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44results about How to "Ensure long-term stability" patented technology

Environment-friendly total-synthesis concentrated solution for hydraulic support and preparation method of concentrated solution

PendingCN121950398AOvercoming deactivation challengesExcellent friendly featuresLubricant compositionBuffering agentCoal
The invention belongs to the technical field of coal mine machinery lubrication and hydraulic transmission, and discloses an environment-friendly total-synthesis concentrated solution for a hydraulic support and a preparation method of the concentrated solution. The biological sensing microcapsule corrosion inhibitor is characterized by comprising 0.5%-3.0% of a biological sensing microcapsule, 8.0%-15.0% of a main corrosion inhibitor, 2.0%-6.0% of an auxiliary corrosion inhibitor, 4.0%-10.0% of a water-soluble lubricant, 0.05%-0.2% of an anti-foaming agent, 1.0%-3.0% of a pH buffering agent and deionized water. Wherein the biological sensing microcapsule has a core-shell-shell structure, is integrated with electroactive microorganisms, an electron mediator carrier and a corrosion inhibition precursor release layer, and can trigger targeted release of benzotriazole derivatives when the pH value of a local corrosion microarea is less than or equal to 5.5. The corrosion inhibitor has excellent corrosion protection performance and environment-friendly characteristics, effectively overcomes the problem of inactivation of microorganisms under severe hydraulic working conditions through a microcapsule encapsulation strategy, realizes accurate matching of corrosion signal in-situ sensing and corrosion inhibition response, remarkably improves the anti-rust performance under high-shear and wide-temperature-range working conditions, and has wide application prospects. And meanwhile, the requirements of environmental protection and sealing material compatibility are met.
Owner:INNER MONGOLIA SAIKEBOKE MINING TECH CO LTD

Temperature adjusting system of compressed air energy storage chamber

The utility model provides a temperature regulating system of a compressed air energy storage chamber, which comprises an artificial chamber horizontally arranged underground, a vertical shaft arranged at the top of the artificial chamber, an air circulating pipeline and a water pipeline, the air circulating pipeline and the water pipeline are arranged in the artificial chamber, and an air inlet and an air outlet at two ends of the air circulating pipeline are oppositely arranged along two sides of the artificial chamber respectively. An axial flow fan is arranged in an air inlet of the air circulating pipeline, the water pipeline comprises a water inlet pipeline and a water outlet pipeline, the water inlet pipeline is communicated with a water outlet of the warm water tank and an in-plant circulating cooling water inlet, the water outlet pipeline is communicated with a water inlet of the cold water tank and an in-plant circulating cooling water return port, and a spiral heat exchange pipe is arranged between the water inlet pipeline and the water outlet pipeline. The spiral heat exchange pipe is embedded in the air circulation pipeline behind the axial flow fan and used for exchanging heat with air in the chamber, adjusting the temperature of the air in the artificial chamber during inflation energy storage and deflation energy release, guaranteeing the structural safety of surrounding rock around the artificial chamber and prolonging the service life of sealing materials in the chamber.
Owner:SHENGNENG ENERGY (ZHEJIANG) CO LTD

Connecting structure of PCCP (prestressed concrete cylinder pipe)

The utility model discloses a PCCP (prestressed concrete cylinder pipe) connecting structure which comprises pipe bodies, the two ends of each pipe body are respectively provided with an inserting part and a socket part, the inserting parts and the socket parts on the two pipe bodies which correspond to each other end to end are inserted and correspond to each other, sealing rings are arranged on the outer sides of the inserting parts, and sealing rings are arranged on the outer sides of the socket parts. Fixing parts and pressing parts corresponding to the fixing parts are arranged at the two ends of each pipe body respectively, the number of the pressing parts is multiple, and the pressing parts are detachably connected with the fixing parts on the adjacent pipe bodies. The pipeline connecting structure has the beneficial effects that the fixing pieces and the pressing pieces at the two ends of the pipe body are combined, the multiple pressing pieces enable two sections of pipelines to be stably connected in a detachable connection mode, pressure can be gradually applied in the later use process, and the tightness and long-term sealing of pipeline connection are guaranteed.
Owner:GUANGXI QIXING PIPE CO LTD

