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Multi-process mode intelligent switching method and system for vehicle-mounted sludge treatment
PendingCN121918449ARealize online generationhigh sensitivityProgramme control in sequence/logic controllersSensing dataSludge
The invention provides a multi-process-mode intelligent switching method and system for vehicle-mounted sludge treatment, and the method comprises the steps: carrying out the time-space alignment and standardization of multi-dimensional sensing data such as sludge characteristics, environmental parameters and equipment states, carrying out the real-time reasoning of a process switching critical value through combining with a lightweight incremental regression model, generating a self-adaptive threshold value band with a confidence interval, and carrying out the real-time reasoning of the process switching critical value. Dynamic monitoring and mode switching pre-judgment of actual operation parameters are realized; in the switching process, a weighted fusion progressive transition control strategy is adopted, the transfer rate is adaptively adjusted according to real-time feedback, the operation stability is guaranteed, and the intelligence, reliability and switching smoothness of process switching of the vehicle-mounted sludge treatment system are remarkably improved.
Owner:GUANGZHOU CHENGYUAN ENVIRONMENTAL PROTECTION EQUIP ENG CO LTD
Strong-acid-and-alkali-resistant plastic material for fume hood surface decoration and preparation method of strong-acid-and-alkali-resistant plastic material
The invention discloses a strong acid and alkali resistant plastic material for fume hood surface decoration and a preparation method of the strong acid and alkali resistant plastic material, belongs to the technical field of plastic material processing, and aims at solving the technical problem that in the prior art, the acid and alkali resistance and the bending modulus of a plastic material for fume hood surface decoration need to be further improved. The preparation method specifically comprises the following steps: stirring amino-modified fluorosilicone resin, paraformaldehyde and 1, 4-dioxane in a reaction kettle, dropwise adding an anacardol solution, heating the reaction kettle to 85-95 DEG C, carrying out heat preservation reaction for 6-8 hours, and carrying out post-treatment to obtain the anacardol-based benzoxazine resin. Perfluoro-modified polysiloxane benzoxazine is prepared, naphthalene-containing epoxy resin and imidazole-modified silicon carbide microspheres are compounded, in-situ catalysis synergistic curing is carried out by using filler interface imidazole, a compact organic-inorganic hybrid interpenetrating network is constructed, and the strong acid and alkali corrosion resistance and bending modulus of the material are remarkably improved.
Owner:ANHUI YIGUANG LAB EQUIP MFG CO LTD
Clamping device for thin-wall whole pipe fatigue test and test method
PendingCN121783684Aguarantee authenticityGuaranteed accuracyNuclear energy generationMaterial strength using repeated/pulsating forcesStress concentrationAdhesive belt
The invention provides a clamping device for a thin-wall whole pipe fatigue test and a test method, and belongs to the technical field of clamping devices. The device comprises clamping cushion blocks which are fixedly connected to two ends of a thin-wall whole tube sample main body and are used for transmitting test force; the high polymer material film adhesive tape is wound on a transition area of the clamping cushion block and the thin-wall whole pipe sample main body; the chock plugs are used for being plugged into the two ends of the thin-wall whole-tube sample main body, and packing paper is installed between the chock plugs and the inner wall of the thin-wall whole-tube sample main body and used for supporting the inner wall of the sample and evenly transmitting test force. The clamping cushion blocks are fixedly connected to the two ends of the sample and matched with the high polymer material film adhesive tape to reduce friction, the chock plugs are wound around the packing paper to support the inner wall, a stable clamping structure is formed, and it is ensured that fatigue fracture occurs in the working section. The problems of clamping stress concentration and fracture of a non-working section can be effectively avoided, the accuracy of a fatigue life evaluation result of the whole thin-wall pipe is improved, and the method can be widely applied to high-cycle and low-cycle fatigue performance tests under different conditions.
