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Compound fibre draw-winding rod and preparation method

A composite fiber and rod-wound technology, which is used in underwater operation equipment, ships, special-purpose ships, etc., can solve the problems of low lateral strength, splitting and twisting, and lack of corrosion resistance, so as to improve bending performance and improve corrosion resistance. performance, the effect of improving lateral strength

Inactive Publication Date: 2004-01-07
北京玻钢院复合材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is required to have comprehensive properties such as seawater erosion resistance, extremely high tensile elastic modulus, good bending performance and bending recovery ability, and large fracture strain. Ordinary materials cannot fully meet its comprehensive performance requirements.
[0003] At present, the dragging and positioning commonly used in domestic underwater acoustic countermeasure systems use rods made of a single material. The modulus of the metal material is high, but it is not corrosion-resistant; the tensile strength of traditional tie rod products is high, but the lateral direction Low strength, easy to split and twist during long-term bending and retracting, which cannot meet its use requirements

Method used

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  • Compound fibre draw-winding rod and preparation method
  • Compound fibre draw-winding rod and preparation method

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Embodiment 1

[0023] As shown in Figure 1: the draw-wound rod manufactured by the present invention is composed of a core rod 1, a winding layer 2, and an anti-corrosion layer 3. The core rod 1 is a solid rod, which is formed by mixed pultrusion of carbon fiber and resin; the selected tensile modulus is 290GPa , carbon fiber with an elongation of 1.5%; the winding layer 2 is a high-strength glass fiber with a tensile modulus of 80GPa and an elongation of 3%; the anti-corrosion layer 3 is made of alkali-free glass fiber; the resin selected is a glue-like vinyl resin, which The tensile modulus was 3.2 and the elongation was 6%.

[0024] The method for preparing a core rod comprises the steps of:

[0025] The first step: mold design: design mold according to different requirements of sample specifications

[0026] For a core rod with a diameter of 8mm, the diameter of the inner cavity of the core rod is set to 4.94mm; the number of carbon fibers required for the inner core is 37 strands, and ...

Embodiment 2

[0032] As shown in Figure 1: the draw-wound rod manufactured by the present invention is composed of a core rod 1, a winding layer 2, and an anti-corrosion layer 3. The core rod 1 is a solid rod, which is formed by mixed pultrusion of carbon fiber and resin; the selected tensile modulus is 290GPa , carbon fiber with an elongation of 1.5%; the winding layer 2 is a high-strength glass fiber with a tensile modulus of 80GPa and an elongation of 3%; the anti-corrosion layer 3 is made of alkali-free glass fiber; the resin selected is a glue-like vinyl resin, which The tensile modulus was 3.2 and the elongation was 6%.

[0033] The method for preparing a core rod comprises the steps of:

[0034] The first step: mold design: design mold according to different requirements of sample specifications

[0035] The inner cavity of the inner core with a diameter of 10mm is set to 6.17mm; the number of carbon fibers required for the inner core is 61 strands, and the number of glass fibers re...

Embodiment 3

[0041] diameter

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Abstract

The present invention discloses a composite fibre guy turnstile, and is formed from core rod and covering layer, and its core rod is a solid rod, and its covering layer is formed from wrapped layer and anticorrosive layer, and its wrapped layer is made by at least mixing two plies of fibre and resin and winding them round the core rod, and its anticorrosive layer is made up by making several plies of fibre impregnated with resin be radially attached on the wrapped layer. The tensile modulus and bending modules are over above, 100 GPa, it can be extensively used for making glass fibre reinforced plastic pipeline, supporting rod for greenhouse and antenna equipment.

Description

technical field [0001] The invention relates to a draw-wrap rod for towing and positioning a hydrophone on a ship and a preparation method thereof, belonging to the field of composite materials. technical background [0002] The towing rod is a common towing tool used for towing and positioning, and is mainly used to tow and position the hydrophone on the ship. When the hydrophone positioning and towing system is working, the medium in which it is located is complex, the stress situation is changeable, and it needs to be frequently retracted and coiled for storage. Therefore, it is required to have comprehensive properties such as seawater erosion resistance, extremely high tensile elastic modulus, good bending performance and bending recovery ability, and large fracture strain. Ordinary materials cannot fully meet its comprehensive performance requirements. [0003] At present, the drag and positioning commonly used in domestic underwater acoustic countermeasure systems us...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/02B63G8/39C03C25/00D07B1/02
Inventor 方敏邓海岸葛正海杨德旭
Owner 北京玻钢院复合材料有限公司
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