850 results about "Thin sheet" patented technology

Provided is a three-dimensional pattern card and a method of manufacturing the same. The method includes: (a) preparing a master mold in which a pattern of a three-dimensional shape is engraved on one surface; (b) fabricating a three-dimensional pattern module by forming a three-dimensional pattern on a surface of a transparent sheet made of a synthetic resin material using the master mold; (c) fabricating a rear card body module by sequentially laminating and bonding a first core sheet, an antenna inlay sheet, a second core sheet, and a rear protective sheet; (d) applying a UV adhesive to a surface of the first core sheet of the rear card body module; and (e) laminating the three-dimensional pattern module on the UV adhesive applied surface of the rear card body module and irradiating UV to cure the adhesive so as to bond the rear card body module and the three-dimensional pattern module.

To highly accurately calculate a lamination deviation amount between two layers of a laminated sheet body.SOLUTION: The sheet body 2 has a first sheet body 3 and a second sheet body 4 which are alternately laminated. The first sheet body includes a first mark 3334 and first through-holes 30c, 30d. The second sheet body includes a second mark 4344 and second through-holes 440c, 40d. The first marker is formed such that the first direction D1 can be specified. The second mark is formed so that the second direction D2 can be specified. When the first sheet element is accurately stacked on the second sheet element, the second mark is located at a predetermined second ideal position with respect to the first mark. When the second sheet element is accurately stacked on the first sheet element, the first mark is located at a predetermined first ideal position with respect to the second mark. In the upward view, the positional relationship between the position of the first marker and the second ideal position with respect to the first direction coincides with the positional relationship between the position of the second marker and the first ideal position with respect to the second direction.SELECTED DRAWING: Figure 6

The present invention concerns a paper-based barrier multilayer packaging material structure (1) being formed as a unitary sheet and comprising from its outer surface to its inner surface, the following layers: —a polymer dispersion coating (9) having a thickness of 1 to 10 μm, —a paperboard (8) having a grammage of between 120 g / m2 and 500 g / m2, —a water-based or solvent-less adhesive (7) having a thickness of 1 to 10 μm, —a barrier metallized paper layer (MBPL) having substance weight between 30-120 g / m2, preferably 45 to 90 g / m2 and a Water Vapour Transmission Rate (WVTR) of 10 to 0.1 g / m2 / d, preferably a WVTR of 1.0 to 0.1 g / m2 / d measured at 38° C. and 90% RH, and an Oxygen Transmission Rate (OTR) comprised between 100 and 0.1 cc / m2 / d, measured at 23° C. and 50% RH, preferably an OTR comprised between 1.0 and 0.1 cc / m2 / d. —at least one layer of a polymer dispersion coating (2) having a thickness of 1 to 25 μm, preferably of 5 to 15 μm.

A pressure sensing conductive elastomeric composite material, the material comprising a polymer matrix, itself comprising an elastomeric material, and a conduction network within the polymer matrix. The conduction network comprises: a plurality of particle chains, with each particle chain comprising a plurality of metallic ferromagnetic particles, a plurality of liquid metal droplets, and a plurality of non-ferromagnetic conductive platelets, wherein the conductivity of the composite material varies as a function of the pressure applied to the material.

The invention relates to the technical field of material sealing, in particular to a high-performance insulating ceramic sealing method for a neutron tube, which comprises the following steps: sequentially carrying out organic solvent ultrasonic cleaning and argon plasma etching activation treatment on a sealing surface of a cylindrical high-purity aluminum oxide ceramic piece, and depositing a titanium transition layer through magnetron sputtering, the ceramic piece with the titanium transition layer is obtained; the sealing face of the kovar alloy cylindrical flange plate is subjected to acid pickling, an oxide layer is removed, cleaning and drying are conducted, and a metal sealing part is obtained; preparing an active brazing filler metal sheet; the components are assembled in sequence to form a pre-assembled component; the pre-assembled component is placed in a vacuum brazing furnace, axial pre-tightening force is applied to the pre-assembled component, sealing is completed, then cooling is controlled, and a sealing piece with an airtight brazing joint is formed; and carrying out annealing treatment to obtain a finished product sealing assembly. Therefore, the problems of low dielectric strength, large thermal expansion coefficient difference, difficulty in interface quality control and the like in the prior art are solved.

A method for producing an extruded plastic sheeting material (12; 12′; 12″) having a multitude of parallel hollow chambers (14) in its interior, includes the steps of extrusion of a sheet of the sheeting material (12; 12′; 12″) that is continuous in the running direction (x) of the hollow chambers (14) while applying compressed air to the hollow chambers (14) from the inside, the production of weakening lines (16) in the sheet running transversely to the running direction (x) of the hollow chambers (14) by introducing creases (50) into the sheeting material (12), the depth of which is dimensioned in such a way that the hollow chambers (14) are not interrupted by the creases (50).

