2099 results about "Coated surface" patented technology

The invention relates to the technical field of surface quality detection, in particular to a PVC floor surface coating defect detection method and system, and the method comprises the steps: carrying out region division on a to-be-detected coating surface, obtaining a region scanning image, and carrying out image optical compensation on the region scanning image; analyzing high-dimensional image features of each area scanning image, performing difference analysis on the high-dimensional image features and reference features, and selecting a surface defect area; a high-dimensional defect feature analysis model is established, defect positioning information and defect geometric parameters are analyzed and generated, and the defect type of the surface defect area is judged according to the defect positioning information and the defect geometric parameters; and according to the defect positioning information and the defect geometric parameters, performing quantitative evaluation on the sensitivity weight of the surface performance of the to-be-detected coating in combination with defects, and outputting an overall surface performance influence analysis result. According to the invention, the problem that the capability of identifying small-size and complex-shape defects is insufficient is effectively solved.

A coating, for example a piezochromic coating, can adhere to a pickleball court. The coating can mark a pickleball bounce point during pickleball play on the pickleball court. When a pickleball bounces from a coated surface of the pickleball court, the pickleball can produce a mark on or in the coating at the bounce point. The mark can provide a visible indication of location of the bounce point that informs whether the bounce point was in an in-bounds or an out-of-bounds area of the pickleball court. The coating can thus help players and / or referees determine who prevailed in a volley or won a point during a pickleball game.

The invention relates to a preparation method of a high-durability multifunctional super-hydrophobic coating. According to the method, a mixed solution of an adhesive and hydrophobic modified nanoparticles is subjected to phase separation through non-solvent induction, so that the hydrophobic modified nanoparticles are coated on the outer layers of adhesive particles to form a uniform suspension, and finally, a micro-nano structure dispersed on the surface and inside of a coating can be obtained. After the surface layer is worn, the newly exposed surface still has an excellent micro-nano structure, namely super-hydrophobic performance; on the other hand, the nanotubes (wires) are added into the suspension, so that the mutual connection among the adhesive particles is further enhanced, and finally, the firm super-hydrophobic coating can be obtained. The super-hydrophobic coating provided by the invention has excellent durability, chemical stability, ultraviolet resistance and thermal stability, and functions of photo-thermal, electric heating, antibiosis, easy deicing, high thermal conductivity and the like, is suitable for various base materials, and is easy to realize large-scale preparation.

Rods, pipes and internal cavities that include a coated surface are described. The rod or pipe can include an alloy layer on an external surface, an internal surface or both. The alloy layer can include molybdenum or tungsten and at least one element or at least one compound comprising one or more of nickel, cobalt, chromium, tin, phosphorous, iron, magnesium or boron.

The invention discloses a carbon-coated foil coating uniformity detection method and system based on machine vision, and the method comprises the steps: S1, collecting blue light, green light, red light and near infrared spectrum images of the surface of a carbon-coated foil coating through a multi-angle camera, and generating a fused composite image through a multispectral image fusion algorithm; s2, performing adaptive histogram equalization and reflected light spot suppression processing on the fused composite image, and outputting an enhanced image; s3, coating edge features in the enhanced image are extracted, segmentation of a coating region is realized in combination with a region growing method, and a coating region mask is obtained; s4, extracting multi-scale texture features of the coating region by adopting a pre-trained ResNet-50 deep convolutional network, and constructing a coating surface feature vector; and S5, based on the extracted feature vectors and a standard template library, through a uniformity evaluation model, calculating a uniformity index of the coating, and detecting the uniformity of the coating. According to the invention, accurate detection of the coating uniformity can be realized.

The invention discloses a high-pressure soft water medium treatment and supply system, which belongs to the technical field of seawater desalination treatment, and comprises a multi-dimensional ion detection module for detecting the concentration distribution characteristics of target inhibition ions in original seawater to generate a corresponding coating material selection instruction; the electric field dynamic coupling module captures a termination signal according to the coating material selection instruction; the shock wave generation module starts a main pump to generate fluid shock waves to execute sediment breaking action according to the termination signal; the monitoring module is used for monitoring the finally output softened water ion concentration and reversely calculating the pollution index of the coating surface; and the heat cycle feedback device is used for starting a self-cleaning mode according to the pollution index and transmitting waste heat in the cleaning process to the pump set. The electric field dynamic coupling adsorption and fluid shock wave cooperative treatment technology is adopted, high-efficiency ion capture, dynamic sediment removal and waste heat recycling can be achieved, energy consumption is remarkably reduced, and continuous and stable operation of the system is guaranteed.

