461 results about "Fiber layer" patented technology

A vehicular compartment sound proofing structure includes a partition member 12 that partitions the vehicular compartment, a sound absorbing layer 14 having spaces therein, an air impermeable layer 30 made of air impermeable material, and a compressed fiber layer 32A mainly formed of a compressed mass of fibers. Connection strength between the compressed fiber layer 32A and the air impermeable layer 30 is lower than connection strength between the air impermeable layer 30 and the sound absorbing layer 14. Accordingly, antiresonance arises between resonance due to the resonance transmission and resonance by stretching of the sound absorbing layer 14 (refer to 10A). This improves insertion loss in the middle frequency band and soundproofing performance with respect to sound in the middle frequency band is improved.

The invention discloses a carbon fiber prepreg, a preparation method thereof and a carbon fiber composite material, and relates to the technical field of advanced material compounding. The carbon fiber prepreg comprises a carbon fiber layer, a first resin matrix and a second resin matrix, the carbon fiber layer is coated with the first resin matrix, and gaps in the carbon fiber layer are filled with the first resin matrix; the first resin matrix is coated with the second resin matrix, and the second resin matrix comprises toughening particles; carbon fiber monofilaments of the carbon fiber layer have preset diameters which are larger than or equal to a preset threshold value. The carbon fiber composite material prepared from the carbon fiber prepreg has excellent compression performance, and the impact resistance, durability and other performance of the composite material can be effectively improved.

The invention discloses a high-toughness high-temperature curing epoxy resin prepreg for automatic fiber placement and a preparation method of the high-toughness high-temperature curing epoxy resin prepreg, and belongs to the technical field of resin-based composite materials. The whole high-toughness high-temperature curing epoxy resin prepreg for automatic fiber placement is of a layer structure and is formed by sequentially compounding a high-viscosity surface layer adhesive film, a high-toughness high-temperature curing epoxy resin layer adhesive film and a reinforced fiber layer by adopting a hot melt adhesive film method. According to the high-toughness high-temperature cured epoxy resin prepreg, the toughness is greatly improved, the long storage period can be guaranteed, the viscidity maintaining time is long, the outstanding comprehensive performance is achieved, and the manufacturability use requirement of automatic fiber placement prepreg can be met.

The invention provides a silicon carbide fiber-copper composite bonding wire and a preparation method thereof, and relates to the technical field of electronic materials. The preparation method of the silicon carbide fiber-copper composite bonding wire comprises the following steps: pre-plating copper on the surface of silicon carbide fiber to obtain copper-coated silicon carbide fiber; laying copper-coated silicon carbide fibers to obtain a copper-coated silicon carbide fiber layer, then constructing a copper alloy layer on the copper-coated silicon carbide fiber layer by using composite copper powder, then arranging the copper-coated silicon carbide fiber layer on the surface of the copper alloy layer again, and repeating the operation to obtain a composite wire blank in which the copper-coated silicon carbide fiber layers and the copper alloy layers are alternately arranged; and sequentially carrying out hot isostatic pressing treatment, drawing and aging treatment on the composite wire blank to obtain the silicon carbide fiber-copper composite bonding wire. The copper powder further comprises Ag, Hf and Sc, the metal elements can form fine and dispersed second-phase particles in the preparation process, and the strength of the copper bonding wire is remarkably improved through a precipitation strengthening mechanism.

The invention discloses a halogen-free low-smoke optical cable communication cable, and relates to the technical field of communication cables, the halogen-free low-smoke optical cable communication cable comprises an optical fiber assembly, a communication assembly is arranged on the outer surface of the optical fiber assembly, and a chemical protection assembly is arranged on the outer surface of the communication assembly. According to the halogen-free low-smoke optical cable communication cable, in order to enhance the mechanical strength of the cable, the protective sleeve can improve the impact resistance of the cable, the thin steel layer can provide mechanical strength for the cable, the armor layer on the outer layer is used for resisting external corrosion, and the smoke suppression layer additionally arranged between the armor layer and the thin steel layer can reduce smoke generated when the cable burns; the glass fiber layer is an important reinforcing and protecting structure in the cable, the buffer layer prevents the optical fibers from being broken and the conductors from being deformed, and when the cable is subjected to external impact force, lubricating oil stored in an oil tank flows into the surface of the armor layer and permeates into the outer surface of the thin steel layer through the smoke suppression layer. The cable has an effective protection effect on mechanical strength resistant components in the cable, and the outermost wear-resistant layer depends on certain rigidity and toughness.

