182 results about "Surface bonding" patented technology

The present application belongs to the technical field of mass concrete construction, and aims to solve the problem of high thermal resistance and slow heat dissipation of traditional cooling pipe laminar bottom layer, and discloses a gravity dam construction cooling water pipe based on destruction of laminar bottom layer and a method thereof. The cooling water pipe comprises a plurality of series water pipe units, each water pipe unit comprises a steel pipe, a flexible spring hose is arranged in the steel pipe, and the spring hose forms a spiral protruding turbulence structure along the inner wall of the steel pipe; the hose is fixed by pointwise anchoring and outer wall surface bonding with glue, and a ring is arranged at both ends for limiting and assisting turbulence. The present application breaks through the thermal resistance of laminar bottom layer, greatly improves the hydration heat conduction efficiency, is convenient to construct and has durable structure, and is suitable for mass concrete temperature control requirements.

This application relates to the field of printed circuit board processing technology, and more specifically, to a low-electrical-loss copper bonding compound, its preparation method, and its application. The compound has the following structural formula: a polythiourea molecule with a nitrazole structure, wherein the degree of polymerization n is 3-10. This application benefits from the compound's special structure (C=S and -NH2), effectively achieving bonding under copper-free etching conditions, and the smooth copper surface meets the requirements for high-frequency signal transmission.

The invention provides a phased array ultrasonic interface debonding detection method for a multilayer curved surface bonding structure, which comprises the following steps of: accurately calculating delay time of each array element in a phased array ultrasonic probe to a target focus by designing a delay block attached to a solid engine and aiming at a cylindrical special structure; therefore, in-phase superposition of sound waves at the target focus is achieved, focusing of sound beams is achieved, the problem of delay time calculation of sound waves emitted by all array elements of a phased array probe of a cylindrical structure is solved, and the problem of control over the deflection angle and the focusing depth of the sound beams synthesized after the sound waves pass through a plurality of curved surface interfaces is solved. Accurate positioning and visual representation of the debonding defect of the deep interface are realized. The technology provides a new technical means for accurately judging the interface debonding defect, and has important significance for guaranteeing the structural integrity and the use safety of the interface debonding defect.

The present application relates to a kind of high-temperature-resistant inductive angle sensor, belong to angle sensor technical field.The sensor includes: gradient composite ceramic substrate Al2O3-ZrO2-Al2O3, realize thermal expansion coefficient gradient matching by intermediate layer zirconium oxide doped yttrium oxide, reduce thermal stress cracking risk;Substrate surface is formed with micro-arc oxidation porous layer in turn titanium nitride nanocrystalline layer, improve surface bonding force;Atomic layer deposition process is used to prepare TiN or TiN / Ag composite film coil, improve temperature resistance;Through electron beam welding and transient liquid phase bonding composite process coil and circuit;Insulating encapsulation layer is made of boron nitride nanosheet and high-temperature-resistant resin, improve thermal conductivity and breakdown field strength.The present application is through gradient substrate design, thin film coil integration and composite process optimization, solves the thermal stress failure of traditional inductive sensor under high temperature, coil oxidation and insulation aging problem, suitable for angle measurement under extreme environment.

The application discloses a kind of X waveband wave-absorbing honeycomb composite layer structures based on graphene derivative, composite material and preparation method and application thereof, method steps include: honeycomb material processing: cutting and washing to honeycomb material;Configuration wave-absorbing slurry: configuration graphene derivative wave-absorbing slurry, and stirring and sanding are carried out;Two times of impregnation: aramid paper honeycomb sheet is impregnated into graphene derivative wave-absorbing slurry, then drying is carried out, and two times of impregnation are carried out;Surface bonding treatment: glass fibre and / or epoxy resin skin are bonded on the upper surface of honeycomb sheet, and conductive carbon fibre and / or epoxy resin skin are bonded on the lower surface of honeycomb sheet.The application can realize the strong absorption (RL<-15dB) characteristics of X waveband electromagnetic wave under thin thickness (8mm), and the material has good structural strength and environmental adaptability, and the preparation method is simple, the cost is moderate, and is suitable for large-scale industrial production.

