15results about How to "Barrier erosion" patented technology

This invention relates to the field of insulating materials for porous copper foil preparation, and particularly to an insulating material for porous copper foil preparation and its preparation method, as well as a method for preparing porous copper foil. The preparation method includes the following steps: perforating a cathode plate to obtain a cathode plate with multiple blind holes; filling the blind holes with an insulating material for porous copper foil preparation, and curing it to obtain a pretreated cathode plate; the raw materials for the insulating material are: resin, reactive diluent, thixotropic agent, leveling agent, polymerization inhibitor, and photoinitiator. The pretreated cathode plate is used as the cathode and placed in an electrolyte for electrodeposition to obtain porous copper foil. When preparing porous copper foil with the insulating material, the filling material in the blind holes can withstand more than 80 electroplating cycles without peeling off, indicating that the insulating material for porous copper foil preparation possesses excellent adhesion and electrolyte environment durability, enabling a single-filled cathode to support stable electrodeposition over an ultra-long period, significantly extending its effective service life.

The application discloses a kind of corrosion-resistant shielding cover, be provided with first shielding cover and second shielding cover, the first shielding cover and second shielding cover between being provided with assembly component, the first shielding cover is provided with first shielding space, the second shielding cover is provided with second shielding space, the first shielding space and the second shielding space for electrical component shielding high-voltage arc are provided with partition, both ensure the structural stability under high pressure environment, and simplify field installation process, partition is guided assembly by hollow groove and adaptive groove, precise positioning is realized, its lifting jack is convenient for operator to operate dismounting, maintenance efficiency is significantly improved, the setting of assembly flange and locking bolt enhances the adaptability with other electrical components, and the design of reinforcing plate embedding assembly side groove is targetedly strengthened local structural strength, effectively resist high-voltage arc impact.

The application belongs to the technical field of high polymer materials, and provides a persistent slow-release aromatic master particle and a preparation method thereof. The application obtains essence powder by mixing and aging aromatic substances and a slow-release agent; the essence powder, dry carrier resin, dry dispersing agent, plasticizer and compounded antioxidant are mixed, and low-temperature extrusion, cooling and granulation are sequentially performed to obtain the persistent slow-release aromatic master particle. The method adopts the slow-release agent to physically adsorb and anchor the liquid aromatic substances, and forms stable essence powder; during melt blending, the essence powder is wrapped by the carrier resin and fixed in the polymer network, and the release of the essence is delayed through the physical barrier effect, and the fragrance retention time is significantly prolonged. Meanwhile, the method adopts the low-temperature extrusion process to greatly reduce the heat loss and metamorphic risk of the aromatic substances in the processing process, ensures the purity of the fragrance type and the high retention rate of the effective components, and the obtained aromatic master particle has good processing adaptability, long-acting slow-release performance and safety.

The invention discloses a corrosion-resistant refractory material for a waste liquid furnace and a preparation method of the corrosion-resistant refractory material, the refractory material is composed of aggregate, matrix powder, a binding agent and a process additive, the aggregate comprises tabular corundum particles, fused zirconia corundum particles and silicon carbide fine powder, the matrix powder comprises alpha-alumina micro powder, zirconite ultra-fine powder, metal silicon powder and yttrium-stabilized zirconia nano powder, the binding agent is a compound system of phenolic resin and silica sol, and the process additive is composed of a polycarboxylate dispersant and a lignosulfonate plasticizer; the preparation method comprises the steps of multi-stage mulling, vibration pressure forming and controllable atmosphere segmented sintering, and a compact and continuous ZrC-ZrO2 nano-composite coating is generated in situ at pores and grain boundaries in the material by carrying out a high-temperature reaction in a specific weak reducing atmosphere. The technical problem that corrosion resistance and thermal shock resistance of a traditional refractory material are difficult to consider at the same time is effectively solved, and the service life of the waste liquid furnace lining is remarkably prolonged.

The utility model provides a vertical stock bin with good sealing performance, and relates to the technical field of stock bins, the vertical stock bin comprises a main stock bin, inner bin frames and side annular belts, the inner bin frames are arranged on the inner side of the main stock bin in the vertical direction at intervals, the side annular belts are arranged on the two sides of each inner bin frame, fixed inner supporting frames are arranged on the inner side of the main stock bin in the vertical direction at intervals, and the side annular belts are arranged on the inner supporting frames. Front closed cabin doors are arrayed in the vertical direction of the front portion of the main bin at intervals, rear closed cabin doors are arrayed in the vertical direction of the rear portion of the main bin at intervals, the upper ends of the front closed cabin doors are rotationally connected with the main bin in a matched mode through rotating shafts, and the lower portions of the rear closed cabin doors are rotationally connected with the main bin in a matched mode through hinges. The front closed cabin door and the rear closed cabin door are used for discharging and feeding respectively, physical separation of feeding and discharging is achieved, the interference problem of bidirectional material flowing is avoided, and the problems that a feeding port and a discharging port of the stock bin are not effectively separated, and mutual interference is prone to occurring in feeding and discharging are solved.

