49 results about "Perforated metal" patented technology

The invention discloses a polyester fiber acoustical board with high yield strength. The polyester fiber acoustical board comprises a micro-perforated metal surface layer, a gradient density polyester fiber layer, a honeycomb metal framework layer and an elastic damping bottom layer which are sequentially stacked and fixed through mucilage glue from top to bottom. A vertically-distributed metal surrounding plate is arranged around the side edge of the micro-perforated metal surface layer, the metal surrounding plate and the micro-perforated metal surface layer are of an integrally-formed structure, and the gradient density polyester fiber layer and the honeycomb metal framework layer are wrapped by the metal surrounding plate. And the honeycomb metal framework layer is fixed with the adjacent upper and lower layers through mucilage glue, and is also fixed with the metal coaming through rivets. By means of the innovative composite lamination design, the strength defect of a traditional polyester fiber acoustic board is effectively overcome. The micro-perforated metal surface layer and the integrally formed metal coaming form a rigid outer frame, so that the internal fiber layer is protected from mechanical damage, and the overall flexural rigidity is remarkably improved through the bearing effect of the metal framework.

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.

An anti-noise shim (100) comprising at least a perforated metal layer (110) and at least a high temperature resistant layer (120) faced / coupled together by mechanical bonding wherein the perforated metal layer comprises through holes (111) and mechanical bonding means (112), and the high temperature resistant layer comprises fibers, a filler and a binder.

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.

The present invention pertains to a conductive adhesive film (10) for joining a semiconductor device and a member, said conductive adhesive film (10) comprising: a stress relief layer (1) configured from a perforated metal foil in which a through-hole is provided on the main surface of a metal foil formed of at least one metal selected from the group consisting of copper (Cu), a copper (Cu) alloy, aluminum (Al), and an aluminum (Al) alloy; a first adhesive layer (2) containing copper (Cu), tin (Sn), a bismaleimide resin, and an organic phosphine and / or an organic sulfide, sadi first adhesive layer (2) being provided on the side of the stress relief layer (1) to which the semiconductor device is joined; and a second adhesive layer (3) containing copper (Cu), tin (Sn), a bismaleimide resin, and an organic phosphine and / or an organic sulfide, said second adhesive layer (3) being provided on the side of the stress relief layer (1) facing the side to which the semiconductor device is joined.

A molten sodium / metal chloride electrochemical cell comprises an anode compartment (14) and a cathode compartment (15), each enclosed in part by a respective metal plate (11, 12), the two compartments being separated by an impermeable, sodium-ion-conducting electrolyte element. The electrolyte element comprises an impermeable glass-ceramic layer (23b) bonded by a porous and permeable glass-ceramic layer (23a) to a perforated metal sheet (16), wherein the materials of the glass-ceramic layers comprise Na5RSi4O12, where R is a rare-earth element. The element R may be Sc, Er, Y, Ho, Dy, Gd, Eu, or Sm. The porous layer (23a) and the impermeable layer (23b) may be of different chemical compositions.

The invention provides a sound absorption lamp of an all-metal fine convex micropore structure, and relates to the technical field of illumination. The box body comprises a shell frame formed by a micro-perforated metal plate, a Z-shaped resonance plate is arranged in the shell frame, the shell frame is provided with an end cover assembly, and the end cover assembly and the shell frame jointly surround the Z-shaped resonance plate; the inner space of the shell frame is divided into two acoustic chambers by the Z-shaped resonance plate; porous plate surfaces are arranged on the left side and the right side of the shell frame, and a plurality of micro-perforated holes are uniformly distributed in the porous plate surfaces; when sound waves enter the acoustic cavity through the micro-perforations, the Z-shaped resonance plate is excited to vibrate, so that air molecules in the cavity generate friction with the surface of the Z-shaped resonance plate and the inner wall of the cavity, sound energy is converted into heat energy to be consumed, and sound absorption is achieved. The beneficial effects of the invention are that the sound absorption frequency can be broadened, and the sound absorption plate is made of metal and has the advantages of environmental protection, easy surface treatment and good heat dissipation effect.

