31 results about "Perforated metal" patented technology

To significantly improve the combustion of a fuel gas containing at least 95% hydrogen by volume in a gas burner (10) for heating purposes, a burner body (16) for the gas burner (10) has been proposed, which, as a burner surface (38) for the passage of a premixed fuel gas-air mixture into a combustion chamber (14), has a perforated metal surface (40) which has through holes (48) such that less than 5% of the burner surface (38) is open. wherein the through holes (48) have hole diameters D with 0.4 mm ≤ D ≤ 1.0 mm, wherein the hole diameters D and / or hole lengths of the through holes vary.

To provide a perforated panel for constructing a perforated screen which has excellent design and functionality and is of high commercial value.SOLUTION: A perforated panel is made of a metal plate having a predetermined width and a predetermined length. A main body of the metal plate is attached to a building via a mounting fixture either alone or with multiple members connected in parallel. A contour figure of a hole of any shape is set on the main body of the metal plate, in which the contour figure has a reference side of a predetermined length. The other sides are cut, leaving this reference side, and a portion surrounded by the other sides is bent at a predetermined angle with respect to a flat surface of the main body, with the reference side as a reference. This forms a hole in the main body, and the portion surrounded by the other sides becomes a protruding piece that protrudes from the flat surface of the main body.SELECTED DRAWING: Figure 1

This utility model discloses a negative pressure compressor silencer made of composite sound-absorbing material, including a negative pressure fan body and a silencer pipe fixedly installed on the air inlet end of the negative pressure fan body. An air inlet channel is fixedly installed on the inner wall of the silencer pipe, and a primary noise reduction mechanism is provided on the inner wall of the air inlet channel near the pipe opening. The primary noise reduction mechanism includes an air inlet cylinder fixedly installed on the inner wall of the air inlet channel, and multiple air inlets are opened on the outer wall of the air inlet cylinder. This utility model, through the inner ring silencer cylinder, outer ring silencer cylinder, and silencer ring cylinder of the primary noise reduction mechanism forming a multi-stage sound absorption structure, utilizes the cooperation between the silencer holes and the annular cavity to allow sound waves to reflect and diffract between different cavities, effectively absorbing mid-to-high frequency noise. The coaxial and annular array distribution design of the air inlets guides the airflow to enter evenly, reducing the generation of eddy noise. The composite structure of the perforated metal cylinder and the sound insulation felt further blocks the transmission of noise, improving the broadband noise reduction effect.

The invention relates to a metal mask supported by a glass substrate for manufacturing an organic light emitting diode display. The mask includes a glass substrate located only outside the display area, an open-cell metal layer for providing structural stability, and forming apertures for material deposition in the display area. The perforated metal layer can be formed by methods such as electroforming, sputtering, chemical vapor deposition, evaporation or atomic layer deposition, and the used metal comprises a material with a low thermal expansion coefficient, such as invar steel, super invar steel, kovar alloy, 42 alloy, nickel, tungsten, molybdenum, tantalum or rhenium. The mask supports two structural forms: a fine metal mask and an open metal mask which are respectively used for evaporation of red, green and blue sub-pixels and a common layer. The method can be used for batch processing of a plurality of micro organic light-emitting diode display substrates, and can also be used for full-coverage processing of a single active matrix organic light-emitting diode display substrate.

A composite panel comprising a perforated metal foil for lightning strike protection, the composite panel comprising: a plurality of carbon layers; a perforated metal foil comprising a number of apertures and directly fastened to the plurality of carbon layers; and a protective layer made of a resin reinforced with fibers, the protective layer being fastened to the metal foil, wherein the perforated metal foil is embedded into the protective layer through its apertures, a free surface of the protective layer forms a top side of the composite panel, a thickness of the protective layer between the top side of the composite panel and the perforated metal foil is at least 15 micrometers, and a thickness of the perforated metal foil is not more than 30 micrometers, the plurality of apertures defines in total an open area of not more than 40% of the surface area, and a maximum distance between two opposite points on the aperture periphery is equal to or less than 3 mm.

