59results about How to "Structural damage is small" patented technology

The invention relates to a micro-nano aggregate based on silanized calcium sulfate whisker in-situ polymerization, the main component of the micro-nano aggregate is acrylate copolymerized CSW / NS-GO, and the preparation method comprises the following steps: loading nano silicon dioxide on the surface of calcium sulfate whisker to obtain CSW / NS; carrying out silanization modification on CSW / NS; preparing graphene oxide by a Hummers method; and carrying out in-situ polymerization to prepare the acrylate copolymerized CSW / NS-GO. Calcium sulfate whiskers are loaded and bonded with epoxy modified nano silicon dioxide and then subjected to in-situ polymerization with graphene oxide in an acrylic monomer, a polymer chain is tightly combined with a functional group of CSW / NS-GO, good interface bonding is formed, and the strength and toughness of the composite material are improved. The acrylate copolymerized CSW / NS-GO has a microscopic three-dimensional network structure and excellent stability, so that the internal structure of the concrete is more compact, the porosity is reduced, the permeation of water is prevented, and the invasion of harmful substances such as chloride ions and sulfate ions into channels is reduced, thereby reducing the structural damage caused by environmental factors such as dry-wet cycle and freeze-thaw cycle; the durability of the concrete is improved.

The invention discloses an impact type rotating wheel hollow water bucket structure and a manufacturing method thereof, and relates to the technical field of hydroelectric power generation, in particular to the manufacturing method of the impact type rotating wheel hollow water bucket structure, which comprises the following steps: S1, preparing an impact type rotating wheel hub and a water bucket root solid area through forging, milling, polishing and other process means; s2, calculating a water bucket hollow part model through the working stress of the rotating wheel; and S3, the prepared rotating wheel hub is clamped to a positioner, and according to the model calculated in the above steps, the additive manufacturing of the rotating wheel hollow water bucket is achieved by continuously and cooperatively adjusting the spatial position of the rotating wheel and the posture of a welding gun. The invention has the advantages of reducing the weight, improving the stability, reducing the inertia, prolonging the service life, saving the cost, promoting the sustainable development, optimizing the structural design, improving the performance, improving the efficiency, reducing the energy consumption, being convenient to manufacture and maintain and enhancing the adaptability.

The invention discloses a single-walled carbon nanotube conductive paste and a preparation method and application thereof, and relates to the technical field of materials. The single-walled carbon nanotube conductive paste provided by the invention comprises the following components in percentage by weight: 0.2%-2% of modified single-walled carbon nanotubes, 0.2%-2% of a coupling agent, 0.1%-2% of a coupling agent and the balance of a solvent, wherein the modified single-walled carbon nanotube comprises a coupling agent modified single-walled carbon nanotube; 0.1%-1% of graphene; wherein the graphene at least comprises single-layer graphene; 0.5%-2% of a total surfactant; 0.5%-2% of a total dispersant; and the total solvent accounts for 93%-98.7%. The single-walled carbon nanotubes are not easy to agglomerate, and have good dispersibility and stability in the single-walled carbon nanotube conductive paste, so that the stably dispersed single-walled carbon nanotube conductive paste is formed.

A milling wireless vibration measurement cutter handle manufacturing system based on FPC flexible packaging comprises a milling machine, a wireless intelligent cutter handle arranged on the milling machine, a cutter located at the tail end of the wireless intelligent cutter handle and a workpiece arranged opposite to the cutter, the wireless intelligent cutter handle is connected with an upper computer in a wireless mode and transmits three-way vibration signals of the cutter handle position in the cutting process, the three-way vibration signals are processed and analyzed through the upper computer through an artificial intelligence algorithm, the cutter abrasion value is monitored in real time, the remaining life of a cutter is predicted, and cutting parameters are optimized. And more reasonable cutting parameters are provided for cutting machining of the workpiece, and the service life of the cutter is prolonged. The reduction of strength and rigidity caused by the damage of the original cutter handle structure is made up through the composite material, and the feasibility in a high-speed and high-precision cutting processing task is ensured; meanwhile, the signal acquisition module and the charging module are flexibly distributed on the outer cylindrical surface of the knife handle based on the FPC, the overall size of the intelligent knife handle is minimized, and the applicability in the complex path working condition is guaranteed.

