941 results about "Wire mesh" patented technology

The invention discloses a high-strength composite pipe manufacturing method, and relates to the technical field of composite pipe production, and the method comprises the following steps: S1, inner ring welding: arranging and guiding inner ring reinforcing warps through a front end winding welding seat, and welding inner ring spiral wefts to the outer sides of the inner ring reinforcing warps through electric sparks, s2, mesh belt winding: wrapping a middle-layer steel wire mesh belt on the outer side of an inner-ring spiral weft through a middle-layer mesh belt winding welding seat, welding the middle-layer steel wire mesh belt on the outer side of the inner-ring spiral weft through electric sparks, and winding the middle-layer steel wire mesh belt on the outer side of the inner-ring spiral weft through a middle-layer steel wire mesh belt winding welding seat; the operation stability of production equipment is improved, the convenience of replacement and adjustment of the mesh belt storage roller is effectively improved, a mesh framework is formed by continuous online welding of warp-direction steel wires and inner and outer weft-direction steel wires, and the mesh framework and steel-plastic formed by one-time co-extrusion composite molding of polyethylene plastic penetrate through each other in a three-dimensional mode and are embedded with each other to jointly bear the working load.

A silicon wafer processing device (100) and system (200). The silicon wafer processing device comprises a plurality of main rollers (10) arranged in sequence and cutting wires (20) wound around the periphery of the main rollers (10), wherein the cutting wires (20) form a wire mesh between the main rollers (10), and the wire mesh comprises a plurality of wiring areas arranged in sequence in the axial direction of the main rollers (10); the main rollers (10) are each provided with a plurality of wire grooves for winding the cutting wires (20); the plurality of wiring areas comprise a first area (a1) and a second area (a2), with the wiring spacing of the cutting wires (20) in the second area (a2) being greater than that of the cutting wires (20) in the first area (a1); thus, the increase in a wire bow and the limitation of a cutting force caused by lateral force concentration are reduced, and for the cutting wires (20) at the head of the first area (a1), the problems of wire overlapping and wire breakage between same and the adjacent cutting wires (20) can be effectively avoided.

The utility model discloses a solar photovoltaic cell gradual change staggered grid printing screen which comprises a printing plate frame and a printing screen body, the printing screen body is stretched on the printing plate frame through a stretching wire mesh, a plurality of fine grid line grooves and main grid line grooves are formed in the printing screen body, the fine grid line grooves and the main grid line grooves are communicated in a crossed mode, and the fine grid line grooves are communicated with the main grid line grooves. Two sides of each main grid line groove are respectively provided with a plurality of fine grid line grooves in a staggered manner; the main grid line groove is narrowed from the middle to the two ends, and the narrowing angle alpha of the main grid line groove is 3-6 degrees; the width of the tensioning wire mesh between one side edge of the printing screen and the printing plate frame is L1, the width of the tensioning wire mesh between the other side edge of the printing screen and the printing plate frame is L2, and L1 is equal to (1.5-2.5) L2. The fine grid line grooves on one side of the main grid line grooves are correspondingly located between the two adjacent fine grid line grooves on the other side of the main grid line grooves, and the two groove edges of the main grid line grooves are symmetrically located on the two sides of the groove center line. According to the staggered grid printing screen, the tensioning force of the printing plate can be balanced, and the production cost of solar photovoltaic cells can be reduced.

Valve positioning structures for use in a prosthetic heart valve delivery apparatus and associated methods. The delivery apparatus can include a balloon coupled to a distal end portion of a shaft and a valve positioning structure can be disposed around the balloon, and a prosthetic heart valve can be crimped around the balloon and the valve positioning structure. The valve positioning structure can include a support structure, such as a frame or a braided wire mesh, which can be coated with a polymeric coating to protect the balloon and the prosthetic valve. In some examples, the polymeric coating is an open-cell polymeric coating. In some examples, the polymeric coating is a closed-cell polymeric coating. In some examples, a webbing portion of the closed-cell polymeric coating spanning across the cells of the support structure can be formed while the support structure is in an at least partially expanded state.

