29results about How to "Wear-resistant" patented technology

The utility model belongs to the technical field of dust and sand prevention of pipe orifice, provide a protection structure of suction nozzle, include: first cover body, connect in the direct above of suction nozzle to cover the suction nozzle with full package type, and second cover body is connected in the direct above of first cover body to cover the first pressure relief hole that is set up on first cover body, wherein, first cover body inside passes first pressure relief hole, second pressure relief hole and outside atmosphere communication in proper order, second pressure relief hole hidden type is established in second cover body and its axis is towards ground to guide medium release while preventing dust and sand backflow into second cover body. The second cover body that is hidden type with second pressure relief hole covers first cover body, so that suction nozzle can realize normal pressure relief through first pressure relief hole, second pressure relief hole, exclude the security risk, utilize the second pressure relief hole of axis towards ground simultaneously can prevent dust and sand backflow into second cover body, improve the dust and sand prevention ability of suction nozzle.

The application discloses isosorbide bio-based polyurethane acrylate, which is prepared from bio-based isosorbide, bio-based 1,2-pentanediol, bio-based 1,5-pentanediol and bio-based succinic acid as raw materials through esterification reaction, vacuum polycondensation reaction, bio-based hydroxyl-terminated polyester, reaction of bio-based hydroxyl-terminated polyester and bio-based 1,5-pentamethylene diisocyanate, bio-based polyurethane, reaction of bio-based polyurethane and hydroxyethyl acrylate, and UV-curable isosorbide bio-based polyurethane acrylate. The application discloses application of the isosorbide bio-based polyurethane acrylate in preparation of UV coating, ink and adhesive. The isosorbide bio-based polyurethane acrylate is compounded with a UV monomer into a UV resin, the UV resin is compounded into a UV coating, and after curing, the UV coating has excellent properties such as high hardness, wear resistance, scratch resistance, heat resistance and weather resistance, and can be used as raw material of the UV coating, ink and adhesive.

This invention belongs to the field of textile technology and relates to a polyester warp-knitted fabric with a nylon-like feel, its preparation method, and its application. The polyester warp-knitted fabric with a nylon-like feel is obtained through a knitting process and a dyeing and finishing process. The knitting process uses polyester combined with spandex and a warp-knitting padding design to optimize the yarn interlacing state, making the fabric soft and delicate to the touch. The dyeing and finishing process includes refining, first drying, pre-setting, alkali reduction, dyeing, second drying, and final setting. By controlling the reduction rate in the alkali reduction step, the polyester fabric can be given a soft and smooth feel and delicate luster similar to nylon. At the same time, it can overcome the functional limitations of real nylon, integrating cooling sensation, moisture absorption and quick drying, softness and skin-friendliness, good drape, wear resistance, breathability and non-suffocation, and wrinkle resistance and easy care into one.

The utility model relates to a boiler SNCR spray gun convenient to replace, including gun body, the front end of gun body is connected with the gun head, still include connecting piece and fixed clamp, connecting piece includes sleeve pipe, and the flange plate and circular plate connected in the both ends of sleeve pipe, the flange plate is connected with boiler wall flange, the gun body is equipped with the fixed plate matched with circular plate, the shape of fixed clamp is matched with circular plate and fixed plate, fixed clamp includes a pair of semicircle clamp of hinge connection, and is used for the lock catch device of fixed clamp opening and closing, semicircle clamp includes the face hoop board of circular arc, the side hoop board with locking hook connected in the both sides of face hoop board, locking hook is equipped with the first guide surface of arc towards the inside of side hoop board, have realized only need fixed clamp to tighten and connect circular plate and fixed plate, simultaneously, the first guide surface of locking hook extrudes circular plate, cooperates with the side hoop board of other side, extrudes fixed plate and sticks together to circular plate, need not additional force and press tightly two, satisfy the convenience demand of quick dismounting spray gun.

