31results about How to "Solve the durability problem" patented technology

The embodiment of the invention provides a data storage method and device for a solid-state storage device and a storage medium, and the method comprises the steps: obtaining a target task and a target task type of the target task; under the condition that the target task type is the first task type, executing a first classification operation on the target task by using a pre-trained first target classification network to obtain a first classification label; executing a second classification operation on the storage layers in the target data block by using a pre-trained second target classification network to obtain categories of a plurality of storage layers in the target data block; and determining a target storage layer matched with the first classification label based on the plurality of categories of the plurality of storage layers, and storing the to-be-written data into the target storage layer. Through the method and the device, the problems of durability and data reliability of the solid-state storage device in related technologies are solved.

The present invention discloses an adhesive composition for fuel cells and a preparation method thereof, which relates to the technical field of fuel cells, and comprises a release layer I, a hot melt adhesive layer I, a hot melt adhesive layer II and a release layer II arranged in sequence; the hot melt adhesive layer I is an acid-modified polyolefin resin hot melt adhesive layer, and the hot melt adhesive layer II is a modified polyurethane resin hot melt adhesive layer. The single cell manufacturing process is simplified, the efficiency and yield are significantly improved, and the production efficiency is greatly improved. At the same time, only the adhesive layer is used during the battery packaging process, which effectively reduces the production cost.

The invention relates to the field of novel technical material research of civil engineering, in particular to a cold-mixed and cold-laid super-early-strength semi-flexible pavement mixture which comprises the following components in parts by mass: 100 parts of a reactive cold-mixed asphalt mixture, 10-15 parts of an excitation-based grouting material and 2-4 parts of a water-based curing agent, the reactive cold-mixed asphalt mixture, the excitation-based grouting material and the water-based curing agent can be subjected to a curing reaction in pairs to form a three-dimensional network structure, so that the interface performance and the overall mechanical strength of the semi-flexible pavement mixture are comprehensively improved. By adopting the cold-mixed and cold-laid super-early-strength semi-flexible pavement mixture disclosed by the invention, rapid construction at normal temperature can be realized, the effects of energy conservation and emission reduction are achieved, and the problems of rut damage and durability of an asphalt pavement of a heavy-duty road section are effectively solved.

The invention discloses an assembly type FRP profile-concrete continuous composite beam which is mainly composed of an FRP profile main beam, a sagging moment area prefabricated concrete slab and a hogging moment area prefabricated laminated slab. Wherein the upper part of the hogging moment area prefabricated laminated plate is a large-strain FRP grid reinforced EGC top plate, the lower part of the hogging moment area prefabricated laminated plate is an FRP rib reinforced concrete bottom plate, and shear-resistant short steel bars are vertically arranged on the two; the beam sections of the FRP profile main beam are connected through FRP lap joint plates, U-shaped formwork-free comb-tooth-shaped wet joints are arranged between the plates, and the FRP profile main beam is connected with the upper prefabricated concrete slab and the laminated slab through detachable high-strength bolts. According to the structure, the characteristics of ultrahigh ductility, multi-seam steady-state cracking and higher tensile strength of a large-strain FRP grid reinforced EGC material are fully utilized, and meanwhile, the advantages of light dead weight, high strength and high elasticity of an FRP profile and the advantages of large rigidity, good stability, low construction cost and the like of a concrete wing plate are exerted; and the reliable and durable assembly type functional gradient composite beam is formed.

The invention discloses an application of an anti-corrosion and anti-seepage agent in a phosphate radical and fluorine ion environment, which is characterized in that the anti-corrosion and anti-seepage agent is added into concrete according to 0.5-3% of a cementing material to prepare a required structure for resisting corrosion of phosphate radicals and fluorine ions. A concrete test piece added with the anti-corrosion and anti-seepage agent is in a phosphorus-fluorine acid environment for a long time, the compressive strength of the concrete test piece is still in an enhanced trend, the addition of the anti-corrosion and anti-seepage agent has the effect of resisting corrosion of phosphate radical and fluorine ion environment acid wastewater, and a concrete structure can still be very stable even in a strong acid environment; the high efficiency can provide a feasible solution for prolonging the service life of highly acidic environment structures such as ardealite storehouses and the like.

