99 results about "Self repair" patented technology

The invention discloses an intelligent management system and method for knowledge graph quality evaluation and self-repairing, belongs to the technical field of knowledge graphs, and aims to solve the problems that in traditional knowledge graph management, manual auditing efficiency is low, an effective automatic repairing means is lacked, and data complexity and real-time changes are difficult to deal with. The system firstly collects multi-source heterogeneous data in a target field, cleans the data through a deep learning noise recognition model, extracts entities and relationships by using a natural language processing technology, and adds metadata to convert the entities and relationships into graph structure data; then, a graph framework is defined based on the ontology, entity semantic alignment is achieved in combination with a graph neural network, and a knowledge graph is constructed by complementing implicit relations with the help of a pre-training language model. Then, the quality of the atlas is quantitatively evaluated through a four-layer quality evaluation system, meanwhile, a repair scheme is generated based on vulnerability feature extraction, knowledge base matching and decision fusion, and intelligent self-repair is achieved; the map can be monitored in real time and evaluated regularly, a repair strategy and a knowledge base are optimized through reinforcement learning, it is ensured that the map is kept accurate and time-efficient for a long time, and the practical value is improved.

The invention discloses a preparation method of modified self-extinguishing insulating oil with flame-retardant and self-repairing functions. Wherein the insulating liquid is mixed oil of mineral oil and palm oil-based modified natural ester, and the inherent high flash point characteristic of the natural ester improves the fireproof safety of the insulating oil. The modified hexagonal boron nitride (h-BN), the magnesium hydroxide nano material and the microcapsule repairing agent are added into the insulating oil, and the h-BN can capture free electrons in the oil, so that the formation and expansion of electric arcs are inhibited, and the breakdown voltage is improved. Magnesium hydroxide is heated to decompose and absorb heat, the fault temperature is reduced, and therefore the arc self-extinguishing effect is achieved. Under the action of a high electric field and a high temperature, the capsule wall of the microcapsule repairing agent is broken, meanwhile, the repairing material is released, a chemical reaction is carried out, and the insulating property of the insulating oil is repaired. The modified insulating oil prepared by the invention has high insulating strength and high flame retardance, and also has a performance self-repairing function, so that the service life of the insulating oil is prolonged.

The invention relates to the field of high polymer materials, and discloses a high-wear-resistance elastomer sole material and a preparation method thereof.The material comprises an elastomer matrix and surface-modified boron nitride nanosheets; the elastomer matrix comprises a first dynamic network and a second dynamic network which are formed through crosslinking of dynamic covalent bonds, and the first dynamic network and the second dynamic network are based on different types of dynamic covalent bonds and have different dissociation activation energy barriers or external stimulus response conditions. The surface-modified boron nitride nanosheet and the second dynamic network form a selective interface enhancement effect; the preparation method comprises the steps of polymer functionalization, nanosheet surface modification, melt blending reaction net forming, forming and the like. The obtained elastomer sole material not only has excellent wear resistance and mechanical properties, but also can realize self-repair of graded response aiming at damages of different degrees, and the service life of the material is remarkably prolonged.

The invention discloses a logistics supply chain dynamic management method based on the Internet of Things, and relates to the technical field of logistics management, and the method comprises the following steps: constructing a radio frequency interference space fingerprint database, and recognizing an interference region and generating a radio frequency interference distribution map through collecting the emission frequencies, signal intensities and spatial distributions of a plurality of radio frequency identification read-write devices. According to the method, interference hotspots are accurately identified by constructing a radio frequency interference space fingerprint database and a distribution map, and signal conflicts and response failures are avoided in combination with dynamic tag gain and time sequence management. And the communication stability is monitored in real time, local adjustment and self-checking are implemented, and rapid abnormal response and self-repair are realized. Equipment deployment and transmitting power are optimized, interference blind areas are dynamically eliminated, identification stability and data accuracy are improved, logistics errors and risks are reduced, transparency and response capability of a supply chain are enhanced, intelligent and reliable logistics management is promoted, and anti-interference capability and overall operation efficiency of the system are improved.

