发明名称 |
Densification of Fibrous Structures by Resin Transfer Moulding for Making Thick Parts of Composite Material |
摘要 |
A fiber structure for forming the reinforcement of a part to be made is placed in a mold ( 22 ) having at least one wall formed by a flexible membrane, and then a resin composition is injected into the mold, the composition having a volatile material content of less than 25% by weight and being at a temperature of a value such that its viscosity lies in the range 0.1 Pa.s to 0.3 Pa.s. The resin is polymerized in the mold placed in an enclosure ( 20 ) with temperature being raised progressively and with polymerization including at least a final stage of polymerization under pressure in order to obtain a composite material part presenting residual porosity of less than 11% by volume.
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申请公布号 |
US2008128938(A1) |
申请公布日期 |
2008.06.05 |
申请号 |
US20050793362 |
申请日期 |
2005.12.16 |
申请人 |
BOUTEFEU BRIGITTE;DAUCHIER MARTINE;PAGES MARIE-LAURE;CAUCHOIS JEAN-PIERRE |
发明人 |
BOUTEFEU BRIGITTE;DAUCHIER MARTINE;PAGES MARIE-LAURE;CAUCHOIS JEAN-PIERRE |
分类号 |
B29C70/44;B29C70/54 |
主分类号 |
B29C70/44 |
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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