The utility model discloses a waterproof wear -resisting type slipper relates to slipper technical field, including sole, the top surface bonding of sole has vamp, the top surface of sole is equipped with first drain and second drain, the top of sole is equipped with antiskid salient, the both sides of sole are bonded with first wear -resisting piece, the outer wall mounting of first wear -resisting piece has second wear -resisting piece, one side of first wear -resisting piece is equipped with third wear -resisting piece. This waterproof wear -resisting type slipper is provided with first drain and second drain, when the slipper is contacted with ponding, the user lifts the foot, and the water stain can be discharged quickly through first drain and second drain, prevents the water stain to remain, influences the comfort of wearing, and can first wear -resisting piece, second wear -resisting piece and third wear -resisting piece carry out quick positioning installation dismounting, is convenient for maintenance, and through first wear -resisting piece, second wear -resisting piece and third wear -resisting piece can obviously promote the wear -resisting capacity of slipper.

The invention relates to the technical field of oilfield exploitation, and provides a self-healing gel plugging system with high wall surface binding capacity and a using method and application thereof.The plugging system is composed of self-healing gel, a wall surface binding agent and a self-healing inducer, and the wall surface binding agent serves as an intermediate to play a bridge role; a catechol group on one side of the nano-sheet has multiple interaction with active sites on the rock surface, and amino on the other side of the nano-sheet and an aldehyde group of a cross-linking agent form a Schiff base bond, so that a wall surface-nano-sheet-gel bridging structure is constructed, and a gel network is firmly anchored on the rock wall surface. The gel network can be crosslinked again to realize self-healing after being damaged by depending on an amino-aldehyde group dynamic reversible bond; the self-healing inducer gradually releases acidic components under stratum conditions, adjusts local pH, promotes aldehyde group-amino condensation crosslinking and improves the long-term stability of the system. Particle fluid channeling can be effectively inhibited, the water flooding swept volume is improved, and therefore the crude oil recovery rate is increased.

The utility model relates to the technical field of cartons, in particular to a damp-proof and compression-resistant structure of a color box of a color box carton, which comprises a box body, a box cover is sleeved on the top of the box body, a damp-proof and compression-resistant piece is arranged in the box body and comprises four rectangular vertical pipes arranged in a matrix, reinforcing vertical plates are arranged in the rectangular vertical pipes, and rectangular sliding plates are arranged at the bottoms of the reinforcing vertical plates. Drying agents are placed in the rectangular vertical pipes and located on the two sides of the reinforcing vertical plates, a plurality of air holes a are formed in the opposite side faces of the two rectangular vertical pipes which are oppositely arranged in the front-back direction, and a plurality of air holes b are formed in the opposite side faces of the two rectangular vertical pipes which are oppositely arranged in the left-right direction. According to the damp-proof and pressure-resistant structure of the color box of the color box carton, the rubber sealing lining adheres to the side face of the inner wall of the carton cover to form a sealing structure, moisture is prevented from entering the carton body through a gap between the carton cover and the carton body, the damp-proof and pressure-resistant part is arranged in the carton body, structural reinforcement can be conducted on the interior of the carton body, and the pressure-resistant capacity of the carton body is remarkably enhanced.

The application discloses a two-step plasma treatment method for enhancing the surface bonding performance of polytetrafluoroethylene material, and the treatment method comprises the following steps: (1) adopting a first plasma to perform surface treatment on polytetrafluoroethylene, wherein the discharge gas of the first plasma is argon or a mixed gas containing argon; (2) adopting a second plasma to bombard the surface of the polytetrafluoroethylene material after the surface treatment in step (1), so as to form a carbon-nitrogen cross-linked layer on the surface of the polytetrafluoroethylene, and obtain polytetrafluoroethylene with high bonding performance, wherein the discharge gas of the second plasma is a mixed gas of argon, methane and ammonia. The polytetrafluoroethylene sample treated by the above method has good hydrophilic performance and extremely strong bonding performance, the sample surface always maintains good hydrophilic performance in air for three months without any treatment, and the bonding strength between the treated polytetrafluoroethylene and special glue is as high as 77 N / 10 mm ‑1 .