Wind pressure resistant structure of a broken bridge aluminum door and window

The utility model discloses a kind of wind pressure resistance reinforcing structure of broken bridge aluminum door and window, belong to aluminum door and window reinforcing technical field, the inside of first frame body is equipped with protruding frame, the corner of protruding frame is equipped with first limit strip, first limit groove for clamping is formed between multiple first limit strips, the middle section of protruding frame is equipped with abutting arc part, and inner groove is formed in the inside of abutting arc part;The inside of second frame body is equipped with inner boss, and the corner of inner boss is equipped with second limit strip. By first, second limit groove clamping cooperation, and the reinforcing rib structure of oblique support strip, insertion strip and abutting strip composition, improve broken bridge aluminum door and window wind pressure resistance performance, make it keep stable under severe weather. First, second frame body and its related components integrated design, reinforcing structural stability, reduce security risk. Abutting arc part and opening cover and other components design, stable structure, ensure that door and window long-term stable durable, prolong service life.
Owner:JINING MINGKUN TIANHENG DOORS & WINDOW MANUFACTURING CO LTD

Wear-resistant rubber roller for printing machine

The utility model provides a wear-resistant rubber covered roller for a printing machine, relates to the technical field of rubber covered rollers for printing machines, and solves the problems that printing parts outside the rubber covered roller can be replaced in order to ensure the printing quality, but the printing parts of a common rubber covered roller are difficult to replace. In the prior art, the rubber roller generally does not have a good stable structure to assist the connection stability between the rubber roller and a printing part, so that the printing quality is influenced due to looseness between the printing part and the rubber roller. A wear-resistant rubber roller for a printing machine comprises a connecting shaft, a rubber roller and a rubber roller body, fixed side seats are symmetrically and fixedly mounted at the two ends of the connecting shaft; after the connecting sleeve is replaced, an operator only needs to rotate the knob to drive the limiting screw rod to rotate and push the limiting sliding block to move until the limiting teeth at the bottom of the limiting screw rod are completely clamped with the limiting teeth on the limiting block of the rubber roller main shaft, so that the fixed side seat is effectively prevented from loosening due to vibration or external force, and the long-term stability of the connecting sleeve is ensured.
Owner:JIANGSU YONGHUI RUBBER CO LTD

Polymer electrolyte for lithium metal battery and preparation method and application thereof

The application discloses a polymer electrolyte for a lithium metal battery and a preparation method and application thereof, and relates to the technical field of battery electrolyte materials. + The desolvation energy barrier at the electrode interface is reduced, the ionic conductivity of the electrolyte is significantly enhanced, and the lithium ion can be guided to form a stable solid electrolyte interface film in cooperation with the lithium ion, so that the uniform lithium ion flow is achieved, the uncontrollable growth of lithium dendrites is significantly inhibited, the side reaction consumption of the electrolyte in the cycle process is greatly reduced, and the long-period stability of the battery is effectively ensured, and the application is suitable for large-scale popularization and application in lithium metal batteries.
Owner:CHENGDU UNIVERSITY OF TECHNOLOGY

Optical crosstalk prevention structure of double-layer light guide plate and preparation method of optical crosstalk prevention structure

PendingCN122085440ASuppress macro crosstalkSuppress crosslightOptical light guidesRoofsLight guideIn vehicle
The invention provides an anti-optical crosstalk structure of a double-layer light guide plate and a preparation method of the anti-optical crosstalk structure. The structure comprises an upper-layer light guide plate and a lower-layer light guide plate which are oppositely arranged in parallel, and an air layer is formed between the two light guide plates; the SiO2 plating layer is arranged on the lower surface of the upper-layer light guide plate and / or the upper surface of the lower-layer light guide plate; the side edge light blocking structure is arranged on the light incident side edge of the upper-layer light guide plate and / or the lower-layer light guide plate. Interface transmission optical crosstalk caused by Fresnel reflection is inhibited through the SiO2 plating layer, small-angle light at the edge of a light source is intercepted through the side light blocking structure, and optical crosstalk is inhibited from two dimensions through the synergistic effect of the SiO2 plating layer and the side light blocking structure; meanwhile, square OCA glue is adopted to be attached to non-display areas on the peripheries of the two layers of light guide plates, transparent supporting microbeads are evenly distributed on the edges of the inner sides of the non-display areas, and it is guaranteed that the thickness of an air layer is even and stable. The vehicle-mounted optical crosstalk preventing device is compact in structure and good in optical crosstalk preventing effect, the lighting optical crosstalk rate of the upper layer can be reduced to 3.2%, the lighting optical crosstalk rate of the lower layer can be reduced to 1.8%, and the use requirement of the vehicle-mounted harsh environment is met.
Owner:NINGBO WEINAI OPTICAL TECHNOLOGY CO LTD

