.

The invention provides a filter element for filtering high-temperature dust and purifying gas as well as a preparation method and application thereof, wherein the filter element comprises a support body and a filtering membrane which covers the surface of the support body; a denitrification catalyst is loaded in a pore space of the support body; and the filter element can be prepared by preparingthe support body first, preparing the filtering membrane on the support body by adopting a spraying method and finally loading the denitrification catalyst in the pore space of the support body by using an impregnating method. The filter element is combined into a filter element assembly and then arranged in a filter container which can be used for filtering the high-temperature dust and purifying the gas in the fields of thermal power, refuse incineration, ferrous metallurgy or petroleum chemical industry. The filter element overcomes the defects that the ceramic filtering membranes have lowbreak strength, poor heat shock resistance and higher assembly difficulty and more difficult high-temperature sealing connection of a membrane pipe and can remarkably improve the filter efficiency and the filter precision and prolong the service life.

The invention belongs to the field of thermal spraying and particularly relates to a composite amorphous and nano-crystalline coating layer with ceramic phase and ferrum base and a preparation method thereof. Carbide or oxide ceramics of Co or Ni ladles are firstly added into a flux core, a flux-cored wire is prepared together with the flux core and a ferrum-base alloy with amorphous ingredients and used as a spraying material, and the electric arc spraying method is adopted for leading the flux-cored wire to be melted, atomized into fused drops and finally deposited on a substrate, thus preparing the composite amorphous and nano-crystalline coating layer with ceramic-phase structure and ferrum base, which has the performance of high bond strength, good wear resistance, corrosion resistance and oxidation resistance as well as remarkably prolonged service life of the substrate, and the composite amorphous and nano-crystalline coating layer with ceramic phase and ferrum base can be widely applied to the restoration and the protection of device parts in the fields of metallurgy, electric power and petroleum, etc.

The invention relates to the technical field of crop liquid medicine spraying, and discloses a self-walking variable-quantity liquid medicine spraying device and a liquid medicine spraying method for a grapery. The liquid medicine spraying device includes a walking machine body, as well as a hydraulic system, a liquid medicine box, a gate-type spray bar, a GPS receiver and a control system which are installed on the walking machine body respectively; locating information character strings of a satellite are sent by the GPS receiver to the control system through a serial port; collected position signals, speed signals and flow signals are respectively sent to the control system through a position sensor, a speed sensor and a flow sensor; and the received signals are converted to control signals by the control system, and the control signals are transmitted to the hydraulic system so as to control the steering and walking path of a steering mechanism. The self-walking variable-quantity liquid medicine spraying device and the liquid medicine spraying method provided by the invention have the advantages that unmanned self-walking variable-quantity liquid medicine spraying is realized, the automation degree of the liquid medicine device of the grapery is improved, the influence of manual factors is reduced, the uniformity and stability of spraying are excellent, night operation can be realized, and the walking trace going forward as per the set trace is guaranteed.

On substrate of electrode made from organic insulating material, conducting material is printed through spraying method so as to form working electrode and basal body, and a layer of polycarbonate insulator is coated on surfaces of intermediate part between them. Lower part of basal body of working electrode is coated a conversion zone formed through integrated application including techniques of high polymer built up film or ferrocene covering, embedding enzyme, nano technique, and diffusing astriction so as to fabricate biologic enzyme electrode. The invention raises each performance of biologic sensor and practicability integrally.

A method is described herein for coating the substrate of a component for use in a water cooled nuclear reactor to provide a barrier against corrosion. The method includes providing a zirconium alloy substrate; and coating the substrate with particles selected from the group consisting of metal oxides, metal nitrides, FeCrAl, FeCrAlY, and high entropy alloys. Depending on the metal alloy chosen for the coating material, a cold spray or a plasma arc spray process may be employed for depositing various particles onto the substrate. An interlayer of a different material, such as a Mo, Nb, Ta, or W transition metal or a high entropy alloy, may be positioned in between the Zr-alloy substrate and corrosion barrier layer.

The invention relates to a strengthening coating of the surface of an annealing furnace roller and a preparation method thereof. The preparation of the strengthening coating on the surface of a roller base is performed by a selected hot-spray method. The strengthening coating comprises a bonded coating, a working coating and a transition coating between the bonded coating and the working coating. The proportion of alloy and ceramic in every coating is changed according to gradient, which means that the proportion of alloy is decreased gradually from inner to outer in every coating; while the proportion of ceramic is increased gradually and at last a gradient coating is formed. The invention not only ensures the working coating to have good antioxidation, abrasion resisting and anti- nodulation performances, but also improves the binding performance of strengthening coating and the roller base and improves the cohesion binding performance of the coating inner. Under the function of the strengthening coating of the annealing furnace roller surface made by the method of the invention, the service life of the furnace roller can be prolonged and the using cost and repairing cost can be decreased.

The invention discloses an automatic spraying system of a sole bonding agent and a spraying method thereof. A spray gun and a glue accommodating container are arranged at the tail end of a mechanical arm, the spray gun and the glue accommodating container are arranged on the inner and outer sides of a sole top surface contour side line in a corresponding form manner, sole top surface scanning data and sole position data read by a computer are matched to enable the spray gun to spray the bonding agent on the inner side of the sole contour side line and enable the bonding agent to slightly exceed the sole contour side line, then the bonding agent is sprayed in the spraying area of the sole top surface, the bonding agent exceeding the contour side line is enabled to drop into the glue accommodating container, so that automatic accurate sizing on the sole top surface is achieved, the strength of a connecting structure of the sole and an upper is guaranteed, and simultaneously, the bonding agent is prevented from polluting the sole appearance.