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19results about How to "Control Uniformity" patented technology
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High porosity raney nickel electrode and method of making same
ActiveCN121260821BHigh porosityImprove activity stabilityCell electrodesElectrolytic organic productionChemical solutionAlloy
The application provides a high-porosity Raney nickel electrode and a preparation method thereof, and relates to the technical field of Raney nickel electrodes and preparation thereof. The preparation method of the high-porosity Raney nickel electrode effectively controls the dealuminization rate and the pore uniformity through a preparation process of'sintering treatment + special electrochemical dealloying treatment', and stably prepares the high-porosity Raney nickel electrode. A new process for preparing the high-porosity Raney nickel electrode in an environmentally friendly manner is provided, which replaces the traditional corrosion pore-forming process of a strong alkaline chemical solution and reduces pollution. The prepared high-porosity Raney nickel electrode has a high porosity of up to 52%, and the pore structure is stable, so that the catalytic activity and mechanical stability of the electrode are effectively improved.
Owner:HUNAN ZHONGWEI NEW HYDROGEN MATERIALS TECHNOLOGY CO LTD
A 3D-printable all-inorganic perovskite flexible light-emitting gel, and a preparation method and application thereof
The application discloses a 3D-printable all-inorganic perovskite flexible light-emitting gel and a preparation method and application thereof, and relates to the technical field of perovskite. The method comprises the following steps: dissolving cesium bromide in water to obtain a cesium bromide aqueous solution; adding photo-curing precursor components into the cesium bromide aqueous solution in a certain proportion, and stirring uniformly to obtain a photo-curing precursor mixed solution; obtaining a photo-curing composite hydrogel; obtaining a flexible high polymer gel containing cesium bromide; and performing a spontaneous crystallization reaction, and then performing heat treatment on the gel to remove residual solvents. The perovskite precursors with large solubility difference are introduced into the photo-curing base material in two steps, respectively, so that the compatibility problem of the perovskite and the flexible base material precursor is solved.
Owner:NORTHWESTERN POLYTECHNICAL UNIV
A feed mechanized pipe conveying device
The application discloses a feed mechanical pipeline conveying device and relates to the field of feed production and conveying, which comprises a conveying pipeline and a conveying auger. The conveying pipeline comprises fixed pipes and movable pipes. The fixed pipes and the movable pipes are alternately distributed and coaxially arranged. At least one movable pipe is arranged. Two adjacent fixed pipes are connected through a connecting piece and coaxially arranged. Both ends of the conveying pipeline are fixed pipes, which are connected with a feeding bin and a discharging bin of the conveying pipeline, respectively. The movable pipe is connected with a rotating piece. When the conveying auger rotates, the conveying speed of materials at the movable pipe is changed through the rotation of the movable pipe. Through the arrangement of the movable pipe, the rotation speed of the main auger does not need to be changed. The material flow speed is accelerated or slowed down at the fixed pipes and the movable pipes. The movable pipe is arranged at the easy-blocking point and reversely rotates, the material advancing force of the area is enhanced, the blockage is effectively dredged or prevented, the movable pipe is arranged at the area needing buffering and rotates with the auger in the same direction, the material flow speed of the area is reduced, the buffering effect is achieved, and energy consumption is further reduced.
Owner:YUEYANG JIUSHENG MASCH MFG CO LTD
Chemically strengthened microcrystalline glass and preparation thereof
This invention provides a chemically strengthened glass-ceramic and its preparation. The chemically strengthened glass-ceramic includes a glass-ceramic substrate and a compressive stress layer formed on the surface of the substrate through ion exchange chemical strengthening. The glass-ceramic substrate comprises crystal family 1 and crystal family 2. Crystal family 1 includes crystals having the following structural formula: (Zn x Mg 1‑x‑y Al 2‑2y (Al) 2y Mg y O4, wherein: 0≤x≤1; 0≤y≤1; and 0≤x+y≤1; the crystal group 2 includes zirconium oxide; the compressive stress layer has a CTLD_saf value of 15000~70000 MPa. Compared with the existing LAS microcrystalline glass system, the chemically strengthened microcrystalline glass of the present invention not only has excellent mechanical properties and impact resistance, but also significantly reduces the overall cost.
