BINDERLESS PREFORM MANUFACTURING METHOD AND MOLD THEREFORE
    1.
    发明申请
    BINDERLESS PREFORM MANUFACTURING METHOD AND MOLD THEREFORE 审中-公开
    无边界预制件制造方法和模具

    公开(公告)号:WO2005056262A3

    公开(公告)日:2005-12-22

    申请号:PCT/US2004035660

    申请日:2004-10-27

    Abstract: The present invention makes use of loose fibrous material (for instance, chopped fibers) as reinforcement matrix material in the manufacture of carbon-carbon composites. In accordance with this invention, a constraint fixture is provided which can be separated from the mold. The constraint fixture has an internal shape corresponding to the shape of a desired preform component, with the internal shape being defined by a bottom plate (2), an annular ejector plate (3, 3'), a inner wall (10), an outer wall (4), and an annular top plate (11, 11'). The constraint fixture is normally made of metal, porous ceramic, or carbon material. The constraint fixture of the mold holds the loose matrix materials (fibers, along with any fillers and/or additives). The mold assembly itself is segmented, so that the constraint- fixture and the loose fill materials in the fixture can be removed and subjected to further processing as a unit. Such further processing may include Chemical Vapor Deposition or resin or pitch infiltration or Resin Transfer Molding. The preform matrix may remain in the constraint fixture through such processing steps as densification and until it is removed therefrom for final machining.

    Abstract translation: 本发明在制造碳 - 碳复合材料时,使用松散的纤维材料(例如短切纤维)作为增强基体材料。 根据本发明,提供了可以与模具分离的约束夹具。 约束夹具具有对应于所需预成型件部件的形状的内部形状,其内部形状由底板(2),环形顶出板(3,3'),内壁(10), 外壁(4)和环形顶板(11,11')。 约束夹具通常由金属,多孔陶瓷或碳材料制成。 模具的约束夹具保持松散的基质材料(纤维,以及任何填料和/或添加剂)。 模具组件本身被分段,使得夹具中的约束夹具和松散填充材料可以被去除并且作为一个单元被进一步加工。 这种进一步的处理可以包括化学气相沉积或树脂或沥青渗透或树脂转移模塑。 预成型体基体可以通过诸如致密化的加工步骤保持在约束夹具中,并且直到其从中移除以进行最终加工。

    MANUFACTURE OF FUNCTIONALLY GRADED CARBON-CARBON COMPOSITES
    2.
    发明申请
    MANUFACTURE OF FUNCTIONALLY GRADED CARBON-CARBON COMPOSITES 审中-公开
    功能性碳化碳复合材料的制造

    公开(公告)号:WO2005115944A2

    公开(公告)日:2005-12-08

    申请号:PCT/US2005018352

    申请日:2005-05-25

    Abstract: Annular brake disc preform (15), wherein 40 to 80 layers of reinforcement fibers of at least two different lengths (11, 19) ranging from 10-60 mm are distributed in a planar gradient throughout the body of the preform, with the reinforcement fibers located near the exterior planes of the disc being predominately shorter fibers (11) and with the reinforcement fibers located in the central planes of the disc being predominately longer fibers (19). Also, process of making carbon-carbon composite preforms by: providing chopped pitch or PAN fibers (11, 19) of at least two different lengths; directing a robotic spraying apparatus to spray the chopped fibers into an annular mold (5) in 40 to 80 concentric iterations of chopped fiber deposition to provide a matrix of fibers in the mold; depositing a curable binder into the mold to intermix the binder with the fiber matrix; compressing the fiber matrix and curable binder within the mold; curing the binder to form a preform matrix; filling the preform matrix with pitch to form a pitch matrix; and subjecting the pitch matrix to chemical vapor deposition to form a carbon-carbon composite preform (15).

    Abstract translation: 环形制动盘预制件(15),其中具有10-60mm的至少两个不同长度(11,19)的40至80层增强纤维以预制件的整个主体分布在平面梯度中,其中增强纤维 位于盘的外部平面附近的主要是较短的纤维(11),并且位于盘的中心平面中的增强纤维主要是较长的纤维(19)。 另外,通过以下方式制造碳 - 碳复合预型件的方法:提供至少两个不同长度的短切沥青或PAN纤维(11,19); 引导机器人喷涂设备以短时间纤维沉积的40至80次同心迭代将切碎的纤维喷射到环形模具(5)中以在模具中提供纤维矩阵; 将可固化粘合剂沉积到模具中以使粘合剂与纤维基质混合; 在模具内压缩纤维基质和可固化粘合剂; 固化粘合剂以形成预成型体基体; 用间距填充预成型体基体以形成间距矩阵; 并对沥青基体进行化学气相沉积以形成碳 - 碳复合预制件(15)。

    MANUFACTURE OF THICK PREFORM COMPOSITES VIA MULTIPLE PRE-SHAPED FABRIC MAT LAYERS
    3.
    发明申请
    MANUFACTURE OF THICK PREFORM COMPOSITES VIA MULTIPLE PRE-SHAPED FABRIC MAT LAYERS 审中-公开
    通过多个预成型的织物层制造厚预制复合材料

    公开(公告)号:WO2006127002A1

    公开(公告)日:2006-11-30

    申请号:PCT/US2005/018353

    申请日:2005-05-25

    Abstract: 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).

