22results about How to "Attached tightly" patented technology

The invention belongs to the technical field of lithium ion batteries, and discloses an amidated polyacrylic acid water-based polymer binder for a silicon-based negative electrode of a lithium ion battery and a preparation method and application of the amidated polyacrylic acid water-based polymer binder for the silicon-based negative electrode of the lithium ion battery. The preparation method comprises the following steps: under a protective atmosphere, sequentially adding 1-ethyl-(3-dimethylaminopropyl) carbodiimide hydrochloride, N-hydroxysuccinimide and levodopa, stirring to fully react, carrying out dialysis freeze-drying treatment to obtain a primary product PL, and uniformly mixing the PL with glycerol to obtain the product. According to the binder, a dynamic bond is successfully introduced, the transportation efficiency of lithium ions is improved, a three-dimensional network structure is constructed, adverse stress generated by volume expansion of a SiOx negative electrode material in the charging and discharging process of an electrode can be effectively inhibited, and the SiOx negative electrode shows good cycling stability.

This invention relates to the field of chlor-alkali electrolysis equipment, and more particularly to an assembly of independent unit bipolar ion-exchange membrane electrolyzers, comprising an assembly frame and multiple fixed frames. The assembly frame supports the fixed frames, and independent unit electrolyzers are mounted on the inner sides of each fixed frame via fixing bolts. Each independent unit electrolyzer includes a frame, with a composite plate fixedly connected to the center of the frame. The composite plate separates the cathode chamber and the anode chamber on both sides of the frame. Anode ribs are fixedly connected to the interior of each anode chamber, and an anode mesh is installed at the end of each anode rib away from the composite plate. This invention creates forced disturbance to the solution inside the anode chamber during continuous replenishment of refined brine, significantly improving solution mixing and flow efficiency, allowing the brine to fully contact the electrodes, and enhancing the completeness of the electrolysis reaction. Compared to traditional passive flow methods, the solution circulation effect is significantly improved.

The invention discloses a copper pipe coiling device for medical cabinet production, and particularly relates to the technical field of copper pipe coiling, the copper pipe coiling device comprises a supporting frame, an operation table is fixedly connected to the upper end of the supporting frame, baffles are fixedly connected to the upper end of the operation table in a bilateral symmetry mode, and coil adjusting assemblies are jointly arranged at the ends, close to each other, of the two baffles; a cleaning assembly is arranged on the front portion of the upper end of the operation table. According to the copper pipe coiling device for medical cabinet production, by arranging the adjusting mechanism and the fixing mechanism, corresponding adjustment can be carried out when the copper pipes with different diameters are used, the copper pipes are prevented from being too tight or too loose, uniform and flat coiling is guaranteed, the copper pipe coiling device can also adapt to copper pipes with different specifications or lengths, and the copper pipe coiling device is convenient to use. According to the copper pipe coiling device, the coiling space and the coiling efficiency are optimized, copper pipes are prevented from being deformed, extruded or dislocated in the coiling process, the production stability and the product quality are improved, and when copper pipes with different diameters are fixed, the coiling diameter can be adjusted according to the different diameters.

The invention relates to the technical field of electrode foil processing, in particular to a foil connecting device and method based on high-specific-volume electrode foil processing.The foil connecting device comprises a support, an electrode foil and a polypropylene film, the top of the support is fixedly connected with a top frame, and the two ends of the top frame are rotationally connected with conveying rollers used for guiding the electrode foil correspondingly; one side of the support is rotationally connected with a winding handle used for winding an electrode foil and a polypropylene film, the winding handle is oval, the top of the top frame is fixedly connected with a mounting frame, a fastening roller used for supporting the electrode foil is arranged at the top of the mounting frame, and movable rods are arranged at the two ends of the mounting frame correspondingly; and the outer surface of the movable rod is provided with a deviation rectifying ring for rectifying the electrode foil, and the two ends of the mounting frame are provided with deviation rectifying assemblies for driving the movable rod to swing correspondingly. And due to the design of the deviation rectifying assembly, the position of the electrode foil can be rectified in real time, the movable rod pushes the electrode foil back to the correct position in a dynamic abutting mode under the guide of the deviation rectifying ring, and it is ensured that the electrode foil is always kept at the correct position in the machining process.