The invention discloses a preparation method of novel AG (anti-glare) glass. The preparation method comprises the following steps: carrying out surface treatment on a glass substrate; uniformly coating a functional coating on the surface of the glass substrate; uniformly coating photoresist on the surface of the functional coating, and performing soft baking treatment after coating; carrying out graphic design and exposure by adopting a high-precision MASK, and accurately transferring a designed microstructure pattern to the photoresist layer; carrying out developing treatment after exposure, removing the unexposed photoresist part, and forming a predetermined pattern on the glass substrate; the developed photoresist pattern is cured to ensure that the photoresist pattern has enough corrosion resistance and stability in the subsequent etching process; carrying out etching treatment, and removing the unprotected functional coating and the glass substrate to form an accurate microstructure pattern; removing the residual photoresist by using a photoresist removal technology to obtain a final microstructure pattern; and the surface of the microstructure pattern is subjected to functionalization treatment through fluorination treatment, so that the microstructure pattern has anti-glare and anti-fouling properties.

The invention discloses a porcelainized expansion type fireproof heat-insulating coating and a preparation method thereof, and relates to the technical field of fire prevention, and the fireproof heat-insulating coating comprises an inner coating and an outer coating; the preparation method comprises the following steps: S1, weighing the raw materials of the component A and the component B; s2, preparing the component A; s3, preparing a component B; s4, the surface of the steel structure is coated with the component A, and an inner coating of the fireproof heat-insulating coating is obtained after normal-temperature drying; and continuously coating the surface of the dried inner coating with the component B through a spraying or brushing method, and drying at normal temperature to obtain the ceramifiable expansive fireproof heat-insulating coating. A porcelainized reaction and an intumescent flame-retardant system are combined to protect the steel structure material from two aspects of efficient flame retardance and high-temperature heat insulation, and the effect is excellent; a nitrogen-phosphorus synergistic flame retardant is used for actively inhibiting the flame combustion process, a high-temperature expansion layer formed by expansible graphite and a vitrifiable heat insulation layer formed by ceramic forming filler are used for greatly improving the high-temperature stability and heat insulation efficiency of a carbon layer, and the fire endurance of a steel structure is prolonged.

The invention relates to the field of battery materials, in particular to a battery cell and an electrochemical device comprising the battery cell, the battery cell comprises a positive pole piece, a negative pole piece, electrolyte and a diaphragm located between the positive pole piece and the negative pole piece; the diaphragm comprises a first coating and a second coating of a base membrane, the first coating is located on the surface of one side of the base membrane and faces the positive pole piece, the second coating is located on the surface of the other side of the base membrane and faces the negative pole piece, and the first coating and the second coating both comprise a first element and a second element; the difference between the mass content ratio b of the first element to the second element on the surface of the second coating and the mass content ratio a of the first element to the second element on the surface of the first coating is controlled to meet a certain range, so that the battery has long circulation and excellent thermal safety performance.

The invention relates to the technical field of skin-touch coatings, in particular to a preparation method of a paint film of an excimer UV skin-touch coating which comprises the following components in percentage by mass: 30%-90% of resin, 5%-40% of monomers, 0.01%-10% of a photoinitiator and 0.01%-10% of an auxiliary agent, the prepared paint film is soft and smooth in surface, low in glossiness, good in wear-resistant effect and good in chemical resistance, the uneven structure formed by the difference of curing of the surface layer and the inner layer of the paint and the effect of microcosmic wrinkles caused by shrinkage of the surface layer achieves the effects that the surface glossiness is low, and the glossiness is lower than 10 degrees when the incident angle is tested to be 60 degrees; and the generated wrinkles are very fine and are naturally generated radians, so that the hand feeling is very smooth, the dynamic friction coefficient of the surface is very low, and the wrinkles on the surface of the coating are caused because the surface curing speed and the bottom curing speed are different, the surface shrinkage is large and the inside shrinkage is small.

