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33results about How to "Extend effective life" patented technology
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A down quilt with uniform filling
The utility model relates to down quilt technical field especially, relates to a kind of down quilt of even filling, including protective cover, the surface of the protective cover is equipped with horizontal and vertical staggered seam, the protective cover is divided into multiple independent square area with 30 centimeters side length by the seam;The top center of each square area is equipped with the opening for the filling tube of filling machine insertion, and the top of the protective cover is sewn with long strip edge bar.The utility model aims at the phenomenon of traditional protective cover because of the whole communication, the filling tube is moved inside and drives down migration, and the present application is divided into independent 30 centimeter side length square area by horizontal and vertical seam, each area is independently closed, and the flowing channel of down between area is blocked on physical structure, avoid the risk of down stringing during filling process and subsequent use, guarantee the stability of the filling amount of each area from the root.
Owner:ZHEJIANG SAMSUNG DOWN CO LTD
An aerospace-terrestrial integration small watershed water pollution monitoring system
This invention belongs to the fields of water environment monitoring, watershed pollution simulation, and smart water management. Specifically, it provides an integrated air-space-ground small watershed water pollution monitoring system, comprising: an airborne monitoring module for collecting spatial distribution data of water quality across the entire small watershed; a ground-based monitoring module for collecting continuous temporal water quality and hydrological baseline data of the small watershed; a multi-source data management module for data processing; a model engine module for constructing and running a distributed hydrological and water quality mechanism model of the small watershed; an adaptive parameter optimization module for automatically calibrating and dynamically updating the parameters of the distributed hydrological and water quality mechanism model of the small watershed; an early warning and source tracing module for obtaining early warning and source tracing results; a long-term prediction module for obtaining water quality prediction results; and a visualization decision module for displaying early warning and source tracing results as well as water quality prediction results. This invention realizes the monitoring, early warning, source tracing, and long-term prediction of water pollution in small watersheds.
Owner:INST OF MOUNTAIN HAZARDS & ENVIRONMENT CHINESE ACADEMY OF SCI
External heat dissipation device of photovoltaic inverter
ActiveCN224343588UUniform temperatureAffect operational stabilityPhotovoltaic energy generationCooling/ventilation/heating modificationsInductorHeat spreader
This utility model discloses an external heat dissipation device for a photovoltaic inverter, including an air duct cover over a back panel and a fan bracket disposed on the back panel within a first spacer. The fan bracket has several fans with air inlets facing a first inductor box heat sink. The air duct cover has a first air inlet corresponding to the first inductor box heat sink, a second air inlet corresponding to the second inductor box heat sink, a first air outlet corresponding to the end of the heat sink facing away from the first inductor box heat sink, and a second air outlet corresponding to the end of the third inductor box heat sink facing away from the second inductor box heat sink. This utility model meets the requirement of uniform heat dissipation, balances the inverter temperature, avoids excessively high local temperatures affecting the inverter's operational stability, and extends the inverter's effective lifespan. The internal fan cover design provides protection and creates a stable airflow channel, significantly improving heat dissipation performance.
Owner:SUZHOU HYPONTECH CO LTD
Glaucoma drainage device
PendingCN122581962AAvoid fixed deficienciesreduce complications
The application discloses a glaucoma drainage device and belongs to the technical field of medical devices. The glaucoma drainage device comprises a drainage sheet, the inside of which is a cavity structure, the drainage sheet is divided into a left cavity and a right cavity through a first partition plate, the upper surface of the left cavity is provided with a drainage hole, and the first partition plate is provided with a drainage opening; a drainage assembly is in communication with the inside of the drainage sheet through a connecting hole provided on the drainage sheet; and a fixing mechanism is arranged on the drainage sheet and used for fixing the drainage sheet and the drainage assembly. The glaucoma drainage device can fix the drainage assembly and the drainage sheet of the device through a mechanical fixing structure, avoids the problems of the suture fixation of the drainage device in the prior art, simplifies the operation process, shortens the operation time, reduces the complications caused by the suture foreign matter, and improves the fixing reliability and safety.
