16results about How to "Improve the wrapping effect" patented technology

The application provides a lithium-rich lithium-iron material, a preparation method and application thereof, and belongs to the technical field of lithium ion batteries. The lithium-rich lithium-iron material comprises a core and a coating layer coated on the surface of the core. The material of the core is lithium-rich lithium-iron doped with a first doping element, and the material of the coating layer is carbon material doped with a second doping element. The first doping element comprises at least one of Ti, W, Ni, Ce and Co, and the second doping element comprises at least one of B, N, S, O and P. The lithium-rich lithium-iron material is used as a lithium supplement in a battery, so that the capacity of the battery can be further improved and the gas production amount can be reduced.

The utility model is applicable to the technical field of shock absorbers, and provides a universal contact pin type inflating tool, which is used for inflating an oil cylinder and a piston rod and comprises a clamping tool, an inflating air chamber and an inflating pressure head, the inflating air chamber is mounted on the clamping tool, the inflating pressure head is pressed on the piston rod in a sleeving manner, and the inflating air chamber is a flexible inflating block; the flexible inflation block, the inflation pressure head, the oil cylinder and the piston rod are matched, clamped and sealed to form an inflation space, so that the inflation condition is met, and inflation operation of the piston rod and the oil cylinder is achieved. According to the universal contact pin type inflation tool, on one hand, the inflation efficiency and the inflation effect can be greatly improved, on the other hand, sealing inflation of piston rods and oil cylinders of different sizes can be effectively achieved through the action of the flexible inflation block, meanwhile, the piston rods of different diameters are pressed in a sleeving mode through the action of the inflation pressure head, and the inflation efficiency is greatly improved. Sealing and air inflation of the piston rod with the step and the oil cylinder can be achieved, and therefore the air inflation universality is effectively improved.

The application relates to the technical field of pesticides, and particularly discloses a tetramethylpyrazine suspension agent with slow-release performance and a preparation method thereof. The tetramethylpyrazine is prepared into a suspension, so that the particle size of the tetramethylpyrazine can be controlled, and tetramethylpyrazine particles with a suitable particle size as a capsule core can be obtained without dissolving and emulsifying the tetramethylpyrazine technical material. The application overcomes the defect that the tetramethylpyrazine is difficult to adopt a traditional microcapsule coating process, and a capsule membrane formed by a melamine modified urea-formaldehyde resin prepolymer can hinder the degradation of the tetramethylpyrazine, thereby prolonging the persistence period of the tetramethylpyrazine suspension agent and improving the insecticidal effect of the tetramethylpyrazine pesticide.

According to the technical scheme, the stress relieving device comprises a relieving box and a relieving ring, supporting seats are installed at the positions, close to the front surface and the rear surface, of the bottom in the relieving box, sliding rods are installed at the tops in the supporting seats, springs are installed on the portions, located on the two sides of the supporting seats, of the outer surfaces of the sliding rods through spring seats, and the springs are connected with the relieving ring. An eliminating ring is installed at the tail end of the sliding rod, a driving motor is installed at the bottom in the eliminating box, a cam is installed at the end, located on the sliding rod, of an output shaft of the driving motor, overturning motors are installed at the two ends of the front surface of the eliminating ring, and overturning frames are installed on output shafts of the overturning motors. According to the stress relieving device in seamless pipe forming, the problems that an existing seamless steel pipe stress relieving mechanism cannot evenly beat a seamless steel pipe, the uniformity of generated vibration force is poor, and the stress relieving effect of the seamless steel pipe is affected are solved, the vibration uniformity of the seamless steel pipe is improved, and therefore the stress relieving effect of the seamless steel pipe is guaranteed.

The application provides a capacitor core, a capacitor and a manufacturing method and an electronic product, and relates to the capacitor field. The capacitor core manufacturing method comprises the following steps: obtaining an anode body; generating a first cathode layer on the anode body to obtain a first intermediate piece; the first cathode layer is a poly (benzodifuran dione) layer; generating a second cathode layer on the first cathode layer of the first intermediate piece to obtain a second intermediate piece; the second cathode layer is a poly 3,4-ethylene dioxythiophene film layer; and manufacturing a capacitor core based on the second intermediate piece. The method helps to improve the performance of the capacitor core and the capacitor manufactured by the capacitor core.

