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28results about How to "Reduce configuration" patented technology

Upper drive wire coiling device

ActiveCN224242420Ularge grainreduce configurationFilament handlingCharge manipulationWire rodTemperature control
The utility model discloses an upper driving wire coiling device, and relates to the technical field of wire coiling, the upper driving wire coiling device comprises a device vertical frame, a coiling shaft assembly, a coiling shaft driving assembly and a solid solution water tank, the coiling shaft assembly is rotatably arranged on the device vertical frame in the longitudinal direction, and a plurality of coiling vertical rods distributed in the circumferential direction are arranged on one side of the bottom end of the coiling shaft assembly; the coiling shaft driving assembly is in transmission connection with one side of the top end of the coiling shaft so as to drive the coiling shaft assembly to rotate; and the solid solution water tank is driven by a telescopic piece to enter and exit from the lower part of the reel shaft assembly. By means of the method, solid solution can be conducted in time after the aluminum alloy wire is coiled, material grains are prevented from becoming large, subsequent additional solid solution pools can be reduced, and meanwhile the preorder rolling temperature is easier to control.
Owner:SICHUAN YISHANG TIANJIAO IND CO LTD

A multi-format electronic file intelligent preview method and device and equipment

The application discloses a multi-format electronic archive intelligent preview method and device and equipment. The method comprises the following steps: obtaining a file URL and a permission control parameter; optimizing Nginx load balancing and distributing Nginx reverse proxy based on the file URL and the permission control parameter; performing format conversion on the electronic archive based on the Nginx reverse proxy; and previewing and inserting a watermark based on the format conversion result. The application pre-generates a same-name file of each file in a file system, which reserves the original content of the file. When a user needs to preview and view the file in the file system, the corresponding same-name file is obtained, so that it is not necessary to consider whether the client can directly identify the file format of the file to be previewed, and the format conversion time consumption caused by the fact that the file format cannot be directly identified after receiving a preview instruction is avoided.
Owner:XIAMEN HELIDAO ENG DESIGN GRP CO LTD

A biochemical treatment device for high COD and high ammonia nitrogen wastewater

This utility model relates to the field of wastewater treatment technology and discloses a biochemical treatment device for high COD and high ammonia nitrogen wastewater. It includes an anaerobic tank, a primary A tank, a primary O tank, a secondary A tank, a secondary O tank, and a UF device connected in sequence. A water seal trough is installed at the outlet of the anaerobic tank, and the water seal trough is connected to the primary A tank via a pipe. A gas stirring device is installed at the bottom of the sealed primary A tank, and the gas stirring device is connected to the outlet of a stirring blower. The top of the primary A tank is sealed, and the top of the sealed primary A tank is connected to the inlet of the stirring blower via a pipe. In this utility model, biogas generated by anaerobic digestion is introduced as the carbon source for denitrification in the sealed secondary A tank, improving the utilization rate of carbon sources within the wastewater and saving the cost of external carbon source supplementation. The large amount of heat generated by aerobic biochemical treatment is used to heat the anaerobic circulating influent through a heat exchanger, increasing the temperature of the anaerobic tank while simultaneously decreasing the temperature of the aerobic tank, achieving energy reuse and enabling the system to achieve a "cost reduction and efficiency improvement" effect.
Owner:张明伟

Method for preparing optical-grade PMMA (polymethyl methacrylate) by integrating supercritical CO2 assisted devolatilization and microcellular foaming

ActiveCN121873415Apromote migrationImprove devolatilization efficiencyBulk chemical productionPolymer scienceOptical transmittance
The invention relates to the technical field of high polymer material processing, and discloses a supercritical CO2 assisted devolatilization and microcellular foaming integrated method for preparing optical-grade PMMA (polymethyl methacrylate), which comprises the following steps: conveying a PMMA prepolymer containing a residual methyl methacrylate monomer into a high-pressure reaction kettle to be in contact with supercritical CO2 and saturated; then, the saturated melt is subjected to rapid pressure reduction, CO2 dissolved in the melt is separated out to form a micropore structure, and residual monomers are synchronously brought out; and cooling and shaping to obtain the optical-grade PMMA material. By adopting the method disclosed by the invention, integrated preparation of efficient removal of PMMA residual monomers and micropore lightweight forming can be realized at a lower processing temperature, and the obtained material has lower residual monomer content, lower density, higher light transmittance and lower haze.
Owner:山东宏旭化学股份有限公司 +3