Owner:西安市人民医院(西安市第四医院)
Curtain upper beam
ActiveCN224187464UEasy to installEasy to disassembleLight protection screensMechanical engineeringPhysics
Owner:ZHEJIANG YIANO SHADING TECH CO LTD
A rhein-modified amine curing agent and its preparation method, and a long-lasting anti-corrosion coating based on bulk rust conversion and its preparation method and application.
PendingCN122079799AHas the ability to transform rustImprove anti-corrosion performanceOrganic chemistryOrganic compound preparationMannich reactionHydroxy group
This invention discloses an emodin-modified amine curing agent and its preparation method, as well as a long-lasting anti-corrosion coating based on bulk rust conversion, its preparation method, and its application. It relates to the field of anti-corrosion coating technology. The preparation method of the emodin-modified amine curing agent of this invention includes: subjecting raw materials including 2-hydroxyemodin, formaldehyde, and 1,5-pentanediamine to a Mannich reaction to obtain the emodin-modified amine curing agent. The emodin-modified amine curing agent used in this invention has a certain rust conversion ability and forms a stable chelate with iron ions, eliminating the need for rust conversion agents and allowing direct application to corroded surfaces. By using a suitable resin and curing agent system ratio, this invention can prepare a high-performance, low-surface-treatment, long-lasting anti-corrosion coating based on bulk rust conversion, applicable to manually cleaned surfaces (St2 / St3, ISO 8501-1), old coatings, high-pressure water jetting, and wet sandblasting substrate surfaces.
Owner:MARINE CHEM RES INST CO LTD
Aluminum etching solution, preparation method and application thereof
The application belongs to the technical field of etching liquid, and particularly relates to an aluminum etching liquid, a preparation method and application thereof. The aluminum etching liquid, with the total mass of the formula being 100%, comprises 50-70% of phosphoric acid, 6-11% of nitrate salt slow-release acid source, 3-8% of organic carboxylic acid buffer stabilizer, 1-4% of aluminum ion high-efficiency complexing agent, 0.5-3% of etching accelerator, 0.1-1.5% of anionic surfactant, and the balance of water. The aluminum etching liquid provided by the application has good etching life and etching stability, can greatly reduce the treatment amount of waste liquid and the replacement frequency of fresh tank liquid, does not need to monitor and supplement nitric acid or acetic acid in the whole life cycle, significantly reduces the operation difficulty and maintenance cost, realizes convenient production, and ensures stable etching performance and greatly improves product yield due to stable tank liquid components.
Owner:HEFEI SINOPISE MATERIALS CO LTD
A distributed power storage device
ActiveCN121416670BScientific and reasonable structureeasy to useSecondary cellsCell component detailsElectrical batteryPower grid
The application discloses a kind of distributed power energy storage devices, it is related to secondary battery technical field, including box, several hollow supports are evenly installed equidistantly in the box, several partition seats are evenly installed equidistantly in the side end surface of hollow support, cabinet is slidably installed in the top of partition seat, limit valve is embedded and installed in the bottom of cabinet side end surface, the end of limit valve is installed with spout, sliding plate is slidably installed in the inside of partition seat, the heat emitted in the process of the present application is driving force, forcibly realizes internal and external interactive heat exchange and internal circulation heat exchange, can effectively remove the heat generated in the process of device operation in time, realize the recycling of energy conversion and utilization, while realizing the efficiency of the base, improve the synchronism and high efficiency of heat exchange work, while prolonging the effective service life of battery, improve the popularization of device, flexible meet the multiple needs of user side cost reduction, power grid side stability and energy side low carbon.