The utility model provides a sand conveying belt scraping mechanism for concrete preparation. The sand conveying belt scraping mechanism comprises a first mounting plate and a second mounting plate which are fixedly connected with the outer wall of the end of a rack of a belt conveyor. Seat sleeves are mounted on the outer walls of the first mounting plate and the second mounting plate in a penetrating manner; rotating rods are mounted in the seat sleeves on the two sides in a running fit manner; a scraping plate in contact with the outer surface of the belt is fixedly mounted in the middle of the rotating rod; the two outer ends of the rotating rod are sleeved with rotating sleeves through locking mechanisms respectively, rotating plates are fixed to the outer walls of the rotating sleeves, and elastic pressing mechanisms for always pressing the scraper blade are fixed between the rotating plates and the first mounting plate and the second mounting plate on the corresponding sides. According to the scraping mechanism, the elastic pressing mechanism is adopted, the rotating plate can be pressed tightly all the time, then rotating torque is generated on the rotating rod, the scraping plate is pressed tightly on the outer surface of the belt all the time through the rotating rod, and therefore materials adhering to the outer surface of the belt are scraped away.

The application discloses a metal thin layer structure for surface bonding and a preparation method. The metal thin layer comprises two WTi mixed metal layers and three Au metal layers. The metal thin layer is prepared by a magnetron sputtering process, an electroplating process and the like. Compared with the prior art, the metal thin layer structure is used as an upper plate of a capacitor, has higher adhesion and high bonding tensile strength, and can still maintain excellent performance after experiencing high-strength reliability tests.

The application discloses a kind of porous ultrafine silica powder with core-shell structure and its preparation method, the silica powder includes inner core and the shell of coating on the surface of inner core, the porosity of shell is greater than the porosity of inner core, the ratio of the radius r of inner core and the layer thickness d of shell satisfies 1:0.2~0.6;The silica powder gives consideration to mechanical strength and low dielectric property and high dimensional stability.The preparation method includes: on the basis of conventional silica powder as inner core, by sol-gel method, a layer of amorphous porous silica outer layer is coated, by adding dispersing agent, the agglomeration of particles is inhibited and the sphericity of the obtained porous ultrafine silica powder with core-shell structure is improved, further using the instantaneous high temperature during flash drying makes the surface of particles instantaneous shrinkage, improves the sphericity and surface bonding strength of the porous ultrafine silica powder with core-shell structure, and then the fluidity and mechanical strength of the material are improved.

The utility model relates to the technical field of trademarks, in particular to a liquid silica gel apparel trademark which comprises a limiting frame, a film covering layer, a connecting block, a liquid silica gel layer and a light reflecting layer, a first hot melt adhesive layer is arranged on the bottom face of the limiting frame, the film covering layer is arranged on the top face of the limiting frame to cover the limiting frame, and the top end of the connecting block is connected with the film covering layer. A second hot melt adhesive layer is arranged on the bottom face of each connecting block, the multiple connecting blocks are regularly distributed below the film covering layer and surrounded by the limiting frame, the liquid silica gel layer is arranged on the top face of the film covering layer and connected with the film covering layer, and the light reflecting layer is arranged on the top face of the liquid silica gel layer and connected with the liquid silica gel layer. The limiting frames and the connecting blocks are bonded and fixed to the surface of the clothes under the action of the hot melt adhesive, the connecting blocks are arranged at intervals and are not completely bonded to the surface of the clothes, the liquid silica gel layer can drive the reflective layer to synchronously distort and deform when the clothes are stretched and deformed or under the action of external force, the reflection angle of light is changed, and the visual effect of the trademark can be improved; the practical significance and the popularization value are realized.