The invention discloses a low-loss high-frequency transformer based on nanocrystalline alloy, and belongs to the technical field of transformers, the low-loss high-frequency transformer comprises a mounting plate, an n-shaped framework, a columnar magnetic core, a winding and a protective heat dissipation mechanism, the columnar magnetic core is of a three-column type composite structure and is formed by staggering and laminating nanocrystalline thin film layers and ferrite sheet layers, a stepped air gap structure and an insulating isolation layer are arranged on the outer surface; and the winding leading-out end is connected with an external circuit through symmetrically distributed plug connectors. The protective heat dissipation mechanism is composed of an epoxy layer containing boron nitride filler, a heat conduction ring, heat dissipation fins, a heat dissipation fan and a flow guide plate. The advantages of nanocrystalline and ferrite materials are combined, a composite heat dissipation system is matched, the magnetic core loss under the high-frequency working condition is remarkably reduced, temperature rise is effectively controlled, the insulation performance and assembly stability are improved, low-loss, high-efficiency and high-stability operation is achieved, and the requirements of the fields of new energy automobiles, photovoltaic energy storage and the like are met.

The invention belongs to the technical field of brazing, and particularly relates to a contact-shaped composite brazing filler metal and a preparation method and application thereof.The preparation method comprises the steps that a sheet made of a material A is obtained; stamping the sheet by using a stamping die so that the surface of the sheet is bent to form a plurality of trapezoidal grooves to obtain a honeycomb array structure sheet; solder paste is sprayed and printed in the trapezoidal grooves of the honeycomb array structure sheets, and the solder paste comprises brazing filler metal B and scaling powder; the honeycomb-shaped array structure sheet sprayed with the soldering paste is put into a reflow oven to be heated, the brazing filler metal B in each trapezoid-shaped groove is melted to form a protruding contact, and a contact-shaped composite brazing filler metal sheet is obtained; wherein the scaling powder is separated out in the heating process and flows to cover the outer surface of the contact-shaped composite brazing filler metal sheet; the high-strength composite welding spot can be prepared, and the characteristics of low-temperature welding and high-temperature application are achieved.

The present disclosure describes a method of making a composite product (20) by additive manufacturing. The method includes providing an additive manufacturing apparatus having a build platform, the build platform having a planar face on which the product is formed; securing a fabric (22) sheet to the planar face (11) to provide a planar fabric surface thereon; additively manufacturing an intermediate object on the planar fabric surface in the apparatus (12) by light polymerizing a dual cure resin to produce an intermediate object on the build platform, the intermediate object including the fabric (22) sheet having the three-dimensional object (21) adhered thereto; and concurrently with or following the additively manufacturing step, further curing the intermediate object to produce a composite object including the fabric sheet having the three-dimensional object adhered thereto. Composite object and products are also described herein.

The present invention addresses the problem of providing a multi-layer sheet comprising: an adhesive agent layer that contains an acid modified polyolefin; and a base material layer that contains a polyphenylene ether. The peeling strength of the adhesive agent layer and the base material layer is high. This multi-layer sheet is characterized by comprising: a base material layer (A) which contains 40-99.9 mass% polyphenylene ether (a1), 0-59.9 mass% polystyrene (a2), and an amino-group-containing polymer (a3); and an adhesive agent layer (B) which contains an acid modified polyolefin.

The utility model discloses a detector test strip fixing module convenient for non-professionals to use, which relates to the technical field of fast detection detectors and comprises a base and an insertion piece. When the kit is used, the bottom end of a reagent strip is fixed in the fixing groove and is matched with the fixing block to fix the reagent strip, and during detection, the sampling rod punctures the thin sheet A between the solution cavity and the communication cavity from top to bottom, so that a diluent with a sample enters the communication cavity and reaches the other side of the insertion sheet through the through hole; due to the fact that the bottom of the reagent strip is fixed in the fixing groove and makes contact with the diluent passing through the through hole, detection is achieved, the diluent is blocked below the first water blocking baffle and does not make direct contact with other parts of the reagent strip, and the purpose that the diluent gradually seeps to the top of the reagent strip is achieved; and therefore, the operation convenience and the accuracy of a detection result during detection by a non-professional user are further improved.

The article of the present application is used to store thin plate-like parts such as semiconductor wafers (substrates) for transport, storage, etc. Multiple articles of the present application can also be stacked for use.