    Abstract translation: 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)。

    BINDERLESS PREFORM MANUFACTURING METHOD AND MOLD THEREFORE
    5.
    发明申请
    BINDERLESS PREFORM MANUFACTURING METHOD AND MOLD THEREFORE 审中-公开
    无粘结预制制造方法及其模具

    公开(公告)号:WO2005056262A8

    公开(公告)日:2005-11-24

    申请号:PCT/US2004035660

    申请日:2004-10-27

    Abstract: The present invention makes use of loose fibrous material (for instance, chopped fibers) as reinforcement matrix material in the manufacture of carbon-carbon composites. In accordance with this invention, a constraint fixture is provided which can be separated from the mold. The constraint fixture has an internal shape corresponding to the shape of a desired preform component, with the internal shape being defined by a bottom plate (2), an annular ejector plate (3, 3'), a inner wall (10), an outer wall (4), and an annular top plate (11, 11'). The constraint fixture is normally made of metal, porous ceramic, or carbon material. The constraint fixture of the mold holds the loose matrix materials (fibers, along with any fillers and/or additives). The mold assembly itself is segmented, so that the constraint- fixture and the loose fill materials in the fixture can be removed and subjected to further processing as a unit. Such further processing may include Chemical Vapor Deposition or resin or pitch infiltration or Resin Transfer Molding. The preform matrix may remain in the constraint fixture through such processing steps as densification and until it is removed therefrom for final machining.

    Abstract translation: 本发明利用松散的纤维材料(例如短切纤维)作为碳 - 碳复合材料制造中的增强基体材料。 根据本发明,提供了可以与模具分离的约束夹具。 约束夹具具有对应于期望的预成形件部件的形状的内部形状,内部形状由底板(2),环形顶出板(3,3'),内壁(10), 外壁(4)和环形顶板(11,11')。 约束夹具通常由金属,多孔陶瓷或碳材料制成。 模具的约束夹具容纳松散的基体材料(纤维以及任何填料和/或添加剂)。 模具组件本身是分段的,因此夹具中的约束夹具和松散填充材料可以被移除并作为一个单元进行进一步处理。 这种进一步的处理可以包括化学气相沉积或树脂或沥青渗透或树脂传递模塑。 预成型坯基体可以通过致密化之类的处理步骤保留在约束固定装置中,并且直到从预制坯基体中去除以进行最终加工。

    BINDERLESS PREFORM MANUFACTURE
    6.
    发明申请
    BINDERLESS PREFORM MANUFACTURE 审中-公开
    无边界预制件制造

    公开(公告)号:WO2005056262A2

    公开(公告)日:2005-06-23

    申请号:PCT/US2004/035660

    申请日:2004-10-21

    IPC: B29C

    Abstract: The present invention makes use of loose fibrous material (for instance, chopped fibers) as reinforcement matrix material in the manufacture of carbon-carbon composites. In accordance with this invention, a constraint fixture is provided which can be separated from the mold. The constraint fixture has an internal shape corresponding to the shape of a desired preform component, with the internal shape being defined by a bottom plate (2), an annular ejector plate (3, 3'), a inner wall (10), an outer wall (4), and an annular top plate (11, 11'). The constraint fixture is normally made of metal, porous ceramic, or carbon material. The constraint fixture of the mold holds the loose matrix materials (fibers, along with any fillers and/or additives). The mold assembly itself is segmented, so that the constraint- fixture and the loose fill materials in the fixture can be removed and subjected to further processing as a unit. Such further processing may include Chemical Vapor Deposition or resin or pitch infiltration or Resin Transfer Molding. The preform matrix may remain in the constraint fixture through such processing steps as densification and until it is removed therefrom for final machining.

    Abstract translation: 本发明在制造碳 - 碳复合材料时,使用松散的纤维材料(例如短切纤维)作为增强基体材料。 根据本发明,提供了可以与模具分离的约束夹具。 约束夹具具有对应于所需预成型件部件的形状的内部形状,其内部形状由底板(2),环形顶出板(3,3'),内壁(10), 外壁(4)和环形顶板(11,11')。 约束夹具通常由金属,多孔陶瓷或碳材料制成。 模具的约束夹具保持松散的基质材料(纤维,以及任何填料和/或添加剂)。 模具组件本身被分段,使得夹具中的约束夹具和松散填充材料可以被去除并且作为一个单元被进一步加工。 这种进一步的处理可以包括化学气相沉积或树脂或沥青渗透或树脂转移模塑。 预成型体基体可以通过诸如致密化的加工步骤保持在约束夹具中,并且直到其从中移除以进行最终加工。

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