Owner:NCS TESTING TECHNOLOGY CO LTD
Anisotropic thermoelectric hydrogel and preparation method thereof
PendingCN121851416AHas shrinkage propertiesHas anisotropic shrinkage propertiesThermoelectric materialsHydrogel matrix
The invention provides anisotropic thermoelectric hydrogel, which is characterized in that hydrogel is used as a matrix, and a thermoelectric material is dispersed and fixed in the hydrogel matrix; the hydrogel matrix is formed by biocompatible macromolecules through a directional freezing method or a mechanical stretching method, and has an anisotropic internal microstructure oriented in a single direction. Through a directional freezing or mechanical stretching process, a microstructure oriented in a single direction is constructed in the thermoelectric hydrogel, so that the hydrogel has anisotropy of shrinkage characteristics. The two preparation methods disclosed by the invention are both based on physical crosslinking and orientation technologies, complex chemical modification or expensive equipment is not needed, and effective design of the shrinkage anisotropy of the material is realized by controlling freezing conditions (such as liquid level height and cooling direction) or stretching parameters (such as stretching ratio and cycle index); and mutual conversion between heat energy and electric energy can be realized through a thermoelectric material in the hydrogel network.
Owner:WUHAN UNIV OF TECH
High-temperature-resistant automobile radiator hose
ActiveCN224079812Uavoid stressImprove cooling effectFlexible pipesPipe protection against damage/wearMechanical engineeringHeat spreader
The utility model discloses a high-temperature-resistant automobile radiator hose which comprises a hose body and further comprises an anti-pressing assembly, a heat dissipation assembly and a heat dissipation assembly. The anti-pressing assembly comprises connecting plates, a connector, a sealing plate and a base plate, the connector is fixedly connected between the two connecting plates, the sealing plate is rotationally connected with the connecting plates, the base plate is fixedly connected with the connecting plates, and the sealing plate wraps the base plate in an initial state; according to the utility model, the hose can be effectively prevented from being pressed.
Owner:ANHUI DUBANG ELECTRICAL APPLIANCES CO LTD
Adjustable prestressed raft
The utility model requests protecting an adjustable pre -stress raft, its technical scheme main points have the connecting piece, set up in the pre -tightening device and the resistance device of connecting piece both ends, both ends pre -tightening device pre -tightening connecting piece, and cooperate resistance device restriction connecting piece shrink, connecting piece, pre -tightening device and resistance device all set up a plurality of, and cross setting form grid -like, this technical scheme has the beneficial effect: through pre -tightening device to connecting piece exert pre -stress, and utilize resistance device restriction connecting piece shrink, make raft to be able to according to construction process load change dynamic adjustment structure stress, effectively avoid uneven settlement and structure stress concentration.
Owner:HUADONG BUILDING CO LTD OF CHINA CONSTR FIFTH ENG BUREAU
Offshore storage device
PendingCN121986053Aemission reductionGood environmental compatibilityLife-savingTyre-inflating valvesToxic gasGas cylinder
The present invention relates to an offshore storage device for accommodating an inflatable liferaft, the inflatable liferaft comprising an internal volume containing a non-toxic gas, the internal volume having a controllable environment; an inflatable lifesaving device includes an interior volume, an uninflated inflatable lifesaving raft disposed in the interior volume, a gas cylinder disposed at least partially in the interior volume, the gas cylinder containing an inflation gas or a mixture of inflation gases for inflating the inflatable lifesaving raft, where a major portion of the inflation gas or the mixture of inflation gases is nitrogen or air, wherein the pressure indicator is operably connected with the gas cylinder to determine the pressure of the inflation gas in the gas cylinder.