The invention relates to the technical field of welding, in particular to an intelligent welding control method and equipment for a gate, and the method comprises the following steps: collecting residual stress distribution data of a welding area of a gate structure in real time; performing effective screening on the residual stress distribution data, and extracting feature data segments to obtain residual stress distribution data of the welding area; based on the residual stress distribution data, whether stress abnormity exists in the welding area or not is judged, and the abnormal influence level is determined; when it is detected that stress abnormity exists in the welding area, reverse disturbance control is conducted on the basis of the abnormal influence level, the sampling frequency of the residual stress distribution data is synchronously increased, and effectiveness screening of the residual stress distribution data is relaxed; and the corrected welding effect data are fed back to a historical case database, and stress characteristics and optimization parameters of typical working conditions are stored. According to the method, the self-repairing capability of the material is excited in exception handling, and the defect of response lag of a traditional method is overcome.

The invention relates to the technical field of network operation and maintenance, in particular to a network health automatic diagnosis and closed-loop repair method and related products, and the method comprises the steps: establishing a dynamic health baseline; abnormal deviation of the real-time operation data is recognized; predicting the risk probability that the network equipment has an operation fault in the future; selecting and executing a corresponding repairing action; verifying whether the abnormal deviation is eliminated; if the abnormal deviation is not eliminated, continuing to execute repair until the abnormal deviation is eliminated or the maximum repair frequency is reached; according to the method, the accuracy and the foresight of network fault diagnosis are improved by deeply fusing the artificial intelligence algorithm into a network operation and maintenance scene, and the intelligent and autonomous management of the network is realized by introducing a closed-loop repair mechanism with autonomous learning and decision-making capabilities. And the reliability, the stability and the self-repairing capability of the whole network infrastructure are enhanced.

The invention relates to the technical field of high polymer materials, in particular to modified natural rubber and a preparation method thereof.The preparation method comprises the steps that S1, in the inert gas atmosphere, rubber and a dopamine solution are mixed and react to form a rubber system containing dopamine; s2, adding a ferric salt solution (such as a ferric chloride solution) into the rubber system containing the dopamine, stirring, gradually condensing and separating out, then washing with distilled water, and drying, so as to obtain the self-repairing modified natural rubber; the technical process is simple, preparation is easy, in the preparation process, dopamine is introduced, free iron elements are added into a system, reversible metal complex bonds are formed through the iron elements and dopamine molecules, and therefore when rubber is damaged, the iron elements and hydrogen bonds between rubber macromolecules act together, a synergistic self-repairing mechanism is formed, and the self-repairing performance of the rubber is improved. The self-repairing of the rubber material is realized, and the application requirements are better met.

The invention relates to the technical field of spacecraft electronic systems, and discloses a satellite-borne computer multi-stage fault-tolerant starting method which comprises the following steps: step 1, a management FPGA (Field Programmable Gate Array) reads a starting source identification bit of a BIOSBOOT register, and selects a main BIOS (Basic Input / Output System) storage address or a standby BIOS storage address according to an identification bit value; 2, the management FPGA starts a BIOS level watchdog timer corresponding to the BIOS storage address, and the duration of the timer is configured by a BIOSWDT register; and 3, when the BIOS-level watchdog timer is overtime and does not receive the reset signal, the management FPGA modifies the starting source identification bit of the BIOSBOOT register, and a system reset signal is generated. According to the method, the management FPGA is taken as a core, and a double-BIOS redundant architecture and a multi-disk hot standby mechanism are combined, so that the problem of system startup single-point failure caused by BIOS firmware code bit flipping or startup disk physical damage is solved, autonomous fault-tolerant recovery of firmware and a storage medium is realized, and the defect that an existing single-BIOS single-storage-medium architecture cannot self-repair hardware failure is overcome.

The invention relates to the field of floors, and particularly discloses a floor with a self-cleaning function and a preparation method.The floor comprises a main body layer, the top face of the main body layer is sequentially provided with a self-cleaning coating, an anti-fouling protection layer, a repairing function layer and a surface layer, and the self-cleaning coating is a nano composite coating; the anti-fouling protection layer is a polyurethane resin and super-hydrophobic substance mixed coating, the repairing function layer is a polyurethane resin and microcapsule mixed coating, repairing components are contained in microcapsules, the surface layer is a mixed coating of polyester resin, wear-resistant particles and an anti-ultraviolet additive, and the surface layer is a polyurethane resin and super-hydrophobic substance mixed coating. The floor with the self-cleaning function has the super-hydrophobic function, the self-cleaning function, the antifouling function, the wear-resisting function and the self-repairing function, and the high-performance requirement for the floor in the modern home and commercial environment is met.