A high-power battery tab welding reinforcement structure

The utility model discloses a kind of high-power battery tab welding reinforcement structures, belong to battery manufacturing technical field.The structure includes the reinforcing assembly of elastic tooth engagement reinforcement to tab and busbar welding place, and the fixed component for locking the reinforcing assembly.The reinforcing assembly is engaged by the tooth-shaped block in inside and the tooth-shaped groove on welding piece, and utilizes spring to exert elastic pressure;Fixed component is stabilized locking by clamping rod mechanism.The utility model solves the problem of insufficient welding point connection strength, easy to loosen and fall off in prior art by double reinforcement mode, significantly improves the mechanical strength and reliability of connection.
Owner:KIJO POWER (XINYU) CO LTD

Venetian blind capable of adjusting installation width

ActiveCN224187460UEnsure long-term stabilityensure safetyLight protection screensVenetian blindsLouver
The utility model discloses a venetian blind capable of adjusting the installation width, and relates to the field of venetian blinds, in particular to a venetian blind capable of adjusting the installation width, which comprises a cross beam and a plurality of venetian blinds, the cross beam comprises a connecting pipe and two fixing plates, and telescopic pipes are arranged on the sides, facing the connecting pipe, of the fixing plates. The utility model solves the problems that the existing venetian blind generally adopts a cross beam structure with a fixed width, the installation width cannot be adjusted, so that the venetian blind needs to be customized according to the size of a window during installation, the windows with different sizes need venetian blinds with different specifications, the production and inventory cost is increased, and the production efficiency is increased. The problems that if the size of a window is not standard or the installation environment is replaced subsequently, an original shutter blind cannot be matched and needs to be purchased again, resource waste is caused, part of the shutter blinds with the adjustable width adopt simple telescopic rod structures, but a reliable locking mechanism is lacked, the shutter blinds are prone to loosening in the using process, and the stability and the service life are affected are solved.
Owner:BEIJING HANS-ROCK BUILDING MATERIALS CO LTD

Curtain wall light-emitting character mounting structure

The utility model relates to the technical field of mounting structures, in particular to a curtain wall luminous character mounting structure, which comprises a plurality of fixing steel plates arranged in mounting grooves reserved in curtain wall upright posts and slidably mounted along the inner grooves, and the fixing steel plates are respectively positioned in the mounting grooves of different curtain wall upright posts; the positioning mechanism is arranged in a preformed hole of the curtain wall stand column, and the positioning mechanism is used for limiting the sliding track of the fixed steel plate and the curtain wall stand column; the curtain wall light-emitting characters are fixedly installed on the multiple fixing steel plates, and the curtain wall light-emitting characters and the curtain wall stand columns are located at the two ends of the curtain wall structure respectively; the reinforcing mechanisms are installed on the building structure, the fixing steel plates are installed on the reinforcing mechanisms, and the reinforcing mechanisms and the fixing steel plates are arranged in a one-to-one correspondence mode; the adaptability is high, and the structural strength is high.
Owner:ZHONGTIE ELECTRIZATION BUREAU GRP BEIJING CONSTR ENG

Fabricated H-shaped steel column connecting structure applied to foundation pit engineering

The utility model discloses an assembly type H-shaped steel column connecting structure applied to foundation pit engineering, which comprises a connecting mechanism arranged between two H-shaped steel main bodies, each H-shaped steel main body consists of two flanges and a web plate, the connecting mechanism comprises two rectangular plates and two U-shaped plates, the two rectangular plates are respectively positioned on the outer sides of the two flanges on the same side, and the two U-shaped plates are respectively positioned on the outer sides of the two flanges on the same side. The two U-shaped plates are located on the outer sides of the two web plates correspondingly, a plurality of mounting grooves are formed in the rectangular plate, driving rods are mounted on the inner sides of the mounting grooves in the rectangular plate, and threaded rods are fixed to one ends of the driving rods. Balanced supporting and stable positioning can be provided for connection through the rectangular plate and the U-shaped plate, so that the stability and durability of the whole structure are enhanced, in addition, the driving rod and the threaded rod are arranged on the inner side, the loosening situation possibly occurring when the driving rod and the threaded rod make contact with an underground soil layer is effectively prevented, and the reliability and long-term stability of connection are guaranteed.
Owner:RUIMA-MARUKEN (ANHUI) CONSTRUCTION PROTECTING TECHNOLOGY CO LTD