The invention discloses an I-type initial fracture toughness analytical calculation method considering a fiber layering angle, and belongs to the technical field of composite material fracture mechanics, and the I-type initial fracture toughness analytical calculation method comprises the following steps: carrying out a DCB experiment; calculating I-type interlayer fracture toughness-crack length data according to data obtained by the experiment, and drawing an R curve; observing a crack propagation path of the sample in the experiment, and establishing a crack propagation mechanism model according to an observation result; according to the obtained crack propagation mechanism model, establishing an I-type layering initial fracture toughness analytical calculation method considering the fiber layering angle influence; and predicting the initial fracture toughness of the samples with different fiber laying layer angles. According to the I-type initial fracture toughness analytical calculation method considering the fiber laying layer angle, a new prediction tool based on a physical mechanism is provided for fracture analysis of a composite material, so that fracture behaviors of the material under different laying layer configurations can be predicted more accurately in a design stage, and the analysis accuracy of the I-type initial fracture toughness is improved. Therefore, the influence of experimental errors is avoided.

The present application relates to the field of disposable sanitary products, and particularly relates to an absorbent core with composite non-woven fabric, comprising a body, the body comprising an upper fiber layer, a lower fiber layer and an intermediate fiber layer clamped between the upper fiber layer and the lower fiber layer, the upper fiber layer, the lower fiber layer and the intermediate fiber layer are bonded to each other to form a bonding part, the area of the bonding part accounts for 5-100% of the area of the body, the fiber thickness of the upper fiber layer and / or the lower fiber layer is 4-12D, the fiber thickness of the intermediate fiber layer is 0.6-2D, the upper fiber layer and the lower fiber layer are inlaid with high molecular water-absorbing particles, the average pore of the upper fiber layer and the lower fiber layer is greater than the average diameter of the high molecular water-absorbing particles, and the average pore of the intermediate fiber layer is smaller than the average diameter of the high molecular water-absorbing particles. The present application solves the technical problem that the high molecular is prone to loss when the absorbent core is made of fluffy non-woven fabric.

The invention relates to a multi-layer glass fiber reinforced plastic production line, a production method and multi-layer glass fiber reinforced plastic, and relates to the field of glass fiber reinforced plastic production equipment.The multi-layer glass fiber reinforced plastic production line comprises a bottom film processing unit, a first fiber laying and gluing unit, a composite thickness determining unit, a heating and curing unit and a trimming and cutting unit which are sequentially arranged; the upper layer processing unit is capable of forming a top film gel coat on the top film and / or paving a second fiber layer on the top film and infiltrating a second resin adhesive on the top film and forming a semi-cured state, and the lower layer processing unit is capable of forming a second fiber layer on the top film and infiltrating a second resin adhesive on the top film and forming a semi-cured state. The composite thickness determining unit can lay the second fiber layer on the first fiber layer to form a composite glass fiber reinforced plastic material with a set thickness, and the composite glass fiber reinforced plastic material is heated and cured by the heating and curing unit and trimmed and cut by the trimming and cutting unit to form the composite glass fiber reinforced plastic, so that the production quality of the composite glass fiber reinforced plastic product can be ensured.

The invention discloses a Janus type flexible radiation refrigeration material and a preparation method thereof.The Janus type flexible radiation refrigeration material is characterized in that a modified radiation refrigeration layer and a functional layer are arranged on the upper surface and the lower surface of a substrate fiber layer with specific functional groups, and on one hand, the substrate fiber layer can be subjected to esterification or silanization bonding with the amino silane modified radiation refrigeration layer; the material can be subjected to an esterification reaction with a carboxylation modified functional layer, so that the three-layer material interface is chemically bonded, the bonding force of the interface is effectively improved, the dynamic stability is effectively improved on the basis of ensuring the optical performance and the mechanical flexibility, and the application of the radiation refrigeration material is promoted.