The utility model relates to the technical field of bionic pressure sensors, in particular to a broadband wide piezoresistive sensing structure simulating scorpion threshold response characteristics, which comprises a threshold adjusting structure and a piezoresistive sensing unit. The threshold value adjusting structure comprises a flexible deformation cover and a threshold value sensing structure base, the flexible deformation cover covers the top end of the threshold value sensing structure base, the piezoresistive sensing unit is arranged in the threshold value sensing structure base, and a rectangular through groove is formed in the bottom of the threshold value sensing structure base; a threading hole is formed in the side wall of the threshold sensing structure base; the flexible deformation cover comprises a sheet, and the center of the lower surface of the sheet is integrally connected with an inverted-cone-shaped protruding block. The problems that the inherent contradiction exists between the sensitivity and the bandwidth performance of an existing piezoresistive sensor, in particular, structural instability under large signals is easily caused when the sensitivity is improved through a traditional design, and the response capacity to small signals is greatly reduced by increasing rigid support to expand the measuring range are solved.

A machine comprises a pick and place stage and includes a plurality of releasable connectors.A support material is wound over rollers onto a storage roller or spool. The backing support material provides a substantially flat surface upon which a sheet of flexible material is placed by the pick and place stage.The sheet of material and the backing support material are then wound onto the storage roller or spool which may be removed for storage and / or transportation.Delicate sheets of pieces of flat material, such as carbon fibre, may thus be protected from damage during handling, storage and transportation that may otherwise result in damage to the material.The process is reversed to lay down the material, for example into a mould, during manufacture of, for example, an aeroplane wing.

The invention relates to the technical field of computer vision and automatic control, and discloses an automatic checking method for the number of stacked sheet materials, which comprises the following steps: identifying a standard number table image to obtain a platform standard identifier and a material standard number; performing visual identification processing on the field material image, identifying a platform identification target and all material targets corresponding to the platform identification target, and obtaining position information of the material targets; identifying the platform identification target to obtain a platform analysis identifier; and outlier elimination processing and gap filling processing are carried out on the material target according to the position information. And finally obtaining a platform analysis identifier and a material analysis quantity. And matching the platform analysis identifier with the platform standard identifier, comparing the material analysis quantity corresponding to the matched platform with the material standard quantity, and outputting a verification conclusion according to a comparison result. Through the arrangement, accurate detection of the material quantity is realized, and the accuracy, the efficiency and the automation level of warehouse checking work are improved.

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 invention discloses a preparation method of a standardized sheet for a thermoelectric test of minerals or mineral materials and alloys, belongs to the technical field of mineralogy, material science and prospecting prediction, and establishes a preparation process of a universal mineral or mineral material and alloy thermoelectric sheet. Covering all semiconductor mineral types or mineral material types such as pyrite, magnetite, graphite and sintered ore; accurate thickness control is achieved through a double-face polishing-loading sheet supporting structure, in-situ testing of the thermoelectricity of minerals or mineral materials and alloys is achieved, and the testing precision is improved; by adopting a conductive adhesive-copper plate composite structure, the interface resistance is reduced, the supporting strength is met, and the requirement of eliminating detection interference is met; residual colloid is thoroughly removed through ultrasonic cleaning, and the insulation effect is avoided; according to the standardized sheet, the hollow aminated phenolic resin nanosphere is used as a conductive substrate and is used for bonding a sample and a copper plate, the contact resistance between the sample and an electrode can be greatly reduced, and the accuracy of test data is improved.

This invention provides a sheet manufacturing apparatus for homogenizing the in-plane moisture content of a sheet. The sheet manufacturing apparatus manufactures sheets from a fibrous material and includes: an accumulation section that accumulates the fibrous material by an airflow to form a sheet; a sheet conveying section having a conveyor belt that contacts and holds one side of the sheet; a humidification section disposed opposite to one side of the conveyor belt and supplying moisture from the other side of the sheet; and a suction section disposed opposite to the humidification section across the conveyor belt, the suction section having a plurality of suction ports for suctioning air, the humidification section having an outlet for discharging humidified air, and a first suction port and the outlet being arranged facing each other.

The invention discloses an aerosol generating product and an aerosol generating system.The aerosol generating product comprises an aerosol forming base material sheet and a magnetic heating body sheet, and the magnetic heating body sheet and the aerosol forming base material sheet are arranged in a stacked mode in the thickness direction and attached in the stacked area in a surface contact mode; the main heat conduction path directed from the magnetic heating element sheet to the aerosol-forming substrate sheet is a path passing through the thickness direction of the laminated region. Compared with the prior art, the magnetic heating body sheet and the aerosol forming base material sheet are laminated along the thickness direction, and the surface contact is realized in the lamination area, so that the main conduction path of heat from the magnetic heating body sheet to the base material is a short path passing through the lamination thickness direction; therefore, heat conduction distance is shortened, interface thermal resistance is reduced, and heating response speed and energy utilization rate are improved. And meanwhile, the base material is heated more uniformly, so that the aerosol generation efficiency and consistency are improved, and the risk caused by local overheating is reduced.