A real-time tracking and positioning device for goods in a supply chain transportation network

ActiveCN224667964UImprove sealingImprove anti-loosening performance
The utility model provides a kind of supply chain transport network goods real-time tracking positioning equipment, belong to positioning equipment technical field, including protection mechanism, including lower shell, the upper shell of being set to the top of lower shell and the positioner of being fixedly installed in lower shell interior;Protection mechanism includes the sealing component for increasing the sealing between lower shell and upper shell, and the anti-loosening component for preventing the looseness between lower shell and upper shell, the top of lower shell is fixedly installed with outer thread barrel, the bottom of upper shell is equipped with the internal thread groove of cooperation outer thread barrel use.The utility model is cooperated between sealing component and anti-loosening component, improves the sealing and anti-loosening performance between lower shell and upper shell, solves the problem that the performance of internal equipment is influenced due to the insufficient sealing and unstable connection of traditional shell positioner, ensures the reliability and long-term stability of positioner in complex use environment.
Owner:TIANJIN XINGHUI TECHNOLOGY DEVELOPMENT CO LTD

A heat treatment and setting device for polyester fiber yarn

ActiveCN224280578Ustress thoroughlyThorough stress reliefFilament manufactureArtificial filament heat treatmentYarnPolyester
This utility model discloses a heat treatment and shaping device for polyester fiber yarn, including a drying box. A fixed frame is fixedly installed inside the drying box, and a placement plate is provided above the fixed frame. The placement plate is slidably connected to the fixed frame via a slider. A first sliding rod is fixedly installed inside the fixed frame, and the slider is slidably sleeved with the first sliding rod. A first cam is rotatably installed on the fixed frame. An installation frame is fixedly installed inside the drying box, and a movable frame is slidably installed on the installation frame. A carding frame is rotatably installed on the movable frame. Through the synergistic action of the placement plate, slider, first sliding rod, first cam, and first spring, the placement plate and the fiber yarn it carries are driven to generate controllable reciprocating vibration or oscillation inside the drying box. This dynamic treatment method effectively breaks the static structure of multi-layer stacked fiber yarn and significantly promotes the penetration and circulation of the heat medium inside the fiber layer and between different layers.
Owner:SUZHOU JINHUI PLASTIC CO LTD

Device and method for automatically controlling quality of indirect cooling circulating water

The invention belongs to the technical field of power plant indirect cooling circulating water treatment, and relates to an automatic control device and method for the quality of indirect cooling circulating water. Comprising an intelligent control cabinet, an alkali solution tank, an acid solution tank, a mixed ion exchanger, a condenser and an indirect cooling tower aluminum heat exchanger, a conductivity meter, a pH meter and a PLC (Programmable Logic Controller) are arranged in the intelligent control cabinet; the alkali solution tank is connected with a circulating water inlet pipeline; the acid solution tank is connected with a circulating water inlet pipeline; a pH electrode is arranged on the circulating water inlet pipeline; a conductivity electrode is arranged on the circulating water outlet pipeline; the condenser inlet is connected with the circulating water outlet pipeline; the condenser outlet is connected with the circulating water inlet pipeline; the circulating water outlet pipeline is connected with an inlet of the mixed ion exchanger; an outlet of the mixed ion exchanger is connected with an inlet of the condenser. According to the invention, accurate control of the water quality pH value and conductivity of the intercooling circulating water can be realized, so that system corrosion is effectively inhibited, the service life of equipment is prolonged, and safe and economical operation of a unit is guaranteed.
Owner:XIAN THERMAL POWER RES INST CO LTD

Optical element performance test system and method based on ultralow-temperature high-vacuum coupling

