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    • 2. 发明申请
    • ACTIVATED CARBON TO IMMOBILIZE PITCH IN CONSTRAINT FIXTURE DURING CARBONIZATION
    • 活性碳在碳化过程中固定在约束条件下
    • WO2006138332A1
    • 2006-12-28
    • PCT/US2006/023085
    • 2006-06-13
    • HONEYWELL INTERNATIONAL INC.SOOS, Barry, P.LA FOREST, Mark, L.FRYSKA, Slawomir T.SIMPSON, Allan, H.
    • SOOS, Barry, P.LA FOREST, Mark, L.FRYSKA, Slawomir T.SIMPSON, Allan, H.
    • F16D69/02C04B35/83F27B17/00
    • F16D69/023C04B35/83F27B17/0016
    • Method of carbonizing pitch-infiltrated fibrous annular preform by: infiltrating the preform with pitch; placing the pitch-infiltrated preform in a constraint fixture having an ejector base plate, an inner wall, an outer 5 wall, and a top press plate; selecting the relative sizes of the preform and the constraint fixture so that a layer of inert friable material may be situated between the preform and walls of the constraint fixture; placing inert friable material (e.g., activated carbon) between the preform and the top, bottom, and walls of the constraint fixture; and subjecting the pitch- 10 infiltrated fibrous preform to carbonization in the constraint fixture. The activated carbon or other inert friable material adsorbs pitch molecules that escape the preform during carbonization, which reduces problems with foaming. The layer of activated carbon or other friable material between the fibrous preform and the constraint fixture also provides an 15 easily crushable region that facilitates removal of the preform from the constraint fixture after carbonization.
    • 沥青渗透纤维环状预成型体通过以下方式浸渗预成型体的方法: 将沥青渗透的预成型件放置在具有顶出基板,内壁,外5壁和顶压板的约束固定件中; 选择预成型件和约束夹具的相对尺寸,使得惰性脆性材料层可以位于约束夹具的预成型件和壁之间; 将惰性脆性材料(例如,活性炭)放置在预成型件与约束夹具的顶部,底部和壁之间; 并且将所述沥青10渗透的纤维预型体在所述约束夹具中进行碳化。 活性炭或其他惰性易碎材料在碳化过程中吸附脱离预成型体的沥青分子,这减少了起泡问题。 在纤维预制件和约束夹具之间的活性炭层或其它易碎材料层还提供了易于压碎的区域,其有助于在碳化之后从约束夹具上移除预型件。