Owner:湖北戈碧迦光电科技股份有限公司 +1
Top tray structure of roller scraping equipment
ActiveCN224057883USqueegee roller thickness adjustmentMeet the needs of useLiquid surface applicatorsCoatingsElectric machineryScrew thread
Owner:WUXI BEILAI TUBE CO LTD
Temporary storage and conveying device for pulverized coal
The utility model relates to the technical field of boiler pulverized coal conveying devices, and discloses a pulverized coal temporary storage and conveying device which comprises a tank body, a feeding pipe is arranged on the upper portion of the tank body, a charging pipe is arranged on the side edge of the feeding pipe, a feeding rod is rotationally arranged in the feeding pipe, a feeding screw is arranged on the upper portion of the feeding rod, and the feeding screw extends into the tank body; the rotary feeder is arranged at the bottom of the tank body, and the rotary feeder is communicated with the bottom of the tank body; the conveying pipe is arranged at the bottom of the rotary feeder, and the conveying pipe is communicated with the rotary feeder. According to the technical scheme, the rotary feeder composed of the shell, the feeding shaft and the feeding plates can prevent gas in the conveying pipe from entering the tank body while pulverized coal is conveyed, and the gap space between the feeding plates can be adjusted through the limiting blocks between the feeding plates, so that the amount of the pulverized coal entering the feeding plates can be controlled; therefore, the conveying amount and the uniformity of the pulverized coal can be controlled.
Owner:LINYI SHUANGDING THERMAL POWER CO LTD
A method for synchronously erecting multiple hydraulic cylinders
ActiveCN116025604BGet strain/stress changesControl UniformityRocket launchersServomotor componentsHydraulic cylinderControl system
The application relates to the field of rocket launching, and particularly discloses a synchronous erecting control method for multiple hydraulic cylinders, which comprises a simulation calculation process; a control system discriminates and operates the values of strain flowers A and the values of strain flowers B; the difference range epsilon threshold of the values of strain flowers A and the values of strain flowers B in the same group of erecting oil cylinders in the control system is measured 实测1 , epsilon 实测2 , epsilon 实测N / 2 , epsilon 实测1 , epsilon 实测2 , epsilon 实测N / 2 When the measured absolute value is greater than the epsilon threshold, the control system automatically and real-timely feeds back and controls the erecting oil cylinder. The scheme directly monitors the deformation and stress conditions of the left and right sides of the final erecting arm, and most truly reflects the erecting arm state, and is applicable to different mass center offset errors of different missile types without the need of re-adjustment, so that the adjustment efficiency is improved.
Owner:重庆零壹空间航天科技有限公司 +4
A triboelectric nanogenerator and its preparation method
PendingCN122092706AIncrease the effective contact areahigh yieldCoatingsFriction generatorsNanogeneratorMicrosphere
This invention provides a triboelectric nanogenerator and its fabrication method. The generator operates in a vertical contact-separation mode, with a positive friction layer of PET film and a negative friction layer of PDMS composite film with a single layer of dense SiO₂ microspheres inserted on its surface. The fabrication process employs a two-step spin-coating method: first, a PDMS solution is spin-coated onto a substrate; then, a suspension of SiO₂ microspheres is spin-coated onto the uncured surface. After heating and curing, a composite negative friction layer is formed, which is then assembled with electrodes and a support structure. This invention significantly increases the triboelectric contact area and enhances charge trapping capability by constructing the SiO₂ microsphere insertion layer, thereby greatly improving output performance. Furthermore, the fabrication process is simple and low-cost, making it suitable for powering microelectronic devices and self-powered sensing applications.
