EP0414613B1 - Verfahren zur Herstellung eines Absorbierelements für elektromagnetische Wellen - Google Patents

Verfahren zur Herstellung eines Absorbierelements für elektromagnetische Wellen Download PDF

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Publication number
EP0414613B1
EP0414613B1 EP90402343A EP90402343A EP0414613B1 EP 0414613 B1 EP0414613 B1 EP 0414613B1 EP 90402343 A EP90402343 A EP 90402343A EP 90402343 A EP90402343 A EP 90402343A EP 0414613 B1 EP0414613 B1 EP 0414613B1
Authority
EP
European Patent Office
Prior art keywords
layers
surface element
manufacturing process
process according
covered
Prior art date
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.)
Expired - Lifetime
Application number
EP90402343A
Other languages
English (en)
French (fr)
Other versions
EP0414613A2 (de
EP0414613A3 (en
Inventor
Klaus Roth
Joachim Mellem
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Saint Gobain Isover SA France
Original Assignee
Saint Gobain Isover SA France
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Saint Gobain Isover SA France filed Critical Saint Gobain Isover SA France
Publication of EP0414613A2 publication Critical patent/EP0414613A2/de
Publication of EP0414613A3 publication Critical patent/EP0414613A3/fr
Application granted granted Critical
Publication of EP0414613B1 publication Critical patent/EP0414613B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q17/00—Devices for absorbing waves radiated from an antenna; Combinations of such devices with active antenna elements or systems
    • H01Q17/005—Devices for absorbing waves radiated from an antenna; Combinations of such devices with active antenna elements or systems using woven or wound filaments; impregnated nets or clothes
    • 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
    • E04B1/76—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 heat only
    • E04B2001/7683—Fibrous blankets or panels characterised by the orientation of the fibres
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/92—Fire or heat protection feature
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1052—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing
    • Y10T156/1059—Splitting sheet lamina in plane intermediate of faces
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1052—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing
    • Y10T156/1062—Prior to assembly
    • Y10T156/1075—Prior to assembly of plural laminae from single stock and assembling to each other or to additional lamina