The utility model provides a printed circuit board type heat exchanger core body with staggered winding type flow channels, which relates to the technical field of heat exchange devices and comprises a plurality of layers of metal sheets which are overlapped and welded into a whole through vacuum diffusion welding and are provided with flow channels on the surfaces. The heat exchanger core body comprises an upper cover plate with a plurality of discontinuous flow channels, a lower cover plate with a plurality of discontinuous flow channels and a perforated metal plate with a plurality of discontinuous flow channels on the two faces, and the heat exchanger core body is formed by stacking plate sheets. The upper cover plate, the perforated metal plate with the discontinuous runners on the two faces and the lower cover plate are sequentially stacked to form a unit, and the whole heat exchanger core is formed by periodically stacking a plurality of units. The cross-flow type heat exchanger aims at solving the problem that a traditional cross-flow type heat exchanger is low in heat exchange efficiency, disturbance of heat exchange working media is enhanced, and the heat exchange efficiency is improved.

The present invention relates to a method for deoxidizing tantalum powder and tantalum powder produced by the method. The method comprises separating the tantalum powder to be deoxidized from a deoxidizing agent, such as Mg powder / scrap, for example by using a perforated metal plate / screen, and vaporizing the deoxidizing agent by heating and bringing it into contact with the tantalum powder to be deoxidized.

This application provides an automatic deburring device for the inner wall of perforated metal tubes, relating to the field of metal tube processing technology. It includes a worktable and a conveyor rail fixedly mounted on the worktable for carrying the perforated metal tubes. One end of the conveyor rail is provided with an intermittent feeding component for placing the perforated metal tubes on the conveyor rail and a pushing component for pushing the perforated metal tubes forward. The other end of the conveyor rail is provided with a grinding component for grinding the inner wall of the perforated metal tubes and a unloading component for collecting the perforated metal tubes. The feeding component and the unloading component are provided with a fixing component for fixing the perforated metal tubes. This device can automatically feed, push, fix, grind, and unload perforated metal tubes, improving the automation level of the device, reducing manual operation, lowering labor intensity, and increasing production efficiency. The components work together to ensure the continuity and stability of the processing process.

The utility model provides a low negative pressure side wing diversion wall for airplane test run, which comprises a diversion structure surrounding an airplane, the diversion structure comprises a tail diversion wall corresponding to the tail of the airplane and side wing diversion walls corresponding to side wings of the airplane, and the side wing diversion walls are integrally parallel to or slightly inclined to the axial direction of an airplane body and are connected with the ground. The side wing flow guide wall comprises a windward side and a leeward side, the windward side is formed by continuously splicing a plurality of metal plates, the leeward side is connected with a supporting frame, and the bottom of the supporting frame is connected with a concrete ground anchor bolt; a plurality of silencing ducts are further arranged in the side wing flow guide walls, and the opening ends of the silencing ducts penetrate through the windward side and face the aircraft; the noise elimination ducts are arranged on the flow guide walls of the side wings, airflow can be introduced, the internal and external pressure difference of the flow guide walls is reduced, the test run environment of an airplane is facilitated, and meanwhile the influence of noise is greatly reduced through the cooperation of the perforated metal plates in the noise elimination ducts and the resistive sound absorption materials.

Modular built-in dish rack for housing dishes comprising a perimeter framework defining a frame, a perforated plate, a plurality of drip trays for collecting run-off water and a plurality of drainage grids. The perforated plate, housed in the framework, defines a separation of the frame into a plurality of subsections. In each subsection, a tray is housed on top of which a respective drainage grid is arranged. The drainage grids are interchangeable. In particular, the dish rack comprises, on a first inner surface of a first pair of opposing sides comprised in the framework, housing profiles adapted for the sliding insertion of the perforated sheet metal into the framework.

