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57results about How to "Achieve uniformity" patented technology
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Electro-arc additive and subtractive machining method based on interlayer topography reconstruction
This invention provides an arc-based additive and subtractive manufacturing method based on interlayer morphology reconstruction, belonging to the technical field of metal additive manufacturing. The method includes depositing an Nth layer of metal material on a substrate to form a deposition layer with a natural wavy morphology; acquiring actual morphology data to identify peak and valley distribution characteristics and planning a subtractive manufacturing path; selectively turning the deposition surface to obtain an anti-wavy substrate; detecting the surface temperature field of the anti-wavy substrate and cooling or preheating the substrate; and repeatedly performing arc-based additive deposition of the N+1th layer on the temperature-controlled anti-wavy substrate to complete the additive manufacturing process. This invention solves the technical problem in existing technologies where the wavy morphology between layers is not addressed, resulting in subsequent deposition layers covering and permanently remaining inside the workpiece, leading to a reduced yield. It achieves the technical effect of suppressing interlayer defects, reducing porosity by 90%, and improving internal quality.
Owner:CHINA INNOVATION ACADEMY OF INTELLIGENT EQUIP CO LTD +1
A battery pack thermal management method based on multi-objective optimization for multi-element dynamic thermal load
PendingCN122263597Aachieve securityachieve uniformitySecondary cellsBiological modelsElectrical batteryThermal safety
The application discloses a battery pack thermal management method for multi-element dynamic thermal load based on multi-objective optimization, calibrates a high-precision heat generation model, optimizes a composite phase change material with high enthalpy and high thermal conductivity and a lotus leaf configuration liquid cooling plate, balances a prediction accuracy and a calculation efficiency of an agent model, introduces a core optimization objective function set of a worst activation criterion, adopts an initialization strategy and a cross variation mechanism for adaptively locking a parameter reasonable search space, solves a multi-objective optimization model based on an improved adaptive genetic algorithm, obtains a corresponding Pareto front solution set, and further combines a TOPSIS decision method to determine optimal configurations of key parameters such as a phase change layer thickness, a liquid cooling flow channel width, an inlet flow velocity and a system delay time, so that the battery pack can be controlled in a complex thermal environment to realize thermal safety and temperature uniformity control with the lowest energy consumption.
Owner:ZHEJIANG UNIV
A tool axis vector optimization method for wear equalization
ActiveCN121635088BRealize dynamic distributionachieve uniformityProgramme controlComputer controlSurface roughnessMachine tool
This invention discloses a tool axis vector optimization method for wear uniformity, belonging to the field of CNC machine tool technology. The method includes inputting workpiece, tool, and machining path information, and initializing the tool axis vector model; defining and calculating the tool-workpiece meshing area, and determining the cutting edge participation; for the cutting edge segment participating in cutting, using a wear mechanism analysis model, calculating the increment of the lateral wear volume at the current time step and the lateral wear width of the cutting micro-element at the next time step, and superimposing these values ​​to calculate the subsequent tool face wear width; iteratively adjusting the tool axis vector to achieve uniform wear distribution on the cutting edge; collaboratively optimizing cutting parameters to control surface roughness; and outputting a wear-uniformity machining scheme. This invention, by dynamically optimizing the tool axis vector and collaboratively adjusting cutting parameters, achieves active uniformization of tool wear and stable control of surface roughness, thereby significantly extending tool life and ensuring machining quality.
Owner:SHANGHAI JIAOTONG UNIV
A wastewater treatment device with synergistic effect of ozone oxidation and hydrodynamic cavitation
ActiveCN116813064BImprove processing efficiencyImprove solubilityFlow mixersTransportation and packagingHydroxyl radicalMicronization
The present application belongs to the field of wastewater advanced oxidation treatment technology, and proposes a wastewater treatment device with ozone oxidation and hydraulic cavitation synergistic effect. A primary Venturi tube, a ring air guide structure, a ring gap and a gas-liquid initial mixing section are arranged. The hydraulic cavitation is realized through the primary Venturi tube, the cavitation bubbles formed are extended to the downstream along the expansion section, and the synergistic effect with the ozone entering through the ring gap is realized. In the extreme environment generated by the collapse of the cavitation bubbles, the dissolution of the ozone gas into the liquid and the generation of the hydroxyl radicals are promoted. To some extent, the dependence on the pressure gas source is reduced, and the energy consumption is reduced. The gas phase is preliminarily dispersed before entering the secondary Venturi tube, the uniformity of the gas-liquid in the flow space is realized to the maximum extent, and the choked flow is easy to form. On the one hand, the bubbles can be further micronized, and the mass transfer is strengthened. At the same time, the gas-liquid interface changes sharply in the process of bubble micronization, which is also beneficial to the efficient generation of the hydroxyl radicals, so as to further improve the wastewater treatment efficiency.