The invention discloses a composite hose structure for fuel gas transmission, and relates to the technical field of fuel gas transmission and distribution equipment, the composite hose structure comprises a dual-mode quick sealing assembly, dual-mode monitoring is formed by an FBG sensor, a phase-sensitive optical time domain reflectometer and a carbon tube composite filament, the FBG sensor can capture fine strain of a reinforced fiber layer in real time, and the phase-sensitive optical time domain reflectometer can capture the fine strain of the reinforced fiber layer in real time; the phase-sensitive optical time domain reflectometer detects and captures stress waves generated by crack propagation in a material through broadband sound waves, early recognition of millimeter-level damage in a pipe is achieved, grids woven by carbon tube composite filaments are utilized, continuity of the grids is monitored in real time through alternating-current impedance measurement, and the detection accuracy of the millimeter-level damage in the pipe is improved. When local grid resistance is increased due to breakage of the reinforced fiber layer, a micro-damage area can be accurately positioned, when leakage occurs, the memory alloy spring receives an electric signal monitored by a dual-mode, then axial thrust is generated to push the outer side of the fluororubber sealing ring, the fluororubber sealing ring expands in the radial direction under the thrust action of the memory alloy spring, and the leakage is prevented. And rapid and effective mechanical hard sealing is realized.

The utility model discloses a composite core mold which comprises a lining layer, a metal reinforcing layer and an outer covering layer which are sequentially connected from inside to outside, the axial length of the metal reinforcing layer is smaller than the axial length of the lining layer and the axial length of the outer covering layer, sealing layers are arranged on the two axial end faces of the metal reinforcing layer respectively, and the inner surfaces of the sealing layers are connected with the outer surface of the lining layer. The outer surface of the sealing layer is connected with the inner surface of the outer covering layer, and the metal reinforcing layer continuously stretches across the heavy load bearing area. The metal reinforcing layer with low cost and high bending modulus is additionally arranged between the two fiber layers, so that compared with a traditional pure fiber core mold, the core mold has the advantages that the bending modulus is higher, the cost is low, the bearing limit is larger, the weight is lighter under the condition of the same bearing performance, and the core mold is easier to transport; meanwhile, the sealing layer is arranged to prevent dissimilar metal pollution, and the winding quality of foil products is guaranteed; by ensuring the roundness of the metal reinforcing layer, the processing efficiency of the outer covering layer is improved, and the process difficulty is reduced.

Chopped carbon fibers are generally used for reinforcing composite materials, but traditional chopped fibers are not uniformly distributed in a matrix, so that the anisotropy problem is caused; according to the three-dimensional skeleton structure, fibers are arranged in a three-dimensional space through process optimization, traditional two-dimensional stacking is different, and the multi-directional mechanical property of the material is effectively improved; the fibers are arranged along a specific direction by utilizing magnetic field assisted orientation, so that the orientation strength of the composite material is improved; the fiber layers with different orientations are stacked to form a more complex stacked structure; the microstructure of the material is optimized through temperature and pressure dynamic aging process changes in the material forming process; the new process integrates a plurality of innovation points, and the comprehensive performance of the composite material is optimized through fiber pretreatment and three-dimensional orientation arrangement under the assistance of a magnetic field in combination with lamination forming and dynamic aging treatment processes; the process breaks through the bottleneck of anisotropy and interlayer failure of a traditional composite material through the synergistic effect of magnetic field-assisted three-dimensional orientation and dynamic aging, and is suitable for the field of high-added-value new materials.

The invention provides a high electromagnetic shielding color fiber and a preparation method and application thereof. The high electromagnetic shielding color fiber comprises a matrix fiber layer, an optical inert material layer attached to the surface of the matrix fiber layer, and an electromagnetic shielding functional coating attached to the surface of the optical inert material layer. According to the method, the fiber material is subjected to thermal annealing treatment at different temperatures, so that the obtained fiber material presents bright and high-saturation surface colors. And the obtained fiber material has high electromagnetic shielding capability, does not influence the original mechanical properties, can greatly improve the flame retardant property and oxidation resistance of the fiber material, and has good extreme environment service resistance.