The application provides an emulsion thickener with acid recovery stability and a preparation method thereof, and relates to the technical field of thickener.The raw materials of the emulsion thickener include polymerized monomers, emulsifiers, initiators, crosslinking agents, water and structural additives; the polymerized monomers include first monomers and second monomers, the first monomers are alpha, beta-unsaturated acid monomers, the second monomers are alpha, beta-unsaturated ester monomers, and the structural additives are polypeptides including polar amino acid residues.The emulsion thickener with acid recovery stability can quickly recover to the viscosity in the alkaline condition and gradually increase when the system changes from the alkaline condition to the acidic condition, effectively improves the response rate of network reconstruction, and realizes the self-repairing function.The preparation method of the emulsion thickener with acid recovery stability is simple and easy to operate, has good stability, and can be implemented in industrialization.

The invention relates to a fast latch based on logic isolation. The fast latch comprises a transmission gate module which adopts a plurality of transmission gates controlled by clock signals to transmit input signals to corresponding generation nodes. The generation module is used for generating a feedback node signal by adopting a plurality of mutually connected phase inverters; the feedback module is used for receiving feedback node signals and feeding back each feedback node signal to a corresponding generation node by adopting a cross feedback loop, and in a normal working state, when a clock signal is at a high level, the fast latch works in a transparent mode; when the clock CLK is at a low level, enabling the fast latch to work in a holding mode; and when a single node or double nodes are overturned, the quick latch is self-repaired. According to the latch, logic isolation is realized through a cross feedback loop, and soft errors can be repaired and correct data can be stored even if a radiation event occurs; the fast latch can provide complete DNU elasticity, and has a faster speed and a smaller area.

The utility model discloses a wear-resistant automobile cover which comprises an automobile cover body, the automobile cover body comprises a self-repairing layer, an ultraviolet-proof layer, a waterproof layer, a heat dissipation layer and a bottom cover, and the self-repairing layer, the ultraviolet-proof layer, the waterproof layer, the heat dissipation layer and the bottom cover are sequentially arranged from top to bottom. The self-repairing layer is a polyurethane coating containing chitosan and an oxetane structure, the bottom cover is made of polyester fibers, and by arranging the self-repairing layer, when the surface of the coating is scratched, the annular structure of oxetane in the self-repairing layer is broken and can generate chemical reaction after being exposed, and when ultraviolet light irradiates, the surface of the coating is not damaged, so that the surface of the coating is not damaged. The exposed tail ends of the chitosan and the oxetane in the coating attract each other and are combined together to repair the annular structure, so that the self-repair of the damaged part of the coating is realized, and the wear resistance and the practicability of the automobile cover are improved.

The invention discloses a material for improving impervious and self-healing functions of concrete and a preparation method of the material. The material is prepared from 8-10 parts of polypropylene fibers, 30-35 parts of a magnesium expansion material, 30-35 parts of an active low-carbon cementing material, 10-15 parts of a mineral admixture active exciting agent, 3-5 parts of sodium carbonate, 1-2 parts of calcium formate, 3-5 parts of a catalyst and 1-2 parts of a penetration enhancer. The polypropylene fiber is monofilament or reticular modified polypropylene fiber, the length is 6-19mm, and the diameter is 18-48; the active low-carbon cementing material is one or more of granulated blast furnace slag micro powder or I-grade fly ash; the catalyst is an aluminate compound and is used for accelerating the reaction process of active substances, calcium ions and water. The water penetration resistance of the concrete is remarkably improved by exciting the activity of the active low-carbon cementing material in the concrete, pores and cracks in the concrete can be effectively filled, and the self-repairing and healing capacity of the concrete is improved.