Owner:DALIAN UNIV OF TECH
A method for heat treatment of hypereutectoid rail steel after flash welding
PendingCN122279177AEliminate harmful effects of mechanical propertiesavoid formingHeat conservationPearlite
This invention belongs to the field of metal welding technology and relates to a heat treatment method for hypereutectoid rail steel after flash welding, comprising the following steps: post-weld cooling: the welded joint is allowed to cool naturally in air after flash welding; normalizing treatment: the welded joint is heated to a normalizing temperature above the austenitizing temperature and held at that temperature; controlled cooling: the temperature of the weld heat-affected zone of the welded joint is cooled from the normalizing temperature to the isothermal transformation temperature within the pearlite phase transformation temperature range at a first cooling rate, held at that temperature until the austenite undergoes pearlite transformation, and then the welded joint is cooled from the isothermal transformation temperature to below 200°C at a second cooling rate lower than the first cooling rate. The method of this invention can effectively eliminate the network cementite structure in the flash welding heat-affected zone, while avoiding the introduction of harmful structures such as martensite or bainite, ensuring that the microstructure of the weld heat-affected zone is pearlite with fine lamellar spacing.
Owner:PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP
Continuous vacuum sintering furnace
ActiveCN224188938Uevenly distributedevenly heatedMuffle furnacesRetort furnacesTemperature controlGraphite
The utility model relates to the technical field of graphite product processing, and discloses a continuous vacuum sintering furnace which comprises a sintering furnace body, the sintering furnace body is provided with a heating mechanism, a bearing mechanism is arranged in the sintering furnace body, the sintering furnace body comprises a heat preservation and insulation shell, and a heat conduction inner container is coaxially arranged in the heat preservation and insulation shell. A first open slot is formed in the top end of the heat-conducting liner; a second open slot matched with the first open slot is formed in the top end of the heat-insulating shell. By optimizing the structural design of the hearth and reasonably arranging the heating elements, heat distribution is more uniform, namely, the annular multi-heating-pipe structural design is adopted, partition heating can be carried out through one or more heating pipes, namely independent heating areas are arranged at different positions of the hearth, and through an accurate temperature control algorithm of the temperature controller, the heating efficiency of the hearth is improved. And each heating area is independently adjusted, so that the uniformity of the temperature in the whole hearth is realized, and materials can be uniformly heated in the hearth.
Owner:ZIBO JINPENG COMPOSITE MATERIAL TECH CO LTD
Method for in-situ activation of substrate surface in atomic layer deposition chamber
PendingCN121802389Astable supplySufficient supplyChemical vapor deposition coatingHigh densityOptical coating
The invention belongs to the technical field of semiconductor manufacturing, micro electro mechanical systems and precise optical coating, and particularly discloses a method for activating the surface of a substrate in situ in an atomic layer deposition chamber, which comprises the following steps: selecting a donor substrate and a target substrate to be activated; etching the donor substrate to obtain a donor substrate with high-density hydroxyl groups; placing the donor substrate with the high-density hydroxyl groups and a target substrate to be activated in the same atomic layer deposition process chamber; and inert carrier gas is introduced into the atomic layer deposition process chamber, purging process parameters are controlled, and in-situ activation of the target substrate is completed. According to the method for activating the surface of the substrate in situ in the atomic layer deposition chamber, after the surface of the substrate is activated by the method, protective films such as aluminum oxide and the like are subjected to atomic layer deposition, so that the adhesive force and long-term reliability of the protective films on a whole device can be ensured; and interface engineering technical support is provided for manufacturing of high-performance and high-reliability three-dimensional heterogeneous integrated devices and micro-nano sensors.