The invention provides a waterproof roll dip-coating processing device which comprises a rack and an asphalt pool mounted on the rack, and is characterized in that a partition plate is connected between two side walls in the asphalt pool and divides the space in the asphalt pool into an upper part and a lower part, and the two ends of the partition plate are communicated up and down, so that an annular space is formed in the asphalt pool; a stirring mechanism for driving asphalt liquid to annularly flow is mounted on the partition plate and comprises two chains, a stirring plate, four chain wheels and a motor I; the four chain wheels are installed at the four corners of the partition plate respectively, the two chains are installed on the two chain wheels respectively, and the two chain wheels at one end of the partition plate are installed on a rotating shaft arranged at the end of the partition plate. The asphalt liquid circularly flows in the asphalt pool, so that the flowability of the asphalt is improved, the asphalt is more tightly attached to a matrix, and the production quality and the waterproof effect of the waterproof coiled material are improved.

The invention discloses a power cable fault detection device, which is characterized in that an opening is formed in the lower part of a rectangular frame, an arc-shaped notch is formed in the top surface of an inner cavity of the rectangular frame, arc-shaped plates capable of rotating and adjusting in opposite directions or back to back are hinged to two ends of the arc-shaped notch, the arc-shaped notch is matched with the two arc-shaped plates to form a detection cavity, and an opening corresponding to the opening is formed in the lower part of the detection cavity; an elastic conducting strip which is arranged along the inner wall of the detection cavity and is in interference abutting fit with the inner wall of the detection cavity is arranged in the detection cavity, elastic telescopic rods which are connected with the movable ends of the adjacent arc-shaped plates and used for pushing the two arc-shaped plates to move oppositely are arranged on the two side walls of the inner cavity of the rectangular frame, and an insulating rod used for supporting the rectangular frame is arranged on the opening side of the rectangular frame; the insulating rod body is provided with an indicating lamp in circuit connection with the elastic conducting strip. According to the invention, by sleeving the elastic conducting strip on the erected cable, cables with different diameters can be effectively and tightly attached, and great convenience is provided for subsequent electric leakage detection of the erected cable.

This invention relates to the field of biomaterials technology, providing a composite material for biomimetic repair of dental hard tissues, its preparation method, and its application. The preparation method of the composite material includes the following steps: mixing a carboxybetaine-phosphonic acid copolymer with a calcium salt to obtain solution A; adding an aqueous phosphate solution to solution A to carry out an in-situ reaction to obtain the composite material for biomimetic repair of dental hard tissues. In the composite material provided by this application, the carboxybetaine-phosphonic acid copolymer, under the action of calcium phosphate ions, can form an amelogenin-like nanoribbon structure, simultaneously driving amorphous calcium phosphate to undergo supramolecular self-assembly, constructing a composite material conforming to the "self-assembly-mineralization" synergistic mode. This composite material can directionally deposit dense enamel-like enamel pillar structures of hydroxyapatite crystals on the surface of demineralized enamel, efficiently inducing oriented structural regeneration of damaged enamel and significantly restoring the mechanical properties of demineralized enamel.

The invention provides conductive graphite slurry as well as a preparation method and application thereof, and the preparation method comprises the following steps: performing micro-oxidation treatment on graphite to obtain micro-oxidized conductive graphite; mixing the micro-oxidized conductive graphite, a solvent and a dispersing agent, and performing dispersion treatment to obtain micro-oxidized conductive graphite slurry; and performing nanocrystallization treatment on the micro-oxidized conductive graphite slurry to obtain the conductive graphite slurry. According to the preparation method, micro-oxidation and nanocrystallization strategies are utilized, so that the compatibility of graphite and other materials is remarkably enhanced, and the conductivity and dispersity of the graphite slurry are improved.