A semiconductor structure includes a dielectric strip disposed between a first source drain region and a second source drain region and physically separating the first source drain region from the second source drain region; a first silicide liner (160) located directly below the first source drain region; and a second silicide liner located directly below the second source drain region, where the first silicide liner is a different material than the second silicide liner.

The invention provides a sheet manufacturing apparatus which reduces the supply residue of powder with a simple structure. A sheet manufacturing apparatus (1) is characterized by comprising: a supply unit (200) for supplying a powder; a mixing unit (33) for mixing the fibers and the powder to form a mixture; a stacking unit (50) that stacks the mixture to form a web W; and a forming unit (70) that compresses the material sheet W to form a thin sheet, and the supply unit (200) is provided with: a cylindrical container that stores the powder; a cylindrical inner wall (221) into which the cylindrical container can be inserted; a holding section (220) capable of coming into contact with the cylindrical container; and a driving part (230), when the cylindrical container is inserted into the holding part (220), the holding part (220) and the driving part (230) hold the cylindrical container, a plurality of first convex parts (336) are arranged on the roller surface of the driving part (230), a plurality of second convex parts (317) are arranged on the outer surface of the cylindrical container, and the plurality of first convex parts (336) are embedded with the plurality of second convex parts (317).

The invention discloses an anti-breaking structure and method for arranging a buffer sheet on the edge of a circuit board, and the structure achieves the effective isolation between an electronic wire and the edge of the circuit board through arranging a polyimide (PI) thin film or a polyester film with the thickness of less than 0.1 mm on the edge of a PCB, a copper foil circuit board or an FPC flexible circuit board. The structure not only provides physical protection in a static state, but also remarkably reduces the cutting and breakage risks of electronic wires or heating materials under the dynamic stress conditions of the wearable heating clothes, such as washing, twisting and bending processes. Compared with a high-cost scheme using a more wear-resistant material or a complex process in the prior art, the problem of damage of the edge of the circuit board to a connecting part is solved in a more economical manner, and the durability and the safety of equipment are improved.

The invention discloses a magnetoelectric composite material based on prestress regulation and control and a preparation method, and relates to the technical field of composite materials. The method comprises the following steps: plating electrodes on the upper and lower surfaces of a piezoelectric material sheet; bonding the piezoelectric material sheet plated with the electrode with the magnetostrictive material sheet; curing the bonded piezoelectric material sheet and magnetostrictive material under the action of a direct-current bias magnetic field to form a magnetoelectric composite material; wherein the piezoelectric material sheet is made of a single-crystal or polycrystalline ceramic material, and the magnetostrictive material sheet is made of an alloy or oxide with a magnetostrictive effect; according to the invention, the flaky piezoelectric material and the magnetostrictive material are bonded and compounded, and a direct-current bias magnetic field is applied in the adhesive curing process to optimize the residual stress state in the material, so that the magnetoelectric composite material formed by final curing has a higher magnetoelectric coupling coefficient; the anti-interference performance is higher; and the response stability in a complex environment is improved.

The invention relates to the technical field of micro-clamps, and discloses a side clamping type micro-clamp which comprises a flexible hinge structure and a driving mechanism, the flexible hinge structure adopts an integrated sheet design and is mainly composed of a sheet body I, a sheet body II and a middle sheet body located between the sheet body I and the sheet body II; one end of the sheet body is provided with a movable jaw, two ends of the sheet body are provided with fixed jaws, and the movable jaw and the fixed jaws form a clamping gap; the middle sheet body is connected with the first sheet body and the second sheet body through a first flexible body and a second flexible body respectively, the extending direction of the first flexible body is parallel to the clamping gap, and the extending direction of the second flexible body is perpendicular to the clamping gap; when the driving mechanism drives the middle sheet body to move in the width direction of the clamping gap, movement is transmitted to the movable jaw through cooperative deformation of the first flexible body and the second flexible body. According to the side clamping type micro clamp, the driving direction is consistent with the clamping direction, millimeter-level large-stroke movement is achieved, and the side clamping type micro clamp has the outstanding advantages of being compact in structure, free of damage and long in service life.