Owner:VIKING LIFE SAVING EQUIP
Environment-friendly cleaning agent for degreasing metal surface
PendingCN122147339AAvoid meaningless diffusion lossesshorten the cleaning cycleDiethylene glycol monobutyl etherMetallic materials
The present application relates to the technical field of metal material chemical cleaning, and discloses an environment-friendly cleaning agent for degumming of a metal surface, comprising: tert-butyl hydrogen peroxide, diethylene glycol monobutyl ether, polyoxyethylene polyoxypropylene copolymer with a multi-branched structure, and deionized water, wherein the diethylene glycol monobutyl ether forms an associated structure with the tert-butyl hydrogen peroxide through hydrogen bonds; after the cleaning agent penetrates into the gap between the oxide film and the gum layer on the metal surface, the Lewis acid center of the oxide film competitively cuts the hydrogen bonds, induces in-situ decomposition of the tert-butyl hydrogen peroxide to release oxygen, and the interface pressure generated by the oxygen converts chemical energy into normal mechanical work, realizes whole peeling of the gum layer from the interface root, suppresses diffusion loss of the solvent in the gum layer body phase, and shortens the cleaning period without damaging the metal matrix.
Owner:SHANGHAI JIANAIRANG NEW MATERIAL TECHNOLOGY CO LTD
Display module and electronic device
ActiveCN115482743BAffect display effectImprove the display effectCooling/ventilation/heating modificationsIdentification meansMechanical engineeringPhysics
Embodiments of the present application provide a display module and an electronic device. The display module comprises: a display panel; a metal heat-conducting plate, the metal heat-conducting plate is bent to form a containing groove, and the display panel is arranged in the containing groove; a cover plate, the cover plate covers a slot opening of the containing groove; two opposite end portions of the metal heat-conducting plate form a first heat-conducting portion, and a middle portion of the metal heat-conducting plate forms a second heat-conducting portion; a flexible heat-conducting piece, the flexible heat-conducting piece is arranged between the second heat-conducting portion and the display panel, and an edge position of the first heat-conducting portion is connected to the cover plate. In this way, the display effect of the display panel can be avoided from being affected by the connection between the metal heat-conducting plate and the display panel, and on the other hand, the electric charge on the surface of the cover plate can be effectively led out to the metal heat-conducting plate, thereby reducing the risk of display defects such as green display of the display module.
Owner:BOE TECHNOLOGY GROUP CO LTD +1
Jacquard needle wire protection structure
PendingCN122504011Apermeablecontrol flow range
The application provides a jacquard needle wire protection structure, and relates to the field of jacquard needles.The jacquard needle body is characterized in that a plurality of FCC wires are connected to one side of the jacquard needle body, a protective net is arranged on the FCC wires, silica gel is filled between the FCC wires and the protective net, a tail wire clamp is arranged on the jacquard needle body, the tail wire clamp covers the protective net, silica gel is filled between the protective net and the tail wire clamp, a rolling belt is connected between the tail wire clamp and the protective net, and a pair of nuts are connected between the jacquard needle body and the tail wire clamp.The application has the following advantages: the structure forms a relatively closed and elastic stress isolation area at the ceramic piece end of the wire, effectively blocks the transmission of external equipment vibration to the wire, avoids internal stress concentration and fatigue fracture of the FCC wire due to resonance, and significantly improves the reliability and service life of the wire in a high-voltage (DC 200V) working environment.
Owner:HUNAN JINGWEIHENG TECHNOLOGY CO LTD
A filling crane structure for an LNG carrier
This utility model belongs to the technical field of LNG carrier bunkering equipment, and provides a bunkering crane structure for LNG carriers, including: a telescopic boom structure, which includes an inner boom and an outer boom that can slide relative to each other; a front-end connecting component, disposed at the end of the telescopic boom structure; a hose descent device, disposed at the front-end connecting component; and a multi-winch linkage control system, including at least three independently controlled winches. Compared with the prior art, this utility model, by setting a telescopic boom structure including an inner boom and an outer boom, can dynamically adjust the overall length of the bunkering crane, effectively absorbing the relative displacement of the ship under the action of waves; the front-end connecting component realizes reliable docking between the bunkering hose and the interface of the receiving ship, ensuring a sealed and stable delivery path; the hose descent device can limit the descent speed of the bunkering hose in emergency detachment or severe undulation conditions; and the multi-winch linkage control system realizes real-time compensation for the three-dimensional motion of the receiving ship through coordinated control of rotation, amplitude change, and attitude.