This invention discloses a method and sensor for adiponectin detection using a polyaniline and polyacrylic acid-modified wire mesh carbon electrode, relating to the field of adiponectin detection technology. The method involves electrochemically activating the wire mesh carbon electrode, electropolymerizing it to form a polyaniline-polyacrylic acid composite modification layer, immobilizing adiponectin monoclonal antibody after activation with N-hydroxysuccinimide and 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide, blocking the antibody with bovine serum albumin, and reacting it with a serum sample. The adiponectin concentration is determined based on the peak potential shift and peak current change. This invention simultaneously achieves both conductive transport and antibody immobilization, reduces non-specific adsorption and serum interference, and improves detection sensitivity, repeatability, and quantitative accuracy.

The invention belongs to the field of neodymium-iron-boron material processing, and particularly relates to a neodymium-iron-boron product wire-withdrawing-free cutting device and method. The device comprises a base, the base is connected with a multi-wire cutting machine, at least one grooved wheel set is arranged on the side face of the multi-wire cutting machine, a sliding module is installed on the base, the sliding module is connected with a lower fixing plate and drives the lower fixing plate to move, and a pressing mechanism is arranged above the lower fixing plate. The end of the pressing mechanism is connected with an upper pressing tool, and the end of the lower fixing plate is connected with a lower pressing tool. The wire net composed of the diamond wires on the surface of the grooved wheel set is arranged on the side face of the multi-wire cutting machine, after material cutting is completed, the cutting device can directly fall into a discharging platform after being loosened, the diamond wires do not need to retreat from cut wire seams, wire breakage possibly caused by wire retreating is eliminated, and automatic circulating reciprocating cutting can be achieved.

The invention relates to a container exchange station for transporting empty and loaded, open-topped or openable containers or wire mesh boxes, for transporting bulk goods, preferably for use in battery production and bodywork manufacturing in the automotive industry. It demonstrates how a container exchange station can be created with relatively little space and a small number of motor drives.

The utility model discloses a building horizontal reserved hole steel wire safety net fixing device. A connecting mechanism is arranged at the bottom of a supporting rail. A plurality of supporting shafts are arranged in the supporting track, gears or supporting wheels are installed on the supporting shafts, the gears and the supporting wheels are arranged in an area formed by the main chain, and the gears are meshed with the main chain. A guide beam is installed at the top of the supporting track and forms a hook, an auxiliary chain is fixed to the top of the guide beam, a controller and a driver are installed at the top of the supporting track, the controller is meshed with the main chain, and the driver is meshed with the main chain and the auxiliary chain at the same time. The device slides along the supporting track through the connecting mechanism, the device can be conveniently installed at the positions of structural beams at different positions and fixed, the main chain is rotationally transmitted to the auxiliary chain through the controller and the driver, so that the guide beam moves, the large-size reserved hole steel wire mesh is dragged and fixed through connection of the hook and the steel wire mesh, and operation is convenient. Labor expenditure is reduced, and safety guarantee measures are provided for installation.

The utility model discloses a greening side slope structure based on hanging net spray-seeding, and relates to the technical field of side slope greening. Comprising the steps that a bottom net is attached to a slope; the side nets are connected end to end, the side nets are perpendicular to the bottom net, and the side nets surround the edge of the bottom net and are fixedly connected with the bottom net; the multiple anchor rods penetrate through the bottom net and the side net, and one end of each anchor rod is inserted into the side slope. By arranging the bottom net and the side net, a three-dimensional net can be formed, the spray-seeding thickness can be increased, soil dressing is stable, soil can be effectively fixed on the rock surface, it is guaranteed that the soil is at the effective depth, the greening effect is good, the vegetation survival rate is high, and the water retention and soil holding capacity is high.

