140 results about "Resin bonding" patented technology

The invention relates to conductive silver paste and a preparation method thereof, and relates to the technical field of low-temperature curing type conductive paste, the conductive silver paste comprises the following components: multi-dimensional micro-nano conductive silver powder, surface conductive type liquid metal nanoparticles, a multi-system organic resin binding phase, a closed curing agent, a mixed organic solvent and various additives; wherein the mass part of each component is as follows: the mass part of the multi-dimensional micro-nano conductive silver powder is 60-90; the mass part of the surface conductive liquid metal nanoparticles is 5-10; the mass part of the multi-system organic resin binding phase is 0.1-10; the mass part of the closed curing agent is 0.1-5 parts; the mass part of the mixed organic solvent is 5-20; the mass part of each additive is 0.1-10 parts. The bending resistance, the adhesive force and the fatigue resistance of the conductive silver paste are improved.

The application relates to the technical field of integrally-formed inductors, in particular to a moisture-resistant soft magnetic composite material and a preparation method thereof and an integrally-formed inductor. The moisture-resistant soft magnetic composite material comprises the following components by mass: 100 parts of soft magnetic powder, 2-5 parts of a resin bonding agent and silicon resin, wherein the mass ratio of the silicon resin to the resin bonding agent is (0.3-2.0):100. The moisture-resistant soft magnetic composite material can avoid the phenomenon of explosion of the integrally-formed inductor during a reflow soldering process after moisture absorption.

The invention relates to a light-cured dental resin adhesive containing a silane coupling agent modified monomer as well as preparation and application of the light-cured dental resin adhesive. The dental resin adhesive comprises a resin matrix, an organic polymer and a photoinitiator, wherein the resin matrix consists of methacrylate resin grafted and modified by a silane coupling agent and unmodified methacrylate resin. According to the method, the isocyano group of the silane coupling agent is selected to react with the hydroxyl group on the resin monomer to generate the silane modified grafted resin monomer, and the method is simple, low in equipment requirement and suitable for large-scale production; the obtained dental resin adhesive can be internally covalently cross-linked to enhance the self mechanical property, can also be chemically bonded with a bonding substrate by utilizing a grafted silane coupling agent to improve the interface bonding strength, is especially suitable for being used as an enamel bonding material, and can remarkably improve the service life and the curative effect of a bonded restoration.

The invention discloses a low-heat efficient steel rail cutting blade for railway steel rail cutting and a manufacturing method of the low-heat efficient steel rail cutting blade, and belongs to the technical field of tools for grinding, polishing or cutter grinding. The low-heat efficient steel rail cutting blade is prepared from the following raw materials in parts by mass: 100 to 135 parts of grinding material, 10 to 20 parts of resin adhesive, 20 to 30 parts of functional filler, 4 to 8 parts of self-lubricating pore-forming material and 3 to 5 parts of wetting agent. The steel rail cutting fluid has good cutting performance and anti-burn performance, 60 # steel rails can be cut at a time within 90 s, it is guaranteed that no obvious burn exists on the cutting face, and the steel rail cutting machining tolerance requirement is met.

The invention provides a composite material oil tank and a manufacturing method thereof, relates to the technical field of composite material oil tanks, and greatly simplifies the mold manufacturing and assembling process through the integrated design of a modular numerical control mold and a three-dimensional digital model. The die purchasing and processing cost is greatly reduced through partition die assembly and reuse of the supporting prosthesis, repeated investment of a special core die is avoided through accurate matching of the silicone rubber soft die and the air bag, and the laying quality of corners and narrow parts is improved. Through cooperation of two times of curing and a stepped lap joint structure, defects of fiber wrinkles, cavities, bridging and the like are effectively eliminated, and fiber continuity and resin bonding strength of a complex curved surface area are ensured. The finally formed composite material oil tank shell not only has excellent mechanical properties of high strength, high rigidity and light weight, but also has excellent sealing performance and durability, and an efficient and reliable solution is provided for large-scale application of a composite material oil tank with a complex structure.

