297results about How to "Guaranteed mechanical strength" patented technology

The PEEK medical composite catheter comprises an inner layer, a middle reinforcing layer and an outer layer which are sequentially arranged from inside to outside, and the inner layer, the middle reinforcing layer and the outer layer are all made of PEEK materials; the middle reinforcing layer is formed by weaving PEEK lines in a staggered mode, connecting gaps are formed between the PEEK lines, developing units are embedded in the connecting gaps, and the developing units are arranged according to a limited path and form a specified developing graph, so that the developing effect is greatly improved, and the safety of the catheter in the using process is guaranteed.

The invention discloses a high-temperature superconducting coil structure, and relates to the technical field of superconducting magnets, and the main points of the technical scheme are that the high-temperature superconducting coil structure comprises a solenoid superconducting coil which is arranged in a layer winding manner and is internally provided with a first cooling channel arranged along the axis direction of a wire; the shunt bypasses are arranged on the solenoid superconducting coil at intervals, and second cooling channels are arranged in the shunt bypasses; wherein the shunt bypass and the solenoid superconducting coil are connected in a lap joint mode to form a connector, and at least one longitudinal cooling hole for communicating the first cooling channel with the second cooling channel is formed in the connector. While the inherent thermal stability and safety of the magnet are improved, the number of coil joints is greatly reduced, and heat generated by the joints is reduced; the superconducting magnet is divided into multiple sections by the shunt bypasses which are connected in parallel, and the shunt bypasses serve as a refrigerant inlet and outlet of the magnet and also serve as a rapid energy release and energy transfer loop during magnet quenching protection, so that the cooling efficiency of the magnet is improved, and the energy release speed of a magnet quenching section is increased.

The invention discloses a PEEK medical composite catheter containing a developing layer and a preparation method of the PEEK medical composite catheter. The PEEK medical composite catheter comprises an inner layer, a middle reinforcing layer and an outer layer which are sequentially arranged from inside to outside. The inner layer, the middle reinforcing layer and the outer layer are made of PEEK materials, the middle reinforcing layer is coated with a developing solution in a dip-coating mode, the developing solution is cured to form a developing layer, the developing solution is cured to form a developing layer, the catheter has a good developing effect, the developing layer is tightly connected with the middle reinforcing layer, the structure is more stable, and the service life of the catheter is prolonged. Compared with a traditional method that a developing ring is arranged on the catheter in a sleeving mode for developing, the situation that the developing ring is disengaged is avoided, and the whole developing ring has higher safety.

The invention relates to the field of electronic and electrical connection, and discloses a manufacturing method of a wire with a terminal, which comprises the following steps: S1, preparing a conductive adhesive: mixing epoxy resin, silver powder, copper nanoparticles, carbon nanotubes, a curing agent, a toughening agent, a dispersing agent and a defoaming agent according to a ratio to obtain the conductive adhesive; the conductive adhesive is obtained through premixing, nano-particle dispersion, step-by-step addition of silver powder, defoaming treatment, addition of a flexibilizer and secondary dispersion. S2, peeling, cleaning, coarsening and activating the wire and the terminal; s3, coating a conductive adhesive on a connection area of the conductor of the electric wire and the terminal; s4, inserting the wire into the terminal, and applying pressure for bonding; and S5, after the connecting piece is preliminarily cured, the connecting piece is completely cured. Efficient connection between the wire and the terminal is achieved through the conductive adhesive, mechanical damage caused by traditional crimping is avoided, the conductivity and mechanical strength are improved, adaptability is high, and reliable electrical connection can be provided in a severe environment.

The invention discloses a high-reliability long-acting anti-termite cable, and belongs to the technical field of cables, the high-reliability long-acting anti-termite cable sequentially comprises a conductor, an insulating layer, a conductor shielding layer, an aluminum sheath layer and a PE outer sheath from inside to outside, and the PE outer sheath comprises the following components in parts by weight: 100 parts of polyethylene and 20-50 parts of thermoplastic elastomer. The preparation method comprises the following steps: adding the surface-modified silicon dioxide microcapsule into a PE outer sheath material, using silicon dioxide as a capsule wall material of the self-repairing microcapsule, and using a repairing agent and an anti-termite agent as capsule core materials; and the surface of the silicon dioxide is modified with a methoxypolyethylene glycol chain segment with a dispersion effect and a vanillyl nonanoate amide chain segment with an anti-ant effect, so that the high-reliability long-acting anti-ant effect is achieved.