The invention relates to the technical field of composite materials, in particular to a hybrid fiber composite material billiard cue. The hybrid fiber composite billiard cue comprises a front support and a rear handle, wherein the front support comprises a first core body, a first fiber layer and a first reinforcing layer, and the first fiber layer and the first reinforcing layer are sequentially stacked on the outer circumferential surface of the first core body; the rear handle is detachably connected with the front support; the rear handle comprises a second core body, and a second fiber layer, a second reinforcing layer and a protective layer which are sequentially stacked on the outer peripheral surface of the second core body; the first reinforcing layer and the second reinforcing layer each comprise a three-dimensional woven structure composed of various fibers. According to the design, the first reinforcing layer and the second reinforcing layer are arranged to be of the three-dimensional woven structure formed by weaving various fibers and are matched with the protective layer, the first fiber layer and the second fiber layer, the light weight and the corrosion resistance are guaranteed, and meanwhile the mechanical performance of the front branch and the rear handle in multiple directions is enhanced; the service life is prolonged; and the use experience is improved.

The embodiment of the invention provides an online detection method, device and equipment for a fiber-wound composite gas cylinder and a medium, and belongs to the technical field of fatigue detection. The method comprises the following steps: acquiring a grating sensing signal of a target gas cylinder in an operation process, wherein the grating sensing signal is acquired by an FBG sensor pre-embedded in a fiber layer of the target gas cylinder; extracting a strain detection signal according to the grating sensing signal; determining a predicted damage area of the target gas cylinder according to the strain detection signal; determining a scanning path according to the predicted damage area, and obtaining ultrasonic detection data through ultrasonic phased array scanning based on the scanning path; and based on the predicted damage area, damage information of the target gas cylinder is determined according to the strain detection signal and / or the ultrasonic detection data, and the damage information comprises a damage position and a damage type. The invention aims to realize the damage state detection of the gas cylinder in the operation process and improve the use safety of the gas cylinder.

The present invention relates to the field of fiber composite material parts, and discloses a boom machine, a fiber composite material part, and a production method and production line thereof, the production method comprising: a spiral fiber winding step (S10) of spirally winding a resin-infiltrated fiber yarn onto the outer peripheral surface of a part main body expansion core mold (1) to form a spiral fiber layer (4); a circumferential fiber winding step (S11) in which a circumferential fiber (5) is spirally wound on the outer peripheral surface of the spiral fiber layer to form a circumferential fiber wound layer; and a rigid outer mold mounting and heating curing step (S20), in which the rigid outer mold (2) is mounted so as to surround the circumferential fiber winding layer, heat the spiral fiber layer, and extrude the spiral fiber layer toward the rigid outer mold to cure and shape the spiral fiber layer by expanding the workpiece main body expansion core mold. The production method and the production line are beneficial to improving the production efficiency of the fiber composite material part, and can ensure that the fiber composite material part has better surface quality and mechanical property.

To provide a termite-proof heat insulating material and a termite-proof method capable of continuously protecting the heat insulating material from termites.SOLUTION: A termite-proofing heat insulating material 2A includes a heat insulating layer 20 having a first surface in contact with a base 1 of a building, a communication layer 30 provided on a second surface of the heat insulating layer 20 opposite to the first surface, and a fiber layer 70 provided on a side of the communication layer 30 opposite to the heat insulating layer 20 and including a nonwoven fabric. The communication layer 30 has a first surface portion, a second surface portion, and a main body portion connecting the first surface portion and the second surface portion, the first surface portion and the second surface portion are formed in a flat plate shape and are disposed at an interval in a thickness direction, and the vertical communication portion 41 is a space formed between the first surface portion and the second surface portion.SELECTED DRAWING: Figure 7

The invention relates to the technical field of civil air defense doors, in particular to a composite material civil air defense door and a manufacturing method thereof.The composite material civil air defense door comprises a door plate assembly, the door plate assembly comprises a panel, a first fiber layer and a filling layer, the panel is arranged on the outer side of the first fiber layer, and the first fiber layer is arranged on the outer side of the filling layer; the panel, the first fiber layer and the filling layer are integrally formed, the reinforcing rib assembly is arranged on the panel and used for reinforcing the panel, the reinforcing rib assembly comprises a second fiber layer and a bonding layer which are arranged in a stacked mode, the second fiber layer comprises one or more of high-strength glass fiber cloth or glass fiber felt, and the bonding layer is arranged between the second fiber layer and the bonding layer. The weight of the protective air-tight door is reduced by 60%, the product structure is simple, the production efficiency is improved by more than 50%, later transportation and on-site installation of the product are facilitated, and the protective air-tight door has the advantages of good production efficiency and cost.