The invention relates to the technical field of mechanical engineering, and discloses a special valve sealing element integrated machining process which comprises the following steps: S1, carrying out ultrasonic cleaning on a high-performance stainless steel or titanium alloy base material to remove oil stains and impurities on the surface; s2, performing one-time rough machining on the outer circle, the inner hole and the end face of the base material by using a five-axis numerical control lathe; s3, the multiple sealing elements are connected into a whole through TIG welding or high-strength epoxy resin bonding; s4, a numerical control grinding machine is adopted for conducting finish machining on the sealing face, and polishing liquid is matched with an automatic polishing machine to enable the surface roughness to meet the design requirement; an anti-corrosion coating is sprayed on the sealing surface according to use requirements; and S5, ultrapure water in a dust-free room environment is adopted for cleaning and drying, and then a pressure sealing test, a temperature resistance test and a corrosion resistance test are conducted. Through TIG welding, hot press molding and X-ray nondestructive testing, connection of multiple parts on the molecular level is achieved through the technology, and defects at joints are reduced.

The purpose of the present disclosure is to provide a curable epoxy composition for dynamo-electric machines, the curable epoxy composition being able to be easily bonded to a PEEK resin, and being able to be suppressed in separation during use. An epoxy composition for dynamo-electric machines according to the present disclosure is characterized by containing an epoxy compound (A), an acid anhydride-based curing agent (B), and an amine-based curing accelerator (C), and is also characterized by being in a liquid state at 25°C, having a viscosity of 3,000 mPa∙s or less at 25°C, and having a bonding strength to a PEEK resin of 2.5 N / cm2 or more when cured. In addition, it is preferable that the viscosity increase rate is 20,000% or less before and after a storage test that is carried out at a temperature of 23 ± 5°C and a humidity of 50 ± 5% for 41 days.

The invention belongs to the technical field of electronic cloth, and particularly relates to slurry for low-dielectric fiber cloth as well as a preparation method and application of the slurry. The slurry for the low-dielectric fiber cloth is prepared from the following components in percentage by mass: 3.0 to 4.0 percent of vinyl alcohol polymer, 1.0 to 2.0 percent of ethylene oxide polymer, 0.1 to 0.3 percent of lubricating agent, 0.1 to 0.3 percent of dispersing agent, 0.1 to 0.3 percent of antistatic agent, 0.1 to 0.2 percent of coupling agent and the balance of pure water. According to the sizing agent for the low-dielectric fiber cloth, a low-polarity auxiliary agent system is adopted, the abrasion resistance of a sizing agent film and the stability of a sizing agent system are improved, fiber hairiness is reduced, the prepared electronic cloth is good in fiber dispersity and high in resin binding force after being subjected to high-temperature desizing, the use requirement of a high-speed PCB is met, and the reliability and CAF resistance of the electronic cloth in a severe environment can be improved; the invention also provides a preparation method thereof.

The invention discloses sub-nanowire modified resin as well as a preparation method and application thereof, and belongs to the technical field of biological medicines. The resin comprises sub-nanowires and a resin matrix, and solves the problem of poor adhesion caused by excessive hydration of an adhesion interface in clinical operation. Meanwhile, through the multi-stage interaction between the resin matrix and the sub-nanowires, the cohesive stability of the resin and the adhesive property of the resin can be improved at the same time. The resin disclosed by the invention can be applied to the fields of tooth restoration and the like, in particular to the aspects of tooth bonding, filling and the like.

The application is suitable for the technical field of power distribution equipment, and particularly provides a transformer, which comprises a magnetic ring, a wire and a framework; the surface of the magnetic ring is coated with an insulating material; the wire is wound on the magnetic ring, and the wire is wrapped with three insulating layers; the framework comprises a stand for bearing the magnetic ring, the stand is provided with a groove for accommodating the magnetic ring, the magnetic ring and the groove are fixed by epoxy resin bonding, the framework further comprises a terminal block arranged at the end of the stand, the terminal block comprises a metal pin for connecting with the wire, and the stand is further provided with an accommodating groove for accommodating the wire when the wire is connected with the metal pin. The technical problems of poor anti-vibration and anti-impact performance, unfirm structure, low working temperature, easy thermal expansion of the wire and poor environmental adaptability of the existing transformer are solved.

The invention relates to the technical field of X-ray detection, in particular to an optical system based on X-ray detection bent crystals. Compared with a traditional 316L stainless steel or epoxy resin bonding structure, the aluminum foil-carbon fiber / polyimide-316L stainless steel composite vacuum cavity provided by the invention shows remarkable comprehensive performance advantages. The X-ray detector has the core advantage of extremely low thermal expansion coefficient, so that the X-ray detector can still maintain submicron precision in a wide temperature range, and the positioning error caused by temperature change of a traditional metal cavity is avoided. Meanwhile, according to the structure, multiple layers of aluminum foils and carbon fibers are alternately laminated to be matched with reactive polyimide resin, an efficient sealing barrier is formed, long-term stability of ultrahigh vacuum is ensured, the air leakage risk is greatly reduced, and the service life is prolonged.

