413 results about "Plasma surface" patented technology

The invention relates to the technical field of sole processing, in particular to a sole composite processing method, which comprises the following steps: according to the rigidity requirement of an arch support area, preparing high-density slurry in which silicon nitride ceramic powder accounts for 30-40%, forming # imgabs0 # crystal phase through microwave-assisted sintering, and controlling the porosity to be 10-20%; according to the energy rebound requirement of the forefoot buffer area, graphene oxide / carboxymethyl cellulose aerogel powder is added into the slurry until the concentration is 25%, and the porosity is increased to 40-60% by combining the honeycomb porous network design; a nano silicon dioxide reinforcing agent is introduced into a wear-resistant area of the heel to 15%, a diamond-like carbon coating is formed through plasma surface treatment, and the porosity is limited to be 5-15%. According to the invention, silane is encapsulated by adopting polyurea microcapsules, and is released only when the material is damaged, so that dynamic self-repairing is realized, the shoe sole is endowed with dynamic repairing capability, and the service life is prolonged.

The invention relates to a preparation method and system of a high-performance electronic tag in the field of electronic tag manufacturing, and the method comprises the steps: obtaining the working parameters of a high-frequency / NFC electronic tag in a high-temperature environment, analyzing the conductivity change trend of an antenna material, building a mathematical model of the influence of the high-temperature environment on the antenna material, and obtaining the high-performance electronic tag according to the model. Adjusting the component proportion of the antenna material to obtain an optimized antenna material formula; on the basis of optimizing an electromagnetic shielding scheme, comprehensive performance data of a high-frequency / NFC electronic tag in different environments are collected, a performance prediction model under the coupling action of multiple environmental factors is established, the model is adopted to simulate the working state of the tag in a complex working condition, and the performance stability of the tag is judged; after an antenna pattern is precisely processed, characteristic data of all layers of materials of the high-frequency / NFC electronic tag are collected, a relation model of material characteristics and bonding strength is established, and interlayer bonding force is enhanced by adopting a plasma surface treatment technology, so that an optimized bonding process scheme is obtained.

The invention discloses a plasma surface activation pre-bonding-femtosecond laser connection integrated process, belongs to the technical field of advanced dissimilar material precision connection, and particularly relates to a multi-material interface efficient connection method based on plasma surface activation pre-bonding and femtosecond laser processing. The method is suitable for high-strength and low-thermal-damage heterogeneous bonding of transparent materials (such as glass, quartz and sapphire) and transparent materials or metal materials (such as titanium alloy, stainless steel and invar alloy). According to the method, interface atomic-scale cleaning and chemical activity regulation and control are achieved through plasma activation, interface connection of the two materials is induced by combining the femtosecond laser ultrafast nonlinear effect, and the bottlenecks that in a traditional connection technology, optical contact depends on a mechanical clamp, and heat input is uncontrollable are broken through; and an innovative solution is provided for cross-material interface functional manufacturing in the fields of photoelectric device packaging, optical-electronic integrated systems and the like.

The invention discloses a melt blending preparation process of a semiconductive shielding material for an ultrahigh-pressure crosslinked polyethylene cable, which comprises the following steps: S1, premixing low-density polyethylene and an ethylene-vinyl alcohol copolymer in proportion, the vinyl alcohol chain segment content of the ethylene-vinyl alcohol copolymer being 25%-45%; s2, performing plasma surface treatment on carbon black, and compounding the carbon black with carbon nanotubes to form a conductive filler system; s3, under the protection of inert gas, adding the matrix resin in the step S1 and the conductive filler in the step S2 into a double-screw extruder in stages, and synchronously adding a hindered phenol and phosphite compound antioxidant; and S4, carrying out segmented mixing under the temperature gradient of 160-210 DEG C. Through synergistic compounding of the plasma surface modified carbon black and the carbon nanotubes and in combination with a staged feeding process, directional dispersion of the conductive filler is realized, a three-dimensional interpenetrating conductive network is formed, and the local electric field homogenization capability of the ultrahigh-voltage cable is remarkably improved.

