315 results about "Coating adhesion" patented technology

The invention discloses a carbon fiber composite material surface modification spraying system and a control method thereof. The system comprises a multi-axis robot, a plasma spray gun, a contact angle measuring probe, a 3D line laser scanner, a hyperspectral imager, an environment sensor and a controller. According to the method, the plasma power and the robot speed are adjusted in real time through contact angle measurement and plasma treatment feedback control, so that the CFRP surface can accurately reach a target value, and the coating adhesive force is improved; 3D line laser scanning and hyperspectral imaging are combined, and the posture, the distance, the wet film thickness and the component uniformity of the spray gun are monitored in real time; based on a prediction model fusing a physical model and a neural network, a self-adaptive fuzzy PID control algorithm is adopted, and the coating flow and the track posture of a spray gun are accurately regulated and controlled in real time. The problems of weak coating binding force, uneven thickness, orange peel, sagging and serious coating waste in traditional spraying are effectively solved, and self-adaptive, high-quality and green spraying of workpieces with complex curved surfaces is achieved.

The invention discloses an edge spraying compensation control method based on intelligent visual feedback. The method comprises the following steps: performing space scanning on a to-be-sprayed workpiece to obtain spraying image data, and establishing a space corresponding relation between a spray gun motion coordinate and a workpiece surface coordinate; registering the real-time spraying image by using the corresponding relation, identifying a geometric boundary line, brightness gradient change and a coating adhesion area of the edge of the workpiece, and generating edge feature data; according to the difference between the edge feature data and the target spraying image, the spraying coverage deviation and the boundary overlapping error are calculated, the coating thickness change trend, the optical density change rate and the boundary direction offset are extracted, and the spraying gun posture adjustment amount, the spraying distance correction amount, the spraying pressure correction amount and the path speed correction amount are generated; the angle, the spraying distance, the pressure and the movement speed of the spray gun are dynamically adjusted according to the parameters; according to the method, real-time visual feedback and self-adaptive compensation control in the spraying process are achieved, and the uniformity and consistency of the coating on the edge of the workpiece are effectively improved.

The invention discloses a coating proportion optimization method and system based on multi-dimensional analysis, and relates to the technical field of coating engineering.The method comprises the steps that multi-type high-precision sensors are integrated in spraying equipment to collect environment data and coating data in the environment and the spraying process in real time, and the environment data and the coating data are preprocessed through a data processing platform; and forming a spraying influence data set. The central control system calculates a coating thickness recursive adjustment index tdt according to a nonlinear recursive model to perform coating thickness conformity evaluation, and when the evaluation is that the requirement is not met, a coating viscosity fluidity index tll and a coating adhesion response index zfl are deduced according to the performance response data set and the coating thickness recursive adjustment index tdt; and summarizing to generate a comprehensive coating adjustment index ttz, and evaluating whether the current ratio is compliant or not in real time, so that the coating can achieve high consistency, high adhesiveness and process stability in different spraying environments, and the coating quality and the intelligent response capability are remarkably improved.

The present application relates to a kind of high weather resistance and coating adhesion sunscreen coating and its preparation method, belong to sunscreen coating technical field;The present application uses the modifier with disulfide bond and polymerizable double bond to modify polyacrylate emulsion, significantly improve the flexibility of polyacrylate molecular chain after modification, reduce solidification shrinkage stress and internal stress, improve the coating adhesion of sunscreen coating of hard filler to matrix resin, it can also form stable chemical bonding between polyacrylate resin and titanium dioxide, provide stable stress transfer path, reduce the cracking and warping of coating, in addition, the modifier of the present application has good heat resistance aromatic ring structure, using the modifier of the present application can improve the heat resistance of sunscreen coating without introducing additional modifier.