Owner:JIANGSU UNIV
Method for manufacturing an ultrasonic catheter, ultrasonic catheter and forming mold therefor
ActiveCN117774196BImprove acoustic performanceControl UniformityUltrasonic/sonic/infrasonic diagnosticsSurgeryCatheterParylene coating
The application discloses a manufacturing method of an ultrasonic catheter, the ultrasonic catheter and a forming die thereof. The manufacturing method of the ultrasonic catheter comprises the following steps: preparing an array stack; selecting a lead-out wire; coating a polymer material at a preset distance from one end of the lead-out wire to form a preformed tube; electrically connecting one end of the lead-out wire close to the preformed tube to the array stack; adopting split pouring to manufacture a sound-transparent protective layer coated on the periphery of the array stack and one end of the preformed tube close to the array stack; electrically connecting the other end of the lead-out wire away from the preformed tube to a circuit connector; and forming a Parylene coating layer on the outer surface of the sound-transparent protective layer. The Parylene coating layer enables the sound-transparent protective layer to better adapt to the vascular environment of the human body and meet the requirements for use in blood vessels. Therefore, the selection range of the manufacturing material of the sound-transparent protective layer is wider, and a material with a lower pouring temperature can be selected to manufacture the sound-transparent protective layer, so that the array stack is prevented from being separated due to heat, and the acoustic performance, consistency and qualification rate of the ultrasonic catheter are improved.
Owner:SHANGHAI SHENGYI ELECTRONIC TECH CO LTD
Diluting device for solid food and drug detection
ActiveCN224066447Ureduce lossesreduce stabilityPreparing sample for investigationPharmacy medicineMedicine
The utility model provides a dilution device for solid food and drug detection, which relates to the technical field of food and drug detection and comprises a support frame, a center plate is fixedly mounted on the support frame, a swing frame positioned above the center plate is hinged to the support frame, and a hydraulic rod is fixedly mounted in the center of the upper surface of the swing frame in a penetrating manner. The grinding plate is arranged, solid food and medicine placed on the center plate are ground through descending of the grinding plate, the situation that the particle size is too small due to excessive grinding can be avoided through grinding, and therefore loss or instability of effective components of medicine is reduced; the uniformity of the medicine can be better controlled through grinding of the grinding plate, and dosage deviation caused by uneven grinding is avoided.
Owner:青海省产品质量检验检测院(青海省食品检验检测院)
A laying device for chopped glass fiber mat
The utility model provides a kind of cloth device for glass fibre short cut felt, it is related to glass fibre short cut felt production and processing technical field, the cloth device for glass fibre short cut felt includes blanking mechanism, transfer mechanism, transfer mechanism is used to receive the glass fibre conveyed from blanking mechanism, and received glass fibre is transferred to the position of base cloth;Cloth mechanism, cloth mechanism is used to receive the glass fibre conveyed by transfer mechanism, simultaneously, glass fibre is scattered on base cloth by vibrating mode, this kind of cloth device, quantitative glass fibre conveying belt guide plate can be transmitted, and by controlling the continuous vibration of guide plate, glass fibre on guide plate can be evenly clothed to base cloth, simultaneously, glass fibre can also be actively conveyed by conveying belt, the thickness of cloth is conveniently controlled, glass fibre is not needed to be filled to base cloth by special staff, and use effect is good.
Owner:JIAXING HONGYU NEW MATERIALS CO LTD
Insulation coating thickness mechanical feedback adjusting tool
ActiveCN224237303UControl UniformityEasy to adjustLiquid surface applicatorsCoatingsGear wheelClassical mechanics
The utility model relates to the field of insulation coating, in particular to an insulation coating thickness mechanical feedback adjusting tool which comprises a device base, the top end of the device base is fixedly connected with a conveying mechanism, the top end of the conveying mechanism is fixedly connected with a guide seat, the top end of the guide seat is fixedly connected with a lifting frame, and the inner side of the lifting frame is movably connected with a lifting seat. A rack is arranged on one side of the lifting seat, a second servo motor is arranged on one side of the rack and located on the outer end face of the lifting frame, a coating roller is fixedly connected to the bottom end of the lifting seat, and a scraper is arranged behind the coating roller and located on the rear end face of the coating roller; a second servo motor is matched with a first transmission gear and a rack on the outer side of the lifting seat, so that the height of the lifting seat is adjusted, the coating roller can conveniently control an insulation coating thickness film, a third servo motor is matched with a third transmission gear to enable the coating roller to be in contact with a scraper blade, and the coating roller is prevented from being damaged. And the coating roller can be conveniently matched with the scraping plate to control the insulation coating uniformity.