The utility model discloses water conservancy pipeline anti-corrosion coating equipment which comprises a water pipe body and connecting ends, the two ends of the water pipe body are fixedly connected with the connecting ends, external threads are arranged on the outer surfaces of the connecting ends, and the outer surfaces of the connecting ends are in threaded connection with protection rings and fastening bolts through the external threads respectively. The nanometer protection layer, the light reinforcing layer and the natural protection layer are arranged, the nanometer ceramic coating is arranged in the nanometer protection layer, the nanometer technology is adopted, the coating has high hardness and good corrosion resistance, the abrasion resistance of the water pipe can be remarkably improved, the glass fiber reinforced plastic material is arranged in the light reinforcing layer, and the natural protection layer is arranged in the light reinforcing layer. The natural protective layer has good corrosion resistance, light weight and high strength, the weight of the pipeline can be reduced, the mounting efficiency is improved, the interior of the natural protective layer is made of clay, an additional protective layer is provided for the pipeline by utilizing the corrosion resistance of natural clay, and meanwhile, the natural protective layer has certain self-repairing capacity.

The utility model discloses a high-strength graphite electrode, which belongs to the technical field of graphite electrodes and comprises a graphite electrode body and a connector, internal threads are respectively arranged at two ends of the graphite electrode body, a first external thread is arranged on the connector, a second external thread is arranged on the connector, a vertical groove is arranged on one side of the connector, and the vertical groove is connected with the graphite electrode body. A groove is formed in the graphite electrode body, an inner core of the graphite electrode body is a graphite electrode layer, the outer side of the graphite electrode layer is wrapped with a self-baking electrode, reinforcing ribs are uniformly distributed in the self-baking electrode, and the outer side of the self-baking electrode is wrapped with a wrapping layer; according to the high-strength graphite electrode, the interlayer shear strength is improved through the carbon nano reinforcing ribs, under the action of the vertical grooves and the grooves, stress is dispersed, the service life is prolonged, the weight of the graphite electrode body of the hollow structure is reduced, hot melting is reduced, the self-baking electrode has a self-repairing function, the consumption of the electrode is reduced, and the service life of the electrode is prolonged. And the anti-oxidation service life is prolonged through the coating layer of the amorphous carbon layer.

The utility model discloses a multifunctional body patting machine, which belongs to the technical field of traditional Chinese medicine massage and comprises a cabinet body, a limit groove is arranged on the front side of the cabinet body, a moving rod is arranged in the limit groove, a driving mechanism for driving the moving rod to move up and down is arranged in the cabinet body, and a protective cover is arranged at the end of the moving rod. A first motor is arranged in the protective cover, a rotating disc is arranged below the first motor, and a flapping bag is arranged on the outer side of the rotating disc. The height of the moving rod is adjusted through the driving mechanism, the motor is used for driving the rotating disc to rotate, and therefore the beating bag is driven to rotate to beat the human body, lasting beating can be achieved, force is even, and the defect of manual beating is overcome; the patting machine is used for patting meridian points of the whole body of the human body, clogging of all parts of the human body can be quickly removed, the immunity of the human body is improved, the self-repairing capacity is enhanced, and chronic diseases are eliminated.

The invention discloses a special cementing material for anticorrosive concrete and a preparation method of the special cementing material, and relates to the technical field of building materials. The cementing material is prepared from the following components in parts by mass: 1 to 4 parts of candy pomace, 15 to 25 parts of tailings, 0.5 to 1.5 parts of a water reducing agent, 8 to 18 parts of furnace slag, 25 to 35 parts of novel low-calcium clinker, 3 to 9 parts of white mud, 2 to 6 parts of micro-plastic, 3 to 8 parts of titanium gypsum and 15 to 25 parts of aluminoferrite cement clinker, the mineral composition of the novel low-calcium clinker comprises 40%-50% of dicalcium silicate, 25%-30% of calcium sulphoaluminate, 3%-8% of calcium sulphosilicate, 3%-8% of tetra calcium aluminoferrite, 8%-15% of calcium sulfate and 1%-5% of free calcium oxide. A large amount of industrial solid waste is consumed, and the method has the advantages of being low in carbon, environmentally friendly and low in cost; through the synergistic effect of micro-expansion, close packing, conductive retardation and self-sealing carbonization, efficient comprehensive protection against various corrosion factors is achieved; the self-repairing and self-compacting capabilities are realized, so that the service life of a concrete structure in a harsh environment is remarkably prolonged.