The invention provides a 2.5 D phase deflection technology-based complex vehicle body surface coating defect detection method. The method comprises the following steps of: 1, projecting four cosine phase diagrams along an X direction and four cosine phase diagrams along a Y direction to the surface of a vehicle body coating through a programmable light source, and capturing eight cosine phase diagrams reflected by the surface of the vehicle body coating by using a high-precision industrial camera; 2, carrying out fusion processing on eight cosine phase diagrams captured by a camera by adopting a phase deflection technology; and step 3, gradient information of the wrapped phase diagram is extracted and fused, and a shape diagram is generated. The image generated by the technology can detect automobile body coating defects which are difficult to identify by a traditional method, can more clearly reflect fine defects such as sagging, scratches, pits and protrusions on the surface of the automobile coating, and also shows excellent detection capability on the complicated surface of the automobile body coating. According to the technology, the defect detection capability is remarkably improved, the subsequent defect extraction process is simplified, and the detection efficiency and accuracy are greatly improved.

The invention provides a coating defect detection method, electronic equipment and a storage medium. The method comprises the following steps: uniformly mixing fluorescent powder in coating powder, and cladding the mixed powder on the surface of a substrate to form a coating to be detected; performing point-by-point detection on the to-be-detected coating to obtain an actually measured fluorescence spectrum corresponding to each detection point on the to-be-detected coating; according to the actually measured fluorescence spectrum corresponding to each detection point location and a preset standard fluorescence spectrum, judging whether each detection point location is a defect point location or not, and judging the defect type of the defect point location; and if the defect type is an apparent quality defect, determining a coating quality missing value corresponding to the defect point location, and repairing the defect point location based on the coating quality missing value. According to the invention, the detection efficiency and the detection precision of the coating surface defects can be improved.

The invention discloses a coating thickness detection system and method based on visual monitoring, and relates to the technical field of visual monitoring, and the method comprises the steps: carrying out the preliminary prediction of the coating thickness through geometrical optics; performing coating thickness prediction through a multi-channel neural network based on the pre-processed coating surface image and the preliminary prediction value; according to the predicted thickness of the coating, defect identification and evaluation are carried out, and a final coating thickness and defect comprehensive evaluation result is generated; and real-time feedback is carried out through a flaw comprehensive evaluation result. According to the method, the coating surface image is collected in real time and preprocessed, primary thickness prediction is carried out in combination with geometrical optics, accurate coating thickness prediction is carried out through the multi-channel neural network, and the prediction precision and the adaptive capacity are remarkably improved. Through the defect identification and evaluation module, the type, the shape, the complexity and the position of the coating surface defect are comprehensively considered, and the coating defect is accurately identified and quantitatively evaluated, so that the accuracy and the robustness of defect detection are improved.

The invention discloses a passive radiation refrigeration coating and a preparation method thereof, and relates to the technical field of industrial coatings. Comprising a fluoroacrylate emulsion, hollow glass beads, nano titanium dioxide, flaky silicon dioxide aerogel powder, polytetrafluoroethylene micro powder, hydroxyl-terminated polydimethylsiloxane, a hydroxyl acrylic acid modified silane coupling agent, a super-hydrophobic modified fluorosilicone surface additive, nano cerium oxide, aluminum fluoride doped zinc oxide infrared enhancement powder and deionized water. The paint is prepared on the basis of the formula. According to the invention, a multi-scale spectrum regulation and control and surface self-cleaning system is constructed cooperatively, so that the synergistic effect of high reflection of a sunlight region and high emission of a middle infrared region is realized. The coating can maintain continuous passive refrigeration in a day and night period, the surface of the coating has self-cleaning capability and excellent ultraviolet aging resistance, and high reflectivity and high radiation emissivity can be maintained for a long time in a complex outdoor environment, so that the thermal management efficiency of buildings and equipment is remarkably improved.