PendingCN121855832AImplement performance testingAchieve stress field separationTesting optical propertiesVacuum pumpingHigh reflectivity
The invention relates to an optical element testing system, in particular to an optical element performance testing system and method based on ultralow-temperature high-vacuum coupling, and aims to solve the problem that an existing testing system cannot test the performance of an optical element while simulating an ultralow-temperature and ultrahigh-vacuum sequential coupling environment. Precision testing equipment is protected, and all-parameter and multi-attitude stable and accurate testing of the optical element is achieved. The system comprises a testing container and a tested container which are communicated with each other, and a high-reflectivity one-way film evaporation container is arranged in the testing container and used for slowing down temperature and pressure sudden change during vacuumizing so as to protect internal testing equipment; a contact type optical element clamping cold box is arranged in the tested container, is connected with the optical element through a flexible cold chain, and is matched with a liquid nitrogen / gas nitrogen system to realize proportional temperature regulation. The device can safely and truly simulate the extreme environment of a spaceflight deep space, and achieves the stable and accurate testing of all parameters and multiple attitudes of the optical element.
Owner:XIAN INST OF OPTICS & PRECISION MECHANICS CHINESE ACAD OF SCI

Microporous low-shrinkage concrete and preparation method thereof

The invention provides microporous low-shrinkage concrete and a preparation method thereof, and belongs to the field of concrete.The microporous low-shrinkage concrete is prepared from, by weight, 300-380 parts of cement, 30-70 parts of fly ash, 250-350 parts of medium sand, 1200-1550 parts of guar stone, 5-10 parts of silica fume, 2-4 parts of dihydrate gypsum, 0.5-2 parts of water glass, 2-5 parts of a water reducing agent, 0.1-0.3 part of a retarder, 4-8 parts of rubber powder, 0.02-0.08 part of a thickening agent and 2-6 parts of water absorption fibers. 110 to 150 parts of water; and the porosity of the microporous low-shrinkage concrete is 8-10%. Through innovative material design and a synergistic effect, comprehensive improvement of waterproofness, crack resistance, construction performance and economical efficiency is achieved, seepage water can be changed from blocking to dredging through a unique micropore structure, and the efficient and durable anti-seepage effect is achieved; meanwhile, the stability of a base layer is guaranteed through high strength, strong bonding force is formed with a surface layer, and hollowing and cracking are effectively eradicated; in addition, the water-absorbing fiber internal curing component and the expansion component cooperate, so that the cracking risk is avoided, and the long-term stability and safety of the floor system are guaranteed.
Owner:CHANGHE SILICON (HUBEI) CONSTRUCTION TECHNOLOGY CO LTD

A vehicle body longitudinal-lateral composite telescopic control method for relieving parking pressure

PendingCN122585197AHigh spatial adaptabilityImprove parking success rate
The application relates to the field of intelligent control of automobiles, and discloses a longitudinal-lateral composite telescopic control method for relieving parking pressure, which mainly solves the problem that existing vehicles are difficult to park in narrow parking spaces due to fixed sizes. The method compares target parking space sizes with vehicle sizes, dynamically generates a longitudinal-lateral adaptive contraction strategy, and controls the chassis to cooperatively contract the vehicle body based on closed-loop compensation and time sequence decoupling logic control after pre-verification through safety interlocking inside and outside the vehicle, so that component interference is avoided; after contraction and locking, the system dynamically reconstructs updated chassis dynamics model parameters such as wheelbase, track and center of mass; and the optimal trajectory is replanned based on the reconstructed parameters, and the vehicle is automatically parked in the target parking space.
Owner:YANTAI NANSHAN UNIV

Compound microbial agent for ensiling miscanthus sinensis and application of compound microbial agent

The invention discloses a compound microbial agent for ensiling miscanthus sinensis and application of the compound microbial agent. The microbial agent is prepared from lactobacillus plantarum LW8 (CGMCC NO.28108) and lactobacillus plantarum K3 (CGMCC NO.34845) according to the viable count ratio of (1.5 to 2.5): 1. The method comprises the following steps: chopping miscanthus sinensis, adjusting the water content, spraying a zymophyte solution prepared from the complex microbial inoculant and brown sugar, and carrying out vacuum sealing and anaerobic fermentation to obtain the miscanthus sinensis silage. The complex microbial inoculant utilizes rapid acid production of LW8 and later-stage stability of K3 to synergistically promote lactic acid fermentation, can rapidly reduce the pH value, significantly inhibit protein degradation (ammoniacal nitrogen / total nitrogen is less than or equal to 0.70%) and reduce the fiber content, and finally obtains miscanthus silage with stable fermentation quality and high nutritional value.
Owner:QINGDAO AGRI UNIV

