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1. WO2020129007 - COMPOSITE MATERIAL AND METHOD FOR PRODUCING THE SAME

Publication Number WO/2020/129007
Publication Date 25.06.2020
International Application No. PCT/IB2019/061196
International Filing Date 20.12.2019
Chapter 2 Demand Filed 18.05.2020
IPC
B32B 5/02 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
5Layered products characterised by the non-homogeneity or physical structure of a layer
02characterised by structural features of a layer comprising fibres or filaments
B32B 5/12 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
5Layered products characterised by the non-homogeneity or physical structure of a layer
02characterised by structural features of a layer comprising fibres or filaments
12characterised by the relative arrangement of fibres or filaments of adjacent layers
B32B 5/26 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
5Layered products characterised by the non-homogeneity or physical structure of a layer
22characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous
24one layer being a fibrous or filamentary layer
26another layer also being fibrous or filamentary
B32B 37/06 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
37Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
06characterised by the heating method
Applicants
  • LEONARDO S.P.A. [IT]/[IT]
Inventors
  • GALLO, Nicola
  • CORVAGLIA, Stefano Giuseppe
  • PAPPADA', Silvio
Agents
  • D'ANGELO, Fabio
  • BOGGIO, Luigi
  • PLEBANI, Rinaldo
  • BONGIOVANNI, Simone
  • FRANZOLIN, Luigi
  • CERBARO, Elena
  • GIANNINI, Manuela
  • BERGADANO, Mirko
  • FIUSSELLO, Francesco
  • DI SCIUVA, Michele
  • LOVINO, Paolo
  • NANNUCCI, Lorenzo
  • ECCETTO, Mauro
  • CERNUZZI, Daniele
  • BERNOTTI, Andrea
  • MACCAGNAN, Matteo
  • MANGINI, Simone
  • MANCONI, Stefano
  • BELLEMO, Matteo
  • BOSMAN, Cesare
  • ZAMPROGNO, Bruno
  • ANDREOTTI, Erika
  • CASCIANO, Lidia
  • SPALLA, Pietro
  • BOSIA, Alessandra
  • BERTOLOTTO, Simone
  • MUSCONI, Roberta
  • CATALDI, Giulia
  • MARTINI, Gabriele
  • SORDINI, Lorenzo
  • SEEGER, Heiko
  • CICCHETTI, Angelo
  • FARALDI, Marco
Priority Data
10201800002052120.12.2018IT
Publication Language English (EN)
Filing Language Italian (IT)
Designated States
Title
(EN) COMPOSITE MATERIAL AND METHOD FOR PRODUCING THE SAME
(FR) MATÉRIAU COMPOSITE ET SON PROCÉDÉ DE FABRICATION
Abstract
(EN)
A composite material, in particular for aeronautical applications, comprising : a first pre- impregnated layer (2) having a resin-based matrix (3) reinforced with fibres (4) to give the first layer (2) predefined mechanical properties; and a second layer (6, 6') of magnetic field intensifier material, superimposed on a face (5) of the first layer (2) and joined to the first layer (2) along that face (5); the second layer (6, 6') comprises electrically conductive fibres (7), preferably of carbon, dispersed in the second layer (6, 6') in at least two directions with different orientations and having eguivalent electrical resistivity, parallel to the aforementioned face (5), of less than 600 μΩm, preferably less than 200 µΩm and even more preferably less than 100 μΩm, so as to facilitate localized heating by electromagnetic induction; the first and second layers (2; 6, 6') joined together define a lamina (L, L' ) of super- weldable composite material.
(FR)
Un matériau composite, en particulier pour des applications aéronautiques, comprend : une première couche pré-imprégnée (2) ayant une matrice à base de résine (3) renforcée par des fibres (4) pour donner à la première couche (2) des propriétés mécaniques prédéfinies ; et une seconde couche (6, 6') d'un matériau intensificateur de champ magnétique, superposée sur une face (5) de la première couche (2) et reliée à la première couche (2) le long de ladite face (5) ; la seconde couche (6, 6') comprend des fibres électriquement conductrices (7), de préférence en carbone, dispersées dans la seconde couche (6, 6') dans au moins deux directions avec des orientations différentes et ayant une résistivité électrique édite, parallèle à la face précitée (5), inférieure à 600 μΩm, de préférence inférieure à 200 µΩm et encore plus préférablement inférieure à 100 μΩmι, de manière à faciliter un chauffage localisé par induction électromagnétique ; les première et seconde couches (2 ; 6, 6') jointes ensemble définissent une lamelle (L, 1') de matériau composite super-soudable.
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