The present invention discloses a dynamic management method for a logistics supply chain based on the Internet of Things, which relates to the field of logistics management technology and includes the following steps: constructing a radio frequency interference spatial fingerprint library, identifying interference areas and generating a radio frequency interference distribution map by collecting the transmission frequency, signal strength and spatial distribution of multiple radio frequency identification reading and writing devices. The present invention accurately identifies interference hotspots by constructing a radio frequency interference spatial fingerprint library and a distribution map, and combines dynamic tag gain and timing management to avoid signal conflicts and response failures. Real-time monitoring of communication stability and implementation of local adjustment and self-checking can achieve rapid abnormal response and self-repair. Optimize equipment deployment and transmission power, dynamically eliminate interference blind spots, improve identification stability and data accuracy, reduce logistics errors and risks, enhance supply chain transparency and responsiveness, promote intelligent and reliable logistics management, and improve the system's anti-interference ability and overall operational efficiency.

The invention relates to the technical field of remote control, in particular to an automatic contraction hanging basket remote control system which comprises a main control unit recognition module, an automatic control module, a remote control terminal module, a data communication optimization module and an action instruction distribution module. In the invention, by combining a hanging basket contraction program with action triggering of a mechanical execution mechanism, stress monitoring of a hanging basket connecting part and action feedback, deep fusion of automatic control and real-time monitoring is realized, dynamic control and an execution path of the hanging basket are optimized, accurate action execution and efficient resource allocation are ensured, and the safety of the hanging basket is improved. The system can perform real-time control according to different working environments, errors and potential safety hazards caused by manual operation are reduced, and through continuous feedback and data updating, the system can automatically adjust a control strategy, enhance adaptability and self-repairing capability, ensure efficient and safe operation of hanging basket operation under different conditions, improve the intelligent and automatic level, and improve the working efficiency. And the overall operation efficiency and safety are obviously improved.

The invention relates to the technical field of wire and cable manufacturing, and aims to provide a high-performance digital signal cable for a high-speed rail, which sequentially comprises a cable core, a heat insulation layer, a protection repair layer, a reinforced composite shielding layer, a multiple high-flame-retardant protective layer, a high-shielding reinforced armor layer and a multiple high-flame-retardant outer sheath from inside to outside, wherein the protection repairing layer adopts a foaming belt structure with independent foam holes, the foam holes are filled with special signal transmission media, when the cable is impacted by external force or flattened, the transmission media can be released through a foam hole self-explosion mechanism, a signal transmission channel is automatically established or recovered, and the self-repairing function of the cable is achieved. Meanwhile, by adopting the large-section conductor design and combining the synergistic effect of the reinforced composite shielding layer and the high-shielding reinforced armor layer, the cable has the advantages of long-distance transmission capability, excellent shielding performance, excellent mechanical shock resistance and high-grade flame-retardant safety, and can meet the use requirements of high-speed railways in complex and severe environments.

The present invention provides a self-repairing information network intelligent monitoring method and system, which monitors all optical fibers in the network in parallel, obtains the link characteristic parameters and optical power characteristic parameters of all optical fibers, and performs link jitter prediction analysis on all optical fibers to obtain the jitter evaluation values of all optical fibers; based on the jitter evaluation values, it is judged whether it is necessary to start link self-repair; based on the execution status of the link self-repair, it is determined whether the link self-repair is successful; when the link self-repair fails, a hierarchical and classified alarm operation is performed based on the port status of the network. It calculates and processes the link characteristic parameters and optical power characteristic parameters of the optical fiber according to the association rule algorithm to determine the jitter evaluation value of the optical fiber link, thereby replacing the manual method to directly locate and handle optical fiber faults, and can also perform self-repair on the optical fiber, realizing multi-channel monitoring, second-level alarm and self-repair of the information network, and ensuring the stable, long-term and safe operation of the information network.

