DE15743493T1 - Vorgespannte gekrümmte Keramikplatten/Fliesen und Verfahren zur Herstellung davon - Google Patents

Vorgespannte gekrümmte Keramikplatten/Fliesen und Verfahren zur Herstellung davon Download PDF

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Publication number
DE15743493T1
DE15743493T1 DE15743493.7T DE15743493T DE15743493T1 DE 15743493 T1 DE15743493 T1 DE 15743493T1 DE 15743493 T DE15743493 T DE 15743493T DE 15743493 T1 DE15743493 T1 DE 15743493T1
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Germany
Prior art keywords
ceramic plate
curved
reinforcing fibers
fibers
concave surface
Prior art date
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Pending
Application number
DE15743493.7T
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English (en)
Inventor
Abel Cherevatsky
Benjamin Yavin
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IMI Systems Ltd
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IMI Systems Ltd
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Publication date
Application filed by IMI Systems Ltd filed Critical IMI Systems Ltd
Publication of DE15743493T1 publication Critical patent/DE15743493T1/de
Pending legal-status Critical Current

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41WEAPONS
    • F41HARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H5/00Armour; Armour plates
    • F41H5/02Plate construction
    • F41H5/04Plate construction composed of more than one layer
    • F41H5/0414Layered armour containing ceramic material
    • F41H5/0428Ceramic layers in combination with additional layers made of fibres, fabrics or plastics
    • F41H5/0435Ceramic layers in combination with additional layers made of fibres, fabrics or plastics the additional layers being only fibre- or fabric-reinforced layers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C53/00Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/56Winding and joining, e.g. winding spirally
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/44Joining a heated non plastics element to a plastics element
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    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/4805Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
    • B29C65/481Non-reactive adhesives, e.g. physically hardening adhesives
    • B29C65/4815Hot melt adhesives, e.g. thermoplastic adhesives
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    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C70/00Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28Shaping operations therefor
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    • B29C70/34Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
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    • B29C70/04Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
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Abstract

Eine vorgespannte gekrümmte Platte, die eine gekrümmte Keramikplatte (10) mit zumindest einer konkaven Oberfläche (12) aufweist, wobei die gekrümmte Keramikplatte (10) mit gespannten Verstärkungsfasern (16) umhüllt und haftend verbunden ist, wobei die Verstärkungsfasern (16) zuerst unter Spannung um die Keramikplatte (10) herum gewickelt werden und von der konkaven Oberfläche (12) beabstandet sind und nachfolgend Druck ausgesetzt werden, um die Verstärkungsfasern (16) zu dehnen und mit den Oberflächen (12, 14) der Keramikplatte (10) zu verbinden, wobei die Zugbelastung der Fasern (16) auf das Verbinden hin eine Spannung in die Keramikplatte (10) einführt.

Claims (14)