A kind of UHPFRC combined steel bridge deck panel using burl cold connection key, comprising the following construction steps: S1, prefabricated cold connection key;S2, using high-pressure air gun to carry out dust removal, cleaning to steel bridge deck top plate;S3, set cold connection key on steel bridge deck top plate, the longitudinal distance between adjacent cold connection key is 30-50cm, the transverse distance is 30-50cm;S4, pours the layer of ultra-high performance cement-based composite material on steel bridge deck top plate and cold connection key;The combined steel bridge deck panel of the application is simple in structure, and the force is clear, burl cold connection key is used in steel-mix combined structure, increases the contact area of connection key and concrete, can significantly reduce the stress concentration between connection key and concrete, while connection key has 360 degrees universal shear resistance, and shear resistance adaptability is good, and has good tensile performance, reliable connection and other advantages, is used with copolymerized formaldehyde fiber or hybrid fiber UHPFRC, can significantly improve the combined stiffness of combined structure, improves the fatigue performance of steel bridge deck panel.

The utility model discloses an automobile tire fastening belt which comprises a macromolecule outer colloid belt and a steel wire rope inner net curtain, and the macromolecule outer colloid belt is wrapped outside the steel wire rope inner net curtain through mould pressing or injection molding. Due to the adoption of the steel-plastic composite structure, compared with an original woven polyester belt, the steel-plastic composite belt has the advantages of being high in strength, low in ductility, high in friction force with a tire joint surface and capable of preventing looseness under the condition of the same function. And moreover, the wear-resistant, scratch-resistant and anti-shearing characteristics are realized, and the service life can be greatly prolonged.

This utility model relates to the field of display screen technology and discloses a touch LED digital screen for an ice maker; it includes a transparent plate and a display screen, the display screen being disposed on one side of the transparent plate; a structural support layer is fixed to the inner wall of the transparent plate, and a buffer energy-absorbing layer is disposed on one side of the structural support layer. This utility model provides a stable frame by setting a structural support layer to prevent screen deformation, the buffer energy-absorbing layer absorbs external impact through elastic material to isolate equipment vibration, the foam adhesive layer ensures firm bonding of various components and also assists in buffering stress, the tempered glass layer resists external impact with high strength and high light transmittance to ensure clear display, and the hardened coating further enhances the surface hardness of the glass and has wear resistance and anti-fingerprint functions. The synergistic effect of each layer ensures stable operation of the screen in complex usage environments, extends its service life, and improves the user experience.

This invention provides a composite bimetallic drill pipe and its preparation method. A first aspect of this invention provides a method for preparing a composite bimetallic drill pipe, the method comprising the following steps: preparing a bimetallic drill pipe joint; preparing a bimetallic drill pipe body; friction welding the end of a first region of the drill pipe joint to the end of a second region of the drill pipe body; after welding, applying a third corrosion-resistant alloy layer to the inner wall of the weld area between the drill pipe joint and the drill pipe body, and fusing the third corrosion-resistant alloy layer with the first and second corrosion-resistant alloy layers. According to the preparation method provided by this invention, a complete corrosion-resistant alloy layer is formed on the entire inner wall of the drill pipe, effectively ensuring the corrosion resistance of the inside of the pipe body and improving the overall performance and service life of the drill pipe.

The utility model relates to the technical field of refrigerant recycling devices, in particular to an air conditioner and refrigerator refrigerant recycling device which comprises a refrigerant recycling machine body, a communicating pipe and a heat dissipation opening are arranged on the refrigerant recycling machine body, and the outer surface of the refrigerant recycling machine body is covered with a composite protective layer. The composite protective layer comprises a chemical nickel-plated phosphorus alloy inner protective layer and a polytetrafluoroethylene outer protective coating, and the chemical nickel-plated phosphorus alloy inner protective layer has excellent corrosion resistance, so that the corrosion of a high-humidity and high-corrosion environment to the equipment body can be resisted; the polytetrafluoroethylene outer protective coating has the characteristics of wear resistance, chemical corrosion resistance and low friction coefficient, so that the protective capability of the surface of the equipment can be further enhanced, the problem of possible leakage of the recycling machine due to external environment corrosion in the prior art is effectively solved, the service life of the equipment is prolonged, and the pollution risk to the environment is reduced; and meanwhile, the health and safety of workers are also guaranteed.