Automatic drawing die for wiring terminal

The utility model relates to the technical field of wiring terminal production, and discloses an automatic drawing die for wiring terminals, which comprises a die set, a drawing die set and a drawing die set, the die set comprises a male die unit and a female die unit, the male die unit comprises a main male die body, and a male die piece is arranged on the main male die body; the female die unit comprises a main female die body, and a female die piece is arranged on the main female die body. An auxiliary male die body is connected to the main male die body in a sliding mode, and a male die side cutting edge is arranged on the auxiliary male die body. An auxiliary female die body is connected to the main female die body in a sliding mode, and a female die side cutting edge is arranged on the auxiliary female die body. And the male die side cutting edge is matched with the female die side cutting edge so as to cut and discharge the wiring terminal which is formed by stretching. According to the utility model, the wiring terminal can be separated from the plate immediately after being stretched and formed, and one-time forming and separation of the wiring terminal are realized, so that additional cutting stations for separating the wiring terminal are not needed, the stations are reduced, the occupied arrangement space is reduced, the processing rhythm is slowed down, and the production efficiency of the wiring terminal is greatly improved.
Owner:CHENGDU FUHONG PRECISION TECH CO LTD

A continuous pressurized stable liquid supply system

ActiveCN224397616URealize accurate supplyMeet high-precision requirements for dosage controlPipeline systemsPressure stabilizationAutomatic control
The utility model discloses a kind of continuously pressurized stable liquid supply systems, comprising: chemical distribution module is connected with external nitrogen pipeline, the output of the chemical distribution module is communicated with control box, the output of the control box is communicated with valve group box, the output of the valve group box is communicated with process machine platform;The chemical distribution module includes pressure sensor and PLC module, the pressure sensor is located at the output of chemical distribution module;The pressure sensor is electrically connected with PLC module.Beneficial effect: improve liquid supply precision, by real-time monitoring the pressure of chemical distribution module chemical distribution module outlet, and according to pressure change automatic control start-stop of liquid supply pump, effectively keep system pressure stable in set range, to realize the accurate supply of chemical, meet the high-precision requirement of chemical consumption control in production process.
Owner:ZHEJIANG DONGKAI SEMICON TECH CO LTD

A system and process for flexible control of liquid delivery and return

ActiveCN117553302Breduce configurationReduce retrofit riskTemperature controlProcess engineering
This invention discloses a system and process for flexibly controlling liquid delivery and recirculation, relating to the field of fuel delivery system technology. The system includes a first booster pump, a second booster pump, a first fuel storage tank, a second fuel storage tank, a fuel recirculation pipeline, and a booster pipeline. The first and second fuel storage tanks are connected to the inlets of the first and second booster pumps via the booster pipeline, and the outlets of the first and second booster pumps are connected to the first and second fuel storage tanks via the fuel recirculation pipeline. The system and process for flexibly controlling liquid delivery and recirculation in this invention enables flexible control of fuel delivery and recirculation processes. By controlling the delivery of alcohol-based fuels, it achieves risk prevention, simplification, and temperature control, and allows for easy switching to meet usage requirements. It also reduces the need for fuel booster pumps and allows for redundant configuration, reducing the risk of modifying the operating equipment.
Owner:KELING ENVIRONMENTAL PROTECTION CO LTD

A continuous slicing device for Chinese medicinal herbs based on automated control