The invention relates to the field of school uniform fabric production, in particular to a preparation method of an environment-friendly quick-drying school uniform fabric, which comprises the following preparation steps: S1: material selection, S2: fiber functionalization treatment, S21: plasma surface modification, S22: enzymatic polishing, S3: blended yarn preparation and fabric weaving, S4: fabric dyeing, S5: multifunctional composite finishing, S51: spraying of a waterborne polyurethane coating, S52: ozone washing water softening, s6, carrying out post-treatment; the regenerated polyester, the organic cotton and other raw materials are adopted, the regenerated polyester is made of recycled PET plastic bottles and is environmentally friendly and economical, polar groups on the surface of the regenerated polyester are activated through plasma surface modification, the hygroscopicity is greatly improved, the quick-drying performance is enhanced, and by means of a unique double-layer honeycomb mesh structure and a double-strand yarn optimization treatment mode, the moisture absorption performance is greatly improved. A multidirectional moisture guiding channel is formed, and the moisture evaporation rate is increased, so that the prepared school uniform fabric is environment-friendly, durable and comfortable while maintaining high-breathability and quick-drying performance.

The invention provides an airflow drying and surface modification technology for lemon fibers, relates to the technical field of lemon surface processing, and realizes the whole process optimization of lemon fiber production through ultrasonic-microwave synergistic extraction, pulse type ultrasonic-hot air coupling airflow drying, low-temperature plasma surface modification and an intelligent control system based on Q-learning. The pectin yield is increased by about 20% through ultrasonic-microwave synergistic extraction, the extraction time is shortened by 50%, flow drying is assisted by double-frequency ultrasonic waves and magnetized water mist, the drying time is shortened by 50%, the energy consumption is reduced by 20%, the fiber softness is improved by 15%, the fiber is endowed with 99% antibacterial rate and excellent hydrophilicity through low-temperature plasma modification, chemical reagents are not needed, and environmental pollution is reduced. The intelligent control system converts waste liquid into ethanol and lactic acid through real-time data optimization and closed-loop resource utilization, zero waste discharge is achieved, the ethanol yield is increased by 12%, the additional value of lemon peel byproducts is remarkably increased, and the method is suitable for the fields of food and materials and conforms to the green chemistry concept.

The invention relates to the technical field of cable materials, in particular to a flame-retardant efficient cross-linked polyolefin cable body and a preparation method thereof. The cable body comprises a polyolefin matrix, 2, 4-dihydroxy-6-methyl benzamide, an intumescent flame retardant, dicumyl peroxide, an antioxidant, a light stabilizer and a lubricant, wherein the polyolefin matrix is subjected to synergistic modification by phosphorus-nitrogen heterocyclic silane-plasma. The preparation method of the polyolefin matrix synergistically modified by phosphorus-nitrogen heterocyclic silane-plasma comprises the following steps: performing grafting reaction on polyolefin resin and phosphorus-nitrogen heterocyclic silane under the action of an initiator, and performing plasma surface treatment to endow the material with dual active sites. The preparation method comprises the following steps: melting and granulating a polyolefin matrix subjected to phosphorus-nitrogen heterocyclic silane-plasma synergistic modification, small organic molecules and auxiliaries, and performing extrusion molding under a crosslinking condition to obtain a cable body. The material disclosed by the invention has comprehensive advantages in flame-retardant efficiency, crosslinking degree and mechanical property, and is suitable for manufacturing high-safety power cables.

The invention discloses vacuum coating equipment for coating an anti-fingerprint film and a coating method. The coating method comprises the following steps: performing plasma activation treatment on the surface of a glass substrate to form an activated substrate; a gradient transition layer is deposited on the surface of an activated substrate, a Cr-Si composite transition layer with continuously changing components is formed by alternately adjusting sputtering power of a metal target and a non-metal target, a fluorocarbon polymer main film layer is deposited on the transition layer substrate, and C4F8 gas is controlled by adopting a pulse magnetron sputtering process to generate an anti-fingerprint functional layer substrate with uniform thickness; stepwise in-situ annealing treatment is carried out, and a densified composite film layer structure is formed through segmented heating and heat preservation; performing plasma surface modification on the surface to form a low-surface-energy chemical group, and finishing functional treatment; through combination of a composite coating process and an intelligent control technology, cooperative regulation and control of anti-fingerprint film interface strengthening, function construction and structure optimization are realized in a single vacuum environment.