The quartz product degreasing and cleaning device comprises a pot body and a cover body arranged on the pot body, a containing cavity is formed in the pot body and comprises a containing space used for containing a quartz product and a supporting space located below the containing space, and a supporting piece used for supporting the quartz product is arranged in the supporting space; the supporting piece is provided with a plurality of supporting parts extending in a strip shape on the bottom wall of the containing cavity, and a collecting area used for collecting grease is formed among the multiple supporting parts. The pot body and the cover body are matched to provide a micro-pressure cleaning environment, the liquid medium in the pot body is heated to be boiled, the cleaning effect on the quartz product is improved, evaporation of the liquid medium is reduced, and diffusion of steam with dissolved lipid substances is reduced. And the supporting piece limits the displacement of the quartz product, so that the structural damage caused by collision between the quartz product and the pot bottom is reduced. Part of pollutants difficult to dissolve fall into the collecting area after being separated from the quartz product, so that the pollutants are prevented from being in contact with the quartz product again, and repeated pollution to the quartz product is avoided.

The automatic compensating and avoiding device of the construction hoist comprises a mounting bracket, a hoist body is arranged on the mounting bracket, and the hoist body is connected with the mounting bracket in a matched mode; a traction device is arranged on the mounting bracket and is fixedly connected with the elevator body; a plurality of wind direction and wind speed detection sensors are arranged outside the mounting bracket; the elevator body is provided with a data analysis processor which is electrically connected with the wind direction detection sensor and is used for analyzing and processing detection data; a driving controller is arranged on one side of the data analysis processor, the driving controller is electrically connected with the data analysis processor, the driving controller is electrically connected with the traction device and the anti-falling safety device, and whether an output result analyzed by the data analysis processor belongs to a non-Gaussian turbulence excitation state or not is judged through the controller. And if yes, the operation state of the construction hoist is adjusted through the traction device and the anti-falling safety device. The invention aims to solve the problem of safe operation of the construction hoist during buffeting under the excitation of canyon wind non-Gaussian turbulent flow.

The present application relates to the technical field of sample pretreatment automation, and discloses a system of a full-automatic sampling tube cap screwing and pipetting workstation and a running method thereof.The system comprises a motion point definition module, a cap screwing adaptation identification module, a label scanning module, a pipetting planning and execution module, a cap screwing torque calling module and a real-time torque acquisition module.The system realizes continuous scanning and reliable identification of the cap profile in the motion state through a dynamic coordinate system and key motion points, dynamically calls matched torque parameters to execute cap screwing according to the identification result, and simultaneously acquires real-time torque data.The system synchronously completes sample label information analysis, pipetting path planning and pressure monitoring.The scheme realizes adaptive perception and closed-loop cap screwing control of the cap state, and improves the robustness of cap identification, the consistency of cap screwing action and the reliability of the overall process.

The utility model relates to the technical field of bridge water drain pipe installation construction, aims to solve the problems that in the prior art, a gap between a water drain pipe and a bridge preformed hole cannot be filled or is not evenly and densely filled, the appearance of a bridge is prone to pollution, and a bridge structure is prone to being eroded by rainwater, and provides a sealing installation structure for a bridge water drain pipe. The bridge is provided with a concave grating well, the bottom surface of the grating well is provided with a preformed hole, and the preformed hole penetrates through the bridge; a galvanized steel pipe is arranged in the preformed hole, the diameter of the galvanized steel pipe is smaller than the inner diameter of the preformed hole, and concrete is arranged in a gap between the galvanized steel pipe and the preformed hole; one end of the galvanized steel pipe away from the grating well is away from the bottom surface of the bridge; a PVC pipe is arranged at the bottom of the bridge, arranged on the galvanized steel pipe in a sleeving mode and attached to the beam bottom face of the bridge. The utility model has the beneficial effects that the sealing effect is good, the bridge is filled uniformly and densely, and the bridge is not easy to pollute and erode.