Definitions

  • the subject of the invention is a method of manufacturing a surface element for the absorption of electromagnetic waves.
  • Surface elements absorbing electromagnetic waves, in particular radar waves, are known. These surface elements are produced by alternately depositing in a form or cassette sections of plates of mineral wool and sections of plates of material with electrical conductivity. They can be used as radar absorbers, for example for building facades. The manufacturing process for such surface elements is however complicated and must be carried out essentially by manual.
  • the object of the present invention is to provide a process for manufacturing flat materials absorbing electromagnetic waves, in particular radar waves, enabling the provision of such materials to an industrial scale.
  • an element of surface for the absorption of radar waves consisting of layers, of a dielectric material, here in mineral wool, between which are arranged intermediate layers of an electrically conductive material.
  • the layers of mineral wool are stacked in the form of strips or plates, layers the fibers of which are oriented essentially parallel to large surfaces, by interposing layers of an electrically conductive material in the form of strips or plates, the stack is thus cut formed by vertical cutting with respect to the orientation of the fibers so as to form slices whose cutting faces become the large surfaces of the surface element and a support strip is applied which maintains the layers at least on one face of each surface elements.
  • the stacking of strips or plates of mineral wool whose fibers are arranged essentially parallel to the surfaces of said strips or plates has the advantage of allowing the implementation of flat elements of mineral wool prefabricated in the factory on an industrial scale. In addition, these can have a considerable length which makes it possible to produce a very large number of slices from each stack. Finally the length of the slices can be defined at will by varying the height of the stack.
  • the cutting step is preferably carried out using a wavy sharpening knife, with double teeth back and forth, cutting slices preferably during each vertical return.
  • Coating with a support strip has the double advantage of also being able to be carried out automatically and of imparting high mechanical resistance to the surface element.
  • Such a long surface element will for example be delivered in the form of a roll and cut to the desired length during installation.
  • the ratio does not necessarily have to be 1 to 1, but it can be 1 to 2, 1 to 3, 1 to 4, etc., in order to absorb a wider band of electromagnetic waves. , including radar waves.
  • the two faces of the surface element are advantageously coated.
  • a lamellar plate of very high mechanical strength is then obtained which can, for example, be used for covering flat surfaces because their solidity makes them practicable for a short time.
  • such an element coated on its two faces can be split parallel to the coating in order to obtain two surface elements coated on one side. This further reduces manufacturing costs and is particularly suitable for the production of relatively thin elements.
  • the support strip is preferably an optionally reinforced metal sheet, in particular an aluminum sheet.
  • a metal strip provides good mechanical strength and also has the effect of an internal radar reflector on the face of the surface element where the waves arrive after having passed through the different layers.
  • an internal radar reflector on the face of the surface element where the waves arrive after having passed through the different layers.
  • the front face of the surface element that is to say the wave penetration face is advantageously provided with a coating, of course, non-conductive, for example of the non-woven fibrous web type, in particular a fiber web. of glass, inert with respect to radiation but giving high mechanical resistance to the entire surface element, in particular good resistance to bending.
  • a coating of course, non-conductive, for example of the non-woven fibrous web type, in particular a fiber web. of glass, inert with respect to radiation but giving high mechanical resistance to the entire surface element, in particular good resistance to bending.
  • porous surface of the nonwoven veil allows sound waves to penetrate, which are absorbed by the layers of mineral wool, so that the surface element is soundproofing - in addition to its thermal insulation power.
  • the support strip 2 made of a reinforced aluminum sheet has a thickness of 30 "m and supports wide layers 3 of mineral wool , in the case shown here in glass wool, arranged in parallel. These layers of mineral wool are associated with narrower layers 4, made of a glass fiber nonwoven impregnated with graphite.
  • the fibers 5 of the layers 3 are essentially perpendicular to the support strip 2.
  • the alternating layers 3 and 4 are in a defined ratio and compose an insulation layer 6 fixed by gluing to the support strip 2 made of a sheet of aluminum mesh.
  • the surface element 1 thus has the form of a so-called lamellar mat.
  • the differences between two narrow layers 4 are chosen relative to the length of the electromagnetic waves to be absorbed, in particular radar waves, so as to obtain a resonance absorption. Furthermore, the thickness of the insulation layer can also be adapted to the length of the waves to be absorbed. A so-called narrow band absorber is then obtained.
  • German patent P 38 05 269.5 As regards other possibilities of implementation and the problem of the compressive strength of such a surface element 1, reference is made to German patent P 38 05 269.5.
  • FIG. 2 Another example of embodiment is proposed in FIG. 2 where the elements similar to those of FIG. 1 are noted with marks increased by 200.
  • the surface element 201 is produced in the form of lamellar plates by virtue of the second coating 208.
  • the support strip 202 is an aluminum sheet
  • the strips 203 of glass wool are fixed there by gluing. and are separated by narrow strips 204 into a metal sheet or for example into a nonwoven with the addition of graphite or even into a carbon nonwoven.
  • the surface 207 of the surface element 201 is coated with an additional strip 208 of a material without electrical conductivity in the present case a nonwoven web of fibers of glass with a grammage of about 170-180 g / cm2.
  • Such a veil can be penetrated by electromagnetic waves, in particular radar waves, in such a way that the latter are absorbed according to the mechanism described in the exemplary embodiment of FIG. 1.
  • no radar radiation disturbing aviation safety leaves the surface element 201.
  • This coating 208 improves the mechanical resistance, in particular the flexural resistance of the surface element 201. In addition, it protects the material of the layers 203 and 204 from fouling and deterioration.
  • the surface elements 1 and 201 are used in particular for coating buildings reflecting radar waves and which can therefore disturb air traffic control. In addition to absorbing radar waves, the surface element also provides thermal and sound insulation to the building.
  • the surface element 1 also has the advantage of being suitable for insulating curved surfaces. Furthermore, the main orientation of the fibers perpendicular to the support strip 2, 202 leads to products 1, 201 having a high compressive strength.
  • the implementation of the surface element according to the invention goes beyond its use as a radar absorber.
  • Such surface elements 1 or 201 produced according to the invention can also be used for thermal insulation and absorption of the rays in microwave appliances of all kinds.
  • an insulator When used as a radar absorber in the narrow and / or wide band spectrum, an insulator is typically used with an apparent density of 25 to 70 kg / m3.
  • FIG. 3 shows a particularly economical way of manufacturing a surface element 301.
  • the elements having the same effect have the same reference as in FIG. 1 but increased by 300.
  • a semi-finished product 310 is produced in a first step.
  • This semi-finished product 310 has an insulation layer 306 with a thickness of 2 d.
  • the lamellar strips composed of the elements 303 and 304 are then added to the lower and upper support strips 302 and 302a and fixed by gluing.
  • the semi-finished product 301 is then split in the middle using a wavy sharpening knife with simple teeth 311, thus creating two surface elements 301 in the form of a lamellar strip.
  • These elements 301 if necessary, are wound on a winding device, for example a winding core or have their surfaces 307 provided with an additional support strip.