Owner:NINGBO KAIRONG NEW ENERGY CO LTD
Flash management circuit and method and embedded device
PendingCN121858478AImprove reliabilityImprove development efficiencyHardware monitoringSoftware deploymentComputer hardwareEngineering
Owner:NEW H3C TECH CO LTD
Aluminum alloy hull welding deformation control mechanism
The utility model discloses a kind of aluminum alloy ship body welding deformation control mechanisms, including multiple webs, web is welded at the welding gap of first ship plate and second ship plate, web is vertically arranged with the surface of first ship plate and second ship plate, the length direction of web is perpendicular to the welding gap of first ship plate and second ship plate, web bottom is provided with the bottom edge of widening to both sides, and welding groove is spaced along bottom edge;Welding groove is distributed at the contact of bottom edge and ship plate, the cross section of welding groove is arc, the bottom end of welding groove and ship plate smooth transition tangent contact;Connecting fixing mechanism is equipped between adjacent webs;By web auxiliary material positioning welding, increase auxiliary material in the relatively sparse area of original structure, by positioning welding mode welding, keep the structure of original strong force component unchanged, auxiliary increase the overall stress of sparse and weak area, welding is more stable and reliable, not easy to weld deformation.
Owner:GANSU CHINA POWER CONSTRUCTION PORT SHIP ENGINEERING CO LTD
Crimping type IGBT (Insulated Gate Bipolar Translator) assembly
PendingCN121966197AAvoid thermal breakdownavoid stressPower conversion systemsElectrical resistance and conductanceThermodynamics
The invention relates to the technical field of IGBTs (Insulated Gate Bipolar Translator), in particular to a crimping type IGBT assembly, which comprises a first IGBT module, a second IGBT module and a third IGBT module, the second IGBT module is arranged at the top of the third IGBT module; the first IGBT module is arranged at the top of the second IGBT module; the crimping type IGBT assembly further comprises a first upper horizontal row, a first lower horizontal row and a first vertical row. The crimping type IGBT assembly further comprises a second upper horizontal row, a second lower horizontal row and a second vertical row. By optimizing the IGBT module stacking layout and the copper bar connecting structure, the total distance of current transmission paths from the input interface to the collector electrode of each IGBT module and from the output interface to the emitter electrode of each IGBT module is completely consistent, and the balance of parasitic resistance and parasitic inductance of each branch is ensured; therefore, the problem of current unbalance caused by path difference in an existing parallel structure is effectively solved, the current sharing coefficient is stabilized at a high level, and thermal breakdown or electric stress damage caused by long-term overload of a single IGBT module is avoided.
Owner:HUNAN FUDE ELECTRICAL +2
A nanocluster with golgi targeting and a preparation method and application thereof
PendingCN122624665ARealize local high concentration gas interventionReduce off-target toxicityGolgi componentLysosome
The application discloses a kind of nanoclusters with golgi targeting and its preparation method and application, the nanocluster is zinc sulfide nanocluster, the surface of the zinc sulfide nanocluster is coupled with targeting ligand, the targeting ligand can actively target RA synovial activated macrophage, and can target golgi subcellular organelle, the nanocluster can release H2S gas in inflammatory weak acid microenvironment.The application can realize "inflammatory joint enrichment-> macrophage active uptake-> lysosome escape-> golgi deep anchoring" multi-level precise delivery, release H2S gas in inflammatory weak acid microenvironment, fundamentally reshape intracellular Ca 2+ Steady state, relieve endoplasmic reticulum, golgi and mitochondria triple stress, block inflammatory signal pathway, realize the efficient, safe treatment of RA.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA
High-precision special-shaped copper strip forging and pressing forming die
ActiveCN224273140UGuaranteed accuracyavoid stressForging/hammering/pressing machinesStress concentrationMechanical engineering
The utility model relates to the technical field of dies, and particularly discloses a high-precision special-shaped copper strip forging forming die which comprises an upper die, a lower die is placed above the upper die, isolation pads are arranged at the two ends of the upper die and the two ends of the lower die, and positioning grooves are formed in the faces, corresponding to the isolation pads, of the upper die and the lower die. A positioning block is fixedly mounted on the outer portion of each isolation pad, each fixing mechanism comprises a built-in groove, a guide groove, a sliding block, a moving groove and a handle, and before the upper mold and the lower mold are mounted, the positioning blocks on the outer portions of the isolation pads are inserted into the positioning grooves; at the moment, the handle is moved to drive the sliding block to move towards the outside of the guide groove until the sliding block is clamped in the built-in groove, the handle cannot move at the moment, the isolation pad is installed at the moment, the isolation pad avoids local stress concentration and surface damage caused by direct contact of the mold and the pressing block screw rod, and therefore the flatness of the surface of the mold is guaranteed; and the overall precision of the mold is guaranteed.
