198results about How to "Isolated contact" patented technology

The invention discloses an aluminum-plastic composite panel with a fireproof structure, and relates to the technical field of aluminum-plastic composite panels, the aluminum-plastic composite panel comprises a fireproof layer, and a top aluminum plate mounting plate is mounted at the bottom of the fireproof layer. Then, the heat is transferred to a heat-conducting metal conduction sheet plate and then transferred to a wire fixing heat-conducting end, so that the temperature is rapidly increased, the wire fixing heat-conducting end transfers heat to a polyethylene fracture node, so that the polyethylene fracture node is melted and fractured, a polypropylene fiber connecting wire ring losing support also melts, a limiting hook is released, and a needling trigger piece rapidly punctures a flame-retardant gas storage device; the flame-retardant gas is released, and the flame-retardant gas is quickly diffused to the periphery of the flame along with the quick release of the flame-retardant gas to form a protective layer, so that the contact between the flame and surrounding combustible materials is effectively isolated, and further spreading of the fire behavior is slowed down or even stopped.

The invention provides a high-precision patterning method of a perovskite thin film, and the method comprises the following steps: S1, adding a polymer and a perovskite precursor into a solvent, and carrying out heating and stirring to obtain a perovskite precursor solution; s2, coating the perovskite precursor solution on a substrate to obtain a perovskite precursor thin film; s3, annealing the perovskite precursor thin film to obtain a perovskite thin film; and S4, processing the perovskite thin film by using a femtosecond laser direct writing technology to obtain a high-precision patterned perovskite thin film. According to the method, high-precision laser ablation patterning is realized in a specified area on the perovskite thin film by utilizing the ultrahigh peak intensity of femtosecond laser and combining the digital processing characteristic of a laser direct writing system, the minimum characteristic size can reach 80 nm and is about lambda / 10 of an exposure source, and the optical diffraction limit is broken, which cannot be realized by other patterning technologies.

The invention provides a control method, device and system of an excrement cleaning system. Relates to the technical field of pet supplies. The control method comprises the following steps: determining a current state through a weighing sensing module and an infrared sensing module; if the current state is a defecation completion state, a screening and cleaning process is executed; the opening of the connected garbage bag is opened and corresponds to the position of the discharge port of the device; and after the screening and cleaning process is finished, the opening of the garbage bag for receiving the excrement is sealed through a sealing device. According to the control method of the excrement cleaning system, the excrement cleaning efficiency is improved through the automation technology, it is ensured that excrement directly falls into the garbage bag, environmental pollution and odor emission are reduced, and the air quality and the living comfort are improved. The intelligent control reduces the health risk and the maintenance cost, and improves the user satisfaction.

The utility model discloses a fluoroplastic insulating high-temperature-resistant fireproof cable, which comprises a cable core, the cable core comprises eight wire cores which are annularly distributed at equal intervals, each wire core is composed of an inner sheath and a conductor, a composite insulating outer layer is wrapped outside the cable core, the composite insulating outer layer is composed of a contact layer, a buffer layer and a reinforcing layer, and the contact layer is wrapped outside the buffer layer. A composite high-temperature-resistant layer is arranged outside the composite insulating outer layer, the composite high-temperature-resistant layer is composed of a high-temperature-resistant base material, a heat reflecting layer and a heat-resistant protective layer, and the composite high-temperature-resistant layer is wrapped with an outer sheath. The problems of cable stability, flame-retardant and fireproof performance, electrical performance, chemical corrosion resistance and large-current transmission capability in a high-temperature environment are solved.

The invention relates to the technical field of batteries, in particular to a surface modification method of a positive electrode. The surface modification method of the positive electrode provided by the invention comprises the following steps that an aluminum source, a carbon nano tube and the positive electrode are mixed and calcined, the surface-modified positive electrode is obtained, the addition amount of the aluminum source is 300 ppm to 900 ppm, and the addition amount of the carbon nano tube is 300 ppm to 900 ppm according to the mass of the positive electrode. The surface of the positive electrode material is modified by coating the positive electrode material with the carbon nanotubes and the aluminum source, on one hand, contact between the positive electrode material and an electrolyte can be isolated to a great extent, and the cycle performance of the material is improved, and on the other hand, the mixture formed by the carbon nanotubes and the aluminum source has good rapid ion and electron transmission performance, and has good electrochemical performance. The migration rate of lithium ions can be improved, the direct-current resistance of the positive electrode material can be reduced, and meanwhile, the increase of the direct-current resistance in the circulation process is inhibited.