The utility model discloses a mounting structure of a sound absorption module of a side wall of a silencing place, which is simple in structure, low in material consumption and convenient to mount. Comprising a frame fixed on a side wall and a plurality of acoustic boards installed on the frame, the frame is composed of a plurality of Z-shaped keels which are parallel to one another and are arranged at intervals from bottom to top, inner side panels of the Z-shaped keels are fixedly connected to a wall body of the side wall through bolts, a triangular keel is fixedly connected to outer side panels of the Z-shaped keels, and the triangular keel is fixedly connected to the wall body of the side wall through bolts. The sound absorption plate comprises a steel wire net frame, a sound absorption material and a perforated metal buckle plate with four side plates from inside to outside, and the sound absorption material and the steel wire net frame are arranged in a space defined by the four side plates; positioning plates which are bent inwards and are used for fixing the steel wire net rack, the sound absorption material and the perforated metal pinch plate together are respectively arranged on four side plates of the perforated metal pinch plate, and each positioning plate is clamped in a corresponding mesh on the steel wire net rack. The installation efficiency is high, materials are saved, and the sound absorption wall is long in service life and good in stability.

1. The name of this design product: Perforated Metal. 2. Purpose of this design product: This design product is used for decoration or isolation netting. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture. 5. This product is a thin product, so the left view is omitted; this product is a thin product, so the right view is omitted; this product is a thin product, so the top view is omitted; this product is a thin product, so the bottom view is omitted.

Method for melt impregnation of plastic fibers (1) with a thermoplastic matrix, wherein the plastic fibers (1) are guided over a bent perforated metal sheet (2) as an impregnation section under application of a contact pressure, wherein the highly viscous, thermoplastic matrix passes through the perforations (3) of the metal sheet in order to subsequently impregnate the plastic fibers (1), characterized in that the metal sheet (2) is sealed off from a carrier tool by means of a hinge pin clamp (5) which presses the metal sheet (2) against the carrier tool (4) with a bent shape.

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.

A method for making a cylindrical centrifuge basket according to the present disclosure includes pre-perforating a metal sheet to form a perforated metal sheet having perforations aligned along rows extending across a width of the perforated metal sheet. Each row is skewed at a prescribed nonzero skew angle relative to a surface line on the perforated metal sheet, the surface line parallel to an axis of rotation of the cylindrical centrifuge basket. The method further includes roller forming the perforated metal sheet to produce a perforated basket wall sheet, coupling a first edge of the perforated basket wall sheet to a second edge of the perforated basket wall sheet to form a cylindrical basket wall, and coupling a first end of the cylindrical basket wall to a ring, coupling a second end of the cylindrical basket wall to a baseplate, or both to form the cylindrical centrifuge basket.

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.

This invention discloses a broadband low RCS array antenna with FSR loading, wherein an absorbing layer is printed on the upper surface of a first dielectric substrate, a transmitting layer is printed on the middle and lower surfaces of a second dielectric substrate, a radiating layer is printed on the upper surface of a third dielectric substrate, and a metal base plate is printed on the lower surface of the third dielectric substrate; the second dielectric substrate comprises two dielectric substrates stacked together; the absorbing layer includes a metal square ring with four branches and lumped resistors loaded on the four sides of the metal square ring, wherein each branch is a metal rectangular ring with a bent metal strip connected to the apex of the metal square ring; the transmitting layer includes a pair of metal rings and a perforated metal plate, wherein the pair of metal rings are respectively placed on the upper and lower surfaces of the second dielectric substrate, and the perforated metal plate is placed in the middle of the second dielectric substrate; the radiating layer includes a microstrip antenna array and its feeding network loaded on the upper surface of the third dielectric substrate, and a metal base plate on the lower surface of the third dielectric substrate; the radiating layer is coaxially fed.

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

A filter unit is connected between a tray and a discharging duct of a spiral conveyor. The filter unit includes a first filter (perforated metal) that is fixed at a position close to the outer periphery of a conveying spiral, and a second filter (mesh filter) that rotates on the outside of the conveying spiral and the first filter. A washing nozzle sprays a washing liquid on the second filter. The chips captured by the first filter are scraped by the rotating conveying spiral and delivered back to the conveying path and the chips passing through the first filter but captured by the second filter are removed by the washing nozzle and delivered back to the conveying path. The washing liquid is sprayed at a predetermined angle from the washing nozzle and collides with vanes arranged on the outer periphery of the second filter and provides rotational force on the second filter.