Landscapes

  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Aerials With Secondary Devices (AREA)
  • Laminated Bodies (AREA)
  • Building Environments (AREA)
  • Manufacturing Of Multi-Layer Textile Fabrics (AREA)

Claims (7)

  1. Verfahren zur Herstellung eines Flächenelementes (1, 201 - 301) zur Absorption von elektromagnetischen Wellen, welches aus Lagen aus einem dielektrischen Material (2 - 203 - 303) besteht, zwischen denen Zwischenschichten aus einem elektrisch leitfähigen Material (4 - 204 - 304) angeordnet sind, dadurch gekennzeichnet, daß die Lagen (2 - 203 - 303) aus einem dielektrischen Material aus Mineralwolle bestehen, und daß gemäß diesem Verfahren
    - die Lagen aus Mineralwolle (2 - 203 - 303), deren Fasern im wesentlichen parallel zu den großen Oberflächen verlaufen, in Form von Bahnen oder Platten übereinandergestapelt werden, wobei Lagen (4 - 204 - 304) aus einem elektrisch leitfähigen Material in Form von Bahnen oder Platten dazwischengeschaltet sind,
    - der so gebildete Stapel durch Schneiden senkrecht zum Faserverlauf geschnitten wird, um Scheiben zu bilden, deren Schnittflächen zu den großen Oberflächen (7 - 207 - 307) des Flächenelementes (1 - 201 - 301) werden, und
    - eine die Lagen (3 - 4; 203 - 204; 303 - 304) auf mindestens einer Oberfläche jedes der Flächenelemente (1 - 201 - 301) zusammenhaltende Trägerbahn (2 - 202 - 302) aufgebracht wird.
  2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die beiden Oberflächen des Flächenelementes (1 - 201 - 301) kaschiert werden.
  3. Verfahren nach Anspruch 2, dadurch gekennzeichnet, daß ein auf zwei Oberflächen kaschiertes Flächenelement (1 - 201 - 301) parallel zur Kaschierung gespalten wird, um zwei jeweils auf einer einzigen Oberfläche kaschierte Flächenelemente (1 - 201 - 301) zu erhalten.
  4. Verfahren nach einem der vorhergehenden Ansprüche, da durch gekennzeichnet, daß als Trägerbahn (2 - 202 - 302) eine Metallfolie, gegebenenfalls eine armierte Folie, insbesondere eine Aluminiumfolie, verwendet wird.
  5. Verfahren nach einem der Ansprüche 2 bis 4, dadurch gekennzeichnet, daß eine Oberfläche des Flächenelementes mit einer Aluminiumfolie kaschiert wird und die gegenüberliegende Oberfläche (207) mit einem Faservlies (208), insbesondere einem Glasfaservlies, kaschiert wird.
  6. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Scheiben mit Hilfe eines hin- und hergehenden doppelverzahnten Wellschliffmessers abgeschnitten werden.
  7. Verfahren nach Anspruch 6, dadurch gekennzeichnet, daß das Messer derart geführt wird, daß beim vertikalen Vor- und Rücklauf jeweils Scheiben vom Stapel abgeschnitten werden.
EP90402343A 1989-08-24 1990-08-23 Verfahren zur Herstellung eines Absorbierelements für elektromagnetische Wellen Expired - Lifetime EP0414613B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3928018A DE3928018A1 (de) 1989-08-24 1989-08-24 Verfahren zur herstellung eines flaechenelementes zur absorption von elektromagnetischen wellen
DE3928018 1989-08-24