Owner:TONGJI UNIV
A video big data retrieval method and system based on semantic tags
ActiveCN121681871BSolve the problem of occupying storage resourcesImplement semantic-level deduplicationVideo data indexingVideo data queryingSignal-to-noise ratioMultimedia information retrieval
This invention relates to the field of video data processing and multimedia information retrieval technology, specifically a video big data retrieval method and system based on semantic tags. The method includes: a data mapping step: mapping a video stream into a sequence of feature vectors using a multimodal encoder; a difference calculation step: calculating the rate of change of differences between adjacent feature vectors to generate a semantic velocity vector; an anchor point extraction step: extracting semantic abrupt change event anchor points based on a comparison of the velocity vector magnitude with a threshold; an index construction step: constructing a differential manifold index with semantic transitions as nodes and time spans as edges; a dynamic dimensionality reduction step: constructing a dynamic mask matrix based on the retrieval request, projecting nodes to a low-dimensional subspace; and a matching output step: calculating the matching degree in the subspace and outputting the result. This invention significantly improves retrieval speed and signal-to-noise ratio, and substantially reduces storage volume through index event anchor points and dynamic subspace folding.
Owner:XIAMEN HUAMEI YUNHAI TECH CO LTD +1
An integrated impurity recovery and sedimentation device for papermaking wastewater
This invention relates to the field of papermaking wastewater treatment technology, specifically to an integrated impurity recovery and sedimentation device for papermaking wastewater. It includes a sedimentation tank and an inner feeding section. The sedimentation tank has a cover on top, and a support is fixedly connected to the inner side of the sedimentation tank. The side of the support near the feeding section is fixedly connected to the feeding section, and an inclined plate is welded to the outer side of the support. This invention provides an integrated impurity recovery and sedimentation device for papermaking wastewater, featuring a dynamic design that drives an interception net via a shaft ring, continuously shaking off fibrous impurities. Combined with a multi-layer filter structure, it avoids filter clogging and improves interception efficiency, reducing the risk of subsequent equipment entanglement or clogging. It allows the reagent to diffuse circumferentially and be fully stirred, ensuring uniform mixing of the reagent and wastewater while avoiding disturbance to the sedimentation area. This overcomes the stratification and uneven mixing problems of traditional static feeding. The cylindrical inclined plate achieves uniform water distribution in the sedimentation area, improving impurity treatment, reagent mixing, and sedimentation efficiency.
Owner:JIANGSU JINTIAN PAPER CO LTD
Semi-open hopper
The utility model provides a kind of semi-open type hopper, communication is set in the discharge port of stirring equipment, including temporary storage hopper, the top end and bottom end of temporary storage hopper are equipped with inlet and outlet respectively, the inlet cover is equipped in the outside of the discharge port of stirring equipment, and is fixedly connected with the stirring equipment, the bottom end of the outlet is equipped with discharge assembly, one side of the outlet is equipped with power part for driving the discharge assembly to move to the direction close to or away from the outlet direction.The utility model, by setting the semi-open type hopper, can better adapt to the upgrading of stirring equipment, greatly reduces production cost, by accurately controlling the movement of discharge assembly, realizes the uniformity and stability of concrete discharging, reduces the problems such as uneven discharging, unstable discharging speed, to improve the production efficiency of concrete.
Owner:QINHUANGDAO MUNICIPAL BUILDING MATERIALS GRP CO LTD
Heat dissipation cold plate adopting efficient heat-conducting medium
ActiveCN224290439UImprove cooling efficiencyachieve uniformityCooling/ventilation/heating modificationsThermodynamicsCold plate
The utility model relates to the technical field of heat dissipation, in particular to a heat dissipation cold plate adopting a high-efficiency heat-conducting medium, which comprises a first heat dissipation part, a second heat dissipation part, a third heat dissipation part, a fourth heat dissipation part, a third heat dissipation part and a fourth heat dissipation part, and is characterized in that the first heat dissipation part comprises a first substrate, a top of a second substrate, a first flow channel and a second flow channel; the other end of the first flow channel is connected with one end of the second flow channel through a conical flow channel, a water outlet is formed in the other end of the second flow channel, and the water inlet and the water outlet are both formed in the first side face of the first base plate; and the second heat dissipation part is arranged at the bottom of the first heat dissipation part and comprises the bottom of a second substrate and a plurality of conical heat dissipation channels penetrating through the interior of the bottom of the second substrate. According to the utility model, the heat dissipation efficiency and the heat dissipation uniformity are improved.