The invention discloses a preparation process of open-cell organic silicon foam, and aims to solve the problems of non-uniform pore structure, low aperture ratio and difficulty in performance balance in the prior art. The process comprises the following steps: optimizing parameters through bubble nucleation, pore connectivity and a mechanical property model; preparing a composite raw material containing polysiloxane, a fluorine-containing monomer, nano silicon dioxide and hollow microspheres; dynamic pressure circulation and ultrasonic-assisted pre-foaming are adopted; performing staged gradient foaming and curing; and carrying out vacuum post-treatment and plasma surface modification. According to the invention, accurate regulation and control of multi-scale pores are realized, air permeability, mechanical properties and hydrophilicity are significantly improved, heat insulation and high temperature resistance are accidentally improved, process efficiency is improved, by-product emission is reduced, and the method is suitable for the fields of aerospace, filtration and biomedicine.

The utility model relates to wafer plasma surface activation equipment, and belongs to the technical field of equipment for processing semiconductor components. According to the utility model, gas molecules in the chamber are effectively excited through a high-intensity magnetic field generated by the ICP coil, so that high-density and high-activity plasma is formed; the I CP reactor is arranged on the upper side of the activation chamber, the activation chamber and the I CP reactor are isolated through the insulating ceramic isolation plate, I CP electromagnetic induction can penetrate through the isolation plate, and the isolation plate not only ensures the leakproofness of the activation chamber, but also effectively isolates the high-temperature environment of the I CP reactor. The adverse effect of the high temperature in the I CP reactor on the activation chamber is prevented; the I CP coil is arranged between the inner cylinder and the outer cylinder, the heat dissipation fan is arranged on the outer cylinder, and the heat dissipation coil pipe is arranged in the activation chamber, so that the heat dissipation effect is improved, and the temperature in the activation chamber can be effectively reduced.

The invention discloses a preparation process of fiber aramid fiber with high electromagnetic shielding performance, which comprises the following steps: step 1, dissolving an aramid fiber polymer in concentrated sulfuric acid to form a spinning solution; step 2, adding a nano conductive material and a magnetic material into the spinning stock solution, and treating the mixed solution by adopting an ultrasonic-high-speed shearing synergistic dispersion technology for 30-60 minutes; step 3, extruding the mixed solution into a coagulating bath through a wet spinning process, and performing multi-stage stretching, washing and drying to obtain nascent fibers; 4, performing high-temperature heat treatment and plasma surface modification on the nascent fiber to enhance the continuity of the conductive network; and step 5, coating the surface of the fiber with a polydopamine-metal composite layer. The invention belongs to the technical field of high-performance fiber preparation, and particularly provides a preparation process of fiber aramid fiber with high electromagnetic shielding performance, which optimizes filler selection, a dispersion process and fiber structure design, is high in electromagnetic shielding effectiveness, is suitable for a lightweight environment, and is high in environmental adaptability.

The invention relates to the technical field of material surface engineering, and discloses a plastic surface treatment process to solve the problems that in the prior art, a plastic surface coating is poor in adhesive force and single in function, and a traditional treatment method is not environmentally friendly. The process sequentially comprises the following steps: pre-treating a base material, and obtaining a clean and stress-free base material through ultrasonic cleaning and thermodynamic stress elimination; performing low-temperature plasma surface activation, performing physical bombardment and chemical modification on the plastic surface by utilizing plasma of specific process gas in a vacuum environment, introducing a large number of active functional groups, and remarkably improving the surface energy; and preparing and applying the functional nano coating, namely forming firm covalent bonds by using the coupling agent in a coating solution containing functional nano particles and a coupling agent and the anchor points, so that the chemical coupling of the functional coating and the plastic substrate is realized.

The invention discloses a preparation method of a novel mixed metal oxide coating titanium electrode, and relates to the technical field of electrode preparation, the method comprises the following specific steps: titanium substrate pretreatment: a titanium plate is sequentially subjected to gradient polishing with 120-800-mesh abrasive paper, the polished titanium substrate is subjected to hydrochloric acid solution etching, argon plasma surface activation and drying treatment, and a titanium substrate is obtained; obtaining a clean substrate surface with proper roughness; through the low-temperature plasma treatment, pulsed bias magnetron sputtering and laser-induced atomic layer deposition (LA-ALD) combined technology, the binding force of the coating and the titanium substrate is remarkably improved, high-energy particles are used for bombarding the surface of the titanium substrate in the low-temperature plasma treatment, residual impurities are effectively removed, the surface roughness and active sites are increased, and the surface hardness of the titanium substrate is improved. In the pulsed bias magnetron sputtering process, the surface of the substrate is further cleaned through periodic ion bombardment, atomic diffusion and mixing between the coating and the substrate are promoted, a transition layer structure is formed, and therefore the binding force is greatly enhanced.