ActiveCN224616532UIncrease productivityEliminate downtime gaps
This utility model discloses a continuous slicing device for traditional Chinese medicine decoction pieces based on automated control, including a feeding hopper, a distributor, a conveyor belt, a separator, a pressing mechanism, a slicing mechanism, a vibrating screen, and a power unit. The conveyor belt is divided into several conveying channels by the separator. A distributor is fixedly connected to one end of the conveyor belt at one end of each conveying channel, and the dispensing ports at the lower end of the distributor correspond to the conveying channels. A pressing mechanism is provided at the other end of each conveying channel, and its two sides are fixedly connected to the conveyor belt. A slicing mechanism is fixedly connected to one side of the pressing mechanism. A power unit is provided at the lower end of the conveyor belt, and both the distributor and the slicing mechanism are driven by the power unit. A vibrating screen is provided at one end of the conveyor belt. The purpose of this utility model is to provide a continuous slicing device for traditional Chinese medicine decoction pieces with high production efficiency, stable product quality, reduced reliance on manual labor, and reduced equipment wear.
Owner:HUNAN YAOSHENGTANG TRADITIONAL CHINESE MEDICINE TECH CO

A combined time-shared display controller utilizing ac sampling

This utility model discloses a combined synchronous display and controller utilizing AC sampling, including a current sampling circuit and a first voltage sampling circuit connected to the machine side, a second voltage sampling circuit connected to the system side, and a microprocessor. The microprocessor includes a first set of synchronous sampling AD ports and a second set of synchronous sampling AD ports. The current sampling circuit and the first voltage sampling circuit are connected to the first set of synchronous sampling AD ports, the first voltage sampling circuit is connected to the second set of synchronous sampling AD ports, and the second voltage sampling circuit is connected to the second set of synchronous sampling AD ports. By simplifying the number of sampling channels, replacing some hardware circuits with digital calculations performed by the microprocessor, and combining RC filtering with a unified bias reference, the system achieves simplified circuit structure, high sampling accuracy, strong anti-interference capability, accurate synchronization judgment, and effective electrical parameter measurement.
Owner:HANGZHOU GUOWANG TECH +1

External electric valve motor temperature reducing device

ActiveCN224653326UWill not affect grid connection timeGuaranteed power generation
The utility model provides an external electric valve motor temperature reducing device, including the fin, the inside of fin is equipped with semiconductor radiator, and semiconductor radiator is contacted with the outer surface of electric valve motor, the end surface of fin is fixed with the batten, and the fan is installed on the batten, and the air direction of fan is towards the fin, the utility model provides an external electric valve motor temperature reducing device can cool down motor, guarantees normal operation.
Owner:THREE GORGES NEW ENERGY HAMI WIND POWER CO LTD +1

A network mode configuration system and method for multi-mode network element equipment

The application provides a network mode configuration system and method for multi-mode network element equipment. The system comprises: a program specification compiling module, which is used for providing a language specification and compiling and analyzing an input data plane function verification program by using the language specification; a program function verification module, which is used for decomposing a data plane function program to be verified into a single-mode function program, a data flow matching table item and a multi-mode coexistence mapping relationship, coding the three decomposed programs, and generating a multi-mode program function verification condition according to a compiling and analyzing result of the program specification compiling module and a coding result of the program function verification module; and a program fault locating module, which is used for solving the multi-mode program function verification condition generated by the program function verification module in a simulation environment to verify the function integrity and correctness of the data plane function program, and locating defects and faults existing in each mode function program.
Owner:Chinese People's Liberation Army Cyberspace Force Information Engineering University

Dry film photoresist multi-parameter online detection device

The invention discloses a dry film photoresist multi-parameter online detection device, and belongs to the technical field of photoresist detection. Aiming at the problems that the detection structure of the existing product on the dry film photoresist production line is dispersed and a probe of a detection instrument needs to be manually cleaned, the invention provides the following technical scheme: the air floatation vibration isolation device comprises a support frame and an air floatation vibration isolation platform, and the air floatation vibration isolation platform is positioned at the top of the support frame; detection units used for conducting multi-parameter detection on materials are arranged on the air floatation vibration isolation platform in a front-back symmetry mode. The two detection units are arranged on the same supporting frame, so that integration of multi-parameter detection of dry film photoresist on a production line is achieved, multi-parameter synchronous detection of the dry film photoresist on the production line can be achieved, the equipment cost is reduced, the detection accuracy and the detection efficiency are improved, corresponding cleaning mechanisms are arranged on the detection units, and the detection efficiency is improved. Airflow purging and wiping cleaning are integrated, and the trouble of manual cleaning is further reduced under the condition that the accuracy of a detection area is guaranteed.
Owner:浙江铭天电子新材料有限公司