The utility model provides a combined type ventilating and brightening decorative framework based on energy-saving unit curtain wall overhanging. The two wings of the inner side of a transverse triangular supporting piece are connected with F-shaped vertical frames on the two sides, and the outer side of the transverse triangular supporting piece and a middle decorative profile are connected and assembled to form a triangular prism supporting framework. The left perforated metal plate and the right perforated metal plate are installed on the left side face and the right side face of the triangular prism supporting framework, and the lamp groove lamp strip is fixed in a groove formed after the perforated metal plates and the triangular prism supporting framework are assembled and then integrally connected to the outwards-extending wings extending out of the outer end faces of the unit stand column and the unit middle column. The energy-saving ventilation opening window has the advantages of being safe, reliable, good in visual effect, good in energy-saving effect, easy and fast to machine and install, easy to control installation precision and quality, easy to replace and maintain, good in manufacturability, good in economical efficiency, high in applicability and the like, integrates the functions of decoration, ventilation and brightening, and is suitable for popularization and application. And good popularization and application prospects are achieved in design and installation of ventilation and brightening decorative curtain walls in the field of constructional engineering.

To significantly improve the combustion of a fuel gas containing at least 95 vol% hydrogen in a gas burner (10) for heating purposes, a burner body (16) for the gas burner (10) has been proposed, which, as a burner surface (38) for the passage of a premixed fuel gas-air mixture into a combustion chamber (14), has a perforated metal surface (40) which has through-holes (48) such that less than 5% of the burner surface (38) is open, wherein the through-holes (48) have hole diameters D with 0.4 mm ≤ D ≤ 1.0 mm, wherein the hole diameters D and / or hole lengths of the through-holes vary.

Rapid harness fabrication uses pins having a positioning head, which may include (define) a paper punch end and a magnetic collar disposed between the positioning head and a shaft of the pin. A perforated metal board may have a sheet of perforable material (paper) disposed over it and the magnetic pins may be located in a harness configuration on the sheet by punching the positioning head of each of the pins through the sheet with the collar magnetically engaging the metal board. Harness components may be routed and / or disposed in the harness configuration, with the pins holding the harness components in the harness configuration. Stops secured to distal ends of pin shafts may retain a harness component in the harness configuration. The harness configuration may be projected on the sheet. at a one-to-one scale, by (a) system projector(s) and / or the harness routing may be printed on the sheet.

The steel perforated metal panel thermal insulation, waterproofing, and vapor barrier curtain wall for a waste-to-energy incineration plant includes a keel frame, an outer decorative layer and a waterproof layer, and an inner thermal insulation and vapor barrier layer. The decorative layer includes corrugated aluminum plates and H-shaped aluminum alloy bases, with several H-shaped aluminum alloy bases snapped onto the main and secondary keels of the keel frame and fixed with bolts. The thermal insulation and vapor barrier layer includes thermal insulation rock wool located between the main keels and inside the secondary keels, a waterproof and breathable membrane laid on the inner wall of the thermal insulation rock wool, and inner steel plate pressure strips distributed inside the thermal insulation rock wool and outer steel plate pressure strips outside the waterproof and breathable membrane. This application achieves a unified effect of safety, vapor barrier, thermal insulation, and waterproofing by using a prefabricated method while ensuring the architectural aesthetics.

This invention relates to a high-throughput magnetron sputtering method for preparing thin films by flexibly changing the area and number of deposition regions. At least two deposition openings are provided on a metal mask used to prepare process thin film samples. At least one set of openable and closable perforated metal sheets are provided on the lower surface of each deposition opening. The metal mask has an inclined angle or a concave surface on the side of the deposition opening facing the target gun. The porous structure of the metal mask provided by this invention allows for the preparation of the same process thin film sample in a single magnetron sputtering PVD without adjusting the aperture size, meeting different testing requirements and eliminating the need for repeated coating. By installing semi-circular perforated metal sheets on the lower surface of the deposition openings of the mask, the area of ​​the deposition openings and the number of deposited thin films can be flexibly adjusted, resulting in efficient preparation of thin film samples. Furthermore, by providing a concave or inclined surface structure on the upper surface of the deposition openings of the mask, the obstruction effect of the vertical sidewalls of the deposition openings on sputtered material is reduced, improving the uniformity of the thin film.

