99 results about "Volumetric shrinkage" patented technology

The invention discloses an injection molding process parameter multi-objective optimization method based on a high-precision prediction model, and the method comprises the steps: carrying out the enhancement of data through MIC and GAN based on a simulation test result, so as to improve the quality of simulation data; then carrying out hyper-parameter tuning by using a KOA and IVYA mixed framework; then, an SHAP method is adopted to enhance the interpretability of the XGBoost model, and an optimized process parameter search range is provided; and finally, searching a Pareto leading edge of a quality target by applying MOCGO, and determining an optimal process parameter combination. Test results show that the buckling deformation and the volume shrinkage are respectively reduced by 35.7% and 10.1% by using the technological parameter combination optimized by the method disclosed by the invention, the buckling deformation and the volume shrinkage of the molded plastic part can be effectively reduced, so that a high-quality plastic part product is obtained, and the product quality is improved. And a theoretical basis and data support can be provided for obtaining an optimal process parameter combination of injection molding.

The invention discloses an anti-shrinkage liquid bridge plug material and a preparation method thereof, the liquid bridge plug material is prepared by taking a glue hardening agent, a bonding reinforcing agent and thermal expansion particles as raw materials, and the mass ratio of the glue hardening agent to the bonding reinforcing agent to the thermal expansion particles is (15-25): (65-70): (5-10). The preparation method comprises the following steps: mixing and stirring the glue hardener, the bonding enhancer and the thermal expansion particles according to the proportion, and curing in a drying oven to obtain the liquid bridge plug material. According to the invention, the thermal expansion particles are doped in the material and the solid connection monomer is modified, so that the volume shrinkage of the liquid bridge plug material in the curing process is successfully reduced, and the stability of the material is remarkably improved; and the adhesive property of the material is improved, the adhesive capacity of the material and the wall surface of a shaft or a leakage channel is enhanced, and challenges in fracturing and leaking stoppage construction can be effectively handled.

The invention discloses a high-performance mass concrete regulation and control method based on hydration heat and shrinkage control, and relates to the technical field of concrete regulation and control, and the method comprises the following steps: inputting a start response phase difference into a constructed collaborative entropy mapping model of a hydration heat release and volume shrinkage rhythm relationship based on a determined hydration start behavior asynchronous phenomenon, and obtaining a hydration heat release and volume shrinkage rhythm relationship; generating a synchronization parameter between the surface hydration heat release curve and the internal volume shrinkage curve to judge whether the concrete surface hydration heat release is matched with the internal shrinkage control rhythm or not; and according to a judgment result, calling a threshold hierarchical model to divide the concrete state into rhythm matching, moderate mismatching or serious mismatching, and obtaining a state grade result corresponding to the synchronization parameter. According to the method, the problem that concrete hydration starting behaviors are asynchronous and difficult to identify and regulate due to surface ventilation treatment is solved, and accurate matching and dynamic regulation and control of surface hydration heat and internal shrinkage rhythm are realized.

The invention discloses light-cured resin, a preparation method and application, and belongs to the technical field of light-cured 3D printing. The light-cured resin provided by the invention comprises the urethane acrylate oligomer, the modified acrylate oligomer and the reactive diluent, and the urethane acrylate oligomer can improve the toughness and reaction speed of the light-cured resin and reduce the volume shrinkage of the light-cured resin, so that the light-cured resin has good light-cured effect. The modified acrylate oligomer can improve the durability of the light-cured resin, adjust the hardness and toughness and reduce the volume shrinkage of the light-cured resin, and the reactive diluent can improve the hardness and toughness of the light-cured resin; the polyurethane acrylate oligomer, the modified acrylate oligomer and the reactive diluent are compounded, and the dosage of each component is limited, so that each component fully plays a synergistic role, and the light-cured resin has low volume shrinkage and high hardness, and keeps high toughness and durability at the same time.

The invention discloses a thin-wall shell plastic part injection molding process parameter multi-objective optimization method, which is based on an RIME-RF-MOGWO framework, takes a simulation sample as a research object, selects a volume shrinkage rate and a buckling deformation amount as optimization objectives, and firstly adopts SMOTE to process a data imbalance problem; establishing a nonlinear mapping relation between the process parameters and the quality target by using RF; an RIME is introduced to optimize the hyper-parameter of the RF; multi-objective optimization of process parameters is realized in combination with MOGWO, and a Pareto frontier solution set is obtained through non-dominated sorting and a congestion degree control mechanism. A multi-round optimization and simulation verification result shows that the multi-objective optimization method for the injection molding process parameters of the thin-wall shell plastic part can effectively obtain an optimal process parameter combination, the volume shrinkage rate is reduced by 19.02%, the buckling deformation amount is reduced by 50.63%, and the molding quality of the thin-wall plastic part can be remarkably improved.