This invention discloses a steel pipe anti-deformation structure, comprising: an inner medium-flow steel pipe, the inner surface of which is coated with a ceramic layer; and a middle layer of high-temperature resistant steel pipe fitted onto the outer surface of which is a middle layer of high-temperature resistant steel pipe. The middle layer of high-temperature resistant steel pipe is composed of multiple segments of first high-temperature resistant steel pipes spliced ​​together, with a first expansion joint between adjacent first high-temperature resistant steel pipes. A certain gap is maintained between the inner surface of the middle layer of high-temperature resistant steel pipe and the outer surface of the inner medium-flow steel pipe. This invention's steel pipe anti-deformation structure ensures the straightness of the inner medium-flow steel pipe by adding a composite ceramic layer inside the inner medium-flow steel pipe and adding multiple single-layer or multi-layer high-temperature resistant steel pipes to the outer wall of the steel pipe, thus preventing bending deformation and extending service life.

The application discloses a high-density powder modified carbon fiber winding forming method based on ultrasonic spraying, which comprises the following steps: firstly, high-density powder slurry is premixed and the viscosity is regulated; under the condition of continuous stirring and stable feeding, high-density functional powder is uniformly attached to the surface of carbon fiber tape or carbon fiber tows to form a film and is integrally formed by winding and solidification through ultrasonic spraying; and a composite winding product formed by tightly combining a high-density powder functional layer and a carbon fiber reinforced layer is obtained in the winding process. The application is suitable for the preparation of winding forming products such as carbon fiber winding pipes, annular parts, cylindrical parts, shells, rotating shafts, rotors, pressure vessels and functional composite components. By selecting different types of high-density functional powder, the carbon fiber composite material after winding forming can further have the characteristics of heat conduction, magnetic conduction, electromagnetic shielding, counterweight, wear resistance and other functional properties on the basis of maintaining high strength and lightweight.

The utility model relates to children's playground equipment technical field especially, and more particularly to a children's playground equipment with protection function, including base, the top of base is provided with the climbing frame, and the climbing frame is the arch bridge structure, and the top of base is fixed with the protection pad no.

The invention provides an intelligent sensing control shock wave mass transfer aeration system, and relates to the technical field of sewage treatment. The water pump and the shock wave mass transfer aerator are both installed in sewage of the aeration tank, a liquid suction inlet part in the top of the shock wave mass transfer aerator is located below the water surface, the fan unit comprises a fan, a frequency converter and a wind speed measuring instrument, and the wind speed measuring instrument is used for measuring the wind speed and the wind quantity at an inlet of the fan; the control system collects real-time data of dissolved oxygen, pH and oxidation-reduction potential through a sensor, analyzes and processes the data, and plans a control path according to the relationship between the dissolved oxygen, pH and oxidation-reduction potential and the air volume. The device has the advantages that the oxygen mass transfer efficiency is high, stirring and mixing are uniform, and the aerator is not prone to being blocked and resistant to abrasion; the optimal air inflow can be adjusted and matched at any time through a control system, so that accurate quantitative aeration is realized, and the aeration energy consumption is reduced.

The invention provides a lacquering mold for a horizontal enameled flat wire and a preparation method of the lacquering mold, and relates to the technical field of mold material processing. The material used by the painting mold is an aluminum-based or magnesium-based composite material reinforced by ceramic particles, and the ceramic technology is one or more of SiC, TiC, TiB2, Al2O3 particles or whiskers. The mold is manufactured by adopting a powder injection molding process. The lacquering mold for the horizontal type enameled flat wire has the advantages of being low in thermal expansion coefficient, high in hardness and elasticity modulus and good in abrasion resistance, can stably float at the design position in a paint box, and solves the problem that due to the fact that a traditional mold is large in weight and deviates from the center, the thicknesses of paint films on the upper side and the lower side of the enameled flat wire are not consistent.