Assisted driving system supporting image desensitization, assisted driving control method, and vehicle

The embodiment of the application discloses an auxiliary driving system supporting image desensitization, an auxiliary driving control method and a vehicle, relates to the technical field of auxiliary driving, and can not only perform image desensitization processing, but also effectively reduce the cost of data acquisition equipment. The system comprises a camera module, which is used for obtaining first original image data; an image data replication unit, which is used for obtaining first replication image data and second replication image data from the camera module; an auxiliary driving unit connected with the image data replication unit, which is used for performing first image processing on the first replication image data to obtain first YUV image data, and performing desensitization on the first YUV image data to obtain desensitization area information; and a data acquisition unit connected with the image data replication unit and the auxiliary driving unit, which is used for performing second image processing on the second replication image data to obtain second YUV image data, and performing desensitization processing on the second YUV image data by using the desensitization area information. The application is suitable for image desensitization operation of the auxiliary driving system.
Owner:FREETECH

Fishing net pulling device

ActiveCN224267916Ureduce configurationreduce riskFishing netsMarine engineeringZoology
The utility model relates to the technical field of fishing equipment, in particular to a fishing net pulling device which comprises a base, two sets of net pulling mechanisms symmetrically arranged on the two sides of the base and used for pulling fishing net ropes and a plurality of guide roller mechanisms independent of the base and used for guiding the fishing net ropes. The device solves the problems that a large amount of labor is needed and time and labor are wasted when an existing fresh water fishing net is dragged, and the device can conduct mechanical auxiliary dragging on a fishing net rope, so that manual force application is replaced, personnel allocation is greatly reduced, the working intensity of personnel is reduced, the fishing efficiency is improved, and the danger of manual operation is also reduced.
Owner:梁观金

An adjustable span winding apparatus and winding process thereof

PendingCN122599206Ashorten the training cycleLower operating threshold
The present application belongs to the technical field of winding equipment, and specifically relates to an adjustable-pitch winding equipment and a winding process thereof. The present application comprises a control system, a winding system, a clamping system and a walking system. The control system is provided with a man-machine interface for storing multiple sets of winding formulas, and one-key calling is not required to repeat parameter adjustment. The winding system is realized by a servo motor, a gear pair and a gear ring for radial rotary winding. The walking system is realized by a servo motor, a gear rack and a linear guide rail for axial feeding, and is matched with soft and hard double limiting to ensure safety. The clamping system is configured with a quick-change profiling wheel and a cutting device to adapt to different specifications of workpieces. The present application can stably realize equidistance and variable-pitch winding by double-servo collaborative control of rotary and walking speeds, can avoid obstacles of special-shaped joints, simplifies the mechanical structure of the whole machine, reduces operation noise, supports rapid changeover, reduces the operation threshold and labor intensity, significantly improves winding precision and product consistency, and can be adapted to winding processing of various workpieces such as very fine wire harnesses and special-shaped pipes.
Owner:SHANDONG MEICHEN ADVANCED POLYMER MATERIALS TECH CO LTD

Graphite round rod anti-edge collapse processing device

PendingCN122584520Areduce flyingImprove secondary utilization
The application discloses a graphite round rod anti-edge collapse processing device, which comprises a protection assembly, a displacement positioning assembly, a cutting device, a filtering device, a bearing assembly, a supporting structure and a transverse displacement device; the protection assembly is used for gathering cutting dust through cooperation of a baffle and a protection cover, and the cutting dust is purified through negative pressure suction of the filtering device, so that graphite dust escape is reduced; purified gas after filtration is introduced into the bearing assembly through a connecting pipe, part of the gas supports a bearing cloth to form an air cushion, and the other part of the gas enters a movable assembly through a gas distributor to lift a bearing box, and a separate gas supply source is not needed; after the graphite rod is cut, the flexible sinking of the bearing cloth and the pneumatic slow descent of the bearing box jointly absorb the impact, and the reverse airflow is used for dredging internal air holes, so that the secondary edge collapse risk of the cut rod segment due to falling, rebounding and rolling is reduced.
Owner:RENPENG INDUSTRAIAL CO LTD