The invention provides a composite connection method for thick titanium alloy plates, and belongs to the technical field of metal material welding and additive manufacturing. According to the technical scheme, the method comprises the steps that symmetrical X-shaped grooves are machined in thick plate titanium alloy workpieces to be connected; a laser-electric arc hybrid welding system is adopted for conducting double-face bottoming welding on the X-shaped groove, so that a double-face bottoming welding seam is formed; and a powder feeding type laser cladding system is adopted, and multi-layer and multi-channel additive filling is conducted in the X-shaped groove above the double-face bottoming welding seam. According to the method, efficient laser-electric arc composite bottoming and low-heat-input laser cladding additive filling are separated, high-quality penetration of the root is guaranteed firstly, then welding deformation and residual stress are remarkably reduced through low-heat-input filling, the microstructure of a filling area is optimized, and therefore a welded joint with excellent comprehensive performance is obtained.

The utility model provides a forging clamping jaw for forging workpieces, which comprises a clamping jaw transmission base and a clamping jaw thrust driving piece, the clamping jaw thrust driving piece is mounted on the clamping jaw transmission base, and the clamping jaw transmission base is fixedly mounted on a mechanical arm; according to the utility model, when the two clamping jaws are driven to clamp a forging piece, the rack can generate an independent external pushing force which can also be applied to the forging piece, so that the friction force between the clamping jaws and the forging piece is increased, and the forging piece can be isolated from a main body structure through the generation of the pushing force, so that the forging piece can be prevented from being contacted with the main body structure; the high temperature of the forging part is prevented from being quickly transferred to the internal structure of the forging part, the influence of the high temperature on the strength of the internal structure is reduced, the clamping effect of the forging part can be conveniently guaranteed, the overall high temperature resistance is improved, and the service life is prolonged.

The invention discloses a welding process control method for a W-shaped structure of a light aviation radiator. The welding process control method comprises the following steps that a gas collecting hood, a connector pipe nozzle, a corrugated plate and a barrel are subjected to positioned welding; the inner cavity of the corrugated plate and the inner cavity of the gas collecting hood are sealed; high-purity argon is introduced from the position of a connector pipe nozzle, an argon detector is connected to the far end of the corrugated plate to detect the purity of argon in an inner cavity of the corrugated plate, a welding gun dragging cover is placed at a weld joint after the purity reaches the standard, then a transparent ceramic nozzle is installed on one end face of the welding gun dragging cover, and a gas blocking and heat absorbing tool is installed on the corrugated plate; in addition, argon is introduced to protect the welding seam area on the back face of the barrel; welding parameters are adjusted, welding of the welding seam of the W-shaped structure is carried out, and after welding is finished, welding is stopped for 15 seconds or above, and various protection tools can be disassembled. Through the control method, the material embrittlement problem in the welding process is solved, and the product stability is improved.

The invention relates to the technical field of solar cells, and particularly discloses a perovskite cell packaging method, a perovskite cell packaging structure and a perovskite solar thin film cell module. The invention discloses a perovskite cell packaging method. The method comprises the following steps: S1, carrying out first P4 laser scribing and edge cleaning on a perovskite cell core structure; s2, depositing a water vapor barrier layer on the perovskite cell core structure for first packaging, and after packaging is completed, performing laser scribing; s3, carrying out secondary laser scribing and edge cleaning; and step S4, covering the water vapor barrier layer with an adhesive film for second packaging, and after packaging is completed, covering back plate glass to obtain the perovskite battery assembly. The invention provides a packaging method of a perovskite cell, which can enable the perovskite cell to have a multi-layer packaging structure, effectively improves the sealing performance of the edge of the cell, and solves the problem that the stability of the cell is reduced due to the fact that an existing perovskite cell is easy to be invaded by water and oxygen due to poor sealing performance of the edge.