The invention relates to the technical field of strip steel cutting machining, in particular to a coiled strip steel shearing machining treatment method and device. S2, double-area elastic abutting is carried out; s3, dynamic cutting and dynamic adjustment; s4, shearing dynamic parameters; s5, dynamic cleaning of the cutting edge is conducted, specifically, a plating layer adhering to the cutting edge is removed in real time in a combined mode of airflow blowing and brush cleaning; s6, coating micro-area synchronous repair is carried out; and S7, buffering and rolling are conducted, specifically, after spraying, drying and flexible straightening are conducted, rolling is conducted, and machining is completed. Through pretreatment integrated design, double-area elastic symmetric constraint and a vibration dynamic adjusting system, vibration interference of the strip steel and the cutter is accurately restrained, and matched control over the cutter gap and the strip steel thickness is achieved, so that the flatness and size precision of the strip steel shearing face are remarkably improved, the defects of shearing burrs, coating adhesion and the like are effectively reduced, and the product quality is improved. And the harsh requirement of high-end strip steel on the shearing quality is met.

An automatic spraying device for a surface coating of a special-shaped ceramic component relates to the technical field of surface spraying equipment and comprises an integrated electric cabinet, a spraying workbench is fixed to the upper surface of the integrated electric cabinet, and a feeding and discharging conveying assembly, a vacuum positioning assembly, a surface pretreatment assembly, a self-adaptive spraying assembly and a drying and curing assembly are arranged on the spraying workbench; the feeding and discharging conveying assembly comprises a transversely-sliding transfer conveying base. A plurality of feeding conveying rollers and a plurality of discharging conveying rollers which are the same in number are arranged on the two transverse sides of the transfer conveying base correspondingly. The vacuum positioning assembly comprises a vacuum adsorption mold which is rotationally arranged, the vacuum adsorption mold is a conical mold which is gradually shrunk from bottom to top, and a T-shaped vacuum adsorption runner is formed in the vacuum adsorption mold. The device solves the problems that when a traditional special-shaped ceramic component is subjected to spraying processing, the automation degree is low, the special-shaped adaptation and positioning performance is poor, the spraying precision is difficult to control, the coating adhesive force is weak due to incomplete pretreatment, equipment is difficult to maintain and debug, and the adaptability is poor.

The invention discloses a waterproof bag film material and a preparation method thereof, relates to the technical field of polybutylene terephthalate polymer materials, and belongs to the patent classification number C08L67 / 02. The method comprises the following steps: sequentially carrying out silane coupling agent modification and solid-phase free radical polymerization on activated gas-phase nano silicon dioxide to construct a core-shell structure nano reinforced filler with rich epoxy groups on the surface; carrying out melt blending extrusion on the mixture, PBT (Polybutylene Terephthalate) resin, a chain extender, an end-capping reagent and the like to obtain hydrolysis-resistant modified granules; a PBT base film is prepared through casting, two-way stretching and heat setting; the preparation method comprises the following steps: performing ultraviolet ozone activation on a base film, coating a super-hydrophobic coating solution prepared from aminated nano silicon dioxide, epoxy-terminated polydimethylsiloxane, a cross-linking agent and an accelerant, and heating and curing to finally obtain the high-strength high-waterproof PBT waterproof bag film. The prepared film has excellent mechanical strength, body hydrolysis resistance and super-hydrophobic surface, the water contact angle is high, the coating adhesive force is high, and the waterproof performance is lasting and stable under high-frequency bending.

The invention discloses a super-hydrophobic heat insulation / radiation refrigeration integrated fabric and a preparation method thereof.The method comprises the steps that firstly, a heat insulation layer is constructed on a base fabric through electrostatic spraying, specifically, PU and SCA are dissolved in DMF, SiO2 aerogel is added to form spraying liquid, a three-dimensional network structure is formed between aerogel and fibers through the synergistic cross-linking effect of SCA and PU, the aerogel is firmly anchored, and the heat insulation layer is formed; the adhesive force and the washability of the coating are improved. PVDF-HFP and ZrO2 nano-particles are blended and spun to form a composite structure with nano-fibers wrapping ceramic particles, particle aggregation is avoided, and the radiation refrigeration and heat insulation performance of PVDF-HFP and ZrO2 nano-particles are synergistically exerted. Finally, a substrate-heat insulation-refrigeration three-dimensional composite structure is formed through hot pressing treatment, chemical bonding of all the layers is achieved through SCA, the fabric has the characteristics of high strength, abrasion resistance, hydrophobicity, heat insulation and radiation refrigeration, and the problem that durability and comfort of a traditional material are difficult to achieve at the same time is solved.

