Method for producing a composite molded body and corresponding composite molded body
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A43B-001/14
B29C-070/44
B29C-070/54
B29C-033/58
B29C-033/60
B29C-051/10
B29C-070/18
B29K-031/00
B29L-031/50
출원번호
US-0910238
(2014-08-05)
등록번호
US-9961955
(2018-05-08)
우선권정보
DE-10 2013 108 430 (2013-08-05)
국제출원번호
PCT/EP2014/066766
(2014-08-05)
국제공개번호
WO2015/018809
(2015-02-12)
발명자
/ 주소
Tajik, Mahmoud Reza
출원인 / 주소
ORTHO-NOVA GmbH für Orthopädie-Technik
대리인 / 주소
The Maxham Firm
인용정보
피인용 횟수 :
0인용 특허 :
11
초록▼
An apparatus and method for producing a composite molded body in which several layers of prepregs are laid over one another, adhesively bonded to each other and cured under pressure and/or vacuum, wherein the prepreg layers laid over one another are introduced into an airtight shell, the interior of
An apparatus and method for producing a composite molded body in which several layers of prepregs are laid over one another, adhesively bonded to each other and cured under pressure and/or vacuum, wherein the prepreg layers laid over one another are introduced into an airtight shell, the interior of the shell is connected to a vacuum source and evacuated and the molded body is cured together with the shell in a furnace. In order to develop a corresponding method and a composite molded body which can be produced with it, which does not have at least some of the above disadvantages, an antifriction agent is introduced into the interior of the shell before the evacuation of the shell.
대표청구항▼
1. A method for producing a composite molded body in which several layers of prepregs are laid over one another, adhesively bonded to each other and cured under pressure and/or vacuum, the method comprising: introducing the prepreg layers laid over one another into an airtight shell;connecting the i
1. A method for producing a composite molded body in which several layers of prepregs are laid over one another, adhesively bonded to each other and cured under pressure and/or vacuum, the method comprising: introducing the prepreg layers laid over one another into an airtight shell;connecting the interior of the shell to a vacuum source;introducing an antifriction agent into the interior of the shell; thenevacuating the interior of the shell to form the molded body; andcuring the molded body together with the shell in a furnace. 2. The method according to claim 1, wherein the shell is comprised of a PVA film tube. 3. The method according to claim 1, wherein the antifriction agent is a powder. 4. The method according to claim 3, wherein the antifriction agent powder has characteristics of antifriction agent powders used in orthopedics for silicone and urethane parts. 5. The method according to claim 1, wherein at least one prepreg layer is made of a carbon fiber prepreg, at least one further prepreg layer made of another fiber material is applied to the at least one carbon fiber layer and adhesively bonded, and the molded body is cured at increased temperature; wherein the at least one further prepreg layer is comprised mainly of fibers which are not carbon fibers and which are selected from the group which consists of mineral fibers, natural fibers, and plastic fibers. 6. The method according to claim 5, wherein a prepreg made of high-performance polyethylene (HPPE) is used as the at least one further prepreg. 7. The method according to claim 6, wherein one or more carbon prepregs are laid over one another and each covered on both sides with an HPPA prepreg, which project beyond the outline of the carbon prepregs and these layers are introduced into the shell provided with the antifriction agent. 8. The method according to claim 5, wherein a film or a textile material layer is applied to the at least one further prepreg layer on a side of it facing away from the carbon fiber layers and is introduced together with the prepreg layers with antifriction agent into the shell which is subsequently evacuated. 9. The method according claim 1, wherein the molded body consisting of prepregs laid over one another which is not yet cured is applied to a porous molded body and introduced together with the molded body into the airtight shell. 10. The method according to claim 9, wherein the mold is the cast or the plastic impression or replica of a human body part. 11. The method according to claim 9, wherein a film, which is provided with an antifriction agent at least on the side facing the molded body, is inserted between the mold and the molded body. 12. A composite molded body which consists of several layers of pre-impregnated fibers (prepregs) which are joined to each other, which are laid over one another and thereby adhesively bonded to each other and evacuated in a shell and subsequently cured in the shell, wherein the molded body has been produced according to the method according to claim 1, and a surface of the molded body which is in contact with the shell during the curing is completely freed from the material of the shell. 13. The composite molded body according to claim 12, wherein at least one of the prepreg layers has at least predominantly carbon fibers and at least one further layer consists mainly of fibers which are not carbon fibers, and contains fibers selected from the group which consists of mineral fibers, natural fibers, and plastic fibers. 14. The composite molded body according to claim 13, wherein the at least one further layer in contact with a carbon fiber layer contains primarily high-performance polyethylene (HPPE) fibers. 15. The composite molded body according to claim 13, wherein the outline of the at least one carbon fiber layer lies completely within the outline of the at least one further layer. 16. The composite molded body according to claim 13, wherein the at least one carbon fiber layer is covered on both sides in each case by at least one of the at least one further layer. 17. The composite molded body according to claim 16, wherein the at least one further layer comprises two further layers covering the carbon fiber layer on both sides and are joined directly to each other outside of the outline of the carbon fiber layer. 18. The composite molded body according to claim 13, wherein the at least one further layer is covered on at least one side of the molded body by a layer of a textile material which is not pre-impregnated or a plastic film. 19. The composite molded body according to claim 12, wherein the molded body has at least two and preferably at least three layers made of carbon fiber prepregs lying over one another. 20. The composite molded body according to claim 19, wherein carbon fiber layers lying over one another have successively smaller outlines and in each case do not protrude beyond the outline of the previous layer, wherein the carbon fiber layer with the largest outline is in contact with a further layer. 21. The composite molded body according to claim 12, wherein the molded body is at least part of a prosthesis or orthosis. 22. The composite molded body according to claim 21, wherein an article made of metal or another material comprises a molded part integrated into the composite molded body.
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