Moulded body for producing a fibre composite component
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B29C-033/48
B29C-070/44
B29C-073/04
B29C-073/30
B29C-033/56
출원번호
US-0108203
(2011-05-16)
등록번호
US-9409321
(2016-08-09)
우선권정보
DE-10 2008 044 069 (2008-11-26)
발명자
/ 주소
Dittmann, Ralf-Peter
Kaschel, Sebastian
Engler, Lothar
출원인 / 주소
Airbus Operations GmbH
대리인 / 주소
Jenkins, Wilson, Taylor & Hunt, P.A.
인용정보
피인용 횟수 :
0인용 특허 :
5
초록▼
A shaped body and a method for producing fiber composite components, wherein the shaped body is formed using a paper and/or cardboard material, at least in part. This makes possible cost-effective manufacture of hollow profiles of any desired length from fiber composite materials, in particular from
A shaped body and a method for producing fiber composite components, wherein the shaped body is formed using a paper and/or cardboard material, at least in part. This makes possible cost-effective manufacture of hollow profiles of any desired length from fiber composite materials, in particular from prepreg materials and/or reinforcing fiber arrangements which are subsequently impregnated with a curable plastics material. The paper and/or cardboard material can be provided with further properties, such as gas-tightness and non-stick properties, by applying suitable functional layers. Moreover, the material makes it possible to produce highly dimensionally stable shaped bodies or support cores, in such a way that fiber composite components having highly reproducible spatial dimensions can be produced. In addition, after curing, the shaped bodies can be collapsed in a simple manner by applying a vacuum and thus removed from the fiber composite component without residues.
대표청구항▼
1. A method for producing a fibre composite component by using a thermosetting plastics material, comprising: forming at least one support core using at least one of cardboard and a paper, defining a geometry of the fibre composite component by the at least one support core, at least in regions,wher
1. A method for producing a fibre composite component by using a thermosetting plastics material, comprising: forming at least one support core using at least one of cardboard and a paper, defining a geometry of the fibre composite component by the at least one support core, at least in regions,wherein the support core, at least in regions of said support core, comprises a functional layer integrated in said support core, wherein said functional layer is a non-stick layer and a gastight sealing layer,providing the at least one support core with a curable fibre composite material,curing the curable fibre composite material to form a finished fibre composite component, wherein due to a gastight sealing of the support core in conjunction with a sealing surrounding the fibre composite component to be cured provides a gastight enclosure of the fibre composite component, and applying a pressure differential between the curable fibre composite component and the surrounding atmosphere during the cure process, andcollapsing and removing the at least one support core from the finished fibre composite component. 2. The method according to claim 1, wherein at least one support core is provided with a curable fibre composite material comprising a prepreg material. 3. The method according to claim 1, wherein at least one support core is provided with a dry reinforcing fibre arrangement, at least in regions, followed by: impregnating the dry reinforcing fibre arrangement with a thermosetting plastic material to produce a curable fibre composite material,curing the curable fibre composite material, andremoving the at least one support core from the finished fibre composite component. 4. The method according to claim 3, wherein the at least one support core having the applied fibre composite material is further covered with a vacuum foil, at least in regions, to produce a construction. 5. The method according to claim 4, wherein the edges of the construction are sealed in a gas tight manner from the vacuum foil using sealing tapes to achieve a gastight closure. 6. The method according to claim 4, wherein the construction is cured by introducing it into at least one of an autoclave, an oven, at room temperature and at normal pressure. 7. The method according to claim 1, wherein the at least one support core is collapsed after curing by applying a vacuum to the at least one support core. 8. The method according to claim 1, wherein the at least one support core is removed from the fibre composite component using at least one of a liquid and gaseous solvent. 9. A support core for producing a fibre composite component, comprising: a plurality of contact surfaces situated at least in certain regions of the support core, wherein said plurality of contact surfaces are provided for shaping a component to be cured being formed by a curable fibre composite material, and at least in regions of said support core a functional layer integrated in said support core, wherein said functional layer is a non-stick layer and a gastight sealing layer,wherein the support core is formed using at least one of a cardboard and a paper, andwherein the support core can be collapsed due to a shape change by deformation of the at least one cardboard and paper and removed from a finished fibre composite component, andwherein the gastight sealing layer provides a gastight sealing of the supporting core, wherein the gastight sealing in conjunction with a sealing surrounding the fibre composite component to be cured provides a gastight enclosure of the fibre composite component to be cured on the plurality of contact surfaces of the support core capable of applying a pressure differential between the curable fibre composite component and the surrounding atmosphere during the curing process. 10. The support core according to claim 9, wherein the support core is used to produce a hollow profile. 11. The support core according to claim 9, wherein the support core has a cross-section formed from at least one of a triangular, rectangular, trapezium, annular, oval and elliptical shape. 12. The support core according to claim 9, wherein the support core is formed using at least two partial support cores. 13. The support core according to claim 12, wherein the partial support cores are joined together, by at least one of an adhesively and positive connection method. 14. The support core according to claim 9, wherein the support core is removable from the fibre composite component by using at least one of a vacuum and a solvent. 15. The support core according to claim 9, wherein the support core is capable of being applied positively into a cured fibre composite component at least in regions using an overpressure, making it possible to carry out field repair work on the cured fibre composite component.
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