149results about How to "Improve surface smoothness" patented technology

The invention discloses a polishing track planning method for an artificial metal skeleton, which realizes self-adaptive fine polishing on a complex surface through multi-mode perception fusion of vision and touch. The method comprises the steps that global point cloud data and local point cloud data are obtained through a large-view and high-precision line laser sensor, a to-be-polished area and the height difference are accurately calculated in combination with a relative pose matrix and an ICP algorithm, and a polishing track is generated through a greedy triangulation and slice construction algorithm. A least square method is adopted for smoothing a track contour line, a polishing path is optimized, and it is ensured that the track is smooth and stable; and in combination with real-time feedback adjustment of a six-dimensional force sensor, constant force control is achieved, and the problems of uneven pressure and surface damage in traditional grinding are solved. According to the scheme, the grinding precision, consistency and adaptability are remarkably improved, and the method is particularly suitable for high-requirement grinding of metal skeletons in complex forms. Compared with the prior art, the real-time dynamic optimization of the polishing track from visual and tactile data is realized.

The invention relates to the technical field of machine vision, in particular to a stainless steel pipe production intelligent detection system based on machine vision, which comprises a shape evaluation module, a welding quality detection module, a welding quality analysis module, a pipe surface evaluation module, a cutting evaluation module, a process evaluation module and a management database, the system obtains the shape conformity degree of the stainless steel pipe according to the shape parameters of the stainless steel pipe, obtains the weld quality evaluation coefficient of the stainless steel pipe according to the weld defect parameters of the stainless steel pipe, and obtains the surface smoothness degree of the stainless steel pipe according to the surface parameters of the stainless steel pipe. The cutting evaluation coefficient of the stainless steel pipe is obtained according to the appearance parameters of the cutting face of the stainless steel pipe, then the procedure evaluation index of the stainless steel pipe is obtained through comprehensive analysis, the procedure evaluation index is fed back, unqualified products can be reduced, the yield is increased, and it is guaranteed that the performance of the produced pipe is consistent in all aspects.

The invention provides a surface cubic-phase-rich functional modified hard alloy and a preparation method, and belongs to the technical field of hard alloy cutter materials. According to the method, tungsten carbide is subjected to yttrium doping treatment, boron-containing titanium carbide and cobalt-molybdenum composite powder are used together, a nitriding sintering process is combined, diffusion and permeation of nitrogen atoms are promoted, the microstructure of the alloy is regulated and controlled, enrichment of a cubic phase on the surface of the alloy is achieved, and the surface-rich cubic phase functional modified hard alloy is obtained; the Vickers hardness and the heat conductivity coefficient of the hard alloy material are effectively improved, and meanwhile the friction coefficient of the material is reduced; the surface layer rich cubic phase of the modified hard alloy material is provided with the functional gradient layer, the binding force of a coating of a tool material prepared from the modified hard alloy material and a matrix can be improved, and therefore the service life of the tool material is prolonged.

The invention provides a seamless rapid fusion method and system for multivariate three-dimensional data, a product and a medium, and relates to the technical field of electric digital data processing. By acquiring multi-source heterogeneous data and unifying the multi-source heterogeneous data to a coordinate system of a geographic base map layer, a datum reference for data fusion is established. And the geographic base map layer is used as a benchmark to provide a stable spatial reference for subsequent data fusion. The surface smoothing algorithm is adopted to preprocess the live-action three-dimensional model and the monomer model data, so that the influence of data noise on the fusion precision is reduced. Through cooperative use of feature point extraction and an iterative nearest point algorithm, accurate alignment of different types of three-dimensional data is realized. According to the feature-based iterative optimization mode, the error accumulation problem caused by direct overall fusion is avoided, the fusion precision is improved, and the geometric consistency of the fused scene is ensured.

The invention relates to the technical field of carbon materials, in particular to a preparation method and application of a heat conduction material and a maleic anhydride grafted graphene material.The preparation method comprises the steps that maleic anhydride and graphene are evenly mixed, and a prefabricated mixture is obtained; uniformly mixing the prefabricated mixture with a peroxy initiator, heating to react for a certain time, cleaning a product, and drying to obtain the maleic anhydride grafted graphene material. According to the preparation method, graphene is grafted with strong polar groups to serve as a connecting bridge between the graphene and a plastic matrix, so that the strong bonding capacity between the graphene and the plastic matrix is obtained, then the toughness, surface smoothness, breaking strength and other mechanical properties of the corresponding plastic heat-conducting composite material are improved, and meanwhile the heat-conducting property of the heat-conducting composite material is remarkably improved. In addition, maleic anhydride and graphene are directly mixed without the help of an organic solvent or a dispersing agent and the like, the process is simple and pollution-free, the environmental protection property is improved, and the complexity of the preparation process is reduced.