The invention belongs to the technical field of sodium ion batteries, and particularly relates to a preparation method of a high-entropy sodium ion positive electrode material coated with nanoscale oxides, which comprises the following steps: (1) mixing a metal salt solution, a precipitator solution and a complexing agent solution, controlling the pH value of the reaction solution to be 9-11.5, and carrying out coprecipitation reaction to obtain a precursor solution; (2) aging, filtering, washing, drying and demagnetizing the precursor solution to obtain precursor powder; and (3) uniformly mixing the precursor powder with sodium salt and doped salt, calcining, taking out the molten material in the cooling process, directly quenching, and cooling to obtain the high-entropy O3 type positive electrode material, and (4) mixing the high-entropy O3 type positive electrode material with a nanoscale oxide, and calcining to obtain the nanoscale oxide coated high-entropy O3 type positive electrode material. The invention also provides application of the sodium ion positive electrode material. The sodium ion positive electrode material prepared by the method disclosed by the invention is high in stability and good in circularity in air.

The invention discloses a large-size bonding method for multi-stage sequential TiAl single crystals, and belongs to the technical field of metal alloy welding. The invention provides a parallel lamella bonding method of a large-size multi-stage sequential TiAl single crystal. The method comprises the following steps: the surface roughness of a sample reaches below 200nm; and carrying out parallel lamellar orientation bonding by adjusting temperature, pressure and heat preservation time under a high vacuum degree. The invention also provides an atomic-scale diffusion bonding method of the large-size multi-stage sequential TiAl single crystal, which comprises the following steps of: after the parallel lamellae are subjected to oriented bonding, repeatedly placing under a high vacuum degree, and carrying out vertical lamellar oriented bonding by adjusting the temperature, the pressure and the heat preservation time, so as to obtain the large-size multi-stage sequential TiAl single crystal after the parallel lamellae and the vertical lamellae are bonded. According to the method, atomic-scale diffusion bonding of the large-size TiAl single crystal is achieved, and the size requirement of practical application is met. The operation method is simple, energy-saving and environment-friendly, and can be used for bonding in batches.

The invention discloses wind-proof and sand-fixing geotechnical cloth based on an EICP technology and a preparation method. The wind-proof and sand-fixing geotechnical cloth is composed of two layers of needle-punched geotechnical cloth, a supply system arranged between the two layers of needle-punched geotechnical cloth and a water retention film arranged on the outer surfaces of the needle-punched geotechnical cloth. The needle-punched geotextile takes degradable plant fibers as raw materials, and is processed and formed by a needle punching process; the replenishment system comprises a main replenishment pipe, a replenishment pipe joint, a branch replenishment pipe, a butterfly-shaped joint and a replenishment plate; the branch supply pipe comprises a plurality of branch supply pipe sections arranged in the axial direction of the branch supply pipe, the branch supply pipe sections are connected with the main supply pipe through supply pipe connectors, and every two adjacent branch supply pipe sections are connected through a butterfly connector. The supply plate extends out of the cavity of the butterfly joint along the two radial ends of the branch supply pipe; a gap is formed between the part, located in the cavity, of the supply plate and the inner wall of the butterfly-shaped connector; the water retention film is made of degradable plastic and is coated on the outer surface of the windproof and sand-fixing geotextile through a hot-dip coating process.

The invention provides a composite material pipeline capable of preventing hydrogen leakage, and belongs to the technical field of pipeline preparation. The composite material pipeline comprises an inner pipe layer, a composite gas barrier layer located on the outer surface of the inner pipe layer, a high-temperature-resistant copolymer layer located on the outer surface of the composite gas barrier layer, a reinforcing layer located on the outer surface of the high-temperature-resistant copolymer layer and a corrosion-resistant polymer protection layer located on the outer surface of the reinforcing layer. The composite gas barrier layer is of a multi-layer co-extrusion molding structure and comprises a blending modified PVDC layer, a blending modified EVOH layer and a blending modified PA layer from inside to outside. By means of the multi-layer composite structure, excellent material selection and an optimized production process, the composite material pipeline for preventing hydrogen leakage has the characteristics of excellent gas blocking performance, high strength, corrosion resistance, high temperature resistance, good flexibility and the like, and can effectively solve the problems of hydrogen embrittlement, leakage and corrosion of a traditional steel pipe in the hydrogen conveying process; the method has remarkable technical advantages and wide application prospects.