The utility model discloses a wire mesh demister, and relates to the field of demisters, the wire mesh demister comprises a mounting mechanism and a filter screen pad mounted in the mounting mechanism, the mounting mechanism comprises an upper mounting rack and a lower mounting rack, and four symmetrically arranged pull rods are mounted on the outer wall of the bottom of the upper mounting rack; two symmetrically-arranged mounting openings are formed in the outer wall of the top of the lower mounting frame, mounting assemblies are mounted on the inner walls of the two mounting openings, the filter screen pad is located between the upper mounting frame and the lower mounting frame, and the pull rod penetrates through the filter screen pad. Through the arrangement of the mounting mechanism, the filter screen pad is conveniently fixed, meanwhile, the two mounting assemblies in the mounting mechanism are conveniently matched with the pull rod to adjust the distance between the two mounting frames, the filter screen pad is conveniently pressed by adjusting the distance between the two mounting frames, and therefore it is avoided that a large gap exists between the mounting frames and the filter screen pad.

This invention discloses a method and system for reinforcing old buildings in urban renewal, comprising the following steps: comprehensive diagnosis and performance evaluation of the old building; decision-making on the structural reinforcement system based on the performance evaluation results to obtain the optimal structural reinforcement system; reinforcement of key components and nodes of the old building according to the optimal structural reinforcement system; predictive maintenance of the reinforced old building through collaborative improvement and real-time monitoring; integration of three-dimensional laser scanning, finite element analysis, and various material performance testing technologies to accurately assess the current state of the building; and the use of high-performance composite mortar wire mesh, carbon fiber cloth, and buckling restraint braces to enhance the structural bearing capacity and seismic toughness. Simultaneously, combined with integrated structural-insulation design and long-term health monitoring, this method enhances safety while also considering energy conservation, environmental protection, and historical preservation, exhibiting significant advantages such as data-driven approach, toughness priority, functional synergy, and intelligent operation and maintenance. This invention is rationally designed, compact in structure, and easy to use.

Rotary drum filtering machine and method for filtration of harvested algae. A filtering drum, axially rotatable horizontally, includes a filtration basket with thermally coupled mesh netting for retaining algae and passing through liquid when filtering drum is rotated. Feeding liquid containing algae is fed into filtering drum via inlet pipe. Filtered algae retained on internal surface of filtration basket is scraped and collected, and removed through outlet pipe. Filtration basket is axially embedded and releasably secured to a support frame. Mesh netting is thermally pressed into filtration basket such that filtration basket polymer material penetrates through mesh netting apertures, and polymeric rod thermally pressed onto mesh netting fuses to filtration basket polymer material with mesh netting contained therebetween. Mesh netting includes wired mesh with wire diameter less than 1,000 pm and micron sized apertures having aperture diameter of 1 pm-500 pm to enable filtration of micron sized algae.

1. Name of the product in this design: Corner Protector (Wall Corner Wire Mesh 1). 2. Purpose of this design: This design is used for leveling building corners to ensure the straightness of the corners. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the key design points: Design 1 3D view. 5. Design 1 is designated as the basic design.

The utility model relates to the technical field of mold production, in particular to a recovery device which comprises an operation table, the bottom end of the operation table is fixedly connected with a conveying device, the conveying device comprises a supporting frame, one end of the supporting frame is rotationally connected with a driving roller, the surface of the driving roller is connected with a steel wire mesh conveying belt in a winding mode, and the middle of the supporting frame is slidably connected with a water gathering groove. One side of the water collecting tank is fixedly connected with a water outlet; the crushing device comprises a box body, the top end of the box body is fixedly connected with a feeding hopper, one side of the interior of the feeding hopper is rotationally connected with a first crushing wheel, and the other side of the interior of the feeding hopper is rotationally connected with a second crushing wheel. During use, waste and cooling liquid fall on the surface of the steel wire mesh conveying belt through the discharging port, the waste is conveyed into the crushing device through the steel wire mesh conveying belt to be crushed, the cooling liquid falls into the water collecting tank through gaps in the surface of the steel wire mesh conveying belt to be collected, and therefore the solid-liquid separation effect is achieved.