The invention discloses a medium-entropy (Zr, Ta, W) C coating and a preparation method and application thereof. The medium-entropy (Zr, Ta, W) C gradient coating is prepared on the surface of the titanium alloy or the iron-based alloy through the double-layer glow plasma surface metallurgy technology, and gradient temperature annealing treatment is conducted. The preparation method has the specific advantages that (1) the prepared coating is of a continuous gradient structure, good interface metallurgical bonding is formed between the coating and a matrix, the bonding force of the coating is not lower than 50 N, and the coating is not prone to cracking and stripping in the service process due to the high bonding strength; and (2) the hardness of the medium-entropy (Zr, Ta, W) C coating prepared by the method is 25-30 GPa, the fracture toughness is 4.0-5.0 MPa * m < 1 / 2 >, and the coating system has balanced hardness and toughness, so that the coating is endowed with excellent wear resistance. The prepared coating has excellent wear resistance and antifriction performance, and has wide application prospects in the field of wear-resistant protective coatings.

The invention belongs to the technical field of photovoltaic backboards, and particularly relates to a high-reflection integrally-formed backboard for a single-glass assembly and a preparation method thereof.The preparation method comprises the following steps that S1, a PET film base material is provided, plasma surface treatment is conducted, then polyurethane coating is coated on the two sides to form an outer-layer weather-proof fluorine coating and an inner-layer functional coating respectively, and the outer-layer weather-proof fluorine coating and the inner-layer functional coating are formed; a CPC backboard base material is obtained; s2, white high-reflection EVA granules are fused and plasticized, a white EVA adhesive film is obtained through extrusion of a hanger type T-shaped flat die head, then the white EVA adhesive film is compounded with the inner functional coating of the CPC backboard base material, and a firm complex without a definite physical interface is obtained through rolling; s3, cooling the composite body through at least two stages of cooling rollers to obtain a coiled material; and S4, the coiled material is irradiated, and the high-reflection integrally-formed backboard is obtained.

The invention relates to the technical field of lime manufacturing, and provides a process and a system for manufacturing high-purity lime. The process comprises the steps of raw material pretreatment, plasma surface pretreatment, segmented atmosphere calcination, sound wave reinforced mass transfer, heat energy comprehensive utilization and intelligent control, rapid cooling, flue gas treatment and finished product packaging. The system comprises a raw material pretreatment unit, a plasma surface pretreatment unit, a multi-section gradient atmosphere calcining kiln, a sound wave reinforced mass transfer system, a heat energy comprehensive utilization and intelligent control system, a carbon dioxide capturing and recycling unit and a finished product cooling and packaging unit. Through raw material deep purification, surface activation treatment, gradient calcination and atmosphere accurate control, sound wave mass transfer reinforcement, intelligent optimization regulation and control, rapid cooling and flue gas purification and resource recovery, the purity and the reaction activity of a calcium oxide product are synergistically improved, and the production energy consumption and pollutant emission are remarkably reduced; and high-efficiency, clean and resource production of the high-purity lime is realized.

The invention relates to the technical field of surface treatment, discloses a dust-free cleaning process for an AL meltallizing coating, and aims to overcome the defects of an existing cleaning process for the AL meltallizing coating in the aspects of removing particles in micro-pores and passivating tips prone to falling off. The process comprises the steps of ultrapure water pre-cleaning, supercritical fluid deep cleaning, plasma surface modification, high-purity inert gas microjet purging and high-temperature vacuum degassing and surface stabilization. By the adoption of the technical scheme, the cleanliness of the AL meltallizing coating can be remarkably improved, particles and organic pollutants in micro-pores can be thoroughly removed, tips prone to falling off are passivated, secondary pollution is avoided, the cleaning period is shortened, and the production yield of semiconductors and liquid crystal panel products and the equipment utilization rate are increased.

