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420results about How to "Ensure Structural Integrity" patented technology

Preparation method of antibacterial degradable sponge material

The invention relates to the field of sponge materials, and provides an antibacterial degradable sponge material and a preparation method thereof. The material is prepared from protocatechuic acid modified quaternized chitosan, quaternary ammonium salt grafted gelatin, sodium alginate, polyhydroxybutyrate, polycaprolactone, a polylactic acid-glycolic acid copolymer, hexamethylene diisocyanate, a foaming agent, nano cellulose, vitamin E, polyethylene glycol, triethylamine and dimethylformamide. Protocatechuic acid and quaternized chitosan are subjected to amidation modification, and chitosan and gelatin are subjected to quaternization treatment by adopting 2, 3-epoxypropyl trimethyl ammonium chloride, so that the antibacterial property and biodegradability of the material are improved. In the material preparation process, through vacuum degassing, foaming vacuum degree and humidity control and a multi-step drying process, it is ensured that the average pore size of the material is uniform (50-200 microns) and the porosity is high (50%-90%), and the obtained material has excellent antibacterial property and degradability and has wide application value.
Owner:NANTONG FENGSHENG TEXTILE CO LTD

Low-expansion low-impedance lithium ion battery negative electrode and preparation method thereof

The invention discloses a lithium ion battery negative electrode with low expansion and low impedance. The lithium ion battery negative electrode comprises a composite current collector and a negative electrode active material coating coated on at least one surface of the composite current collector, the negative electrode active material coating comprises a negative electrode active material, graphene and lithium polyacrylate; the mass ratio of the negative electrode active material to the graphene to the lithium polyacrylate is (90-99): (0.5-5): (0.5-5), the negative electrode active material comprises a silicon carbon material and a coating material layer arranged on the outer surface of the silicon carbon material, and the coating material layer comprises a polypyrrole layer and single-walled carbon nanotubes uniformly distributed in the polypyrrole layer. Compared with the prior art, the lithium ion battery negative electrode provided by the invention has the advantages of low expansion and low impedance, and can effectively inhibit the expansion of silicon particles, reduce the internal resistance of the battery and maintain the structural stability of the electrode.
Owner:广东嘉尚新能源科技有限公司

Super wear-resistant fracturing hose assembly and preparation method thereof

The invention relates to a super wear-resistant fracturing hose assembly and a preparation method thereof. The super wear-resistant fracturing hose assembly comprises a hose and a joint, the hose comprises a hose body super-wear-resistant layer, an inner rubber layer and a steel wire framework layer. The connector comprises a super-wear-resistant inner core body formed by compounding a metal inner core body and a core body super-wear-resistant layer, a first sleeve arranged on the outer side of the super-wear-resistant inner core body in a sleeving mode, and a second sleeve arranged on the outer side of the first sleeve in a sleeving mode. The inner side of the second sleeve is connected with the outer side of the first sleeve in a buckling and pressing mode, the inner side of the first sleeve is connected with the outer side of the steel wire framework layer in a buckling and pressing mode, and the inner side of the steel wire framework layer is connected with the super-abrasion-resistant inner core body in a buckling and pressing mode on the anti-pulling-off section of the super-abrasion-resistant inner core body and connected with the inner rubber layer in a sealing mode on the sealing section of the super-abrasion-resistant inner core body. The inner rubber layer is in sealing connection with the super-wear-resistant inner core body at the sealing section of the super-wear-resistant inner core body; the core body super-wear-resistant layer and the pipe body super-wear-resistant layer are in high-temperature welding connection through a welding rod; the wear resistance of the hose connector part can be improved.
Owner:DEZHOU UNITED GASOLINEEUM MACHINERY