The invention relates to a wire mesh (10a; 10b; 10c), in particular a safety net, comprising multiple coils (12a, 14a; 12b; 12c) which are braided into one another and at least one coil (12a; 12b; 12c) of which is made of at least one individual wire, a wire bundle, a wire strand, a wire rope, and / or another longitudinal element (16a; 16b; 16c) with at least one wire (18a; 18b; 18c) and comprises at least one first limb (20a; 20b; 20c), at least one second limb (22a; 22b; 22c), and at least one bending point (24a; 24b; 24c) that connects the first limb (20a; 20b; 20c) and the second limb (22a; 22b; 22c). The first limb (20a; 20b; 20c) runs at least at a first inclination angle (26a; 26b; 26c) with respect to a longitudinal direction (28a; 28b; 28c) of the coil (12a; 12b; 12c) when viewed in a frontal direction perpendicularly to a main extension plane of the coil (12a; 12b; 12c). When viewed in a transverse direction parallel to the main extension plane of the coil (12a; 12b; 12c) and perpendicularly to the longitudinal direction (28; 28b; 28c) of the coil (12a; 12b; 12c), the bending point (24a; 24b; 24c) runs at least in some sections at a second inclination angle (30a; 30b; 30c) relative to the longitudinal direction (28a; 28b; 28c) of the coil (12a; 12b; 12c), said second inclination angle differing from the first inclination angle (26a; 26b; 26c).

A drift elimination system for evaporative heat rejection equipment. The drift elimination system includes a first and second set of electrodes positioned apart from one-another in the air flow downstream of the fill and spray system. The first set of electrodes, optionally in the form of needles or thin plates are energized with a positive or negative charge. The second set of electrodes, optionally in the form of wavy plates or a wire mesh are energized with the opposite charge. Water droplets passing over or through the first set of electrodes accept a charge from the first set of electrodes and are attracted to the second set of electrodes where they are collected, removing the charged droplets from the airflow, reducing water loss and abating plume formation.

The invention discloses a fan adopting reusable silencing materials, which comprises the silencing materials arranged at an air inlet and an air outlet, and the silencing materials are metal wire meshes. The silencing material of the fan can be directly flushed through water flow after certain dust and sundries are accumulated, can be flushed through water flow after being taken out of the fan and can also be directly flushed without being taken out, cleaning is convenient, the fan can be repeatedly used for a long time, and the use cost of the fan is effectively saved.

The application discloses a condensation heat exchange reinforcing structure for a spacecraft humidity control system water collecting inlet and a preparation method thereof. The condensation heat exchange reinforcing structure comprises a metal sheet base and a metal wire mesh. A single needle fin array is formed on the surface of the metal sheet base. The single needle fin has a circular arc top. The metal wire mesh is formed by interweaving warp and weft threads and is fixed at multiple points on the outside of the single needle fin array. The metal wire mesh is in contact with the top and side wall of each single needle fin. The condensation heat exchange reinforcing structure is fixed at the end of an air side channel and the water collecting inlet area. A water collecting cavity with a suction hole is arranged below the water collecting inlet area. The single needle fin array-wire mesh structure promotes the nucleation and coalescence of liquid droplets and directs them to the suction hole and the water collecting cavity. Meanwhile, the single needle fin array increases the effective heat exchange area, strengthens the turbulence and improves the condensation heat exchange performance.

