폴리아크릴로니트릴 섬유의 제조 방법 및 탄소 섬유의 제조 방법
    10.
    发明公开
    폴리아크릴로니트릴 섬유의 제조 방법 및 탄소 섬유의 제조 방법 有权
    폴리아크릴로니트릴섬유의제조방법및탄소섬유의제조방폴

    公开(公告)号:KR1020130069886A

    公开(公告)日:2013-06-26

    申请号:KR1020137015323

    申请日:2011-11-28

    IPC分类号: D01F6/18 D02J1/22 D01F9/22

    摘要: There is provided a method for manufacturing a polyacrylonitrile fiber which includes, in this order, a spinning process; a first drawing process; a drying process; and a second drawing process which includes any of the following hot drawing processes (a) to (c): (a) a process of performing drawing in the air, where a yarn temperature from a yarn separation point on a hot roll to a first yarn contact point on a subsequent roll is 130°C or higher; (b) a process of performing drawing, where a distance from the yarn separation point on the hot roll to the first yarn contact point on the subsequent roll is 20 cm or less; and (c) a process of performing the second drawing in a hot plate drawing zone where a hot plate is placed between two rolls, one of which is a preheating roll arranged forward of the hot plate drawing zone, while the hot plate is positioned so that a start point of contact between the hot plate and a yarn is at a distance of 30 cm or less from the yarn separation point on the preheating roll, and the surface speed of the preheating roll is set to 100 m/min or more.

    摘要翻译: 提供了一种制造聚丙烯腈纤维的方法,该方法依次包括纺丝工艺; 第一绘制过程; 干燥过程; (a)〜(c)中的任一种的第二拉伸工序:(a)在空气中进行拉伸的工序,在该工序中,从热辊的纱线分离点到第一 后续辊上的纱线接触点为130℃或更高; (b)从热辊上的纱线分离点到后续辊上的第一纱线接触点的距离为20cm或更小的进行拉伸的过程; 和(c)在热板拉伸区域进行第二拉伸的过程,其中在两个辊子之间放置热板,其中一个是布置在热板拉拔区域前面的预热辊,而热板定位如此 使热板与纱线的接触起点与预热辊的纱线分离点之间的距离为30cm以下,预热辊的表面速度为100m /分钟以上。