Vibration test tool of transformer and use method of vibration test tool

The invention provides a transformer vibration test tool and a use method, the transformer vibration test tool comprises a vibration platform, the vibration platform is provided with an installation platform, the installation platform is symmetrically provided with two support frames, the ends of the same sides of the tops of the two support frames are connected with a connecting plate, the connecting plate is connected with a connecting piece, and the connecting piece is connected with the vibration platform. The top of a transformer is connected to the connecting piece, the transformer is located between the two supporting frames, one end of a flexible connecting piece is connected to the bottom of the transformer, and the other end of the flexible connecting piece is connected to the tops of the supporting frames. According to the test tool, accurate test and evaluation of the transformer in a simulated vibration environment are realized, and the accuracy and reliability of the transformer in a vibration test are ensured, so that the operation and maintenance cost and risk of the transformer are reduced.
Owner:成都西电中特电气有限责任公司 +1

Short pulse laser assisted continuous laser welding device and method

The invention discloses a short pulse laser assisted continuous laser welding device and method. The method comprises the steps that materials are laid; a welding area is divided, and the whole welding area is divided into small areas; performing feature extraction on the small regions; constructing a speed mapping table according to the extracted different features; and planning a laser scanning path according to the speed mapping table. The short-pulse laser-assisted continuous laser welding device and method have the beneficial effects that near-infrared wavelength laser (such as 1064nm) is selected in the whole welding process, and the characteristics of high reflectivity of titanium alloy to the wavelength, high absorptivity of thermoplastic resin, relatively low absorptivity of a resin part in a thermosetting composite material and poor absorptivity of carbon fibers to the wavelength are utilized; laser energy is mainly concentrated on the thermoplastic resin layer, and local heating is achieved. The method comprises the following steps: dividing a region into small regions, extracting features, constructing a speed mapping table, controlling laser energy input, and reducing heat affected zones of the titanium alloy and the thermosetting composite material.
Owner:JIANGSU ADVANCED LIGHT SOURCE TECH RES INST CO LTD

Multi-layer alignment pressing device for flexible printed circuit board

The invention belongs to the technical field of circuit board production, and discloses a flexible printed circuit board multilayer alignment press-fit device, which comprises a press-fit assembly, the press-fit assembly comprises a mounting seat, a top boss of the mounting seat is fixedly connected with an electric sliding rail, a slidable sliding part is fixedly mounted in the electric sliding rail, and the electric sliding rail is fixedly connected with a bottom boss of the mounting seat. Two limiting plates are fixedly connected to the top of each mounting base, the pressing assembly further comprises a plurality of guide plates, the guide plates are mounted at the tops of the mounting bases, the mounting assembly is mounted at the top of the sliding part, and the mounting assembly comprises a pressing table; the pressing table is moved through the electric sliding rail, rapid feeding and discharging are achieved in cooperation with interaction of the telescopic plate and the guide wheel, and before pressing, the telescopic plate ascends along the guide plate to support the pressing table and materials to the position below the pressing plate; after pressing, the telescopic plate descends along the other side of the guide plate, the pressing table continues to move, the telescopic plate retracts under the guidance of the limiting plate, the bottom of the pressing table makes contact with the sliding part, rapid and stable feeding and discharging of the circuit board are achieved, and the production capacity is improved.
Owner:DONGGUAN XINXIONG ELECTRONICS CO LTD

Activated carbon with high adsorption capacity

The invention belongs to the technical field of water treatment, and particularly relates to activated carbon with high adsorption capacity. The chlorella protein nucleus is selected as a carbon source, and through secondary activation, the pore structure of the activated carbon is more developed, and the pore size distribution is more concentrated, so that the activated carbon is endowed with better performance.
Owner:HUADIAN FOSHAN ENERGY CO LTD

Judgment prediction method and system for judicial case, and medium

The invention discloses a judicial case judgment and prediction method and system and a medium. Relates to the technical field of natural language processing. According to the scheme, the method is improved on the basis of the traditional prediction technology, the fact description feature representation model for extracting the fact description part is obtained based on the judicial judgment document and the content, the content and structural integrity of the judicial judgment document is guaranteed to the maximum extent, the text length is reduced, and the prediction efficiency is improved. On the other hand, a fact description feature representation model fitting a real case judgment scene is constructed based on an xsBert model and a BiGRU model, and the fact description feature representation is mapped to criminal names and law articles by a full connection layer, so that the judgment prediction problem of a plurality of criminal names and law articles is solved.
Owner:CHONGQING UNIV OF POSTS & TELECOMM