The utility model belongs to clothing equipment technical field, concretely is a kind of multi-zip ultraviolet-proof clothes, including: body, body is made of ultraviolet-proof fabric;Front, sleeve, hem and clothes both sides of body are provided with zipper;Front is provided with a main zipper, and the both ends of main zipper extend to collar bottom and body bottom respectively;Sleeve is provided with a ring zipper respectively, and ring zipper is set along the circumferential direction of sleeve;Hem is provided with a transverse zipper, and the both ends of transverse zipper extend to clothes both sides respectively;Clothes both sides are provided with a vertical zipper respectively, and the one end of vertical zipper is connected with the transverse zipper of hem, and the other end extends to underarm position.The utility model is provided with multiple zippers on the front, sleeve, hem and both sides of body, and the degree of opening and closing of clothes can be adjusted flexibly according to actual demand by wearer, so that good ventilation effect is realized.

The invention relates to the technical field of coatings, in particular to water-based two-component low-temperature stoving varnish for a photovoltaic frame and a preparation method of the water-based two-component low-temperature stoving varnish. The water-based two-component low-temperature stoving varnish for the photovoltaic frame comprises a component A and a component B, comprising the following raw materials in parts by weight: 50-60 parts of resin, 10-25 parts of functional filler, 4-10 parts of a solvent, 0.2-0.5 part of a defoaming agent, 0.1-0.3 part of a wetting agent, 0.5-1.5 parts of a dispersing agent, 0.2-0.5 part of a thickening agent and 10-15 parts of water, and the component B is isocyanate. The low-temperature baking varnish prepared by the invention has good adhesive force and excellent corrosion resistance, aging resistance and wear resistance.

This utility model relates to the field of automotive seat leather technology and discloses an anti-mold polyurethane automotive seat leather, comprising an outer layer; a middle layer and a bottom layer are sequentially disposed below the outer layer, and the outer layer, middle layer and bottom layer are all bonded together by adhesive; the outer layer includes an anti-mold protective layer, and the middle layer includes a heat dissipation structural layer; the anti-mold protective layer and the heat dissipation structural layer are internally interconnected. By using polyurethane as the base material and through innovative anti-mold technology, the problem of traditional automotive seat leather being susceptible to mold erosion, odor growth, and impacting human health is fundamentally solved. This product not only possesses the wear resistance, scratch resistance, and easy cleaning properties of polyurethane material itself, but also effectively inhibits mold growth in complex in-vehicle environments such as humidity and high temperature, providing a healthier, more comfortable, and durable seat experience for drivers and passengers, while also meeting the urgent demand of the automotive industry for high-quality, environmentally friendly interior materials.

The utility model relates to the field of heat exchanger bellows pipe, specifically relates to a kind of heat exchanger bellows pipe wear-resistant support, including the support disc of round, multiple installation holes are opened in the support disc with support disc as the axis and annular distribution, wave section pipe is placed in the installation hole, support component is installed between installation hole and wave section pipe, for the support fixing of wave section pipe in support disc, hollow direct head is fixedly connected with both sides of wave section pipe;The heat exchanger bellows pipe wear-resistant support of the utility model is cooperated by two locking nuts and the cooperation of upper lamination and lower lamination after buckling, the position of upper lamination and lower lamination in installation hole is conveniently fixed after installation, so as to conveniently fix the position of wave section pipe on support disc, the anti-wear gasket is cylindrical and can be freely inserted in the outer periphery of upper lamination and lower lamination after buckling, the position of anti-wear gasket on upper lamination and lower lamination is conveniently replaced, and the anti-wear gasket made of rubber material has the characteristics of wear resistance.

The anti-blocking cyclone separator comprises a cylinder section, an inverted cone section and an anti-blocking assembly, gas containing particles enters the cylinder section from a gas inlet pipe, the gas flows along the inner wall of the cylinder section and is guided to form a rotating vortex, and the gas flows downwards towards the inverted cone section in a spiral shape along the cylinder section; the particles are thrown to the inner wall of the inverted cone section under the action of centrifugal force, the particles lose inertia force and fall to the discharging pipe along the wall face, radial airflow in the center spirally rises to enter the exhaust pipe and is discharged, the piston rod is driven to retract, the rod portion of the piston rod drives the scraping sleeve to move downwards, and the outer edge of the scraping sleeve moves downwards along the inner wall of the discharging pipe; residues on the inner wall of the discharging pipe are swept into the material box, particles are scraped into the material box, the piston rod drives the scraping sleeve to automatically scrape along the inner wall of the discharging pipe, blockage is effectively broken, the residual particles are collected, the separation efficiency is kept in continuous operation, the shutdown maintenance requirement is reduced, and the working efficiency of the cyclone separator is improved.