One objective is to provide a technique suitable for suppressing thermal deformation occurring in a front-side electrode of a semiconductor device. A semiconductor device comprises a semiconductor layer, a front-side electrode provided on a front surface of the semiconductor layer, a front-side bonding layer selectively provided on a front surface of the front-side electrode, a conductor frame, and a front-side bonding material. The conductor frame is located on one side of a front surface of the front-side bonding layer, and the front-side bonding material connects the conductor frame and the front-side bonding layer.The elastic modulus of the element front surface bonding material is 20% or less than the elastic modulus of the front surface electrode.

The utility model relates to medical nursing auxiliary material technical field, concretely relates to a restraint strap for bed and chair, including restraint strap body, the inside of restraint strap body has the surface of wool, the outside has the hook surface, both can form the bonding, bandage, the middle part of bandage is connected with the outside of restraint strap body, buckle structure, and the both ends of bandage are fixedly connected through buckle structure, the utility model discloses the surface of wool and hook surface bonding design of restraint strap body has solved the adaptability problem caused by the fixed length of traditional restraint strap, and the both ends of the bandage with antiskid silica gel particle are passed through the support structure of bed frame or seat, and the fixed realization through the male head and female head of buckle structure's buckling is fixed, thereby providing a bed and chair dual -purpose restraint device that simple structure, fixed firm and can adapt to different body type users.

The utility model provides a circuit board structure and a socket structure, the circuit board structure comprises a circuit board, the circuit board is provided with a first surface, the first surface is provided with at least one first bonding pad, and when there are a plurality of first bonding pads, the first bonding pads are arranged at intervals according to a preset state; the circuit board is provided with via holes in the centers of the first bonding pads so as to form annular bonding pads at the first bonding pads, and the via holes are in one-to-one correspondence with the first bonding pads; the radius of the annular bonding pad is larger than 0.3 mm, and the annular bonding pad can be used for being connected with the welding face of the male socket and the welding face of the female socket in an attached mode. The radius of the annular bonding pad is larger than 0.3 mm, and the area of the bonding pad is increased, so that when the male socket and the female socket are welded to a circuit board, the use amount of soldering paste can be increased, it can be guaranteed that sufficient soldering paste exists between the welding face and the annular bonding pad, the attachment face of the soldering paste is increased, and the welding quality of the male socket and the female socket is improved. The conditions of non-welding, insufficient welding and the like between the male and female sockets and the circuit board are avoided, and the connection reliability of the circuit board and the male and female sockets is improved.

The invention discloses a carbon fiber bundle and carbon fiber cloth composite reinforcing structure and a construction method thereof.The carbon fiber bundle and carbon fiber cloth composite reinforcing structure comprises a carbon fiber cloth base layer which comprises a plurality of transverse cloth strips and longitudinal cloth strips, the multiple longitudinal cloth strips are bonded to the surface of a to-be-reinforced structure and arranged at intervals in the first direction, and the transverse cloth strips and the longitudinal cloth strips are arranged at intervals in the second direction; the transverse cloth strips are bonded to the longitudinal cloth strips and the surface, the transverse cloth strips are arranged at intervals in the second direction, the transverse cloth strips and the longitudinal cloth strips are arranged in a crossed mode, and each transverse cloth strip comprises an overlapping section bonded to the corresponding longitudinal cloth strip and a direct connecting section bonded to the surface; the middle of the carbon fiber bundle is fixedly arranged on the surface, and the two ends of the carbon fiber bundle are bonded to the front face, back to the surface, of the direct connection section; and the carbon fiber cloth protection layer covers the front face of the direct connection section and the carbon fiber bundles, and the two opposite ends of the carbon fiber cloth protection layer extend to the surface and are bonded to the surface. The problem that an adhesive layer of an existing single carbon fiber cloth reinforced concrete structure is prone to cracking and stripping is solved.

The invention discloses a bonding type continuous composite flow guide strip which comprises a plurality of flow guide bodies, a conductive sheet, a polyester sheet, an insulating coating and a conductive paint belt, wherein the plurality of flow deflectors are in clearance connection to form a flow deflector layer; the polyester sheet is connected with the lower surface of the flow guide body layer and is adhered to the upper surfaces of the heat-proof layer and the conductive sheet; the conductive sheet is positioned on the lower surface of the polyester sheet and is adhered to the upper surface of the external machine body heat-proof layer; the conductive sheet is used for generating electromagnetic induction eddy current; the upper surface and the periphery of a joint between the flow guide bodies are covered with silicone rubber or a heat-proof coating to form an insulating coating; the insulating coating covers the end part of the flow guide body; and the upper surface of the insulating coating is brushed with conductive paint to form a conductive paint belt.