The invention provides a hot-blast stove pipeline gap repairing method which comprises the following steps: detecting a cracking gap of a hot-blast stove pipeline, mixing a repairing fiber layer with first repairing slurry to form a first mixed fiber layer, and putting the first mixed fiber layer into the cracking gap; and the damaged gap is filled with the first repairing slurry until the cracking gap is flat. The method has the beneficial effects that the repairing fiber layer and the first repairing slurry are mixed, the first mixed fiber layer is placed in the crack gap, large-scale brick replacement is not needed, the purchase cost and the manual construction cost are reduced, repairing can be rapidly completed, the repairing period can be shortened, and hot air can be effectively prevented from flowing.

The invention relates to the technical field of composite material forming, and provides a fiber composite material barrel forming method which comprises the following steps: laying a fiber layer on the outer side surface of a barrel mold by fiber materials; carrying out pre-curing treatment on the fiber layer; the fiber layer is pulled to move on the outer side face of the barrel mold in the traction direction; laying a second fiber layer; carrying out pre-curing treatment; repeating the previous steps to form all fiber layers; and performing final curing treatment to obtain a barrel finished product. In this way, the multiple fiber layers are sequentially laid in the traction direction, and pre-curing treatment is carried out after laying of each fiber layer is completed. And therefore, the adhesive force with the cylinder mold is reduced, and the cylinder mold can move along the axial direction. The continuous laying of the fiber layer and the continuous forming of the barrel finished product are realized. And meanwhile, the length of a barrel product can be cut according to the design requirement, the length of the barrel product is not limited by the length of a barrel mold, and the flexibility is good. The invention further provides a production line.

An X-band high-efficiency absorber based on dispersive materials and resin belongs to the field of electromagnetic absorbing materials technology. The absorber consists of an N-layer structure, each layer being a combination of two fiber-reinforced laminates. The first fiber-reinforced laminate is a cross-shaped fiber laminate, with a square cross-section of the base portion having a side length of w, made of resin. The fiber portion has a cross-shaped cross-section, and the width of the fiber in the i-th layer is x. i Another type of fiber-reinforced laminate is an X-shaped fiber laminate. The base portion has a square cross-section with a side length of w, and is made of resin. The fiber portion is obtained by rotating the fiber portion of a cross-shaped fiber laminate around its center by 45°. The high-efficiency absorber proposed in this invention, based on dispersive materials as fibers and resin as a substrate, can achieve electromagnetic wave attenuation of over -20dB in the X-band (8GHz-12GHz) through excellent design. It achieves the absorption effect by converting electromagnetic energy into heat energy through dielectric loss.

The invention provides a low-temperature thermoplastic fiber composite board as well as a preparation method and application thereof, and belongs to the technical field of composite boards. Low-temperature thermoplastic resin and a fiber material are adopted as raw materials, prepreg is obtained through a softening impregnation method, a melting impregnation method, a powder impregnation method or a fiber and resin mixed impregnation method, the prepreg is put into a mold, hot press molding, cooling solidification and cutting are sequentially conducted, and the low-temperature thermoplastic fiber composite board is obtained. The fiber layer is impregnated in the low-temperature thermoplastic resin for hot press molding, different performance requirements of a target plate are met while the strength is improved by adjusting the spreading and compounding mode of the fiber layer, so that different clinical use requirements are met, low-temperature thermoplastic is achieved by impregnating the low-temperature thermoplastic resin, the bending modulus of the material is remarkably improved, and the material has a good application prospect. The high-strength low-temperature thermoplastic fiber composite board can be directly shaped and corrected on the body of a patient, and can fit the contour of the body of the patient and improve the comfort of the patient.