This invention relates to the field of composite coating technology, specifically to a composite coating for an aluminum-silicon wire submerged roll, its preparation method, and its application. The method involves sequentially depositing CoCrW, CoCrW-Ca2SiO4, Ca2SiO4, and Si-SiC, or sequentially depositing Ca2SiO4 and Si-SiC, on the surface of the submerged roll using atmospheric plasma spraying (APS). Subsequent machining then yields a four-layer CoCrW / CoCrW-Ca2SiO4 / Ca2SiO4 / Si-SiC composite coating or a two-layer Ca2SiO4 / Si-SiC composite coating (hereinafter referred to as the composite coating) with a specified surface roughness. The composite coating prepared by the method described in this invention can withstand temperatures up to 900℃ and possesses excellent wear resistance and aluminum-silicon corrosion resistance, significantly improving the lifespan of the submerged roll.

The utility model discloses a double -sided marking device, including base, be provided with feeding mechanism and discharging mechanism on the base, be provided with conveying mechanism between feeding mechanism and discharging mechanism, still be provided with adjusting mechanism positioning device and reset mechanism along the conveying direction of conveying mechanism on the base, be provided with marking mechanism between positioning device and reset mechanism, the utility model has the beneficial effect that through feeding and discharging and conveying mechanism, realize full -automatic marking, reduce manual intervention, utilize laser to directly carve on material surface, make the mark have wear -resisting, corrosion -resistant and so on The advantage compares with traditional marking mode and need not ink or chemical reagent, and the mark is not easy to fade or fall off, reduces environmental pollution, meets the environmental protection requirement, and laser marking speed is fast, can promote the marking efficiency, and laser carries out marking, need not direct contact material, can avoid mechanical stress, reduces material deformation or damage.

The present application belongs to the technical field of printing materials, and relates to a composition for printing and a high-resistance surface-printed pearlescent film label. The present application directly adopts a surface printing process of a film (for example, a pearlescent film), that is, a special high-resistance ink and a varnish are directly printed on the film, and the printed film can be cut and used after printing, thereby achieving energy saving and emission reduction and greatly reducing the manufacturing time. The surface-printed label prepared by the present application can effectively replace a composite label, and the label material is single, which is a green, energy-saving and emission-reducing beverage label. As a surface-printed label, the surface ink has high resistance and can withstand the harsh environmental fluctuations in the flow process, has the characteristics of resistance to sunlight and weather, wear resistance, water boiling resistance, water soaking resistance, high temperature adhesion resistance, and improves the use experience of consumers.

The application discloses a surface coating of an induction coil of a medium-frequency welding machine and a preparation method thereof. The surface coating comprises a transition layer and a surface layer. The transition layer is composed of nickel-aluminum, aluminum oxide and coated powder in a weight ratio of 85-90:5-8:5-10. The surface layer is composed of aluminum oxide and potassium silicate in a weight ratio of 94-98:2-6. The coated powder is formed by coating zirconium diboride with calcium fluoride. The thickness of the transition layer is 30-150 microns. The thickness of the surface layer is 200-500 microns. The prepared coating has good bonding strength and insulation performance, and the preparation method is simple and efficient, and is suitable for various industrial applications.

The invention discloses a preparation method of hollow nano silicon dioxide / nano cellulose based hydrophobic nano paper. The preparation method specifically comprises the following steps: step 1, preparing softwood pulp fibers; step 2, preparing nano paper; step 3, preparing SiO2 modified nano paper; step 4, preparing a mixed solution B with DCM as a solvent and PLA as a solute; and step 5, preparing to obtain the hydrophobic nano paper. The nano paper prepared by the method has certain mechanical strength and flexibility, and also has stable and lasting hydrophobic performance, and the application range of the paper in the fields of humid environment, oil-water separation, water resistance and fouling resistance is widened. The invention further discloses the hollow nano silicon dioxide / nano cellulose based hydrophobic nano paper.