The utility model discloses an anti-corrosion electronic tag, and relates to the technical field of tags, the anti-corrosion electronic tag comprises an outer frame and an isolation plate, the isolation plate is located in the middle of the inner part of the outer frame, the outer frame is made of a metal material, the isolation plate is made of a heat insulation material, and the outer side of the outer frame is provided with a sealed transparent material; according to the anti-corrosion electronic tag, a cavity is formed between the isolation plate and the solar cell panel, the cavity is filled with the packaging adhesive, the main function of the packaging adhesive is to wrap and protect the circuit board in all directions, corrosive substances are effectively isolated from being in contact with parts of the circuit board, and the anti-corrosion electronic tag has the advantages that the anti-corrosion electronic tag is simple in structure and convenient to use, and the service life of the anti-corrosion electronic tag is prolonged. In addition, the heat conduction performance of the packaging adhesive is excellent, heat generated in the working process of the circuit board can be effectively conducted into the outer frame, then the heat dissipation effect of the circuit board is promoted, and stable operation of the device is ensured.

The utility model relates to the field of beverage bottle lid discloses a beverage bottle lid with press trigger suction accessory falling function, including the cover, the top of cover is provided with the false touch press assembly, the upper portion of cover is provided with the installation mouth, the top of cover is connected with the limit lug of fixed connection and the number is multiple, the false touch press assembly includes the protection cover, the bottom of protection cover is fixedly connected with the control pipe, the inside movable joint of control pipe has the press bar, the outside of control pipe is provided with the auxiliary pipe, the outside fixed connection of auxiliary pipe has the fixed ring, the fixed ring is fixedly connected with the inner wall of installation mouth. In the utility model, through setting false touch press assembly and setting limit lug and limit recess etc. between the cooperation of parts, the bottle cap can be effectively protected, the false trigger of bottle cap in the process of transportation or selling can be effectively avoided, is more practical.

The utility model provides an electric heating type humidifier with an anti-scale water level monitoring function, a water tank comprises a water tank body and a steam pipeline, a heating chamber is arranged in the water tank body and used for heating a water body so as to generate steam, and the steam pipeline is used for outputting the steam outwards; the heating assembly is arranged in the heating chamber and comprises a plurality of stainless steel heating pipe fittings used for heating a water body to generate steam, the water level monitoring assembly comprises a first probe and a second probe, and the first probe and the second probe are arranged in a staggered mode and used for monitoring different liquid level height information of the water body; an isolation sleeve is arranged outside the first probe and the second probe in a sleeving mode, and a filter screen is arranged at the bottom of the isolation sleeve. According to the water level detection device, even if water scale existing in the humidifier generates foam in the water boiling process, the isolation sleeve can effectively isolate the foam from being in contact with the probe, so that the probe can accurately detect the height of the water level, and the monitoring precision of the water level detection device on the water level is greatly improved.

The invention relates to the technical field of thermal transfer carbon ribbons, and discloses a high-efficiency thermal transfer carbon ribbon back coating adhesive and a preparation method thereof. Tetrakis(hydroxymethyl)phosphonium chloride, vinyl trichlorosilane and 2,5-bis(trifluoromethyl)terephthalic acid are used as raw materials to synthesize a diene fluorine-containing caged siloxane monomer, and the monomer is polymerized with pentaerythritol tetraacrylate to form a cross-linked organic silicon acrylic copolymer with a hyperbranched cross-linked network structure, which replaces a traditional organic silicon resin mixture. The copolymer is diluted with a single solvent toluene to avoid the use of a multi-component mixed solvent, greatly reduces VOC emissions, and can be recycled. The carbon ribbon back coating adhesive prepared by the invention has good heat resistance and wear resistance, smooth printing, good bonding performance, can enhance heat conduction and lubrication in a printing process, effectively eliminates the risk of static electricity generated in an actual application process, has a good flame retardant effect, and avoids safety hazards.