System energy-saving self-air supply powder concentrator and self-air supply method thereof

ActiveCN115569842BTo achieve the purpose of self-supply of windLower the pressure valueDrive shaftRotational flow
The application discloses a system energy-saving type self-air-supply powder concentrator and a self-air-supply method thereof, which comprises a shell, a first driving device, a first transmission shaft, a second driving device, a second transmission shaft, a rotating cage, guide vanes, a material returning device and an air outlet. The first transmission shaft is connected with the rotating cage, a plurality of first axial flow vanes are arranged on the first transmission shaft, the first axial flow vanes are arranged inside the rotating cage and are arranged at a certain angle with the first transmission shaft. A plurality of second axial flow vanes are arranged on the second transmission shaft, the second axial flow vanes are arranged between the rotating cage and the air outlet and are arranged at a certain angle with the second transmission shaft. When the self-air-supply is performed, the rotating speed of the second axial flow vanes is greater than or equal to the rotating speed of the first axial flow vanes, so that the rotational flow kinetic energy generated by the two groups of axial flow vanes and the rotating cage is used to discharge the separated materials from the air outlet. The self-air-supply purpose of the powder concentrator is achieved, the pressure value at the inlet of the system fan is reduced, and thus the system resistance and energy consumption are reduced.
Owner:天津中材工程研究中心有限公司 +2

Method for manufacturing an alloyed resistive element

ActiveCN117577405Breduce configurationSimplify migrationElectrical resistance and conductanceAlloy
A method for manufacturing an alloy resistive element is performed using a roll-to-roll process. The method sequentially includes a resistor forming step of pulling a metal substrate wound on a roller to form multiple resistor bodies; a sealing step of covering the resistor bodies with insulating material; a descaling step of removing excess adhesive residue; a cutting step of cutting along the periphery of the resistor bodies; and an end electrode forming step of forming end electrodes on the exposed sides of the resistor bodies. This method utilizes a roll-to-roll process, reducing the need for personnel on the production line and thus lowering labor costs.
Owner:EVER OHMS TECH CO LTD

Electro-hydraulic hybrid drive system

ActiveCN117188561BReduced power ratingImprove hydraulic powerSoil-shifting machines/dredgersEnergy recoveryActuator
The present application relates to electro-hydraulic hybrid drive system, especially electro-hydraulic hybrid drive system with energy recovery function, comprising prime mover, main pump and main generator driven by the prime mover, overflow valve, electrochemical energy storage device powered by the main generator, at least one actuator assembly and oil tank or oil return low pressure rail, wherein, at least one common high pressure rail supplied by the main pump is further included, each of the actuator assembly comprises motor / generator, first hydraulic pump / motor, second hydraulic pump / motor and actuator, the motor / generator is electrically connected with the electrochemical energy storage device, suction control valve and oil outlet control valve are corresponded two by two, and the first hydraulic pump / motor is controlled in four quadrant operation, the second hydraulic pump / motor is hydraulically coupled with the actuator through pipeline.The present application can accurately control the speed of the motor / generator, reduce the required rated power of the motor / generator, and be modularized and expandable on the basis of energy recovery function.
Owner:GUANGDONG TECHNION ISRAEL INST OF TECH

