Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Hiro

34results about How to "Improve high stability" patented technology

Method and apparatus for measuring cofocal combined ultra-long focal distance

InactiveCN101408478AReduce the measurement optical path lengthReduce the impactTesting optical propertiesPhysicsFocal position
The invention belongs to the technical field of optical precision measurement, and relates to a method for measuring super long focal length of a confocal combination lens and a device thereof. The method is as follows: firstly determining the focal position of a reference lens and the focal position of the combination of the measured lens and the reference lens according to the confocal focusing principle, measuring the distance delta between the two focal points and the distance d0 between the two lenses, and substituting the delta and the d0 into a formula to calculate the focal length value of the measured lens, a pupil filtering technique can also be used in the measurement to enhance the sensitivity of focal length measurement. The invention proposes that accurate focusing is realized by the characteristics that an object corresponds to the microscope objective focus when the confocal point responds to the maximum curve value, and extends the confocal microscopy principle to the super long focal length measurement field, and proposes the confocal focusing principle. The method combines the confocal focusing principle with the combination lens method, has the advantages of high measurement precision and strong anti-environment interference ability, and can be used for high-precision focal length measurement during the detection and assembly of the super-long focal length lens.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY

Recovery system and recovery method for selenium drum

The invention discloses a recovery system and a recovery method for a selenium drum. The recovery system comprises a selenium drum crusher, a negative-pressure ink powder collecting device, a magnetic separator, a high-pressure cleaner, an eddy separator and a vibrating separator, wherein an input end of the selenium drum crusher is connected with a conveying device, and an output end of the selenium drum is communicated with the magnetic separator; the negative-pressure ink powder collecting device is arranged on the selenium drum crusher, so that the whole recovery system can work in a negative-pressure state; an output end of the magnetic separator is communicated with the high-pressure cleaner; an output end of the high-pressure cleaner is communicated with the eddy separator; a discharge end of the eddy separator is communicated with the vibrating separator. When the selenium drum is recovered, the selenium drum is crushed at first, the whole shell of the selenium drum is crushed in a length direction of the selenium drum for ensuring that a metal bar in the selenium drum falls off integrally, the fallen metal bar is integrally recovered, and other component materials of the selenium drum are recovered. According to the scheme, the metal bar in the selenium drum can be completely recovered and the reliability and the feasibility of the whole recovery system for the selenium drum are greatly improved.
Owner:上海绿环机械有限公司

Production processes of rock asphalt modified asphalt and mixture

The invention discloses a production process of rock asphalt modified asphalt and a production process of a rock asphalt modified asphalt mixture. The production process of rock asphalt modified asphalt comprises the following process steps of: placing matrix asphalt in an asphalt tank with a stirring device to heat to about 160 DEG C, and starting the stirring device; then slowly adding a part of rock asphalt and a stabilizer under stirring, heating to about 175 DEG C, and stirring for 30 minutes at the temperature; adding the rest asphalt to continuously stir for 1-1.5 hours to ensure that asphalt particles are dissolved completely; and moving the prepared rock asphalt modified asphalt in a finished product storage tank, and properly stirring in the storage process. When in use, mineral aggregate is heated and controlled to about 185 DEG C; the rock asphalt modified asphalt is added in the mineral aggregate to stir, and the temperature is controlled to about 175 DEG C to obtain the mixture; and the mixture is discharged when the temperature is reduced to 170 DEG C. By adopting the process to prepare the rock asphalt modified asphalt, the operations are simple and rock asphalt can be distributed in the matrix asphalt evenly.
Owner:JIANGYIN TAIFU ASPHALTUM

Organic phospholipid hydrolase, gene, recombinant expression transformant and application thereof

The invention relates to organic phospholipid hydrolase, a mutant, an encoding gene and an application thereof in degradation of organophosphorus pesticides. The organic phospholipid hydrolase PoOPH is originated from edible oil pseudomonadaceae, the mutant of which is a protein which is derived from the protein shown as an amino acid sequence SEQ ID No.1 in a sequence table and has the activity of the organic phospholipid hydrolase, wherein the 250th and the 263rd amino acids are substituted by a single site or double sites. Compared with a parent, the catalytic activities of the PoOPH mutant to parathion-methyl and paraoxon-ethyl are respectively improved by 5680 and 37.5 folds. Meanwhile, the PoOPH mutant maintains the excellent heat stability of the parent. The PoOPH mutant provided by the invention has two attributes at the same time: high vitality and excellent heat stability and has a good application prospect in the field of degrading organophosphorus pesticides.
Owner:EAST CHINA UNIV OF SCI & TECH