The invention relates to a flame-retardant cellulose composite film and a preparation method thereof, belongs to the field of flame-retardant materials, and aims to solve the problems that a cellulose film is inflammable, poor in compatibility with an inorganic flame retardant, relatively low in mechanical property and the like. The main components of the composite membrane comprise nanocellulose, titanate nanofibers, carbon dots and a cross-linking agent. The preparation method comprises the following steps: firstly, enabling the carbon dots to react with the nanocellulose under the action of an initiator; secondly, adding titanate nanofibers into the carbon dot modified nanocellulose suspension, and uniformly mixing; then, adding a cross-linking agent and uniformly dispersing to obtain a mixed solution; and finally, casting the solution into a culture dish, and curing in a vacuum drying oven to prepare the flame-retardant cellulose composite film. According to the preparation method, the compatibility of the flame retardant and the nano cellulose is remarkably improved, the mechanical property is enhanced, and the composite film has excellent flame retardance, smoke suppression and heat insulation characteristics and is suitable for preparing the flame-retardant cellulose composite film.

The invention relates to the field of fire hoses, and provides a flame-retardant high-strength fire hose and a preparation method thereof.The fire hose sequentially comprises an outer protection layer, a flame-retardant layer, a woven layer, a reinforcing layer and a lining layer from outside to inside; the flame-retardant layer contains a surface-modified magnesium hydroxide micro-tube coated flame retardant, so that the flame-retardant effect is enhanced; the reinforcing layer contains the surface-modified bead-shaped silicon carbide nanowires, so that the mechanical property of the reinforcing layer can be remarkably improved. The five-layer composite structure and the design of multiple functional materials are adopted, comprehensive improvement of flame retardance, mechanical property, use convenience and the like is achieved, the problem that a traditional fire hose is insufficient in flame retardance and mechanical property is solved, and the fire hose has wide application value.

The invention discloses a method for preparing a conductive ceramic with controllable resistivity, and relates to the technical field of conductive ceramics. The invention adopts three different particle sizes of aluminum oxide, titanium nitride, and silicon dioxide to form a ceramic slurry, which reduces the possibility of deformation, and adjusts the amount of titanium nitride added to adjust the ceramic resistivity, thereby realizing the controllable resistivity of the ceramic; the invention adopts methacrylic acid glycidyl ether and starch to form a gel skeleton, and uses amino-treated nanographite sheets as a support to ensure the mechanical strength of the ceramic; the ceramic slurry is used as a core material, and then a layer of gel is wrapped around the outer layer of the core material, and a three-stage high-temperature sintering treatment is performed to optimize the strength of the ceramic, while making the zirconium ions and nickel ions doped with the gel combine with the lanthanum ions in the atomized liquid, and form a zirconium-nickel-lanthanum-carbon crystal structure under a H2O / O2 atmosphere, which greatly improves the conductivity of the gel layer, thereby forming a uniform and continuous conductive path on the surface and inside of the ceramic.

The invention discloses a carbon nanotube electric heating film and a preparation method thereof. The carbon nanotube electric heating film comprises a substrate layer, a bonding layer and a conducting layer which are sequentially arranged, carbon nanotubes are distributed in the conducting layer and comprise a plurality of first carbon nanotubes distributed in the first direction and a plurality of second carbon nanotubes distributed in the second direction on the plane of the conducting layer, and the first direction is perpendicular to the second direction. The carbon nanotubes in the conductive layer are directionally arranged to form a more ordered structure, so that higher light transmission is achieved, meanwhile, the transmission efficiency of electrons can be further improved, defects and impurities in the electrons are reduced, and the conductivity and the mechanical strength are guaranteed; and the stable conductive performance and structural strength can ensure that good electronic performance can still be kept during bending and stretching. And finally, good optical, electrical and mechanical properties are kept in the heating process, so that the demisting speed is higher.

The invention relates to the technical field of cables, and discloses a long-life photovoltaic cable which comprises a conductor, an insulating layer arranged outside the conductor and a sheath layer arranged outside the insulating layer, the conductor is formed by stranded tinned copper wires, the surface of each copper wire is covered with a layer of tin, and the sheath layer is arranged outside the insulating layer. Both the insulating layer and the sheath layer adopt a flame-retardant halogen-free polyolefin material with at least temperature resistance as a base material, the content of carbon black in the sheath layer is greater than%, and the materials of the insulating layer and the sheath layer are subjected to an irradiation crosslinking processing procedure. The invention aims to provide the long-life photovoltaic cable which is temperature-resistant, aging-resistant, acid and alkali-resistant, flame-retardant and excellent in ultraviolet-proof performance.