The application discloses a longitudinally foldable water-air dual-purpose propeller, and belongs to the technical field of cross-medium aircraft propulsion, comprising a new-configuration hub, a longitudinal folding mechanism, a limiting structure and a down-bending propeller blade with a preset down-bending angle; the configuration of the propeller enables the down-bending propeller blade to be completely unfolded to form a first working configuration through centrifugal force in air, and the down-bending propeller blade to be passively folded and limited to form a second working configuration through hydrodynamic lift in water; the longitudinally foldable water-air dual-purpose propeller can automatically complete mode switching according to the difference between working media without any active control mechanism, and can maintain high efficient propulsion performance in both media.

The invention discloses a regeneration method and application of an iron-based catalyst. The regeneration method of the iron-based catalyst comprises the following steps: S1, contacting an inactivated iron-based catalyst with a regeneration solution for pretreatment to obtain an intermediate product; the regeneration solution comprises N-methyl pyrrolidone, and the concentration of the N-methyl pyrrolidone is greater than or equal to 3%; s2, roasting the intermediate product to obtain a regenerated iron-based catalyst; the roasting temperature ranges from 250 DEG C to 300 DEG C. The regeneration method of the iron-based catalyst provided by the invention is high in regeneration efficiency, and the prepared regenerated catalyst is good in catalytic performance.

The utility model relates to the technical field of metering screen installation, and discloses a metering screen telescopic frame which comprises a frame body, a one-way lead screw is vertically and movably connected to the middle position in the frame body, and a first threaded sleeve is connected to the outer portion of the one-way lead screw in a threaded mode. When the metering screen telescopic frame is used and a metering screen is installed at the front end of the frame body, the rotating handle is rotated on the right side of the movable seat to drive the bidirectional lead screw to rotate, and the two sets of second threaded sleeves can be used for driving the two sets of installation plates to move inwards or outwards at the two sides of the front end of the movable seat while the bidirectional lead screw rotates. By adjusting the mounting distance between the two groups of mounting plates, metering screens with different widths and sizes can be mounted during mounting of the metering screens, the adaptability of the telescopic frame is improved, and after the two groups of mounting plates are adjusted to proper positions, mounting of the metering screens is assisted by using preformed holes in the mounting plates, so that the mounting efficiency is improved. The problem that a metering screen is inconvenient to adjust and install is solved.

The utility model discloses an agricultural machinery soil turning device, including buffer connecting device, through buffer connecting device connection traction machinery, frame, the frame passes buffer connecting device fixed mounting, the frame has the mouth of installation, the frame is fixedly installed with the support board in the one end away from the mouth of installation, through support board with the frame is equipped with the wheel, the pivot, the pivot rotatory mounting is in the mouth of installation, the pivot is fixed with the rotating roller, a plurality of soil turning hooks are installed to the outer wall department of rotating roller, when the wheel is used to the land surface, and the soil turning hook is driven into the soil after the rotating roller, drive arrangement, drive arrangement passes through support board device, and drive arrangement is equipped with transmission unit between cooperation with the pivot, and this device can buffer when having greater impact force.

This utility model relates to the field of feeding machine technology, and in particular to a blocking and rewinding mechanism for feeding coiled materials such as lithium battery aluminum foil. It includes a blocking terminal block that can swing up and down, a pulling steel wire rope that can drive the blocking terminal block to swing up and down, and a rewinding and rewinding control assembly that can rewind and release the pulling steel wire rope. The front end of the pulling steel wire rope is connected to one side of the blocking terminal block to drive the blocking terminal block to swing. The rewinding and rewinding control assembly includes a traction sleeve that allows the right end portion of the pulling steel wire rope to pass through and extends forward and backward, and can move back and forth. The rear end of the pulling steel wire rope is located behind the traction sleeve and is connected to an anti-rotation assembly to prevent the pulling steel wire rope from rotating during the rewinding and rewinding process. The anti-rotation assembly is supported behind the traction sleeve, making it more flexible and convenient to operate.