Porous carbon and nitrogen two-dimensional nano-sheet and method for preparing IPMC electrochemical actuator

The invention provides a porous carbon and nitrogen two-dimensional nano-sheet and a method for preparing an IPMC electrochemical actuator by using the porous carbon and nitrogen two-dimensional nano-sheet. The porous carbon and nitrogen two-dimensional nano-sheet is prepared with the method which comprises the following steps: uniformly grinding carbon and nitrogen precursors and glucose, and thus obtaining a mixture; heating the mixture to 450-600 DEG C, and thus obtaining a compound of graphite-phase carbon and nitrogen and two-dimensional nano-carbon sheets; under the protection of gas, heating the compound to 700-1000 DEG C, and thus obtaining the porous carbon and nitrogen two-dimensional nano-sheet. The IPMC electrochemical actuator prepared from the porous carbon and nitrogen two-dimensional nano-sheet shows excellent electrochemical energy storage and electric mechanical response performance, for example, large specific capacitance, high response rate, large deformation and high stability, therefore having great potential applications in the field of smart materials such as insect wings, braille display and bionics of medical catheters. In addition, the method is simple in process, does not need complex equipment, and is easy for industrial production.
Owner:SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI

Production process of environment-friendly microwave ceramic copper-clad plate

ActiveCN102658704ALow Dielectric Constant Thermal CoefficientEfficient signal transmissionLamination ancillary operationsLaminationGlass fiberMicrowave
The invention relates to a production process of an environment-friendly microwave ceramic copper-clad plate. The environment-friendly microwave ceramic copper-clad plate is mainly applied to the fields meeting high-end requirements, such as microwave and millimeter-wave satellite communications. The process comprises the following steps of: carrying out modification treatment on the surface of glass fiber cloth and immersing in synthetic slurry to form a prepreg; rolling or cutting and laminating, and anchoring a copper foil; then carrying out cold machine pre-pressing to evacuate air; and under the vacuum condition of 10-20 Kpa, keeping the pressure of a hot pressing machine at the temperature of 350-400 DEG C and at the pressure of 15-20 Mpa to be cured for 1-2 hours to prepare the product. The environment-friendly microwave ceramic copper-clad plate has microwave high-frequency low dielectric epsilonr, low loss tan delta, efficient signal transmission and high stability.
Owner:CHENZHOU GONGTIAN ELECTRONICS CERAMICS TECH

Power flexible driving system of new energy automobile

InactiveCN105857063ARealization of power flexible transmissionImprove performanceControl devicesNew energyDrive motor
The invention relates to a power flexible driving system of a new energy automobile. The power flexible driving system comprises a drive motor and a speed changer. The power flexible driving system is characterized in that the drive motor is in drive connection with the speed changer through a torsion damper, that is, a drive disk of the torsion damper is fixedly connected with an output shaft of the drive motor through an inertia flywheel, and a driven disk of the torsion damper is fixedly connected with an input shaft of the speed changer. The system can avoid low-frequency resonance phenomenon and reduce torsional vibration and noise of the driving system, reduce gear shifting impact in the gear shifting process of a new energy automobile EMT and reduce reverse torque impact, caused when disturbance torque excitation reacts on the driving system, on the drive motor. Vehicle starting, acceleration stationarity, gear shifting smoothness and riding comfort can be improved, damage to a power driving device of shaking impact is lowered, and the power flexible driving system has important significance for improving the reliability of the motor, the EMT and the driving system and prolonging service life.
Owner:TANGSHAN PULIN YIWEI TECH CO LTD +2