Publications (3)

Publication Number Publication Date
EP0414613A2 EP0414613A2 (de) 1991-02-27
EP0414613A3 EP0414613A3 (en) 1991-10-23
EP0414613B1 true EP0414613B1 (de) 1995-03-22

Family

ID=6387808

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90402343A Expired - Lifetime EP0414613B1 (de) 1989-08-24 1990-08-23 Verfahren zur Herstellung eines Absorbierelements für elektromagnetische Wellen

Country Status (8)

Country Link
US (1) US5230763A (de)
EP (1) EP0414613B1 (de)
JP (1) JPH03130472A (de)
AT (1) AT395127B (de)
DD (1) DD297114A5 (de)
DE (1) DE3928018A1 (de)
DK (1) DK0414613T3 (de)
ES (1) ES2071057T3 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04354103A (ja) * 1991-05-31 1992-12-08 Yoshiyuki Naito 広帯域電波吸収装置
DK42794A (da) * 1994-04-13 1995-10-14 Rockwool Int Pladeformet isoleringselement
US5736955A (en) * 1996-04-10 1998-04-07 Roif; Henry I. Aircraft landing/taxiing system using lack of reflected radar signals to determine landing/taxiing area
DE19707585A1 (de) * 1997-02-26 1998-09-03 Bosch Gmbh Robert Gehäuse mit radarabsorbierenden Eigenschaften
DE19747622A1 (de) * 1997-10-28 1999-04-29 Gruenzweig & Hartmann Dämmplatten mit einer Abschirmung gegen elektromagnetische Felder
JP3983404B2 (ja) * 1999-01-13 2007-09-26 本田技研工業株式会社 レーダ搭載車両用ゲート
DE102005001063A1 (de) * 2005-01-07 2006-07-20 Johns Manville Europe Gmbh Verwendung von Schichtmaterialien zur Abschirmung von elektromagnetischen Wellen
AU2009302581A1 (en) * 2008-10-06 2010-04-15 Flodesign Wind Turbine Corp. Wind turbine with reduced radar signature
US20110020110A1 (en) * 2008-10-06 2011-01-27 Flodesign Wind Turbine Corporation Wind turbine with reduced radar signature
GB2480064A (en) * 2010-05-04 2011-11-09 Vestas Wind Sys As RAM panel arrangements for a wind turbine tower
PL3824147T3 (pl) * 2018-07-18 2022-07-18 Rockwool A/S System izolacji wewnętrznej z kontrolą wilgoci