The invention relates to the technical field of composite rock wool boards, in particular to a flame-retardant fire-resistant composite rock wool board and a manufacturing and processing method thereof.The processing method includes the steps that 1, rock wool board raw materials are divided into two batches, and one batch of rock wool boards are placed into a modification device; 2, an opening is formed in the outer side of the rock wool board through a modification device; 3, adding a water absorbent into the opening of the rock wool board; 4, glue is smeared on the inner sides of the two batches of rock wool boards; 5, steel wire meshes are placed on the inner sides of the two batches of rock wool boards; 6, the two batches of rock wool boards are bonded with the steel wire mesh, and manufacturing of the composite rock wool board is completed; the modification device comprises a base, a driving shaft is rotationally connected to the base, driving wheels are fixedly connected to the two ends of the driving shaft, a forming belt is nested on the outer sides of the driving wheels, and a plurality of forming cutters are fixedly connected to the outer side of the forming belt; the rock wool board comprises a water absorption layer, a plurality of cross-shaped openings are formed in the outer side of the water absorption layer, the cross-shaped openings are filled with water absorption agents, a supporting layer is bonded to the inner side of the water absorption layer, and the composite rock wool board with the moisture absorption function has the beneficial effect that the composite rock wool board with the moisture absorption function can be manufactured.

The utility model discloses steel wire mesh framework production equipment which is used for producing a tubular steel wire mesh framework, and the tubular steel wire mesh framework is formed by winding at least one weft on the periphery of a plurality of warps. The steel wire mesh framework production equipment comprises a weaving mechanism, the weaving mechanism comprises an equipment body and a wire winding component, a plurality of wire penetrating channels are formed in the equipment body at intervals in the circumferential direction of an axis, each wire penetrating channel is used for allowing a warp to penetrate through, and the equipment body is provided with a starting end and a tail end. The winding component comprises a driving component, a mounting component, at least one group of unwinding component and a welding component, the unwinding component comprises an unwinding roller, the mounting component is mounted on the equipment main body in a manner of rotating around an axis, the driving component is used for driving the mounting component to rotate around the axis, and a weft yarn coil is mounted on the unwinding roller in a manner of being unwound; and the weft yarns unwound from the weft yarn coil are spirally wound on the peripheral sides of the warp yarns extending out of the yarn penetrating channel. The welding part is used for welding the warp and weft wires, so that rigid connection is formed between the warp wires and the weft wires.

The utility model discloses a wire feeding positioning mechanism of a mesh welding machine. The wire feeding positioning mechanism comprises a wire feeding positioning device, the wire feeding positioning device is composed of a workbench and a leveling mechanism, a plurality of sets of first wire feeding mechanisms, second wire feeding mechanisms and third wire feeding mechanisms are arranged on the upper side of the workbench, and lifting mechanisms are installed at the bottom ends of the first wire feeding mechanisms, the bottom ends of the second wire feeding mechanisms and the bottom ends of the third wire feeding mechanisms correspondingly. The lifting mechanism is composed of a telescopic rod, a top plate and a guide rod, the bottom end of the guide rod is installed on the upper side of the top plate, and the bottom end of the top plate is installed at the bottom end of the telescopic rod. In the wire feeding process, the first wire feeding mechanism, the second wire feeding mechanism and the third wire feeding mechanism are selected according to the number of welding steel wires, and after determination, the lifting mechanism drives the first wire feeding mechanism, the second wire feeding mechanism or the third wire feeding mechanism to move upwards; and the steel wire is limited through the first wire feeding mechanism, the second wire feeding mechanism or the third wire feeding mechanism.

The application discloses a dichloromethane recovery device and method in a lithium battery diaphragm production process, and belongs to the technical field of lithium battery diaphragm production. The application comprises a box body and a fan arranged at the inlet of the box body, a condenser and a heater are arranged in the box body, and a liquid collecting groove is arranged at the bottom of the box body. The condenser is arranged in multiple groups along the flow direction of dichloromethane, and baffles are arranged between adjacent condensers, the baffles are arranged in an upper and lower staggered mode in sequence, and a wire mesh demister is arranged above the liquid collecting groove. The dichloromethane recovery device of the application is used for the dichloromethane discharged from a drying box, the dichloromethane is first condensed by the condenser and then flows into the liquid collecting groove, the dichloromethane which is not condensed is heated by the heater and then returned to the drying box, the utilization rate of dichloromethane is improved, the concentration of dichloromethane is reduced, and the treatment cost is reduced.