Heat-expandable microspheres and application thereof

Heat-expandable microspheres containing a thermoplastic resin shell and a thermally-vaporizable blowing agent encapsulated therein. The thermoplastic resin is a polymer of a polymerizable component containing acrylonitrile, methacrylonitrile and acrylate ester and which satisfies specific conditions 1 and 2, where Condition 1: the amount of the acrylonitrile (A)<the amount of the methacrylonitrile (B), and Condition 2: the total amount of the acrylonitrile (A), the methacrylonitrile (B) and the acrylate ester (C) in the polymerizable component ranges from 61 to 100 wt %. Also disclosed are hollow resin particles manufactured by expanding the heat-expandable microspheres, a composition containing a base component and at least one selected from the heat-expandable microspheres and the hollow resin particles, and a formed article manufactured by forming or molding the composition.
Owner:MATSUMOTO YUSHI SEIYAKU

A polyphenylene sulfide resin-based carbon fiber suspension sizing agent and a preparation method thereof

ActiveCN109722902AAvoid various application problems such as aging hardeningAvoid modification and preparation difficultiesCarbon fibresSolid componentPolymer science
The invention discloses a polyphenylene sulfide resin-based carbon fiber suspension sizing agent and a preparation method thereof. The sizing agent is composed of polyphenylene sulfide resin powder, sodium polyacrylate, polyethylene glycol and deionized water, wherein the polyphenylene sulfide resin powder accounts for 65-75wt% of the total mass of the solid components, the sodium polyacrylate accounts for 12-17wt% of the total mass of the solid components, and the polyethylene glycol accounts for 13-18wt% of the total mass of the solid components. Sized carbon fibers prepared by the sizing agent are suitable for intermediates such as carbon fiber fabrics, prepregs and the like for polyphenylene sulfide resin-based composite materials, and have good mechanical properties, temperature resistance and two-phase interface bonding force.
Owner:CHINA PETROLEUM & CHEM CORP +1

Plant slicing device for biological experiment and use method of plant slicing device

The invention discloses a plant slicing device for a biological experiment and a using method thereof, and particularly relates to the technical field of experimental equipment, the plant slicing device comprises two guide frames, a linkage rotating rod is arranged between the two guide frames, the linkage rotating rod is sleeved with a cutter disc clamped by a plug pin, and a switching mechanism is arranged outside the cutter disc; the switching mechanism comprises a lower cutting blade arranged outside the cutter disc, a first radian cutter groove is formed in one side of the outer portion of the lower cutting blade, and a second radian cutter groove is formed in the other side of the outer portion of the lower cutting blade. By adopting the switching mechanism, proper cutters can be selected according to actual sliced plant conditions, slice deviation during slicing can be effectively avoided, the uniformity during slicing is improved, it is guaranteed that the thickness can be controlled without deviation of slices, different standby cutters can be switched for use, switching is convenient, more time is saved, and the cutting efficiency is improved. And the service time of the slicing device is prolonged.
Owner:MUDANJIANG NORMAL UNIV

Production process of environment-friendly microwave ceramic copper-clad plate

The invention relates to a production process of an environment-friendly microwave ceramic copper-clad plate. The environment-friendly microwave ceramic copper-clad plate is mainly applied to the fields meeting high-end requirements, such as microwave and millimeter-wave satellite communications. The process comprises the following steps of: carrying out modification treatment on the surface of glass fiber cloth and immersing in synthetic slurry to form a prepreg; rolling or cutting and laminating, and anchoring a copper foil; then carrying out cold machine pre-pressing to evacuate air; and under the vacuum condition of 10-20 Kpa, keeping the pressure of a hot pressing machine at the temperature of 350-400 DEG C and at the pressure of 15-20 Mpa to be cured for 1-2 hours to prepare the product. The environment-friendly microwave ceramic copper-clad plate has microwave high-frequency low dielectric epsilonr, low loss tan delta, efficient signal transmission and high stability.
Owner:CHENZHOU GONGTIAN ELECTRONICS CERAMICS TECH