According to the workpiece surface coating bonding strength scratch detection device and method provided by the invention, the workpiece surface characteristics can be identified, so that the movement path of the scriber is planned, the scriber can change the movement direction along with the change of the surface shape of the workpiece, and the detection of the workpiece with the curved surface characteristics can be realized. The scratch detection device comprises a three-axis moving mechanism, a scriber unit, an observation unit and a workpiece clamp, the scriber unit is mounted on the three-axis moving mechanism, can move on the coating surface of the workpiece to be tested along a planned scriber moving path, scribes on the coating surface of the workpiece to be tested by using a scriber, and applies a test load to the workpiece to be tested; the observation unit is installed on the three-axis moving mechanism, can observe the surface shape of a workpiece to be measured and is used for planning the moving path of the scriber. Meanwhile, the observation unit can also be used for observing the appearance of a scratch scratched by the scriber unit on the surface of the coating of the workpiece to be detected; the workpiece clamp is used for clamping a to-be-tested workpiece.

The invention relates to a double-rare-earth crystal inhibition reinforced modified ultra-high-temperature protective coating as well as a preparation method and application thereof. The preparation method comprises the following steps: preparing a CVD-SiC inner coating on the surface of a matrix material by adopting a chemical vapor deposition method; a slurry sintering method is adopted, and a double rare earth (DRE) doped silicon-based structure anti-oxidation middle layer is prepared on the surface of the CVD-SiC inner coating; and preparing the PVD-ZrC thermal ablation prevention outer coating on the rare earth doped silicon-based anti-oxidation layer by adopting a physical vapor deposition method. According to the SiC / dRe coated Si-ZrSi2-ZrB2 / ZrC coating provided by the invention, the crystallization growth of SiO2-TGO in a silicon-based component structure is inhibited by doping rare earth oxide (REO) and / or rare earth carbide (REC), so that the stress accumulation and thermal expansion mismatch effect of the coating in a thermal service process is greatly relieved. Meanwhile, the complementary advantages of silicon-based ceramic and ultra-high-temperature ceramic in the aspects of oxidation resistance and ablation resistance are fully combined, the thermal protection capacity of the coating under the ultra-high-temperature condition is improved, the service life of the coating is remarkably prolonged, and the service stability of the coating is remarkably improved.

The invention discloses a high-water-resistance photovoltaic module non-glass front plate and a preparation method thereof. The non-glass front plate comprises a transparent fluorine film, a cut-off type transparent flame-retardant adhesive film and a transparent water-blocking composite plate; the transparent water-blocking composite board comprises a transparent transition layer, a transparent PET film, a water-blocking film and a transparent priming coat which are compounded in sequence; the cut-off type transparent flame-retardant adhesive film contains an ultraviolet light absorber; a transparent transition layer in the transparent water-blocking composite board is compounded with the cut-off type transparent flame-retardant adhesive film; the transparent bottom coating is provided with protruding points protruding out of the surface of the coating. The high-water-resistance photovoltaic module non-glass front plate has the advantages of high weather resistance, high light transmittance, light weight, water resistance and flame retardance, is suitable for distributed power generation scenes, and can effectively overcome the defects that a glass back plate is heavy in weight, not easy to install and high in infrastructure requirement.

The invention provides a photo-thermal super-hydrophobic energy storage material, a preparation method thereof and application of the photo-thermal super-hydrophobic energy storage material in anti-icing and deicing, and belongs to the technical field of anti-icing and deicing. The photo-thermal super-hydrophobic energy storage material provided by the invention comprises an energy storage coating and a photo-thermal super-hydrophobic layer which are sequentially arranged from bottom to top, the energy storage coating comprises the following components: first resin and phase change energy storage microcapsules distributed in the first resin; the components of the photo-thermal super-hydrophobic layer comprise second resin and a photo-thermal inorganic material distributed in the second resin; the surface of the photo-thermal super-hydrophobic layer is provided with a micro-nano structure. Efficient anti-icing / deicing is achieved through the synergistic effect of the photothermal effect, the energy storage characteristic and the super-hydrophobicity, and the result of the embodiment shows that the anti-icing duration of the coating prepared through the method reaches 1.5 times that of a traditional super-hydrophobic surface. Meanwhile, under the illumination condition, the temperature of the coating can be increased to about 50 DEG C within 2000 s, and ice can rapidly fall off from the surface of the coating.