The invention discloses a preparation process and application of a photovoltaic solder strip precoating flux, and belongs to the technical field of energy conservation and environmental protection. According to the welding flux, polyurethane modified epoxy resin and photosensitive acrylate serve as matrixes, modified carbon quantum dots, a nano welding-aid active agent and a modified dicyandiamide curing system are introduced, fumed silica, polyether modified organic silicon, a titanate coupling agent, an antioxidant and a flatting agent are compounded, and high-speed dispersion, grinding and vacuum defoaming are conducted to obtain the welding flux. The obtained pre-coated flux forms a coating through precise coating, cross-linking curing is conducted under the UV-LED segmented photocuring and thermocuring conditions, the welding strength of a welding strip and the adhesive force of the coating can be remarkably improved, corrosion resistance is enhanced, VOC emission is reduced, and the pre-coated flux is suitable for large-scale production of efficient and long-life photovoltaic modules.

The invention relates to the technical field of coatings, in particular to a PVD (Physical Vapor Deposition) coating process method applied to a galvanized sheet stamping die, which comprises the following steps of: pretreating the die, cleaning the surface of the die by a wet process, placing the die in a vacuum deposition cavity, vacuumizing, and heating to a preset temperature in an inert gas environment; plasma pretreatment is conducted on the surface of the mold, a high-power pulse magnetron sputtering cathode of a chromium target is selected to discharge in the argon working environment to generate plasma rich in chromium ions, and negative bias voltage is applied to the mold; starting at least one unbalanced magnetron sputtering cathode, gradually increasing the target current by the unbalanced magnetron sputtering cathode in a current ramp-up mode so as to improve the target voltage, and synchronously introducing nitrogen as a reaction gas, so that a nitride transition layer is deposited on the surface of the mold; and a high-power pulse magnetron sputtering cathode and an unbalanced magnetron sputtering cathode synchronously work on the transition layer to carry out multi-source reactive sputtering deposition, so that a multi-layer hard coating formed by alternating titanium aluminum vanadium and chromium nitride is formed. By combining the high-power pulse magnetron sputtering technology and the unbalanced magnetron sputtering technology, the problems that in the prior art, a coating is poor in adhesive force and insufficient in high temperature resistance are solved.

The utility model discloses an aluminum pot coating adhesive force testing device, which relates to the technical field of aluminum pot testing, and comprises a base, a positioning plate and a transverse frame, the top end of the base is provided with the positioning plate, the top end of the positioning plate is provided with an aluminum pot body, and the inner side of the positioning plate is provided with a first slide rail; a clamping mechanism used for fixing the position of the aluminum pot body is arranged in the first sliding rail, a transverse frame is installed at the top end of the positioning plate, second sliding rails are installed at the top end and the side wall of the transverse frame, moving blocks are arranged in the second sliding rails, guide rods are installed on the inner walls of the moving blocks, and the outer walls of the guide rods are sleeved with sliding blocks; according to the device, the pressing block drives the pull rod to move downwards, then the pull rod drives the positioning frame to turn over downwards around the arc-shaped positioning block to be pressed above the aluminum pot body, and through the structure, the position of the aluminum pot body can be rapidly pressed and fixed conveniently.

This invention relates to the field of tablet preparation technology, specifically to a drug coating state detection system and method. The system includes a surface pretreatment module, a coating execution module, an online monitoring module, a data processing module, and a control module. The pretreatment module removes contaminants and enhances activity through plasma treatment, thereby improving coating adhesion. The coating execution module uses a fluidized bed environment, combined with a multi-channel spray gun and attitude control, to achieve uniform coating. The online monitoring module simultaneously acquires three-dimensional morphology, spectral, and image data, suppressing interference to ensure reliability. The data processing module calculates thickness and uniformity indicators, using machine learning to correlate process and quality. The control module dynamically adjusts parameters based on quality parameters using a PID algorithm, initiating emergency handling in case of anomalies. The method corresponds to the above steps. This invention improves coating adhesion and uniformity, achieves real-time monitoring and precise control, reduces the difficulty and cost of quality control, and is applicable to the production of various functional tablet coatings.

