EP2540926B1 - Elément absorbant acoustique et son procédé de fabrication - Google Patents

Elément absorbant acoustique et son procédé de fabrication Download PDF

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Publication number
EP2540926B1
EP2540926B1 EP11172426.6A EP11172426A EP2540926B1 EP 2540926 B1 EP2540926 B1 EP 2540926B1 EP 11172426 A EP11172426 A EP 11172426A EP 2540926 B1 EP2540926 B1 EP 2540926B1
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EP
European Patent Office
Prior art keywords
plate
micro
laser beam
millimeter
planar
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP11172426.6A
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German (de)
English (en)
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EP2540926A8 (fr
EP2540926A1 (fr
Inventor
Marco Mäder
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Akustik and Innovation GmbH
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Akustik and Innovation GmbH
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Priority to EP11172426.6A priority Critical patent/EP2540926B1/fr
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Publication of EP2540926A8 publication Critical patent/EP2540926A8/fr
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/84—Sound-absorbing elements
    • E04B1/86—Sound-absorbing elements slab-shaped
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/84—Sound-absorbing elements
    • E04B2001/8457—Solid slabs or blocks
    • E04B2001/8476—Solid slabs or blocks with acoustical cavities, with or without acoustical filling
    • E04B2001/848—Solid slabs or blocks with acoustical cavities, with or without acoustical filling the cavities opening onto the face of the element
    • E04B2001/8495—Solid slabs or blocks with acoustical cavities, with or without acoustical filling the cavities opening onto the face of the element the openings going through from one face to the other face of the element