The application relates to the technical field of traffic safety, in particular to a high-weather-resistance reflective film and a manufacturing method thereof. The high-weather-resistance reflective film comprises a PET film, a reflective adhesive layer coated on the surface of the PET film, and a silicone coating layer coated on the surface of the adhesive layer; the reflective adhesive layer is formed by uniformly scattering glass beads on the surface of the PET film after the adhesive material is coated on the surface of the PET film; the raw material of the adhesive material comprises, by mass fraction, 50-150 parts of a hydroxyl-containing acrylate resin, 5-12 parts of an IPDI prepolymer, 1-2 parts of UV329 ultraviolet absorber, and 0.5-1.5 parts of anti-aging agent 1076. The reflective film has excellent self-cleaning performance, good reflectivity, long-term stable weather resistance, can effectively reflect incident light, effectively protects the reflective glass beads, can maintain the performance for a long time under various environments and conditions, and is suitable for being used as a traffic sign.

The application provides a piezochromic grounding shielding assembly for a plant protection unmanned aerial vehicle peristaltic pump and a monitoring method thereof, and relates to the technical field of unmanned aerial vehicles. The shielding assembly comprises a multilayer composite structure of a conductive metal substrate layer, a piezochromic functional layer, a transparent conductive protective layer and an anti-corrosion sealing layer. The piezochromic functional layer adopts a polydiacetylene-silver nanowire composite system and undergoes reversible blue-red phase transition under the action of grounding contact pressure. The monitoring method comprises the following steps: periodically collecting images of the color-changing area by an onboard miniature CMOS camera, extracting chromaticity parameters in the CIE Lab color space, establishing a chromaticity-grounding impedance mapping model, realizing four-level grading evaluation of grounding quality, and reporting in real time to a ground station through a flight control system. The application simultaneously provides passive visual indication and active digital monitoring dual functions without increasing the wiring and power supply burden, and significantly improves the reliability and maintainability of the shielding system of the plant protection unmanned aerial vehicle peristaltic pump.

This invention discloses a nano-solid-state hydrogen storage material and its preparation method, belonging to the field of new energy materials technology. The nano-solid-state hydrogen storage material has a core-shell structure, comprising a nano-magnesium-based active phase core and a functionalized porous carbon material outer shell; the core contains in-situ grown multi-metal nanocatalyst particles; the outer shell is doped with non-metallic elements and loaded with metal-organic framework derivative nanoparticles; the core-shell structure is dispersed in a three-dimensional interconnected carbon-based network framework. The preparation method includes: preparing a multi-metal-organic framework precursor solution; synthesizing multi-metal-organic framework nanoparticles using a solvothermal method; chemically combining with a magnesium source and a nickel source to obtain a precursor composite; carbonization treatment to obtain a porous carbon-coated multi-metal nanocatalyst@magnesium-based composite material; constructing a three-dimensional network framework by combining with a functionalized carbon source and metal-organic framework derivatives; and high-pressure hydrogenation treatment. The material of this invention exhibits a low hydrogen desorption temperature, rapid hydrogen absorption and desorption kinetics, and excellent cycle stability.

According to the technical scheme, the heat preservation type high-temperature water vapor pipe sleeve with the anti-tearing function is characterized by comprising high-strength fiber cloth, and a metal net is fixed to the inner circle wall of the high-strength fiber cloth in an adhering mode; the heat preservation assembly is arranged on one side of the metal net and used for heat preservation, the high-strength fiber cloth has excellent strength and wear resistance, the overall tear resistance is further enhanced by adding the metal net, and therefore when the pipe sleeve is subjected to long-term scouring of high-temperature water vapor and possible mechanical damage, the heat preservation assembly can be prevented from being damaged; the integrity and stability of the structure can be kept, the high-strength fiber cloth and the metal net are combined, so that the pipe sleeve can bear higher temperature and pressure, the service life of the pipe sleeve is prolonged, the main function of the heat preservation assembly is to reduce heat loss of water vapor in the pipeline transmission process, the transmission efficiency of the water vapor can be improved, and the service life of the pipe sleeve is prolonged. And the energy cost can be saved.

The invention discloses a rapid reinforcing method for bridge deck pavement based on a UHPC-steel mesh composite layer, and belongs to the technical field of bridge engineering reinforcement. According to the method, a scientific disease grading evaluation system is combined with key part correlation analysis to optimize the reinforcement range, reinforcement requirements of different disease areas are accurately matched, and combined with base surface treatment, steel mesh positioning and UHPC material modification processes, collaborative stress of a composite layer, an original base layer and a steel mesh and composite application of the UHPC material and modified steel fibers are enhanced, so that the comprehensive performance of the composite layer is improved. The impermeability, corrosion resistance and mechanical property uniformity of the composite layer are improved, the service cycle of the bridge deck is prolonged, and the bearing performance and damage resistance of the bridge deck are remarkably improved; and meanwhile, the layered pouring and adaptive vibrating technology is combined with the steam rapid curing technology, the construction and curing period is greatly shortened, interference to traffic passing is reduced, the later repair rate is reduced through the precise detection and control technology, the maintenance investment is reduced, and balance of the reinforcing effect and economic benefits is achieved.