This invention relates to the field of electronic paste preparation technology, and discloses a low sheet resistance tungsten-copper electronic paste and its preparation method, comprising the following steps: Step 1, preparing tungsten-copper composite powder: spherical tungsten powder with a diameter of 1-10 μm and copper powder with a size of 1-3 μm are mixed by mechanical mixing, with a tungsten to copper weight ratio of 3:1-6:1. Before mixing, the copper powder needs to undergo graphene coating pretreatment; Step 2, preparing an inorganic binder: the inorganic binder includes, but is not limited to, the following components: glass powder, CuO, TiO2, La2O3, Pu6O11; Step 3, preparing an organic carrier: the organic carrier includes a solvent, an organic binder, and a thickener; Step 4, preparing the tungsten-copper paste. The tungsten-copper paste of this invention has widely available raw materials, a simple preparation process, and is suitable for mass production. Although graphene, a high-priced material, is added, the amount added is small and the performance is particularly excellent, making the cost of the tungsten-copper paste of this invention far lower than that of similar foreign products, resulting in a very high cost-performance ratio.

This application provides a lithium-rich manganese-based cathode material, its preparation method, and an electrochemical device. The lithium-rich manganese-based cathode material includes a substrate material and a coating layer. The coating layer includes a lithium hexafluorozirconate coating layer located on the surface of the substrate material and a fluoride coating layer located on the side of the lithium hexafluorozirconate coating layer away from the substrate material. The chemical formula of the substrate material is Li(Li₂)₃. x Mn a Ni 1‑a‑ b Al b )O 2‑δ Where 0.05≤x≤0.33, 0

The invention relates to a polyethylene glycol disintegrating tablet. The polyethylene glycol disintegrating tablet is prepared from the following raw materials in parts by mass: content, modified polyethylene glycol, a disintegrating agent and an auxiliary agent, wherein the modified polyethylene glycol is obtained by reacting n-octylamine with long-chain alkyl acrylate, then reacting with ethylenediamine and then reacting with activated polyethylene glycol; the activated polyethylene glycol is obtained by reacting monomethyl ether polyethylene glycol with N, N-carbonyldiimidazole. Modified polyethylene glycol is adopted as a package, the modified polyethylene glycol is prepared by reacting n-octylamine with long-chain alkyl acrylate and then reacting with ethylenediamine, and hydrophobic segments such as long-chain alkyl are introduced into a PEG long chain. The hydrophilic-lipophilic balance of the material can be regulated and controlled by introducing the hydrophobic segment; enhanced interaction in molecular chains endows the tablet with sufficient mechanical strength.

This invention provides a method for preparing a biological denitrification composite carbon source for wastewater treatment plants, belonging to the field of wastewater treatment. The method includes the following steps: 1. Crushing kitchen waste residue, treating it in boiling water, cooling it, and then fermenting it to obtain a carbon source fermentation broth; 2. Filtering the carbon source fermentation broth, adding an accelerator and straw fragments to the liquid-phase carbon source broth to obtain a liquid-phase carbon source, mixing the liquid-phase carbon source and solid-phase carbon source evenly, and crushing them to obtain a carbon source mixture; 3. Spraying an alkenylated polyvinyl alcohol solution onto the surface of the carbon source mixture, molding it, and drying it to obtain the aforementioned biological denitrification composite carbon source for wastewater treatment plants. The biological denitrification composite carbon source prepared by this invention can simultaneously and slowly release the solid and liquid components in the carbon source fermentation broth, and also promotes the effective utilization of the carbon source by denitrifying bacteria, exhibiting good denitrification utilization.

This invention discloses a method for manufacturing a traveling wave pump rotor, comprising the following steps: machining the outer shell, machining the base plate and the first injection-molded plate, machining the cover plate and the second injection-molded plate, machining the enclosure mechanism, and machining and forming the rotor. The manufacturing method of this invention is simple in its steps, which not only improves the integral machining quality of the traveling wave pump rotor, but also facilitates the formation of an injection-molded layer on the surface of the traveling wave blades, reducing friction and wear of the traveling wave pump rotor during operation, while also reducing noise and extending the service life of the traveling wave pump.

The utility model discloses spoke end conical sheet adhering equipment which is used for adhering a conical sheet to the end of a spoke and comprises a machine frame, a driving device and a driving device. The adhesion assembly is arranged on the rack and is provided with a placing part and a pressing head; the placing part is suitable for flatly placing the conical sheet; the pressing head is positioned above the placing part and is suitable for reciprocating along a vertical first direction relative to the rack; the displacement assembly is arranged on the rack and is provided with a containing groove and a displacement mechanism; the containing grooves are suitable for containing the spokes and enabling the ends of the spokes to be exposed in the second direction, and the second direction is perpendicular to the first direction. The displacement mechanism drives the spokes to do reciprocating motion in the first direction, so that the spokes are located on the placing parts and adhere to the conical sheets; and the pressing head moves downwards and presses the end part of the spoke after the conical sheet is adhered to the end part of the spoke. According to the adhesion equipment, the conical sheets can be automatically adhered to the ends of the spokes, the production efficiency is improved, and the labor cost is reduced.