Pole, cover plate assembly and single battery

The invention provides a pole, a cover plate assembly and a single battery, and relates to the technical field of batteries. The pole comprises a body, the body is provided with a first surface, and the first surface is provided with a tab welding groove; the tab welding groove is provided with a groove side wall, the groove side wall is configured to be in contact with the tab of the single battery, and the plane where the groove side wall is located gradually inclines towards the axis of the pole along the direction far away from the first surface. According to the scheme, the bending angle of the tab when the tab is in contact with the groove side wall can be reduced, so that obvious stress concentration at the bending part of the tab is avoided, and cracks and even fractures at the bending part of the tab can be effectively avoided. Therefore, the structural integrity of the tabs can be ensured, so that the current-carrying capacity of the tabs is improved, the overcurrent capacity between the tabs and the pole columns is improved, and the performance of the single battery can be further improved.
Owner:EVE POWER CO LTD

Roof truss protecting and repairing method without falling

The invention discloses a roof truss protecting and repairing method without falling, and relates to the technical field of constructional engineering, and the method specifically comprises the following steps: S0, surveying, detecting, evaluating, identifying, forming a report, and guiding the design work; the method comprises the steps that S1, a ridge, tiles, waterproof components, roof battens, counter battens and asphalt felts of a building are sequentially dismantled till a roof base layer of the building is dismantled; s2, a wooden roof frame of a roof base layer is repaired; s3, after repairing is completed, a keel frame is installed on the wooden roof frame; s4, a bearing net is installed, stringers are arranged and fixed, and rock wool is filled; s5, a wooden roof boarding is laid on the stringer, and anti-corrosion paint is brushed on the wooden roof boarding; s6, waterproof coiled materials are laid and pasted on the wood balusters; s7, wood counter battens are installed, and then wood roof battens are installed; s8, roof tiles and a ridge are laid; s9, a lightning rod and a lightning strip are installed, then a downpipe is arranged, and a decoration panel is installed; and S10, after repairing is completed, detection is carried out, and finally subsection acceptance check is carried out. The technical problems that stability, waterproof performance and heat preservation and heat insulation performance are not enough in the updating and reconstruction process of an existing brick-wood structure house are solved.
Owner:JIANGSU YANGJIAN GRP CO LTD

Extracellular vesicle as well as preparation method and application thereof

The invention discloses an extracellular vesicle and a preparation method and application thereof, and belongs to the technical field of cosmetics, and the preparation method comprises the following steps: mixing rose and a PBS buffer solution, juicing, and filtering to obtain a filtrate; adding cellulase, xylanase and beta-glucanase into the filtrate, carrying out enzymolysis, and filtering to obtain an enzymatic hydrolysate; and centrifuging the enzymatic hydrolysate, filtering, resuspending and precipitating to obtain the rose extracellular vesicles. The rose extracellular vesicles can guarantee structural integrity and biological activity, can effectively load active ingredients, and can effectively deliver active molecules in the rose extracellular vesicles to target cells through interaction with membranes of skin cells. The extracellular vesicles can be fused with skin cell membranes to enter cells, active ingredients encapsulated by the extracellular vesicles are released, and the absorption efficiency of skin is improved.
Owner:GUANGZHOU OLEHANA BIOTECHNOLOGY CO LTD

Titanium carbide thin film material, preparation method and zinc ion hybrid capacitor

The invention relates to a titanium carbide thin film material, a preparation method and a zinc ion hybrid capacitor, and the preparation method of the titanium carbide thin film material comprises the following steps: mixing titanium carbide nanosheets with an aqueous solution of ammonium salt, carrying out ultrasonic treatment, carrying out solid-liquid separation, and taking the supernatant liquid to obtain an intercalated titanium carbide nano colloid; adding a water-soluble salt into the intercalated titanium carbide nano colloid, reacting, carrying out solid-liquid separation, washing with water, and drying to obtain titanium carbide aerogel; and carrying out compression molding on the titanium carbide aerogel to obtain the titanium carbide film material. The super-wrinkled titanium carbide film prepared through a nanosheet distortion strategy has obviously improved compression resistance. Under the pressure of 1MPa, the microstructure of the electrode material does not change. In addition, the titanium carbide thin film material has lower tortuosity and can be directly used for constructing an electrode, ion transmission can be accelerated, the dynamic performance of the electrode is remarkably improved, and the requirement for high-quality load application is met.
Owner:HUNAN UNIV