The invention discloses a scene instance segmentation method and device, equipment, a storage medium and a product, and relates to the technical field of image processing, and the scene instance segmentation method comprises the steps: obtaining image data in a target scene; processing the image data based on the preset segmentation model, and outputting a segmentation mask; and processing the segmentation mask through a three-dimensional Gaussian representation technology to generate an initial segmentation result, and complementing or removing boundary Gaussian distribution in the initial segmentation result to obtain a final segmentation result. According to the invention, the smoothness of instance segmentation is improved.

The utility model discloses an elastic nylon fabric which comprises a fabric layer, the fabric layer is formed by interweaving warp yarns and weft yarns in a plain weave mode, the warp yarns are of a ZS double wrap yarn structure formed by wrapping spandex with low-denier nylon, the twisting mode is that Z twisting and S twisting are conducted at the same time, and the twisting degree ranges from 1800 twists to 2000 twists. According to the elastic nylon fabric, a ZS double-wrapping structure is adopted in the warp direction of the elastic nylon fabric, the overall tension of wrapping yarn is ensured, and the elasticity and stability of the fabric are improved. Meanwhile, by adjusting the density in the warp direction and the weft direction, the fabric not only has an excellent cool feeling effect, but also has good anti-ultraviolet performance, and the air permeability is optimized.

The cast iron flange pipeline joint manufacturing automatic machining machine comprises a supporting seat, a rotating cylinder is arranged on the supporting seat, a rotating groove is formed in one side of the supporting seat, a rotating rod is rotationally connected into the rotating groove, a driving shaft is arranged on one side of the upper portion of the supporting seat, and an oil cylinder is connected to the inner side of the driving shaft; and one side of the oil cylinder is connected with an electric telescopic rod. Through a rotating rod, a driving wheel, a first driven wheel and a second driven wheel, a grinding roller and a pipeline joint rotate in the same direction, it is ensured that grinding is more uniform, the surface smoothness and flatness are improved, and therefore the sealing performance of the pipeline joint during installation is improved, it can be ensured that the machining quality of all the pipeline joints is consistent through automatic machining, and the machining efficiency is improved. Errors caused by manual operation are avoided, the rejection rate can be effectively reduced through efficient grinding and good surface quality, and the production cost is reduced.

The invention discloses a method for reducing surface mucosa of a tooth-shaped powder metallurgy die, and belongs to the field of parts for transmitting torque in electric tools and engines. In the jet polishing process of the surface of the middle die step of the tooth-shaped powder metallurgy die, a rubber-diamond mixed material is adopted as a jet abrasive material, the rubber-diamond mixed abrasive material is conveyed into a throwing wheel system in a belt conveying mode, the initial speed of jet fluid is controlled to be 28.3 m / s by adjusting the centrifugal force of an impeller, and the jet polishing process is completed. Million of grinding materials make contact with the surface of the tooth-shaped powder metallurgy die in a sliding mode, the grinding effect is achieved under efficient impact, and finally the polishing effect is achieved. According to the invention, the discharge stress can be obviously eliminated, the surface smoothness is improved, the smoothness is increased, the purpose of preventing powder from sticking films is achieved, and meanwhile, the yield can be greatly increased.

The invention belongs to the field of stainless steel pickling, and particularly relates to an austenitic stainless steel whole-hydrochloric-acid-based stepped pickling method. At present, stainless steel pickling is mainly based on a mixed acid pickling (nitric acid and hydrofluoric acid) system, the problem of three-waste discharge exists in the pickling process, the pickling process is only suitable for removing ferritic stainless steel with weak binding force between an oxide layer and a metal matrix through pickling, and the oxide layers on the surfaces of ferritic cold plate stainless steel and austenitic stainless steel are difficult to remove. In order to solve the problems, hydrochloric acid is used for providing an acid environment, a pre-pickling and grading final pickling cooperative treatment method is adopted, a compact oxide layer on the surface of the austenitic stainless steel can be effectively removed, surface polishing and surface passivation can be achieved through the anodic polarization effect, and the stainless steel surface after pickling is free of pitting corrosion and intergranular corrosion phenomena; and the pickled stainless steel surface has high smoothness, the leveling and polishing quality of the BA plate can be remarkably improved, meanwhile, the production cost is low, and pickling waste liquid can be regenerated and recycled.