The invention provides a laser shock thermal imaging composite coating spraying method and device based on visual guidance, and the method comprises the steps: generating a transient thermal response on the surface of a coating through laser shock, and collecting the temperature field distribution of the surface of the coating in real time through a high-speed thermal infrared imager; the crack position is identified according to the temperature field distribution of the coating surface, thermal response characteristics of a crack area on the coating surface are obtained, and the thermal response characteristics comprise real-time temperature and temperature gradient data of the crack area; establishing a nonlinear mapping model between the crack thermal response characteristics and the crack size, training by adopting a deep neural network, inputting the thermal response characteristics subjected to data preprocessing into the trained deep neural network, and predicting the size and the spatial position of the crack in real time; and target spraying parameters are set based on predicted crack size information, spraying process parameters are adjusted in real time through a self-feedback PID control system, the material ratio is dynamically adjusted through a multi-channel powder feeding system, and the gradient composite coating is formed.

The invention relates to the technical field of coating thickness measurement, in particular to an anti-reflection coating thickness measurement method and system based on a dual-light-path infrared reflection method, and the method comprises the steps: obtaining a reflection signal of a light beam of a measurement light path incident to the surface of a to-be-measured sample coating and a reflection signal of a light beam of a reference light path incident to the surface of a standard sample coating at each moment; performing inversion at each moment to obtain a thickness measurement value of the coating of the to-be-measured sample; collecting reflection spectrum data of the exposed substrate in real time; acquiring a spectral characteristic value and a change degree at each moment; acquiring a predicted thickness measurement error at the next moment of each moment, acquiring a base compensation factor at each moment, and evaluating whether a thickness measurement value at each moment needs to be inversely calculated again or not; if so, constructing a target function at each moment, and optimizing parameters of a Fresnel model of an inversion thickness measurement value at each moment; and carrying out inversion calculation on the thickness measurement value of the coating of the sample to be measured at each moment. The invention aims to improve the stability and precision of the thickness measurement of the anti-reflection coating.

The invention discloses a preparation method of a photo-thermal super-hydrophobic coating with excellent anti-icing / deicing performance in a low-temperature and high-relative-humidity environment, which comprises the following steps of: firstly, growing photo-thermal Cu-MOF (Metal Organic Framework) nano particles on the surfaces of fibrous clay mineral nano particles with low heat conductivity coefficient in situ to construct composite photo-thermal particles with a two-stage nano / nano structure; the preparation method comprises the following steps: preparing nano-particles, then carrying out low surface energy modification on the nano-particles, introducing a low-heat-conductivity-coefficient binder, inducing the binder to generate phase separation through a non-solvent to form a micron-scale binder / low-surface-energy nano-particle aggregate, and finally, spraying to construct the photo-thermal super-hydrophobic coating with a three-level micro / nano / nano structure. The three-level micro / nano / nano structure of the coating simultaneously endows the coating with excellent photo-thermal performance in a low-temperature and high-relative-humidity environment and Cassie-Baxter state stability of liquid drops on the surface of the coating, so that the coating has excellent passive anti-icing / frosting and active deicing / defrosting performance in the environment. The low heat conduction characteristic of the coating further inhibits heat exchange between the base material and water drops, so that the passive anti-icing / frosting performance of the coating is further improved. In addition, the invention also has the advantages of simple preparation method, large-area preparation and the like, and lays a solid foundation for the practical application of the photo-thermal super-hydrophobic anti-icing coating.