The present invention provides a wave-absorbing honeycomb core material and a wave-absorbing honeycomb core sandwich structure. The wave-absorbing honeycomb core material includes a honeycomb matrix, a resin bonding portion and a wave-absorbing material, wherein the resin bonding portion fixes the wave-absorbing material on the honeycomb matrix, and the wave-absorbing material is a surface-metallized hollow glass microsphere. The present application uses metallized hollow glass microspheres to replace the dielectric material and ferromagnetic material commonly used in wave honeycomb core materials in the prior art as wave absorbers. The metal-coated hollow glass microspheres have the advantages of low density and large specific surface area, and the hollow structure formed by loading the metal on the surface of the hollow glass microspheres has a thin metal coating on the one hand, which can effectively reduce the skin effect caused by the metal material, so that the electromagnetic waves can enter the interior of the wave-absorbing material, effectively improving the magnetic loss; on the other hand, after the electromagnetic waves enter the hollow microspheres, they will be reflected multiple times inside, further improving the absorption rate of the electromagnetic waves, thereby effectively improving the low-frequency wave absorbing performance.

The utility model discloses a transformer copper bar fixing plate which comprises a copper bar fixing part which comprises a front laminated board, a rear laminated board and resin bonding glue. The front surface of the resin adhesive is adhered to the inner side surface of the front laminated board, the inner side surface of the rear laminated board is adhered to the back surface of the resin adhesive, and the front laminated board and the rear laminated board are both made of hot-pressed polyester resin plastic; the connecting part comprises a connecting port, a connecting pipe and a connecting ring; the connecting ports are formed in the middle of the front face of the front laminated board and penetrate through the rear laminated board, the connecting pipes are arranged in the connecting ports, and the connecting rings are symmetrically arranged at the front ends and the rear ends of the connecting pipes in a threaded mode. The problems that in the installation and use process of an existing transformer copper bar, laminated wood is generally selected for fixing, when the transformer is short suddenly, the laminated wood can be broken, the copper bar clamping effect of the laminated wood is invalid, and therefore the transformer is burnt out, cost is increased, and safety risks are increased are solved.

The novel large-span steel bridge deck pavement structure comprises a steel bridge deck slab, an anti-corrosion layer, a bonding layer, a waterproof layer, a drainage layer, a protection layer and a wearing layer are sequentially laid on the steel bridge deck slab from bottom to top, the bonding layer is a hot melting type epoxy resin bonding layer, a drainage groove is formed in the top of the drainage layer, and the protection layer is arranged in the drainage groove. The protective layer is made of cast asphalt concrete, the wearing layer is made of high-performance asphalt concrete, premixed asphalt macadam is embedded in the protective layer, and modified emulsified asphalt tack coat oil is spread between the protective layer and the wearing layer. The utility model provides a novel large-span steel bridge deck pavement structure which is provided with an anti-corrosion layer, a hot-melt epoxy resin bonding layer, a waterproof layer, a drainage layer, a protection layer and a wearing layer, provides an effective protection system for a steel bridge deck, and provides a durable bridge deck with good driving performance for a bridge.

The utility model relates to a composite lining structure for repairing a pipeline. The composite lining structure is provided with a repairing sheet body which is adhered and fixed at a damaged part of the pipeline, the repair patch body sequentially comprises a glass fiber layer, a strong core felt layer and a carbon fiber layer from the outer layer to the inner layer; the glass fiber layer is adhered and fixed with the inner wall of the pipeline through the resin bonding layer, or the glass fiber layer is adhered and fixed with the inner wall of the pipeline after being infiltrated with resin; the core-strengthening felt layer is adhered and fixed with the glass fiber layer after being infiltrated with resin; the carbon fiber layer is adhered and fixed with the strong core felt layer after being infiltrated with resin; the repairing patch body is adhered and fixed at the damaged part of the pipeline to form a cylindrical barrel. The water-proof and anti-seepage wall is light in weight, small in adhesive consumption, capable of achieving the effects of resisting negative pressure, underground water pressure and internal water pressure, and meanwhile good in anti-seepage performance, corrosion resistance and abrasion resistance.