Owner:BEIJING JUNHANG YAOHUA TECH CO LTD
A negative electrode current collector and negative electrode sheet capable of safe lithium replenishment and a lithium replenishment battery
This invention discloses a negative electrode current collector, comprising a basic foil material; multiple vertically penetrating through-holes are uniformly distributed at equal intervals on the basic foil material; each through-hole contains a lithium replenishment filler; the lithium replenishment filler includes lithium metal powder; the lithium replenishment filler is a multi-layered lithium replenishment filler; the multi-layered lithium replenishment filler includes at least one layer of lithium metal powder. This invention also discloses a negative electrode sheet and a lithium replenishment-type battery. This invention is scientifically designed, effectively improving the energy density of the battery cell, ensuring the safety of the lithium replenishment process, and allowing for controlled and gradual lithium replenishment, thus possessing significant practical value.
Owner:LISHEN (QINGDAO) NEW ENERGY CO LTD
Etching liquid for selectively etching silicon nitride and titanium nitride and preparation method thereof
The application relates to the technical field of semiconductor and electronic chemicals, and particularly discloses an etching solution for selectively etching silicon nitride and titanium nitride and a preparation method thereof. The etching solution contains the following components in percentage by mass: 10-45% of phosphoric acid, 1-5% of hydrofluoric acid, 0.5-2.5% of a pH buffer, 0.01-1.8% of a solubilizer and 0.1-7% of an etching inhibitor, and the rest is water. The pH buffer can effectively stabilize the pH of the etching solution, the solubilizer can improve the solubility of the solvent in the etching solution, reduce the tension of the solid-liquid phase interface in the solution and promote the transmission rate of the interphase substances, and the etching inhibitor can form a film on the surface of the titanium nitride in the form of a coordination bond, so that the silicon nitride and the titanium nitride have a high selectivity ratio. The etching solution can inhibit the etching rate of the titanium nitride under the condition of a high etching rate of the silicon nitride, and can ensure the high selectivity ratio of the silicon nitride and the titanium nitride.
Owner:HUBEI SINOPHORUS ELECTRONIC MATERIALS CO LTD
Automatic forming and baking equipment for moon cake processing
PendingCN122074519ARealize three-dimensionalAchieve uniform heating without dead endsOven air-treatment devicesDevice PlateConveyor belt
The invention discloses automatic forming and baking equipment for mooncake processing, and relates to the technical field of mooncake processing, the automatic forming and baking equipment for mooncake processing comprises a machine shell, baking devices arranged on two sides of the machine shell, smoke exhaust devices arranged on two sides of the top of the machine shell, a control box arranged on the outer wall of the machine shell, and a plurality of device plates, the device plates are arranged and fixed to the belt face of the conveying belt, two first adsorption blocks are fixed to the side wall of each device plate, a device groove is formed in each device plate, and a rotating sleeve is rotationally installed in each device groove. The two soaking assemblies are arranged on the side wall of the rotating sleeve; and the linkage assembly is arranged on the side wall of the device plate, and the linkage assembly is connected with the rotating sleeve. The automatic mooncake baking and coloring device is high in automation degree, uniform baking and accurate coloring can be achieved, mooncakes are consistent in maturity, attractive in skin color and luster and uniform in texture, the rejection rate is reduced, and the product value is improved.
Owner:ANHUI TIANHE FOOD
A tail gas treatment device and method
ActiveCN115707506BImprove washing efficiencyGreat operating flexibility
The application discloses a tail gas treatment device and method, which comprises a water washing tower, a filler, a sieve plate, a liquid phase stabilization zone, a circulating pump and a control unit.
Owner:SINOPEC ENGINEERING INCORPORATION +1
Direct cooling system
PendingCN122170553AAvoid temperature differencesachieve uniformityMechanical apparatusCell temperature controlElectrical batteryRefrigeration
The present application relates to the technical field of energy storage, and particularly relates to a direct cooling system. The direct cooling system comprises a compressor, a heat exchanger, at least two throttles and at least two liquid cooling plates, the compressor, the heat exchanger, the at least two throttles and the at least two liquid cooling plates are configured to be connected in sequence to form a refrigeration cycle loop for refrigerant to flow in the refrigeration cycle loop. The heat exchanger is configured as a condenser in the refrigeration cycle loop, the at least two throttles are connected in parallel, the at least two liquid cooling plates are connected in parallel, the at least two throttles are connected with the at least two liquid cooling plates one by one, the at least two liquid cooling plates are configured to exchange heat with the battery cell corresponding to the battery pack, and the throttle is configured to adjust the opening degree to adjust the flow of refrigerant in the corresponding liquid cooling plate. The flow of refrigerant in each liquid cooling plate can be controlled by respectively arranging a throttle upstream of each liquid cooling plate, thereby achieving uniformity of flow distribution.