The invention relates to the technical field of aerosol generating matrixes, and provides a manufacturing method and a manufacturing system of an aerosol generating matrix, the manufacturing method comprises the following steps: a mixed material is extruded at normal temperature to form an extruded matrix, and the mixed material is a component of the aerosol generating matrix; and carrying out hot air drying on the extruded matrix. The mixed material is extruded at normal temperature, the mixed material has good fluidity, the surface smoothness of an extruded matrix is good, and the extrusion molding effect is good, so that good extrusion efficiency and high production speed are guaranteed, and the yield is increased. And hot air drying can dry the extruded matrix in batches, the drying speed is high, and the moisture content of the extruded matrix is reduced through hot air drying, so that the aerosol generating matrix is convenient to store and use.

The invention provides a method for preparing a non-porous metal catalyst through a photodeposition method and application of the catalyst, and relates to the technical field of catalysts. The preparation method of the non-porous metal catalyst comprises the following steps: preparing carbon quantum dots, pickling a carrier material, blocking the carrier material with the carbon quantum dots to prepare a non-porous carrier, and loading a metal active component onto the non-porous carrier through a photodeposition method to prepare the non-porous metal catalyst. And the catalyst can be applied to a nitro compound hydrogenation reaction in a fixed bed. According to the invention, the defects in the prior art are overcome, the metal catalyst is prepared by using the surface non-porous carrier and the photodeposition technology, the dispersity of metal on the surface of the carrier can be improved, the aggregation and accumulation of metal particles can be effectively prevented, the surface smoothness of the non-porous carrier is high, the diffusion path between the metal and reactants is reduced, and the reaction efficiency is improved.

The invention provides a titanium nano-coating heat exchanger and a coating method thereof, the titanium nano-coating heat exchanger comprises a main body and a heat exchange tube arranged in the main body, the two sides of the main body are provided with an air inlet and an air outlet respectively, and the two ends of the heat exchange tube are provided with a water inlet and a water outlet respectively; the inner wall of the main body and / or the inner wall of the air inlet and / or the inner wall of the air outlet and / or the inner wall and / or the outer wall of the heat exchange tube are / is a bottom surface, and a titanium nano coating is arranged on the bottom surface. According to the titanium nano-coating heat exchanger provided by the invention, the titanium nano-coating is arranged on the bottom surface of the heat exchanger, so that the requirement on corrosion resistance of a heat exchanger manufacturing material is reduced, the overall manufacturing cost of the heat exchanger is further reduced, and the capital investment of an enterprise is reduced. The titanium nano coating has the characteristics of compact structure and high surface smoothness, is small in friction coefficient, inhibits scaling in the heat exchanger, improves the heat exchange efficiency, has good corrosion resistance, and can prolong the service life of the heat exchanger.

The invention relates to the technical field of sand blasting and electroplating, and particularly discloses a sand blasting and electroplating process of a plated part. Comprising the following operation steps that S1, a raw material is subjected to stamping, oil removal grinding and oil removal polishing in sequence, and a prefabricated raw material is obtained; s2, the prefabricated raw material is sequentially subjected to surface sand blasting and copper bottom making, and a prefabricated plated part is obtained; s3, nickel plating, water washing and drying are sequentially conducted on the prefabricated plating piece, and a plating piece is obtained; and S4, the plated part is subjected to full inspection, packaged and delivered, and a product is obtained.

The present invention is a film-forming method for heat-treating a raw material solution atomized into a mist and performing a film-formation, and the method includes the following steps: atomizing the raw material solution or making the raw material solution into droplets to generate a mist; conveying the mist to a film-forming part by a carrier gas; and supplying the mist from a nozzle to a substrate, heat-treating the mist on the substrate, and performing the film-formation in the film-forming part, wherein with the area of an opening surface of the nozzle being S [cm2], the longest distance among distances between points in the opening surface and the surface of the substrate being H [cm], and the flow rate of the carrier gas supplied from the nozzle being Q [L / min], SH / Q≥0.015 results. Thus, the present invention provides: the film-forming method for suppressing abnormal growth and forming a film having good surface smoothness.