The application provides a door post cover and a preparation method thereof. The door post cover comprises a door post cover plate body, a handrail mounting area is arranged on the door post cover plate body, a transition area one is arranged between the lower part of the handrail mounting area and the door post cover plate body, the door post cover plate body comprises a cover plate common area one and a cover plate common area two, the handrail mounting area comprises a transition area two, a handrail common area and a transition area three, the transition area three extends to the cover plate common area one and the cover plate common area two respectively, the innermost side and the outermost side of the cover plate common area one, the cover plate common area two, the handrail common area, the transition area one, the transition area two and the transition area three are respectively an inner glass fiber layer and an outer glass fiber layer, and a carbon fiber layer is arranged between the inner glass fiber layer and the outer glass fiber layer. The preparation method is realized by die forming or hot press tank forming. The application solves the problems of large density, easy deformation and complex process of the current door post cover, and has the advantages of low cost, high efficiency and batch production.

The invention relates to an assembly (1) comprising at least a first composite component (2) made of a ply (4) of unidirectional fibre layers (41, 42, 43, 44, 45) in a thermoplastic or thermosetting matrix, the component (2) being intended to be connected to a second component (3) by means of a connection region (21), the support edge (22) of the component (2) being in contact with the support edge (32) of the second component (3), the assembly (1) comprises means (5) for connecting the first part with the second part. In the vicinity of the connecting area, the first part is composed of a laying layer (4), the laying layer is formed by stacking one-way layers (41, 42, 43, 44 and 45), and the fiber orientation angles of every two adjacent one-way layers are different. At least one cavity (6) is arranged in the first part in the vicinity of the connecting region, is parallel to the contact surface and is arranged in a direction perpendicular to the direction of the unidirectional layer (41, 42, 43, 44, 45); according to the invention, at least one hole (7) perpendicular to the contact surface is provided, starting from its supporting edge (22) and opening into the cavity (6) for receiving a threaded element (51), while the cavity and the second part (3) serve as a support for fastening elements (52, 53). The hole (7) can also be drilled along an axis inclined relative to the contact surface.

The invention belongs to the technical field of filter materials, and particularly relates to an electret enhanced composite filter material and a preparation method thereof.The electret enhanced composite filter material comprises a PET fiber layer, an aramid nanofiber layer and an alkali-free glass fiber layer from top to bottom, and the mass ratio of the PET fiber layer to the aramid nanofiber layer to the alkali-free glass fiber layer is (30-60): (5-20): (20-50). According to the invention, the PET fiber layer is used as a supporting base material, so that good mechanical strength, structural stability and a preliminary filtering function are provided for the composite filter material; the aramid nanofiber layer is arranged, so that the filtering precision and efficiency of the composite filter material are remarkably improved; the alkali-free glass fiber layer is arranged, so that the filtering performance and the thermal stability of the composite filter material are further enhanced; the three-layer structure has a synergistic effect, so that the mechanical strength and economical efficiency of the filter material are considered while the filter precision of 0.1 mu m is realized, and the filter material has excellent comprehensive performance.

The utility model relates to a fireproof box cover, a battery pack and a vehicle. The fireproof box cover comprises a first fiber layer, a metal plate, a fireproof film and a second fiber layer, the first fiber layer, the metal plate and the second fiber layer are arranged in sequence, and the fireproof film is attached to the metal plate and located between the metal plate and the second fiber layer. The first fiber layer, the metal plate, the fireproof film and the second fiber layer are of an integrated structure. The fireproof box cover disclosed by the utility model is good in shape follow-up degree, the fireproof performance of the box cover is improved through the fireproof film, flame retardance and heat resistance are effectively realized, the spreading of thermal runaway in a battery pack is avoided, the safety of the battery pack is enhanced, the weight of the box cover is also favorably reduced, and fire-retardant plates such as mica plates do not need to be additionally arranged on the box cover.