The microstrainer comprises a rack, a filter cartridge, a driving device, a backwashing device, a liquid level switch and an electric cabinet, the filter cartridge is transversely arranged on the rack, the front end of the filter cartridge is open, the rear end of the filter cartridge is closed, a baffle is arranged at the front end of the rack, a water inlet is formed in the baffle, a sealing ring is arranged on the edge of the water inlet, and the filter cartridge is arranged on the rack. The driving device comprises a water pump, a water inlet pipe, a water outlet pipe, a spray head and a pressure alarm, a water inlet of the water pump is connected with the water inlet pipe, a water outlet of the water pump is connected with the water outlet pipe, the water outlet pipe is horizontally arranged above the filter cartridge, and the spray head is connected with the pressure alarm. The pressure alarm is arranged at the joint of the water outlet pipe and the water pump, and the liquid level switch is fixed to the rack and located at the front end of the filter cartridge. Open type water inflow can be achieved, the water inflow amount is large, water pressure is stable, the structural process is simple, and maintenance is convenient.

A large-diameter hanging cable protection structure of a vertical ship lift comprises a protection body, the two sides of the protection body are fixed to a cable drag chain, a mounting hole is formed in the center of the protection body, and a hanging cable penetrates through the mounting hole. According to the large-diameter hanging cable protection structure of the vertical ship lift, safety protection of the cable can be achieved, and cable abrasion is avoided.

The utility model discloses a down jacket heat insulation fabric, and belongs to the technical field of garment fabrics. A down jacket heat insulation fabric comprises an outer layer, and a heat insulation layer, a down middle layer and a skin-friendly inner layer are sequentially arranged on the inner side of the outer layer. The outer layer, the heat insulation layer and the skin-friendly inner layer are sewn and fixed through sewing threads, the down feather middle layer is located between the heat insulation layer and the skin-friendly inner layer and filled with animal fibers, plant fibers and chemical fibers, the heat insulation layer is soaked in a zirconium oxide solution and naturally dried, and the zirconium oxide fibers can provide excellent heat insulation and corrosion resistance for the down jacket when serving as outer layer fabric. Through the multi-layer structural design, particularly the combination of the heat insulation layer and the down feather middle layer, the down feather down feather down feather fabric effectively isolates outside cold air, locks body temperature and provides an excellent warm keeping effect. The heat insulation layer is treated by a special weaving process and a zirconium oxide solution, so that the heat insulation performance is further enhanced.

The utility model relates to brake disc wheel end axle technical field, especially, a kind of maintenance-free brake disc wheel end axle, it include: axle housing assembly, maintenance-free wheel hub bearing unit assembly, wheel hub brake disc assembly.The carbon-tao brake disc in the utility model is installed on base by inlaying, base is locked to maintenance-free wheel hub bearing unit assembly, so that wheel hub brake disc assembly and maintenance-free wheel hub bearing unit assembly can be conveniently and quickly assembled to axle housing assembly, and the brake disc of wheel hub brake disc assembly is carbon-tao brake disc, with carbon fiber reinforced silicon carbide base composite material as main material, with high temperature resistance, wear resistance, high hardness, oxidation resistance and other advantages, longer service life, vehicle assembly driving million kilometers without replacement, can realize vehicle full cycle without disassembly and maintenance, it is used with maintenance-free wheel hub bearing unit assembly, to realize without needing to do regular maintenance treatment for wheel end, cost reduction, spare parts are also not easy to be damaged due to disassembly, higher safety.

The utility model relates to exhaust pipe processing frock technical field, concretely relates to a frock for exhaust pipe welding. Including workstation and the base for supporting workstation, the rotary cooperation between workstation and base, be equipped with first support seat and second support seat on the workstation, and first support seat and second support seat are used for the support of different orientation of exhaust pipe respectively. First support seat and second support seat all include main pillar, be equipped with detachable nylon limit card block on main pillar, be equipped with the arc slot of cooperation limit card and place exhaust pipe on nylon limit card block, the one side of main pillar of first support seat is equipped with high -level support subassembly, and the one side of main pillar of second support seat is equipped with low -level support subassembly. The utility model frock reduces manual intervention on the whole, reduces the labor intensity, protects the appearance quality of product, and convenient to dismount replacement, improved frock practicality and flexibility.