Owner:ZHEJIANG BONA ENERGY DEV CO LTD
An industrial isolator health management method and system based on digital self-calibration
The application discloses an industrial isolator health management method and system based on digital self-calibration, and relates to the technical field of industrial automation, comprising: continuously collecting input end and output end analog signal values of the industrial isolator, calculating real-time transmission error to form an error sequence; establishing a trend model according to the error sequence to predict future transmission error values; when the current error is less than the precision threshold value and the predicted error is greater than the threshold value, calculating a preventive compensation value; determining a perception threshold value according to the output signal change rate, decomposing the compensation value into multiple step amounts, so that the output change generated by each step amount is less than the perception threshold value; and in multiple cycles, sequentially accumulating the step amounts and writing them into a digital compensation register, monitoring the output signal continuity after each writing, and completing the undisturbed online self-calibration. Through the predictive compensation and gradual calibration, the application realizes the online precision maintenance of the industrial isolator, and avoids the system interruption problem in the traditional offline calibration.
Owner:GUANGZHOU XITAI AUTOMATIZATION CONTROL EQUIP CO LTD
A flow path reconfigurable membrane filtration method
The application discloses a membrane filtration method with reconfigurable flow path, which is applied to a system comprising a first main pipe, a second main pipe, a third main pipe, a plurality of membrane filtration modules and a pipe switching module. Each membrane filtration module comprises a membrane group, a first branch pipe, a second branch pipe and a third branch pipe, one of the first branch pipe and the second branch pipe is a feed branch pipe, the other is a discharge branch pipe, and the permeate is discharged from the third branch pipe. The pipe switching module comprises a first switching module arranged between the first main pipe and the first branch pipe, the second branch pipe of each membrane filtration module, and a second switching module arranged between the second main pipe and the first branch pipe, the second branch pipe of each membrane filtration module, and the third branch pipe of each module is communicated with the third main pipe. The method switches the filtration direction of the membrane filtration module by controlling the first switching module and the second switching module, so that the plurality of membrane filtration modules operate in parallel mode, series mode or mixed mode, and dynamic adjustment of the membrane filtration method is realized.
Owner:JIANGSU BANGTEC ENVIRONMENTAL SCI TECH CO LTD
Dehumidification isolating switch
ActiveCN224067606UExtend effective lifeless intrusiveClimate change adaptationDispersed particle separationInterior spaceAmbient humidity
The utility model relates to the technical field of isolating switches, in particular to a dehumidification isolating switch, which comprises an isolating switch body and further comprises a protection part, a dehumidification part and a control part, and is characterized in that the protection part comprises a base for bearing the isolating switch body and an outer sealing cover arranged outside the base; a dehumidification bin is arranged between the base and the outer sealing cover, and the dehumidification bin is used for reducing the internal environment humidity of the outer sealing cover; according to the dehumidification isolating switch, a closed space can be formed through the base and the outer sealing cover which are arranged in the protection part, so that invasion of external moisture is reduced; the humidity in the internal space can be continuously adsorbed through the arranged dehumidification bin, the dehumidification bin is convenient to disassemble and assemble and easy to replace and maintain, the erosion problem of the metal contact of the isolation switch can be relieved, and the effective service life of the isolation switch can be prolonged.
Owner:新疆准能投资有限公司
Automatic control and error-proofing system for LED UV curing equipment and energy-saving methods
PendingCN122546873ANot relying on self-disciplineEliminate operational loopholes
This invention discloses an automatic control and error-proofing system and energy-saving method for LED UV curing equipment, relating to the field of automated UV curing production equipment technology. The system includes: a conveying mechanism, a UV curing mechanism, a feeding identification component, an discharging identification component, an industrial control computer, and a PLC controller. The feeding identification component includes a diffuse reflection photoelectric sensor and a front barcode scanner; the discharging identification component includes a rear barcode scanner; the UV curing mechanism includes independently controllable 365nm and 405nm band LED UV lamp heads; the industrial control computer stores a curing formula database; and the PLC controller has an interlocking control module and a standby control module. This invention achieves forced interlocking between barcode scanning and equipment start / stop, realizing fully automated control and effective error-proofing, significantly reducing the risk of human error and equipment energy consumption.