The hydrophilic and lipophilic oil-water separation metal mesh is woven by titanium wires, the mesh aperture is 80-300 meshes, the diameter of the titanium wire is 80-300 microns, the surface of the titanium wire has a porous nanometer film with a thickness of 10-30 microns, the porous nanometer film is a porous structure with a pore size of 5-25 microns constructed by titanium nanowires, and the diameter of the titanium nanowire is 40-80 nm. The mechanism of the metal mesh for oil-water separation is that the titanium wire mesh soaked in an alkaline solution at high temperature can quickly form a water film when encountering water, and the oil will float on the surface of the water film. The water film allows water to continue to pass through the mesh holes of the titanium metal mesh, but can block the passage of oil liquids, thereby realizing the rapid separation function of oil and water. The metal mesh can realize rapid and efficient separation of oil and water, is low-carbon and environmentally friendly, the preparation method is simple and easy to operate, the preparation cost is low, and the mass efficient construction and preparation of the oil-water separation metal mesh can be realized.

The invention discloses a blast furnace slag flushing water chute and a wear-resistant lining for the chute, and relates to the technical field of blast furnace equipment, the water chute comprises a dry slag layer, a common concrete layer, a water slag cast iron lining and the wear-resistant lining; the common concrete layer and the grain slag cast iron lining layer are lower than the dry slag layer and higher than the wear-resistant lining layer; the bottom of the cross section of the wear-resistant lining is arc-shaped, and the radius R of the arc is more than or equal to 200mm and less than or equal to 400mm; the wear-resistant lining layer is provided with a sawtooth-shaped convex body; and a steel wire mesh is laid between the wear-resistant lining layer and the water slag cast iron lining layer. The wear-resistant lining for the chute is formed by mixing and pouring high-strength concrete and scrap iron filler according to the mass ratio of 1: (0.2-0.8), and the particle size of the scrap iron filler is 1-10 mm. The strength grade of the high-strength concrete is not lower than C60. The blast furnace slag flushing water chute can solve the problems that an existing blast furnace slag flushing water chute is poor in structural integrity, a chute lining is prone to abrasion and damage, maintenance is difficult, and cost is high.

The utility model relates to a full-automatic separation system for wet materials containing live insects. The full-automatic separation system comprises a tiled feeding device and a live insect separation device, the tiling and feeding device comprises a stock bin, a material distributing and conveying belt, a first frame and a dispersing and tiling mechanism. The live insect separating device comprises a heat preservation cover, a steel wire mesh belt, a second frame and a larva avoiding mechanism, and the discharging end of the distributing conveying belt is connected with the feeding end of the steel wire mesh belt. Wet materials are uniformly spread into a thin layer through the dispersing and spreading mechanism, so that the hiding of live insects caused by material accumulation is avoided, and the exposure rate of the live insects is obviously improved; through seamless connection of the material distribution conveying belt and the steel wire mesh belt, full-process automation of'tiling, separation and collection 'is formed, manual intervention is reduced, and the treatment efficiency is improved; the steel wire mesh belt intercepts wet materials, the insect receiving conveying belt collects live insects, physical separation of the live insects and the materials is achieved, and the separation efficiency is high.

The invention relates to a device and method for simulating the impact corrosion process of flying droplets, the device comprises a rotary centrifugal system, a test system and a shooting system, the rotary centrifugal system comprises a rotor, a liquid pipeline and a driving part, and the test system comprises a material test assembly and a resistance probe test assembly. The shooting system is used for recording the impact corrosion process of the flying liquid drops; according to the method, corrosive medium liquid is introduced into the communicating cavity of the rotor through the liquid pipeline, the corrosive medium liquid is captured and crushed through the silk screen under the action of centrifugal force generated by rotation of the rotor, and the corrosive medium liquid is thrown out in the form of liquid drops and impacts the material testing assembly and / or the resistance probe testing assembly, so that the impact corrosion process of flying liquid drops is simulated.