This invention discloses a high-yield-strength polyester fiber sound-absorbing panel, comprising, from top to bottom, a micro-perforated metal surface layer, a gradient-density polyester fiber layer, a honeycomb metal skeleton layer, and an elastic damping bottom layer, all stacked and fixed together with adhesive. Vertically distributed metal panels surround the sides of the micro-perforated metal surface layer, forming an integral structure with the micro-perforated metal surface layer. The metal panels enclose the gradient-density polyester fiber layer and the honeycomb metal skeleton layer. The honeycomb metal skeleton layer is not only glued to adjacent upper and lower layers but also secured to the metal panels with rivets. This invention effectively overcomes the strength deficiencies of traditional polyester fiber sound-absorbing panels through an innovative composite lamination design. The micro-perforated metal surface layer and the integrally formed metal panels constitute a rigid outer frame, protecting the internal fiber layers from mechanical damage and significantly improving the overall bending stiffness through the load-bearing capacity of the metal skeleton.

This utility model discloses a perforated aluminum ladder with tiers, relating to the field of pet supplies. It includes a bottom mounting frame, on one side of which a pair of bottom support frames are symmetrically arranged. On the other side of the bottom mounting frame, away from the bottom support frames, a pair of first middle section support frames are symmetrically arranged. A first mounting and fixing frame is rotatably connected between the pair of first middle section support frames. A perforated metal plate is disposed within the first mounting and fixing frame. This utility model, by using a perforated metal plate, aluminum first and second mounting and fixing frames, and a steel bottom mounting frame, reduces the overall weight, facilitating movement; it also reduces the weight of the extended end, ensuring structural stability after unfolding.

According to the present invention, a rechargeable battery, a method for manufacturing the rechargeable battery, and a method for manufacturing an electrode for the rechargeable battery are provided with: a step for forming electrode slurry that includes an electrode active material, amorphous carbon or a carbon fiber, a thickener, and a binder; a step for applying the electrode slurry to a substrate and then drying the same, thereby forming an electrode coating film on the surface of the substrate; and a step for superposing the substrate having the electrode coating film formed on the surface thereof onto one surface of perforated metal foil including a plurality of through-holes, and then applying a pressure thereto, thereby transferring the electrode coating film to the perforated metal foil.

For masonry walls made of bricks or concrete blocks, horizontal tensile reinforcement is provided by inclusion of a long metal strip buried within a layer of conventional mortar laid over a course of masonry. Retaining holes are pressed through the metal strip while unperforated metal zones along the strip edges maintain tensile strength. Edge flanges bent downwardly support the strip at a height within the mortar when first laid. The mortar penetrates the holes and locks to the strip while continuing to bond normally to the masonry on both sides of the strip. 2021203141 17 2021 May

The application relates to the glass toughening technical field, in particular to a glass toughening furnace with a sound insulation structure and a production process, which comprises a conveying channel, a heating chamber and a quenching chamber arranged on the conveying channel, and a control panel arranged on one side of the conveying channel; the quenching chamber is internally provided with a sound insulation assembly; the application has the sound insulation function for the airflow conveyed in the quenching chamber; the noise generated during the airflow conveying is absorbed; the noise generated by the airflow impacting the inner wall of the quenching chamber is reduced; the airflow entering the buffer bin is contacted with the inclined sleeve plate in the buffer bin; the airflow is dispersed under the double action of the perforated metal plate on one side of the inclined sleeve plate and the centrifugal glass cotton; the wind howl generated by the airflow is dispersed and absorbed; under the action of the rotating blade, the unidirectional flow channel is formed; the flow paths of the conveyed gas are not disorderly; the airflow is not in disorderly flow; and the sound absorption effect of the whole perforated metal plate is not affected.