The invention discloses an unmanned aerial vehicle surveying device for surveying and mapping geographic information, and belongs to the field of unmanned aerial vehicle surveying. Comprising an unmanned aerial vehicle body, and a monitoring mechanism is arranged at the bottom of the unmanned aerial vehicle body; a plurality of supporting mechanisms are arranged at the bottom of the unmanned aerial vehicle body and located on the outer side of the monitoring mechanism. A floating mechanism is arranged between the two supporting mechanisms which are opposite front and back; the monitoring mechanism comprises a monitoring camera, and the top of the monitoring camera is in threaded installation with the bottom of the unmanned aerial vehicle body through a bolt; a guide rail is arranged on the left side of the monitoring camera; in order to solve the problem that the surveying and mapping camera is exposed for a long time, an openable and closable closed protection structure is additionally arranged, the camera can be completely closed during non-surveying and mapping operation, dust, water vapor, chippings and other sundries are effectively prevented from adhering to or eroding a lens, the lens abrasion and fouling probability is greatly reduced, the high-definition precision of aerial survey images is guaranteed, the service life of the camera is prolonged, and the working efficiency is improved. The equipment maintenance cost is reduced.

This utility model discloses a cylindrical light source device for detecting internal defects in oil drums, comprising a coaxially connected hollow tube I and a hollow tube II. Hollow tube II is surrounded by an LED light panel and fitted with an optical diffuser tube. Industrial cameras with protective covers are symmetrically mounted at both ends. Modular assembly is achieved through hollow tube fixing components and diffuser tube fixing plates. The detection head fixing component is connected to an external lifting mechanism. This device can penetrate deep into the inspection port of the oil drum, achieving shadowless illumination using the diffuser tube. The dual cameras work together to complete 360° panoramic imaging, significantly improving the defect detection rate in confined spaces.

This invention provides a sustained-release microcapsule and its preparation method. The sustained-release microcapsule comprises: a porous carrier core; an active ingredient loaded within the pores of the porous carrier core; and a bilayer membrane structure covering the outer layer of the porous carrier core. The bilayer membrane structure includes an inner membrane and an outer membrane, with the inner membrane located between the porous carrier core and the outer membrane. The inner membrane is a pH-responsive protective layer that maintains structural stability in acidic environments and swells and disintegrates in weakly alkaline environments. The outer membrane is a flavor-regulating layer for the sustained-release flavor substances. The porous carrier core of this invention provides a large specific surface area and pore structure, effectively solving the problems of easy oxidation and stratification of the active ingredient. The inner membrane protects the active ingredient from degradation in the acidic environment of the stomach and rapidly swells and disintegrates in the weakly alkaline environment of the small intestine, significantly improving bioavailability. The outer membrane improves the palatability of the product.

The application provides a high-temperature-resistant corrosion inhibitor suitable for various corrosion medium systems and belongs to the technical field of corrosion inhibitors. The corrosion inhibitor is composed of a high-temperature-resistant corrosion inhibitor main agent, a synergistic corrosion inhibitor, a surfactant and a solvent; the high-temperature-resistant corrosion inhibitor main agent is a 4'-tert-butyl-4-chlorobutyryl benzene modified bimolecular imidazoline quaternary ammonium salt compound; the synergistic corrosion inhibitor is a Mannich base compound; the surfactant is a commercially available fatty alcohol polyoxyethylene ether AEO-20 or nonylphenol polyoxyethylene ether TX-8; and the solvent is deionized water. The high-temperature-resistant corrosion inhibitor can inhibit high-temperature corrosion in various corrosion medium systems, reduce the risk of equipment damage and material leakage, and prolong the operation cycle of the device. Meanwhile, the high-temperature-resistant corrosion inhibitor does not contain harmful elements such as phosphorus to the environment, and does not affect the normal operation of the device and the quality of chemical products.

The invention relates to the technical field of grinding tool manufacturing, and discloses a high-layering-resistance grinding non-woven fabric which is prepared from pre-reaction ATBN modified phenolic resin, brown fused alumina grinding materials, alcoholysis-resistant titanate coupling agents, hydrophobic fumed silica, polyvinyl butyral and mixed solvents. Wherein the resin is of an interpenetrating network structure formed by pre-reaction grafting of amino-terminated liquid nitrile rubber and phenolic resin. The preparation method of the high-layering-resistance grinding non-woven fabric comprises the steps of PVB premixed liquid preparation, filler modification and dispersion, resin compounding, slurry blending, impregnation programmed heating curing and the like. By constructing a resin interpenetrating network structure and cooperating with interface synergistic modification, the fracture toughness of a binding agent layer and the holding force of the binding agent layer to the abrasive are improved, and the technical problems that a traditional phenolic aldehyde-based abrasive material is large in brittleness and prone to layering and sand falling are effectively solved.