Fibre reinforced composites
    43.
    发明授权
    Fibre reinforced composites 失效
    纤维增强复合材料

    公开(公告)号:US5503928A

    公开(公告)日:1996-04-02

    申请号:US916848

    申请日:1992-08-18

    摘要: In the manufacture of reinforced composites having reinforcing filaments within a matrix, a filament consisting of a staple yarn spun from discontinuous fibers with low twist is subject to controlled stretching to vary the weight per unit length of the yarn along the length of the yarn. Apparatus for performing the stretching operation comprises two roll pairs spaced apart along the yard feed path and rotated at controlled relative speeds to obtain the desired elongation of the yarn. The yarn may be used directly in producing a composite, e.g., by applying resin to the yarn and winding it onto a mandrel or former, or it may be used to prepare a perform, prepeg tape, woven fabric or the like to be used in the production of a shaped composite. The invention makes it possible to vary the characteristics, e.g., thickness and/or strength, over a composite in a way not previously possible.

    摘要翻译: PCT No.PCT / GB91 / 00263 Sec。 371日期:1992年8月18日 102(e)日期1992年8月18日PCT 1991年2月20日PCT PCT。 出版物WO91 / 13195 1991年9月5日。在制造在基体内具有增强细丝的增强复合材料中,由由不连续纤维纺丝的短纤维组成的细丝经受可控拉伸以改变纱线沿着每单位长度的重量 纱线的长度。 用于执行拉伸操作的装置包括沿着码头进给路径间隔开的两个辊对,并且以受控的相对速度旋转以获得纱线的期望伸长率。 该纱线可以直接用于生产复合材料,例如通过将树脂施加到纱线上并将其卷绕到心轴或成形器上,或者可以用于制备待使用的性能,预制带,机织织物等 生产成型复合材料。 本发明可以以先前不可能的方式改变复合材料的特性,例如厚度和/或强度。

    Multi-ply spun yarn and method for producing the same
    44.
    发明授权
    Multi-ply spun yarn and method for producing the same 失效
    多发丝纱及其制造方法

    公开(公告)号:US5107671A

    公开(公告)日:1992-04-28

    申请号:US620381

    申请日:1990-11-30

    IPC分类号: D01H1/115 D02G3/28

    CPC分类号: D02G3/281 D01H1/115

    摘要: A multi-ply spun yarn having a self-converging property and a method for producing it. In the method wherein fiber is drafted first and introduced into an air jetting twisting device, and then yarns spun out by the twisting device are joined together by a guide member and taken up onto a take-up device, the twisted yarns are joined together after separated by a separating guide.

    摘要翻译: 具有自会聚性的多层纺纱及其制造方法。 在首先将纤维牵伸并引入空气喷射加捻装置的方法中,然后由扭转装置纺出的纱线通过引导部件接合在一起并卷绕到卷取装置上,将加捻纱线在 由分离导向器隔开。

    Process and an arrangement for producing two yarn components respectively
    45.
    发明授权
    Process and an arrangement for producing two yarn components respectively 失效
    分别制造两个纱线部件的工艺和布置

    公开(公告)号:US4831816A

    公开(公告)日:1989-05-23

    申请号:US202547

    申请日:1988-06-06

    申请人: Fritz Stahlecker

    发明人: Fritz Stahlecker

    IPC分类号: D02G3/28

    CPC分类号: D02G3/281

    摘要: In the case of a process and an arrangement of producing spools containing two yarn components respectively and serving as feed spools for a twisting process, it is provided that the two yarn components that are each prestrengthened by means of false-twisting nozzles, are guided between a drafting frame and the spool on paths of different lengths, so that nonuniformities of the two yarn components that may have occurred during the drawing are not disposed directly next to one another.

    摘要翻译: 在分别制造含有两个纱线部件的卷轴并用作加捻过程的进给卷轴的过程和布置的情况下,通过假捻喷嘴预加强的两个纱线部件被设置在两个纱线部件之间, 牵伸框架和线轴在不同长度的路径上,使得在绘图期间可能发生的两个纱线部件的不均匀性不直接彼此设置。

    Method and apparatus for controlling twist in yarn
    46.
    发明授权
    Method and apparatus for controlling twist in yarn 失效
    用于控制纱线捻度的方法和装置

    公开(公告)号:US4173861A

    公开(公告)日:1979-11-13

    申请号:US850690

    申请日:1977-11-11

    IPC分类号: D02G3/28 D02G1/16

    CPC分类号: D02G3/281

    摘要: Singles yarns are formed from a synthetic material, twisted in one direction, heat-set, cooled and false-twisted in the opposite direction. Two similarly treated strands are joined at their nodes and plied, resulting in an improved ply-twist singles twist ratio. The first twisting and heat-setting can be done concurrently using jet twisting with steam, and apparatus for accomplishing this is disclosed.

    摘要翻译: 单纱由合成材料形成,在一个方向上扭曲,热定形,冷却和相反方向假捻。 两个相似的处理过的丝束在它们的节点处接合并且合并,从而改善了单层扭转单扭曲率。 第一次扭转和热定形可以用蒸汽喷射扭转同时进行,并且实现这一点的装置被公开。

    Anthony w
    49.
    发明授权

    公开(公告)号:US75063A

    公开(公告)日:1868-03-03

    申请号:US75063D

    CPC分类号: D02G3/281

    John mccune
    50.
    发明授权

    公开(公告)号:US73910A

    公开(公告)日:1868-01-28

    申请号:US73910D

    CPC分类号: D02G3/281