The invention relates to the technical field of high-molecular polymer and epoxy resin compositions, and discloses a gold stamping layer special modified composition with a surface energy level adjusting characteristic, which comprises a branched chain-containing polarity adjusting factor, an interface energy adjusting enhancing factor with epoxy activity, a curing system and a special epoxy resin, the branch-chain-containing polarity regulation factor is composed of a molecular chain polarity center and a long alkyl branch chain, and in the process that a curing system and special epoxy resin are cross-linked to generate a volume shrinkage energy field, microphase separation and volume shrinkage stress are used for cooperatively driving the long alkyl branch chain to generate spatial conformation overturning; according to the method, the problem of surface polarity deficiency caused by dense crosslinking of epoxy resin is solved, spontaneous adjustment of the surface energy level of the modified layer is achieved, and sufficient intermolecular active sites are provided for spreading and infiltration of a subsequent coated polar functional medium.

The invention relates to the technical field of titanium alloy preparation and machining, and particularly discloses a method for preparing a titanium alloy workpiece through near-net forming of titanium hydride powder. The method comprises the steps that after titanium hydride powder and intermediate alloy powder are mixed, cold press molding is conducted under 200-800 MPa, and a pressed blank is obtained; sintering the pressed blank and the mold for the first time at the temperature of 500-1200 DEG C, preserving heat for 10-30 minutes, and then cooling; and the pressed blank is taken out of the mold, secondary sintering is carried out at the temperature of 1200-1400 DEG C, cooling is carried out after heat preservation is carried out for 2-4 hours, and a titanium alloy workpiece is obtained. The method does not include the step of partially dehydrogenating the titanium hydride powder before cold press molding. According to the method, the problem that the titanium hydride pressed blank is easy to crack during demolding is fundamentally solved through the first sintering with the mold by utilizing the volume shrinkage effect in the dehydrogenation process, so that the product percent of pass is greatly improved, and meanwhile, the low hydrogen content (llt of a workpiece is ensured; 0.015%), high density (greater than or equal to 99%) and uniform components.

The application provides a one-way sealing ring, a sealing mechanism, a tail pipe top packer and a tail pipe cementing process, wherein the one-way sealing mechanism comprises a center pipe, an upper deformed sleeve arranged on the outer wall of the center pipe, a lower deformed sleeve arranged on the outer wall of the center pipe, the upper deformed sleeve and the lower deformed sleeve being spaced apart in the axial direction, a sealing element arranged on the outer wall of the center pipe, the lower end of the sealing element being in abutment with the upper end of the lower deformed sleeve, an expansion cone arranged between the upper deformed sleeve and the sealing element, a sealing groove being arranged on the inner wall of the expansion cone in the circumferential direction, a sealing ring being arranged in the sealing groove, a flow-off groove being arranged on the inner wall of the expansion cone in the axial direction, the flow-off groove penetrating through the upper end and the lower end of the expansion cone, and fluid being allowed to flow only in one direction from the upper end of the expansion cone to the lower end of the expansion cone along the flow-off groove, while the fluid under the packer is allowed to flow upward, the wellhead annulus is allowed to be pressurized for cement setting, the pressure reduction caused by volume shrinkage is prevented to prevent the stratum fluid from flowing out, and the cementing quality is ensured.

The application discloses a single-component epoxy adhesive for magnetic core bonding, which comprises A) a rigid ring structure containing epoxy resin prepolymer, accounting for 30-60% of the total weight percentage of A-D; B) an organic silicon modified anhydride curing agent, accounting for 15-40% of the total weight percentage of A-D; C) a liquid anhydride curing agent, accounting for 15-42% of the total weight percentage of A-D; D) a curing accelerator, accounting for 0.5-5% of the total weight percentage of A-D; and E) glass microbeads, accounting for 5-30% of the total weight percentage of A-D. The adhesive has the characteristics of high adhesion, good heat resistance, low linear thermal expansion coefficient, low curing volume shrinkage, excellent wet heat resistance and excellent heat shock resistance, and can form a bonding layer with high uniformity in thickness between the magnetic cores.