Owner:HUNAN LAITONG OPTICAL TECH CO LTD
Power battery test data abnormity early warning method and system
PendingCN121995226AAvoid performance misjudgmentsincrease credibilityElectrical testingPower batteryElectrical battery
The invention relates to the technical field of lithium battery manufacturing, in particular to a power battery test data abnormity early warning method and system, and the method comprises the following steps: collecting the operation parameters of test equipment and the test data of a tested power battery in a power battery test process in real time; based on battery state information in the test data, inputting the test data into a preset virtual battery model; calculating a relative deviation ratio between the actually measured voltage of the measured power battery and the analog voltage value; if it is judged that the data exception is not caused by the battery problem, an equipment fault diagnosis step is executed, and fault diagnosis and grade judgment are carried out by comprehensively applying at least two of the following judgment bases in the step: corresponding early warning operation is executed according to the fault grade judged in the fault diagnosis step. The reliability of test data and the credibility of the test process are remarkably improved, and battery performance misjudgment caused by equipment problems is avoided.
Owner:中汽新能(天津)电池科技有限公司
A sling support structure and a sling
The utility model discloses a kind of spreader support structure and spreader, it is related to spreader technical field, the utility model includes portal frame, eight guide supports are connected in the both sides of portal frame, and four springs are connected between the top of eight guide supports and portal frame, two middle plates are connected in the bottom of eight guide supports, and two anti-skid mats are connected in the bottom of two middle plates by two mounting plates;Four pulleys and two groups of hanging rods are connected in the both sides of portal frame, and two anti-off plates are connected in the side of four pulleys.The utility model is set through pull rope, hook, pulley, limit plate and hanging rod, pull rope is designed as M shape, the transmission direction of force can be changed with cooperation pulley, staff only needs to pull down the middle end of pull rope in left and right sides, can be guided support up by pull rope left and right end, change four corners operation to two sides operation, simplify the operation process of spreader limit release;Optimize the operation convenience and reliability of spreader support structure.
Owner:JIANGSU LIZHICHUANG SPECIAL EQUIP MFG CO LTD
Positive electrode sheet and lithium ion battery comprising the same
The application provides a positive electrode sheet for a lithium ion battery and a lithium ion battery comprising the positive electrode sheet, the positive electrode sheet comprising a current collector and specially designed capacity layer and power layer, which can effectively eliminate the negative effects of the lithium supplement material on the battery performance during the lithium supplement material de-lithiation process in an economical and simple manner, thereby significantly improving the first coulomb efficiency, cycle performance and service life of the battery.
Owner:CONTEMPORARY AMPEREX TECHNOLOGY CO LTD
Double-sided magnetic power bank with built-in intelligent temperature control system
PendingCN121770110Aincrease flexibilitymeet real needsBatteries circuit arrangementsElectric powerTemperature controlElectrical battery
The invention relates to a double-sided magnetic power bank with a built-in intelligent temperature control system, and the power bank comprises a bottom plate and a cover plate which are combined to form a housing with a battery compartment inside. The battery is mounted in the battery compartment; the PCB is installed on the inner wall of the cover plate and located on the front side of the battery; the distributed temperature sensing network is composed of a plurality of thermistors arranged at a plurality of key thermal nodes in the power bank and is used for collecting temperature signals; the main control MCU is mounted on the PCB and is coupled to the distributed temperature sensing network; wherein a first magnetic attraction module is arranged in the bottom plate, and a second magnetic attraction module is arranged in the cover plate, so that the double-sided magnetic attraction function of the power bank is realized. The magnetic attraction module and the wireless charging coil are integrated on the two faces of the bottom plate and the cover plate, simultaneous wireless charging of the two high-power devices is achieved, the charging efficiency and the flexibility of use scenes are greatly improved, and the real requirements of multi-device users are met.