A dual bimorph assembly includes a multilaminar element structure where each elements includes a perforated metal layer, a suffusing conductive ink layer and a transductive assembly. A retainer assembly is provided with conductive tabs and a retainer through connector electrically connects metal layers.

The utility model provides a kind of return air energy storage liquid cooling machine structure with noise reduction panel, it is related to energy storage equipment field, including shell;The front end of shell is equipped with rectangular air inlet, the rear end of shell is equipped with rectangular air outlet, the air inlet and air outlet of the front and rear ends of shell are symmetrically installed with noise reduction board inside, and the inside rear side of shell is fixedly installed with heat exchange component;The return air energy storage liquid cooling machine structure with noise reduction panel can make airflow consume sound wave energy by multiple reflection through the "V" shape ventilation sound insulation groove of noise reduction board, effectively weaken the middle and high frequency aerodynamic noise, and do not hinder airflow circulation, avoid the problem that traditional plane sound insulation structure increases airflow resistance, the perforated metal sheet of flow guide layer can guide airflow to enter sound absorption layer uniformly, prevent local airflow velocity too fast to produce noise, and at the same time, rely on high-strength metal material to protect internal sound absorption layer from airflow impact damage, to solve the problem of sticking sound insulation cotton noise reduction, easy to block passage to reduce heat dissipation and aging influence reliability.

The utility model provides a movable module splicing type muffling enclosure, including mounting panel, mounting panel is provided with two groups, the top of two groups mounting panel all installs support assembly, is provided with muffling enclosure assembly between two groups support assembly, the above -mentioned scheme through the multilayer composite sound absorption structure of outer layer perforated metal sheet, middle layer multilayer cavity sound absorption module and inner layer microporous sound absorption board composition has formed the progressive sound absorption system, has improved sound absorption effect, multilayer cavity sound absorption module adopts magnetic attraction type splicing structure, need not additional tool and fastener to complete the assembly and disassembly fast, and the installation box no.

The invention discloses a preparation method and application of a micro-column and a micro-column interconnection flexible elastomer, and relates to the field of flexible electronics and intelligent sensing, and the preparation method specifically comprises the following steps: S1, taking a through-hole metal plate or through-hole polyimide as a template, casting a polymer precursor on the template, fixing the bottom on a fixing plate, and demolding after curing to obtain the micro-column flexible elastomer; s2, a through hole metal plate serves as a template, a polymer precursor is cast on the two sides of the template and fixed between the fixing plates, the metal template is removed through etching after curing, and the integrated micro-column interconnection flexible elastomer is obtained; s3, on the basis of S1, an object with a rough surface is selected as a bottom fixing plate, demolding is performed after curing, and a micro-column flexible elastomer with the micro-nano structure on the top surface of a micro-column is obtained; and S4, obtaining the conductive micro-column and the micro-column interconnection flexible elastomer. The flexible elastomer prepared by the invention has a uniform columnar arrangement structure and abundant interface contact sites, and the overall sensing performance of the flexible piezoresistive sensor can be improved.

To provide a cooking appliance that minimizes the number of parts and the lack of a cohesive design. [Solution] The heating appliance 1 comprises a main body 2 having a cooking chamber 15 inside, and a door 3 covering the opening of the cooking chamber 15. The door 3 comprises a frame 51 having the side and back parts of the door 3, an upper outer frame cover 52, a lower outer frame cover 53, a left outer frame cover 54, an inner heat-resistant glass 55 and a heat-resistant glass holder 56, a single plate-shaped glass member 57 provided to cover the front of these parts 51-56, and a display hand that accepts touch operations and displays various information. The door 3 has a stage 7, a light-transmitting area 57-2 for the display section, and a touch panel 8c, and the glass member 57 has a light-transmitting area 57-1 for the window section together with the light-transmitting area 57-2 for the display section, and the door 3 has an interior heat-resistant glass 55 disposed on the cooking room 15 side of the light-transmitting area 57-1 for the window section, and perforated metal disposed between the light-transmitting area 57-1 for the window section and the interior heat-resistant glass 55 for the kitchen section, forming an electromagnetically shielded window through which the inside of the cooking room 15 can be seen.