Owner:JIANGXI YUNUO ELECTRONIC MATERIALS CO LTD
Preparation method of sandwich type all-solid-state inorganic electrochromic glass
PendingCN122085571ASynergistic improvement of comprehensive performancebarrier migrationNon-linear opticsIonic diffusionAll solid state
The invention relates to the technical field of electrochromic materials and glass preparation, in particular to a preparation method of sandwich type all-solid-state inorganic electrochromic glass which is formed by sequentially compounding a tempered glass layer, a film layer and an electrochromic film layer pile. The thickness of the tempered glass layer is 4 mm, and the film layer is a PVB film and is 0.76 mm thick. The electrochromic film layer stack takes sodium-calcium non-tempered glass with the thickness of 3mm as a substrate, and an anti-ion diffusion layer, a first conductive layer, a first resistive layer, a negative electrode color changing layer, a second resistive layer, a positive electrode color changing layer, a third resistive layer, a second conductive layer and an outermost protective layer are sequentially arranged on the surface of the substrate from inside to outside; the anti-ion diffusion layer is a silicon dioxide layer, and the thickness is 200 nm. According to the preparation method of the sandwich type all-solid-state inorganic electrochromic glass provided by the invention, through precise design of each film layer structure of the glass and gradient optimization of a preparation process, the comprehensive performance of a product is synergistically improved, and many problems in the prior art are effectively solved.
Owner:HEFEI XIUQIANG INTELLIGENT TECHNOLOGY CO LTD
An integrated multifunctional intubation device with flushing, drainage and drug delivery functions
This utility model discloses an integrated multifunctional intubation device with flushing, drainage, and drug administration functions. The device includes an intubation tube, a three-way drug administration flushing and drainage device, a connecting tube, and an anti-backflow negative pressure drainage ball. The inner surface of the intubation tube has supporting teeth to prevent compression closure. One end is a connecting section, and the working section's tail end is fish-mouth shaped with staggered flushing holes on its smooth surface. The outer circumference of the intubation tube has an "I"-shaped fixing ring. The three-way valve is connected to the anti-backflow negative pressure drainage ball through the connecting tube, allowing liquid in the intubation tube to flow into the drainage ball, preventing backflow and allowing liquid to flow out through the drain hole. The connections between the connecting tube, the intubation tube, and the three-way valve are all threaded and tightened. This device integrates multiple functions, has a reasonable structural design, and can effectively realize flushing, drainage, and drug administration operations, while also preventing blockage of the intubation tube due to compression and dislodgement due to external force.