The invention discloses a segmented series spring shock absorber and machining equipment, and belongs to the technical field of vehicle shock absorption. The shock absorber comprises a gas spring, a heavy-load spring, a light-load spring and a retainer, wherein the retainer is arranged between the light-load spring and the heavy-load spring; a load energy release device and a temperature adaptation assembly are further arranged on the retainer, and the load energy release device comprises a bearing disc, an annular storage cavity and an energy release pad and is used for absorbing beat vibration energy; the temperature adaptation assembly comprises a ventilation hole and a friction pad, heat generated by the friction pad can be transmitted to the energy release pad, and low-temperature compensation and high-temperature heat dissipation are achieved. The invention further provides milling equipment for machining the clamping-in groove and the wedge-shaped groove, precise machining of the wedge-shaped groove is achieved through the eccentric milling principle, and the pressure relieving assembly ensures that a cutter stably stretches out through buffering of non-Newtonian fluid. The problems of response accuracy, retainer stability, beating vibration durability and temperature adaptability of the shock absorber under different load working conditions are effectively solved.

The invention discloses a strong-sun-protection moisture-absorption quick-dry breathable dry elastic fabric and a preparation process thereof, and relates to the technical field of fabrics. The preparation method comprises the following steps: step 1, preparing polyester spandex core-spun yarns by taking polyester yarns with a sun-proof function as sheath yarns and spandex yarns as core yarns; tatting by taking the fabric as warp yarns and weft yarns to obtain a tatted fabric; 2, the woven fabric is sequentially subjected to low-temperature pretreatment with alkali liquor, first cation finishing liquid treatment, sulfonic gelatin finishing liquid treatment and second cation finishing liquid treatment; and performing high-temperature setting to obtain the strong-sun-protection moisture-absorption quick-drying breathable dry elastic fabric. In the application, the covering yarn with the sunscreen property is used as an internal sunscreen layer, and the finishing layer on the surface of the fabric is used as an external sunscreen layer, so that the high-strength ultraviolet protection property of the fabric is synergistically realized; meanwhile, the prepared fabric has excellent moisture absorption and quick drying properties and washing fastness.

The invention provides a fuel cell, a membrane electrode assembly and a preparation method thereof. The electrode assembly comprises an outer frame and an inner frame, the outer frame is arranged on the outer side of the gas diffusion layer, the outer frame and the gas diffusion layer are arranged at an interval, and the outer frame comprises a first outer frame and a second outer frame which clamp the edge of the catalyst layer coating film; the inner frame is arranged between the outer frame and the gas diffusion layer and comprises a first inner frame and a second inner frame which are positioned on two sides of the proton exchange membrane; the side faces, facing the gas diffusion layer, of the first outer frame and the second outer frame are each provided with a first recess, the side faces, facing the outer frame, of the two sub-layers are each provided with a second recess, one parts of the first inner frame and the second inner frame are located in the first recesses, and the other parts are located in the second recesses. The contact surface of the catalyst layer coating film and the outer frame and the contact surface of the gas diffusion layer and the inner frame are both glued, the catalyst layer coating film abuts against the contact surface of the inner frame, the membrane electrode assembly can effectively overcome the transverse stress, and the durability of the membrane electrode sealing frame is remarkably enhanced.

The utility model discloses a kind of dry concrete sleeve tenon-and-mortise connection integrated modular building systems, including top plate, bottom plate and the integrated several boxs by four corners L-shaped shear wall and partition wall, the wall body reinforcement of the L-shaped shear wall is composed of several main force steel bars in vertical direction and several structural steel bars in horizontal direction, the L-shaped shear wall is equipped with connecting recess in the upper and lower ends of the main force steel bar, the outer end of the structural steel bar.All adopt factory integrated production and processing, box adopts basalt rib, the horizontal and upper and lower connection of box and box all adopt standard high-performance concrete suite connection, the transmission of horizontal force between box is transmitted by the friction and mechanical bite force formed by suite and recess, improve the overall performance of structure, can realize horizontal load transmission to two directions simultaneously;The present application is high in degree of assembly, can realize the factory production of structure decoration integration, and can realize the diverse combination between box.

