发明名称 |
REMOVABLE CORE FOR PRODUCING TUBULAR STRUCTURES FROM FIBRE COMPOSITES |
摘要 |
A removable core for use in the production of tubular structures from fibre reinforced resin materials. The body of the core is composed of a foam material which softens or collapses under the action of heat sufficient to cure the resin material but is hard and cross-sectionally dimensionally stable under less heat than that. The core is provided on the outside with a heat shrunk plastic tube or hose which closely embraces the foam body and serves as a coating therefor, thereby enhancing the rigidity and stability of shape of the core and imparting thereto a smooth surface. |
申请公布号 |
EP0170178(A3) |
申请公布日期 |
1987.07.22 |
申请号 |
EP19850109100 |
申请日期 |
1985.07.20 |
申请人 |
DEUTSCHE FORSCHUNGS- UND VERSUCHSANSTALT FUR LUFT- UND RAUMFAHRT E.V. |
发明人 |
SCHUTZE, RAINER, DIPL.-ING. |
分类号 |
B29C33/44;B29C33/52;B29C61/00;(IPC1-7):B29C33/52 |
主分类号 |
B29C33/44 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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