The utility model belongs to the technical field of accident oil pools, and discloses an accident oil pool of a mountain photovoltaic power generation box-type transformer, which comprises an oil storage pool, an oil inlet and an inspection opening which are integrally formed, the oil storage pool is a cavity with a preset volume, and a pit protruding downwards is formed in the bottom of the oil storage pool; the oil inlet is formed in the side surface of the top of the oil storage pool and is communicated with an oil outlet of the transformer; the inspection opening is formed in the upper end of the oil storage pool and provided with an openable cover body. Compared with a traditional bricking or concrete cast-in-place manufacturing mode, the oil pool is integrally formed, engineering prefabrication and on-site hoisting can be achieved, transportation and installation are easy, the construction difficulty in mountain areas can be greatly lowered, the construction period is shortened, the oil pool can be rapidly put into use when needed, and good economic benefits and social benefits are achieved.

The invention relates to a dry-method double-layer sulfide electrolyte membrane, a preparation method and a solid-state battery. The preparation method of the dry-process double-layer sulfide electrolyte membrane comprises the step of pressurizing and compounding the polymer protection layer and the sulfide ion transmission layer. The polymer protection layer is obtained by mixing a polymer and a lithium salt and then heating and melting the mixture. The polymer protection layer is compounded on one side of the sulfide ion transmission layer, and microcracks on the surface of the sulfide ion transmission layer are repaired on the premise of not introducing a solvent, so that defluorination reaction of polytetrafluoroethylene on the negative electrode side is avoided; the preparation of the electrolyte membrane with low thickness, complete structure, high ionic conductivity and stable interface is realized.

The invention relates to the technical field of rail traffic, and discloses a locomotive rail sanding device which comprises a sand storage box body, and a feeding port is formed over the sand storage box body. According to the locomotive track sanding device, when the locomotive track sanding device is used, the output end of a direct current motor drives an output rotating shaft to rotate, the output rotating shaft rotates to drive a plurality of sliding frames on a fixing block to rotate, the sliding frames rotate to drive a poke rod to rotate, and at the moment, the poke rod rotates and extrudes a driving plate; when the device is used, a shifting rod shifts an arc-shaped blocking piece at one end of a driving plate to extrude an extrusion spring along an arc-shaped rod, at the moment, the arc-shaped blocking piece is disengaged from and attached to a sand inlet small hole in the inner wall of the sand outlet cylinder, in this way, the sand inlet small hole in the sand outlet cylinder can be opened, sand enters the sand outlet cylinder through the sand inlet small hole, and therefore it is guaranteed that when the device is used, the sand inlet small hole cannot be blocked. Sand can be controlled to enter the sand outlet cylinder through the sand inlet small hole and be discharged to a locomotive track through the sand outlet pipe at the bottom of the sand leakage cylinder.

The utility model provides a chemical agent storage device, and belongs to the technical field of chemical agents. Comprising a preservation box body, an inflation structure is installed on the upper wall face of the preservation box body, an exhaust structure is installed on the lower wall face of the preservation box body, three sets of preservation structures are installed in the preservation box body, and a refrigeration structure is installed on the rear wall face of the preservation box body; the air inflation structure comprises two air inflation frames, an air inflation bottle, an air inflation cover, an air inflation pipe and an air inflation valve; according to the utility model, the chemical agent is isolated and stored through the sealing structure, and the sealed container is filled with the blunt gas, so that the contact between the chemical agent and air can be effectively isolated, and the situation that the chemical agent loses efficacy is further prevented. Meanwhile, the chemical agent leakage detection device has an alarm function, if a container for containing chemical agents is broken, the built-in liquid sensor can detect liquid leakage, and then an operator is alarmed.