The embodiment of the utility model relates to the technical field of cabinet body structures, in particular to a detachable connecting piece and a cabinet body. According to the connecting piece and the cabinet body using the connecting piece provided by the utility model, the zinc alloy eccentric block with a metal structure is hooked and connected to a nylon gap in another steel plate through 90-degree rotation, so that firm connection is realized. The three-in-one connecting piece is collectively called as a three-in-one connecting piece When the medical treatment cabinet needs to be taken down, the medical treatment cabinet can be disassembled only by reversely rotating the eccentric connecting piece made of the zinc alloy by 90 degrees, and therefore the medical treatment cabinet can be disassembled and assembled at will and is convenient to transport. In addition, the connecting piece is assembled only after powder spraying is conducted on the plates to be connected, and the problems that in the prior art, powder spraying is conducted only after integral forming is conducted, so that the corners cannot be completely covered with powder, and consequently the quality and durability of the cabinet body are poor are solved.

The invention provides a tire grating component without mechanical damage and a method, relates to the field of solid waste utilization, and aims to solve the problem that the grating performance is affected due to the fact that the grating fixing position formed by a current tire strip easily causes mechanical damage to the strip. The crossed positions of the longitudinal strips and the transverse strips of the tire grating are wrapped and connected by the hardened body formed by the slurry, so that the durability problem caused by the fact that metal connecting pieces such as rivets are easy to rust is solved, meanwhile, the problem that the tensile strength of the tire grating is influenced due to mechanical damage to the tire grating is avoided, and the tensile strength of the tire grating is improved.

The invention belongs to the technical field of fuel cells, and particularly relates to a gas diffusion layer and a preparation method and application thereof. The gas diffusion layer comprises a base material layer and a micropore layer which are arranged in an overlapped mode. The microporous layer comprises the following raw materials: a carbon-based loaded cerium oxide material, a first water repellent agent, a functional additive and a solvent. The gas diffusion layer has the beneficial effects that the micropore layer in the gas diffusion layer contains the cerium oxide, and the cerium oxide is loaded on the carbon powder through a chemical synthesis method, so that the gas diffusion layer formed by the method of adding the cerium oxide into the micropore layer is more stable and uniform; cerium oxide is not easy to fall off from the surface of the prepared gas diffusion layer, so that the durability of the gas diffusion layer is improved, and the service life of the proton exchange membrane fuel cell is prolonged; the cerium oxide-loaded carbon powder added into the microporous layer is high-graphitization-degree carbon powder, so that the durability of the gas diffusion layer is further improved, and the contact resistance of the gas diffusion layer is reduced.

This invention relates to the field of nonwoven fabric technology, and in particular to an antibacterial, anti-backflow, and easily permeable ES fiber hot-air nonwoven fabric. The ES fiber has a core-sheath composite structure, including a sheath layer and a core layer. The sheath layer uses hydrophobic PE as the matrix and, by mass percentage of the hydrophobic PE matrix, includes the following components: 0.5-1% antibacterial agent, 2-3% dispersant, 0.2-0.3% antioxidant, and 1-10% hydrophilic PE masterbatch. The mass ratio of the sheath layer to the core layer is 4-5:5-6. The core layer is made of PET or PP. The advantage of this invention is that by optimizing the sheath-core ratio, the amount of additives, and the process parameters, the ES fiber hot-air nonwoven fabric simultaneously meets the requirements of rapid permeation, anti-backflow, long-lasting antibacterial effect, softness and skin-friendliness, and structural strength. It breaks through the performance bottleneck of traditional sanitary product surface layers, which are characterized by "hydrophilicity leading to easy backflow, hydrophobicity leading to slow permeation, and short-lasting antibacterial effect," and solves the defects of existing materials with single functions.