A driving circuit and related equipment

PendingCN122092694ARealize adaptive power supplyImprove power factor correction functionDc-dc conversionAc-dc conversionControl signalControl engineering
This application provides a driving circuit and related equipment. The driving circuit includes a Vienna circuit, an MCU, and a step-down circuit. The first signal output terminal of the MCU is connected to the control terminal of the Vienna circuit, and the second signal output terminal is connected to the control terminal of the step-down circuit. The input terminal of the Vienna circuit is connected to a three-phase AC power supply, and its output terminal is connected to both the input terminal of the step-down circuit and the compressor via a DC bus. The output terminal of the step-down circuit is connected to a fan. The MCU sends a first control signal to the Vienna circuit to control its voltage conversion process, and simultaneously sends a second control signal to the step-down circuit to control its step-down processing of the input DC voltage, ultimately realizing the adaptation of the three-phase AC power supply to the compressor and the fan.
Owner:QINGDAO HAIER AIR CONDITIONING ELECTRONICS CO LTD +2

Multifunctional cantilever crane assembly for supporting tunnel lagging jack

The utility model relates to the technical field of tunnel construction equipment, and discloses a tunnel arch support multifunctional boom assembly which comprises a three-section type telescopic boom, a two-section type telescopic boom and a support assembly. The three-section type telescopic arm frame is formed by nesting a basic arm, a second-section arm and a third-section arm. A telescopic oil cylinder is arranged in the third-section arm, the left end of a cylinder rod extends out to be connected with the basic arm, and the left end of a cylinder barrel extends out to be connected with the second-section arm. The right end of the cylinder barrel is connected with an oil cylinder pulley block which is matched with an extending steel wire rope to realize the telescopic function of the boom; one end of the two-section telescopic boom is connected with the three-section telescopic boom through the connecting assembly, and the other end of the two-section telescopic boom is connected with the supporting assembly. The supporting assembly comprises a breaking hammer, a supporting frame and a gripper. According to the device, a composite telescopic scheme is adopted, the structure is simplified, synchronous telescopic of the three-section type telescopic arm is guaranteed, multiple systems are integrated to achieve multi-dimensional movement and function combination, the requirement for supporting full-process operation is met, and the equipment universality and construction efficiency are remarkably improved.
Owner:JIAOZUO TAIXIN MECHANICAL MFG

Engine package case opening and closing apparatus and method

The application provides an engine packaging box opening and closing cover equipment and method, and belongs to the field of solid rocket engine production. The equipment comprises a roller way, and an opening and closing cover mechanism frame and an unlocking positioning assembly are arranged on a frame of the roller way. The unlocking positioning assembly comprises a positioning frame, a positioning cylinder is arranged on the positioning frame, a positioning block for positioning the packaging box is arranged on an extension end of the positioning cylinder, a box cover pickup mechanism and a box cover temporary storage mechanism are arranged on the opening and closing cover mechanism frame, the box cover temporary storage mechanism comprises a temporary storage bottom plate, and box covers are stacked on the temporary storage bottom plate. The box cover pickup mechanism comprises a displacement cylinder and a guide rail arranged on the opening and closing cover mechanism frame, a displacement frame bottom is connected with a sliding block of the displacement cylinder, the displacement frame bottom is provided with a guide block matched with the guide rail, a lifting mechanism is arranged on the displacement frame, a pickup stand is installed on a moving part of the lifting mechanism, and a suction disc assembly is arranged at a lower end of the pickup stand. The equipment and method can improve the production efficiency of the overall assembly line and reduce personnel allocation.
Owner:HUBEI SANJIANG AEROSPACE JIANGHE CHEM TECH

A paper tube processing equipment

ActiveCN224425695UShorten circulation patheasy to operateMechanical engineeringIndustrial engineering
This utility model discloses a paper tube processing equipment, including a frame; a paper tube cutting mechanism installed on the top of the frame, which includes a paper tube cutting spindle and a cutting blade assembly; a chamfering mechanism including two sets of opposing chamfering assemblies, which are used to simultaneously chamfer both ends of the cut paper tubes to be processed; and a chamfering feeding mechanism for conveying the cut paper tubes to be processed to the processing position of the chamfering mechanism. The two sets of chamfering assemblies are respectively mounted on movable chamfering seats. The equipment also includes a feed servo control mechanism for driving the two chamfering seats to move synchronously towards each other to clamp and chamfer paper tubes of different lengths, or to move synchronously away from each other to release the chamfered paper tubes. This utility model integrates two major processes into one, enabling centralized operation by a single person, significantly optimizing the production process, improving chamfering accuracy, and saving labor costs and equipment floor space.
Owner:SHANTOU KANGTAI SHENG MACHINERY TECHNOLOGY CO LTD