The invention discloses a stainless steel roller efficient accurate grinding ceramic grinding wheel and a preparation method thereof, and the stainless steel roller efficient accurate grinding ceramic grinding wheel comprises the following components in parts by weight: 100 parts of grinding material; 10-25 parts of a ceramic bonding agent; 5-20 parts of a pore forming agent; 3-6 parts of a resin binder; wherein the grinding material is a large-particle silicon carbide micro powder accumulation body prepared by adopting a ceramic bonding agent, has the characteristics of a micro grinding tool, and has three elements of the grinding material, the bonding agent and air holes, and the resin bonding agent is a mixture of low-viscosity phenolic resin liquid and alcohol in a ratio of 1: 1 or 1: 2. The grinding material provided by the invention has structural uniformity, micro-cutting-edge cutting performance, micro-crushing performance of micro-grains falling off along grain boundaries and good self-sharpening performance, a ceramic grinding wheel prepared from the grinding material has the advantages of more uniform organization structure, high strength, good shape retentivity and the like, and the grinding efficiency is greatly improved under the condition that the grinding precision is ensured. And the grinding efficiency is high, the single feed amount is large, the finishing interval is short, and the service life is long.

According to the high-heat-conductivity aluminum-based copper-clad plate and the preparation method thereof, the heat conductivity coefficient reaches 5.9 W / (mK), and the peel strength is larger than or equal to 1.2 N / mm. A high-heat-conductivity aluminum-based copper-clad plate comprises an aluminum substrate, a copper foil and a heat-conducting glue layer located between the aluminum substrate and the copper foil, a first resin bonding layer is arranged between the aluminum substrate and the heat-conducting glue layer, and a second resin bonding layer is arranged between the copper foil and the heat-conducting glue layer; the thickness of the first resin bonding layer and the thickness of the second resin bonding layer are respectively 5-10 microns; the filling amount of the heat-conducting filler in the heat-conducting glue layer is about 70-85% of the volume of resin in the heat-conducting glue layer, the resin of the heat-conducting glue layer is epoxy resin and phenolic resin, and the resin of the first resin bonding layer and the second resin bonding layer is at least one of epoxy resin and phenolic resin.

The invention relates to the cross technical field of layered products, grinding tools and polymer compositions, in particular to plant fiber reinforced environment-friendly degradable abrasive cloth which comprises a plant fiber reinforced substrate layer, a primer bonding layer, an abrasive particle layer and a composite adhesive protective layer. According to the abrasive cloth, natural plant fibers serve as a framework, a bio-based resin bonding system is compounded with an inorganic abrasive material, the biodegradation rate of 90% or above can be achieved within 90 days under the composting condition, and meanwhile the tensile strength and the grinding performance are not lower than those of traditional petroleum-based abrasive cloth.

The invention provides a polyurea-imide prepolymer and PEEK / PTFE self-lubricating fiber fabric composite material as well as preparation and application thereof, and relates to the technical field of lubricating materials. The preparation method of the polyurea-imide prepolymer is inspired by distribution of soft and hard segments of dragonfly wings, diisocyanate is introduced into resin as a soft segment, and fluorine-containing diamine and dianhydride are used as hard segments, so that the situation that the resin is relatively weak in adhesion or has no adhesion due to fluorine elements can be avoided, and the service life of the resin is prolonged; and a micro-phase separation structure can be constructed, so that the mechanical property and the thermal stability of the resin are enhanced. The polyurea-imide prepolymer prepared by the preparation method disclosed by the invention has excellent adhesive property and high temperature resistance. The PEEK / PTFE self-lubricating fiber fabric composite material provided by the invention has excellent mechanical properties and tribological properties, has excellent friction and wear properties in a light-load and high-speed state, and can be used as a lubricating layer to prolong the use stability and prolong the service life of a moving part.

The present application can obtain a metal-resin bonded body having a high bonding strength while maintaining the shape of a synthetic resin member that is pre-formed into a prescribed shape. In a method of manufacturing a metal-resin bonded body 30 obtained by bonding a metal member 20 and a synthetic resin member 10, the following processes are performed: a first process of bringing a metal bonding surface 22 heated to a first temperature T1 and a resin bonding surface 12 into contact and pressing the metal member 20 and the synthetic resin member 10 with a first pressure P1; and a second process of pressing the metal member 20 and the synthetic resin member 10 with a second pressure P2 higher than the first pressure P1 at a second temperature T2 lower than the first temperature T1.