Owner:深圳市昇艺科技有限公司
Oven
The application belongs to the field of household appliances, and discloses an oven, which comprises a box body, a fan cover, a first heating element, a first fan, a second heating element and a heat dissipation element. The fan cover divides the inside of the box body into a cooking cavity and a hot air cavity, and the hot air cavity is provided with an air inlet and an air outlet. The second heating element is arranged at the top of the cooking cavity, and the air outlet comprises a first air outlet facing the second heating element. The heat dissipation element is connected with the second heating element, and the side of the heat dissipation element facing the first air outlet is provided with a wind guide surface for guiding the airflow flowing through the second heating element downward to a food placement area. The oven guides the hot air circulation airflow to the second heating element and the heat dissipation element, expands the heat exchange area by using the heat dissipation element, forces the airflow to carry away heat and is directionally guided through the wind guide surface, reduces the accumulation and dissipation of heat at the top, improves the thermal efficiency, shortens the preheating time, improves the temperature uniformity of the cooking cavity, and helps to prolong the service life of the second heating element and the nearby devices.
Owner:HISENSE HOME APPLIANCES GRP CO LTD
PTC regeneration bypass control method for window-type oxygen-enriched membrane fresh air complete machine
PendingCN122107512AEnable a seamless transitionAccurately identify true regeneration needsMechanical apparatusLighting and heating apparatusIndoor air qualityFresh air
This invention discloses a PTC regeneration bypass control method for window-type oxygen-enriched membrane fresh air systems, belonging to the field of air handling equipment control technology. The method includes: real-time monitoring of the oxygen-enriched membrane component performance degradation rate, dew point of the drying unit, indoor carbon dioxide concentration, and indoor-outdoor temperature difference; comprehensively determining the oxygen-enriched membrane performance degradation and the drying unit regeneration needs, and calculating and selecting the optimal time point with the least impact on the indoor environment to initiate regeneration, taking into account indoor air quality and heat load conditions; first switching to bypass ventilation mode to maintain basic air exchange, while simultaneously regenerating the drying unit and independently expelling moisture outdoors; and smoothly switching back to the original operating mode after regeneration is complete. This method solves the problems of improper regeneration timing, impact on indoor ventilation and comfort during regeneration, and high regeneration energy consumption in existing technologies, achieving efficient, energy-saving, and intelligent regeneration and maintenance of core consumables while ensuring continuous indoor air quality.
Owner:GUANGXI TECHCAL COLLEGE OF MACHINERY & ELECTRICITY +1
Controllable portable monitoring and early warning system for civil aviation passenger plane luggage compartment and method thereof
The application provides a controllable portable monitoring and early warning system for a civil aviation passenger plane luggage compartment and a method thereof, and relates to the technical field of luggage compartment monitoring and early warning. The system comprises the following steps: obtaining the communication quality parameters and the current power parameters of each monitoring node in the luggage compartment; constructing a directed graph with each monitoring node as a vertex and the communicable connection between each monitoring node as a directed edge; determining difficult nodes with communication quality parameters lower than a preset threshold; calculating several candidate paths from any difficult node QR to the total end node in the directed graph; assigning a final path to each difficult node according to the candidate paths of each difficult node, and sending the routing information corresponding to the final path to the corresponding monitoring node, so that each monitoring node transmits the collected monitoring data to the total end node according to the corresponding routing information; and the application significantly improves the reliability of data transmission and the network's invulnerability.
Owner:HANGKE TECH DEV
A design method and design system of an intelligent electric energy meter with thermal coupling failure rate correction
The application discloses a kind of intelligent electric energy meter design method and design system of thermal coupling failure rate correction.The design method includes: the original failure rate is calculated based on component stress method to each functional module, thermal coupling failure rate correction factor is calculated according to the thermal coupling parameter between module and the original failure rate is corrected;The thermal coupling degradation degree of each memory is evaluated through forward coupling path, and the data migration direction is determined, the power consumption change caused by data migration is fed back to thermal coupling failure rate correction factor through reverse coupling path, and recalculated and iteratively converges;According to the modified failure rate sorting, targeted design improvement is carried out, and the optimized design scheme is obtained.The design system includes module division and failure rate calculation unit, thermal coupling correction calculation unit, storage migration decision unit, closed-loop iteration unit and design improvement output unit, and each unit cooperates to form an iterative convergence closed loop, and outputs the optimized design scheme.