Owner:CRRC ZHUZHOU ELECTRIC LOCOMOTIVE RESEARCH INSTITUTE CO LTD
A method and device for measuring the width and uniformity of a grain ridge
The application relates to a kind of grain ridge width and width uniformity measurement method and device.The method comprises: generating at least one grain ridge mask to be measured; adding a center axis in the grain ridge mask to be measured, and the center axis is segmented to obtain at least two sub-center axes; a second straight line perpendicular to the first straight line is generated, wherein the first straight line is used to indicate the straight line formed by connecting the two ends of the sub-center axis; according to the intersection line segment of the second straight line and the grain ridge mask to be measured, the sub-pixel width of the part of the grain ridge mask to be measured corresponding to the sub-center axis is obtained; according to the sub-pixel width of each part of the grain ridge mask to be measured, the average pixel width and the pixel width uniformity of the grain ridge mask to be measured are obtained; the average pixel width and the pixel width uniformity are converted to obtain the actual width and the actual width uniformity of the grain ridge to be measured. The method can improve the problem of human resource consumption in the prior art.
Owner:KWEICHOW MOUTAI COMPANY
Polypeptide extraction device
ActiveCN224207443UEasy for daily maintenanceavoid pollutionRotary stirring mixersTransportation and packagingFreeze thawingProcess engineering
The utility model relates to the technical field of polypeptide extraction, and discloses a polypeptide extraction device which comprises an extractor body, a feeding port formed in the top surface of the extractor body, a limiting ring attached to the outer side is arranged on the top surface of the extractor body, and an inlet closing assembly covering the feeding port is arranged in the limiting ring. And a detachable raw material freezing and thawing assembly is arranged on the limiting ring. The inlet closing assembly is arranged at the feed port of the extractor body, so that the feed port is accurately sealed, and pollution caused when the raw material freezing and thawing assembly is mounted and dismounted is avoided; the raw material freezing and thawing assembly is arranged at the feeding port, polypeptide raw materials can be subjected to freezing and thawing treatment and directly fed into the extractor body to be extracted, the pollution phenomenon is avoided, and daily maintenance is facilitated through the raw material freezing and thawing assembly which can be quickly disassembled.
Owner:CHINA GATEWAY PHARMA DEV CO LTD
An edible fungus strain preparation device
ActiveCN224267631Uachieve uniformityEfficient sterilization effectCultivating equipmentsMushroom cultivationBiotechnologyEdible mushroom
Owner:ZAOZHUANG DONGXU EDIBLE FUNGUS DEV CO LTD
A cooling pipe for a continuous casting billet crystallizer
This utility model relates to a cooling pipe for a continuous casting billet crystallizer, belonging to the technical field of continuous casting crystallizers. It includes a copper pipe and a water jacket, both being square in shape. The copper pipe is placed inside the water jacket, forming a water gap between them. Multiple axially extending intermediate water grooves are provided on the four outer surfaces of the copper pipe. The depth of these intermediate water grooves on each outer surface of the copper pipe is such that the groove at the center of the plane is deeper, while the grooves on the two sides are shallower. The top surfaces of the intermediate water grooves on each outer surface of the copper pipe are flush, and the depth gradually decreases from the center of the plane to the two sides. This reduces excessive cooling at the corners of the copper pipe, avoids the "sharp corner effect," achieves uniform cooling of the copper pipe, and reduces the risk of corner cracks in the cast billet. It effectively controls the pulsation of the cooling water, reduces the occurrence of "hot spots," improves the cooling effect, and extends the service life of the crystallizer copper pipe.