Environment-friendly mechanical device for solid waste smashing

The invention relates to the technical field of waste treatment, in particular to an environment-friendly mechanical device for solid waste smashing. The environment-friendly mechanical device comprises a bottom plate and a smashing box fixedly installed above the bottom plate, wherein a motor is fixedly installed on the upper surface of the smashing box, the output end of the motor is connected with a smashing shaft, and a plurality of smashing bulges are symmetrically installed on the two sides of the smashing shaft. When the device is used, waste is conveniently smashed through the smashing box, materials are conveniently filtered through a filtering device, waste residues meeting requirements fall off, waste residues not meeting the requirements continue to be smashed, and a drying device is conveniently driven to work through a control device when the waste residues fall off; and when the waste falls, the smashing shaft rotates to smash the waste firstly, then a spring is driven by the smashing shaft to stretch out and draw back, a ball is driven to stretch a second spring to rotate, a ball body at the end of a rotating rod is driven to make contact with an arc-shaped groove in a discharging plate, and then a filtering plate is driven to move up and down.
Owner:任剑红

Method and apparatus for measuring cofocal combined ultra-long focal distance

InactiveCN101408478BReduce measurementReduced impact of focal length measurement accuracyTesting optical propertiesOphthalmologyFocal position
The invention belongs to the technical field of optical precision measurement, and relates to a method for measuring super long focal length of a confocal combination lens and a device thereof. The method is as follows: firstly determining the focal position of a reference lens and the focal position of the combination of the measured lens and the reference lens according to the confocal focusingprinciple, measuring the distance delta between the two focal points and the distance d0 between the two lenses, and substituting the delta and the d0 into a formula to calculate the focal length value of the measured lens, a pupil filtering technique can also be used in the measurement to enhance the sensitivity of focal length measurement. The invention proposes that accurate focusing is realized by the characteristics that an object corresponds to the microscope objective focus when the confocal point responds to the maximum curve value, and extends the confocal microscopy principle to thesuper long focal length measurement field, and proposes the confocal focusing principle. The method combines the confocal focusing principle with the combination lens method, has the advantages of high measurement precision and strong anti-environment interference ability, and can be used for high-precision focal length measurement during the detection and assembly of the super-long focal length lens.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY

A method for continuous positioning and detection of preforms

The invention provides a continuous type positioning detecting method for bottle preform. The continuous type positioning detecting method comprises steps of bottle preform charging, bottle preform conveying, bottle preform limiting, photographing and detecting, bottle preform removing, waste outputting and bottle preform outputting. Bottle preform is transmitted into detecting equipment in a linear mode, and photographing and detecting are synchronously realized in a linear transmission process; meanwhile, a bottle preform self-rotating limiting assembly in a detecting process is matched to realize detecting thread integration of a bottle mouth of the bottle preform, and photographing detecting for bottle body flaws of the bottle preform is performed while thread integrity detection on threads of a bottle lid of the bottle preform is realized, so that detecting efficiency is greatly improved, detecting variety is improved, and the technical problems that efficiency is low, cost is great and linear transmission detection cannot be realized in a bottle preform detecting process in the prior art are solved.
Owner:DEMARK (CHANGXING) INJECTION SYST CO LTD

High-perpendicularity electric pole and construction technology thereof

The invention relates to a high-perpendicularity electric pole and a construction technology thereof, and relates to the technical field of electric pole construction, the high-perpendicularity electric pole comprises a vertically-arranged pre-buried base and a linear rod, and the linear rod is located at the top of the pre-buried base and is coaxially arranged with the pre-buried base. The electric pole further comprises a first clamping seat, a second clamping seat and a plurality of positioning pieces, the first clamping seat is installed at the top of the embedded base and is coaxial with the embedded base, the second clamping seat is installed at the bottom of the linear rod and is coaxial with the linear rod, and the first clamping seat and the second clamping seat are stacked and fixedly connected. The positioning piece is installed on the second clamping base, a plurality of positioning grooves are formed in the side, facing the second clamping base, of the first clamping base, the positioning piece comprises a positioning rod, one end of the positioning rod is connected with the second clamping base, and the other end of the positioning rod is correspondingly inserted into the positioning grooves. The electric pole has the effects that the perpendicularity of the linear rod is improved during mounting and positioning, the situation that the linear rod inclines is better reduced, and potential safety hazards of the electric pole are reduced conveniently.
Owner:CHANGZHOU CITY FEIHUANG STEEL POLE