Owner:HOLLICK ELECTRIC CO LTD
An exhaust piston for a dispensing syringe
ActiveCN224629220UExtend effective lifeReduce blocking area
This utility model discloses an exhaust piston for a dispensing syringe, comprising a syringe, a first filter plate fixedly connected inside the syringe, a telescopic rod fixedly connected to the top of the first filter plate, a limiting groove formed inside the telescopic rod, a locking block slidably connected inside the limiting groove, and multiple blades fixedly connected to the outside of the telescopic rod. Through this structure, the impact force drives the internal telescopic rod to move, causing the internal locking block to move within the limiting groove, thus causing the telescopic rod to rotate the external blades, pulverizing impurities on the surface of the first filter plate. This breaks large impurities into tiny particles, which can either be discharged with the glue through the filter holes or reduce the clogging area of the filter holes, extending the effective service life of the filter plate and avoiding problems such as sudden reduction in glue output or glue breakage due to clogging.
Owner:CHANGSHU JUNZE PRECISION ELECTRONIC TECH CO LTD
Cylindrical filter assembly and solid-liquid separator and separation method for industrial wastewater treatment
PendingCN122643749AImplement targeted pushAvoid sudden increases in torque
The application discloses a cylindrical filtering assembly, a solid-liquid separator for industrial wastewater treatment and a separation method, and belongs to the technical field of solid-liquid separation equipment. The cylindrical filtering assembly comprises a circular filter cartridge, and a feeding pipe is arranged at the top of the circular filter cartridge. The circular filter cartridge comprises an annular pipe, a side filter cartridge, a blocking seat, a blocking plate, an end shell and a fixing rod. The fixing rod is coaxially arranged with the circular filter cartridge and is arranged in the circular filter cartridge. The end shell is fixedly connected with the fixing rod. A pushing block is arranged in the circular filter cartridge. Pushing rods are fixedly arranged at the two sides of the pushing block. Through linkage cooperation of the pushing block and the openable and closable blocking plate, directional pushing and automatic deslagging of solid waste are realized, and the problems of filter hole blockage and easy jamming of the pushing mechanism are relieved. The side filter cartridge is rotationally matched with a ball to clean the filter hole, the filter hole is realized on-line self-cleaning, and the continuous operation cycle is prolonged. The double-side pressure filtering assembly is used for closed extrusion of solid waste, the water content is effectively reduced, and deep dewatering is realized.
Owner:SHANXI SHANAN BIQUAN SPONGE CITY TECH CO LTD
An aluminum conductor surface cleaning device
The application belongs to the technical field of cleaning devices, and particularly relates to an aluminum conductor surface cleaning device, which comprises a fixed plate and two cleaning belt winding and unwinding assemblies, the two cleaning belt winding and unwinding assemblies are arranged on the fixed plate and oppositely arranged in an up-down mode; the cleaning belt winding and unwinding assembly comprises winding roller one and winding roller two, the winding roller one and the winding roller two are rotationally connected with the fixed plate; the winding roller two is provided with a cleaning belt roll; the fixed plate is provided with a control assembly matched with the winding roller two; the winding roller one in the two cleaning belt winding and unwinding assemblies is connected with a driving assembly, and the two winding rollers one are driven to rotate through the driving assembly; the winding and unwinding roll structure of the roll cleaning belt is adopted, the dirty part is timely wound and stored, does not participate in subsequent cleaning, ensures that the clean cleaning belt is always in contact with the wire, and effectively eliminates the secondary pollution problem caused by dirt accumulation of the existing circulating sponge driving belt.