Deodorization equipment for sewage treatment station

ActiveCN224207765UReduce the effective contact areaEnsure long-term stabilityDispersed particle separationAir quality improvementBiofilmMicroorganism
The utility model discloses deodorization equipment for a sewage treatment station, which comprises biological deodorization equipment, a plurality of groups of biofilm formation fillers are arranged in the biological deodorization equipment, a cleaning mechanism is arranged in the biological deodorization equipment, the cleaning mechanism comprises two groups of first support plates, and the two groups of first support plates are respectively positioned on the upper side and the lower side of the biofilm formation fillers; cutters matched with the biofilm culturing filler in shape are mounted on the sides, close to the biofilm culturing filler, of the two first supporting plates, and a driving assembly for moving the first supporting plates is mounted at the top of the biological deodorization equipment. Compared with the prior art, according to the deodorization equipment for the sewage treatment station, when a biological membrane in the equipment is too thick, the filler is blocked, the treatment efficiency is influenced, the effective contact area between gas and the filler is reduced, the purification effect of the gas is influenced, and redundant microorganisms need to be removed, the filler is not damaged as far as possible when the biological membrane is removed; the long-term stability and the treatment effect of the equipment are ensured.
Owner:JIANGSU TIANXIN ENVIRONMENTAL PROTECTION TECH CO LTD

Double-island beam diaphragm high-pressure sensor chip and preparation method thereof

PendingCN122282156Ahigh sensitivityEnhance horizontalForce sensorPressure sensor
This invention belongs to the technical field of silicon-based piezoresistive high-pressure sensors, and specifically relates to a dual-island beam membrane high-pressure sensor chip and its fabrication method. The chip features a dual-island beam on a sensitive membrane; a set of piezoresistive strips are arranged on the upper surface of the dual-island beams, positioned along two center lines of the chip body; the dual-island beams include an island and an island, with their ends connected to the device layer, insulating layer, and support layer via a beam body; the upper surfaces of the islands are flush with the upper surface of the beam body; this significantly enhances the lateral and longitudinal stress difference in the stress concentration area, making the stress concentration effect more pronounced, improving the sensor's sensitivity, and ensuring reliable measurement results under various operating conditions.
Owner:CHINA NAT PETROLEUM CORP +1

Mining high-voltage power distribution device

PendingCN121790987Aensure reliabilityEnsure long-term stabilitySwitchgear detailsSwitchgear earthing arrangements
The invention discloses a mining high-voltage power distribution device, and particularly relates to the technical field of mining power distribution equipment, and the mining high-voltage power distribution device comprises a bevel gear transmission grounding knife, an incoming line contact shielding protection mechanism, a grounding knife copper bar connecting structure, a platform connecting structure, a front door locking mechanism, a rear door locking mechanism, a chassis vehicle and grounding knife locking mechanism, and an overhaul hanging coded lock mechanism. The action reliability of the grounding knife is improved through bevel gear transmission, the incoming line contact shielding protection mechanism realizes physical isolation protection, the copper bar connection ensures the grounding effectiveness, the connection platform structure optimizes the installation space and expansibility, and the front and rear door locking mechanism perfects the safety protection. The operation stability, the operation safety and the adaptability of the mining high-voltage power distribution device are remarkably improved, and the high-reliability and high-safety requirements of a mining power distribution system are met.
Owner:JIANGXI RONGXIN EXPLOSION PROOF ELECTRIC APPLIANCE CO LTD

Large hydrogen spherical tank automatic welding device and welding method thereof

ActiveCN122007730AImplement synchronous scanningSolve the problem of welding deviationWelding/cutting auxillary devicesAuxillary welding devicesWeld seamWelding torch
The invention relates to the technical field of automatic welding, and discloses a large hydrogen spherical tank automatic welding device and a welding method.The automatic welding device comprises an automatic welding machine, a welding seam detection module is integrally arranged at the high position of the outer end of a welding gun head of the automatic welding machine, and the welding seam detection module is provided with a real-time posture resolving unit; space coordinate parameters of a welding path are dynamically corrected; the welding seam detection module comprises a turntable seat which is fixedly sleeved outside the welding gun head through a rigid connecting piece; the swing arm assemblies are symmetrically distributed on the two sides of the welding gun head and are in revolute pair connection with the turntable seat, and the rotating angle range of the swing arm assemblies is + / -90 degrees; the scanning unit group comprises two independent scanning modules which are fixedly arranged at the tail end detection positions of the double-swing-arm assembly respectively; the welding seam detection module with the real-time posture resolving unit is integrated on the welding gun head, and the double-swing-arm assembly and the scanning unit set are matched, so that synchronous scanning of a welded area and a to-be-welded area is achieved.
Owner:ANSHAN STEEL PRESSURE VESSEL CO LTD