Definitions

  • the present invention relates to a sound absorbing member having the features of the preamble of claim 1 and a method of manufacturing a sheet-like sound absorbing member consisting of a plate in which a plurality of holes are spacedly distributed as micro-slits, each micro-slit having an elongated shape ,
  • the sound absorber is made from a polymeric film, typically plastic, formed with a series of microperforations over all or part of the film surface.
  • the film is then formed to produce the desired three-dimensional shape.
  • the depth of the three-dimensional shape is controlled to provide the desired depth of excavation, which in turn allows for the influence of the sound absorption spectrum.
  • the three-dimensional shape is held without the need for additional posts or frames. Deformation of the microperforations by the forming does not significantly affect the sound absorption properties of the film. Furthermore, film resonance over largely unsupported sections also has little effect on the sound absorption spectrum.
  • microperforated plates can be used for broadband absorption of sound.
  • the theory behind this teaching is that the vibrations of the air, i. the sound is effectively damped by the influence of gravitational forces within the microperforations and that in this way a broadband absorption is achieved without using additional porous materials.
  • the holes are generated with a laser beam.
  • the EP 0 876 539 Slots are produced in a plate by the fact that material parts of the Plate in the vicinity of each slot are partially pressed out of the plane of the plate.
  • the plate is in particular a steel plate or an aluminum plate with a thickness of between 0.1 and 10 mm.
  • the individual slots have a length of 3 to 20 mm, the width between 0.01 and 0.8 preferably being between 0.1 and 0.4 mm. At the location of the removed material is the slot to which the still present material is adjacent.
  • Another sound-absorbing plate-shaped absorption element is known from EP 1 950 357 known, in which a base plate made of glass is provided and a part of the micro slots are arranged on a micro slot-carrying insert, which are inserted into corresponding openings of the base plate.
  • This insert carrying the micro-slots can be made of glass, metal or plastic.
  • the absorbing plate is made of glass material and has micro-slots made in the wire-sawing process.
  • the micro slots have a slot width between 0.1 and 0.3 mm.
  • the honeycomb core is a structure of close-meshed raw paper honeycomb.
  • the planking consists of thin wood-based panels, which has one or more openings.
  • the planking may be formed by a veneer that may have a thickness of 0.4 millimeters and more.
  • Decorative foils, paper or plastic plates can also be used, wherein the openings in each case are formed by bores, millings or stampings.
  • the resulting holes have a diameter of 1 to 20 millimeters.
  • the present invention seeks to provide a simple plate-shaped element to be produced, which offers a good broadband absorption. Furthermore, a method for producing such plate-shaped element can be specified.
  • a sheet-like sound absorbing member consists of a plate, preferably a sheet of polymer material in a layer thickness of, for example, 2 to 5 millimeters, in which a plurality of holes are spaced distributed as micro-slots, each micro-slot having an elongated shape.
  • each microslit in the form of a funnel with partially oblique and optionally parallel side walls connecting the lower lower hole opening with the upper wider opening, the lower smaller hole opening has a width between 0.05 to 0.15 mm and a length between 0 , 5 to 60 millimeters, preferably 1 to 5 millimeters.
  • the top of the plate is acted upon by a laser beam which is designed to burn away the material of the plate in the depth.
  • the optics of the laser beam acting on the plate is arranged and configured such that the waist of the laser beam is focused on the area between the center of the thickness of the plate material to the plane of the underside of the plate, such that the laser power is sufficient in the case of a scanning laser beam to produce a lower, smaller hole opening having a width of between 0.02 to 0.2 or 0.05 to 0.14 or, for example, 0.15 millimeters.
  • a scanning laser is used, ie a laser whose beam is guided in lines over the plate and at locations where the slots are to emerge, the corresponding burning power is available and in the spaces between two longitudinally spaced micro slots of the beam otherwise distracted, blocked or exhibited.
  • micro slots may also have different diameters in the upper region, while in the lower lower hole opening, the width is indeed chosen differently, but always between 0.02 and 0.2 millimeters, in particular between 0.05 to 0.15 millimeters.
  • a laser beam is rapidly moved across the surface via an optical system.
  • the focus is adjusted so that a funnel-shaped slot is formed.
  • the tuning between the laser power and the processing speed is adjusted so that on the back of the material, ie the plate, a slot is generated with a defined minimum width, which is between about 0.05 - 0.15 millimeters.
  • Fig. 1 shows a non-scale cross-section through a plate 10 according to a first embodiment of the invention, whereas where Fig. 2 a likewise not fully scaled top view of a section of this plate 10 shows.
  • Fig. 3 shows a non-scale cross-section through a thicker plate 10 'according to a second embodiment of the invention, wherein Fig. 4 a likewise not to scale top view of a section of this plate 10 'shows.
  • the plate 10 or 10 ' is made of a polymer material, in particular of PET, and has a thickness of, for example, 0.75 to 10 millimeters.
  • a thin plate 10 after Fig. 1 and 2 has a thickness of 0.75 to 2 millimeters, preferably 0.5 to 15, 5 millimeters, in particular 1 millimeter.