Owner:JIANGYIN XINGCHENG SPECIAL STEEL WORKS CO LTD
Intelligent spraying three-dimensional sealing dust-settling system of coal mining machine and control method
This invention relates to a three-dimensional enclosed dust suppression system and control method for intelligent spraying on coal mining faces, belonging to the field of coal mine dust suppression control. It includes a coal mining machine, an onboard spraying system, and a tracking spraying system. The coal mining machine transports coal via a scraper conveyor. Rocker arms are located at both ends of the coal mining machine, with drums for coal mining mounted on the rocker arms. The onboard spraying system is positioned at the root of the rocker arms to enclose the drums at both ends of the coal mining machine. The tracking spraying system is mounted on the scraper conveyor and located beside the coal mining machine. The tracking spraying system is connected to a control system to activate the spraying devices near the front and rear drums of the coal mining machine in real time, guiding the dust-laden airflow generated by the coal mining machine towards the coal face. The onboard and tracking spraying systems create a three-dimensional enclosed space around the coal mining machine, preventing dust from spreading throughout the working area with the airflow, thus improving the overall dust suppression effect.
Owner:SHENMU ZHANGJIAMAO COAL MINING CO LTD OF SHAANXI COAL & CHEM IND GRP +1
A heat treatment front bearing ring stacking device and method
ActiveCN117533802Bachieve uniformityachieve stabilityStacking articlesDe-stacking articlesMechanical engineeringHeat treating
Owner:QILU UNIVERSITY OF TECHNOLOGY (SHANDONG ACADEMY OF SCIENCES) +1
A flat mushroom planting sprinkling irrigation type culture equipment
The utility model relates to the field of pleurotus ostreatus planting, especially to a pleurotus ostreatus planting sprinkling irrigation type culture equipment, technical scheme: a pleurotus ostreatus planting sprinkling irrigation type culture equipment, including bearing frame, culture dish support plate, first displacement plate frame, second displacement plate frame and servo motor, the utility model discloses through servo motor cooperation screw rod can drive first displacement plate frame drive second displacement plate frame and sprinkling irrigation head along the above of three groups culture dish support plate in culture dish reciprocating type's even speed irrigation movement to realize the uniformity when pleurotus ostreatus irrigation, and save culture solution, and first guide rail and second guide rail can assist the stability of first displacement plate frame and second displacement plate frame when reciprocating displacement, guarantee the stability and uniformity of sprinkling irrigation head when left and right displacement and irrigation pleurotus ostreatus, solved the uniformity when the pleurotus ostreatus planting sprinkling irrigation culture equipment of existing pleurotus ostreatus is difficult to guarantee when irrigation pleurotus ostreatus of the waste of culture solution when using.
Owner:EZHOU MINGYOU AGRICULTURAL TECHNOLOGY CO LTD
A pre-coat film preparation system
The utility model discloses a kind of pre-coated film preparation systems, including roll material unwinding device, surface pretreatment device, coating machine and hot air circulation drying tunnel, cooling winding device and the like module, can realize interface adhesion reinforcing layer and surface energy control layer high-precision continuous coating on substrate surface.System can be configured according to single side or double side coating demand film turnover wheel group and multi-path pipeline transport, realize the consistency and uniformity of double side coating.Coating liquid preparation tank can be equipped with vacuum defoaming or ultrasonic mixing device, improve coating liquid uniformity and compactness.Overall system structure modularization, can be flexibly configured, applicable to different thickness BOPET film, ensure that coating adhesion is high, flatness is good, industrialized continuous production is stable and reliable, provide high-performance base material for hardening, electronic protection and insulating material and the like application.
Owner:JIANGSU SHUANGXING COLOR PLASTIC NEW MATERIALS
An injection mold
Owner:FENG YI SQUEEGEE BOTTLE CAP (SICHUAN) CO LTD
Novel battery water cooling plate
ActiveCN224123387UImprove cooling effectachieve uniformitySecondary cellsElectrical batteryThermal adhesive
The utility model relates to the technical field of heat dissipation of electronic equipment, in particular to a novel battery water cooling plate which comprises a shell and a fractal flow channel, the shell is made of aluminum, heat-conducting glue is arranged on the surface of the shell, and a fractal flow channel is formed in the shell; the fractal flow channel is divided into a liquid inlet, a liquid outlet and a three-stage flow channel network, and the liquid inlet is communicated with the liquid outlet through the three-stage flow channel network, so that the water-cooling plate realizes the uniformity of pressure distribution of the flow channels in the water-cooling plate through the design of the fractal flow channel, and further ensures the uniformity of flowing of cooling liquid; meanwhile, the heat dissipation effect of the water cooling plate is improved through the fractal flow channels, and the temperature difference between the inside and the outside of the battery pack is reduced.