This invention discloses a wet-process carbon fiber paper-based composite friction material and its preparation method, belonging to the field of friction material technology. The material, by mass percentage, comprises 30%-50% reinforcing fiber skeleton, 25%-40% resin bonding matrix, 5%-15% functional filler, and the remainder being process aids and pores. The reinforcing fiber skeleton is composed of surface-modified carbon fibers and at least one hybrid high-performance fiber. The key to its preparation method lies in employing a programmed hot-pressing curing process including a "pressure reduction-heating" stage. By precisely controlling the balance between resin viscosity, foaming gas pressure, and curing rate, a multi-level porous structure characterized by low-torsion through-holes is constructed in situ within the material. This invention effectively solves the problems of rapid thermal decay of the friction coefficient and high wear rate caused by weak interfacial bonding and uncontrollable pore structure in traditional paper-based friction materials, achieving a synergistic improvement in high and stable friction performance, excellent wear resistance, and heat resistance, making it suitable for high-end wet transmission systems.

The invention provides a novel kneading machine for fine chemical engineering resin adhesive production, and relates to the technical field of resin bonding, the novel kneading machine comprises a piston sleeve mounted on a synchronous frame, a piston rod is slidably connected in the piston sleeve in a sealed mode, an energy storage spring is mounted at the lower end of the piston rod, and a pressing block is connected to the lower end of the energy storage spring; the pressing block is slidably connected into the box body, the upper end of the piston sleeve is communicated with a pressure maintaining pipe, a one-way ring is installed in the pressure maintaining pipe, a one-way ball is installed at the lower end of the one-way ring in an attached mode, and a telescopic pipe coaxial with the pressure maintaining pipe is installed in the one-way ball. The most remarkable innovation of the kneading machine lies in that the pressure adjusting mechanism is introduced, the pressure can be automatically adjusted in different stages of the resin kneading process, in the initial stage of kneading, the system applies large pressure to raw materials through the energy storage spring and the piston assembly, sufficient contact and initial reaction among molecules are promoted, and the design conforms to the resin kneading rule.

The invention discloses a preparation method of an anti-cracking mould pressing inductor, which is characterized by comprising the following preparation steps: S1, mixing an organic resin adhesive, a nanoscale material, a solvent and a soft magnetic material to prepare a soft magnetic composite material; and S2, granulating the soft magnetic composite material, and drying to remove the solvent to obtain the required finished product soft magnetic composite powder. The method has the beneficial effects that the product performance can be considered, and the technical problem of appearance cracking of the cold pressing sample of the product can be effectively solved.

The invention discloses a vision-guided gradient functional resin gravel overlay structure and a construction method, and relates to the technical field of tunnel engineering construction.The vision-guided gradient functional resin gravel overlay structure sequentially comprises a tunnel pavement layer, a permeable resin bonding layer, a high-toughness resin colored ceramsite layer and a weather-proof resin sealing layer from bottom to top; the permeable resin bonding layer is composed of permeable epoxy resin and a curing agent and is used for infiltrating into the tunnel pavement surface to form layers with gap sealing and bonding effects, the high-toughness resin colored ceramsite layer is composed of high-toughness epoxy resin and colored ceramsite, and the colored ceramsite is spread before the high-toughness epoxy resin is cured. According to the vision-guided gradient functional resin gravel overlay structure and the construction method thereof, high-strength bonding is formed through the lower permeable resin bonding layer and the tunnel pavement layer, and gaps are sealed; and the middle high-toughness resin colored ceramsite layer provides wear resistance while ensuring bright color and a traffic induction function, so that the wear resistance, pollution resistance and aging resistance of the whole structure are improved.

The utility model discloses a building floor structure paved by stone, and belongs to the technical field of marble and granite paving treatment. The building floor structure paved by the stones sequentially comprises a composite stone layer, a cement mortar layer, a cement mortar leveling layer, a fine aggregate concrete leveling layer, a neat cement mortar layer and a floor base layer from top to bottom, wherein the composite stone layer comprises at least two composite stone blocks, and each composite stone block sequentially comprises stone, an epoxy resin bonding layer and an anti-skid floor tile from top to bottom. According to the paving method provided by the utility model, endogenous alkali can be prevented, long-term stable use of the stone after paving is realized, and the problem that alkali efflorescence is easy to occur when the existing stone is used is solved.