The application relates to the technical field of waterproof materials, in particular to a waterproof material storage device and a waterproof material storage method, which are named waterproof material storage device and comprise a storage rack, winding rollers of waterproof materials are arranged on the storage rack, the winding rollers are installed on the device rack through bearings at two ends, a rotating motor is further installed on the device rack, the rotating motor is connected with the winding rollers and a control device, under the action of the control device, the rotating motor is operated to drive the rotating rollers to rotate by 180 DEG at a certain interval time, the interval time is gradually prolonged under the action of the control device; a vibrating device is further installed on the device rack, and the vibrating device is connected with the control device; damping components are arranged under the storage rack. The waterproof material storage device has the advantages that the surfaces of adjacent waterproof materials can be prevented from being bonded, and the appearance and quality of the waterproof materials can be guaranteed.

The invention relates to the technical field of shoemaking, and discloses a production process of integrally formed shoes, which comprises the following steps: S1, respectively preparing a vamp raw material composition, an insole raw material composition and an outsole raw material composition; s2, a multi-material co-injection molding process is adopted, and the three raw material compositions are injected into corresponding areas of a mold cavity; and S3, carrying out post-treatment on the precursor shoe. A vamp interface is driven to generate plastic deformation by utilizing physical displacement generated by foaming and expansion of the insole, a deep and indented three-dimensional mechanical interlocking structure is formed, the structure fundamentally changes a traditional surface bonding mode and is converted into structural embedding of a physical layer, and the surface bonding effect is greatly improved. According to the invention, the vamp and the midsole have extremely excellent bonding strength and durability, the use of an adhesive is completely abandoned, the long-term adhesive failure risk of a multi-component shoe body is solved from the source, and the overall reliability and the service life of the product are remarkably improved.

The invention relates to a super-bass miniature loudspeaker which comprises a magnetic bowl, main magnetic steel, a first auxiliary magnetic steel assembly, a support, a pole piece, a second auxiliary magnetic steel assembly, a voice coil, a dome and a voice diaphragm. The lower surface of the bracket is adhered to the four pieces of first auxiliary magnetic steel; a supporting frame body is embedded in the inner wall of the bracket; flexible circuit boards are arranged at two corners of the inner surface of the bracket; the pole piece is adhered to the upper surface of the main magnetic steel; the second auxiliary magnetic steel assembly comprises four second auxiliary magnetic steels, and the four second auxiliary magnetic steels are bonded in the supporting frame body; the voice diaphragm is adhered to the upper surface of the bracket; the dome is adhered to the lower surface of the voice diaphragm; the upper surface of the voice coil is adhered to the lower surface of the dome, and two wiring ends of the voice coil are electrically connected to the positive electrode connecting end and the negative electrode connecting end of the flexible circuit board respectively. Through the specific structural design, the second auxiliary magnetic steel assembly is introduced, and the sound pressure is increased on the contrary under the condition that the height is limited. And under the condition of ensuring the product height, the product performance is still improved.

The application belongs to the technical field of building decoration engineering, and discloses a flexible dry hanging structure and mounting method of building outer wall decorative plate. The structure is characterized in that the ratchet connecting rod is a flexible rod, and the middle and rear parts are provided with ratchet teeth towards the front part; the ratchet connecting lock is provided with two ratchet lock insertion holes I in parallel, and the inner surface is provided with ratchet teeth towards the opposite direction; the ratchet fixing fastener comprises a bonding fixing disc II and a ratchet lock insertion hole II provided with ratchet teeth on the inner surface; the building outer wall is provided with a transverse stress rod and is fixed with a pre-buried steel bar or a shot pin; the bonding fixing discs I and II are respectively bonded with the inner surface of the decorative plate, the ratchet connecting rod respectively passes through the ratchet lock insertion holes I on both sides of the ratchet connecting lock, bypasses the stress rod, and then passes through the ratchet lock insertion hole II to fix the decorative plate and the stress rod. The method comprises the steps of outer wall component setting, plate pretreatment, fixing disc installation, wall surface installation and later adjustment. The application has the characteristics of simple structure, high positioning accuracy, no damage to the plate and reliable connection.