Owner:SHANGHAI MOLAN NEW ENERGY TECH CO LTD
Lithium metal negative electrode organic-inorganic hybrid protective layer and preparation method thereof and lithium metal battery
The application discloses a lithium metal negative electrode organic-inorganic hybrid protective layer and a preparation method and lithium metal battery thereof, and belongs to the field of lithium metal batteries. The application adopts a gas-liquid interface self-assembly strategy to make a chloroamide compound and a diisocyanate compound react at high temperature in anhydrous toluene, and obtains a functional polymer by referring to the principle of biological mineralization; the functional polymer is dissolved in an organic solvent after purification to obtain a coating liquid, and an ultrathin, dense and multi-level structure organic-inorganic hybrid protective layer is constructed on the surface of lithium metal through interface self-assembly and solidification into a film. The organic component in the protective layer can densify the interface structure, uniformly guide lithium ion deposition and inhibit dendrites; the inorganic component can regulate the solvation structure of lithium ions, reduce the migration energy barrier and improve the interface transmission kinetics. The protective layer can inhibit the growth of dendrites and significantly improve the cycle and rate performance of the battery. The method has simple process, mild conditions and easy scale production, and provides a practical solution for high-performance lithium metal negative electrodes.
Owner:MONTA VISTA ENERGY TECH CORP (ANHUI)
A cable reel wiring device for automatically detecting the tightness of the winding.
This utility model relates to the field of cable fault detection technology, specifically an automatic cable reel winding device for detecting the tightness of the winding. Utilizing the principle of a reciprocating screw, this invention requires only a common motor to move the slider back and forth, thereby driving the reciprocating winding of the cable. This reduces the number of motor reversals, improving motor stability and lifespan, and lowering costs. Simultaneously, the combination of a detection spring and a microswitch sensitively senses the pressure of the cable on the guide rod, monitoring and judging the cable tension. This prevents cable damage or tangled winding caused by loose winding, improving the automation and reliability of the cable winding process. Through automatic reciprocating winding and monitoring, this invention achieves uniform winding, greatly reducing insufficient manual intervention and safety hazards. Furthermore, its simple structure, convenient use and maintenance, and excellent performance make it highly effective.
Owner:SHANGHAI XINHUIDONG ELECTRIC TECHNOLOGY CO LTD
A biodegradable Zn-Mg binary alloy and a preparation method and application thereof
The application relates to the field of metallurgical and plastic processing of biomaterials, and provides a biodegradable Zn-Mg binary alloy and a preparation method and application thereof. The biodegradable Zn-Mg binary alloy is prepared by adopting a method of smelting-semi-continuous casting-forging-rolling-reverse extrusion and taking metal Zn and Zn-Mg intermediate alloy as raw materials. The Zn-Mg binary alloy prepared by the application has good mechanical properties, and the strength and ductility can meet the requirements of medical implant devices. Meanwhile, the Mg is added in the form of Zn-Mg intermediate alloy, so that the burning loss of the Mg can be effectively controlled, and the uniformity of the alloy composition and structure is improved. Further, high-purity raw materials are selected, and high-purity graphite crucibles are adopted for smelting, so that the heavy metal content in the Zn-Mg binary alloy is effectively controlled, the contents of Pb, As and Cd reach the standard of drinking water, and the safety of the Zn-Mg binary alloy implant in the body is ensured.
Owner:NORTHEASTERN UNIV CHINA
Process for the casting of high manganese steel frog marking fastenings
This invention provides a casting process for fixing markings on high-manganese steel frogs. A support block is fitted between the marking sand mold on the side of the model rail wall and the bottom of the model rail wall within the sand box. The marking sand mold has a special cross-sectional structure to prevent displacement. One side of the marking sand mold is tightly attached to the model rail wall; the lower side is supported and fixed by the support block; and the surrounding area is tightly wrapped with molding sand. After hardening and demolding, the support block area is filled and solidified with molding sand to ensure that the marking sand mold and the model rail wall remain coplanar. This reduces the amount of grinding required due to non-coplanarity between the marking sand mold and the model rail wall, and also standardizes the position of the markings on frogs of the same model. This invention solves the technical problems of marking sand mold displacement and excessive grinding of the markings on the castings; the markings on the cast frogs of the same model are standardized and neat, making it suitable for widespread application.
Owner:CHINA RAILWAY BAOJI BRIDGE GROUP CO LTD