The invention discloses a preparation method of a lithium ion battery with a double-layer negative electrode and a long-service-life low-temperature starting power supply. The preparation method comprises the following steps: step 1, preparing positive electrode slurry; step 2, preparing a first layer of negative electrode slurry; step 3, manufacturing a second layer of negative electrode slurry; 4, manufacturing a positive electrode current collector; 5, manufacturing a double-layer negative electrode current collector; and 6, manufacturing the long-life low-temperature starting power supply lithium ion battery. The first layer of negative electrode slurry and the second layer of negative electrode slurry are coated on the negative electrode plate to form the double-layer negative electrode current collector, and then the double-layer negative electrode current collector is assembled to form the long-life low-temperature starting power supply lithium ion battery. The energy density of the lithium ion battery is effectively improved, the surface smoothness is enhanced, the conductivity is improved, the cycle life is prolonged, the safety performance is improved, and the prepared lithium ion battery has excellent low-temperature large-current pulse performance, low-temperature rate performance, low-temperature cycle performance, excellent normal-temperature fast-charge and fast-discharge cycle performance and good charge-discharge first efficiency.

The invention provides a low-water-absorption glass bead modified PBT (polybutylene terephthalate) material and a preparation method thereof. The low-water-absorption glass bead modified PBT material comprises the following components in parts by weight: 70-100 parts of PBT resin; 0 to 30 parts of solid glass beads; 0-5 parts of a toughening agent; 0-2 parts of an antioxidant; 0-2 parts of a lubricant; 0-2 parts of black color master batch; 0-2 parts of a coupling agent; 0-5 parts of polytetrafluoroethylene wax; wherein the average particle size of the solid glass beads is 1-50 [mu] m; the average particle size of the polytetrafluoroethylene wax is 3-15 [mu] m, and the weight-average molecular weight of the polytetrafluoroethylene wax is 10000-30000 g / mol; the weight ratio of the solid glass beads to the polytetrafluoroethylene wax is (5-10): 1. According to the invention, the polytetrafluoroethylene wax is added into the solid glass bead modified PBT material, so that the shrinkage difference between the material flow direction and the vertical flow direction is effectively reduced, the water absorption rate of the material is remarkably reduced, the preparation process is simple, and the production process is easy to control.

The utility model provides a device for preparing a needle-shaped electrode of an ion trap, which comprises a reaction tank for containing an electrolyte solution; the vertical clamping mechanism is used for fixing and clamping the metal rod; the lifting mechanism is used for immersing the metal rod into the electrolyte solution by a preset depth; the magnetic field coil is used for generating a magnetic field to enable the electrolyte solution to rotate in the reaction tank, a cathode is arranged in the reaction tank, and the metal rod and the cathode are connected to a positive electrode and a negative electrode of a direct-current power supply respectively; and the part, immersed in the electrolyte solution, of the metal rod is subjected to electrochemical reaction in the electrolyte solution to prepare the needle-shaped electrode for the ion trap. According to the utility model, the problem that the surface of the needle tip of the prepared needle-shaped electrode is uneven due to the fact that metal acid radical ions generated in the electrochemical reaction process of the bar are adhered and deposited on the surface of the bar is effectively solved, so that the needle tip of the prepared needle-shaped electrode has better surface smoothness.

The utility model relates to the technical field of pearly-grade glass flake grinding, and discloses a glass flake grinding device which comprises a grinding cylinder, a driving assembly and a grinding block, one end of the grinding cylinder is open, the grinding block is movably arranged in the grinding cylinder, the driving assembly is used for driving the grinding block to rotate in the circumferential direction of the grinding cylinder, and the grinding block is driven by the driving assembly to rotate in the circumferential direction of the grinding cylinder. And a flexible layer is arranged on the surface of the grinding block. According to the application, the flexible layer is arranged on the grinding block for stirring, so that the surface of the glass flake can be prevented from being abraded in the stirring process, the surface smoothness of the glass powder is improved, the phenomenon that nano particles cannot be uniformly deposited on the surface of the glass is improved, and the product quality is improved.

A problem to be addressed by the present invention is to enable a plating layer having excellent surface smoothness to be formed without compromising the various excellent properties inherent in polyphenylene sulfide resins, and to provide a plated molding which is excellent in adhesiveness of the plating layer and ensures high plating quality even in severe environmental degradation tests such as thermal shock cycle tests as well as a method of producing thereof. To solve the above problem, a main object of the present invention is to provide plated molding having a plating layer formed on a part or all of the surface of the molding that is molded with a polyphenylene sulfide resin composition including 30 to 200 parts by weight of a fibrous filler (B) based on 100 parts by weight of a polyphenylene sulfide resin (A), wherein an arithmetic mean roughness of the surface of the plating layer of the plated molding is 1.5 µm or less.