Family Cites Families (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD93408A (de) *
US2036467A (en) * 1931-07-31 1936-04-07 Insulite Co Sound absorptive and fireproof body
BE540736A (de) * 1953-03-28
DE977522C (de) * 1957-01-15 1966-11-03 Eltro G M B H & Co Ges Fuer St Verpackungsmaterial in Form von Behaeltern mit Interferenzabsorption fuer elektromagnetische Wellen
DE1234281B (de) * 1957-12-13
NL242147A (de) * 1959-07-03
DE1406050A1 (de) * 1959-07-03 1968-10-10 Eltro Gmbh Radar- und beschusssicheres Baumaterial
NL266525A (de) * 1960-06-30 1900-01-01
US3230995A (en) * 1960-12-29 1966-01-25 Owens Corning Fiberglass Corp Structural panel and method for producing same
US3179317A (en) * 1962-05-25 1965-04-20 Allied Chem Method and apparatus for splitting plastic foam
US3493452A (en) * 1965-05-17 1970-02-03 Du Pont Apparatus and continuous process for producing fibrous sheet structures
US3345241A (en) * 1965-12-13 1967-10-03 Owens Corning Fiberglass Corp Structural panel and method for producing same
US3549449A (en) * 1967-09-29 1970-12-22 Dow Chemical Co Method for the preparation of a composite plastic - containing product and article produced thereby
JPS4837852B1 (de) * 1969-03-22 1973-11-14
BE789716A (fr) * 1971-10-05 1973-02-01 Rockwool As Panneaux isolants et leur fabrication
US4025670A (en) * 1972-09-14 1977-05-24 English Clays Lovering Pochin & Company Limited Continuous process for lining pipes
US4025680A (en) * 1976-03-05 1977-05-24 Johns-Manville Corporation Curvable fibrous thermal insulation
DE2742186A1 (de) * 1977-07-09 1979-01-18 Gruenzweig Hartmann Glasfaser Verfahren und vorrichtung zum herstellen von mineralfaserbahnen mit etwa senkrecht zu den grossen oberflaechen verlaufenden fasern
US4327364A (en) * 1978-12-22 1982-04-27 Rockwell International Corporation Apparatus for converting incident microwave energy to thermal energy
JPS57183375A (en) * 1981-04-30 1982-11-11 Matsushita Electric Works Ltd Manufacture of asbestos board
US4381510A (en) * 1981-08-18 1983-04-26 The Boeing Co. Microwave absorber
DE3307066A1 (de) * 1983-03-01 1984-09-13 Dornier Gmbh, 7990 Friedrichshafen Mehrschichtiger faserverbundwerkstoff
US4514247A (en) * 1983-08-15 1985-04-30 North American Philips Corporation Method for fabricating composite transducers
CH664185A5 (en) * 1983-10-12 1988-02-15 Naegeli Geb Block board production method - by sawing through middle after gluing lengthwise and transverse panels either side of board
DE3626244C3 (de) * 1986-08-02 1995-06-29 Rockwool Mineralwolle Vorrichtung zum Fördern und Wenden von Gütern in Form von Lamellen
GB8629566D0 (en) * 1986-12-10 1987-09-09 Lantor Uk Ltd Composite material
DK156965C (da) * 1987-03-25 1990-03-19 Rockwool Int Udvendig, vandafvisende bygningsbeklaedning.
DE3805269A1 (de) * 1988-02-19 1989-08-31 Gruenzweig & Hartmann Daemmatte fuer koerper mit wenigstens bereichsweise gekruemmter oberflaeche, insbesondere fuer rohre, sowie ihre verwendung
US5085931A (en) * 1989-01-26 1992-02-04 Minnesota Mining And Manufacturing Company Microwave absorber employing acicular magnetic metallic filaments
DE3918383A1 (de) * 1989-06-06 1990-12-20 Messerschmitt Boelkow Blohm Fassadenaufbau von hochbauten

Also Published As

Publication number Publication date
EP0414613A2 (de) 1991-02-27
AT395127B (de) 1992-09-25
US5230763A (en) 1993-07-27
EP0414613A3 (en) 1991-10-23
ATA151490A (de) 1992-02-15
DK0414613T3 (da) 1995-07-24
JPH03130472A (ja) 1991-06-04
DD297114A5 (de) 1992-01-02
DE3928018A1 (de) 1991-02-28
ES2071057T3 (es) 1995-06-16

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