High-strength thermoplastic composite pipeline with metal armored reinforcing layer

The invention discloses a high-strength thermoplastic composite pipeline with a metal armored reinforcing layer, belongs to the field of development of clean energy such as natural gas and hydrogen, and is suitable for conveying the clean energy such as natural gas and hydrogen. The pipeline sequentially comprises a lining layer, a reinforcing layer, an anti-abrasion layer, a heat preservation layer, a protection layer, an auxiliary layer, a metal armoring layer, an anti-abrasion layer and a metal armoring reinforcing layer from inside to outside. The lining layer is made of a polytetrafluoroethylene material, the reinforcing layer is formed by spirally winding a high-strength carbon fiber material, the anti-abrasion layer is made of a polyethylene material, the heat preservation layer is made of an aerogel material, and the protection layer is made of a high-density polyethylene material. The two metal armor layers are buckled and connected in a staggered mode through C-shaped interlocking components which are spirally wound in the reverse direction, and the spiral winding angle is 30 degrees. The C-shaped interlocking structure is composed of an outer lock catch and an inner lock catch. Through the multi-layer structural design, the tensile strength, the impact resistance and the torsional strength of the thermoplastic composite pipeline can be effectively improved, the service life of the pipeline is prolonged, and the safety and the stability of the pipeline under complex working conditions are enhanced.
Owner:DALIAN UNIV OF TECH

Preparation method and application of biological polysaccharide polymer coated PQQ

The invention relates to the technical field of biological medicine materials, and provides a preparation method and application of biological polysaccharide macromolecule polymerization coated PQQ, a polysaccharide macromolecule slow-release skeleton carrier used for coating in the method comprises konjac glucomannan and chitosan, the carrier can form a honeycomb net structure, PQQ can be embedded into the net structure, and the PQQ can be embedded into the honeycomb net structure. The coated PQQ has a slow release function in the intestinal environment, the three-dimensional honeycomb structure can be extended under the intestinal environment condition, the PQQ is slowly released, and more than 90% of the PQQ is released within 8 hours.
Owner:钇澜杉生物科技(北京)有限公司

Anti-penetration bionic spiral laminated backboard packaging ceramic composite structure

The invention belongs to the technical field of armor protection, and particularly relates to an anti-penetration bionic spiral laminated backboard packaging ceramic composite structure. According to the composite structure, the metal frame strongly restrains ceramic, so that the erosion efficiency of a ceramic material to a projectile is improved, meanwhile, the damage range under single impact is reduced through packaging, and therefore the multiple-impact-resistant capacity of the protective structure is improved. And the spiral laminated backboard on the lower surface of the ceramic is mainly used for providing back support for the ceramic material, so that the crushing of the ceramic material is delayed, and the penetration resistance of the ceramic is improved. The high-molecular polymer material back plate of the composite protection structure absorbs energy of shots and broken ceramic fragments through large deformation by means of the high tensile strength of the high-molecular polymer material back plate, and therefore the protection structure is prevented from being subjected to aftereffect damage after penetration of the shots. In addition, the overall thickness and the surface density of the composite protection structure are low.
Owner:BEIJING INST OF TECH