The invention discloses a method for reducing the water absorption rate of concrete, and belongs to the technical field of functional protective materials. According to the method, a composite coating system with crystal infiltration type waterproof and surface hydrophobic characteristics is constructed, and the impermeability and the overall mechanical property of the structure are improved through the crystal infiltration type waterproof material. Meanwhile, capillary crystallization can self-repair cracks and pores below 0.4 mm, so that the concrete structure is more compact, invasion of chemical substances, ions and water is reduced to the greatest extent, and steel bars are effectively protected from being rusted. The coating of the hydrophobic paint forms a relatively strong cross-linked grid structure in the film forming process, so that the adhesive ability of the coating is enhanced, the coating can be firmly adsorbed on the surfaces of various base materials, the coating is prevented from being peeled off, the durability and the mechanical property of the coating are enhanced, and the service life of the coating is prolonged. The method obviously reduces the water absorption rate of the concrete, improves the impermeability, durability and self-repairing capability of the concrete, and is suitable for waterproof protection of concrete structures such as constructional engineering, bridges and tunnels.

The invention relates to the related technical field of concrete, in particular to a microcapsule for self-healing concrete and the self-healing concrete. The microcapsule for the self-healing concrete, provided by the invention, is particularly suitable for a concrete structure in a high-salt-mist and high-corrosion environment. The microcapsule adopts a ceramic matrix, and a self-healing agent is packaged in the microcapsule, so that a repairing agent can be automatically released when the concrete cracks, and self-repairing of the cracks is realized. By optimizing the structural design and the preparation process of the microcapsule, the weather resistance and the corrosion resistance of the microcapsule are improved, and the microcapsule is suitable for high-salt-fog environments such as coastal areas. The invention further provides self-healing concrete containing the microcapsule, the maintenance cost can be remarkably reduced, and the service life of a concrete structure can be prolonged.

The invention discloses a hollow interlayer compound steel pipe energy dissipation anti-collision device and an installation method, and relates to the technical field of traffic safety protection. The device comprises a high-strength supporting plate, the bottom of the high-strength supporting plate is fixedly connected with a rubber strip, the bottom of the rubber strip is fixedly connected with a center shaft, the bottom end of the high-strength supporting plate is fixedly connected with a semi-arc barrel, and the semi-arc barrel is filled with first energy absorption balls; a middle layer energy absorption assembly is arranged between the bottom of the center shaft and the inner wall of the upper portion of the semicircular arc barrel. The energy dissipation protection effect is improved, meanwhile, assembly can be conducted, installation is convenient, the anti-collision position can be adjusted easily, self-repairing can be conducted after collision is conducted, repeated use is achieved, cost is reduced, then the practicability of the anti-collision device is improved, slow self-repairing can be conducted when large-force collision is conducted, and the service life of the anti-collision device is prolonged. And the damage of bounce to the driver is avoided, and the protection effect is improved.

The invention provides a concrete dam capable of achieving dam heel self-repairing, the concrete dam comprises a dam body, a detection piece and a self-repairing microcapsule, a self-repairing reinforcing area is formed at the dam heel of the dam body, and the self-repairing reinforcing area is provided with a self-repairing concrete main body; the detection piece is arranged in the self-repairing concrete main body so as to be suitable for detecting the cracking condition of the self-repairing concrete main body; the self-repairing microcapsule is arranged in the self-repairing concrete main body and is suitable for releasing a repairing agent when the self-repairing concrete main body cracks; the repairing agent is suitable for reacting with water, and the reaction product is suitable for filling cracks. According to the method, self-repairing of dam body cracking can be achieved, the integrity of the dam body is restored, the anti-seismic safety performance of the dam body is guaranteed, and the stability and reliability of the dam are improved; and meanwhile, the manual maintenance cost and time are reduced, and the maintenance efficiency is improved.

The invention provides a system abnormality diagnosis method, device and equipment and a readable storage medium, and the method comprises the steps: aiming at an embedded system running on BMC equipment, before the embedded system does not carry out dog feeding reset to trigger an overtime restart event of overtime restart of the embedded system of a watchdog deployed on the BMC equipment, carrying out dog feeding reset on the embedded system; according to the method, a watchdog pre-timeout interrupt event is introduced, a repair window is provided based on the pre-timeout interrupt event, a user mode program of the embedded system is utilized to diagnose an exception type based on system operation related information, and an exception repair strategy is introduced to try to carry out self-repair before the embedded system is restarted. According to the method, data loss and service interruption caused by direct restart are reduced, the dog feeding request is actively sent to the kernel to reset the watchdog timer when the abnormity of the embedded system is successfully repaired, system restart is inhibited, unnecessary system restart is avoided, and reliability and recoverability of the system are improved.