The invention discloses a battery positive electrode with low impedance and high liquid absorption performance and a preparation method thereof, and the preparation method comprises the following steps: slurry pretreatment is matched with coating parameters, the viscosity of the slurry is adjusted to 4000-6000 mPa.s, and the coating speed and the viscosity meet the relation V = K / eta; preheating and homogenizing, wherein infrared radiation heating and hot air circulation are adopted; step-by-step gradient drying, including high-temperature rapid drying, medium-temperature drying and low-temperature stable drying; annealing treatment; and plasma surface modification. Compared with the prior art, by scientifically matching coating parameters, accurately controlling the drying process and optimizing the surface characteristics, the prepared positive electrode has the advantages that the crack length density is smaller than or equal to 0.15%, the interface impedance is smaller than or equal to 10 omega.cm, the electrolyte contact angle is smaller than or equal to 15 degrees, and the positive electrode has the advantages of low impedance and high liquid absorption performance, so that the cycle life of the battery is effectively prolonged.

The invention discloses a regenerated slurry preparation method based on recycled ceramic casting membranes, and belongs to the technical field of ceramic slurry preparation, and the method comprises the following steps: S1, pretreatment, fine crushing and deep extraction, and supercritical CO2 fluid extraction after crushing treatment; s2, thermal degreasing and activation: step-by-step temperature control removal and surface modification step-by-step heating thermal degreasing: in the first stage, the temperature is 150-250 DEG C, and heat preservation is performed for 1-2 hours; in the second stage, the temperature is 300-400 DEG C, and heat preservation is conducted for 0.5 h; s3, a plasma surface activation process: putting the ceramic powder into low-temperature plasma treatment equipment, introducing a mixed gas of argon and oxygen as a working gas, and treating under the action of specific radio frequency or microwave power; s4, slurry reconstruction, precise formula and optimized dispersion gradient powder mixing, wherein regenerated ceramic powder and new ceramic powder are mixed; and constructing a dispersion system: adding a solvent and a composite dispersant, and carrying out dispersion ball milling.

The invention discloses a composite material liner and a production process thereof, and the production process comprises the following steps: carrying out plasma surface activation treatment on a foam substrate to obtain an activated foam substrate; the activated foam substrate and a polyester film are placed in ultraviolet irradiation equipment to be subjected to modified composite treatment, and a composite base material is obtained; performing line-by-line irradiation on the composite base material along a preset grid pattern based on a laser, forming a groove network structure on the surface of the composite base material, and obtaining a grid base material with grid identification lines; the grid base material is subjected to nanometer coating spraying treatment, and a coating base material is obtained; the coating base material is subjected to hot-pressing shaping treatment, and a semi-finished liner product is obtained; and the semi-finished liner is subjected to laser cutting treatment according to the preset size, and the composite liner is obtained. Through the integrated process design, the technical bottleneck that in the prior art, the surface structure machining precision is insufficient is remarkably overcome, and the applicability and reliability of the product in the electronic equipment industry, the automotive trim industry and the packaging industry are remarkably improved.

The invention relates to the technical field of composite material preparation, and discloses a high-load composite material telegraph pole and a pultrusion preparation method thereof.The method comprises the steps of fiber configuration, resin matrix preparation, dipping, preforming, pultrusion and aftertreatment. Wherein the proportion of fibers for direct yarn feeding accounts for a high proportion of the total mass of the fibers, the fibers are distributed in the longitudinal direction of a product, the longitudinal reinforcing effect of the telegraph pole is guaranteed, the loading capacity and mechanical strength of the product are improved, meanwhile, the tension of the fibers is controlled through a tension control system, the stability of the fibers before dipping is guaranteed, and a fiber reinforcing system is optimized; the functional additive is added, and the functional additive comprises nano silicon dioxide subjected to plasma surface treatment and a silane coupling agent, so that the uniformity and dispersity of a resin matrix are improved, the interface bonding of fibers and resin is enhanced, and the overall performance of the composite material is improved.

The invention discloses a preparation method of graphite for a large semiconductor, and belongs to the technical field of graphite for semiconductors. The method comprises the steps of raw material pretreatment, forming process, graphitization, purification and post-treatment, wherein needle coke and a carbon-based functional material are mixed, and a carbon-based dispersing agent is added under the action of a gradient magnetic field for dispersion to obtain a pretreated raw material; filling the mixture into a carbon-based mold, carrying out cold isostatic pressing molding through cooperation of gradient pressure and a gradient magnetic field, and absorbing stress through a carbon-based buffer material to obtain a molded green body; placing the green body in a large graphitization furnace, regulating and controlling a magnetic field in sections, introducing mixed gas, strengthening the reaction through a carbon-based catalytic material, and prolonging the reaction time of a core part by utilizing gas backflow to complete graphitization and purification; and finally, carrying out plasma surface activation, boron nitride coating deposition and annealing treatment to obtain a graphite product for a large semiconductor. The problems that the purity of a large green body is out of control, the impurity removal gradient difference is large and the stress is large can be effectively solved, and the product performance is excellent.