Environment-friendly self-cleaning plate heat exchanger

The invention relates to the technical field of heat exchange equipment, and discloses an environment-friendly self-cleaning plate heat exchanger which comprises fixed clamping plates, guide rods are installed at the upper ends and the lower ends of the interiors of the two fixed clamping plates correspondingly, a plurality of plate sheets are clamped on the inner sides of the guide rods, and the plate sheets and the fixed clamping plates are attached to each other; a cold outlet and a hot outlet are formed in one side of the outer wall of the fixed clamping plate, a cold inlet and a hot inlet are formed in the other side of the outer wall of the fixed clamping plate, and a self-cleaning mechanism is installed in the sheet bar and used for automatically cleaning an inner channel of the sheet bar. A bubble cleaning mechanism is mounted on one side of the outer wall of the fixed clamping plate and used for introducing carbon dioxide bubbles into the plate to complete cleaning. And tiny bubbles are released through the bubble cleaning mechanism, dirt on the inner wall of the plate is deeply cleaned through the adhesive force of the bubbles and the high-pressure impact force generated when the bubbles are broken, and the continuity and stability of production operation are improved.
Owner:BAOJI ZHONGSE SPECIAL METAL CO LTD

Tailless package heat pipe manufacturing process and tailless package heat pipe manufactured by the same

ActiveCN119245401Bavoid mixingGuaranteed long-term stable operationIndirect heat exchangers
The present invention belongs to the technical field of heat exchange equipment, and specifically relates to a tailless packaged heat pipe manufacturing process and a tailless packaged heat pipe manufactured by the same, and the tailless packaged heat pipe manufacturing process comprises the following steps: S1, preparing a mixture, S2, sintering; S3, pore making treatment; S4, making an anti-wetting coating; S5, heat diffusion; S6, welding an isolation net; S7, setting a getter; S8, preparing a head 1; S9, preparing a head 2; S10, making a gas barrier coating; S11, heat treatment; S12, making an anti-leakage layer. The tailless packaged heat pipe comprises a heat pipe, and the heat pipe comprises a heat pipe fitting, and a head 1 and a head 2 are respectively arranged at both ends of the heat pipe fitting, an isolation net is arranged inside the heat pipe fitting, an anti-wetting coating is arranged on the isolation net, a gas barrier coating is arranged on the head 1 and the head 2, and an anti-leakage layer is arranged outside the gas barrier coating. The present invention solves the problem of residual tail pipes existing in the manufacture of heat pipes and prolongs the service life of the heat pipes.
Owner:ZIBO SHENGYUAN NEW MATERIAL TECH CO LTD

Waste sodium-ion battery hard carbon material recycling method based on water-based solution and application of waste sodium-ion battery hard carbon material recycling method

The invention relates to the technical field of waste sodium-ion battery recovery, and discloses a water-based solution-based waste sodium-ion battery hard carbon material recovery and regeneration method and application of the water-based solution-based waste sodium-ion battery hard carbon material recovery and regeneration method. Comprising the following steps: disassembling and separating the waste sodium-ion battery to obtain a hard carbon negative pole piece; stripping the hard carbon active material from the surface of the current collector, and collecting hard carbon negative electrode powder in the waste battery; removing side reaction products on the surface of the hard carbon negative electrode powder by adopting a water-based solution treatment method, and carrying out solid-liquid separation, washing and drying to obtain a primary regenerated hard carbon material; according to the specific failure mechanism and failure degree of the hard carbon material in the battery, the primary regenerated hard carbon is further subjected to annealing treatment, and the high-performance value-added recycled hard carbon material is obtained. The method adopts a water-based solution recovery technology, and has the advantages of safety, environmental protection and low cost; and meanwhile, the recovery process is simple, convenient and feasible, and has higher economic benefits. The performance of the regenerated hard carbon material is remarkably recovered, and the regenerated hard carbon material can be reused for manufacturing the sodium-ion battery.
Owner:ZHEJIANG UNIV

Lithium-sulfur battery positive electrode and preparation method thereof

The invention belongs to the field of lithium-sulfur secondary batteries, and relates to a lithium-sulfur battery positive electrode and a preparation method thereof.The positive electrode active layer of the positive electrode comprises an active sulfur-graphene composite material, a conductive agent and polyvinylidene fluoride; the active sulfur is sublimed sulfur particles of which the surfaces are loaded with cerium single atoms. The cerium monatomic catalyst can form strong chemical bonding with polysulfide, and shuttling of the polysulfide can be effectively inhibited in cooperation with a physical barrier of graphene; the cerium has relatively high selective adsorption on long-chain polysulfide, the redox reaction energy barrier of the polysulfide is reduced, the utilization rate of sulfur is improved, the loss of active substances is reduced, and the coulombic efficiency, the cycle stability and the charge-discharge efficiency of the battery are improved; the conductivity of sulfur can be enhanced, rapid transmission of electrons in the whole electrode is promoted, and the rate capability of the battery is improved; meanwhile, cerium single atoms can form a stable coordination structure on the surface of sulfur, so that the volume expansion of sulfur in the charge-discharge process is limited, and the cycle life of the battery is prolonged.
Owner:SICHUAN UNIV