The technology described herein is directed towards a reflector metasurface with high optical transparency such as for reflecting beamformed millimeter wave signals. The reflector includes unit cells of reflecting elements (resonator rings) above a virtually optically transparent dielectric substrate, which is above a perforated metal ground plane. The ground plane is perforated to increase optical transparency, unlike a flat metal sheet. In one implementation, the perforated ground plane includes circular openings arranged as a honeycomb mesh pattern. The geometries of the reflecting elements can be selected to achieve a certain phase distribution across the reflectarray surface, which will then cause incident radiation to be reflected (beamformed) in a particular direction. With the mesh ground plane, a sufficiently large phase range on the order of 330 degrees is achieved, along with a high percentage of optical transparency of the metasurface.

The present application describes an anti-noise gasket (100) comprising at least one perforated metal layer (110) and at least one high-temperature-resistant layer (120), the at least one high-temperature-resistant layer (120) and the at least one high-temperature-resistant layer (120) being arranged / connected together by mechanical bonding, wherein the perforated metal layer comprises through holes (111) and mechanical bonding devices (112); and the high-temperature-resistant layer comprises fibers, fillers and adhesives.

A method for forming an acoustic resonator panel for an aircraft propulsion assembly nacelle, the acoustic panel including cells with transverse internal obstacles in order to lengthen the path traveled by the sound waves. The method includes forming a perforated metal sheet, stacking a plurality of thermoplastic cellular cores and at least one perforated sheet, two successive cellular cores being separated by a perforated sheet, compacting the stack, and thermoplastic welding.

The invention discloses a method for extracting and preparing metallic iron through associated ore fused salt electrolysis, and belongs to the technical field of electrochemical metallurgy. According to the method, associated ore is taken as a raw material, molten salt is taken as electrolyte, a metal sheet tightly attached to the side wall of a crucible is taken as a cathode, a space is defined by the cathode and a conductive sheet with holes for containing the associated ore, an inert material is taken as an anode, and molten salt electrolysis extraction is directly carried out to prepare metal iron; the associated ore cannot be diffused randomly through the conducting strip with the holes, and the fused salt can be in contact with the associated ore, so that the deoxidation direction of the cathode iron oxide in the electrolysis process is limited. According to the method, the side wall of one side of the associated ore in the iron oxide electrolysis process is limited as the cathode, so that the reaction interface moves towards the center along the axis directions of the perforated metal sheet and the cathode metal sheet, separated oxygen ions do not need to be diffused in metal iron through the reaction interface, the diffusion rate of the oxygen ions is high, the current efficiency is high, and the electrolysis efficiency is improved; and product purity. The method for extracting and preparing the metallic iron is stable in technology, short in technological process and wide in application prospect.

This invention relates to a resistive skin for acoustic panels or inner walls of aircraft air intakes, and also to inner walls of aircraft air intakes formed by such resistive skins, and corresponding aircraft nacelles, aircraft propulsion assemblies, and aircraft. The resistive skin comprises alternating perforated metal strips (10) in the lateral direction (Y) and composite solid strips (20) extending in the longitudinal direction (X), the perforated metal strips and composite solid strips forming a smooth outer surface and a serrated inner surface intended to contact aerodynamic flow, the composite solid strips (20) having a thickness greater than that of the perforated metal strips (10). Because the perforations (30) are located in the inherently abrasion- and corrosion-resistant metal strips, future verification of the acoustic performance of the resistive skin is guaranteed. Since the thicker composite solid strips ensure the mechanical strength of the skin, the thickness of the perforated metal strips can be reduced, thereby allowing the perforations to have a reduced size and a smaller impact on drag.