The invention discloses a production process of an anti-fog, mildew-proof and antibacterial plastic preservative film, and relates to the technical field of high polymer material processing. The preparation method comprises the following steps: S1, preparing matrix resin; s2, compounding functional raw materials; s3.1, preparing an anti-fog melt; s3.2, preparing a raw material gradient distribution blending melt; s4, performing multi-layer co-extrusion film blowing molding; and S5, plasma surface modification. According to the production process of the anti-fogging, mildew-proof and antibacterial plastic preservative film, the technical contradiction that the anti-fogging performance and the antibacterial performance of a traditional preservative film are difficult to coexist is solved; no solvent is added in the whole process, and the highest safety standard of food contact materials is met; according to the five-layer co-extrusion film blowing unit disclosed by the invention, the air ring and the mold core can be conveniently and quickly mounted and dismounted, the maintenance operation is convenient, and the production efficiency and the product quality are favorably improved.

The invention relates to the technical field of high-frequency transmission cables, in particular to a high-stable-phase cable preparation technology based on a graphene PTFE composite wrapping tape, and the technology comprises the steps: controlling a traction device to pull a to-be-wrapped body to a corresponding wrapping region; the wrapping tapes of the corresponding layers are correspondingly conveyed to the corresponding wrapping positions of the wrapping area respectively; respectively obtaining the thickness of a plurality of detection point positions of the high-stable-phase test cable and the width of a wrapping tape overlapping area so as to determine an expansion area; adjusting the distance between the guide wheels according to the overlapping proportion of the overlapping area and the expansion area of the wrapping tape, or adjusting the distance between the guide wheels and the to-be-wrapped body according to the expansion length, and adjusting the wrapping angle according to the area proportion of the layered expansion area; and sequentially performing plasma surface treatment and staged hot-pressing curing to output a finished product of the high-stable-phase cable. According to the invention, the accuracy of the wrapping process and the heat control capability are improved.

The invention discloses conductive silver paste doped with graphene powder and a preparation method of the conductive silver paste, and relates to the technical field of conductive silver paste. The method comprises the following steps: performing nitrogen doping on graphene by using plasma, introducing nitrogen atoms into graphene crystal lattices to form nitrogen-doped graphene, and introducing oxygen-containing functional groups on the surface of the graphene through a plasma surface modification technology to further improve the conductivity. The preparation method comprises the following steps: mixing an aniline monomer and an aminobenzoic acid monomer, carrying out in-situ polymerization on the surface of nitrogen-doped graphene to generate a polyaniline-aminobenzoic acid copolymer, and compounding a graphene-polyaniline material obtained by in-situ polymerization with carbon nanotubes to construct a three-dimensional conductive network. Secondly, the prepared three-dimensional filler is added into conductive silver paste, carboxyl in aminobenzoic acid is adsorbed and combined with silver particles through Van der Waals force, a stable interface structure is formed, the interface resistance is reduced, and the connectivity of a conductive network is enhanced. The prepared conductive silver paste has the effect of high conductivity.

The invention discloses a bifunctional hybrid insole with high elasticity and shock absorption and a preparation method of the hybrid insole, and relates to the field of insole manufacturing. According to the dual-function high-elasticity and shock-absorbing Hybrid insole and the preparation method thereof, the half sole area is made of a POE high-elasticity material, and through twin-screw extrusion molding and plasma surface treatment, high elasticity with the rebound rate being larger than or equal to 60% and the Shore hardness C being 55-65 is achieved; the heel area is made of a low-density microcellular foaming EVA shock absorption material, and a uniform structure with the pore diameter of 100-200 microns is obtained by accurately controlling foaming parameters. Through material innovation, structure optimization and process precise control, the leap-type upgrade of the insole function from single buffering to biomechanical adaptation is realized; the technical key point is that the performance coordination of the partitioned composite material, the process breakthrough of the interface strength and the dynamic mechanical transition design, and the actual effect is that the movement efficiency is improved, the joint protection is enhanced, and the service life of the product is prolonged.