Intelligent lightning interceptor and lightning protection method suitable for railway overhead line system framework region

The application relates to the technical field of electric signal processing, in particular to an intelligent lightning interceptor suitable for a railway overhead line system framework area and a lightning protection method, which comprises the following steps: collecting lightning currents at each moment on each discharge rod of the intelligent lightning interceptor; determining a discharge rod corresponding to a lightning main channel based on the change rate of the lightning currents on each discharge rod; determining a main path linear deviation at the current moment; acquiring electromagnetic interference coefficients of each side branch path at the current moment, screening real lightning side branch paths in all side branch paths; determining a side branch interference degree of the real lightning side branch path at the current moment; correcting the lightning currents of the lightning main channel at the current moment based on the main path linear deviation, combining the lightning currents of the real lightning side branch path at the current moment and the side branch interference degree, acquiring total lightning currents at the current moment, and distributing and dredging the total lightning currents. Therefore, the effectiveness and precision of the lightning interceptor are improved.
Owner:ZHONGCHENG ELECTRICAL EQUIPMENT (SHANDONG) CO LTD +1

Method for preparing biotin-labeled egg allergen F1 reagent

The invention discloses a method for preparing a biotin-labeled egg allergen F1 reagent, which comprises the following steps of: a) pretreating an egg to obtain clear egg white liquid; b) mixing 0.2 M NaHCO3 buffer solutions with the same volume as the egg white and the pH value of 9.5, centrifuging to take supernate, dialyzing the supernate at the temperature of 4 DEG C, and then centrifuging to obtain an egg white extracting solution; c) performing buffer solution replacement and filtration operation on the egg white extracting solution to obtain filtrate; d) adding a labeling reagent into the filtrate for labeling to obtain a labeled reagent; e) washing and centrifuging the marked reagent for multiple times to obtain an F1 reagent; f) adding the reagent F1 into glycerol, and then sub-packaging and storing; wherein after the egg white extracting solution is obtained through dialysis in the step b), the pH value of the egg white extracting solution is adjusted to be about 4.0, then the egg white extracting solution is heated for 15-30 min at the temperature of 60-65 DEG C, the egg white extracting solution is rapidly cooled and then centrifuged for 10 min at the temperature of 4 DEG C and the weight of 12000 g, generated precipitates are discarded, supernatant is collected, and the egg white extracting solution which is further purified is obtained.
Owner:ORIENT IMMUNOASSAY SUZHOU MEDICAL TECH CO LTD

A large arc bending injection mold and injection molding method

PendingCN122077867AExtended service lifeGuaranteed geometric accuracyMold removalHigh voltage
This invention discloses a large-arc bend injection mold and molding method, belonging to the field of injection molding technology. The mold includes a moving mold, a fixed mold, and a core mold with a circular arc core; it also includes a demolding drive mechanism for driving the core mold and product to generate a first displacement away from the fixed mold; and a pointer-type rotary demolding mechanism, which includes a pointer push rod and a push ring rotating around the axis of the circular arc core. During demolding, after the product is lifted with the core mold, the pointer push rod drives the push ring to swing along the circular arc path to push the product out. This invention also reduces the covering force by performing pre-demolding through an assisted demolding mechanism and ensures the stability of the core mold during injection molding using a core positioning mechanism. This invention replaces the traditional hot bending process with one-time injection molding, solving the problems of low production efficiency, poor roundness, and easy cracking caused by thermal stress in existing technologies for large-arc bend pipes, significantly improving the geometric accuracy and operational reliability of the product, and is particularly suitable for ultra-high voltage converter valve cooling system pipelines.
Owner:PIPELINE (TIANJIN) POLYMER MATERIALS CO LTD

Hydrophobic additive for improving moisture resistance of powder as well as preparation method and application of hydrophobic additive