  • a thick plate 10 'after Fig. 3 and 4 has a thickness of between 3 and 10 millimeters, in particular between 3 and 7 millimeters, preferably 5 millimeters. It is thus specified a torsion-resistant plate 10 or 10 ', which can be easily placed in a room or together with an insulating material 50 such as Fig. 5 described as sandwich plate 100 after Fig. 6 can be used.
  • the size of the plate 10 or 10 ' can be in the square meter range, for example, with a size of 1 by 2 meters, move, in the sketch of the Fig. 2 or 4 only two side edges 11 of a corner as an indication of the size of the plate 10, 10 'are located.
  • a plurality of micro-slots 20 or 120 are introduced, which may be distributed regularly or irregularly.
  • the micro slots 20 each have a length of 4 millimeters and are each arranged one behind the other in the direction of their longitudinal axis.
  • the lateral distance between two processing lines is in the illustrated embodiment at the top 12 a millimeter.
  • the distance between two slots 20 in the longitudinal direction is 2 millimeters, usually between 1.5 and 3 millimeters.
  • an engraving laser is used, which drives off the individual rows of holes to be produced in succession via a scanning device and can finish a plate in approximately 161 ⁇ 2 minutes at a scanning rate of, for example, 1 meter / second.
  • the narrower micro slots 20 of the plate 10 have different lengths of 3 and 6 millimeters and are also arranged one behind the other in the direction of their longitudinal axis.
  • the lateral distance 42 between two processing lines is 1 millimeter in the illustrated embodiment.
  • the distance 41 between two slots 20 in the longitudinal direction is 1 millimeter.
  • Other line arrangements with different angles of the individual micro slots 20 and 120 to each other are possible.
  • the wider micro slots 120 of the plate 10 ' have a Length of 1 centimeter and are arranged in the direction of their longitudinal axis one behind the other.
  • the transverse distance 42 between a micro slot 120 in the longitudinal direction to a micro slot 20 is 1 millimeter.
  • the micro-slots 20 may have a length of 1 millimeter to 4 centimeters and have a longitudinal spacing of 1 millimeter to 1 centimeter.
  • the lateral spacing of the rows from each other can be from 0.5 to 10 millimeters. Essential is the stability of the plate itself.
  • oblique side wall 21 of the slot 20 and the through hole 22 can be seen in the case of the micro slots 20.
  • sectional side view of the Fig. 2 It can be seen that the oblique side walls 21 are aligned substantially symmetrically to a central axis or hole axis 23 in cross section.
  • the oblique side walls 21 in each case follow an opening straight line 24 which is arranged symmetrically to the hole axis 23 in the illustrated embodiment. This results in an opening angle between the two straight lines 23 and 24, which spans in cross section a funnel or truncated cone with a slot as the base.
  • the angle may be between about 5 degrees and 60 degrees, preferably between 10 and 50 degrees, preferably 45 degrees. In the embodiment of the Fig. 1 illustrated angle is 30 degrees. In the embodiment of the Fig. 3 shown angle is 45 degrees at both slot widths.
  • the width of the slot 22 should be 0.05 to 0.14 millimeters, advantageously in particular about 0.1 millimeters.
  • the mentioned opening angle of 5 to 60 degrees relates in each case to the angle between the perpendicular 23 and one of the associated opening straight lines 24, so that at a favorable angle of 45 degrees, a width of the upper hole 25 to twice the thickness of the plate 10 plus the width of the bottom hole 22 results.
  • the quality of the side wall 21, so the homogeneity of this surface is of little relevance. It is even better if these side walls 21 of the micro slots 20 are uneven.
  • the roughness of the surface may be up to 0.01 or up to 0.05 millimeters.
  • the total open area per square meter of panel 10 should be between 1 and 10 percent, advantageously about 4.4 percent. This value corresponds to the above-mentioned first embodiment and refers to the area of the smaller micro slot openings 22 on the underside 13 of the plate 10. At an opening angle of 45 degrees, the upper opening 25 is 2.1 millimeters wide with a plate thickness of 1 millimeter.
  • the one-piece plate 10 ' in fact consists of two areas, an upper second portion 31, in which the side walls 26 to the opening 25 parallel to each other, and a lower first portion 32, in which the side walls 21, 121 run in a funnel shape, ie correspond to the oblique side walls 21 of the first embodiment.
  • This embodiment follows the adjustment of the laser power with respect to the material and the scanning speed, which is possible for the person skilled in the art, because in the upper region 31 the material is completely burned away by the focused laser beam, while the arrangement of the beam waist of the laser beam is in the lower region of the upper section 31 or of the Transition between the second 31 and the first 32 section causes the material of the lower portion 31 is burned away only to the extent that just forms the lower small micro slot opening 22 at the Scanverweildauer the laser beam, which therefore to the funnel-shaped walls 21 and 121 leads.
  • micro-slots 20 and 120 are advantageously produced by the application of laser radiation from the upper side 12 of the plate 10 or 10 ', it being essential that the beam waist of the laser beam in the region of the center of the thickness of the plate up to the bottom 13th the plate 10 is located.
  • an engraving laser for example a LS900XP from Gravograph was used for test purposes for plates 10 having a size of 500 by 500 millimeters in size With its maximum output of 80 watts and a scan speed of up to 4 meters / second, it provides the necessary performance data.