The embodiment of the invention relates to a high-entropy sulfide material for a lithium ion battery negative electrode and a preparation method and application thereof, and belongs to the technical field of lithium ion batteries. The embodiment of the invention aims to solve the technical problems of poor ionic conductivity, low reversible capacity and poor cycling stability of a lithium ion battery material. The preparation method of the high-entropy sulfide material for the negative electrode of the lithium ion battery in the embodiment of the invention specifically comprises the following steps: step 1, dissolving metal salt and potassium citrate dehydrate in deionized water to obtain a solution A; dissolving potassium ferricyanide in deionized water to obtain a solution B; 2, mixing the solution A and the solution B, stirring, and drying in a drying oven to obtain a precursor C; and step 3, adding powdered sulfur into the precursor C, mixing, calcining, centrifugally washing with absolute ethyl alcohol for three times, and drying, thereby obtaining the product. According to the high-entropy sulfide material provided by the invention, the specific capacity and coulombic efficiency of a lithium ion battery are remarkably improved, and the high-entropy sulfide material has relatively good rate capability and cycling stability.

The utility model belongs to the field of aviation aircraft structures, and relates to a control surface rotation limiting structure of a freight unmanned aerial vehicle. The limiting structure comprises an elevator right connector, an elevator left connector, a horizontal stabilizer right support connector and a horizontal stabilizer left support connector. The elevator right joint and the elevator left joint are respectively arranged at two ends of the elevator front beam; the horizontal stabilizer right support connector and the horizontal stabilizer left support connector are both connected with an airplane horizontal stabilizer. The elevator right joint is rotatably connected with the horizontal stabilizer right support joint, and the elevator left joint is rotatably connected with the horizontal stabilizer left support joint; limiting ribs are arranged on the elevator right connector and the elevator left connector, and the limiting ribs limit rotation between the elevator and a horizontal stabilizer based on a limiting plane. The limiting structure is high in limiting capacity, the structure can be integrally machined and formed, and follow-up disassembly, assembly and maintenance are facilitated.

The utility model relates to building structure field especially, and more particularly to a building structure's sliding base, including first mounting seat, first mounting seat left and right sides all are provided with second mounting seat, first mounting seat inside is provided with the connecting block of sliding type, the first mounting plate is provided with in connecting block top, first mounting seat inside left and right both parts all are provided with first damper, all are provided with first spring on first damper, first damper inside all are installed with contact block, and contact block all can contact with connecting block, first mounting plate top all are provided with connecting plate, and the second mounting plate is slidably connected on connecting plate. The utility model through horizontal sliding and contact block, first damper and rubber pad synergic effect high -efficient dissipation horizontal energy and automatic reset, utilize disc spring and multiple group damper series combination, realize vertical direction's multistage high -efficient buffer and energy dissipation, reduce structural damage, prolong the service life of building, and installation maintenance are convenient.

The utility model discloses an assembly type heat preservation and sound insulation board which comprises a main wall board and a line pipe assembled on the front side of the interior of the main wall board, an assembly clamping sleeve is fixedly installed on one side of the main wall board through a flexible board, an assembly protruding board is fixedly installed on the other side of the main wall board through a flexible board, and a threaded sleeve is fixedly installed on the back of the assembly clamping sleeve. The utility model relates to the technical field of assembly type wallboards. According to the assembly type heat preservation and sound insulation board, through cooperation of the flexible boards and the expansion joints, joints can be flexibly connected when the sound insulation board is assembled, vibration energy can be absorbed through flexible connection, force transmitted to a wallboard is reduced, structural damage is reduced, and cracking or falling caused by stress concentration can be avoided; and through cooperation of the wire pipes and the wire arrangement holes, wiring operation of workers in the later period is facilitated, and the situation that during wiring, the workers need to groove the surface of the sound insulation board manually, the overall structure is damaged, and the sound insulation and heat preservation performance is low is avoided.