The invention relates to the technical field of intelligent materials, and discloses a p-MXene conductive ink and BC reinforced polymer composite film and a preparation method and application thereof.The composite film comprises MXene and bacterial cellulose, the surface of the MXene is coated with waterborne polydopamine, waterborne polyurethane is embedded in the bacterial cellulose, and the surface of the MXene is coated with waterborne polyurethane; hydroxyl groups in the water-based polydopamine and amino groups in the water-based polyurethane form hydrogen bonds to connect the MXene with the bacterial cellulose. The composite film obtained by the invention has excellent mechanical properties and electrical properties, and also has comprehensive properties such as electromagnetic shielding and stress-strain sensing.

The invention discloses a cladding tube for a lithium cold space nuclear reactor and a preparation method of the cladding tube, and belongs to the technical field of cladding tube structures, and the cladding tube is of an interlayer structure formed by sequentially overlapping a first W-Re alloy layer, a first WSi2 coating, a SiCf / SiC composite material layer, a second WSi2 coating and a second W-Re alloy layer from inside to outside. According to the invention, the air tightness and corrosion resistance of the cladding tube are obviously improved, and the cladding tube for the lithium cold space nuclear reactor has the properties of strong toughness, light weight, corrosion resistance, sealing property and the like.

The invention provides a cellulose composite carbon aerogel and a preparation method thereof, and the cellulose composite carbon aerogel is prepared by taking cellulose nanofibers and carbon nanotubes as raw materials, mixing and dispersing the raw materials through dispersoid, and then preparing cellulose nanofiber / carbon nanotube composite carbon aerogel through bidirectional freezing, freeze drying and high-temperature carbonization. The invention also provides an application of the cellulose composite carbon aerogel in the aspect of a battery electrode, and the cellulose composite carbon aerogel has an ultra-large specific surface area and an excellent compression ratio under ultra-low density, and shows super-hydrophilicity, high electrochemical activity, good compression resilience, good structural stability and certain mechanical strength; and the method can be used for various electrochemistry-based water-based flow batteries. The invention solves the technical problem that the existing cellulose carbon aerogel is poor in compressibility and mechanical strength, and belongs to the technical field of batteries.

The invention provides an efficient composite diaphragm for hydrogen production through alkaline electrolysis of water and a preparation method of the efficient composite diaphragm, and belongs to the technical field of hydrogen production through electrolysis of water. The preparation method comprises the following steps: S110, dissolving a polymer raw material in a solvent, stirring and mixing to form a spinning solution; s120, preparing a polymer non-woven fabric from the spinning solution through a flash evaporation method; s130, the polymer non-woven fabric is sequentially soaked in a strong alkali solution and a metal chlorate or metal nitrate solution, and conductive inorganic particles are formed on the surface and in pore channels of the polymer non-woven fabric after roasting; and S140, repeating the step S120 and the step S130 for multiple times, and cleaning the membrane material to obtain the porous composite membrane. The polymer non-woven fabric prepared by adopting a flash evaporation method is used as a diaphragm framework, the thickness of the diaphragm is greatly reduced while the high mechanical strength of the diaphragm is ensured, and the resistance of the diaphragm is further reduced, and then conductive inorganic particles are grown on the surface of the polymer non-woven fabric and in pore channels by adopting an in-situ chemical deposition method. The preparation process is simple, and industrial amplification is easy.

The utility model provides screen forming equipment for TPU (thermoplastic polyurethane) welding. The screen forming equipment comprises a screen plate sub-part transferring assembly arranged on a welding platform and a screen plate sub-part for pressing the side edge of the butt joint edge of the screen plate sub-part, the hot air welding mechanism is positioned above the to-be-welded areas of the two separated parts and is used for performing hot air blowing treatment on a butt edge gap; and the fusion area pressing and forming assembly is used for pressing and forming the fusion area of the butt joint edges of the two screen plate sub-parts. According to the invention, the large-scale or even ultra-large-scale integral injection-molded part is formed through a welding process mode of firstly carrying out injection molding on the small components and then carrying out butt joint one by one to carry out hot fusion cooling, so that the technical problem that large-scale or ultra-large-scale injection-molded parts are difficult to produce or even cannot be produced in the prior art is solved; therefore, injection molding parts with large boundary dimensions and ultra-large boundary dimensions can be manufactured with a simple process method and cost, and curved edges or annular butt joint or hybrid welding of injection molding modules with different colors can be achieved.