High-performance photochromic composite fabric and preparation process thereof

The invention discloses a high-performance photochromic composite fabric and a preparation process thereof, and relates to the technical field of photochromic composite fabrics, the high-performance photochromic composite fabric is composed of a longitudinal fiber layer, a waterproof layer, combed cotton, cool fibers and a photochromic fiber layer; the longitudinal fiber layer is formed by interweaving chinlon and spandex, a waterproof layer is sprayed on the top of the longitudinal fiber layer, a photochromic fiber layer is connected to the top of the waterproof layer in a hot-pressing mode, combed cotton is connected to the bottom of the longitudinal fiber layer in a knitted mode, and cool fibers are connected to the bottom of the combed cotton in a knitted mode; and the surface of the photochromic fiber layer is coated with an ultraviolet light absorber. According to the photochromic composite fabric, the ultraviolet light absorber is sprayed on the surface of the photochromic composite fabric to fill gaps among the photochromic fiber layers, so that the number of ultraviolet rays reaching the photochromic material is reduced in the subsequent use process, the damage degree of the photochromic material due to photodegradation is reduced, and the service life of the fabric is prolonged.
Owner:JIANGSU GEYING TEXTILE CO LTD

Quantum dot diffusion plate and display device

The embodiment of the utility model provides a quantum dot diffusion plate and a display device.The quantum dot diffusion plate comprises a diffusion plate, an optical adhesive layer and a quantum dot plate which are sequentially arranged in a stacked mode, and the quantum dot plate comprises a first plate layer and a quantum dot film layer which are sequentially arranged in a stacked mode; the surface of one side of the first plate layer is adhered to the diffusion plate through the optical adhesive layer, the quantum dot film layer is formed on the surface of one side, far away from the diffusion plate, of the first plate layer, and the expansion coefficient of the diffusion plate is the same as that of the first plate layer.
Owner:HUIZHOU VISION NEW TECH CO LTD

Wheel disc integrity test method, test tool and test device

The invention discloses a wheel disc integrity test method, a test tool and a test device. The wheel disc integrity test method comprises the following steps: carrying out temperature calibration on a wheel disc test temperature; determining a wheel disc integrity test rotating speed; and setting a temperature control value according to a temperature calibration result, when the temperature of the wheel disc reaches an examination temperature, starting the test device to drive the wheel disc to rotate at a high speed to a test rotating speed Ntest, and stably running at the rotating speed for not less than 5 minutes. According to the invention, temperature calibration is carried out on the test temperature of the wheel disc, the wheel center examination temperature is taken as a reference, a temperature control value is set according to a temperature calibration result during a formal test, and the temperatures of the wheel center and the outer surface of the wheel disc reach the examination temperature and meet examination requirements; meanwhile, the wheel disc integrity test rotating speed is determined, and correction of material performance, dimensional tolerance and test device rotating speed control precision on the test rotating speed is considered, so that the test load is close to the actual load of the wheel disc on the engine.
Owner:AECC HUNAN AVIATION POWERPLANT RES INST

Multi-source geographic vector data matching method based on topological relevance