Multi-terminal direct current system and configuration method, control method and control device thereof

The invention discloses a multi-terminal direct current system and a configuration method, a control method and a control device thereof, and the configuration method comprises the steps: configuring alternating current energy consumption in a new energy sending end converter station; the direct-current energy consumption is configured in each receiving-end converter station; the direct-current circuit breakers are arranged on the sides, close to the trunk line, of the branch lines, and the trunk line is not provided with the circuit breakers. The control method comprises the following steps: when a DC line fault occurs in a branch line, action is performed according to a device connected with the branch line; after arc extinction of the direct-current line, restarting and boosting the active step-down converter station, and reclosing the tripped circuit breaker; and after a specified number of times is repeated, when the converter station fails to restart, the converter station of the branch line where the DC line fault is located is locked, the circuit breaker of the branch line where the DC line fault is located is disconnected, and the power is adjusted. According to the invention, AC and DC overvoltage suppression after fault ride-through or locking of the modular multi-level converter is realized, and the operation requirement of a system for sending out new energy through a flexible DC island is met.
Owner:NR ELECTRIC CO LTD +2

A method for preparing optical-grade PMMA by integrating supercritical CO2-assisted devolatilization and microporous foaming

ActiveCN121873415Bpromote migrationImprove devolatilization efficiencyPolymer scienceOptical transmittance
The application relates to the technical field of high polymer material processing, and discloses a method for integrally preparing optical PMMA through supercritical CO2 assisted devolatilization and microporous foaming, which comprises the following steps: conveying PMMA prepolymer containing residual methyl methacrylate monomers into a high-pressure reaction kettle to be contacted with and saturated by supercritical CO2; then rapidly reducing the pressure of the saturated melt to make CO2 dissolved in the melt precipitate to form a microporous structure and simultaneously take out the residual monomers; and finally cooling and shaping to obtain optical PMMA material. By adopting the method, the integrally preparation of high-efficiency removal of PMMA residual monomers and microporous lightweight forming can be realized at a lower processing temperature, and the obtained material has lower residual monomer content, lower density, higher light transmittance and lower haze.
Owner:山东宏旭化学股份有限公司 +3

A method for carrying out live disconnection of a substation with an insulated hard ladder

ActiveCN115663662Bavoid capsizingAvoid the disadvantages of insufficient safety distanceSwitchgearApparatus for overhead lines/cablesTraveling blockControl theory
The application relates to the technical field of power distribution networks, in particular to a method for carrying out live disconnection of a substation lead by adopting an insulating hard ladder, which comprises an insulating hard ladder connecting device and a tipping bucket pulley device, the insulating hard ladder connecting device comprises an insulating hard ladder body, a connecting rod and a self-locking hook, and the specific method is as follows: the insulating rope of the pulley II is connected to the self-locking hook of the tipping bucket pulley device, the spring I is stretched by the self-gravity of the insulating hard ladder body or the insulating rope is pulled downwards to drive the turnover shaft to move upwards or downwards, and the turnover shaft drives the brake pad to be locked with the wire when the tipping bucket pulley does not move. The application can avoid the problem that the metal arm of the insulating boom truck is insufficient for the safety distance of the live body when the insulating boom truck is directly used to send the operating personnel into the power plant; the insulating hard ladder is prone to overturning during installation, and the operation safety is low; four cable wind ropes of the control personnel can be reduced, the operating personnel configuration can be reduced, the operation range can be reduced, time can be saved, the work efficiency can be improved, and the operation risk can be reduced.
Owner:HONGHE POWER SUPPLY BUREAU OF YUNNAN POWER GRID