The present invention discloses a device and method for low-temperature and atmospheric-pressure plasma surface hydrophilic modification based on a carbon dioxide atmosphere. The device includes a carbon dioxide gas supply unit, a plasma treatment chamber, and a conveyor belt. The plasma treatment chamber includes a generation chamber and a post-reaction chamber. A positive electrode and a negative electrode are provided in the generation chamber. The positive electrode is electrically connected to an external control power supply, and the negative electrode is grounded. The carbon dioxide gas supply unit is located at the top of the plasma treatment chamber. The bottom of the carbon dioxide gas supply unit is connected to a gas pipe, and the gas pipe extends to the bottom of the generation chamber. A control switch is provided at the connection between the carbon dioxide gas supply unit and the gas pipe, and the control switch is electrically connected to a pressure sensor, which is located at the top of the generation chamber. The conveyor belt is of a U-shaped structure and passes through the generation chamber and the post-reaction chamber in sequence. The positive electrode is located above the conveyor belt, and the negative electrode is located below the conveyor belt. The device and method of the invention can continuously prepare modified films.

The application discloses a coating structure of a valve rod of a nuclear power plant, a valve rod and a preparation method thereof, and the coating structure comprises a transition layer and a hydrogen-free diamond layer which are sequentially arranged from inside to outside, the microstructure of the transition layer is nanotwin, and the coating structure is uniformly covered on the surface of the valve rod. The preparation method comprises the following steps: after the valve rod is cleaned, the valve rod is subjected to plasma surface activation, the transition layer and the hydrogen-free diamond layer are sequentially deposited, and the valve rod is obtained. The coating structure of the valve rod of the nuclear power plant, the valve rod and the preparation method thereof effectively improve the hardness of the surface of the valve rod, reduce the friction loss of the valve rod, make the valve rod have good wear resistance and a reduced friction coefficient, improve the work efficiency, and further improve the service life of the valve rod, can meet the technical performance requirements of the valve rod on impact toughness, corrosion resistance and wear resistance in a high-temperature and high-pressure water environment, and effectively reduce the production cost.

The utility model relates to the technical field of shield cutter production and processing, in particular to a plasma cladding diamond particle planting inserted shield cutter ring which comprises a cutter ring body, a plasma cladding wear-resistant layer, diamond particles planted in the wear-resistant layer and hard alloy ball nails. A ball nail inlaying groove is machined in the outer circle position of the cutter ring body, and the lower portion of the hard alloy ball nail is inlaid in the ball nail inlaying groove in the outer circle of the cutter ring body. Wear-resistant layer grooves are formed in the cutter ring body between the adjacent ball nail embedding grooves, and wear-resistant layers are cladded in the wear-resistant layer grooves; diamond particles are planted when the wear-resistant layer is subjected to plasma welding, so that the wear-resistant layer has certain toughness, the wear resistance of the diamond particles is utilized, and the service life of the wear-resistant layer is prolonged; meanwhile, the wear-resistant layer groove is additionally formed between the two hard alloy ball nails of the cutter ring body, so that the wear resistance of the cutter ring body is improved.

The invention belongs to the field of automobile interior manufacturing, and discloses an automobile interior real wood surface digital printing process which comprises the following steps: S1, preparing a base material: selecting a wood veneer of 0.3-0.6 mm, cutting the wood veneer, polishing, spraying water for humidifying and mechanically leveling; the surface of the wood veneer is colored and sprayed with a transparent resin protection layer, then the surface of the protection layer is treated through a plasma surface treatment technology, and the surface energy and the chemical activity of the protection layer are improved; s3, digital printing: coating the surface of the treated protective layer with a bottom coating liquid, printing a pattern by using digital jet printing equipment, and then carrying out UV curing; s4, interior trim part forming, wherein the printed and cured wood veneer is attached to the automobile interior trim plastic base material at the temperature of 55-60 DEG C; and S5, surface layer protection: applying transparent protective finish paint on the surface of the laminated product. The process can solve the problems that the printing definition of an ink layer on the real wood surface of the existing automotive trim is low, and the ink layer is easy to peel, wrinkle and bloom in the processing or using process.