The invention discloses a preparation method of a self-repairing proppant, which comprises the following steps: S1, uniformly mixing a monomer A and formaldehyde, adding an alkaline reagent to adjust the pH value to 8-9, and stirring and reacting for 0.5-1 hour in a constant-temperature water bath at 50-80 DEG C to obtain a prepolymer solution; adding a repairing agent, a diluent and a surfactant into the prepolymer solution, stirring and emulsifying, adding an acidic reagent to adjust the pH value of the solution to 3-5, and stirring and reacting at 40-60 DEG C for 1-3 hours to obtain a microcapsule solution A; s2, uniformly mixing a monomer B, a cross-linking agent, an initiator and an inorganic filler, and adding a curing agent to form a solution B; s3, mixing the solution A with the solution B, heating the mixed solution to 50-60 DEG C, and carrying out constant-temperature reaction for 0.5-1 hour to form particles in the solution; continuously heating to 80-100 DEG C, keeping the constant temperature for 2-3 hours to cure the particles, and finally carrying out suction filtration, washing and drying on the cured particles while the particles are hot to obtain particles, namely the self-repairing proppant. The self-repairing proppant provided by the invention can be effectively prevented from being broken through self-repairing, so that the flow conductivity of cracks is maintained.

The invention discloses a motor anti-corona structure design method and device considering the voltage division proportion of an anti-corona structure, core parameters of the motor anti-corona structure can be obtained by testing and calculating specific parameters of a motor bar, the method is suitable for various motors, especially high-voltage and ultrahigh-voltage motors and high-voltage variable-frequency motors, and the motor anti-corona structure design method and device are suitable for various motors. The device can simulate stator end parts of motors of multiple models, avoids the problem that a large-scale production line needs to be used for preparing winding bars when anti-corona structures of motors of different models are tested, and also avoids the problem that the corona discharge test of an anti-corona layer is interfered by partial discharge in a main insulator by utilizing the self-repairing characteristic of insulating oil. Through cooperation of the motor anti-corona structure design method of the anti-corona structure partial pressure proportion and the motor anti-corona structure detection device, design of various motor anti-corona structures can be realized, and the motor anti-corona structure detection device has the advantages of wide application scene, low cost, easy realization and the like. And rapid, accurate, simple, convenient and economical design and evaluation of different motor anti-corona structures are facilitated.

The invention relates to the technical field of polymer composite materials, and particularly discloses a nano-composite self-repairing cable sheath material and a preparation method thereof. The invention discloses a nano composite self-repairing cable sheath material. The cable sheath material is prepared from the following raw material components in parts by weight: 110 to 130 parts of organic silicon-polyurethane block copolymer, 2.5 to 4.5 parts of silane treatment filler and 2 to 6 parts of microcapsules, the organic silicon-polyurethane segmented copolymer is prepared from the following raw materials: a polyurethane prepolymer, amino silicon oil, dithiodipropionate and 1, 4-benzene bis (pinacol) diborate; the microcapsule is prepared from the following raw materials: urea, a formaldehyde solution and polydimethylsiloxane; the silane-treated filler is prepared from the following raw materials: a carbon nano tube, nano titanium dioxide and a silane coupling agent. The sheath material disclosed by the invention has relatively good self-repairing performance and tensile strength.

The utility model discloses a hernia belt which comprises an elastic belt and a treatment bag. A protrusion is arranged on the lower face of the treatment bag and comprises a plurality of cushion blocks which are sequentially overlapped, every two adjacent cushion blocks are detachably connected through a hook-and-loop fastener or a pin shaft or a stud, and the height of the protrusion is adjusted by changing the number of the cushion blocks. One end of the elastic band is fixedly connected with one side face of the treatment bag, the other end of the elastic band is detachably connected with the other side face of the treatment bag through a fastener, and the two ends of the elastic band are opposite. The height of the protrusion of the treatment bag can be correspondingly adjusted according to the self-repairing condition of tissue of a weak part, so that the recovery time of hernia is shortened, and the treatment effect on hernia masses is improved.