The invention provides a preparation method of a fiber-reinforced nylon composite material and the fiber-reinforced nylon composite material prepared by the preparation method.The preparation method comprises the steps that S1, caprolactam is divided into a component A and a component B, and the caprolactam is heated, melted and dehydrated; s2, mixing the component A with a catalyst to obtain a component A1, mixing the component B with an activator to obtain a component B1, and dehydrating the component A1 and the component B1; and S3, mixing the component A1 and the component B1, injecting the mixture into a mold cavity in which a fiber reinforcement is preset at high pressure, and carrying out pressure-maintaining curing molding under the conditions that the pressure of high-pressure injection is 50-160 bar, the pressure of pressure maintaining is 1200-2400 T, the time is 3-8 minutes, and the temperature of the mold cavity is 140-180 DEG C. The nylon composite material prepared by the invention can fully infiltrate fibers, and meanwhile, the volume shrinkage of the nylon composite material is reduced.

The invention belongs to the technical field of tin alloy target material pouring, particularly relates to a tin alloy target material pouring method and equipment for inhibiting shrinkage cavity and composition segregation, and provides the following scheme aiming at the core problems of volume shrinkage and composition segregation during solidification, easy target material shrinkage cavity, shrinkage porosity and nonuniform composition in tin alloy pouring: a vacuum induction melting furnace is adopted; a feeding box is arranged at the top end of the vacuum induction melting furnace, an out-furnace pipeline is fixedly connected to the outer side of the vacuum induction melting furnace, and an external furnace is arranged at the bottom end of the out-furnace pipeline. The tin alloy target material pouring method and equipment for inhibiting shrinkage cavities and composition segregation have the advantages that the pressure sealing cake applies constant low-pressure mechanical pressure to melt in the mold, the melt is forced to continuously shrink and feed in the solidification process, gaps formed by volume shrinkage are directly filled, shrinkage cavities and shrinkage porosity are reduced to the maximum extent, and the casting quality of the tin alloy target material is improved. And the use effect of the internal density of the target is improved.

The application discloses a kind of based on high-precision prediction model injection molding process parameter multi-objective optimization method, based on simulation test result, first by MIC and GAN to data is enhanced, to improve the quality of simulation data;Then utilize the mixed framework of KOA and IVYA to carry out hyperparameter tuning;Subsequently adopt SHAP method to enhance the explainability of XGBoost model, and provide the search range of optimized process parameter;Finally, application MOCGO finds the Pareto front of quality target, and determines optimal process parameter combination.Test results show that, using the process parameter combination optimized by the method of the application makes warping deformation and volume shrinkage rate reduce by 35.7% and 10.1% respectively, can realize effectively reduce the warping deformation and volume shrinkage rate of forming plastic part, and then obtain high-quality plastic product, can provide theoretical basis and data support for obtaining injection molding optimal process parameter combination.

The invention relates to the field of roll core pipes, aims at solving the problem that an existing roll core pipe is insufficient in bending resistance, and provides a plastic roll core pipe which comprises a tubular base body and filling particles embedded in the tubular base body. The tubular base body is cooled to 5-45 DEG C from the melting temperature, and the volume shrinkage rate of the filling particles is larger than that of the tubular base body; the melting point of the filling particles is higher than that of the tubular base body. The cooling process of the product after melt extrusion molding is utilized, controllable pores are formed in the core winding pipe, the porosity of the pipe body is controlled after the base material and the filling particles are specifically selected, the bending resistance of the core winding pipe is improved, and the weight can be reduced to a certain degree; the carbon fibers and the tubular base body are chemically combined, so that the mechanical performance of the roll core tube can be integrally improved, the performance degradation of the roll core tube after long-term storage is reduced, and the influence of the addition of the carbon fibers on the regulation and control of the overall porosity of the tube body in the cooling process can be reduced or avoided.

This invention discloses a polyvinyl alcohol-based radiation-cooled porous material and its preparation method, belonging to the field of new materials. The material is prepared from a foaming system comprising an aqueous solution of polyvinyl alcohol, hydrophilic silica, a shrinkage-reducing agent, a foam stabilizer, polyethyleneimine, epichlorohydrin, and sodium dodecyl sulfate, through mechanical stirring foaming, heating curing, and atmospheric pressure drying. This invention effectively suppresses defects such as volume shrinkage, internal cracking, and skin separation in porous materials under atmospheric pressure drying conditions through the synergistic effect of the shrinkage-reducing agent and the foam stabilizer, avoiding the complex process of traditional freeze-drying. The porous material possesses both a high solar reflectivity of 93%–98% and an average infrared emissivity of over 97% within the 8–13 μm atmospheric window, enabling a cooling effect 10–20°C lower than ambient temperature without consuming additional energy, thus possessing significant practical application value.