The utility model provides a compressor rear end cover coating and a compressor rear end cover, and belongs to the technical field of compressors. The compressor rear end cover coating comprises a bottom layer bonding layer and an insulating layer, the bottom layer bonding layer is attached to a compressor rear end cover, the insulating layer is arranged on the bottom layer bonding layer, and the insulating layer comprises PEEK paint. The coating is good in adhesive force and excellent in insulating property, and can meet the use requirements of the compressor.

This utility model relates to a straddle-type wheeled conductive seat, comprising: a frame and a rolling contact assembly mounted on the frame. The rolling contact assembly includes: a fixed seat connected to the frame and a conductive wheel pivotally connected to the fixed seat. Both the fixed seat and the conductive wheel are conductive components. The axis of the conductive wheel is horizontally oriented. The conductive wheel includes: a wheel body, a first limiting sleeve located on one side of the wheel body, and a second limiting sleeve located on the other side of the wheel body. The wheel body, the first limiting sleeve, and the second limiting sleeve are coaxial. The outer diameter of the wheel body is larger than the outer diameter of the first limiting sleeve, and the outer diameters of the first limiting sleeve and the second limiting sleeve are equal. The wheel body is used to contact the bottom surface of the top of the strip so that the strip straddles the wheel body. This straddle-type contact between the strip and the conductive wheel not only increases the electrical contact area but also changes the contact zone with the strip, thereby improving the coating adhesion and preventing scratches on the outer surface of the strip.

The utility model discloses a positive electrode material coating device, which relates to the technical field of positive electrode material processing and comprises a base, one end of the top of the base is fixedly connected with a cleaning bin, the other end of the top of the base is fixedly connected with a mixing bin, and an output port of the cleaning bin is fixedly connected with an input port of the mixing bin. A first electric valve is fixedly connected to the top of the cleaning bin, a feeding cleaning bin is fixedly connected to the top of the first electric valve, and a water inlet pipe opening is fixedly connected to the side wall of the feeding cleaning bin. According to the base provided by the utility model, the positive electrode material and the coating material are efficiently mixed on the basis that the coating adhesion efficiency is improved by cleaning and pretreating the positive electrode material; therefore, the problems that an existing positive electrode material coating device cannot clean and pretreat the positive electrode material during use, adhesion of the coating material is affected by dust adhered to the surface, and the mixing efficiency is low by adopting a stirring mode during mixing are solved.

The application discloses an alkaline chemical nickel surface treatment method for pure aluminum or aluminum alloy; the method solves the problems of twice zinc immersion and once zinc removal in the production process, and only one-time zinc immersion process can meet the requirement of product coating adhesion, effectively improves the product stability and safety in the production process, and simultaneously, the method does not need 50% nitric acid zinc removal process, can obviously reduce the use amount of nitric acid in the production process, and efficiently improves the production environment.

The invention belongs to the technical field of drilling tools, and discloses a coating drilling tool and a machining method.The coating drilling tool comprises a drill tip part, the drill tip part comprises a front tool face and two tool end faces, the two tool end faces intersect to form a chisel edge, each tool end face comprises a first rear tool face, and the first rear tool faces intersect with the front tool face to form a main cutting edge; the drill tip part further comprises a first machining area, the first machining area is arranged on the front tool face and intersects with the main cutting edge, a first micro-texture is arranged in the first machining area, and / or the drill tip part further comprises a second machining area, the second machining area is arranged on the first rear tool face and intersects with the chisel edge and the main cutting edge, and a second micro-texture is arranged in the second machining area. A second microstructure is arranged in the second machining area. The first microtextures and the second microtextures can improve the surface roughness of the front tool face and the first rear tool face, improve the coating binding force, slow down tool abrasion, improve the cutting performance and reduce abrasive particle abrasion and bonding abrasion between interfaces.