The application discloses a high-durability micro-nano structure carbon ceramic composite brake disc and a preparation method thereof. Gradient nanoparticle distribution is used to realize the synergistic optimization of surface protection and core Si infiltration efficiency. A high SiC concentration is used in the surface layer to inhibit the corrosion of molten Si through a double mechanism of physical blocking and chemical passivation, and the friction coefficient fluctuation is significantly reduced. A low SiC concentration is used in the outer layer to reduce the penetration resistance of molten Si, ensure the uniformity of Si infiltration, and reduce the difference in the thermal expansion coefficient. Meanwhile, the lamination needling process improves the performance through a double mechanism of mechanical interlocking and fiber orientation optimization. The needling density of 12-20 needles per unit area makes the barb of the needle penetrate the carbon fiber layer to form a physical anchor, the needling process optimizes the Si infiltration channel, the interlayer gradient structure and the three-dimensional network formed by needling disperse the braking stress, and the interface debonding risk is reduced. In the high-strength frequent braking scene, the crack initiation probability is reduced, the local stress of the brake disc is reduced, the wear rate is effectively reduced, and the braking process is more stable.

The utility model relates to the technical field of plane conveying belts, and discloses an anti-static plane conveying belt which comprises an outer frame, a centering mechanism is fixedly connected to the surface of the outer frame, and an anti-static mechanism is connected to the surface of the outer frame in a threaded mode. According to the anti-static plane conveying belt, through the arrangement of the anti-static mechanism, the conductive fiber layer and the anti-static coating, when the anti-static plane conveying belt is used, the conductive fiber layer is installed on the surface of the conveying belt, and the surface of the conductive fiber layer is coated with the anti-static coating, on one hand, generation of static electricity is further prevented; the electrostatic electrification phenomenon caused by contact and separation of an object and the surface of the conveying belt is reduced; and on the other hand, when a small amount of static electricity breaks through defensive lines of the conductive fiber layer, the anti-static coating can rapidly neutralize and dissipate the residual static electricity, it is ensured that the surface of the conveying belt is in a low-static state all the time, the residual static electricity is conveyed to the ground in cooperation with conductive pieces, wires and ground pestles arranged on the two sides, and the safety of operators and surrounding equipment is guaranteed.

The present invention relates to the technical field of axial motors. Disclosed are a retainer fabricating method, a rotor structure fabricating method, a rotor structure, and an axial motor. The retainer fabricating method comprises the steps: fabricating a reinforcing plate, wherein gaps for reducing eddy current loss are formed in at least one reinforcing plate tooth on the reinforcing plate, and a connecting section is arranged between the end parts of the gaps close to a tooth top side and the tooth top side of the reinforcing plate tooth; fabricating an initial retainer, wherein a fiber layer and the reinforcing plate are placed in a mold, fiber layer teeth of the fiber layer are arranged corresponding to the reinforcing plate teeth of the reinforcing plate, the initial retainer is formed by means of heating and curing, and supporting parts of the initial retainer are formed at the positions of the fiber layer teeth and the reinforcing plate teeth; and fabricating a finished retainer, wherein the connecting sections of the reinforcing plate teeth of the reinforcing plate in the initial retainer are removed, so that the gaps are communicated with the tooth top sides of the reinforcing plate teeth, and the finished retainer is formed. The retainer fabricating method provided in the present invention ensures the effectiveness of slotting of the reinforcing plate in the retainer.

The invention belongs to the technical field of intelligent controlled-release antibacterial packaging, and particularly relates to a double-sided heterostructure humidity triggering fresh-keeping pad based on the MOFs confinement effect and a preparation method and application of the double-sided heterostructure humidity triggering fresh-keeping pad. According to the design of the fresh-keeping pad, high-sensitivity sensing of microenvironment humidity fluctuation and intelligent reversible and accurate controlled release of active ingredients are achieved, and the long-term stability of the active ingredients is remarkably improved. A double-sided heterogeneous fiber membrane design is adopted, and a stable hydrogen bond and physical cross-linked network is constructed by utilizing the interface complementary characteristic of different fiber layers, so that the material is endowed with excellent reversible swelling-shrinking capability in a wide humidity range; the structure collapse easily caused by a single material is effectively avoided, the problem of active ingredient explosive release caused by the structure collapse is thoroughly solved, and the repeatability and long-term stability of intelligent response are remarkably improved; due to the heterostructure design, one-way efficient transmission of water is ensured, water management is optimized, the overall fresh-keeping performance is further improved, and wide application prospects are achieved.