The invention relates to electronic equipment of the internet of things, and discloses wearable equipment, an injection molding system of the wearable equipment and an opening and manufacturing method of the wearable equipment. The injection molding system comprises a mold, a bracket, a circuit board and a battery, the circuit board and the battery are fixed on the bracket, and the battery supplies power to the circuit board; the mold is provided with a hollow cavity, and the bracket on which the circuit board and the battery are fixed is arranged in the cavity; one part of the bracket is in contact with the mold so as to stably arrange the bracket in the cavity; the circuit board and the battery are arranged in the cavity and are not in contact with the inner surface of the cavity; the mold comprises at least one injection molding hole communicating the cavity with the exterior of the mold. According to the injection molding system, integrated packaging of products can be achieved, the waterproof performance and the structural strength are improved, meanwhile, the production cost is reduced, and the production efficiency is improved.

The utility model discloses a telescopic anti-overturning automobile safety seat base. The telescopic anti-overturning automobile safety seat base comprises a base body, the anti-overturning assembly is arranged on the base body and can be adjusted in a telescopic and sliding mode in the front-back direction of the base body, and the anti-overturning assembly is configured to be used for being attached to the backrest side of the automobile seat in an abutting mode so as to achieve overturning resistance; the telescopic length of the anti-overturning assembly relative to the base body is controlled and adjusted through the telescopic sliding of the anti-overturning assembly relative to the base body, that is, the anti-overturning assembly can be correspondingly adjusted in a telescopic mode according to automobile seats of different sizes so as to ensure that the anti-overturning assembly can abut against and be attached to the backrest sides of the automobile seats of different sizes. Therefore, by the adoption of the automobile seat, the requirement for installation, attachment and overturning resistance of different automobile seats can be met, and meanwhile the problem that legs of children bend unnaturally when the automobile seat is installed and used backwards can be solved.

The invention discloses a method for testing the thickness of a surface oxide layer of micron-sized boron particles, which comprises the following steps of: (1) preparing the micron-sized boron particles, and selecting boron powder particles with the particle size of 100nm-50mu m; (2) preparing a transmission sample of micron-sized boron particles, depositing a Pt protective layer on the surfaces of the particles by using a focused ion beam system before preparing a boron powder transmission sample, protecting an oxidation shell layer on the surfaces of the boron particles, and thinning in a selected area when thinning a slice to ensure the mechanical strength of the slice; and (3) transmission characterization of the micron-sized boron particles: the thickness and measurement error of the oxide layer of the boron particles are calculated by combining transmission images and energy spectrum comprehensive analysis, and the method has the advantages of high sample preparation success rate, high characterization accuracy, high characterization precision and the like.

The invention provides a modified graphite-based composite material as well as a preparation method and application of the modified graphite-based composite material. Comprising the following raw materials in parts by weight: 100 parts of graphite powder, 20-30 parts of polyethylene dioxythiophene, 10-20 parts of modified graphene, 10-20 parts of carbon nanotubes, 10-20 parts of epoxy resin, 1-5 parts of methyl methacrylate and 0.1-0.5 part of tert-butyl peroxybenzoate. Wherein the modified graphene is polyamide-amine functionalized graphene. The modified graphite-based composite material disclosed by the invention has good conductivity, air tightness and mechanical strength when being used as a bipolar plate of a fuel cell.

The invention belongs to the technical field of high polymer materials, and particularly relates to a black phosphorus polyether-ether-ketone modified antistatic composite material and application. The composite material comprises the following raw materials in parts by mass: 100 parts of modified polyether-ether-ketone, 3-8 parts of modified black phosphorus nanosheets, 0.5-3 parts of functionalized graphene quantum dots, 0.5-2 parts of an interface modifier, 0.5-1 part of an antioxidant and 1-3 parts of a processing aid. According to the material, the problem of high surface resistivity of a traditional PEEK material is solved, the material is endowed with excellent antistatic performance, and meanwhile, the original mechanical strength is kept. Through the improvements, the composite material shows important actual value and market prospect in the high-end application fields of automobile parts, engine accessories, power battery shells, charging guns, charging piles and the like.