The invention describes an ultralight photovoltaic thermal energy (PVT) module. Cooling is achieved by a water tank (100) formed by a non-profiled surface (2) on the upper side and a plurality of semi-lens-shaped depressions (1) on the lower side. The narrow sections of the depressions form continuous enclosing surfaces (5) on the outer sides. The semi-lens-shaped depressions intersect to form longitudinal seams (8), which simultaneously create a pressure-resistant, stabilizing connection to the upper side. The cooling fluid flows through the water tank in a meandering pattern. The water tank is positively bonded to the photovoltaic module by resin bonding (3).

The invention discloses a micro magnetoelectric antenna based on MEMS resonance sound wave excitation and a driving circuit thereof. The micro magnetoelectric antenna comprises a PCB layer, an epoxy resin bonding layer, a bonding wire and a plurality of TPoS magnetoelectric antennas. The plurality of TPoS magnetoelectric antennas form a TPoS magnetoelectric antenna array; the TPoS magnetoelectric antenna comprises an SOI (Silicon On Insulator) wafer substrate and a magnetoelectric antenna structure arranged on the SOI wafer substrate; the SOI wafer substrate sequentially comprises a silicon substrate, a buried oxide layer and a device layer from bottom to top; the magnetoelectric antenna structure comprises a piezoelectric layer, an electrode layer and an Fe-Ga magnetostrictive material layer which are sequentially arranged above the device layer; the epoxy resin bonding layer is arranged on the PCB layer, and the TPoS magnetoelectric antenna array is bonded on the PCB layer through the epoxy resin bonding layer; and the bonding wire is used for establishing electrical connection between the electrode layer and the PCB layer. The miniature magnetoelectric antenna has the advantages of being small in size, adjustable in bandwidth, low in power consumption and easy to integrate, and can be effectively applied to the field of miniature wireless equipment.

A resin bonding machine is provided that can reduce variations in the thickness of resin applied to a wafer. The resin bonding machine comprises a processing chamber, which includes a holding portion, a worktable, a resin supply portion, a moving portion, and a curing portion. The holding portion holds the wafer, the worktable is opposed to the holding portion, the resin supply portion supplies liquid resin to the worktable, the moving portion brings the holding portion and the worktable into relative proximity, and the curing portion cures the liquid resin. A temperature measuring portion measures the temperature within the processing chamber, and a control portion controls each mechanism. The control portion includes a correlation data storage portion that records correlation data between temperature and the amount of movement of the moving portion at each temperature as data for maintaining a constant thickness of the applied resin even at different temperatures. The control portion, referring to the correlation data, sets the amount of movement in the moving portion that corresponds to the temperature measured by the temperature measuring portion, thereby coating the wafer with resin to a predetermined thickness.

This invention provides a method for preparing a mica insulating sheet for lithium-ion batteries without an aluminum metal layer, relating to the technical field of electrical insulation materials and insulating component molding / manufacturing processes. The method includes: S1. providing a sheet-like mica substrate and preparing an organosilicon resin bonding system for impregnation; simultaneously preparing a ceramic barrier slurry for surface layering, wherein the ceramic barrier slurry includes silica sol, zirconium oxide sol, and titanium dioxide. This method for preparing a mica insulating sheet for lithium-ion batteries without an aluminum metal layer utilizes a ceramic barrier system constructed from Si sol + Zr sol + titanium dioxide, avoiding the existing technology's reliance on an aluminum reflective layer in the process path. This allows the lithium-ion battery insulating material to meet heat resistance and insulation requirements while achieving aluminum-free insulation, improving its application compatibility between cells and between cells and the casing.

The invention relates to the technical field of laser material processing, in particular to a method for improving the bonding strength and corrosion resistance of a metal-CFRP connector, according to the method, a super-hydrophilic nano-micro structure is processed in an inner ring area of a metal bonding surface, and the wetting and permeating effects of a resin bonding film are remarkably improved; a capillary channel drainage structure is machined in the outer ring area and used for guiding corrosive media to be discharged, and interface durability is enhanced. Meanwhile, in combination with precise control of laser energy, the resin is selectively removed without damaging the carbon fibers according to the damage threshold difference between the carbon fibers and the resin in the CFRP, and the interface bonding performance is improved. The method is easy and convenient to operate, is suitable for connection scenes of various metals and composite materials, and has good engineering practical value and popularization prospects.