PendingCN121950081ASolve the problem of moisture absorption and hardeningEnsure long-term stabilityOther chemical processesPigment treatment with organosilicon compoundsSodium bicarbonateSilicic acid
The invention discloses a hydrophobic additive based on silane modified zinc oxide as well as a preparation method and application of the hydrophobic additive. According to the additive, zinc oxide whiskers with a three-dimensional tetrapod-like structure are used as a matrix, and tetraethyl orthosilicate and hexadecyl trimethoxy silane are subjected to hydrolytic polymerization on the surface of the matrix to form a super-hydrophobic structure. The hydrophobic additive is simply mixed with traditional explosion suppression powder (such as sodium bicarbonate) which is easy to absorb moisture in proportion, so that the hydrophobicity and the anti-blocking capability of the composite powder can be remarkably improved. The process is simple, safe and environmentally friendly, the key problem that the performance of the explosion suppressant is degraded in a high-humidity environment is effectively solved, and a novel efficient material is provided for industrial dust explosion protection.
Owner:NANJING TECH UNIV

Integrated motor controller

The utility model discloses an integrated motor controller, and relates to the technical field of motors, and the motor controller comprises a heat dissipation pedestal, a power module, a heat dissipation pedestal cover plate, a capacitor group, and a control panel. The front surface of the heat dissipation base is provided with a front water channel, and the back surface is provided with a back water channel; the power module is arranged on the back of the heat dissipation base and covers the back water channel; the heat dissipation base cover plate is arranged on the front face of the heat dissipation base and covers the front face water channel, a first containing cavity and a second containing cavity are formed in the heat dissipation base cover plate, and the first containing cavity is located between the heat dissipation base and the second containing cavity; the capacitor bank is placed in the first accommodating cavity; the control panel is fixedly installed at the open end of the second containing cavity. The power module and the capacitor bank are respectively arranged on the front surface and the back surface of the heat dissipation base, so that the occupied space can be reduced, the flow resistance can be greatly reduced, and the electromagnetic compatibility can be improved.
Owner:FU TE ZHI DIAN (HANGZHOU) INFORMATION TECH CO LTD

Household appliance wire harness with heat dissipation sleeve

The utility model provides a household electrical appliance wire harness with a heat dissipation sleeve, and relates to the technical field of household electrical appliance wire harnesses, the household electrical appliance wire harness comprises a wire harness head, one side of the wire harness head is provided with three connecting ports, one side of each connecting port is fixedly connected with a connecting sleeve, and one side of each connecting sleeve is provided with a heat dissipation mechanism; according to the cable heat dissipation sleeve, the heat dissipation sleeve body and the first threaded sleeve freely adjust the position of a cable, butt joint connection is facilitated, then the second threaded sleeve is screwed down, the surface of the cable is clamped and fixed by the locking sleeve, stable connection is ensured, then the first threaded sleeve further pulls the sleeve rope and the fixing frame, and the elastic piece is pushed to be tightly attached to the cable, so that the cable is fixed. The stable connection between the cable and the heat dissipation sleeve body is enhanced, the heat dissipation effect is improved, the overall structural design is compact, installation is convenient, the risk of loosening or insufficient heat dissipation is effectively avoided, and the long-term stability and reliability of a system are ensured.
Owner:SUZHOU HONGZHONGYUAN ELECTRONIC TECH CO LTD

Joint control methods, devices, and media for preventing track derailment in electric tracked vehicles

ActiveCN121608818BSolving the cumulative drift problemEnsure long-term stabilityEndless track vehiclesElectric/fluid circuit
This invention relates to a method, device, and medium for joint control of track derailment prevention in electric tracked vehicles, and pertains to the field of tracked vehicle control technology. The method includes the following steps: S1. Acquiring multi-source sensor data from the electric tracked vehicle, including at least vehicle attitude data, track tension data, track sag data, drive wheel speed data, and environmental perception data based on quantum inertial sensors. S2. Performing spatiotemporal alignment and consistency correction on the multi-source sensor data, and fusing the corrected data using an adaptive filtering algorithm to obtain the vehicle's real-time fused state quantity. S3. Calculating a comprehensive risk index based on the real-time fused state quantity through multi-dimensional feature coupling analysis, and determining the current track derailment risk level. S4. Matching a preset hierarchical control strategy according to the determined track derailment risk level, generating joint control commands, and sending them to the vehicle's actuators, including a motor drive system and a mechanical tensioning system.
Owner:XIAMEN UNIV OF TECH