The present application relates to a kind of environment-friendly water-based phenolic resin anticorrosive coating and its preparation process, belong to the field of coating technology.The coating is made of water-based phenolic resin emulsion, hyaluronic acid-lysine composition load nano SiO2-ZnO composite filler, synergistic anticorrosive filler, wetting dispersant, film forming aid, leveling thickener, defoaming agent and deionized water.The superhydrophilic of hyaluronic acid fundamentally solves the dispersion and storage stability problem of phenolic resin in aqueous phase, and the amino group of its lysine side chain can also chemically bond with resin during curing, significantly enhancing the adhesion, flexibility and interfacial bonding strength of coating.At the same time, nano SiO2, ZnO and synergistic anticorrosive filler construct a multiple synergistic anticorrosive network of physical shielding, sacrificial anode and chemical passivation, achieving long-term active protection.The whole system uses water as medium, selects bio-based raw materials and low VOC additives, and the environmental protection is outstanding.

This invention discloses a polypropylene composition, its preparation method, and its applications, belonging to the field of polymer materials technology. The polypropylene composition provided by this invention comprises the following components in parts by weight: 23-62 parts PP resin, 18-32 parts POE elastomer, 1-7 parts chopped glass fiber, and 13-27 parts mica powder; wherein the PP resin is prepared at a temperature of 200°C and a shear rate of 100 s. ‑1 melt shear viscosity η PP With POE elastomer at a temperature of 200℃ and a shear rate of 100s ‑1 melt shear viscosity η POE The ratio η PP / η POE The aspect ratio of the chopped glass fibers is 0.38-1.65; the aspect ratio of the chopped glass fibers is 280-350; and the D50 diameter of the mica powder is 15-35 μm. The polypropylene composition provided by this invention has a low linear coefficient of thermal expansion and high coating adhesion.

The application discloses a preparation process and application of a photovoltaic welding strip pre-coated with flux, and belongs to the technical field of energy saving and environmental protection. The flux is prepared from polyurethane modified epoxy resin and photosensitive acrylate as a base, modified carbon quantum dots, nano soldering flux activator and a modified dicyandiamide curing system, and is compounded with fumed silica, polyether modified silicone, titanate coupling agent, antioxidant and leveling agent, and is prepared through high-speed dispersion, grinding and vacuum degassing. The obtained pre-coated flux forms a coating layer through precision coating, and is crosslinked and solidified under the conditions of UV-LED segmented photocuring and thermal curing, so that the welding strength of the welding strip and the coating adhesion can be remarkably improved, the corrosion resistance can be enhanced, and VOC emission can be reduced, and the pre-coated flux is suitable for the large-scale production of high-efficiency and long-service-life photovoltaic modules.

The application relates to a neodymium-iron-boron magnet surface nano-composite coating optimization method in the field of new materials, which comprises the following steps: according to an optimization scheme for hydrogen embrittlement inhibition, local electroplating parameter adjustment is carried out on a high-porosity area of the coating, multi-layer composite deposition technology is used to optimize the coating structure, and higher uniformity of the coating microstructure data is obtained; according to final coating performance data, relevant index information of mechanical performance decline is obtained, digital evaluation of coating adhesion and strength is carried out by using a preset mechanical performance analysis model, and an optimization result of the mechanical performance is determined; according to the optimization result of the mechanical performance, all process parameters and performance data are input into a database through data integration technology, a traceable process optimization file is formed, and complete neodymium-iron-boron magnet electroplating process technology improvement records are obtained.

This invention discloses a water-based epoxy resin coating for 6005 aluminum alloy that prevents sagging and cracking, and its preparation method. The coating is a two-component system. Component A contains water-based epoxy resin emulsion, CTBN-modified toughening resin, composite anti-rust pigments, flake-shaped shielding fillers, and compounded thixotropic rheology agents, etc. Component B is a water-based amine curing agent. This coating can solve the sagging and cracking problems of existing coatings on 6005 aluminum alloy, achieving a coating adhesion grade of 0, a neutral salt spray test of ≥900h, and VOC ≤42g / L. It meets the stringent protection requirements of 6005 aluminum alloy and has excellent prospects for industrial application.