The utility model relates to the related technical field of aluminum alloy coiled material processing equipment, in particular to an aluminum alloy coiled material stretch bending, straightening and polishing device which comprises a processing component, a straightening component and a polishing component, the processing component comprises a processing table and an extension bottom plate, and the extension bottom plate is connected to the lower portion of one side of the outer surface of the processing table; the bonding component comprises a bonding roller I, a bonding roller II and a bonding roller III, and the bonding roller I is positioned on the upper surface of the extending bottom plate; the second bonding roller is located on the upper surface of the extending bottom plate; the stand column is connected to the top of the extending bottom plate; the positioning ring is connected to the lower part of the outer surface of the stand column; the first lantern rings are connected to the two ends of the outer surface of the first bonding roller and connected to the outer surfaces of the stand columns in a sleeving mode. In the utility model, in the links of production, transportation and storage of the aluminum alloy coiled material, the quality of the coiled material is easily influenced by external factors, and particularly, in the transportation process, dust and impurities in the external environment are inevitably attached to the surface of the coiled material, so that the production cost is greatly increased, and the problems in the prior art are solved.

This application provides a partition wall panel and a rail vehicle. The partition wall panel includes: a core layer, which is foamed polypropylene; a reinforcing layer, respectively bonded to the upper and lower surfaces of the core layer; the reinforcing layer is made of composite fiber reinforced epoxy resin prepreg; a skin layer; a skin layer is bonded to the outer surface of each reinforcing layer away from the core layer; the skin layer is a fire-resistant board. The partition wall panel and rail vehicle provided in this application have a core layer made of foamed polypropylene, which has advantages such as good cushioning and vibration absorption capacity and good heat resistance. It is also lightweight, environmentally friendly, and recyclable. The reinforcing layer made of composite fiber reinforced epoxy resin prepreg can improve the overall bending strength of the partition wall panel. The skin layer is a fire-resistant board, which has good fire resistance.

The utility model belongs to the technical field of main shaft machining, and particularly relates to a press machine for machining a main shaft, which comprises a bottom plate, four stand columns arranged at the top of the bottom plate and a bearing plate used for bearing a main shaft forge piece, a supporting plate arranged at the tops of the four stand columns, and a hydraulic assembly arranged on the supporting plate. Two first sliding grooves and two second sliding grooves are formed in the upper surface of the bottom plate, rotating assemblies are arranged in the two first sliding grooves, first wedge-shaped blocks are arranged on the rotating assemblies, telescopic assemblies are arranged at the tops of the first wedge-shaped blocks, first connecting plates are arranged at the tops of the telescopic assemblies, and rotating assemblies are arranged on the first connecting plates. An elastic moving assembly is arranged in each second sliding groove, an impurity removing plate attached to the surface of the bearing plate is arranged on each elastic moving assembly, and second wedge-shaped blocks attached to the first wedge-shaped blocks are arranged at the two ends of each impurity removing plate. According to the device, the forge piece can be turned over automatically, the working efficiency is improved, meanwhile, impurities can be removed in time, and the machining quality is guaranteed.