The present invention relates to the field of radiation refrigeration technology, and in particular to a radiation refrigeration film refrigeration performance test device, comprising a metal tank body, a cover body arranged on one side of the metal tank body, and a temperature measuring device arranged outside the cover body, the cover body is provided with an opening whose diameter matches the diameter of the thermocouple temperature sensing port of the temperature measuring device, a conduit is extended into the metal tank body at the opening, the thermocouple temperature sensing end of the temperature measuring device penetrates from the opening and extends into the metal tank body along the conduit, the top of the metal tank body is polished to form a superior arc surface, and the bottom of the metal tank body is a plane. The present invention has a simple structure, ingenious construction, low manufacturing cost, good sealing, and can quickly evaluate and test the radiation refrigeration performance of the film before coating, thereby reducing the test cost and improving the test accuracy.

The application relates to the technical field of composite material preparation, in particular to a metallurgical bonding nickel-coated copper rod and wire manufacturing method, which comprises the following steps of: copper core preparation, stirring T1 oxygen-free copper powder and borax adhesive, extruding and polishing to complete copper core preparation; shell preparation, selecting a nickel rod to cut and process into a nickel shell and a nickel back cover; smelting treatment, preparing a reinforcing agent, cleaning the inside of the nickel shell, smearing the reinforcing agent, putting the copper core into the nickel shell, and sending the nickel shell into a vacuum smelting furnace for sealed smelting treatment. In the application, various components in the reinforcing agent are mutually synergistic and mutually promoting, a dense metallurgical bonding layer is formed on the bonding interface of the nickel-coated copper rod, the atomic arrangement of the bonding layer is close and orderly, the bonding strength between copper and nickel is greatly enhanced, and the two kinds of metals are no longer simply mechanically bonded, but are firmly metallurgically bonded through mutual diffusion and chemical bonding between atoms.

The invention provides a display module and a display device.The display module comprises a light source substrate and a reflection cup cover, the light source substrate comprises a plurality of light-emitting elements arranged in an array, the reflection cup cover comprises a plurality of reflection cups connected with one another, each reflection cup is provided with an opening, and at least part of the area of a connecting part between every two adjacent reflection cups is provided with a groove; after the reflection cup and the light source substrate are arranged in an attached mode, the light-emitting element is located in the opening, the reflection face of the reflection cup faces the light-emitting element, and the sealed cavity is formed between the groove and the light source substrate, so that the adhesion of the reflection cup and the light source substrate is improved, local upwarp of the reflection cup in the using process can be effectively prevented, and the problem of uneven light emitting is solved.

The application discloses a turbine guide vane end wall cascade channel type assembly gap structure based on a transverse pressure gradient and belongs to the field of gas turbine turbine end wall cooling. The assembly gap is a cascade channel type structure with consistent axial cross section configurations, the pressure side wall surface is similar to the blade pressure surface profile, the suction side wall surface is similar to the blade suction surface profile, and the pressure side wall surface and the suction side wall surface jointly form a flow channel capable of generating a stable transverse pressure gradient; a leakage hole is formed in the seal piece. The seal cooling gas entering the gap from the leakage hole is actively regulated by the transverse pressure gradient, so that the seal cooling gas orderly migrates from the pressure side to the suction side and flows close to the wall surface, and the adiabatic temperature distribution in the gap and the gas film coverage of the suction side wall surface are significantly improved. Meanwhile, the leakage flow and the end wall gas film hole cooling gas synergistically act, the cooling effect and uniformity of the downstream surface of the end wall are enhanced, the net heat flux reduction amount is significantly improved, the mixing loss is reduced to a certain extent, and a good balance between efficient and uniform cooling and low aerodynamic loss is achieved.