  • LS900XP from Gravograph
  • the maximum output of 80 watts and a scan speed of up to 4 meters / second it provides the necessary performance data.
  • other lasers and deflection optics can also be used.
  • slot width of the micro slot 20 or 120 it is the slot width of the funnel-shaped constriction 21, 121 to the breaking slot 22 from 0.05 to 0.15 millimeters in the second section 32 in the material and not the greater width of the substantially parallel walls 26 over the height of the first portion 31 in the material.
  • narrowing the micro slots 20 in the first parallel section from 0.25 millimeters to 0.15 or 0.05 millimeters results in a shift of the absorbed sound toward the woofers.
  • FIGS. 7 and 8 show a coordinate system with an absorbance between 0 and 100, measured relatively, against the frequency between about 100 hertz and just over 2000 hertz.
  • the Fig. 7 shows measured absorption spectra 210 and 220 for each one single-layer plate 10 with different smaller hole width 22 on the respective bottom 13.
  • the absorption spectrum 210 corresponds to a plate 10 which has been suspended in front of a wall at a distance of 10 centimeters and a predetermined number of micro-slots 20 having a minimum aperture 22 of 0.05 millimeters.
  • the absorption spectrum 220 corresponds to a plate of the same thickness which has been suspended in a defined manner in front of a wall at a distance of 10 centimeters and has a predetermined number of micro-slots 120 with a minimum aperture 22 of 0.1 millimeter.
  • the peak of the spectrum is shifted from about 400 hertz to about 800 hertz.
  • the Fig. 8 shows measured absorption spectra 230 and 240 for each pair of plates 10 at a distance in air of 20 millimeters from each other, also with different smaller hole widths 22 on the respective undersides 13. At each Plate pair were the hole width 22 but chosen the same.
  • the absorption spectrum 230 corresponds to a pair of plates 10, one of which has been suspended in a defined manner from one wall 10 centimeters apart, the other 20 millimeters farther from the wall, and both plates have a predetermined number of micro-slots 20 with a minimum breakthrough opening 22 of 0.05 millimeters.
  • the absorption spectrum 240 corresponds to a pair of plates of the same thickness, which have been suspended in front of a wall at a distance of 10 centimeters and 12 centimeters respectively, respectively, and have a predetermined number of micro-slots 120 with a minimum aperture 22 of 0.1 millimeter.
  • the peak of the spectrum is shifted from about 300 hertz to about 600 hertz.
  • the Fig. 5 shows an embodiment of a Wabendämmplatte 50 according to an embodiment of the invention.
  • the Wabendämmplatte 50 is based on a plate 10, better sheet-like film after Fig. 1 from, wherein advantageously the material of the plate 10 is selected to be very thin, for example, 0.2 millimeters thick.
  • the material of the plate 10 is provided over its entire surface with micro-slots, which in the Fig. 5 are then referred to as a hole pattern 62. Due to the schematic representation of these hole pattern slots 62 are shown only as simple lines, although they the slots 20 from the Fig. 1 or 3 correspond.
  • connection areas have been given the reference numeral 60 in the figures.
  • connection regions 60 have a double wall thickness and as a rule the micro-slots of the two layers are not congruent so that they do not or are only partially consistent. Therefore, in the connection areas 60 of the Fig. 5 no slots drawn, although these are present.
  • the micro slots 62 are in the remaining transition areas 61 or honeycomb surfaces.
  • the insulating plate 50 thus consists of hexagonal banded honeycomb 63.
  • the micro slots 62 are in the in the Fig. 5 illustrated embodiment arranged in parallel between upper edges 64 and lower edges 65. In other embodiments, they may also be arranged parallel to the upper edges 64 and lower edges 65 or at an angle to these standing. It is by applying a pull on side edges of the honeycomb to achieve a different shape, for example by upsetting or pulling the honeycomb.
  • the connection regions 60 can also be chosen differently, so that, for example, octagons or diamonds etc. result. It is essential that there are non-bonded areas with slots 62. These do not have to be across to edges 64 and 65 as in Fig. 5 run, but can also be longitudinal or inclined.
  • Fig. 6 now shows another embodiment of a composite insulation board or sandwich panel 100 with thin plates 10 after Fig. 1 and a heat insulation panel 50 Fig. 5 , It is then a combination of the two-ply plate as in Fig. 8 measured with an interposed advantageous Wammenämmstoff 50.
  • the micro-slots 62 which extend here between the upper edge 64 and the lower edge 65 of the honeycomb panel 50, are shown schematically at various points.
  • a micro slot 20 is also shown in the two plates 10 by way of example, wherein the plates 10 are advantageously aligned so that the narrow openings 22 are formed on the underside inwards at the edges 64, 65 of the thermal insulation material.
  • a variety of micro slots 20 are present similar to those in FIG Fig. 2 or Fig. 4 shown, in a succession of many slots in a row and in many rows next to each other.
  • the insulation board 50 with hexagonal honeycomb 60, it is also possible to produce other honeycomb shapes, such as triangles or octagons, as is known per se for such honeycomb structures. It is in each case advantageous in which these constituent materials, usually composed of cut strips 51, 52, etc., to introduce micro-slits which allow a further increase in the absorption rate.
  • the plate material may also be plastic reinforced paper or consist of Plexiglas.