This invention discloses a composite solid electrolyte and its preparation method, relating to the field of battery technology. The preparation method of the composite solid electrolyte includes the following steps: mixing raw materials for preparing a sulfide solid electrolyte and bismuth iodide, then sintering at a preset temperature for a preset time to obtain a bismuth iodide-doped sulfide solid electrolyte; coating the surface of the bismuth iodide-doped sulfide solid electrolyte with barium titanate to obtain the composite solid electrolyte; the mass of bismuth iodide accounts for 3% to 8% of the total mass of the raw materials for preparing the sulfide solid electrolyte. This invention uses bismuth iodide to dope and modify the sulfide solid electrolyte, improving air stability while enhancing the coating performance of barium titanate and reducing the impact of barium titanate coating on the ionic conductivity of the sulfide solid electrolyte. Simultaneously, barium titanate coating can further improve air stability and mitigate bismuth iodide doping defects, i.e., preventing bismuth iodide from absorbing moisture and preventing iodide ions from being oxidized by air.

The application discloses a preparation method of metal particles with core-shell structure, which comprises the following steps: preheating inert gas flow loaded with high-melting-point metal powder, and then passing into flowing low-melting-point metal vapor to make the low-melting-point metal condense on the surface of the high-melting-point metal powder to form a low-melting-point metal shell layer; the temperature of the low-melting-point metal vapor is T1, the preheating temperature is T2, T1>T2, and the difference between T1 and T2 is 50-200 DEG C. In the preparation method, the gas flow loaded with low-temperature high-melting-point metal powder is passed into the flowing high-temperature low-melting-point metal vapor; due to the temperature difference and the flowing state of the low-melting-point metal vapor, the low-melting-point metal can quickly condense on the surface of the high-melting-point metal, so that a uniform, composition-unsegregated and well-bonded coating layer is formed on the surface of the high-melting-point metal powder, and the mechanical properties of the composite material made of the metal particles with core-shell structure are improved.

The invention discloses a medium and low voltage power cable wrapping device and a method thereof, and relates to the technical field of cable production. The medium and low voltage power cable wrapping device comprises a rotating table, a through cable conveying pipeline is assembled in the rotating table, and a mounting frame is assembled on the side face of the rotating table; and the coating material storage roller is assembled in the mounting frame. According to the medium and low voltage power cable wrapping device and method, when a medium and low voltage power cable is wrapped, a wrapping material storage roller in a rotating state can drive a limiting disc to rotate synchronously, and a fixing plate, a first spring, a connecting block, a transmission rod, a limiting block, a transmission plate and a first elastic telescopic block are matched; by arranging the arc-shaped pressing plate, the arc-shaped pressing plate is used for pressing the coating material under the condition that the coating material on the coating material storage roller is sequentially and slowly reduced, so that the possibility that the coating material is loosened is reduced, and the coating effect of the coating material on the cable is improved.

The utility model discloses a knitted garment which comprises a relatively high-temperature and high-humidity area which is easy to form in the movement of a human body, and the high-temperature and high-humidity area is made of breathable antibacterial absorbing and discharging fabric; the low-temperature and high-humidity area is made of moisture-absorbing and warm-keeping fabric; the low-temperature and low-humidity area is made of a warm-keeping fabric; in the high-temperature and low-humidity area, except for the lower abdomen position of the female, the fabric of the high-temperature and low-humidity area should be made smooth and thin as much as possible so as to meet the comfort requirement of the product; and a targeted antibacterial and deodorant area. Partition functional design is arranged to accurately match with heat and humidity distribution characteristics of a human body, gradient hook-and-loop fasteners and waist stabilizing pieces are arranged at key exercise supporting portions, dynamic muscle supporting and blood flow optimization are achieved through multi-level pressure adjustment, the problem that traditional clothes are single in function and limited is solved, and the health care effect of the clothes is improved. Damp-heat dynamic balance, local pressure regulation and control and static wearing comfort in the motion state are considered, and the comprehensive performance of the garment is remarkably improved.