The invention discloses a multi-source geographic vector data matching method based on topological relevance, which comprises the following steps: collecting multi-source basic geographic vector data to form a preprocessed data set; constructing multi-index data quality evaluation based on local topological features; extracting and classifying spatial topological relation edges; constructing a weighted adjacent matrix of the target map; a neighborhood topology consistency measurement index is calculated, and neighborhood topology consistency quantization and adaptive weight fusion are carried out; establishing a global optimization objective function by taking the confidence coefficient matrix as input, solving a maximum weight bipartite graph matching problem with topology constraints by taking the topology retention rate as a hard constraint condition, and outputting a global optimal matching scheme; and constructing a quantitative evaluation index topology deviation measure based on topology invariant difference, judging whether a matching scheme has a significant topology conflict, and performing hierarchical repair according to the conflict condition. According to the method, the reliability and logic self-consistency of multi-source vector data fusion are improved, and the key problem of topological contradiction in the prior art is solved.
Owner:CHINA INST OF WATER RESOURCES & HYDROPOWER RES

Power-limited electric tracing band welding-free production process

The invention relates to the technical field of electric tracing bands, and discloses a power-limited electric tracing band welding-free production process. The method comprises the following steps: S1, preparing a heating core material: uniformly coating a metal wire with a base material and a conductive filler through a melt blending extrusion process; s2, sequentially extruding an insulating layer, a shielding layer and an outer sheath on the outer surface of the heating core through multi-layer co-extrusion equipment; and S3, performing fixed-length cutting on the electric tracing band through laser cutting equipment, and sealing the end part through a combined glue injection process of silicon rubber and hot melt glue. The composite conductive filler of graphene and carbon nanotubes is uniformly dispersed through an optimized twin-screw blending technology, and a conductive network structure with excellent continuity is formed. By adopting the design, the conductivity of the material is obviously improved, the power output is more uniform, the phenomenon of local overheating or supercooling is avoided, and the stability of the product in long-time operation is ensured.
Owner:山东森塔电气科技有限公司

Amino acid modified nanocarbon composite polyacrylic acid conductive binder and preparation thereof

The invention discloses an amino acid modified nanocarbon composite polyacrylic acid conductive binder and preparation thereof, and belongs to the field of lithium battery silicon-based negative electrode materials. The preparation method comprises the following steps: dispersing a nano-carbon material in deionized water to obtain a nano-carbon material dispersion liquid, sequentially stirring and mixing a polyacrylic acid binder and an amino acid aqueous solution, adding the nano-carbon material dispersion liquid, carrying out a heating reaction, and cooling to obtain the nano-carbon composite material. And the three-dimensional conductive adhesive which is strong in adhesive force, excellent in conductivity and capable of effectively relieving expansion stress is prepared, so that the capacity exertion and rate capability of an electrode are improved.
Owner:SHANGHAI UNIV

Multi-station electronic connector precision stamping die

The utility model discloses a multi-station electronic connector precision stamping die which comprises a bottom plate, supporting rods are fixedly connected to the four sides of the top of the bottom plate, the positions, close to the tops, of the four supporting rods are sleeved with and slidably connected with a movable plate, an upper die base is fixedly installed at the bottom of the movable plate, and a lower die base is fixedly installed at the bottom of the upper die base. A reinforcing plate is fixedly connected to the center of the top of the bottom plate, a lower die base is arranged on the top of the reinforcing plate, and side edge plates are fixedly connected to the two sides of the lower die base. According to the multi-station electronic connector precision stamping die, the buffer mechanism composed of the buffer plate, the damping rod and the buffer spring is arranged at the bottom of the lower die base, impact force generated in the stamping process is effectively absorbed and dispersed, the overall stability of the die is greatly improved, the service life of the die is prolonged, and the production efficiency is improved. And the structural integrity of the die can be kept under the high-speed stamping condition, and damage caused by impact is avoided.
Owner:KUNSHAN FIVE RINGS PRECISION MOULD CO LTD

3D printing piece polishing machine

The utility model relates to the technical field of 3D printing, and discloses a 3D printing piece polishing machine which comprises a machine body, a polishing piece is installed on the surface of the machine body and comprises a motor installed on the surface of the machine body, a first bevel gear is installed at the output end of the motor, a rotating rod is arranged at the top of the first bevel gear, and a fixing ring is installed on the surface of the rotating rod. The fixing ring is fixedly connected with the machine body, a second bevel gear is fixedly connected to the surface of the rotating rod and located on the inner side of the fixing ring, the surface of the rotating rod is movably sleeved with a third bevel gear, the third bevel gear, the first bevel gear and the second bevel gear are meshed with one another, an air bag is installed at one end of the rotating rod, and the air bag extends into the roller through the cover plate. According to the 3D printing piece polishing machine, the polishing piece is arranged, the printing piece can be efficiently polished within a short time, and therefore the problem that the surface of the printing piece is polished unevenly or the surface quality does not reach the standard due to the fact that polishing materials are distributed unevenly can be solved.
Owner:SUZHOU ZM 3D TECH CO LTD