Owner:FIRST PEOPLES HOSPITAL OF YUNNAN PROVINCE
A cable chain forging equipment
ActiveCN120362390BStable and suitable temperature environmentguaranteed temperaturePower hammersForging/hammering/pressing machinesHeat flowAir pump
This invention discloses a cable chain forging device, belonging to the field of hardware forging technology. It includes a base, with an auxiliary mechanism featuring a processing table mounted on the top of the base. The processing table is fixedly mounted on the top of the base. A flow-dispersing mechanism with a ring frame is located near the top of the base and the ring frame is rotatably mounted on the top of the processing table. A long plate is connected to the surface of the ring frame near the processing table, and multiple air nozzles for blowing and dispersing air onto the cable chain are connected to the surface of the long plate near the processing table. This invention uses a heating box and an air pump to deliver heat to the ring frame and blows air onto the cable chain on the processing table through the air nozzles on the long plate, providing a stable and suitable temperature environment for the cable chain. It can also more accurately maintain the temperature of the cable chain during the forging process, avoiding changes in material properties due to temperature fluctuations, thereby effectively ensuring the quality and precision of the cable chain forging and improving the mechanical properties and stability of the finished cable chain.
Owner:AOFENG TOWLINE TECH (JIANGSU) CO LTD
A flat tail docking device
The present application belongs to the technical field of aircraft manufacturing, and discloses a flat tail butt joint device. The device comprises a sliding seat and a sliding table. The sliding seat is placed on the ground, and the sliding table moves linearly on the sliding seat. The sliding table is provided with a first hinged seat, a second hinged seat and a third hinged seat. The first hinged seat is provided with a first hinged ball, the second hinged seat is provided with a second hinged ball, and the third hinged seat is provided with a third hinged ball. The first hinged ball, the second hinged ball and the third hinged ball are hinged to a frame, and the frame is provided with a flat tail. The device solves the problems of the prior art, such as large space occupation, high cost and stress on the flat tail.
Owner:SHANGHAI AIRCRAFT MFG
An ear-hanging wired earphone
The utility model relates to audio equipment technical field discloses a hanging ear formula wired earphone, including two earphone shell, the earphone shell inner wall fixedly connected with electronic component, the inside fixedly connected with earphone line of electronic component, the earphone shell outer wall has been seted up with the sliding slot, the sliding slot inside slidingly connected with the sliding block, the one end fixedly connected with the round ring of sliding block, the other end fixedly connected with silica gel ear hang of sliding block, the outside surface fixed mounting of earphone shell front side is used for the outer cover of the earphone internal component shielding, the outer cover inner wall fixedly connected with fixed column, in the utility model, ear hang rotates through on fixed column, and the sliding block slides in the sliding slot, can adjust ear hang position flexibly, and the baffle can limit the maximum adjustment angle, and this design adapts to different auricles, and the silica gel ear hang is close to the skin and flexible, avoids the oppression and the problem of slipping, adapts to adult and small auricle crowd, covers the commuting and fitness scene, will not easily fall off.
Owner:GUANGZHOU JIAPING TECHNOLOGY CO LTD
Method for preparing nickel-diamond composite electroformed wafer dicing blade
The application discloses a preparation method of a nickel-diamond composite electroformed wafer slicing cutter, and relates to the technical field of semiconductor wafer cutting tool manufacturing; the application adopts a three-stage temperature control and gradient current synergic regulation process, divides the electroforming into three stages of priming, composite deposition and post-treatment heat preservation, forms a temperature gradient and a current density gradient, and the parameter transition rate is 1-2 DEG C / min; the application is matched with three-step pretreatment of an aluminum-magnesium alloy, ultrasonic and mechanical alternating synergic stirring and an electroforming liquid formula containing a composite dispersant and an inhibitor. The application makes the diamond embedding rate reach more than 80%, the internal stress of the plating layer is lower than 144 MPa, the smoothness is equal to or less than 0.1 microns, the waste product rate is reduced to less than 20%, the service life of the slicing cutter is prolonged by more than 30%, no new equipment is needed, the production cost is low, and the industrial application value is high.
Owner:CHENGDU XIHUA TECH CO LTD
Zero pressure suit pattern structure
The utility model discloses a zero pressure suit version structure belongs to clothing version structure technical field, including front piece, back piece, side piece, sleeve and chest lining, the chest lining is connected on the front piece, the chest lining top is provided with the shoulder pad modeling part, the back piece with front piece, side piece, sleeve sewing connection place all is provided with the gathering area for making scapular region of back piece form three -dimensional volume, back piece with front piece connection place forms shoulder oblique, the angle of shoulder oblique is located 21~23, the utility model breaks through the pain point of traditional suit multiple position compression, around ergonomics, with realizing basic zero pressure body feeling as the core, considers the feeling of each easily oppressed part of human body when wearing suit, improves the wearing comfort degree.