The present invention provides a pedestrian crosswalk pavement snow-melting and ice-melting system using far-infrared ceramic materials, including a pressure power generation and power supply excitation device and a plurality of groups of heating plate improvement devices, wherein the pressure power generation and power supply excitation device is installed at the interface between the curbstone and the sidewalk pavement, and the plurality of groups of heating plate improvement devices are evenly installed at the lower part of the road warning paint of the road indicator line, and the pressure power generation and power supply excitation device is connected to the heating plate improvement device through an electric wire; the pressure power generation and power supply excitation device is stepped on to generate electric energy to supply power to the heating plate improvement device, and the heating plate improvement device generates heat to melt snow and ice on the pedestrian crosswalk pavement. The pedestrian crosswalk pavement snow-melting and ice-melting system using far-infrared ceramic materials described in the present invention uses the self-heating material properties of far-infrared ceramic materials in winter to give the pedestrian crosswalk zebra crossing coating practical functions, and melts the snow on the surface of the highway pedestrian crosswalk area through a matching excitation device.

The invention discloses a graphite composite material as well as a preparation method and application thereof. The material comprises graphite and a composite porous carbon layer coating the graphite, the composite porous carbon layer contains hard carbon and graphitized carbon, the graphite composite material is prepared from the raw materials of the composite porous carbon layer, the graphite and an oxygen-containing pore-forming agent, the raw materials of the composite porous carbon layer comprise a hard carbon precursor and a graphitized carbon precursor, and the oxygen-containing pore-forming agent is prepared from the hard carbon precursor and the graphitized carbon precursor. The mass ratio of the graphite to the total mass of the raw materials of the composite porous carbon layer is less than 28: 1, and the mass ratio of the graphitized carbon precursor to the hard carbon precursor is more than 1: 1; the ratio of the total mass of the raw materials of the composite porous carbon layer to the mass of the oxygen-containing pore-forming agent is more than 10: 1. When the graphite composite material disclosed by the invention is prepared into a negative electrode material of a secondary battery, the graphite composite material has excellent quick charging performance and good cycling stability, and a new possibility is developed for high-performance battery application in multiple fields of electric automobiles, portable electronic equipment, energy storage systems and the like.

The invention relates to the technical field of proton exchange membrane electrolyzed water, in particular to a preparation method and application of a composite proton exchange membrane. The migration of noble metal ions in the membrane is realized by utilizing pH gradient and ion gradient, the noble metal ions are doped into one side of an anode of the membrane, uniform distribution of noble metal particles in the membrane is realized by utilizing a longitudinal dipping mode, and then the time of reduction through in-situ sodium borohydride is controlled, and the doping amount of a hydrogen elimination catalyst is controlled, so that the hydrogen elimination efficiency is improved. And preparing the ultralow noble metal loading capacity composite membrane. The composite proton exchange membrane is prepared through precious metal impregnation reduction, the performance is guaranteed, meanwhile, the hydrogen permeation amount of a membrane electrode is reduced, the hydrogen content in anode side oxygen is reduced, the product purity is improved, and meanwhile, the safety is improved. The uniform distribution of the noble metal fully improves the utilization rate of the catalyst, so that the catalyst coating film can obtain an excellent hydrogen elimination effect when a small amount of noble metal is impregnated.

