2970 results about "Spray method" patented technology

The invention relates to an inorganic / organic nano-composite antibacterial and application of fiber product thereof. 0.01-20 proportions of inorganic antibacterial, 0.01-35 proportions of organic antibacterial, 0.0001-0.4 proportion of inorganic / organic antibacterial compatibility finishing agent, 0.05-40 proportions of macromolecule bond, 0.0001-0.4 proportion of stabilizer that prevents color change of the inorganic antibacterial, 0.1-30 proportions of high efficiency emulsifying agent and 100 proportions of distilled water are added in sequence by weight proportion, wetted, dispersed, ground, dispersed at high-speed, stirred, etc., so as to acquire the nano-composite antibacterial. The antibacterial can process the fiber product by a dip-dye method, a roll-dye method, a spray method, etc. Dresses, socks and socks, blankets, beddings, gowns, patient wears, masks, medicinal gauzes, air filtering nettings, etc., made from the inorganic / organic nano-composite antibacterial of the invention are characterized by high antibacterial efficiency, rapid antibacterial function, long lasting antibacterial performance, laundering durability, etc., and the inorganic / organic nano-composite antibacterial of the invention is applicable to life, medical care, etc., and has the functions of preventing the occurrence and transmission of diseases, protecting the health of people and improving life quality.

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.

The invention, which relates to the technical field of the unmanned plane, discloses a spraying method of an unmanned plane and an unmanned plane. With the method and the unmanned plane, liquid pesticide can be sprayed uniformly in farmland at a target working area. According to the specific scheme, the method comprises: obtaining an image of a target working area and carrying out image segmentation to obtain a coordinate of an edge pixel of an image corresponding to a to-be-sprayed area; obtaining an actual flight height of the unmanned plane relative to the ground when collecting the image corresponding to the to-be-sprayed area by the unmanned plane at a constant height relative to a horizontal plane; according to the coordinate of the edge pixel, a shooting focus, and the actual flight height, calculating an actual navigation coordinate corresponding to the edge point of the to-be-sprayed area; and planning a navigation route based on the actual navigation coordinate and spraying liquid pesticide on operated objects at the to-be-sprayed area according to the navigation route. The method can be applied to the liquid pesticide spraying process by the unmanned plane.

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 relates to the technical field of unmanned aerial vehicles, and provides an unmanned aerial vehicle pesticide spraying method and system. The unmanned aerial vehicle pesticide spraying method comprises the following steps: (1) acquiring crop images of a working area, and comparing the crop images with crop images stored in a databank I in advance so as to confirm types of crops; (2) acquiring crop images of the working area, and comparing the crop images with insect images stored in a databank II in advance so as to confirm types of insects; (3) confirming types of insecticides to be sprayed according to the types of the crops and the types of the insects; (4) confirming the serious degree of crop insects, preparing insecticides of proper concentration according to the types of the insecticides and the serious degree of the crop insects, and spraying the insecticides. As the insecticides are automatically specifically sprayed according to the types of the crops and the crop insects, the insecticide spraying effects and the utilization rates of the insecticides can be improved, insecticide waste can be avoided, the cost can be reduced, and the intelligence and automation levels of the insecticide spraying process are increased.

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 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.

The invention discloses a preparation method of a composite heat conduction graphene membrane and the composite heat conduction graphene film. The preparation method comprises the following steps: S1, putting crystalline flake graphite or graphite powder into a mixed solution of concentrated sulfuric acid, potassium persulfate and phosphorus pentoxide, soaking for a day and a night, then carrying out suction filtration, drying, and carrying out pre-oxidizing; S2, oxidizing pre-oxidized graphite further by adopting a Hummers method, that is, oxidizing fully in concentrated sulfuric acid and potassium permanganate, then adding deionized water for diluting, and carrying out repeated washing and suction filtration, so as to obtain an oxidized graphene aqueous solution; S3, spraying the oxidized graphene aqueous solution on a substrate by adopting a thermal spray method, and depositing, so as to obtain an oxidized graphene film; S4, reducing the oxidized graphene film, so as to obtain the graphene film; and S5, laminating the graphene film, so as to obtain the composite heat conduction graphene film. Compared with the prior art, the preparation method is simple, the cost is low, and the prepared composite heat conduction graphene film has a favorable heat conduction performance.

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 discloses graphene aerogel microspheres and a preparation method and application thereof. The preparation method is characterized in that 1, graphite oxide is prepared; 2, graphene oxide aqueous dispersion is prepared; 3, the graphene oxide aqueous dispersion is atomized through a spraying method into graphene oxide liquid drop microspheres, and meanwhile the microspheres are collected through receiving liquid in a cooling bath; 4, the receiving liquid is filtered to obtain graphene oxide ice microspheres, and then freeze drying is performed on the microspheres to obtain graphene oxide aerogel microspheres; 5, the graphene oxide aerogel microspheres are subjected to thermal reduction to obtain the graphene aerogel microspheres. The preparation method is simple and convenient to implement, no environmental pollution is generated, and the obtained graphene aerogel microspheres are uniform in size and large in specific area, are of a stable center-divergence multi-porous-channel network structure and are used for adsorbing environmental pollutants.

A method for spraying an aqueous liquid into the air intake duct (2) of a turbocharged piston engine (1) for humidifying the intake air to reduce nitrogen oxide emissions. In a first stage in the method, the intake air is heated by a heat exchanger element (5′) before the turbocharger and water mist is injected into the air intake duct after the first heading stage through at lea one first nozzle (9, 10), and in a second stage the intake air is compressed by the turbocharger (4), causing its temperature to rise, and water mist is injected into the air intake duct through at least one second nozzle (12, 13) after the second stage.

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.

The invention discloses a spraying method for a plant protection unmanned aerial vehicle (UAV). The spraying method includes a method in which an aircraft body carries a spray unit, flies to a designated area and spraying a soup downward, and also comprises executing steps of a flight route of the aircraft body which are an S1 step of dividing the designated area into at least one rectangular area; an S2 step of performing spiral rotation flight along the surrounding of one rectangular area, with an interval of adjacent flight paths as the spraying radius; and an S3 step of stopping spraying the soup after the aircraft body flies to the central portion of the rectangular area, or flying straightly toward a closest side of the rectangular area to another rectangular area. The invention is capable of reducing the turning of the aircraft body and reducing the loss.