This invention relates to airbag fabrics and a method for preparing airbag fabrics, the airbag fabric comprising: a textile substrate; and a coating on at least one side of the textile substrate, wherein the coating comprises a polyurethane resin, a crosslinking agent, and a hydrophilic thickener, and the crosslinking agent is a compound having blocked active groups. The method for preparing the airbag fabric comprises the steps of: preparing a textile substrate; and forming a coating on at least one side of the textile substrate, wherein the step of forming the coating comprises the steps of: adding a crosslinking agent and a hydrophilic thickener to a polyurethane aqueous dispersion to prepare a coating solution; coating the coating solution onto at least one side of the textile substrate; drying the textile substrate coated with the coating solution; and heat-treating the dried textile substrate.

The utility model relates to the technical field of rubber base plate forming, and discloses an under-rail rubber base plate forming device which comprises a stirring bin, the top of the stirring bin is fixedly connected with a top cover, the top of the top cover is fixedly connected with a first motor, the output end of the first motor is fixedly connected with a rotating plate, and the interior of the rotating plate is rotationally connected with a rotating rod. The top of the rotating rod is fixedly connected with a gear, the interior of the top cover is fixedly connected with an annular rack, the annular rack is meshed with the gear, the outer wall of the rotating rod is fixedly connected with a rotating shaft, and the outer wall of the rotating shaft is rotatably connected with stirring blades. According to the utility model, the problem that the structural strength and durability of the base plate are influenced by insufficient stirring is solved, and sufficient stirring and mixing are achieved, so that filler, a softening agent and other additives in a rubber raw material can be uniformly distributed, the internal uniformity of the base plate is further improved, and the performance of the base plate is more stable and reliable.

The invention discloses a prestressed roof truss beam tensioning method which comprises the following steps: S1, prefabricating a component: binding a steel reinforcement framework, mounting an embedded part, setting a reserved hole channel, and pouring and maintaining concrete in sequence to form a roof truss beam concrete component with the reserved hole channel; the prestressed steel strand is penetrated into the reserved hole channel, the prestressed steel strand is an intelligent sensing steel strand, the structure of the prestressed steel strand is that an optical fiber rope is replaced or merged into the center wire position or the stranded rope core of the prestressed steel strand, at least a plurality of optical fiber sensors are packaged in the optical fiber rope, and the optical fiber sensors are arranged in the optical fiber rope; and a plurality of steel wires are uniformly arranged outside the optical fiber rope or the central wire. According to the method, the tensioning quality is improved from'result verification 'to'process controllability and result knowing', the controllability and precision of the tensioning process are achieved, the problem that prestress application is unqualified due to unsmooth hole channels, equipment errors and the like is solved, and it is guaranteed that the initial state of the structure is healthy.

The invention discloses a method for comprehensively improving and monitoring the durability of a desalination plant project, comprising the following steps: S1, using a half-cell potential method to measure the corrosion of steel bars, steel meshes and raft foundations in concrete; S2, using a linear polarization method to further detect the corrosion rate of steel bars; S3, using an AC impedance spectrum method to observe the microstructural changes of concrete after corrosion; S4, using an impressed current cathode protection method to avoid or weaken the occurrence of corrosion reactions; S5, using COMSOL simulation software to construct a chloride ion transmission model. The invention solves the durability problem in the construction of a desalination plant project; has a good effect in preventing steel bar corrosion; uses COMSOL simulation software to establish a chloride ion transmission model, combines monitoring data, and predicts the time and depth of corrosion with high accuracy; the monitoring structure system is complete; and can be promoted and applied to other corrosive concrete structures, with great promotion and application value.