Owner:BAOTOU ZHENXIONG COPPER CO LTD
A segmented calibration method and system for carbon film angle sensors based on wear trend prediction
ActiveCN121834730BSolve the problem of insufficient calibration accuracyImprove measurement accuracy and stability
This invention discloses a segmented calibration method and system for carbon film angle sensors based on wear trend prediction. The method includes: collecting operational characteristic data and rated performance parameters of the carbon film angle sensor to construct a full lifecycle operation database; combining the data and contact wear characteristics, dividing the lifecycle into at least two wear stages according to the proportion of cumulative action times or the proportion of output signal deviation; performing environmental parameter signal drift compensation in the low wear stage, and superimposing linearity / mechanical fit deviation correction related to the wear degree in the medium and high wear stages; comparing the calibrated output signal with the standard reference value, updating the stored calibration parameters if the standard is met, and adjusting the parameters and repeating the calibration until the performance is qualified. This method extends the effective service life of the sensor and reduces equipment maintenance costs.
Owner:ZAOYANG CITY MILANG SCI & TECH CO LTD
Photo-repair perovskite photoelectric device and performance repair method thereof
PendingCN122054815AExtend effective lifeRealize in-situ dynamic passivation repairHole transport layerLight responsive
The invention belongs to the field of photovoltaic technology, and particularly relates to a photo-repairing type perovskite photoelectric device and a performance repairing method thereof. The light repair type perovskite photoelectric device comprises a transparent conductive substrate, an electron transport layer, a perovskite light absorption layer, a hole transport layer and a metal electrode which are in contact in sequence, and light response type passivation molecules are contained at the interface of the perovskite light absorption layer and an adjacent functional layer or in the perovskite light absorption layer. The light response type passivation molecules can release repairing groups combined with defect sites in the perovskite light absorption layer when illuminated by a certain wavelength and / or intensity. According to the perovskite photoelectric device provided by the invention, in-situ dynamic passivation repair can be carried out on defects generated in operation of the perovskite photoelectric device under a specific illumination condition, and the effective service life of the perovskite photoelectric device is remarkably prolonged.
Owner:CNNC OPTOELECTRONICS TECH (SHANGHAI) CO LTD
Tooling fixture of numerical control machining center
ActiveCN121468228Btimely interventionavoid pollutionPositioning apparatusMaintainance and safety accessoriesNumerical controlPhysics
The present application relates to the field of machining equipment, specifically to a tooling fixture of a numerical control machining center, comprising an electric three-jaw chuck, a clamping block connected to the electric three-jaw chuck through a fan-shaped block arranged thereon, the clamping block being fixedly connected to the corresponding jaw of the electric three-jaw chuck, a surface changing mechanism slidingly arranged on the clamping block, and a contact block fast detachably connected to the surface changing mechanism, the electric three-jaw chuck driving its jaw to drive the clamping block to move, so that the clamping block completely blocks the non-abutting surface of the contact block before abutting against the workpiece, effectively preventing the generated debris from adhering to and contaminating the contact block during machining, and then the clamping block pushes the working surface of the contact block to stably abut against the outer side surface of the bar; when the workpiece is replaced, the surface changing mechanism drives the contact block to rotate half a circle to quickly switch the working surface, realizing efficient continuous clamping, and the non-abutting surface of the contact block is automatically cleaned after surface changing through the cleaning assembly, and the cleaning effect is detected in real time and fed back by the visual assembly.
Owner:JINAN ZHANGLI MACHINERY
Multi-channel high-flux catalytic material evaluation system
PendingCN121955275Astable mixImprove buffering effectChemical analysis using catalysisThermodynamicsControl system
The invention belongs to the technical field of testing, and particularly discloses a multi-channel high-flux catalytic material evaluation system. A gas distribution system of the system comprises a plurality of gas pipelines, a plurality of mass flow controllers I, a mixing tank, a buffer tank and a plurality of branch mass flow controllers, the mass flow controllers I and switch valves I are arranged on the gas pipelines respectively, the front ends and the rear ends of the gas pipelines are connected with a gas source and the mixing tank respectively, the mixing tank is communicated with the buffer tank, and the branch mass flow controllers are arranged on the branch mass flow controllers. A gas outlet of the buffer tank is provided with a plurality of mixed gas branches; the steam system comprises a liquid supply source, an auxiliary carrier gas source and a vaporization tank, the liquid supply source and the auxiliary carrier gas source are connected with the vaporization tank, and the vaporization tank is connected with the multiple mixed gas branches at the outlet end of the buffer tank, the mixing tank or the buffer tank through pipelines; the reaction system comprises a heating box, a multi-channel reactor and an infrared heating structure; the control system is electrically connected with the switch valve I, the mass flow controller I, the switch valve II, the mass flow controller II, the infrared heating pipe and the analysis system.