The embodiment of the utility model discloses a narrow-flow-channel impeller structure and a compressor. The narrow-flow-channel impeller structure comprises a cover disc, blades, a first spigot and a shaft disc. The cover disc and the blades are of an integrated structure, the mechanical strength of the narrow-flow-channel impeller structure is guaranteed, in the manufacturing process of the narrow-flow-channel impeller structure, the whole formed by the cover disc and the blades can be positioned through the first seam allowance and the rotary disc, then a circle of full welding can be formed at the first seam allowance, and a welding groove formed in the shaft disc is combined, so that the narrow-flow-channel impeller structure is manufactured. The blades close to the outlet side can be subjected to slotting welding through the welding grooves. By means of the arrangement, TIG + SMAW welding can be used for completing preparation of the narrow-flow-channel impeller structure, the strength of the narrow-flow-channel impeller structure is guaranteed, sinking weld meat is good, burnthrough and non-fusion are avoided, all blade weld joints are qualified in flaw detection, the appearance quality is good, and the production efficiency is high.

The invention provides a hydrogel fruit preservative capable of being sprayed and produced on a large scale as well as a preparation method and application of the hydrogel fruit preservative. The hydrogel fruit preservative comprises the following raw materials: a mixed solvent of polyvinyl alcohol, tannic acid, ethanol and deionized water. The hydrogel fruit preservative disclosed by the invention is simple in preparation method and raw material composition, low in cost, capable of being produced on a large scale, environment-friendly, easy to clean, recoverable, recyclable, capable of quickly forming a film (within 50s), uniform and smooth after film forming, high in mechanical strength, and has the characteristics of being antibacterial, antioxidant, uvioresistant, low in water oxygen transmission efficiency and the like.

The present invention provides a kind of lignite for honeycomb activated carbon and its quality improvement and modification method, honeycomb activated carbon, the quality improvement and modification method of lignite for honeycomb activated carbon, comprising the following steps: taking lignite powder, adding an aqueous solution of sodium borohydride, mixing evenly, performing a reduction reaction, and obtaining reduced lignite; mixing the reduced lignite with a thermal stability regulator, 9,10-dihydrophenanthrene, and N,N-dimethylformamide evenly, performing a swelling treatment, and obtaining swollen lignite; mixing the swollen lignite with aniline evenly, stirring the reaction, and obtaining lignite for honeycomb activated carbon. The lignite obtained by the quality improvement and modification method of the present invention for honeycomb activated carbon is not easy to return to white, is not easy to crack after being made into honeycomb activated carbon, has good mechanical strength, and has good thermal stability.

The invention provides a preparation method of a PEM water electrolysis anode diffusion layer, which relates to the field of PEM water electrolysis. Titanium nanotubes with different pore sizes are selected, and the large-pore titanium nanotubes are used to transmit liquids, and the small-pore titanium nanotubes are used to transmit gases, so that the gas and liquid transmission in the PEM water electrolysis process is highly ordered, and good liquid and gas management functions are achieved; the surfaces of the titanium nanotubes and titanium powders are attached with noble metal ions, and then oxygen is introduced for calcination, so that the noble metal ions form an oxide grid structure and are attached and embedded in the surfaces of the titanium nanotubes and titanium powders, which has higher firmness, protects the titanium material from being oxidized in the water electrolysis process, and improves the conductivity and catalytic ability of the anode diffusion layer.

The application relates to the field of adsorbents, and discloses a LiLSX molecular sieve adsorbent and a preparation method thereof. The method comprises the following steps: 1) sequentially performing molding treatment, first drying and first calcination on a mixture of kaolin and NaLSX molecular sieve powder to obtain a first calcination product; 2) performing pre-wetting treatment on the first calcination product to obtain a pre-wetting product; 3) contacting the pre-wetting product with alkali and a silicon source or contacting the pre-wetting product with alkali and an aluminum source in the presence of water to obtain a contact product; 4) performing second drying and second calcination on the contact product to obtain a second calcination product; and 5) performing lithium ion exchange on the second calcination product by using an exchange solution containing lithium ions, and the amount of the NaLSX molecular sieve powder is 85% or more in weight based on the total weight of the mixture. The method can make the prepared LiLSX molecular sieve adsorbent have excellent adsorption performance and mechanical strength.