Owner:HENAN CANON POWER MATERIALS CO LTD
Uniform mangle machine with gap adjusting device
The utility model relates to a uniform mangle expression vehicle with a gap adjusting device. The uniform mangle expression vehicle comprises a rack, a uniform roller, a roller, a gap adjusting mechanism and a pressurizing mechanism, the homogenizing roller is connected with a first transmission mechanism; the roller is connected with a second transmission mechanism; pressurizing mechanisms are connected to the two ends of the homogenizing roller; the gap adjusting mechanism comprises a servo motor, a mounting frame, a screw rod, a lifting block and an inclined plate. The utility model has the advantages that the cost is reduced, the applicability is strong, on the basis that the pressurizing mechanism pressurizes the uniform roller, the gap adjusting mechanism is arranged, the secondary adjustment of the roller gap is realized, and the uniformity of the line pressure is controlled more accurately.
Owner:BOLUWEI MACHINERY JIANGSU CO LTD
A high and low voltage integrated three-phase cylinder connector
This utility model relates to the field of connector technology, specifically to a high- and low-voltage integrated three-phase cylinder connector, which solves the problems of poor dimensional accuracy and uneven injection molding wall thickness in existing technologies. It includes a connector housing, on which a high-voltage connection component and a low-voltage connection component are provided. The high-voltage connection component includes a high-voltage housing, which is integrally injection molded with the connector housing. A copper busbar is provided on the high-voltage housing, extending from both ends. The advantages are: the copper busbar is first assembled onto the high-voltage housing to form the high-voltage connection component, and then the high-voltage connection component is embedded into the connector housing using an integral injection molding process, improving the positional accuracy of the high-voltage connection component on the connector housing; the low-voltage housing uses integral injection molding to fix and install the pins, improving the installation accuracy of the pins on the connector housing and preventing the pins from bending during injection molding with the connector housing; and improving the overall dimensional accuracy of the product structure.
Owner:HENAN THB ELECTRIC
Nickel composite materials suitable for improving vibration reduction and noise reduction performance and their preparation methods
PendingCN122082142AIncrease productivityControl UniformityFilament/thread formingMonocomponent synthetic polymer artificial filamentNickel substrateSpinning
This application relates to the field of processing fiber products, and particularly to a nickel composite material suitable for improving vibration damping and noise reduction performance, and its preparation method. This nickel composite material, by covering the surface of a nickel substrate with a dense nanofiber mesh extending through the internal pores of the nickel substrate, allows the fiber mesh to be uniformly and densely distributed on the nickel substrate surface, resulting in good hydrophobicity and better sound absorption, damping, and mechanical properties compared to an untreated nickel substrate. The preparation method precisely controls the microstructure of the fiber mesh and the improvement in sound absorption coefficient by setting the needle extrusion speed, spinning voltage, and the distance between the needle and the spinning plate. By controlling the spinning voltage and the distance between the needle and the spinning plate, the fibers can be uniformly coated on the surface of the nickel substrate and embedded in the pores, forming a strong interfacial bond. By setting predetermined spinning time and parameters, the nickel substrate can be processed in batches, and the deposition thickness of the fiber mesh is controllable.
Owner:TSINGHUA UNIVERSITY +1
A large-size tc4 titanium alloy beta phase region hot deformation method based on temperature-strain field synergistic regulation
The application discloses a large-size TC4 titanium alloy beta phase region hot deformation method based on temperature-strain field cooperative regulation, and the method comprises the following steps: firstly, a large-size TC4 titanium alloy round ingot is heated to a beta phase region temperature interval and kept warm; secondly, axial upsetting hot deformation is carried out to obtain a blank; thirdly, the blank is heated and kept warm; fourthly, the blank after the heating and keeping warm is once axially elongated after being rotated by 45 degrees along the original ingot axial direction; fifthly, the blank is twice axially elongated after being rotated by 90 degrees along the original ingot axial direction; and sixthly, the blank is thrice axially elongated after being rotated by 90 degrees along the original ingot axial direction to obtain a TC4 titanium alloy square blank. The application actively regulates the energy accumulation and recrystallization driving force of different regions by designing a multi-directional strain path and a thermal force coupling process window, guides the gradient ordered evolution of the regional recrystallization, and significantly improves the structure uniformity and process controllability of the large-size titanium alloy blank, and is suitable for the field of super-large titanium alloy forgings for aviation, aerospace and ships.
