Dry process for forming arc-shaped continuous fiber composite board

A composite material board and continuous fiber technology, which is applied in the field of composite materials, can solve problems such as limiting product applications, achieve the effect of increasing the speed of dipping, reducing requirements, and eliminating the need for resin replacement processes

Inactive Publication Date: 2012-07-18
JIANGSU AOSHENG COMPOSITE MATERIALS HI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current pultrusion preparation process produces linear and

Method used

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  • Dry process for forming arc-shaped continuous fiber composite board
  • Dry process for forming arc-shaped continuous fiber composite board
  • Dry process for forming arc-shaped continuous fiber composite board

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with accompanying drawing and embodiment:

[0025] Now take the production of curved carbon fiber composite panels as an example, which is 100mm wide and 1.4mm thick.

[0026] The carbon filament of Toho UTS50 used in the fiber, the resin system is epoxy resin system AS2-02, in which:

[0027] Toho UTS50-12K:

[0028] Tensile strength: 4900 MPa,

[0029] Tensile modulus: 240GPa,

[0030] Density: 1.8 g / cm3,

[0031] Single filament diameter: 6.9μm;

[0032] Epoxy resin system AS2-02:

[0033] Tensile strength: 60-80 MPa,

[0034] Heat distortion temperature: 200-220°C,

[0035] Bending strength: 100-130 MPa,

[0036] Elongation at break: 3-5%.

[0037] The dipping equipment includes: creel 1, yarn spreading equipment 2, dipping equipment 3, post-processing oven 4, laminating equipment 5 and winding equipment 6;

[0038] The pultrusion equipment includes: a moldin...

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Abstract

The invention relates to a dry process for forming an arc-shaped continuous fiber composite board. The process comprises the following steps of: preparing a required fiber yarn flock, and unfolding the fiber yarn flock, so that the fiber yarn flock are distributed uniformly to form silk bundles of which the widths are 90 to 120 millimeters; impregnating the silk bundles into resin; after the silk bundles are completely impregnated, baking the silk bundles to obtain fiber preimpregnated cloth; performing pultrusion on the fiber preimpregnated cloth to form an arc-shaped product; and curing the arc-shaped product to obtain a finished product. According to the process, the impregnation process and the pultrusion process are separated, namely the impregnation process is independent, so that the impregnation speed is improved greatly, the requirement on the manufacturability of the resin is reduced, and the resin with high mechanical properties and slightly low manufacturability can be selected; and during pultrusion, the impregnation process is eliminated, so the problem of low long-term applicability of the resin is solved, the quality stability of the product is improved, a process for replacing the resin by workers at regular time is also eliminated, and a production site is clean and tidy.

Description

technical field [0001] The invention relates to the field of composite materials, in particular to a dry forming process for arc-shaped continuous fiber composite material boards. Background technique [0002] With the continuous development of the economy, the requirements of the medical industry for medical equipment are gradually increasing, and the requirements for medical devices are developing towards multi-function, high strength, miniaturization, light weight, and stability. Many steel structures are too bulky to ensure strength. Carbon fiber composite materials have the advantages of light weight, high strength, low thermal expansion coefficient, and corrosion resistance. They can solve the problem of lightweight and miniaturized equipment, especially the diversified development of carbon fiber products, which has attracted widespread attention. However, the current pultrusion preparation process produces linear and equal cross-section products, which limits the ap...

Claims

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Application Information

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IPC IPC(8): B29C70/52B29B15/14B29B13/02B29L7/00
Inventor 黄献中高雄张养会
Owner JIANGSU AOSHENG COMPOSITE MATERIALS HI TECH
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