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    CARBON FIBER PRECURSOR FIBER BUNDLE, PRODUCTION METHOD AND PRODUCTION DEVICE THEREFOR, AND CARBON FIBER AND PRODUCTION METHOD THEREFOR
    92.
    发明申请
    CARBON FIBER PRECURSOR FIBER BUNDLE, PRODUCTION METHOD AND PRODUCTION DEVICE THEREFOR, AND CARBON FIBER AND PRODUCTION METHOD THEREFOR 有权
    碳纤维前身纤维布，其生产方法和生产装置以及碳纤维及其生产方法

    公开(公告)号：US20120066866A1

    公开(公告)日：2012-03-22

    申请号：US13082221

    申请日：2011-04-07

    申请人： Katsuhiko IKEDA ,  Atsushi KAWAMURA

    发明人： Katsuhiko IKEDA ,  Atsushi KAWAMURA

    IPC分类号： D02G1/16 ,  D01F6/18

    CPC分类号： B65H54/76 ,  D01D5/16 ,  D01D7/00 ,  D01F6/18 ,  D01F9/14 ,  D01F9/22 ,  D02J1/08 ,  D02J1/223 ,  D02J1/228 ,  Y10T428/2918

    摘要： A production method for a carbon fiber precursor fiber bundle and a production apparatus of the carbon fiber precursor fiber bundle. A carbon fiber precursor fiber bundle that has a degree of intermingle of 1 m-1 or less between small tows, consists of substantially straight fibers without imparted crimp, a tow of which straight fibers has a moisture content of less than 10% by mass when housed in a container, and has a widthwise dividing capability to maintain a form of a single aggregate of tows when housed in a container, taken out from the container and guided into a firing step, and to divide into a plurality of small tows in the firing step by the tension generated in the firing step.

    摘要翻译： 碳纤维前体纤维束的制造方法和碳纤维前体纤维束的制造装置。 在小丝束之间具有1m-1或更小程度的碳纤维前体纤维束由基本上直的纤维组成，而不会发生卷曲，其中直线纤维的水分含量小于10质量％的丝束 容纳在容器中，并且具有宽度方向的分割能力，以便在容纳在容器中时保持单一的丝束聚集体的形式，并从所述容器中取出并被引导到焙烧步骤中，并且分成多个小束 通过在烧制步骤中产生的张力进行烧制步骤。

    Carbon fiber strand and process for producing the same
    95.
    发明授权
    Carbon fiber strand and process for producing the same 有权
    碳纤维束及其制造方法

    公开(公告)号：US08124228B2

    公开(公告)日：2012-02-28

    申请号：US12740011

    申请日：2008-08-27

    申请人： Hidekazu Yoshikawa ,  Taro Oyama ,  Hiroshi Kimura

    发明人： Hidekazu Yoshikawa ,  Taro Oyama ,  Hiroshi Kimura

    IPC分类号： D02G3/00

    CPC分类号： D01F9/225 ,  D02J1/08 ,  D02J1/222 ,  Y10T428/2918

    摘要： A carbon fiber strand which is produced by obtaining a solidified-yarn strand by spinning with a spinneret having 20,000-30,000 spinning holes, passing the strand through an interlacing nozzle having an air blowing pressure of 20-60 kPa to obtain precursor fibers, oxidizing them in heated air having a temperature of 200-280° C. to obtain oxidized fibers, subjecting these oxidized fibers to a first carbonization treatment in an inert-gas atmosphere at a temperature of 300-900° C. in which the fibers are firstly stretched in a stretch ratio of 1.03-1.06 and then secondarily stretched in a stretch ratio of 0.9-1.01, subsequently conducting a second carbonization treatment in an inert-gas atmosphere at 1,360-2,100° C., and then conducting a surface oxidization treatment in an aqueous solution of an inorganic acid salt in a quantity of electricity of 20-100 C per g of the carbon fibers. This carbon fiber strand has a strand tensile strength of 5,650 MPa or higher, strand tensile modulus of 300 GPa or higher, and strand width of 5.5 mm or larger. No strand crack is observed in an examination by a strand crack evaluation method.

    摘要翻译： 一种碳纤维股线，其通过用具有20,000-30,000个纺丝孔的喷丝头纺丝获得固化纱股线，使股线通过空气吹送压力为20-60kPa的交织喷嘴，从而获得前体纤维，氧化它们 在温度为200-280℃的加热空气中，获得氧化纤维，在惰性气体气氛中在300-900℃的温度下对这些氧化纤维进行第一次碳化处理，其中纤维首先被拉伸 在1.03-1.06的拉伸比下，然后以0.9-1.01的拉伸比进行二次拉伸，随后在惰性气体气氛中在1360-2100℃下进行第二次碳化处理，然后进行表面氧化处理 无机酸盐水溶液，每克碳纤维的电量为20-100℃。 该碳纤维股线的线股抗拉强度为5,650MPa以上，线股拉伸弹性模量为300GPa以上，股线宽度为5.5mm以上。 在线裂纹评估方法的检查中未观察到股线裂纹。