Owner:WESTERN TITANIUM TECH
Adhesive coating management method and system based on fusion vision
PendingCN121881634AAchieve positioningRealize requirementsGeometric CADLiquid surface applicatorsAdhesiveProcess engineering
The invention provides an adhesive coating management method and system based on fusion vision, and relates to the technical field of coating management, and the method comprises the steps: obtaining part design information, coating design information and material design information; obtaining a target coating model; the target vehicle body part is subjected to coating pretreatment; extracting coating area information, wherein the coating area information comprises a plurality of adhesive coating areas and a plurality of coating demand constraints; coating track fitting is carried out to generate a coating execution track; and in the adhesive coating process, a fusion vision unit is started to dynamically monitor the coating effect of the target vehicle body part. According to the method and the device, the technical problems of low efficiency and insufficient precision in coping with complex working conditions due to the fact that the thickness and the coverage range of the adhesive cannot be accurately controlled in the prior art can be solved, and the thickness and the uniformity of the adhesive layer are controlled, so that the technical effect of improving the coating precision and the coating efficiency is achieved.
Owner:JIANGSU SANNA TECH MATERIAL CO LTD
Preparation method of green low-heat-conductivity insulating brick suitable for outer wall
The invention relates to the technical field of building materials, in particular to a preparation method of a green low-thermal-conductivity insulating brick suitable for an outer wall, which comprises the following steps: S1, weighing industrial waste, clay, a foaming agent and reinforced fibers according to a ratio, and primarily mixing; s2, carrying out wet ball-milling treatment to obtain ball-milled slurry; s3, adding a binder and water into the ball-milled slurry, and carrying out stirring homogenization treatment to obtain homogenized slurry; s4, injecting the homogenized slurry into a mold, and molding through a compression molding process to obtain a green brick body; s5, performing low-temperature sintering treatment to obtain a sintered brick body; and S6, carrying out surface hydrophobic treatment on the sintered brick body to obtain a finished insulating brick product. According to the invention, by optimizing the raw material ratio, controlling the molding and sintering process and introducing the surface hydrophobic treatment, the coordination and unification of green raw material utilization, low thermal conductivity control and the moisture resistance of the brick body are realized.
Owner:SHANGLUO UNIV
Hydration heat inhibiting particles for concrete and preparation method thereof
PendingCN121800457Acontrol thicknessControl UniformityMicroballoon preparationMicrocapsule preparationIce waterPhase-change material
The invention relates to hydration heat inhibition particles for concrete and a preparation method thereof. The hydration heat inhibition particles are prepared by wrapping 65-75 wt% of phase change material particles with 25-35 wt% of shell layer composite material powder; the phase-change material particles are composed of 20-40 wt% of a low-temperature phase-change material and 60-80 wt% of a high-temperature phase-change material, the low-temperature phase-change material and the high-temperature phase-change material are subjected to high-temperature melting and uniform mixing, ice water is dripped into the mixture through a dripping nozzle for cooling granulation to prepare the phase-change material particles, then the phase-change material particles are placed in a disc granulator, and the shell composite material is added for granulation. The hydration heat inhibition particle for concrete prepared by the invention is uniform in shell thickness, high in structural stability, high in strength, good in sealing property, excellent in sphericity degree and good in concrete compatibility, and can tolerate 100 times of heat cycles at 20-80 DEG C without cracks; after being doped into concrete, the concrete admixture state can be improved, the temperature gradient in the concrete hydration period is remarkably reduced, and the cracking risk is remarkably reduced.
Owner:CHANGJIANG RIVER SCI RES INST CHANGJIANG WATER RESOURCES COMMISSION