  1. Eine vorgespannte gekrümmte Platte, die eine gekrümmte Keramikplatte (10) mit zumindest einer konkaven Oberfläche (12) aufweist, wobei die gekrümmte Keramikplatte (10) mit gespannten Verstärkungsfasern (16) umhüllt und haftend verbunden ist, wobei die Verstärkungsfasern (16) zuerst unter Spannung um die Keramikplatte (10) herum gewickelt werden und von der konkaven Oberfläche (12) beabstandet sind und nachfolgend Druck ausgesetzt werden, um die Verstärkungsfasern (16) zu dehnen und mit den Oberflächen (12, 14) der Keramikplatte (10) zu verbinden, wobei die Zugbelastung der Fasern (16) auf das Verbinden hin eine Spannung in die Keramikplatte (10) einführt.
  2. Die gekrümmte Platte gemäß Anspruch 1, bei der die Keramikplatte (10) bei erhöhter Temperatur Druck ausgesetzt ist.
  3. Die gekrümmte Platte gemäß einem der Ansprüche 1 oder 2, wobei das Verbinden entweder durch Aufbringen eines Haftmittels auf die Oberflächen (12, 14) der gekrümmten Keramikplatte (10) vor dem Wickeln der Verstärkungsfasern (16) und/oder durch Beschichten der Verstärkungsfasern (16) vor dem Wickeln erfolgt.
  4. Die gekrümmte Platte gemäß einem der Ansprüche 1 bis 3, bei der die Keramikplatte (10) eine Keramikplattenkachel ist.
  5. Die gekrümmte Platte gemäß Anspruch 4, bei der die Keramikplatte (10) aus Aluminiumoxid (Al2O3), heißgepresstem, gesintertem oder reaktionsgebundenem Borcarbid (B4C), Siliciumcarbid (SiC), Borsiliciumcarbid (BSC), Titandiborid (TiB2), Aluminiumnitrid, Siliciumnitrid, gesintertem Siliciumcarbid, gesintertem Siliciumnitrid und Glaskeramik oder Kombinationen derselben hergestellt ist.
  6. Die gekrümmte Platte gemäß einem der Ansprüche 1 bis 5, bei der die Keramikplatte (10) eine Dicke zwischen 3 und 30 mm aufweist.
  7. Die gekrümmte Platte gemäß einem der Ansprüche 1 bis 6, bei der die Verstärkungsfasern (16) aus Fasern aus Aramid, Poly(p-phenylen-2,6-benzobisoxazol), S- oder E-Glas, Kohlenstoff, Thermokunststoffen (Polyamid, HMWPE, Polyethylen, Polypropylen) oder Metall (Bor, Stahl, Aluminium) oder deren Kombination ausgewählt sind.
  8. Die gekrümmte Platte gemäß einem der Ansprüche 1 bis 7, bei der das Haftmittel aus Haftmitteln aus Epoxid, Phenolharz, Thermokunststoff, wärmehartbaren Haftmitteln, kautschuk- oder elastomerbasierten Haftmitteln und Keramikhaftmitteln ausgewählt ist.
  9. Die gekrümmte Platte gemäß einem der Ansprüche 1 bis 8, die ferner einen entfernbaren Abstandhalter (42) aufweist, der zwischen der konkaven Oberfläche (12) der Keramikplatte (10) und den Verstärkungsfasern (16) eingefügt ist.
  10. Die gekrümmte Platte gemäß Anspruch 10, bei der der Abstandhalter (42) während des Anlegens von Druck bei erhöhter Temperatur zumindest teilweise geschmolzen wird.
  11. Ein Verfahren zum Herstellen einer vorgespannten gekrümmten Platte mit zumindest einer konkaven Oberfläche (12), das folgende Schritte aufweist: Wickeln gespannter Verstärkungsfasern (16) um eine gekrümmte Keramikplatte (10), wobei zwischen der konkaven Oberfläche (12) der Keramikplatte (10) und den gewickelten Verstärkungsfasern (16) ein Abstand (15) belassen wird; Anlegen eines äußeren Drucks an die Verstärkungsfasern (16), um die Fasern (16) zu dehnen, bis dieselben die konkave Oberfläche (12) kontaktieren und sich mit derselben verbinden, und Abkühlen der Platte und Entfernen des äußeren Drucks nach dem Verbinden.
  12. Das Verfahren gemäß Anspruch 11, das ferner ein Erwärmen der gespannten Fasern (16) auf eine erhöhte Temperatur aufweist, während des Schritts des Anlegens eines äußeren Drucks an die gespannten Fasern (16), um die Fasern (16) zu dehnen, bis dieselben die konkave Oberfläche (12) kontaktieren und sich mit derselben verbinden.
  13. Das Verfahren gemäß Anspruch 11, das ferner ein Einfügen eines entfernbaren Abstandhalters (42) zwischen der konkaven Oberfläche (12) und den Verstärkungsfasern (16) aufweist, um die Fasern (16) von der konkaven Oberfläche (12) zu beabstanden und die Länge derselben zu erhöhen, bevor die faserumwickelte Keramikplatte (10) Druck und Temperatur ausgesetzt wird.
  14. Das Verfahren gemäß Anspruch 13, das ferner ein Sicherstellen aufweist, dass der entfernbare Abstandhalter (42) während des Anlegens von äußerem Druck bei erhöhter Temperatur zumindest teilweise schmilzt.
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IL230775A IL230775B (en) 2014-02-02 2014-02-02 Pre-stressed curved ceramic panels/tiles and a method for their production
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EP3099460A1 (de) 2016-12-07
US10563961B2 (en) 2020-02-18
IL230775A0 (en) 2014-08-31
AU2015212335A1 (en) 2016-08-11
AU2015212335B2 (en) 2019-05-23
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WO2015114632A1 (en) 2015-08-06
US20190063879A1 (en) 2019-02-28
EP3099460A4 (de) 2017-10-04
IL230775B (en) 2018-12-31
CA2937872C (en) 2020-11-03
US10139201B2 (en) 2018-11-27
US20160356576A1 (en) 2016-12-08
CA2937872A1 (en) 2015-08-06

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