The invention relates to an intelligent measuring device and method for concrete volume shrinkage, the device comprises a pressure sensing plate, a longitudinal distance measuring device and a data processing center, the pressure sensing plate is transversely placed on a plane and located below a concrete test block, and micro pressure sensors are arranged on the pressure sensing plate in an orthogonal direction; the longitudinal distance measuring device comprises a scale measuring rope, a tension sensor, a fixed flat plate, a top plate and an automatic adjusting motor, the bottom end of the scale measuring rope is fixed on the top surface of the concrete test block, the middle section of the scale measuring rope penetrates through a preformed hole in the fixed flat plate, the top end of the scale measuring rope is fixed on the tension sensor, and a length probe is arranged in the preformed hole of the fixed flat plate; the length probe acquires the length reading of the scale measuring rope on the fixed flat plate in real time, an automatic adjusting motor is fixed on the top plate, and the top of the tension sensor is connected with the automatic adjusting motor; and the data processing center can receive various basic data acquired by the pressure sensing plate and the longitudinal distance measuring device in real time.

Disclosed in the present invention are a lignin-based acrylate prepolymer, a composite prepolymer containing the lignin-based acrylate prepolymer, an adhesive composition comprising the composite prepolymer containing the lignin-based acrylate prepolymer, a preparation method, and a use. The adhesive of the present invention has good adhesion firmness, small volume shrinkage, and good flexibility and chemical resistance, has the advantages of cheap and easily available raw materials, environmental protection and the like, and has industrial application potentials.

The invention relates to the technical field of new energy automobile accessories, in particular to a new energy relay shell and an additive mixing manufacturing method thereof. Performing array printing on the outer surface of the functional skeleton to generate a preset directional deformation assembly, and performing integrated printing in the functional skeleton to generate a three-dimensional variable cross-section arc extinguishing flow channel; scanning and activating the surface of the functional skeleton by adopting a plasma beam, and then depositing a silane coupling agent layer; putting the functional framework into an injection mold, and injecting a thermoplastic engineering plastic melt into the mold; the pressure of the mold cavity is maintained until the temperature of the injection molding layer is reduced to be lower than the crystallization temperature, the deformed preset directional deformation assembly is fastened through the volume shrinkage rate of the injection molding layer, the thin plate is induced to be directionally bent through the heat flow deformation technology, and dynamic mechanical counterforce balance is formed through the rebound potential energy of the thin plate and the shrinkage force of the injection molding layer. And the IP67 protection requirement of the high-voltage relay of the new energy automobile is met.

The application relates to a forming method of a polymer-based composite material, comprising the following steps: S1: placing a frame substrate in a forming mold, the forming mold being matched with the shape of the frame substrate, and the forming mold being provided with an impregnation solution; the impregnation solution comprising a polymer monomer and an initiator; S2: placing the forming mold provided with the frame substrate and the impregnation solution in a heating device, and performing a thermal initiation and a prepolymerization reaction at a first temperature to obtain an intermediate; S3: placing the obtained intermediate and the forming mold on a lifting platform, and driving the forming mold to slowly enter a solidification device at a speed of 1mm / h-5mm / h until the forming mold is completely placed in the solidification device; and then, heat preservation is carried out at a second temperature, so that the polymer monomer is completely polymerized to obtain a polymer-based composite material. The application controls the shrinkage direction of the polymer monomer polymerization, and avoids the volume shrinkage defect of the polymer-based composite material after forming.

The present application belongs to the technical field of composite material quality control, and relates to a kind of plate performance prediction and control method based on basalt fiber mat quality detection, the mat is detected with surface density, surface density uniformity, thermoplastic fiber content and dispersion degree and other indexes;Combined with the influence of the residual rate of the impregnating agent on the odor and VOC emission of the plate;Establish a performance prediction model based on multiple linear regression, which is used to predict the thickness control accuracy, volume shrinkage, mechanical properties and environmental protection indexes of the plate;Based on the model results, the process conditions such as layering method and hot pressing parameters are adjusted in real time to realize closed-loop control of performance. This method realizes the accurate mapping and feedback control of raw material quality on the terminal performance, can control the plate thickness accuracy within ±0.3mm, the volume shrinkage within 0.5%-2.0%, the mechanical property fluctuation is small, the odor grade is <3, and the VOC emission is low. This method significantly improves the performance stability of the plate and reduces the scrap rate.