The utility model relates to the technical field of automobile parts, in particular to a sealing structure of an automobile door window frame and an automobile door inner plate, which comprises the automobile door window frame, the automobile door inner plate and a sealing strip matched and connected with the automobile door window frame and the automobile door inner plate. A lap joint part sealing strip clamping structure is arranged on the vehicle door window frame along the outer edge of the vehicle door and the outer edge of the outer edge of the vehicle door inner plate and wraps the outer edge of the lower portion of the vehicle door window frame, a sealing structure connected with the lap joint part sealing strip clamping structure in a clamped mode is arranged on the sealing strip, and the sealing structure comprises a tight strip, an abutting plate, a clamping plate and an expansion structure strip. According to the sealing strip, the connection sealing performance of the zigzag corner bending position of the lap joint portion of the vehicle door window frame and the vehicle door inner plate is guaranteed, meanwhile, through the section structure design of the sealing strip, it can be guaranteed that clamping connection has enough lap joint amount while the assembling mode of buckle clamping connection is kept through the sealing strip, the inclusiveness of a product is improved, and the sealing performance of the vehicle door window frame and the vehicle door inner plate is improved. The sealing strip can be better matched with a vehicle door window frame and a vehicle door inner plate, and the sealing performance is good.

The invention discloses a high-performance fiber polymer material and a spinning preparation method thereof, and relates to the technical field of spinning preparation, and the spinning preparation method of the high-performance fiber polymer material comprises the following steps: S1, preparing a polystyrene solution, a nano silicon dioxide suspension and a chitin and chitosan mixed acetic acid solution; s2, preparing a polydopamine solution, a nano titanium oxide suspension liquid, a carbon nano tube and a graphene dispersion liquid; s3, preparing a core layer solution and a shell layer solution; s4, carrying out defoaming treatment on the core layer solution and the shell layer solution; s5, preparing a high-performance fiber polymer material; s6, cleaning and drying the high-performance fiber polymer material; and S7, carrying out tensile property test on the high-performance fiber polymer. The fiber polymer material with a core layer structure is prepared, and the fiber polymer material is alternately subjected to thermocuring and photocuring, so that the processability and the mechanical property of the fiber polymer material are optimized.

The invention provides a microplastic adsorbent based on organic materials and a soil carbon sequestration method. According to the micro-plastic adsorbent based on the organic material and the soil carbon sequestration method, the micro-plastic adsorbent comprises 25-40% of a modified biomass-based material, 8-15% of an environment-friendly cross-linking agent, 5-12% of nanoscale metal oxide particles, 15-30% of a porous carbon material, 1-5% of a stabilizer, 2-6% of a biological enzyme compound, 3-8% of magnetic nanoparticles, 1-3% of an antioxidant and 2-5% of a reinforcing agent. According to the micro-plastic adsorbent based on the organic material and the soil carbon sequestration method, multifunctional components such as the modified organic material, the nanoscale metal oxide, the porous carbon material, the bio-enzyme compound and the magnetic nanoparticles are used, so that the problems that a traditional organic material adsorbent is relatively low in durability and poor in adsorption selectivity are solved; the modified biomass-based material is subjected to alkaline treatment and pyrolysis, so that the mechanical strength and the durability are enhanced, and the efficient adsorption performance of the adsorbent in long-term use is ensured.

The utility model discloses a kind of combined type underwater light piles for far-sea island reefs, including pile body, ladder and pile body platform;The top of the pile body installs pile body platform, and the pile body platform includes pile body mounting seat, and the side surface of the pile body installs ladder, and it is convenient to go up, down pile body platform;The present application is constructed by lattice type steel structure pile body, solve the problem that light pile is weak in ability of anti storm surge and inconvenient to construct in far-sea island reef, simultaneously, the pile body is installed below seabed surface 8m, can improve the stability of entire structure well.The present application is arranged by regular pentagon steel pipe pile and multiple triangular structure, solve the problem that light pile is poor in wind and wave resistance when being installed in coral reef etc. position, inconvenient to install, simultaneously, the stability of light pile whole is improved while reducing construction difficulty by split type assembly between each component.