The invention discloses a coating anode with an intermediate layer improved by a composite additive and a preparation method and application of the coating anode, and belongs to the technical field of electrodes, and the preparation method comprises five steps of titanium substrate pretreatment, intermediate layer coating liquid preparation, intermediate layer preparation, active layer coating liquid preparation and active layer preparation. In the middle layer coating liquid preparation step, an alcohol solvent and polyether modified polysiloxane are added into a middle layer base solution, the volume ratio of the middle layer base solution to the alcohol solvent to the polyether modified polysiloxane is 10: (1-5): (0.5-2), and the base solution containing the composite additive is prepared after uniform mixing. According to the method, the alcohol solvent and the polyether modified polysiloxane are added into the conventional titanium-tantalum base solution according to a specific proportion, so that cracks on the surface of the material are effectively reduced, and the compactness of the middle layer is enhanced. According to the method, the binding force of the coating is improved, and the problem of failure of an anode plate caused by passivation of a titanium base material due to surface cracks of a traditional intermediate layer is solved, so that the service life of the coating titanium anode is remarkably prolonged.

The invention relates to the field of high-temperature thermal resistance coatings, in particular to a material selection and preparation process of a low-infrared-transmittance coating, and particularly relates to a preparation method of a high-scattering-rate high-temperature thermal resistance coating, a base material of the high-scattering-rate high-temperature thermal resistance coating is Gd2Zr2O7, and the high-scattering-rate high-temperature thermal resistance coating further comprises a second-phase material; firstly, a required second-phase material is screened on the basis of machine learning in combination with experiments and a first principle, then a PS-PVD gas phase-solid phase codeposition method is adopted, the high-scattering-rate high-temperature thermal resistance coating is prepared, according to the obtained coating, a high-refractive-index-low-refractive-index interface between GdFeO3 particles and Gd2Zr2O7 gas phase columnar crystals can effectively increase scattering of infrared radiation, and the heat resistance of the coating is improved. And the vapor phase and solid phase co-deposited columnar crystals have uniform thermal physical properties, so that excellent coating binding force and excellent anti-sintering performance are provided.

This invention relates to the field of thermally insulated aluminum materials, and discloses a thermally insulated aluminum material and its preparation method. The aluminum material consists of a 6061 aluminum substrate and a composite thermally insulated coating layer. The coating layer uses 40-45 parts by weight of bisphenol A type epoxy resin as the matrix, and is formulated with modified silica, coupling agent-modified adamantane, polyethyleneimine-modified hollow glass microspheres, and other modified fillers and additives. The aluminum material is prepared by roughening the substrate through grinding, coating it with the coating, and curing at room temperature for 45-55 minutes. This aluminum material exhibits significantly reduced thermal conductivity, coating adhesion reaching grade 0, excellent aging resistance and water resistance, and a simple preparation process with mild reaction conditions and readily available raw materials. The components work synergistically, making it suitable for industrial mass production and applicable to various thermally insulated aluminum material applications such as construction, automotive, and chemical industries.

The invention discloses a preparation method of ultra-soft coating abrasive cloth, and particularly relates to the technical field of abrasive cloth preparation, the preparation method comprises the following steps: S1, pretreatment of a base material; s2, primer coating is carried out; s3, electrostatic sand planting; s4, coating and curing surface glue; s5, preparing and curing a multifunctional coating; and S6, carrying out finished product post-treatment. According to the invention, through targeted modification of the pure polyester gray fabric, the adhesive force of the coating is greatly improved while the super-soft fitting property is maintained; by means of the sand planting technology, both coarse grinding materials and fine grinding materials can achieve high and uniform sand planting density, so that the excellent cutting efficiency is obtained, meanwhile, the nanometer aluminum oxide enhanced surface glue is combined, the grinding material falling-off rate is extremely low, and the product durability is greatly improved; through a compound coating of nano silicon dioxide, magnesium hydroxide and polytetrafluoroethylene micro powder, the functions of high temperature resistance, high flame retardance and blockage resistance are synchronously achieved, and the problems that a traditional product is single in performance and limited in scene are solved.