A kind of electric pole with high verticality and its construction technology

This application relates to a high verticality electric pole and its construction technology, which relates to the field of electric pole construction technology, wherein a high verticality electric pole includes a vertically arranged pre-buried base and a straight pole, and the straight pole is located The top of the base is set coaxially with the pre-embedded base; it also includes a first deck, a second deck and several positioning pieces, the first deck is installed on the top of the pre-embedded base and coaxially set with the pre-embedded base, the second deck Installed on the bottom of the linear rod and set coaxially with the linear rod, the first deck and the second deck are stacked and fixedly connected; the positioning part is installed on the second deck, and the first deck faces the side of the second deck A plurality of positioning grooves are provided, and the positioning member includes a positioning rod, one end of which is connected to the second card holder, and the other end is correspondingly inserted into the positioning groove. The application has the effect of improving the verticality of the straight pole during installation and positioning, better reducing the inclination of the straight pole, and conveniently reducing the potential safety hazard of the electric pole.
Owner:CHANGZHOU CITY FEIHUANG STEEL POLE

Multifunctional pressure plate assembly for cutting machine

The invention discloses a multifunctional pressure plate assembly for a cutting machine. The multifunctional pressure plate assembly comprises a height fixing assembly and a pressure plate main assembly, wherein the lower part of the pressure plate main assembly is provided with a limiting mechanism for ensuring that a cutter head assembly of the cutting machine stably rotates and shears; the height fixing assembly and the pressure plate main assembly are installed side by side, a supporting plate used for bearing the limiting mechanism is installed on the height fixing assembly, and a telescopic device used for fixing the height of the supporting plate is connected to the supporting plate; and the supporting plate synchronizes the working heights of the limiting mechanism and the cutter head assembly by supporting the limiting mechanism after height setting. The multifunctional pressure plate assembly has the advantages that an auxiliary protection effect on the pressure plate can be achieved, and a cutter head is prevented from falling off and deviating; and high-quality tailoring of tailored fabrics with different thicknesses can be realized.
Owner:武汉天铭智能设备有限公司

A toner cartridge recovery system and recovery method

The invention discloses a recovery system and a recovery method for a selenium drum. The recovery system comprises a selenium drum crusher, a negative-pressure ink powder collecting device, a magnetic separator, a high-pressure cleaner, an eddy separator and a vibrating separator, wherein an input end of the selenium drum crusher is connected with a conveying device, and an output end of the selenium drum is communicated with the magnetic separator; the negative-pressure ink powder collecting device is arranged on the selenium drum crusher, so that the whole recovery system can work in a negative-pressure state; an output end of the magnetic separator is communicated with the high-pressure cleaner; an output end of the high-pressure cleaner is communicated with the eddy separator; a discharge end of the eddy separator is communicated with the vibrating separator. When the selenium drum is recovered, the selenium drum is crushed at first, the whole shell of the selenium drum is crushed in a length direction of the selenium drum for ensuring that a metal bar in the selenium drum falls off integrally, the fallen metal bar is integrally recovered, and other component materials of the selenium drum are recovered. According to the scheme, the metal bar in the selenium drum can be completely recovered and the reliability and the feasibility of the whole recovery system for the selenium drum are greatly improved.
Owner:上海绿环机械有限公司

Continuous type positioning detecting method for bottle preform

The invention provides a continuous type positioning detecting method for bottle preform. The continuous type positioning detecting method comprises steps of bottle preform charging, bottle preform conveying, bottle preform limiting, photographing and detecting, bottle preform removing, waste outputting and bottle preform outputting. Bottle preform is transmitted into detecting equipment in a linear mode, and photographing and detecting are synchronously realized in a linear transmission process; meanwhile, a bottle preform self-rotating limiting assembly in a detecting process is matched to realize detecting thread integration of a bottle mouth of the bottle preform, and photographing detecting for bottle body flaws of the bottle preform is performed while thread integrity detection on threads of a bottle lid of the bottle preform is realized, so that detecting efficiency is greatly improved, detecting variety is improved, and the technical problems that efficiency is low, cost is great and linear transmission detection cannot be realized in a bottle preform detecting process in the prior art are solved.
Owner:DEMARK (CHANGXING) INJECTION SYST CO LTD