The invention belongs to the technical field of concrete, and particularly relates to full-period low-shrinkage ultra-high-performance concrete and a preparation method thereof. The full-period low-shrinkage ultra-high-performance concrete is prepared from 900-1110 parts of quartz sand, 600-700 parts of cement, 100-200 parts of silica fume, 200-250 parts of fly ash microspheres, 80-120 parts of steel fibers, 20-40 parts of a montmorillonite modified shrinkage reducing type water reducing agent, 5-10 parts of polyvinyl alcohol fibers, 30-50 parts of a composite expanding agent and 300-400 parts of water. According to the time-sharing shrinkage-inhibiting composite expanding agent disclosed by the invention, the full-time volume stability of concrete is improved, the volume shrinkage of set cement is greatly reduced, and the problem that the shrinkage of ultra-low water-binder ratio concrete is large is fundamentally solved.

The application discloses a preparation method of a special filling wax material for aerospace titanium alloy parts, which comprises paraffin wax, microcrystalline wax, resin, heat stabilizer, chitosan, stearic acid, initiator, maleic anhydride and filler, wherein the resin is polystyrene. Compared with the prior art, the special filling wax material for aerospace titanium alloy parts in the application uses paraffin wax and microcrystalline wax as main raw materials of the filling wax material, so that the rigidity, strength and thermal stability of the filling wax material can be increased, the volume shrinkage rate after temperature change in the processing process can be reduced, the shrinkage degree after solidification of the filling wax can be reduced, and the size stability of the filling wax is improved.

The present invention provides a preparation method of a cryogenic adiabatic composite material, comprising the following steps: A. preparing a formed fiber felt by mixing 10 - 40 parts of calcium hydroxide and 5 - 15 parts of iron oxide powder with 100 parts of fibers; B. immersing 50 - 100 parts of silica sol into the obtained felt material, and subjecting it to high-temperature steam curing to fully react calcium hydroxide, iron oxide and silica sol; C. immersing a silicone oil emulsion into the felt material, and baking it to decompose and volatilize the water-soluble emulsifier, thereby obtaining the composite material. This method has low production cost, and the prepared product has stable structure at low temperature, low volume shrinkage rate and good adiabatic performance, meeting the requirements of cryogenic adiabatic.

Provided are fine silver particles which are suppressed in volume shrinkage and have high conductivity. The silver microparticles have a particle diameter of 0.1 [mu] m or more and 1 [mu] m or less as measured by a BET method, a volume resistance value of 10 [mu] Omega * cm or less after being fired in the atmosphere at a temperature of 150 DEG C for 1 hour in a particulate state, and a volume shrinkage of less than 5%.

The invention discloses a low-shrinkage polyurethane material, a preparation method and application of the low-shrinkage polyurethane material in heat preservation of building materials. Spherical foam holes are formed in cooperation with gradient temperature rising and pressure rising, a round hole structure generated by a foaming body is utilized and cured, the round hole structure is prevented from being stretched to be of a through hole structure, and therefore the heat preservation performance of the building materials is improved. The foam hole wall is controlled to be slowly cured through low-temperature micro-negative-pressure treatment to form a stable initial bearing frame, and air pressure inside and outside the foam holes is dynamically balanced through gradient pressure increasing and temperature increasing curing, so that the dissipation rate of the foaming agent is matched with the cross-linking curing rate; the vacuum shrinkage phenomenon caused by sudden drop of internal pressure in conventional constant-temperature curing is avoided, meanwhile, the cell wall is controlled to be fully cured in a slow stress environment, and the volume shrinkage rate of the foaming body is further reduced.