The utility model provides a simple Bailey truss dismantling system, which comprises a supporting platform, a supporting platform, an upper frame, a lower frame, a lower frame, an upper frame, a lower frame and a lower frame, and is characterized in that the supporting platform is fixed on a roof upper frame and positioned above a squat silo dome; the annular steel wire rope is fixed in the squat silo dome, and the annular steel wire rope is wound by a circle in the circumferential direction of the squat silo dome; the first lifting assembly comprises a first lifting rope, the first lifting rope is arranged in the circulation fan opening in a penetrating mode and connected with one bailey truss in the multiple bailey trusses, and the first lifting assembly is used for lifting the bailey trusses; and the second lifting assembly comprises a second lifting rope, the second lifting rope is arranged in the grain inlet in a penetrating mode and connected with one bailey truss, and the second lifting assembly is used for lifting the bailey truss. Existing design holes, namely a circulation fan opening and a grain inlet, are fully utilized. Holes do not need to be reserved or secondarily formed in the squat silo dome, damage to the structure of the squat silo dome is small, and the hidden danger of leakage is small. Therefore, the overall structural strength of the squat silo dome is improved.

The utility model discloses an active carbon dehydration technology field's centrifugal spin -dryer for active carbon dehydration, including drive base, the top of drive base is installed with centrifugal dehydration jar, and the both sides of drive base still are provided with drainage component respectively, and drainage component includes support box frame, and the top of support box frame is connected with filter part, and the top side of centrifugal dehydration jar is connected with sealing cover, and the inside of centrifugal dehydration jar is provided with centrifugal filter, and the power transmission connection between drive base and centrifugal dehydration jar and the centrifugal filter structure of the inside careful design of centrifugal dehydration jar, can rapidly and efficiently complete the dehydration treatment after active carbon water washing, and the tacit cooperation of the drive base of electrified operation with first connecting disc and second connecting disc, accurate drive centrifugal cylinder body carries out high -speed rotation, and under the action of the powerful centrifugal force of active carbon granule, the free water remaining in its inside and surface can be effectively spun out, realizes the non - destructive dehydration of active carbon granule.

The utility model provides a flip light-emitting diode, an LED core particle and a light-emitting device. The flip light-emitting diode comprises a substrate; the semiconductor lamination layer is positioned on the front surface of the substrate and is divided into a plurality of core particles, and scribing channels are formed between the adjacent core particles; the reflecting layer covers the upper part and the side wall of the semiconductor lamination layer and the upper part of the scribing channel; wherein the reflecting layer positioned above the scribing channel is provided with at least one groove, and the groove extends from the reflecting layer to the direction of the substrate. The reflecting layer covering the scribing channel area is pre-etched to form the groove, and the splinter path is located in the groove when the LED core particle is segmented, so that the structural damage of splinters to the reflecting layer at the edge of the core particle is reduced, the undesirable phenomenon of structural stripping or crack extension at the edge of the reflecting layer due to the splinters is avoided, and the service life of the LED chip particle is prolonged. The sealing performance of the reflecting layer to the LED core particles is effectively improved, water vapor invasion is blocked, and the product quality reliability and the service life are ensured.

This utility model discloses a precision parts sorting and packaging device, specifically relating to the field of parts sorting technology. It includes a support assembly, a movable assembly installed within the inner cavity of the support assembly, a limiting assembly installed near the center of the support assembly, a sorting assembly installed near the center of the limiting assembly, and a discharge assembly installed near the center of the support assembly. This precision parts sorting and packaging device, through its designed sorting and discharge assemblies, achieves rapid sorting, adapting to the needs of batch sorting of precision parts. It increases the number of sorting operations per unit time, ensuring overall process efficiency. Furthermore, the cylinder thrust can be precisely controlled by adjusting the air source pressure, allowing for the setting of appropriate thrust based on the part material and structural strength transmitted by sensors. This avoids deformation, breakage, or surface damage to parts due to excessive thrust, reducing the impact of impact vibration on precision parts.

The present application relates to the technical field of mineral material microcharacterization, and in particular to a method for dispersing clay mineral monolayer suitable for transmission electron microscope observation. The method for dispersing clay mineral monolayer based on stage alcohol intercalation and exfoliation comprises the following steps: dispersing clay mineral in deionized water to obtain a clay mineral suspension system by stirring; adding small molecule alcohol to the suspension system first and then adding macromolecular alcohol, and stirring to obtain a dilute dispersion system; performing ultrasonic treatment to make the clay mineral form a dispersion system mainly in monolayer or few-layer structure; dropping onto a carrier film for transmission electron microscope to make the lamella spread on the surface of the carrier film; and observing by using a transmission electron microscope. The present application is conducive to obtaining clay mineral monolayer samples with good dispersion and complete structure, and is suitable for morphology and structure characterization under transmission electron microscope.

