发明名称 |
CARBON FIBER PRECURSOR FIBER BUNDLE, PRODUCTION METHOD AND PRODUCTION DEVICE THEREFOR, AND CARBON FIBER AND PRODUCTION METHOD THEREFOR |
摘要 |
<p>There are provided a carbon fiber precursor fiber bundle which permits easy bundling of a plurality of small tows into one bundle, is provided with a dividing capability to divide into the original small tows spontaneously at the time of firing, and is suitable for obtaining a carbon fiber that is excellent in productivity and quality, and a production method and a production apparatus of the carbon fiber precursor fiber bundle, and an excellent carbon fiber and a production method thereof. 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. A production method thereof. A production apparatus of a carbon fiber precursor fiber bundle, comprising an intermingling device that comprises a yarn channel having a flat rectangular section through which a plurality of small tows can pass in a manner adjacent to each other and a plurality of air jet holes disposed with predetermined intervals along the long side direction of the flat rectangle and having the openings thereof in the yarn channel. A carbon fiber using the precursor fiber bundle and a production method thereof.</p> |
申请公布号 |
EP1719829(A1) |
申请公布日期 |
2006.11.08 |
申请号 |
EP20050710090 |
申请日期 |
2005.02.10 |
申请人 |
MITSUBISHI RAYON CO., LTD. |
发明人 |
IKEDA, KATSUHIKO;SHIMOZAWA, NOBUYUKI;KUNISAWA, TAKAHIKO;KAWAMURA, ATSUSHI |
分类号 |
D01F6/18;D01F9/14;D01F9/22 |
主分类号 |
D01F6/18 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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