Owner:HUNAN SHENGDEXI FASHION TECH CO LTD
A lens processing fixing device
ActiveCN224738147URealize automatic centeringreduce eccentricity
The utility model discloses a lens processing fixing device, including the bottom plate, the bottom plate is fixedly connected with the support, the support rotationally connected with the rotation cover, the rotation cover is fixedly connected with the support block, the support block rotationally connected with two rotators, the support is fixedly connected with the motor, the output shaft of motor is fixedly connected with the gear no.
Owner:长春市晟玺光电科技有限公司
A reaction system and method for the precipitation polymerization of α-olefins with maleic anhydride
ActiveCN117619287Bstable temperature controlGuarantee the quality of reaction productsChemical/physical/physico-chemical stationary reactorsThermodynamicsAlkene
This invention belongs to the field of polymerization reactions and discloses a reaction system and method for the precipitation polymerization of α-olefins with maleic anhydride. The system includes a reaction circulation subsystem and an external circulation temperature control subsystem. The reaction circulation subsystem includes a reaction vessel, a reactor, a reaction circulation pump, and a mixing connection device. The reaction vessel includes a vessel body, a jacket, a stirring device, and a first non-condensable gas outlet. The reactor includes a reaction liquid chamber, an external circulation liquid chamber, and a second non-condensable gas outlet. The external circulation liquid chamber is arranged around the outside of the reaction liquid chamber and is not connected to it. The external circulation temperature control subsystem includes an external circulation buffer tank, an external circulation pump, an external circulation heater, and an external circulation cooler. This invention, through a segmented reaction system, separates the heating and cooling functions of the reaction vessel, meeting the heating and cooling requirements of the precipitation polymerization of α-olefins with maleic anhydride in different solvent systems at different reaction stages.
Owner:SINOPEC ENGINEERING INCORPORATION +1
A mirror fixing device for optical measurement
This invention relates to the field of optical measurement equipment technology, specifically disclosing a mirror fixing device for optical measurement, comprising: a base, wherein a support rod is slidably connected to the base, and a fixing frame is fixedly connected to the support rod; a rotating shaft, rotatably connected to the fixing frame, a connecting frame being fixedly connected to the rotating shaft, and two support shafts being rotatably connected to the connecting frame, with a fixing shell fixedly connected between the two support shafts; two fixing columns, each fixedly connected to both sides of the fixing frame, each fixing column being slidably connected to a sliding rod, and a guide ring being fixedly connected between the two sliding rods; and a connecting shell, fixedly connected to one side of the fixing shell, with a ball-end rod slidably connected to the connecting shell. This invention eliminates the need for easily fatigued springs, employing a fully mechanical threaded sleeve and worm gear transmission mechanism to achieve angle and direction adjustment. This mechanical structure eliminates the problem of elasticity attenuation and has strong resistance to vibration interference.
Owner:开封市产品质量检验检测中心
A low-carbon low-alloy welding wire and a method for preparing and welding the same
ActiveCN119368968Bimprove matchImprove mechanical propertiesArc welding apparatusWelding/cutting media/materialsUltimate tensile strengthMechanical property
The present application relates to a kind of low-carbon low-alloy welding wire and its preparation and welding method, belong to welding material technical field, solve the existing welding wire for high-strength material welding when easily produce hot crack, pore, coarse grain and other defects and weld metal's strength and low temperature toughness is insufficient, with the problems such as poor performance matching of base material.The present application provides a kind of low-carbon low-alloy welding wire, the component in the welding wire is as follows according to mass percentage: C 0.04~0.08%, Si 0.30~0.50%, Mn 1.6~2.0%, Cr 0.15~0.35%, Ni 3.5~4.0%, Cu 0.008~0.01%, Mo 0.007~0.01%, V 0.0005~0.001%, Ti 0.02~0.07%, Al 0.01~0.018%.The welding wire is designed by component, significantly improve the mechanical properties and low temperature toughness of welded joint, especially suitable for the welding of P690QL2 steel;Combined with the welding method of use, welding performance is better.