Owner:YUNNAN PRECIOUS METALS LAB CO LTD +2
Pultrusion die
The utility model discloses a kind of pultrusion mould, it is related to mould manufacturing technical field, the pultrusion mould includes mould body and coating layer, mould body is equipped with cavity;Coating layer includes laminatedly arranged adhesive layer, intermediate lubricating layer and wear-resistant lubricating layer, adhesive layer covers the surface of cavity.The utility model aims at improving the demoulding performance of pultrusion mould, reduce surface wear, reduce maintenance cost.
Owner:SICHUAN ZHOUYU HUAZHOU ARCHITECTURAL DESIGN CO LTD
Resistance measurement method and system for eliminating reference voltage precision dependence
PendingCN121955519AEliminate dependenciesSolve for absolute accuracyResistance/reactance/impedenceElectrical resistance and conductanceClassical mechanics
The invention belongs to the technical field of resistance measurement, and provides a resistance measurement method and system for eliminating reference voltage precision dependence, and the method comprises the steps: system initialization, signal collection, calculation of a measured resistance value, and output of a measurement result of the measured resistance. According to the invention, the same unstable voltage is used as the reference voltage of the analog-to-digital converter and the power supply voltage of the series branch of the known resistor and the measured resistor at the same time, and the deduced specific mathematical formula is used for calculation, so that the reference voltage variable in the formula for finally calculating the measured resistor is completely eliminated; therefore, the problem that the measurement precision of a traditional method seriously depends on the absolute precision and stability of a reference voltage source is fundamentally solved, the dependence on the reference voltage precision is thoroughly eliminated, and systematic errors of measurement results caused by voltage fluctuation, inaccuracy or temperature drift are avoided. And the measurement stability of the system in a non-ideal power supply environment is greatly improved.
Owner:HEBEI DOUJI TECH CO LTD
A CMP abrasive pad dresser with gradient wear compensation characteristics and its manufacturing process
PendingCN122077517ABreak the limitation of linear performance degradation over timeImprove wear resistanceLapping machinesAbrasive surface conditioning devicesChrome platingMechanical engineering
This invention belongs to the field of semiconductor manufacturing and abrasive grinding wheel technology, specifically relating to a CMP polishing pad dresser with gradient wear compensation characteristics and its fabrication process. The dresser of this invention includes a substrate and a composite cutting layer distributed on its surface. The composite cutting layer consists of large-particle-size diamond abrasive distributed in a first region of a sector shape and small-particle-size diamond abrasive distributed in a second region. The exposed height of the large-particle-size diamond abrasive is greater than that of the small-particle-size diamond abrasive, and both are embedded and fixed by a multi-layer metal structure including multiple nickel plating layers and an outermost chromium-plated anti-corrosion layer. This invention utilizes the mechanism of diamond abrasive of different particle sizes being exposed in stages according to the wear progress during the dressing process to offset the performance degradation caused by cutting edge dulling, solving the problems of short lifespan and linear decline in dressing rate of traditional dressers. Experiments have shown that this structure can significantly extend the lifespan of the dresser and maintain the stability of the dressing rate over a long period, which is of great significance for improving the consistency of wafer planarization processes.
Owner:ZHONGFU CENTURY SEMICONDUCTOR TECHNOLOGY (SUZHOU) CO LTD