High-thermal-conductivity car lamp cooling fin structure and connecting method

The invention relates to the technical field of vehicle auxiliary lighting, in particular to a high-heat-conduction vehicle lamp heat dissipation fin structure and a connecting method.The high-heat-conduction vehicle lamp heat dissipation fin structure comprises a protective shell, a light transmitting assembly, a vehicle lamp body, an air guiding unit and a cooling assembly.The light transmitting assembly is fixedly installed on the upper portion of the protective shell to form a sealed cavity; the automobile lamp body is installed on the inner side of the protective shell, the air guide unit comprises a first air guide pipe and a second air guide pipe to form an airflow channel, the cooling assembly comprises an electric motor and a heat dissipation unit, and the heat dissipation unit is in transmission connection with the electric motor, surrounds the automobile lamp body and keeps a non-contact matching state. The heat dissipation unit is driven by the electric motor to rotate to generate forced airflow and is matched with the air guide unit to form a circulating heat dissipation path. The parking lamp has the advantage that the internal temperature of the lamp sealing cavity can be adjusted, and the problem of heat accumulation caused by long-time working of a traditional parking lamp in a static state is effectively solved.
Owner:ZHEJIANG HONGGUAN LIGHTING TECH CO LTD

Immunofluorescence imaging method for driving tyramine signal amplification based on chemiluminescence and application thereof

The invention discloses an immunofluorescence imaging method for driving tyramine signal amplification based on chemiluminescence and application thereof, and relates to the technical field of biomedical imaging. The immunofluorescence imaging method comprises the following steps: carrying out first incubation on a to-be-detected sample and a peroxidase-labeled antibody; performing second incubation on the to-be-detected sample after the first incubation and a tyramine substrate containing a fluorophore under a dark condition; adding a chemiluminescent substrate solution into the to-be-detected sample after the second incubation, and carrying out image acquisition; wherein the antibody can be specifically bound with a target protein; the tyramine substrate can generate active free radicals under the catalysis of peroxidase, so that the active free radicals are covalently cross-linked with tyrosine residues; the chemiluminescent substrate solution comprises hydrogen peroxide and luminol. The immunofluorescence imaging method improves imaging signal and fluorescence stability, effectively reduces background interference and phototoxicity, is suitable for long-time stable fluorescence immunoimaging, and is especially suitable for high-sensitivity detection of low-expression protein markers.
Owner:SOUTHERN UNIVERSITY OF SCIENCE AND TECHNOLOGY

A reinforced fire rated filled door

This utility model relates to the field of fire-resistant infill door technology, specifically: a reinforced fireproof infill door, comprising a door body, the door body being composed of an outer protective layer, a first fireproof and heat-insulating layer, a reinforcing support layer, a second fireproof and heat-insulating layer, a buffer and shock-absorbing layer, and an inner protective layer. The outer protective layer is a steel plate with a fireproof coating; the first fireproof and heat-insulating layer is an aerogel composite fireproof felt; the reinforcing support layer is a honeycomb stainless steel skeleton structure; the second fireproof and heat-insulating layer is an expanded perlite fireproof board; the buffer and shock-absorbing layer is melamine foam; and the inner protective layer is a fireproof decorative board. In this utility model, through the synergistic effect of the six layers, the performance of the door body is comprehensively improved from multiple aspects such as fireproofing, heat insulation, structural support, and buffer and shock absorption. It can effectively block the spread of flames and heat for a long time during a fire, ensuring the structural integrity of the door body and buying valuable time for safe evacuation and fire rescue.
Owner:JINAN ZHENWEI SECURITY TECH DEV CO LTD