The utility model relates to the technical field of ceramic plates, in particular to a high-strength ceramic plate which comprises a ceramic panel, a bonding coating is coated on the surface of the ceramic panel, a reinforcing layer is bonded on the surface of the bonding coating, the reinforcing layer is a carbon fiber layer, a plurality of grooves are formed in the surface of the ceramic panel, and the grooves are communicated with the ceramic panel. The adhesive coating is fixedly connected with the inner wall of the groove, an elastic layer is connected to the side, away from the ceramic panel, of the reinforcing layer in a glued mode, and the elastic layer is an elastic resin layer. According to the utility model, through the arrangement of the reinforcing layer, when external impact occurs, the reinforcing layer made of the carbon fiber material is firstly stressed, and the carbon fiber has higher tensile strength and elasticity modulus and can generate elastic deformation to a certain extent when bearing the impact, so that concentrated impact force can be dispersed to other positions on the ceramic panel; and further, the situation that the ceramic panel is subjected to crack extension and fragmentation due to overlarge local stress is avoided.

This invention relates to the field of aircraft water load flight testing technology, and specifically to a method for resisting high-speed water impact on water pressure sensors for large amphibious aircraft. This method employs a combination of high-strength aerospace structural adhesive and a water-impact-resistant coating, effectively solving the problem of surface-adhesive water pressure sensors being easily washed away due to surface bonding processes. By adding a certain amount of rigid nanoparticles to the water-impact-resistant coating, the mechanical and adhesive properties of the surface coating itself are greatly improved, effectively protecting the sensor's adhesive seams from the risk of being punctured by high-speed water. This solves the technical problem of water pressure sensors being unsuitable for use on the bottom skin of aircraft, making it possible to conduct large-scale, full-aircraft water load measurements on large amphibious aircraft using surface-adhesive water pressure sensors.

The application discloses a manufacturing method of an anti-icing acoustic array module, and the module is manufactured by using an integrated forming process, and specifically comprises the following steps: S1, roughening treatment is performed on the inner and outer surfaces of a high-strength composite material layer to improve the surface bonding strength; S2, polyurea is sprayed on the front surface of the high-strength composite material layer, the thickness is uniform and controlled within the range of 0.5-2 mm; S3, an adhesive is coated on the back surface of the high-strength composite material layer, and a specific thickness of low-modulus polyurethane glue is poured after preheating; and S4, the anti-icing layer is completed by placing in an oven for heating and curing. The application has the advantages of simple process and uniform composite bonding of the anti-icing layer and the acoustic array main body, and can guarantee the acoustic performance of the acoustic array while obtaining the anti-icing capability.

This application relates to the field of optical element technology and aims to solve the technical problem of poor imaging effect in some known lens assembly methods, providing a lens assembly method, apparatus, and lens assembly. The lens assembly method is used to fix a first lens to a second lens. The first lens includes a first optical part and a first connecting part disposed at the edge of the first optical part. The second lens includes a second optical part and a second connecting part disposed at the edge of the second optical part. The first optical part has a first bonding surface, and the second optical part has a second bonding surface. The lens assembly method includes: heating the first lens and softening it; pressing the softened first lens onto the second lens, bonding the first bonding surface to the second bonding surface, and thermally fusing the first connecting part to the second connecting part. The beneficial effect of this application is to improve the accuracy of the first bonding surface bonding to the second bonding surface, thereby improving the imaging effect of the lens assembly.

The application belongs to the technical field of connection of metal materials, and discloses a diffusion welding method of beryllium copper and tool steel. ‑3 The application discloses a diffusion welding method of beryllium copper and tool steel, which comprises the following steps: (1) polishing and polishing the welding surface of the beryllium copper and the tool steel, and then cleaning; (2) assembling the beryllium copper and the tool steel in a package; (3) sending the assembled package into a vacuum degassing furnace, setting the temperature to 300-350 DEG C, and performing vacuumization on the package in the process, until the vacuum degree reaches 1*10 ‑3 Pa; (4) assembling the degassed package into a hot isostatic pressing device, and then performing hot isostatic pressing, using a protective gas as a pressure medium, setting the hot pressing temperature to 600-650 DEG C, setting the pressure to 100-130 Mpa, and setting the holding and pressure maintaining time to 2-4 h; (5) after the hot isostatic pressing is completed, furnace cooling is performed, then the package is cut open, and the beryllium copper-tool steel diffusion welding finished product is obtained. The beryllium copper-tool steel diffusion welding finished product prepared by the application has a high welding surface bonding rate and good tensile strength.