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1.发明授权Process for producing a laminated tubular fibrous structure for use as reinforcing structure for a composite piece 失效用于复合片的加强结构的叠层管状纤维结构体的制造方法
公开(公告)号：US4986863A
公开(公告)日：1991-01-22
申请号：US253223
申请日：1988-09-28
CPC分类号： B29C70/222 , B29C53/08 , B29C53/305 , Y10T156/1015
摘要： A laminated tubular fibrous structure is produced using a tubular braid and folding over its wall in order to form corrugations or wrinkles superposed in axial direction. The tubular braid is brought over a mandrel of which the inner diameter corresponds to that of the structure to be produced, by causing the braid to pass around a forming head which is mounted on the mandrel and of which the outer diameter corresponds to that of the structure to be produced, and at least one yarn is wound following a helicoidal path on the braid, around the mandrel and at the front of the forming head, between said head and a counter-piece of which the faces in facing relationship have shapes corresponding to the shape of the wrinkles to be produced, the winding of the yarn being performed while the forming head is moving away from the counter-piece progressively with the formation of the wrinkles. The structure is particularly suitable for use as reinforcing structure for producing pieces in composite material, such as ablative thermal protections for solid propellant rocket motors.
摘要翻译： 使用管状编织物制造层压管状纤维结构，并在其壁上折叠以形成沿轴向重叠的褶皱或褶皱。 通过使编织物绕安装在心轴上的成形头通过，将管状编织带通过其内径对应于待生产的结构的心轴，并且其外径对应于 要生产的结构，并且至少一根纱线沿着编织物上的螺旋形路径，围绕心轴和形成头部的前部缠绕在所述头部和相对的面对面之间具有相应形状的对置件 为了产生皱纹的形状，在成形头随着皱纹的形成逐渐离开对立件而进行纱线的缠绕。 该结构特别适用于复合材料制造件的增强结构，例如用于固体推进剂火箭发动机的烧蚀保护。
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2.发明授权Method for shaping a fibrous reinforcement texture used in the manufacture of a composite material part 失效形成复合材料部件制造中使用的纤维增强纹理的方法
公开(公告)号：US5154948A
公开(公告)日：1992-10-13
申请号：US674502
申请日：1991-03-22
申请人： Yves D. Patrigeon , Michel C. Vives
发明人： Yves D. Patrigeon , Michel C. Vives
CPC分类号： C04B35/83 , C04B35/80 , Y10S427/10
摘要： The shaping of the fibrous texture is at least partly achieved by applying a deformable layer or strip, such as a cloth, made from a material having a thermal expansion coefficient different from that of the material constituting the fibrous texture. The layer or strip is stretched over the fibrous texture or is held in position against the texture by being wound over in order to obtain the degree of compaction wanted for the fibrous texture. The texture is densified by chemical vapor infiltration of the material constituting the matrix of the composite.
摘要翻译： 至少部分地通过施加由具有与构成纤维织构的材料的热膨胀系数不同的热膨胀系数的材料制成的可变形层或带（例如布）来实现纤维织构的成形。 该层或条被拉伸在纤维质地上，或通过缠绕而保持在与纹理相对的位置上，以获得纤维质地所需的压实度。 通过构成复合材料基质的材料的化学气相渗透致密化纹理。
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