The application provides an anti-peeling screw drill stator and a manufacturing method, a metal pipe body, a transition connecting pipe body and a wear-resistant elastic pipe body are nested in sequence, a limiting connection structure is arranged between the transition connecting pipe body and the metal pipe body to ensure that the two will not be separated. The transition connecting pipe body is a pipe body with a three-dimensional porous structure obtained by pressure forming of a metal wire mesh, and the wear-resistant elastic pipe body is a structure formed on the inner side of the transition connecting pipe body under the condition of heating and pressure of a fluid elastic material. In the forming process, part of the fluid elastic material enters the pores of the transition connecting pipe body, and when the fluid elastic material solidifies, the part entering the pores can limit the relative rotation and the relative movement in the radial direction of the wear-resistant elastic pipe body and the transition connecting pipe body. The anti-peeling screw drill stator provided by the application adopts a mechanical connection structure instead of the existing adhesive process to ensure that the metal pipe body, the transition connecting pipe body and the wear-resistant elastic pipe body will not be separated from each other during the working process.

The present application belongs to the technical field of steam-water separation, and particularly relates to an external steam-liquid separation system. The present application is characterized in that sampling devices are arranged at the inlet and outlet of the wave plate dryer and the wire mesh separator, and the conductivity of the condensate water of the sampled steam-liquid mixture is measured in real time and on line, so as to monitor the steam-liquid separation efficiency of the wave plate dryer and the wire mesh separator. Meanwhile, the distance between the wave plates in the wave plate dryer and the thickness of the wire mesh area in the wire mesh separator are adjusted in real time, so that the external steam-liquid separation system provided by the present application can meet the actual requirements through on-line adjustment even when a local fault occurs, and the overall operation of the device is not affected. The external steam-liquid separation system provided by the present application can be provided with multiple groups of wire mesh separators, so as to meet different steam-liquid separation efficiency requirements, and when a group of wire mesh separators fails, the group of wire mesh separators can be disassembled and replaced without affecting the operation of the device.

The invention provides a preparation method and a preparation device of a nano-film. The preparation method of the nano-film comprises the following steps: preparing a coating solution; a scraper is provided and comprises a scraper base body and a silk screen at least wrapping the surface of the blade portion of the scraper base body, the mesh number of the silk screen is larger than or equal to 100, and the surface energy of the scraper base body and the surface energy of the silk screen are both larger than the surface tension of the coating solution; a to-be-coated substrate is provided, and the silk screen on the surface of the blade part is controlled to make contact with the to-be-coated substrate; in the coating direction, the included angle between the scraper and the substrate to be coated is larger than 0 degree and smaller than 180 degrees; continuously dropwise adding the coating solution to the silk screen, controlling the scraper and the to-be-coated substrate to move relatively along the coating direction, and obtaining a liquid film on the surface of the to-be-coated substrate; and curing the liquid film to form the nano film. According to the method, the vertical liquid film is utilized, the lifting speed of the scraper and / or the substrate to be coated and the viscosity and surface tension of the coating solution are adjusted, and the thickness of the liquid film is accurately controlled to be 500 nm or below.

The utility model discloses a prefabricated protective layer and steel wire net rack integrated insulation board, which relates to the technical field of building engineering insulation boards and comprises a connecting part, a fixing part, a steel wire net rack, a protective layer, a damp-proof layer, an insect-proof layer and an insulation layer. By arranging the connecting part and the fixing part, the positions of the damp-proof layer, the insect-proof layer and the heat preservation layer can be flexibly adjusted according to the actual construction geographical position requirement, the installation mode is convenient and fast, and the environmental adaptability and the construction efficiency are improved; by arranging the insect prevention layer, insect prevention and control drugs can be flexibly replaced according to actual geographic positions, measures are adjusted according to local conditions, the insect prevention effect is improved, and applicability is improved; through the arrangement of the connecting parts and the fixing parts, all the parts can be tightly fixed, the heat preservation layer is prevented from being separated from concrete in the pouring process, and therefore the building quality is guaranteed; all the components are arranged in a detachable mode, so that the installation flexibility is improved, and the applicability and the installation efficiency are enhanced.