The invention provides a fuel cell clamp and a temperature control method, and the fuel cell clamp comprises a first end plate and a second end plate which are respectively arranged at one side, far away from a collector plate, of two insulating plates of a cell stack and are connected with each other to clamp the cell stack, and the first end plate is respectively provided with a first water passing channel and a second water passing channel; a first water channel and a second water channel are respectively arranged between the first end plate and the bipolar plate far away from the first end plate, two ends of the first water channel are respectively communicated with the first water channel and a water channel in the bipolar plate, and two ends of the second water channel are respectively communicated with the second water channel and a water channel in the bipolar plate; wherein the first water passing channel is located above the second water passing channel in the vertical direction, so that water is introduced into the first water passing channel or the second water passing channel, and the problems of poor performance and durability of a membrane electrode of a fuel cell in the prior art are solved.

The utility model discloses a stone arch bridge reinforcing structure which comprises a plurality of profile steel cover arches and carbon fiber rods. A plurality of profile steel cover arches are evenly arranged on the bottom edge of the stone arch bridge, angle steel is fixedly connected to the two ends of each profile steel cover arch, arch springing locking steel plates are embedded in arch springing positions of every two adjacent profile steel cover arches, and the arch springing locking steel plates abut against the angle steel. One side of the angle steel is connected with the profile steel cover arch and the arch springing locking steel plate through bolts a, the other side of the angle steel is connected with the arch springing locking steel plate through bolts b, the bolts b penetrate through the angle steel, and the ends, penetrating through the angle steel, of the bolts b are inserted into arch springing newly-added concrete; a plurality of carbon fiber rods are inserted into the stone arch bridge solid web section. The structural form that the profile steel cover arch is combined with the carbon fiber rods is adopted, the bottom edge and the solid web section of the stone arch bridge are reinforced, the angle steel is adopted for improving the connecting strength of the arch foot locking steel plate and the arch foot newly-added concrete, and the technical problem that durability and safety are insufficient due to the fact that the load of a masonry arch bridge is increased at present is solved.

The invention discloses a brick-clad city wall ruins anchoring structure based on EBTP anchor rods, comprising EBTP anchor rods and brick-clad walls; steel bars are inserted into bamboo pipes, the length of the steel bars is greater than the length of the bamboo pipes, the steel bars are inserted into the bamboo pipe sections and extended into the anchoring sections in the rammed earth of the city wall, the steel bars extend out of the bamboo pipe sections and extend into the anchoring sections in the brick-clad walls, the steel bars are inserted out of the outer end face of the brick-clad walls and fixed by bolts and anchor plates; the expanded anchor section is arranged in the middle section of the steel bars in the bamboo pipes, and is located between the pressure section and the tension section of the brick-clad walls. The critical anchoring length is multiplied and the ultimate pull-out bearing capacity is greatly improved through the transformation of multiple force transmission modes, and the structure can meet the anchoring requirements of large rammed earth ruins structures such as brick-clad city walls and rammed earth city walls.

The invention discloses a method for preparing a thermal insulation material by resource utilization of ardealite, and relates to the technical field of non-metallic materials. Comprising the following steps: screening a phosphogypsum raw material to remove impurities; carrying out heat treatment on the screened ardealite raw material to remove moisture so as to obtain ardealite particles with uniform granularity; the temperature range of the heat treatment is 300-500 DEG C, and the treatment time is 1-3 hours. A sol-gel method is adopted to stably fix antibacterial and mildew-proof components on the surfaces of ardealite particles, so that the modified ardealite keeps excellent heat insulation performance, the heat insulation effect of the material is further enhanced through surface modification and reasonable proportioning of the composite material, and the material also has good environmental adaptability and is suitable for popularization and application. The device is especially suitable for being used in humid and warm environments where mould breeding easily occurs, so that the device can stably work for a long time in various environments.

