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Carbon fiber-resin composite core for overhead cable

A resin composite material and composite material core technology, applied in the direction of insulating cables, cables, circuits, etc., can solve the problems of low transverse strength, complicated manufacturing process, etc., achieve the effect of reducing weight per unit length and improving flattening resistance

Active Publication Date: 2012-05-23
嘉兴宝盈通复合材料有限公司
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  • Summary
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Problems solved by technology

[0006] The present invention proposes an improved carbon fiber reinforced resin-based composite material cable core to overcome the existing problems of complex manufacturing process and low transverse strength of the cable core reinforced by the second type of fiber composite

Method used

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  • Carbon fiber-resin composite core for overhead cable

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Embodiment

[0036] Raw material specifications:

[0037] Carbon fiber: Torayca T700SC-12K, tensile strength 4900MPa, tensile modulus 235GPa, strain 2.1%, monofilament diameter 7μ;

[0038] Epoxy resin system: viscosity 1200-2000cP at 25℃, density 1.2g / cm at 25℃ 3 ;

[0039] Glass fiber mat: MFS-50;

[0040] Fiberglass stitched felt: GF / 960-50-35.

[0041] figure 1 It is a schematic diagram of the production equipment for producing the composite core of the present invention. like figure 1 As shown, the carbon fibers are unwound from the creel 1 with the tension adjustment device at a constant tension, pass through the yarn guide plate 2 in sequence, and pass through the preheating box 3 in parallel, where the moisture is removed and softened by heating Sizing agent on carbon fiber surface to improve resin infiltration effect. Then pass through the yarn guide plate 2' and enter the glue tank 4. After sufficient infiltration, it enters the preform mold 5 . At this stage, the excess...

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Abstract

The invention relates to a carbon fiber-resin composite core for overhead cables, which consists of a carbon fiber-resin composite core layer and a protective layer wound on the core layer, wherein the protective layer is a fibrofelt and / or fiber fabric-reinforced resin material layer. Compared with the prior art, the carbon fiber-resin composite core for the overhead cables has the advantages ofreducing the unit length weight of a product and improving flattening resistance.

Description

technical field [0001] The present invention relates to a fiber-reinforced composite material, and more particularly to a core material of an overhead cable. Background technique [0002] In the past ten years, with the development of overhead cable technology, the original steel core has been replaced by a non-metallic fiber composite core with higher strength. The composite core reinforced cable (ACCC) significantly reduces the cable weight and Degree of sagging. Known non-metallic reinforcing fibers for overhead cables include carbon fiber, Kevlar, basalt, glass fiber, aramid, liquid crystal fiber, high-performance polyethylene, and the like. Among them, carbon fibers have been increasingly used in overhead cable cores due to their high tensile strength and low thermal expansion coefficient. [0003] Chinese patent ZL03809284.0 discloses a composite material core for cables, the composite material core includes an inner core and an outer core. The inner core includes a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B7/18H01B17/60
Inventor 张凤翻顾跃定尤泂马亚峰吴炎张政
Owner 嘉兴宝盈通复合材料有限公司
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