The utility model discloses a kind of ion auxiliary processing devices for metal bottle coating adhesion enhancement, comprising: device main body, the device main body inside is provided with baffle, device main body is separated into plating cavity and working cavity by baffle;Ion cleaning spray head is provided in the plating cavity, rotating structure, vacuum extraction structure and air inlet structure are provided in working cavity;The front of the plating cavity is rotatably provided with first cover plate, and the plating cavity is sealed by first cover plate;Second cover plate is rotatably provided on the back of working cavity, and working cavity is closed by second cover plate, to facilitate opening second cover plate to overhaul rotating structure, vacuum extraction structure and air inlet structure.The utility model carries out ion cleaning to cosmetic packaging bottle by ion cleaning spray head, effectively removes the pollutants and oxides on the surface of metal bottle, improves surface state, to significantly enhance the adhesion between coating and metal bottle, improve product quality.

This invention relates to a high-temperature resistant industrial coating and its preparation method. The method includes: amylating Fe3O4 nanoparticles; grafting the amylated Fe3O4 nanoparticles with polybenzimidazole to obtain PBI-g-Fe3O4 composite particles; in-situ growing MOF to form polyMOF; and surface modification with a hydrophilic silane coupling agent to obtain a hydrophilic modified polyMOF; simultaneously, co-grafting silica nanoparticles with an aminosilane coupling agent and a long-chain alkylsilane coupling agent to obtain a synergist; finally, dispersing all components in an aqueous polyester resin varnish to prepare a composite coating. This invention achieves stable dispersion and strong interfacial bonding of polyMOF in aqueous polyester through a multi-level chemical bonding structure. The synergist synergistically provides curing and defoaming effects. The resulting coating exhibits grade 0 adhesion, excellent defoaming performance, a pencil hardness of 3H, and a temperature resistance limit of 640℃, showing broad application prospects in the field of high-temperature protection.

This invention relates to the field of artificial intelligence technology, and in particular to an automatic anti-corrosion coating device for the interior of circular hollow terminals. It includes a conveyor belt and a frame. The coating structure includes a mounting frame, with a nozzle mounted at the bottom of the mounting frame. The nozzle has a spiral guide groove in its inner cavity, an anti-clogging structure at the spraying end, and an adjustment structure for adjusting the nozzle angle at the other end. An intelligent control system for controlling the spraying is installed within the frame. This invention, by setting an adjustment structure for the nozzle angle, allows the nozzle's inclination angle to be adjusted within the range of 15-30°. This allows for flexible adjustment of the nozzle according to the depth and shape of the terminal's inner wall. Three nozzles are evenly arranged at 120° intervals to ensure uniform coating coverage. This allows the device to adapt to terminal inner walls of different depths and shapes, overcoming the problems of uneven coating and missed areas affecting coating adhesion.

This invention relates to the field of surface coating technology for new energy vehicle parts, and provides a low-VOC environmentally friendly intelligent spraying process for new energy vehicle parts. The process includes: S1. Plasma activation pretreatment of aluminum alloy substrate; S2. Robotic electrostatic contour spraying using a water-based UV-curable coating containing polyrotaxane functional additives and multi-component sol-gel precursors; S3. Infrared-assisted leveling; S4. Stepwise intelligent curing of UV-LED pre-curing and hot air post-curing; S5. Cooling and offline detection; wherein, the polyrotaxane additive provides physical entanglement and stress buffering, the carboxyl-containing silane in the sol-gel precursor provides chemical anchoring, and γ-glycidyl etheroxypropyltrimethoxysilane / tetraethyl orthosilicate provides physical confinement and coating crosslinking. The three work synergistically to build an anchoring structure at the interface, thereby improving coating adhesion.