One aspect of the present disclosure provides composite particles comprising: a plurality of coated particles that contain an inorganic crystal and a reduced graphene oxide and have a coating layer provided on the surface of the inorganic crystal; and a sheet containing a reduced graphene oxide, wherein the sheet includes secondary particles in which the plurality of coated particles are aggregated.

The invention discloses a photobleached all-polymer optical waveguide grating sensor and a preparation method thereof, and belongs to the technical field of polymer optical waveguide grating sensors. The preparation method comprises the following steps: carrying out hot stamping on a substrate sheet to obtain a substrate sheet with a groove; spin-coating photoresist on the substrate sheet to form a photoresist core layer; photoetching the photoresist core layer through double-beam interference to obtain the photoresist core layer with interference fringes; spin-coating a thermosensitive polymer cladding material on the photoresist core layer, covering the flexible substrate and then carrying out low-temperature thermocuring so as to bond the photoresist core layer and the flexible substrate; stripping the substrate sheet, exposing the photoresist core layer, covering the protective cladding, and curing to obtain a multi-layer composite device; and performing non-uniform post-baking on the multi-layer composite device to obtain the multi-layer composite device. According to the invention, the grating period can be changed under the condition that the grating mask is not replaced, and the cost of spectrum adjustment is greatly reduced.

This utility model relates to the field of item storage technology and discloses a folding and collecting structure for instruction manuals. It includes a first pressing plate, a second pressing plate mounted on the rear end of the first pressing plate, and a plastic book-carrying layer mounted on the opposite surfaces of the first and second pressing plates. Multiple placement cavities are provided at the top and bottom of the plastic book-carrying layer. This folding and collecting structure for instruction manuals combines a pullable, unfoldable plastic book-carrying layer with the first and second pressing plates. When not in use, it retracts, occupying little space and facilitating storage and carrying. When the instruction manuals need to be stored, pulling the first and second pressing plates unfolds the thin sheet to form a storage space. The operation is simple and can quickly meet storage needs. Furthermore, the elastic fastening ropes, fastening rings, and fastening buckles on the surface can be adjusted according to the thickness of the structure, ensuring stable storage regardless of the number of instruction manuals, preventing them from scattering, and guaranteeing the stability and reliability of the storage.

An inorganic non-woven fiber sheet has a thickness T of 1 mm or more and contains shots derived from inorganic fibers and having a diameter of 45 μm or more. The shots is distributed as represented by “1−Y / X≤0.11.” Wherein X represents “a total weight of the shots in the inorganic fiber sheet per unit area” / “a total weight of the inorganic fiber sheet per unit area”, and Y represents “a weight of the shots per unit area included in the inorganic fiber sheet from which a portion having a thickness t and satisfying 0≤t≤s is removed, 0.10 mm≤s≤0.55 mm, with a wire side surface as a reference surface” / “a weight per unit area of the inorganic fiber sheet from which the portion having the thickness t is removed with the wire side surface as the reference surface”.

A method for repairing crack defects in aluminum alloy specimens using a pointed thin-film acoustic electrode, belonging to the field of aluminum alloy specimen repair, includes: (1) determining the crack repair requirements based on the service environment of the aluminum alloy specimen, and determining the required solder according to the repair requirements; (2) ultrasonically cleaning the inside of the crack; (3) ultrasonically repairing the crack to be repaired; first, the specimen is placed on a heating platform for heating. After heating to the specified temperature, the solder is placed inside the crack. After the solder is completely melted, the pointed thin-film acoustic electrode is inserted into the solder, and the ultrasonic treatment is turned on for repair; (4) after the repair is completed, the microstructure and properties of the weld are tested. This repair method is highly operable. The repair process under ultrasonic action can be carried out directly in an atmospheric environment without the need for protective gas or special environment, reducing repair costs and adapting to various complex shapes, small widths, and large depths of cracks.

This invention provides a rapid preparation method for steel samples for transmission electron microscopy (TEM), relating to the field of physical analysis of steel materials. It is applied to the preparation of various steel samples, including heat-sensitive steels, using a composite binder of cellulose acetate, acetone, silica, and alumina. The binder is used to adhere one side of a wire-cut steel sample sheet to the sheet fixing surface of a grinding aid. A grinding aid area, parallel to the bottom surface of the sheet fixing surface, is provided on the grinding aid device. The grinding aid area is pressed, and sandpaper with progressively increasing grit is used to grind one side until a first preset thickness is reached. Then, the other side is switched, and sandpaper with progressively increasing grit is used to grind the second side until a second preset thickness is reached. The ground sheet is removed, thinned, punched, and electropolished to obtain the target steel sample. This invention can rapidly prepare steel sample sheets with a thickness of 30-50 µm, and the method is simple and has a high success rate.