The invention discloses a high-barrier coating film for food packaging and a preparation method of the high-barrier coating film, and relates to the field of food packaging materials. Wherein the high-barrier coating film comprises an MDOPE film, a modified PVA coating and an aluminum oxide barrier layer which are arranged in sequence, and before the aluminum oxide barrier layer is deposited on the surface of the modified PVA coating, corona or plasma treatment is firstly carried out on the modified PVA coating; wherein the preparation raw materials of the modified PVA coating comprise water-soluble polyvinyl alcohol, modified graphene oxide and a diluent, and the weight ratio of the water-soluble polyvinyl alcohol to the modified graphene oxide to the diluent is (8.2-9.6): (1-1.5): 100; the modified graphene oxide is obtained by modifying graphene oxide by using a modifying agent comprising water-soluble single-epoxy-group-terminated polyether and an amino silane coupling agent. The coating film has excellent oxygen and water vapor blocking performance, can be suitable for the field of food packaging, and effectively prolongs the storage time of food.

The invention discloses a perovskite crystallization device, and relates to the technical field of perovskite cell preparation, the perovskite crystallization device comprises a crystallization furnace and an air exhaust system, the crystallization furnace is internally provided with a crystallization cavity, the air exhaust system comprises a plurality of air exhaust nozzles, the plurality of air exhaust nozzles are uniformly arranged on the upper part of the crystallization cavity, and the air exhaust nozzles are arranged in the crystallization cavity. And the central area and the edge area of the crystallization cavity are uniformly exhausted. According to the perovskite crystallization device, air is uniformly exhausted from the upper part of the coating, so that the flow velocity difference between the edge area and the central area of the surface of the coating is eliminated, and the problem of non-uniform crystallization caused by non-uniform flow velocity is avoided.

The invention discloses a treatment method for helium holes of an electrostatic chuck, and belongs to the technical field of electrostatic chucks, and the treatment method comprises the following steps: S1, pretreating a gas passage opening and the surface of a substrate: cleaning the helium holes and fine cracks of the substrate, and roughening the surface of the substrate; s2, a ceramic piece is glued to the helium hole opening, wherein the ceramic piece and the side wall of the helium hole opening are tightly attached and bonded together through an adhesive; s3, filling the helium hole ceramic piece with insulating glue: filling holes, cracks and other fine interfaces; s4, grinding the insulation paste filling part to be flush with the surface of the substrate so as to keep the overall flatness; s5, performing meltallizing on the surface of the substrate by using a meltallizing process to obtain the meltallizing coating, uniformly covering the insulating glue filling layer with the meltallizing coating, and forming good combination with the substrate; and S6, grinding and polishing: after the meltallizing coating is completed, grinding or polishing the meltallizing coating to ensure that the surface of the meltallizing coating is smooth.

The invention belongs to the technical field of glass product processing, and particularly relates to an oleophobic and hydrophobic glass product and application thereof in a cooker panel. The preparation method of the oleophobic and hydrophobic glass product comprises the following steps: carrying out cleaning and drying pretreatment on a glass substrate, spraying a silica sol solution, drying at 80-150 DEG C to remove a solvent, heating to 200-400 DEG C, and curing to obtain a SiO2 coating; spraying a polysiloxane solution containing a coupling group on the surface of the SiO2 coating, and drying at 80-150 DEG C to obtain a polysiloxane coating containing the coupling group; and spraying a fluorine-containing polysiloxane prepolymer solution on the surface of the polysiloxane coating, and drying and curing at 90-160 DEG C to obtain the oleophobic and hydrophobic glass product. According to the invention, the SiO2 coating, the polysiloxane coating containing the coupling group and the fluorine-containing polysiloxane coating are sequentially constructed, so that the obtained glass product has good amphiphobic performance and high-temperature-resistant durability, and can be used for manufacturing high-end kitchen range panels.

Organometallic solutions have been found to provide high resolution radiation based patterning using thin coatings. The patterning can involve irradiation of the coated surface with a selected pattern and developing the pattern with a developing agent to form the developed image. The patternable coatings may be susceptible to positive-tone patterning or negative-tone patterning based on the use of an organic developing agent or an aqueous acid or base developing agent. The radiation sensitive coatings can comprise a metal oxo / hydroxo network with organic ligands. A precursor solution can comprise an organic liquid and metal polynuclear oxo-hydroxo cations with organic ligands having metal carbon bonds and / or metal carboxylate bonds.