Owner:CHINA IRON & STEEL RESEARCH INSTITUTE GROUP CO LTD
A durable corrugated box compression testing device
The utility model discloses a kind of durable corrugated box compression testing device, including bottom plate, the top side of bottom plate is equipped with long slot, long slot is cross-shaped, fixedly installed with placing plate in long slot, through the collaborative design of driving assembly, transmission assembly and clamping assembly, effectively solve the carton side fixed problem, motor as driving source, drive first bidirectional screw rod rotation, through the multistage transmission of first synchronous wheel, synchronous belt, second synchronous wheel, transmission rod, first bevel gear and second bevel gear, make first bidirectional screw rod and second bidirectional screw rod reverse rotation, since the thread rotation direction of two screw rods is opposite, the slider of its outside drives fixed rod and clamping plate synchronous to carton four sides and adhere, after clamping plate and carton side contact, limit the displacement of carton when testing, inclination, ensure that vertical pressure evenly conducts to carton surface, avoid the test force value deviation caused by side no constraint, improve the accuracy and reliability of test data.
Owner:ZHEJIANG LONGXIANG PACKING CO LTD
A negative pressure integrated vacuum forming machine and method
This invention relates to the field of vacuum forming machine technology, and proposes a negative pressure integrated vacuum forming machine and method. The machine includes a support platform, a mounting frame fixedly connected to the top of the support platform, a material feeding frame on the inner side of the mounting frame, a lifting mechanism on the inner side of the mounting frame, an infrared heater fixedly connected to the top of the inner side of the mounting frame, and a vacuum forming mechanism below the material feeding frame. The vacuum forming mechanism includes a mold, with an air cavity at the bottom of the inner side of the mold. A three-way pipe communicating with the interior of the air cavity is fixedly connected to the bottom of the mold. One end of the three-way pipe is fixedly connected to an air outlet pipe, and the other end is fixedly connected to an air inlet pipe. A dual-axis motor is fixedly installed inside the support platform. An air extraction component is provided at the outlet end of the air outlet pipe, and an air inlet component is provided at the inlet end of the air inlet pipe. This invention effectively solves the technical defects of traditional vacuum forming machines through uniform negative pressure adsorption in the air cavity, rapid cooling in the annular cavity, non-destructive positive pressure demolding, and integrated power transmission.
Owner:GUANGZHOU MINXING PACKAGING TECH CO LTD
An intelligent circuit breaker closing and opening driving mechanism and intelligent circuit breaker
ActiveCN224400340Ureduce in quantityOptimize space layoutContact driving mechanismsSwitching device condition indicationReduction driveGear wheel
The utility model discloses a kind of intelligent circuit breaker combination brake drive mechanism and intelligent circuit breaker, intelligent circuit breaker combination brake drive mechanism includes the casing of operating mechanism installation, and drive source piece and reduction drive assembly are transmissionally connected and installed in casing, further include transmission gear and push rod;Transmission gear is engaged with reduction drive assembly, and part gear one is fixed with on the back of transmission gear coaxially;The push rod is rotatably installed on casing and can be driven operating mechanism by connecting rod brake, and its upper portion extends to casing outside, and its lower portion is fixedly provided with part gear two, part gear two and part gear one tooth profile match, and realize unidirectional intermittent meshing transmission when transmission gear forward rotation;Intelligent circuit breaker includes above-mentioned intelligent circuit breaker combination brake drive mechanism.The utility model has compact structure, reliability is greatly promoted, operation safety is high, manual operation convenience is good, state perception precision and control intelligentization and the like advantages.
Owner:GUIZHOU TAIYONG CHANGZHENG TECH CO LTD