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    • 3. 发明申请
    • MANUFACTURE OF THICK PREFORM COMPOSITES VIA MULTIPLE PRE-SHAPED FABRIC MAT LAYERS
    • 通过多个预成型的织物层制造厚预制复合材料
    • WO2006127002A1
    • 2006-11-30
    • PCT/US2005/018353
    • 2005-05-25
    • HONEYWELL INTERNATIONAL INC.LA FOREST, Mark, L.GHARBIEH, Nabil, AbuFATZ, Alan, E.CIPRA, Raymond, J.SIEGMUND, Thomas, H.
    • LA FOREST, Mark, L.GHARBIEH, Nabil, AbuFATZ, Alan, E.CIPRA, Raymond, J.SIEGMUND, Thomas, H.
    • C04B35/83
    • C04B35/83B29B11/16B29C70/305B29K2033/20B29K2105/128B29K2633/20B29L2031/7482B32B2315/02C04B2237/385D04H1/4242D04H1/593F16D69/023F16D2069/008
    • A preform for a carbon-carbon composite part (55) comprising multiple layers of fibrous mats (51, 52, 53) wherein each of the fibrous mats (51, 52, 53) comprises a random carbon-containing fibrous matrix (11) within which is distributed a polymeric binder and wherein adjacent mat layers (51, 52, 53) are bound together by additional polymer binder, stitching and interlocking tabs. The preform of the present invention may be an aircraft landing system brake disc. Also, a method of manufacturing a thick multi-layer composite preform. The method includes the steps of: providing an optionally reconfigurable tool including a perforated screen through which a vacuum can be drawn; delivering chopped fibers (b), such as pitch fibers, polyacrylonitrile fibers, or mixtures thereof, to said tool while drawing vacuum therethrough, to form a fibrous object; delivering binder (c), for instance in the form of a spray, to said fibrous object; melting or curing said binder (d), for instance by the application of heat or ultraviolet light, to make a fibrous mat (51, 52, 53); assembling, preferably in the substantial absence of cutting or other mechanical modification, a plurality of said fibrous mats (51, 52, 53) and additional binder into the shape of a preform (e); and heat-pressing the resulting mat assembly (f) into a finished thick preform (55).
    • 一种用于碳 - 碳复合材料部件(55)的预成型件,其包括多层纤维垫(51,52,53),其中每个纤维垫(51,52,53)包括含有无规碳的纤维基质(11) 其分布有聚合物粘合剂,并且其中相邻的垫层(51,52,53)通过另外的聚合物粘合剂,缝合和互锁接头结合在一起。 本发明的预成型件可以是飞机着陆系统制动盘。 另外,制造厚的多层复合预型体的方法。 该方法包括以下步骤:提供可选地可重新配置的工具,其包括穿孔筛网,通过该筛孔可抽出真空; 将诸如沥青纤维,聚丙烯腈纤维或其混合物的短切纤维(b)输送到所述工具同时抽真空从而形成纤维物体; 将粘合剂(c),例如以喷雾的形式递送到所述纤维物体; 熔化或固化所述粘合剂(d),例如通过施加热或紫外线来制成纤维垫(51,52,53); 优选地在实质上不存在切割或其它机械改性的情况下将多个所述纤维垫(51,52,53)和另外的粘合剂组装成预成型件(e)的形状; 并将所得的垫组件(f)热压成成品厚的预成型件(55)。