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Multi-strand composite reinforcing core and preparation method thereof

A composite material and reinforcing core technology, used in cable/conductor manufacturing, conductors, insulated cables, etc., can solve the problems of reducing the safety factor of line operation and poor bending performance, and achieve excellent performance, good bending performance and reasonable structural design. Effect

Pending Publication Date: 2019-09-03
ZHONGFU CARBON FIBER CORE CABLE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the promotion and application of ultra-high voltage and ultra-high voltage lines, there is a greater demand for large-section conductors, and the limitations of poor bending performance of large-diameter single composite material core conductors have begun to emerge, which has brought a lot of inconvenience to construction and installation. The reinforcing core of the first wire is a separate mandrel, which reduces the safety factor of the line operation

Method used

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  • Multi-strand composite reinforcing core and preparation method thereof
  • Multi-strand composite reinforcing core and preparation method thereof
  • Multi-strand composite reinforcing core and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Such as figure 1 and figure 2 As shown, a multi-strand composite material reinforced core is formed by bonding multi-strand single-wire mandrels (1) through a matrix adhesive 2 (epoxy resin or silicone rubber resistance); the single-wire mandrel is one The number is 7 and the number of layers is 2.

[0035] The above-mentioned single-wire mandrel 1 has a diameter in the range of 0.5-6mm.

[0036] The cross-section of the above-mentioned single-wire mandrel 1 is circular.

[0037] The above-mentioned single-wire mandrel 1 is made of fibers and resin through a pultrusion process; the resin is epoxy resin; the fibers are carbon fibers and glass fibers.

Embodiment 2

[0039] Such as image 3 Shown, the preparation method of a kind of multistrand composite reinforcement core provided by the present invention, it comprises the following steps:

[0040] Pack each single-wire mandrel 1 into a disc and place it in parallel, pass through the first dipping device 1-1 equipped with matrix adhesive 2 (epoxy resin), and enter the first The preforming device 1-2 is preliminarily fixed and formed, and then fully cured by the first post-curing device 1-3, and finally wound into a coil by the first winder 1-5. According to the actual use requirements, the first winding machine 1-0 can be placed in front of the first forming device 1-2 to wind the outer layer or not to wind the fiber, so as to prepare a multi-strand composite reinforcement core.

[0041] The multi-strand composite reinforcement core prepared above has better flexibility than the single-core structure reinforcement core in the prior art, and the smaller bending radius can better cope with...

Embodiment 3

[0044] Such as Figure 4 Shown, the preparation method of a kind of multistrand composite reinforcement core provided by the present invention, it comprises the following steps:

[0045] Pack each single-wire mandrel 1 into a disc, and install it on the cage stranding machine 2-1 with back-twisting function, add a second dipping device 2-2 at the outlet end of the cage stranding machine 2-1, and each single-wire mandrel 1 The surface is covered with matrix adhesive 2 (heat-resistant silicone rubber) after passing through the second dipping device 2-2 equipped with matrix adhesive 2, and enters the second molding device under the action of the second tractor 2-5 2-3. After the single-wire mandrels 1 of each layer are twisted and formed, they are fully cured by the second post-curing device 2-4, and finally wound into a coil by the second winder 2-6. According to actual use requirements, it is optional to place the second winding machine 2-0 in front of the second forming devic...

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Abstract

The invention discloses a multi-strand composite reinforcing core and a preparation method thereof. The multi-strand composite reinforcing core is composed of seven or more single-wire rods (1). The single-core rods (1) are bonded by a base adhesive (2) and the outer layer of the entire rods is bonded by the base adhesive (2). The multi-strand composite reinforcing core is wrapped or not wrapped in a fiber (3). The multi-strand composite reinforcing core is applied to an overhead conductor, and has the advantages of good bending performance and safe line operation compared with a traditional single-core carbon fiber composite core conductor. The multi-strand composite reinforcing core has great advantages in the process of construction, is especially suitable for construction under harsh environments with large height differences and large corners.

Description

technical field [0001] The invention relates to a reinforcing core for overhead power transmission wires, in particular to a multi-strand composite material reinforcing core and a preparation method thereof. Background technique [0002] In order to solve the problems that the wires and cables used in the existing long-distance large-capacity power transmission generally use steel-cored aluminum stranded wires as conductors, which consume a lot of energy and have a small carrying capacity, resulting in frequent power outages and power failures. The composite material replaces the metal material to make the core material of the wire, and a new composite material synthetic core wire has been developed. This kind of wire has the characteristics of high temperature resistance, large capacity, low energy consumption and long life. Because this kind of wire has high advantages, it has been well used in the reconstruction of old lines and new lines. Due to the promotion and appli...

Claims

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Application Information

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IPC IPC(8): H01B7/18H01B9/00H01B13/22
CPCH01B7/1825H01B9/008H01B13/22
Inventor 任桂芳徐俊王志伟张玉庆陈中伟刘恩赐
Owner ZHONGFU CARBON FIBER CORE CABLE TECH
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