This utility model relates to a ladle casting bottom structure, comprising: a permanent bottom lining, at least one layer of slag line bricks, a ring working lining, a nozzle seat brick, a permeable brick, a surrounding brick layer, a casting bottom lining, a casting interlayer, and a ring wall permanent lining. The beneficial effects of this utility model are: it solves the problem of brick joint erosion caused by molten steel impact; the structural improvements help improve construction efficiency and reduce maintenance costs; the structural improvements help improve steel yield; the structural improvements help improve structural strength and durability; the ladle casting bottom structure is primarily a movable bottom casting structure, which is convenient to construct and easy to repair, allowing for localized excavation and repair; in actual use, this ladle casting bottom structure has a long service life and can be used continuously for more than 80 steelmaking processes at once; this ladle casting bottom structure is suitable for bottoms constructed with shaped brick masonry.

The utility model relates to the technical field of steel structure assembly, and discloses an assembly type steel structure quick connecting assembly which comprises a first supporting cylinder, the outer wall of the first supporting cylinder is fixedly connected with a fixing plate, the interior of the fixing plate is fixedly connected with a fixing rod, and the outer wall of the fixing rod is rotationally connected with a first threaded rod. The outer wall of the first threaded rod is slidably connected with a connecting plate, a limiting groove is formed in the connecting plate, the outer wall of the first threaded rod is in threaded connection with a first rotating block, and fixing assemblies are arranged in the fixing block and the first supporting cylinder. According to the connecting device, the first threaded rod is driven to slide in the connecting plate, and the first rotating block is driven to rotate on the outer wall of the connecting plate, so that the connecting plate is limited and fixed on the outer wall of the first supporting cylinder, quick connection of steel structural members is realized, the construction period is greatly shortened, and the construction process is simpler, more convenient and quicker; and tighter and more accurate connection between the steel structural members is ensured.

The invention relates to the field of all-solid-state lithium ion batteries, in particular to composite positive electrode slurry, a positive electrode plate, a preparation method of the positive electrode plate and an all-solid-state battery, the slurry comprises a positive electrode active material, a first solid electrolyte, a conductive agent, a binder and a low-surface-energy substance, and the low-surface-energy substance is a substance with a contact angle larger than 90 degrees; the low surface energy substance is one or more of fluorinated polysiloxane, polysiloxane, octadecanoic acid and stearic acid. The low-surface-energy substance provided by the invention belongs to a polymer with excellent hydrophobicity. When the polymer is mixed in the slurry, the contact between sulfide electrolyte and water in air can be blocked, the generation of H2S toxic gas is reduced, and the structural damage of sulfide is reduced, so that the stability of the battery is improved. In addition, the preparation method is simple to operate when directly mixing in the slurry, and is beneficial to large-scale tests.

The utility model discloses a slope stabilization protection device, which relates to the technical field of slope protection and comprises a plurality of support rods, a protection net is arranged between two support rods, two connecting plates are symmetrically arranged at the bottom of the protection net, and a plurality of sections of protection components are arranged between the two connecting plates. Mounting blocks are arranged at the ends, away from the protective net, of the connecting plates, and a buffering mechanism is arranged between the two mounting blocks. The situation that falling rocks on the side slope affect the safety of human life and infrastructures can be reduced, the falling rocks are unloaded by arranging the buffering mechanism and the multiple sections of protection assemblies, the falling rocks cannot be directly accumulated at the bottom of the protection net, and the pressure on the protection net is reduced; the falling rocks are dispersed and stored, so that the situation that the falling rocks are accumulated in front of the protective net can be reduced, and the frequency of cleaning the falling rocks in front of the protective net by patrol personnel is reduced.