Self-rolling shielding sleeve and preparation method thereof

Abstract

The invention relates to a self-rolling type shielding sleeve, which is made by crimping and shaping a sheet-shaped braided fabric; the braided fabric has two free edges extending along the longitudinal axis, and is self-rolled into two free edges without external force The curled state overlapping each other, the two free edges can be converted to an open state under the action of an external force, and return to the curled state after the external force is removed; woven fabrics are made using warp and weft yarns; the warp is a sheath containing organic fibers and metal wires Core yarn and / or wire ply; weft yarn consists of core yarn and thermoplastic organic fibers. The invention also relates to a method for the preparation of said sleeve. The casing of the present invention has the following advantages: light weight; good weaving performance; not easy to break; has excellent puncture resistance, light aging resistance, high temperature resistance, scratch resistance, mildew and waterproof performance; especially suitable for high temperature, radiation Effectively protect cables, optical cables and other tubular objects under harsh working conditions such as high strength and electromagnetic signal interference.

Description

technical field [0001] The invention relates to the technical field of new materials, in particular to a self-rolling shielding sleeve and a preparation method thereof. Background technique [0002] Braided protective sleeves are widely used in the protection of tubular objects, such as wire harnesses and cables in the fields of automobiles, ships, and aerospace. At present, there are generally two kinds of such protective sleeves: (1) a closed sleeve that adopts fiber braiding, and (2) an open sleeve that adopts fiber braiding. The first type of bushing is inconvenient to disassemble and install when the protected object breaks down or needs to be overhauled. The second casing avoids this shortcoming. Chinese patent ZL201220377807.3 discloses a self-adhesive sleeve, which uses unwoven multifilament to replace the velcro surface of the existing sleeving, and wraps the object by forming a bond between the multifilament and the velcro hook surface , there is no need to set ...

AI Technical Summary

Problems solved by technology

Chinese patent ZL201220377807.3 discloses a self-adhesive sleeve, which uses unwoven multifilament to replace the velcro surface of the existing sleeving, and wraps the object by forming a bond between the multifilament and the velcro hook surface , there is no need to set the buckle surface on the main body of the sleeve, which reduces the weaving process; Chinese patent ZL201120438767.4 discloses a self-rolling sleeve, that is, it is self-curling along the radial direction of the sleeve to partially overlap each other, and can be It can be opened under the action of external force, just to protect the cable and facilitate the construction, but it has no anti-stab and shielding performance

At present, the number of wiring harnesses inside machines in various fields is increasing day by day, and there is an urgent need for protective sleeves with shielding functions to prevent mutual signal interference. Chinese patent ZL201310584056. Self-rolling sleeve, the sleeve has a shielding effect, but the weight of the sleeve is heavy after the plastic fiber wire and metal wire are woven together, and the breaking strength of the metal wire is low, so it is easy to break during the weaving process; After a complete set of pipe products, it is easy to be pierced by hard objects, which will cause damage to the protected object

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