The preparation method of the yellowing-resistant nylon particle composite material comprises the following steps: S1, weighing 100 parts by weight of nylon, and adding the nylon into a reaction kettle; s2, adding 2, 2, 2-trifluoroethanol as a solvent into the reaction kettle, and stirring to form a uniform nylon dissolving solution; s3, conveying the nylon dissolving solution into a spray dryer through a peristaltic pump, and performing atomization, drying and powder collection under the protection of nitrogen; s4, placing the powder in a vacuum drying oven, and drying at 25 DEG C for 3 hours to obtain nylon powder; s5, mixing the nylon powder with the following raw materials in parts by weight: 1-2 parts of an ultraviolet light absorber, 1-2 parts of a hindered phenol antioxidant, 2-4 parts of adipic acid, 0.5-1.5 parts of sebacic acid, 0.1-0.5 part of dicumyl peroxide and 8-10 parts of silane coupling agent modified mica powder; and S6, carrying out melt blending on the mixture obtained in the step S5 in a twin-screw extruder to obtain the yellowing-resistant nylon particle composite material.

The utility model relates to the technical field of grinding rollers, in particular to a surfacing repair device for a grinding roller of a vertical mill. The cushion block is arranged at the top of the lower plate; the upper plate is arranged at the top of the cushion block; the fixed folded plate is arranged on the upper plate; the supporting legs are arranged at the bottom of the lower plate; the rotary table is rotationally arranged on the upper plate, and the rotary table is used for placing a grinding roller sleeve; the clamping component is arranged at the top of the rotary table and is used for clamping the grinding roller sleeve on the rotary table; and the grinding part is arranged on the upper plate and used for grinding the outer wall of the grinding roller sleeve. According to the surfacing repair device for the grinding roller of the vertical mill, through the technical scheme, the problems that in the prior art, surfacing materials are prone to forming an uneven surface in the stacking process, the surface smoothness of a roller sleeve of the grinding roller is low, and the subsequent use effect of the roller sleeve of the grinding roller is affected are solved.

The utility model discloses a high-strength glass fiber pipe with a paint-free and highlight surface, which is characterized in that the pipe wall of the glass fiber pipe comprises an inner PET (polyethylene terephthalate) cloth layer, a middle structure layer and an outer PET cloth layer from inside to outside, the middle structure layer comprises a resin layer formed through a compression molding process and glass fiber filaments distributed in the resin layer or a plurality of glass fiber rods penetrating through the resin layer and extending in the axial direction, and pores of the outer PET cloth layer are filled with resin permeating outwards in the compression molding process; pores of the inner PET cloth layer are filled with resin which permeates inwards in the mold pressing process. During forming, part of resin of the resin layer penetrates through and fills pores of the outer PET cloth layer and the inner PET cloth layer, so that the surface smoothness is improved; by means of the colors of the outer PET cloth layer and the inner PET cloth layer, surface processing is not needed, the bottom exposure phenomenon is avoided, the production steps are simplified, the production efficiency is improved, and the production cost is reduced; and the resin penetrates through the outer PET cloth layer and the inner PET cloth layer to form an interlocking structure, so that the interlayer peeling strength is improved, and layering is prevented.

The invention belongs to the technical field of electric mechanism tests, and relates to an electric mechanism balancing detection loading device and method, and the device comprises a loading unit and a control unit. The loading unit is used for loading the tested electric mechanism; the control unit is used for controlling the loading unit to simultaneously acquire the load and the displacement of the tested electric mechanism under load; and whether balancing is carried out or not is judged according to the load and displacement of the loaded electric mechanism. The loading unit comprises a reduction gear motor, a chain, a magnetic powder clutch, a rack, a displacement sensor and a tension and compression sensor; the reduction gear motor drives the magnetic powder clutch through a chain; the magnetic powder clutch drives the rack, one end of the rack is connected to the loading platform after being connected with the displacement sensor, the other end of the rack is connected with the tested electric mechanism, and the other end of the tested electric mechanism is connected to the loading platform after being connected with the tension and compression sensor.

This invention belongs to the field of papermaking and provides a high-efficiency antibacterial and mildew-resistant liquid crystal glass spacer paper and its preparation method. It includes: (1) Base paper preparation process: 100% bleached softwood pulp is selected as fiber raw material, pulped to 22-28°SR, without adding any wet end additives to ensure the cleanliness of the base paper, formed on the wire in the headbox, and then dewatered in the press section to obtain a basis weight of 48-52 g / m 2 (2) Surface treatment process: Select hydrophobically modified polyvinyl alcohol, mildew inhibitor and water-resistant agent to prepare surface sizing solution, the concentration of surface sizing solution is 2-4%, and apply sizing solution to the surface of the base paper, the amount of sizing is 0.8-2g / m 2 After drying in a drying cylinder, the material is calendered and then rolled to obtain a high-efficiency antibacterial and anti-mildew liquid crystal glass spacer. The liquid crystal glass spacer prepared by this method has good hydrophobic properties and anti-mildew effect, while also taking into account the characteristics of high cleanliness, low electrical conductivity, and high surface strength.