The invention discloses composite hydrogel containing azelaic acid and a preparation method of the composite hydrogel, and belongs to the technical field of skin medicines.The azelaic acid is loaded and free azelaic acid is fixed through a layered structure of Ca / LDH powder, and then polymerization modification is conducted through dodecyl methacrylate, so that the composite hydrogel can be firmly smeared on the skin and is prevented from being scoured by sweat, and the skin care effect is good. Moreover, the Ca / LDH powder has an ion exchange characteristic between layers, so that a slow release effect on azelaic acid can be achieved; encapsulated menthol exists in the composite hydrogel containing azelaic acid, the encapsulated menthol is used for clathrating menthol through the clathration of a chitosan / cyclodextrin encapsulation carrier, and after clathration of the chitosan / cyclodextrin encapsulation carrier, a compact crystal structure of the carrier and the cavity clathration of cyclodextrin form a double barrier, so that the composite hydrogel containing azelaic acid has a good barrier effect. Contact between menthol and outside air and temperature is isolated, and volatilization loss of menthol is greatly reduced.

This invention belongs to the field of accessory painting, specifically relating to an accessory painting mold and its usage method. The accessory painting mold includes a housing with a cover plate connected to its top. A placement plate, a painting mechanism, and a rotating mechanism are installed on the side of the housing. The placement plate is rotatably connected to the inside of the housing for fixing the accessory. The painting mechanism includes a pump body and a spray plate fixedly installed inside the housing. The rotating mechanism includes a threaded post and a connecting plate. Compared with the prior art, this invention, through the cooperative connection between the cover plate and each component, allows the accessory to be painted in a sealed space, thereby effectively improving the working environment. It also allows for rapid connection and positioning between the connecting post and the placement plate, improving the loading and unloading efficiency of electronic components. Furthermore, it allows for rapid flipping of electronic components during the painting process, effectively improving painting efficiency.

The utility model discloses a solid-liquid isolation type liquid medicine preparation system, and belongs to the technical field of sewage treatment equipment. The device comprises a feeding device, an adding device, a pre-dissolving device and a medicament dissolution promoting device, the feeding device is communicated with the adding device, and the adding device is used for controlling the adding amount of a solid medicament; the feeding device comprises a conveying groove body and an isolation baffle plate which is mounted at a discharge hole of the conveying groove body in a turnover manner; the pre-dissolving device comprises a pre-dissolving main body connected with a water inlet pipe, the water inlet pipe feeds water into the pre-dissolving main body along the tangential direction, a feeding groove body, a pre-dissolving groove body and a liquid outlet channel are sequentially processed on the pre-dissolving main body, the feeding groove body is communicated with a discharge port of the conveying groove body, the inner side wall of the pre-dissolving groove body is processed into a funnel-shaped structure, and the liquid outlet channel is connected with the medicament dissolution promoting device. By the adoption of the technical scheme, the problem that solid medicine powder is affected with damp and agglomerated in the feeding device to block the device can be solved, and the dissolving effect of the medicine is remarkably improved.

This utility model discloses an automobile wheel hub, including a rim body and a spoke body. The spoke body has a mounting groove at its center, and a through hole at its center. Several bolt holes are arranged around the outside of the through hole. A mounting sleeve is threaded into the through hole, and a protective cover is connected to the mounting sleeve. The protective cover is installed on the top of the mounting groove. Several locking grooves are arranged in a ring shape on the through hole, and a spring is installed in each locking groove. A magnetic plug is connected to the end of each spring. An annular groove is formed on the outside of the mounting sleeve, and the magnetic plug connects the annular groove and the locking groove. A driving groove is provided inside the mounting sleeve, and a cover is installed on the outside of the driving groove. This utility model protects the wheel hub bolts with the protective cover, effectively reducing the risk of wheel hub and tire theft. The magnetic plug locks the mounting sleeve to the spoke body, preventing the protective cover from being disassembled with ordinary tools.

The invention discloses an all-solid-state battery positive electrode material. The all-solid-state battery positive electrode material comprises a positive electrode active material and a composite sulfide solid electrolyte, the composite sulfide solid electrolyte comprises a sulfide solid electrolyte matrix and a metal fluoride layer coated on the surface of the sulfide solid electrolyte matrix, and the mass ratio of the positive active material to the composite sulfide solid electrolyte is 7: 3. The sulfide solid electrolyte is coated with a layer of metal fluoride, on one hand, the stable metal fluoride effectively isolates sulfide from being in direct contact with air, the air stability of the sulfide solid electrolyte is greatly improved, and the problem that the sulfide solid electrolyte is sensitive to air is relieved; on the other hand, the metal fluoride coating layer can prevent sulfide solid electrolyte from being in direct contact with the positive electrode material, the instability between the positive electrode material and the electrolyte is relieved, and an effective thought is provided for industrialization of the all-solid-state battery.