Method for comprehensively evaluating adenovirus pAd-M3C titer by combining TCID50, MOI, GTU and PFU

The invention provides a method for comprehensively evaluating the titer of adenovirus pAd-M3C by combining TCID50, MOI, GTU and PFU. Three detection methods of TCID50, MOI and GTU are integrated, after experimental operation steps are improved and refined, the adenovirus pAd-M3C titer is detected at the same time, conversion and comparison are carried out through PFU, and the TMGP method is called for short, so that an original single method can be optimized and improved in repeatability, stability, sensitivity, usability and time consumption, the effectiveness of adenovirus titer detection is improved, and the method is suitable for popularization and application. And a foundation is laid for subsequent experimental standard operation. The TMGP method can be used for estimating the MOI value of the virus titer within 24-48 hours, verifying GTU data within 36-48 hours and comparing the accurate titer of TCID50 on the most critical tenth day, so that repeated experiments are reduced, the experiment cost is reduced, and the effectiveness is improved.
Owner:FUJIAN ACAD OF MEDICAL SCI

Tractor distributor with high-stability one-way valve

The invention discloses a tractor distributor with a high-stability one-way valve. The tractor distributor comprises a valve body, a front cover and a back cover. The valve body is internally provided with a valve rod, and the two ends of the valve rod extend into the front cover and the back cover respectively. The front cover is provided with a handle. The valve body is provided with a one-way valve cavity, and a one-way valve reset spring, a one-way valve element and a one-way valve steel ball are arranged in the one-way valve cavity. The one-way valve element comprises a front guide body, a middle connecting body and a tail end. A two-stage guide body is arranged on the peripheral face of the middle connecting body, and an unload groove penetrating through the two-stage guide body in the axial direction of the one-way valve element is formed in the two-stage guide body. The end face, matched with the valve body, of the back cover is provided with a sealing groove, and a special-shaped sealing ring is arranged in the sealing groove. The tractor distributor has the advantages that the problems that the periphery of a front guide body of a valve element of an existing one-way valve is abraded, a sealing piece is pressed and damaged easily and sealing becomes invalid can be solved, the sealing effect of the back cover is good, and the tractor distributor cannot be contaminated by dust easily.
Owner:HEFEI CHANGYUAN HYDRAULICS

Hydropower station drainage channel floating object intercepting device

The invention discloses a hydropower station drainage channel floating object intercepting device, and particularly relates to the technical field of floating object intercepting, the hydropower station drainage channel floating object intercepting device comprises an intercepting floating column, a floating intercepting column is arranged at one end of the intercepting floating column, floating supporting plates are arranged on one side of the floating intercepting column and one side of the intercepting floating column, and a monitoring and removing mechanism is arranged above the floating supporting plates; the monitoring and removing mechanism comprises a rack plate arranged above the floating supporting plate, and the upper portion of the rack plate is meshed with a driving gear. By adopting the monitoring and removing mechanism, whether the intercepting device is damaged or not can be inspected regularly, problems can be found in time, and maintainers can be dispatched to perform on-site maintenance operation in time, so that the situation that the device is damaged to cause floating object leakage to affect blockage of a drainage channel can be avoided, the intercepting treatment effect can be improved, and later maintenance operation is facilitated; intelligent interception processing operation is achieved, the workload is small, and the processing cost is low.
Owner:JILIN SONGJIANGHE HYDROELECTRIC POWER +2

Porous carbon and nitrogen two-dimensional nanosheets and method for preparing ipmc electrochemical actuators

The invention provides a porous carbon-nitrogen two-dimensional nanosheet and a method for preparing an IPMC electrochemical driver by using the porous carbon-nitrogen two-dimensional nanosheet. The porous carbon-nitrogen two-dimensional nanosheet is prepared by the following method: the carbon-nitrogen precursor and glucose are uniformly ground to obtain a mixture, and the mixture is heated to 450°C to 600°C to obtain graphite phase carbon nitrogen and two-dimensional nanocarbon sheet The composite; under the protection of gas, the composite is heated to 700°C-1000°C to obtain a porous carbon-nitrogen two-dimensional nanosheet. The IPMC electrochemical actuator prepared by using the porous carbon-nitrogen two-dimensional nanosheets exhibits excellent electrochemical energy storage and electromechanical response performance, such as large specific capacitance, fast response rate, large deformation and high stability. Therefore, it has great potential applications in the field of smart materials such as insect wings, Braille displays, and bionic medical catheters. In addition, the method has a simple process, does not require complex equipment, and is easy to industrialize production.
Owner:SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI

Environment friendly microwave medium ceramic substrate

The invention relates to an environment friendly microwave medium ceramic substrate which is mainly used for the circuits of microwave and millimeter wave satellite communication products, military radar products, electronic navigation products, microwave safety monitoring products, and the like. The substrate is prepared by adopting the following steps of: directly mixing ceramic microcrystal powder with polytetrafluoroethylene (PTFE) powder, PTFE emulsion, glass fiber powder, liquid-state epoxy resin and PVA (Polyvinylalcohol) solution raw material and micro flame-retardant additive raw materials: brominated resin, antimony pentoxide (Sb2O5) and bismuth trioxide (Bi2O3); carrying out blooming, primary drying, laminating, finish rolling, two-surface or two-way continuous sizing, redrying, two-surface or two-way continuous copper foil coating, tailoring and high-pressure lamination; then vacuumizing and curing for 50-60min at low temperature of 170-200 DEG C. The invention does not contain Nb heavy metal components and has good properties of microwave high frequency band low dielectric Epsilonr, low loss tan delta, high signal transmission efficiency and high stability and the advantages of simple process and low sintering temperature and can be cofired with a silver electrode.
Owner:CHENZHOU GONGTIAN ELECTRONICS CERAMICS TECH

Anti-collapse stacking device for logistics transportation

The invention discloses an anti-collapse stacking device for logistics transportation, and belongs to the technical field of stacking for logistics transportation. The anti-collapse stacking device for logistics transportation comprises a guide spiral ring plate, a driving box is mounted at the bottom end of the guide spiral ring plate, a driving rotating rod is arranged on the inner wall of the interior of the driving box, a driving gear is arranged outside the driving rotating rod, and a transmission mechanism is arranged on one side of the driving gear. By adopting the transmission mechanism, through the whole driving gear and the vertical supporting force on the driving gear, annular dispersion, multi-point-position supporting and multi-point-position rolling friction operation are realized, the vertical supporting friction force on the driving gear is reduced, namely, the transmission force of the first linkage gear and the second linkage gear to the driving gear during transmission can be reduced, and the transmission effect can be completed by applying small transmission force, so that abrasion between the gears is small, long-time use is easy, the service life of gear transmission is greatly prolonged, and the maintenance frequency is reduced.
Owner:天津市广通信息技术工程股份有限公司

Distributor for tractor with high stability check valve

ActiveCN104747521BEasy to pullEasy to wrench by handServomotor componentsSteel ballEngineering
The invention discloses a tractor distributor with a high-stability one-way valve. The tractor distributor comprises a valve body, a front cover and a back cover. The valve body is internally provided with a valve rod, and the two ends of the valve rod extend into the front cover and the back cover respectively. The front cover is provided with a handle. The valve body is provided with a one-way valve cavity, and a one-way valve reset spring, a one-way valve element and a one-way valve steel ball are arranged in the one-way valve cavity. The one-way valve element comprises a front guide body, a middle connecting body and a tail end. A two-stage guide body is arranged on the peripheral face of the middle connecting body, and an unload groove penetrating through the two-stage guide body in the axial direction of the one-way valve element is formed in the two-stage guide body. The end face, matched with the valve body, of the back cover is provided with a sealing groove, and a special-shaped sealing ring is arranged in the sealing groove. The tractor distributor has the advantages that the problems that the periphery of a front guide body of a valve element of an existing one-way valve is abraded, a sealing piece is pressed and damaged easily and sealing becomes invalid can be solved, the sealing effect of the back cover is good, and the tractor distributor cannot be contaminated by dust easily.
Owner:HEFEI CHANGYUAN HYDRAULICS
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products