The invention discloses an anti-corrosion thermal insulation material, a preparation method and application thereof. The coating comprises the following components in parts by weight: 0.1-4 parts of graphene, 5-15 parts of composite microspheres, 10-30 parts of barium sulfate, 10-30 parts of film-forming resin, 18-45 parts of pigments and fillers, 1-8 parts of auxiliaries and 20-50 parts of deionized water. The anti-corrosion and heat-insulating material combines the advantages of graphene, composite microspheres and barium sulfate, and has excellent anti-corrosion performance and heat-insulating performance; the graphene and the composite microspheres can effectively reflect and block heat transfer, so that the temperature of the surface of the coating is reduced; due to the addition of barium sulfate, the stability and mechanical property of the coating are improved, and meanwhile, the corrosion resistance of the coating is enhanced; the preparation process is simple, low in cost and easy for industrial production; and the surface treating agent is suitable for various metal and non-metal surfaces, such as plates, industrial equipment, storage tanks, pipelines and buildings, and has a wide application prospect.

The invention relates to the field of decorative films, in particular to an indented pattern color scraping decorative film and a preparation method thereof.The indented pattern color scraping decorative film comprises a skin feeling functional layer, a pattern developing layer, a supporting strengthening layer and a coloring strengthening layer, the skin feeling functional layer, the pattern developing layer and the supporting strengthening layer are composited into an integrated structure through hot pressing, and micron-sized air guide grooves are formed in the bonding faces of all the layers; the air guide grooves are arranged in parallel along the extending direction of the dimpled grains, the 60-degree glossiness of the surface of the decorative film is less than 3GU, the pencil hardness is greater than 1H, and the texture spacing difference between the outline edge of the dimpled grains and the printed pattern layer is 0.1-0.5 mm, so that the decorative film is endowed with excellent stereoscopic visual effect and physical property. The dimpled grain structure in the skin-touch functional layer is directly formed on the surface of the skin-touch coating, the problem of interlayer dislocation caused by traditional composite embossing is avoided, it is ensured that the dimpled grain outline is clear, the peeling strength between layers is high, bonding is tighter, and no bubble is left on the bonding face between the layers.

The invention relates to the technical field of metal wire processing, and discloses a high-performance metal wire plastic coating process for aerospace engineering, which comprises the following steps: carrying out base material type selection on a metal wire, and carrying out surface treatment of precise cleaning, etching and depth gradient activation; a Ti-Cr alloy and graphene-copper composite transition layer is deposited through a magnetron sputtering technology, and a multi-layer coating structure is formed through electrostatic spraying of a base coating, a fluidized bed dipping function layer and high velocity oxy-fuel spraying of a nano composite coating in sequence; the molybdenum-gold composite sealing layer is prepared by adopting an electric arc spraying technology, and is subjected to vacuum ultraviolet curing enhancement, high-temperature gradient annealing, gradient sintering and vacuum curing treatment; and heat radiation on the surface of the coating is enhanced through laser-induced micro-nano structure regulation and silicon nitride film sputtering. Through collaborative optimization of base material treatment, coating construction, function strengthening and quality control, the interface bonding strength, the comprehensive performance and the environmental adaptability of the spaceflight metal wire coating are remarkably improved, and the service life of the spaceflight metal wire coating is remarkably prolonged.

The invention belongs to the technical field of secondary batteries, and discloses a negative pole piece, a preparation method of the negative pole piece and a quick-charge type lithium ion battery. The negative electrode plate comprises a negative electrode current collector, a bottom coating layer coated on the surface of the negative electrode current collector and an upper coating layer coated on the surface of the bottom coating layer, the active substance in the material of the bottom coating and the active substance in the material of the upper coating are respectively and independently graphite negative electrode materials, and the OI value of the active substance in the material of the bottom coating and the OI value of the active substance in the material of the upper coating are respectively and independently smaller than or equal to 15. Graphite with different OI values is adopted for layered coating, the ion impedance of the pole piece is reduced, the rate capability of the pole piece is improved, and the problem that the energy density and the rate capability cannot be considered at the same time due to insufficient electrolyte wettability, insufficient dynamic performance and poor conductivity caused by thickening of the negative pole piece is solved.