The application relates to the technical field of radio frequency microwave transmission lines, in particular to a radio frequency coaxial cable with high temperature phase stability and low loss and a preparation method thereof, which comprises an inner conductor, a dielectric body, an outer conductor, an intermediate body, an outer shielding body and a sheath; the cross section of the dielectric body is in lotus core structure, the lotus core structure comprises an inner conductor wrapping layer, an outer conductor supporting layer concentrically arranged outside the inner conductor wrapping layer, and a plurality of reinforcing ribs are arranged at equal angles along the center of the inner conductor wrapping layer and the outer conductor supporting layer; and the reinforcing ribs, the inner conductor wrapping layer and the outer conductor supporting layer form fan-shaped through holes therebetween. The application solves the problem that the phase stability, transmission loss and mechanical phase of the radio frequency cable in the prior art cannot be considered simultaneously.

The invention relates to the technical field of labeling equipment, in particular to a label folding device for labeling a columnar workpiece and a labeling machine, U-shaped label paper to be folded is wound on the outer portion of the columnar workpiece, and the U-shaped label paper comprises an annular part arranged at the bottom of the columnar workpiece; the first label paper is arranged on the first side of the annular part, the second label paper is arranged on the second side of the annular part, and the label folding device comprises a conveying assembly and a folding assembly used for folding the U-shaped label paper so that the U-shaped label paper can be attached to the columnar workpiece; the conveying assembly comprises a conveying belt and a containing piece arranged on the conveying belt and used for containing the columnar workpieces, and the first label paper and the second label paper are sequentially arranged in the conveying direction of the conveying belt. The folding assembly comprises a first folding structure which is arranged at the upstream of the label folding station and is used for folding first label paper, and a second folding structure which is arranged at the downstream of the label folding station and is used for folding second label paper; label paper wound on a columnar workpiece can be folded, so that the label paper is completely attached to the columnar workpiece.

The utility model discloses a handle winding belt, which belongs to the field of handle winding belts, is used for being wound on holding parts such as a handle or a handle, and solves the technical problems that the handle winding belt cannot be repeatedly used and is not easy to assemble and disassemble, and a winding structure is easy to loosen. The utility model relates to a winding belt which comprises a winding belt, the winding belt is a spiral elastic body, the winding belt is wound on a grip, the grip is sleeved with an inner elastic fixing ring, the winding belt wraps the inner elastic fixing ring, and the inner elastic fixing ring and the winding belt are fixed through a hook-and-loop fastener.

The utility model relates to the technical field of packaging box surface labeling, and provides a packaging box surface labeling device which comprises a working table, a working box is fixedly connected to the top of the working table, a conveying belt is arranged at the top of the working table, a labeling assembly is arranged in the working box, and a positioning mechanism is arranged in the working box. According to the packaging box labeling device, when the surface of a packaging box needs to be labeled, a worker places the packaging box on the top of the conveying belt, the packaging box is conveyed into the working box through the conveying belt, at the moment, the worker starts a motor, a stress rod is stressed to enter a hydraulic cylinder, and at the moment, the hydraulic rod extends outwards; the hydraulic rod moves to drive the positioning plate to move, the positioning plate moves to push and position the packaging box on the top of the conveying belt, at the moment, the surface of the packaging box is accurately labeled through the labeling assembly, and through the technical scheme, the problem that in the prior art, the packaging box cannot be positioned is solved.

The utility model discloses an automatic attaching device of a conductive adhesive film for a circuit board, which comprises a workbench, the top of the workbench is fixedly provided with a conveying device body, the top of the workbench is fixedly provided with a supporting bottom plate frame corresponding to the lower part of a conveying belt of the conveying device body, and the rear side of the top of the workbench is fixedly connected with a rear supporting plate. According to the automatic attaching device of the conductive adhesive film for the circuit board, through the design of the side edge supporting plate, the mounting track, the mounting plate, the built-in frame, the limiting groove, the connecting plate, the limiting rod, the fixing threaded groove and the fixing bolt, the adhesive film sleeve is stably fixed in the built-in frame by utilizing tight combination of threaded connection and clamping connection; by means of the design, the dismounting and mounting process of the adhesive film sleeve is simplified, an operator can rapidly complete the replacement work of the adhesive film, the production efficiency is improved, the situation that the adhesive film shakes or falls off in the using process is effectively prevented, and the attaching quality is improved.