This utility model discloses a conical installation device for a cartridge filter in an air conditioning unit. The device comprises a top disc, hexagonal bolts, diagonal support rods, fixing rods (in three lengths), internal hexagonal screws, flat washers, and spring washers. This utility model uses a specialized tooling mold for positioning. The diagonal support rods, composed of three round steel pipes arranged in an isosceles triangle and welded into a conical structure, are finished with hexagonal bolts at the ends and secured with a handle locking device. The filter cartridge can be disassembled and assembled without any special tools. This solves the problems of deformation and air leakage caused by insufficient installation strength in cartridge filters, while also shortening installation and disassembly time, ensuring the air conditioning unit can be put into use quickly. It is particularly suitable for air conditioning systems in cigarette factories, welding workshops, and other similar fields.

A split type machining tool comprises a tool handle, a tool bit, a fastener and a spacer ring, the fastener and the tool handle are locked so that the tool bit can be fixed to the tool handle, the spacer ring is arranged on the fastener in a sleeved mode, at least one part of the spacer ring is located in the tool bit, and when the fastener and the tool handle are completely locked, the rear end face of the tool bit makes contact with the front end face of the tool handle; the cutter handle and the cutter head oppositely extrude the spacer ring in the axial direction so that the spacer ring can deform in the radial direction, and the outer side face and the inner side face of the spacer ring are in interference fit with the cutter head and the fastener correspondingly. According to the machining tool, the distance ring is arranged in the tool bit, the tool handle and the tool bit oppositely extrude the distance ring in the axial direction in the assembling process so that the distance ring can deform in the radial direction, the inner side face and the outer side face of the distance ring can tightly press the fastener and the tool bit correspondingly, and therefore close fit between the tool bit and the fastener can be achieved; therefore, the tool bit and the tool handle have good coaxiality, and the machining precision of the machining tool is guaranteed.

This invention relates to an adsorption tower and a gas nano-purifier. The adsorption tower includes an outer tube and an inner tube coaxially arranged within the outer tube. The outer tube has a first outlet on its wall. The inner tube includes an inlet section, an adsorption section, and a dust removal section connected sequentially from bottom to top. The inlet section has an inlet on its wall. The adsorption section is filled with adsorbent, and a first filter and a second filter are respectively provided at the connection points between the adsorption section and the inlet and dust removal sections. At least a portion of the sidewalls of the dust removal section is configured as a filter layer. Under purification conditions, the high-pressure gas to be treated enters the inner tube through the inlet, passes sequentially upwards through the adsorption and dust removal sections, enters the annular gap between the inner and outer tubes via the filter layer, and is discharged from the first outlet. Through this configuration, using a tube-in-tube structure with the outer and inner tubes coaxially arranged, the integration of the equipment is improved and its volume is reduced, achieving multi-stage purification of gas within a single component, including diffusion, deep adsorption, and precision dust removal.

The present disclosure provides a bimetallic self-lubricating composite coating and a preparation method thereof, which relates to the technical field of metal coating modification. The bimetallic self-lubricating composite coating includes: a heat-conducting bearing layer and a lubricating and anti-friction layer; wherein: the heat-conducting bearing layer includes a copper alloy, and the copper alloy includes tin bronze and / or aluminum bronze; the lubricating and anti-friction layer includes a tin-based babbitt alloy matrix, a solid lubricant, and a plurality of hard phases. The bimetallic self-lubricating composite coating provided by the present disclosure can use the copper alloy as a heat-conducting bearing layer and use the tin-based babbitt alloy matrix, the solid lubricant, and the hard phase as a lubricating and anti-friction layer, thereby maintaining the mechanical strength, hardness, thermal conductivity, and heat resistance of the copper alloy, and lubricating and anti-friction can be performed based on the babbitt alloy, thereby solving the problem in the related art that the copper alloy has insufficient compliance, poor adaptability to the bending and misalignment of the shaft and the bearing, and relatively poor lubrication performance.

The application discloses a wire outlet terminal suitable for a dry type variable winding and wrapped by an elastic insulator, which comprises a copper nut and a clamping plate. The copper nut is in a column shape and comprises a quadrangular body and a cylinder body. The end of the cylinder body is connected with a wire outlet head of the variable winding, thereby forming the wire outlet terminal of the variable winding. The clamping plate is provided with a square hole in the middle. The quadrangular body of the copper nut is embedded into the square hole, so that the copper nut is fixed on the clamping plate. After the copper nut is fixed, the clamping plate is fused with the elastic insulator as a whole. The application can strengthen and adapt to the elastic insulator wrapped winding.