The invention provides a high-consistency molding method of an injection molding product, and aims to solve the technical problem that a constant-pressure and pressure-maintaining mode of an existing injection molding process only depends on a single-point pressure signal and cannot sense density distribution and local shrinkage of a mold cavity in real time, so that the dimensional precision of a precise injection molding product is poor. The method comprises the steps that through CAE mold flow simulation, the optimal specific volume of a product is set with the minimum volume shrinkage standard deviation as the target; ultrasonic sensing units are mounted at a pouring gate, the middle part and a flowing tail end of a mold cavity to detect real-time sound velocity; the temperature and pressure drop of each point in the pressure maintaining process are confirmed in a CAE simulation mode; the inherent adiabatic bulk modulus of the polymer is combined to realize direct detection of the multi-point specific volume of the polymer melt; and the dwell pressure required by the equal specific volume is calculated in real time by using the corrected polymer double-domain Tit equation, so that the equal specific volume control of the melt is realized in the whole dwell stage. According to the method, on the basis that a product cavity is not changed, uniform shrinkage of all areas of the product is achieved through pressure maintaining and stepless pressure regulation, and the size precision of the product is improved.

An object of the present invention is to provide a method for manufacturing a porous body, the method making it possible to suppress volume shrinkage during drying at a pressure of 102 Pa or more and 106 Pa or less, and to obtain a porous body with a high porosity; and a porous body. The present invention is a method for manufacturing a porous body, the method including subjecting a gel that has a solvent including water and a structure body with a three-dimensional mesh structure to a drying treatment to produce a porous body, in which the drying treatment is carried out at a pressure of 102 Pa or more and 106 Pa or less and a temperature equal to or higher than a boiling point of the solvent such that an internal temperature of the gel is equal to or higher than an external temperature of the gel.

The invention discloses a preparation method of an acrylic resin curing block for a DVP test, and belongs to the technical field of resin curing. According to the preparation method provided by the invention, the thermal stress concentration and volume shrinkage in the curing process are effectively inhibited by regulating and controlling the resin curing reaction rate and adopting multi-stage processes such as pretreatment, stepped curing and post-treatment, and the high-quality resin cured block with smooth surface, neat edge and no internal crack or bubble defect is successfully prepared; and the structural integrity and the test reliability of the material are remarkably improved.

The invention relates to the technical field of coating preparation, and discloses a conductive variable-temperature coating and a preparation method thereof.The preparation method comprises the steps that a hysteresis type solvent diffusion field is established, and the diffusion coefficient of a solvent in a microcapsule shell is limited in a non-equilibrium state interval through the steric hindrance effect; constructing a skin-core gradient modulus interface which is soft outside and hard inside, and partially embedding the multi-walled carbon nanotubes into the outer surface of the shell in a viscoelastic state by utilizing radial counter-acting force provided by a glassy-state framework in the shell; injecting deionized water to induce vitrification shrinkage of the surface of the shell, and generating volume shrinkage stress to mechanically occlude and fix the multi-walled carbon nanotubes; according to the preparation method disclosed by the invention, a mechanically-interlocked conductive network is constructed on the surface of the microcapsule through a non-equilibrium state gradient plasticizing and quenching locking process, so that the problems that the microcapsule is easy to damage and the conductive filler is easy to fall off in a traditional blending process are solved.

This invention discloses a multi-objective optimization method for injection molding process parameters. First, simulation results datasets are obtained based on Moldflow simulation analysis and CCF. Then, an injection molding quality optimization model is constructed using NGO-XGBoost. Next, the SHAP method is used to interpret and analyze the NGO-XGBoost model, obtaining the importance and positive / negative impact of each optimization design variable on the predicted quality optimization objective. The Pareto front is obtained through multi-objective optimization using MOMVO. Finally, the optimal combination of process parameters is determined using the CRITIC-TOPSIS evaluation method. This invention can effectively reduce the warpage and volume shrinkage of ABS plastic injection molded parts, thereby obtaining high-quality ABS plastic products. It provides a theoretical basis and data support for obtaining the optimal combination of process parameters for ABS plastic injection molding.

Provided in the present application are an adhesive, a bonding structure and a structural component. The adhesive comprises an adhesive filler having an expandable volume, and the adhesive filler comprises a spherical polymer material having a pore structure. During the curing reaction process of the adhesive, the shape of the polymer material can be gradually restored, and the volume of the adhesive filler can be expanded to a certain extent, such that the volume shrinkage caused by a resin main agent, etc. of the adhesive during the curing reaction process can be compensated to a certain extent, and the curing volume shrinkage rate of the adhesive is reduced. The curing volume shrinkage rate of the adhesive containing the adhesive filler is low, the deformation, displacement, internal stress, etc. caused during the curing reaction process are lower, the structure of a structural member using the adhesive is reliable, and the function of a device is stable.