The present application discloses a micro-electromechanical structure and a manufacturing method thereof, a wafer, a microphone and a terminal. The manufacturing method comprises: forming a first back plate above a substrate; forming a second sacrificial layer on the first back plate; forming a diaphragm on the second sacrificial layer, the diaphragm extending to the substrate along the side wall of the second sacrificial layer and the side wall of the first back plate; and removing part of the second sacrificial layer, with the remaining second sacrificial layer serving as a second supporting portion. The manufacturing method reduces the risk of the release liquid corroding the side wall of the second sacrificial layer during the release process by allowing the diaphragm to cover the side wall of the second sacrificial layer.

The application provides a UV white ink and a preparation method thereof. The preparation raw materials of the UV white ink include, in parts by weight, 3-15 parts of silicone-modified acrylate prepolymer, 30-90 parts of monofunctional monomer, 1-10 parts of bifunctional monomer, 3-10 parts of photoinitiator, 1-15 parts of titanium white, 0.1-5 parts of dispersant and 0.1-5 parts of auxiliary agent. The silicone-modified acrylate prepolymer is used to improve the flexibility, smoothness and water resistance of the ink layer, and the specific functional monomer compound system is used to inhibit the curing shrinkage and enhance the adhesion, so that the UV white ink with excellent comprehensive performance is obtained, and is suitable for the inkjet printing of silica gel labels.

The invention relates to the technical field of steel wire rods, and discloses a corrosion-resistant low-carbon steel wire rod with deformation performance and a preparation process thereof.The corrosion-resistant low-carbon steel wire rod comprises 0.04%-0.15% of C, 0.7%-0.9% of Mn, 0.05%-0.14% of Si, 0.015%-0.02% of P, 0.02%-0.07% of S, 0.02%-0.03% of Cr, 0.02%-0.03% of Ni, 0.008%-0.025% of Al, 0.03%-0.04% of Si, 0.056%-0.068% of Cu, 0.0024%-0.0038% of S0, 0.25%-0.30% of Mn, 0.015%-0.025% of Als, 0.007%-0.009% of Ce, 0.004%-0.006% of La and the balance Fe and inevitable impurities. By means of the process, the steel wire rods are stably produced in batches, the steel wire with the excellent surface quality and the zinc coating is obtained, the steel wire rod is suitable for being erected in coastal areas and areas with industrial pollution or heavy salt mist, not prone to corrosion and long in service life, the production raw materials are researched and improved, the steel wire rods are improved fundamentally, and the production cost is reduced. The use efficiency of the steel wire rod is greatly improved, and the deformation performance and the corrosion resistance of the steel wire rod are improved.

The utility model discloses a film surface acoustic wave resonator and a film surface acoustic wave filter, and relates to the field of semiconductor devices, at least one intermediate layer is inserted into at least one dielectric layer of the film surface acoustic wave resonator, so that the physical strength of the dielectric layer inserted with the intermediate layer can be improved, and the relatively thin dielectric layer has a relatively good fracture prevention effect; and for the relatively thick dielectric layer, the middle layer can help to improve the flatness and the surface smoothness in the material growth or sputtering process, so that the relatively thick dielectric layer can avoid relatively large roughness in the forming process. And the thickness of each inserted middle layer is less than 0.2 lambda, so that the propagation of a main acoustic mode is not directly influenced, but for other miscellaneous modes, due to the difference of acoustic propagation paths, reflection is generated at the positions of the middle layers to a certain extent, so that the resonance condition of the miscellaneous modes is destroyed, and the energy dissipation is reduced. And the energy is further limited in the reflection region, so that the Q value of the resonator can be further improved.

The invention relates to a semiconductive compound composition and a preparation method thereof. In particular to a semiconductive compound composition and a preparation method thereof, the semiconductive compound composition comprises a base resin and carbon black, the base resin is formed by mixing two ethylene butyl acrylate resins with same non-melting indexes, and the volume of the carbon black in the semiconductive compound composition accounts for more than 60% of the volume of the total composition.