The utility model belongs to the technical field of laminating, and particularly discloses a surface laminating device which comprises a device frame, a conveying table is fixedly installed in the device frame, a laminating plate is conveyed on the conveying table, a fixing cylinder is fixedly connected to the inner side of the device frame, a sliding rod is slidably connected to the inner surface of the fixing cylinder in a sleeved mode, and a pressing plate is arranged on the sliding rod. The outer surface of the sliding rod is movably sleeved with a spring, the top of the spring is fixedly connected with the bottom of the fixing cylinder, and the bottom of the sliding rod is fixedly connected with a base. According to the surface laminating device, the rolling wheel can roll along the edge of a laminated plate through the edge pressing mechanism, so that a film is more tightly attached to the surface of the plate, the attaching stability is improved, meanwhile, continuous pressure and friction force can be provided, tight contact between the film and the plate can be ensured, and the laminating efficiency is improved. This sustained pressure contributes to the removal of air and any voids that may cause blistering or loosening of the film.

The present invention belongs to the technical field related to heat dissipation system, and discloses a circulating heat dissipation system based on Tesla valve. The system includes: two groups of Tesla valves; a collecting plate, which is a disc-shaped cavity structure, in which a heat exchange fluid is arranged, one surface of which is attached to the surface of the object to be dissipated, and the other surface is provided with a steam output port; two transport pipelines, one end of which is connected to the output port and the other end is connected to the middle of the first group of Tesla valves, and the other end of which is connected to the output port and the other end is connected to the middle of the second Tesla valve; a heat dissipation pipeline, the inlet of the heat dissipation pipeline is connected to the outlet of the two groups of Tesla valves, and the outlet of the heat dissipation pipeline is connected to the inlet of the two groups of Tesla valve tubes; a heat sink is provided in the middle of the heat dissipation pipeline. The present application significantly improves the heat dissipation performance, and is particularly suitable for small-volume heat dissipation devices that require rapid heat dissipation.

This utility model belongs to the field of edge-wrapping equipment and provides a fully automatic edge-wrapping device, including: a frame equipped with a support platform for placing the packaging film to be wrapped; a heating mechanism mounted on the frame, which can be moved closer to or further away from the support platform to ensure the heated packaging film adheres tightly to the product; a pressing mechanism and several auxiliary mechanisms, with the pressing mechanism movably positioned above the support platform. Compared with the prior art, the advantages of this utility model are that by heating the packaging film to adhere more tightly to the product surface, and with the pressing mechanism pressing the product onto the packaging film, while the peripherally distributed auxiliary blocks push the edge of the packaging film towards the side wall of the product, a uniform and wrinkle-free edge-wrapping effect is achieved. The entire edge-wrapping process requires no manual intervention, improving production efficiency, reducing labor costs, and ensuring the consistency and aesthetics of the packaging film when wrapped on the product, making it suitable for continuous industrial production.

This invention belongs to the field of water treatment denitrification technology, specifically relating to a strain-piezoelectric material synergistic denitrification system and its application. This strain-piezoelectric material synergistic denitrification system includes *Streptomyces* denitrifying bacteria and barium strontium titanate, with the barium strontium titanate loaded on the surface of the *Streptomyces* denitrifying bacteria. This invention induces a piezoelectric effect in the barium strontium titanate through mechanical feeding, providing an electron donor for the *Streptomyces* denitrifying bacteria, thus improving electron transfer efficiency and consequently increasing denitrification efficiency. Experiments show that under optimal conditions of 0.5 g / L barium strontium titanate concentration and 400 r / min stirring speed, the total nitrogen and nitrate nitrogen removal rates of this system are higher than those of strain DD alone, while the total organic carbon removal rate is also significantly improved.