The utility model provides a steel structure net rack support with vibration reduction performance, and belongs to the technical field of building construction. According to the scheme, through interaction of the spring shock absorbers, the fixing plates, the pneumatic dampers, the right-angle frames and the limiting plates, when the steel structure net rack support is connected with a net rack structure, vibration generated by the net rack structure can be attenuated through mutual arrangement of the load bearing platform and the shock absorption spring devices in daily use, and the service life of the steel structure net rack support is prolonged. Meanwhile, through the pneumatic damper connected between the right-angle frame and the fixing plate, vibration borne by the ball frame can be secondarily attenuated, the service life of the steel structure net rack support is prolonged, and the stability between net rack structures is enhanced. According to the scheme, the stress characteristic of a net rack support in the current market is effectively solved, and meanwhile the problems that a net rack structure is damaged and the durability is low due to vibration generated when the net rack structure is connected are solved. On the other hand, the net rack support is easy to connect and convenient to install, and does not consume time and labor.

The present invention relates to a separator, a method of preparing the same, and a secondary battery including the same, the separator including a porous substrate, a ceramic coating layer disposed on at least one surface of each surface of the porous substrate, and a positively charged self-assembled monolayer disposed on the ceramic coating layer.

The invention relates to the technical field of novel organic silicon materials and fine chemical engineering, in particular to redox response type cross-linked silicon paste containing fullerene and ferrocene groups as well as a preparation method and application of the redox response type cross-linked silicon paste. The preparation method of the cross-linked silicon paste comprises the following steps: adding a vinyl modified filler, a fullerene cross-linking agent and a resin cross-linking agent into carrier oil under a stirring condition, mixing, adding a catalyst, and carrying out a hydrosilylation reaction to form primary cross-linked silicon paste particles with an interpenetrating network structure; and adding a functional end-capping reagent and a catalyst, continuously reacting, and adding carrier oil after the reaction is finished. The cross-linking density is controllable, the mechanical strength is high, the surface hydrophilic and hydrophobic intelligent switching function is achieved, and intelligent conversion of hydrophilic easy emulsification during processing and hydrophobic strong foam inhibition during use is achieved. The organic silicon defoaming agent is applied to a defoaming agent, hydrophilic in an oxidation state assists emulsification, hydrophobic in a reduction state assists foam inhibition, and the contradiction that the emulsification stability and the foam inhibition durability of a traditional organic silicon defoaming agent are difficult to consider at the same time is solved.

The invention provides an anti-impact light-weight FRP parking apron structure which comprises structural columns arranged below a roof surface in a matrix mode, main beam connecting nodes corresponding to the structural columns are arranged on the roof surface, main beams are arranged between every two adjacent main beam connecting nodes in the front-back direction and the left-right direction, and the main beams and the main beam connecting nodes are spliced to form a panel supporting system. Platform panels are evenly laid on the top of the panel supporting system. The main beam connecting node is provided with a supporting short column which corresponds to the structural column and is fixedly arranged at the top of the roof surface, a high-damping rubber pad is arranged at the top of the supporting short column, a node short column is arranged at the top of the high-damping rubber pad, a component node is arranged at the top end of the node short column, and a connecting sleeve matched with the main beam is fixedly arranged on the side face of the component node; the end parts of the main beams are fixedly assembled in the corresponding connecting sleeves; the main beam and the platform panel are made of FRP materials. The self-weight is small, the influence on the original structure is reduced, the damage of accidental impact load is relieved, and the durability is improved.

The invention relates to the technical field of electric vehicles, and discloses a high-temperature charging control method and system for a pure electric vehicle, and the method comprises the following steps: responding to a charging gun connection signal, and obtaining the environment temperature of the environment where the vehicle is located and the initial cell temperature of a power battery; when the environment temperature exceeds a preset high-temperature threshold value and it is detected that the charging pile is in a fast charging mode, pre-cooling judgment logic is started, and a pre-cooling request is sent to a vehicle control unit; and a cooling instruction generated by the vehicle control unit based on the pre-cooling request is received and responded, and a cooling device is controlled to operate at the pre-cooling power lower than the rated power of the cooling device, so that the power battery is pre-cooled in the early stage of charging. According to the method, the temperature rise trend can be pre-judged, intervention can be intervened in advance, active thermal management is realized, and the contradiction between the limited fast charging speed and the service life loss of the battery in a high-temperature environment is fundamentally solved.