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  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Building Environments (AREA)
  • Laminated Bodies (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)

Claims (15)

  1. Élément plan insonorisant, composé d'une plaque (10), dans laquelle une pluralité de trous (20) est arrangée distribuée espacée, où chaque trou (20) comprend la forme d'un tronc de cône avec des parois latérales inclinées (21) au cours d'une première section d'épaisseur (32), où dans une vue de dessus sur la plaque, la forme connecte une ouverture de trou inférieure (22) plus petite avec une ouverture supérieure (25) plus large, où l'ouverture de trou inférieure (22) plus petite comprend une largeur entre 0,02 à 0,2 millimètre, caractérisé en ce que les trous sont conçus comme micro fentes (20), où chaque micro fente, dans une vue de dessus, comprend une forme longitudinale, et en ce que l'ouverture de trou inférieure plus petite comprend une longueur entre 1 à 10 millimètre.
  2. Élément plan selon la revendication 1, où l'ouverture de trou (22) plus petite comprend une largeur de 0,05 à 0,14 millimètre.
  3. Élément plan selon la revendication 1 ou 2, où les parois latérales inclinées (21), à partir de l'ouverture de trou (22) plus petit, comprend un angle d'ouverture de 5 à 60 degrés, en particulier de 45 degrés par rapport à l'axe principal (23) du trou.
  4. Élément plan selon l'une quelconque des revendications 1 à 3, où la plaque (10) est une plaque en polymère, une plaque de plexiglas, une plaque de papier renforcé de fibres de plastique ou une feuille métallique ou une plaque métallique, en particulier une d'aluminium.
  5. Élément plan selon l'une quelconque des revendications 1 à 4, où la plaque (10) comprend une épaisseur de 0,5 à 2 millimètre.
  6. Élément plan selon l'une quelconque des revendications 1 à 4, où la plaque (10'), dans la section transversale, comprend une deuxième section d'épaisseur (31) adjacente à la première section d'épaisseur (32), dans laquelle les parois latérales (26) de l'ouverture de trou s'étendent parallèlement les uns aux autres et ont substantiellement le diamètre de trou de l'ouverture supérieure (25).
  7. Élément plan selon la revendication 6, où la plaque (10') comprend une épaisseur de 1 à 10 millimètre, en particulier de 4 millimètre.
  8. Élément plan selon l'une quelconque des revendications 1 à 7, où la plaque (10) comprend une série de rangées, arrangées côte à côte, de micro fentes (20, 120) qui sont arrangées une derrière l'autre, espacées l'une à l'autre, dans une direction de la direction longitudinale.
  9. Élément alvéolé insonorisant (100), constitué d'éléments plans selon l'une quelconque des revendications 1 à 8 qui ont été coupés en bandes, où les bandes (51, 52, 53) sont reliés les uns aux autres dans des zones de surface prédéfinis (60), où les bandes sont positionnées en travers l'élément alvéolé insonorisant (100).
  10. Élément alvéolé insonorisant (100) selon la revendication 9, où les micro fentes (62 ; 20, 120) sont arrangées en travers le bord supérieur (64) et bord inférieur (65).
  11. Élément alvéolé insonorisant (100) selon la revendication 9 ou 10, où sur chacun du bord supérieur et du bord inférieur de l'élément alvéolé insonorisant (100) un élément plan selon l'une quelconque des revendications 1 à 8 est arrangé, en particulier avec des ouvertures de trou inférieures (22) plus petit dudit élément plan qui sont alignés les uns aux autres.
  12. Procédé de production d'un élément insonorisant plan selon l'une quelconque des revendications 1 à 8, avec les étapes de procédé de l'arrangement d'une plaque (10, 10') de l'élément insonorisant plan, l'application d'un rayon laser sur la surface supérieure (12) de ladite plaque (10, 10'), le rayon laser étant conçu pour brûler le matériau de la plaque (10, 10') dans la profondeur dans la direction du rayon laser, où le rayon laser étant appliqué sur la plaque (10, 10') est appliqué sur la plaque (10, 10') de telle façon que la taille du rayon laser est focalisée sur un plan parallèle à la face inférieure (13) de la plaque dans une zone avant ou dans l'épaisseur de la plaque (10, 10') de telle manière qu'une ouverture de trou inférieure (22) plus petite avec une épaisseur entre 0,02 à 0,2 millimètre est produit.
  13. Procédé selon la revendication 12, caractérisé en ce que le rayon laser balaie la surface de la surface supérieure (12) de la plaque (10, 10'), où la vitesse de balayage, la puissance du rayon laser et la focalisation du rayon laser sont définies telles qu'une fente en forme d'entonnoir avec des parois latérales inclinées (21) est brûlée, où la puissance étant prédéterminée de telle façon qu'une micro fente (20) avec une largeur de entre 0,02 à 0,2 millimètre est créé sur la face inférieure (13) opposée de la plaque (10).
  14. Procédé selon la revendication 12 ou 13, caractérisé en ce que le rayon laser balaie la surface da la surface supérieure (12) de la plaque (10), afin de brûler l'un après l'autre une série de micro fentes (20), étant espacées les uns des autres et étant arrangées dans une direction l'une après l'autre dans une direction longitudinale, où ces micro fentes (20) sont arrangées en rangées côte à côte.
  15. Procédé selon l'une quelconque des revendications 12 à 14, caractérisé en ce que les rangées de micro fentes (20, 120) sont produits avec des largeurs différents dans la zone de la deuxième section d'épaisseur (31), dans laquelle les parois latérales (26) de l'ouverture de trou s'étendent parallèlement les uns aux autres et ont sensiblement le diamètre du trou de l'ouverture supérieure (25).
EP11172426.6A 2011-07-01 2011-07-01 Elément absorbant acoustique et son procédé de fabrication Not-in-force EP2540926B1 (fr)