This application relates to the field of coating technology, specifically disclosing a heat-insulating, flame-retardant, and anti-corrosion coating and its preparation method. A heat-insulating, flame-retardant, and anti-corrosion coating comprises the following raw materials in parts by weight: 50-80 parts of silicone-acrylic emulsion, 10-15 parts of epoxy resin, 30-40 parts of heat-insulating microcapsules, 15-21 parts of hollow glass microspheres, 3-5 parts of dispersant, 0.5-2 parts of polypropylene glycol diglycidyl ether, 1-5 parts of leveling agent, and 15-20 parts of water. The heat-insulating microcapsules comprise an aluminum powder core and a heat-insulating and flame-retardant capsule wall layer, the capsule wall layer material comprising acrylic resin and polyamide resin. The preparation method is as follows: hollow glass microspheres and heat-insulating microcapsules are added to silicone-acrylic emulsion and water and dispersed evenly to obtain a mixture; the dispersant, polypropylene glycol diglycidyl ether, epoxy resin, and leveling agent are added to the above mixture and mixed evenly to obtain the interior wall insulation coating. The composition of this application achieves a comprehensive improvement in heat insulation, flame retardancy, and anti-corrosion performance.

The invention discloses a silver-plating device for the surface of an aluminum alloy part, and relates to the technical field of silver-plating devices. The silver-plating device comprises a temperature control mechanism, an electroplating mechanism, a re-plating mechanism, a cleaning mechanism and a detection mechanism. The temperature control mechanism is tightly connected to the electroplating mechanism, the electroplating mechanism is located in the temperature control mechanism, the re-plating mechanism is tightly connected to the electroplating mechanism, the cleaning mechanism is tightly connected to the re-plating mechanism, and the detection mechanism is tightly connected to the electroplating mechanism. The temperature control mechanism cooperates with each other through a pipeline system and a spiral air duct to achieve temperature control. The connection between the electroplating tank and the temperature control tube further enhances the control of the temperature of the electroplating solution. The re-plating mechanism is tightly connected to the electroplating mechanism. The cleaning mechanism provides necessary surface preparation and cleaning for the workpiece before and after electroplating. The detection mechanism realizes the detection of defects on the surface of the aluminum alloy coating, such as bubbles, peeling, scratches, etc., and performs automatic rework processing, thereby improving work efficiency.

This invention discloses a high-temperature resistant, long-life carbide-based multilayer special functional coating and its preparation method. The method includes the following steps: (1) carbide coating; (2) powder preparation; (3) transition layer spraying; (4) special functional layer spraying; and (5) protective layer spraying. The carbide-based multilayer special functional coating prepared by this invention can greatly improve the coating's high-temperature resistance, oxidation resistance, and service life, and can meet the needs of various fields for special functional coatings.

The invention provides an electrolyte and a secondary battery. The electrolyte comprises an organic solvent, a lithium salt, a film-forming additive and a metal corrosion inhibitor, the mass ratio of the metal corrosion inhibitor in the electrolyte is 0.001-2%; the metal corrosion inhibitor is a benzotriazole compound and / or a sulfonate compound; the chemical formula of the sulfonate compound is R-SO3M, R is C1-C16 straight-chain alkyl or phenyl-substituted C1-C12 straight-chain alkyl, and M is selected from any one of Li, Na and K. The invention further discloses a preparation method of the sulfonate compound. By adding the metal corrosion inhibitor according to the type and the mass ratio into the electrolyte, a protective layer can be formed on the surface of the steel shell of the cylindrical battery, so that the contact between acidic byproducts in the battery and the surface of the steel shell is isolated, the corrosion of the steel shell is inhibited, and the storage performance, the cycle life and the safety of the battery are further improved.