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EP2540926A8 EP2540926A8 (fr) 2013-03-27
EP2540926B1 true EP2540926B1 (fr) 2013-11-27

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* Cited by examiner, † Cited by third party
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CN104695570A (zh) * 2013-12-06 2015-06-10 奇想创造事业股份有限公司 具有双向成形微孔的片材及其制造方法
AT515748B1 (de) * 2014-04-24 2017-09-15 Stia - Holzindustrie Ges M B H Bauplatte, insbesondere Wand- oder Deckenplatte
US10068563B2 (en) * 2015-11-18 2018-09-04 Rpg Acoustical Systems Llc Sound absorbing panel with wedge-shaped cross-section micro-slits
CN106223506A (zh) * 2016-08-04 2016-12-14 常熟市嘉淀纺织有限公司 环保吸音板
DE102017131473B4 (de) * 2017-09-19 2022-03-17 SWAP (Sachsen) GmbH Verbundwerkstoffe Aktives Verbundplattensystem und Verfahren zur Benutzung aktiver Verbundplattensysteme unter Nutzung elektroakustischer Wandler
DE102017131472A1 (de) * 2017-09-19 2019-03-21 SWAP (Sachsen) GmbH Verbundwerkstoffe Verbundplattensystem
BE1027517B1 (nl) * 2019-08-23 2021-03-23 Van Eycken Metal Construction Bvba Geluidsschermen en methode om deze te maken
CN110629896B (zh) * 2019-09-23 2020-12-25 福建永清华建设工程有限公司 一种基于常住房屋建筑的选择性单向隔音墙壁
AT526400B1 (de) * 2022-07-29 2024-05-15 Admonter Holzindustrie Ag Bauplatte

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1147428A (en) * 1966-09-16 1969-04-02 Acoustics And Architecture Ltd Improvements in or relating to sound absorbent panels
SE506188C2 (sv) 1996-01-25 1997-11-17 Dale Edward Knipstein Ljudabsorberande element samt förfarande för framställning av detta element samt användning av elementet
DE19839973A1 (de) * 1998-09-02 2000-03-23 Fraunhofer Ges Forschung Plattenförmiges Bauelement
US6598701B1 (en) * 2000-06-30 2003-07-29 3M Innovative Properties Company Shaped microperforated polymeric film sound absorbers and methods of manufacturing the same
DE102005019433B4 (de) 2005-04-25 2008-08-28 Richter Furniertechnik Gmbh & Co. Kg Leichtbauplatte mit beiderseitiger Beplankung
DK1950357T3 (da) 2007-01-29 2010-11-01 Albers & Co Akustikelementer
CH700728B1 (de) 2007-07-13 2010-10-15 Albers & Co Akustikelemente.

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EP2540926A8 (fr) 2013-03-27
EP2540926A1 (fr) 2013-01-02

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