Forming method of high-rigidity conical-structure carbon fiber composite tube

A composite tube and tapered structure technology, which is applied in the field of drones, can solve the problems of inability to manufacture carbon fiber composite tubes that meet the tapered structure, and achieve the effect of not easy to buckle, smooth surface quality, and high surface quality

Pending Publication Date: 2021-03-12
NANJING DONGJU CARBON FIBER COMPOSITE RES INST CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The invention provides a preparation technology of a tapered carbon fiber composite material pipe, aiming to solve the problem that the existing conventional composite material preparation technology cannot manufacture a large-sized, tapered structure carbon fiber composite material pipe that meets the design requirements

Method used

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  • Forming method of high-rigidity conical-structure carbon fiber composite tube
  • Forming method of high-rigidity conical-structure carbon fiber composite tube
  • Forming method of high-rigidity conical-structure carbon fiber composite tube

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Embodiment

[0056] The present invention adopts high modulus carbon fiber, such as MM55J, etc., as reinforcement, and matches high toughness and high temperature resistant epoxy resin to make unidirectional tape prepreg. Extract the outer surface of the tapered carbon fiber composite pipe in Catia, use Fibersim to design the layup, design the shape and size of each layer of prepreg, and use a cutting machine to cut it to obtain the tapered carbon fiber composite material. The unidirectional tape prepreg web 20 is used for pipe laying.

[0057] Such as figure 1 Shown, a kind of high rigidity taper structure carbon fiber composite material tube forming method, described forming method comprises the following steps:

[0058] Step 1: Clean the upper mold body 1, the lower mold body 4, and the auxiliary paving tooling 12 with a cleaning agent until they are clean; paste the adhesive release cloth on the surface of the auxiliary paving tooling 12 respectively, and use a knife to move along th...

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Abstract

The invention provides a forming method of a high-rigidity conical-structure carbon fiber composite tube. The problem that a large-size conical-structure carbon fiber composite tube is large in manufacturing difficulty is mainly solved. According to the forming method disclosed by the invention, the conical carbon fiber composite tube is prepared through the operations of cleaning parts, mountinga paving auxiliary tool, paving unidirectional prepreg in cavities of an upper die body and a lower die body, pre-compacting and paving auxiliary materials, mounting sealing strips, fastening and pumping to negative pressure, detecting the vacuum degree, curing and the like. The forming method disclosed by the invention is particularly suitable for manufacturing the conical carbon fiber compositetube with the length larger than 6 m, and the internal quality and the surface quality of the products are high.

Description

technical field [0001] The invention relates to a method for manufacturing a carbon fiber composite material tube, which belongs to the field of unmanned aerial vehicles, and in particular relates to a method for preparing an outer wing and a tail tube of a solar unmanned aerial vehicle. Background technique [0002] Carbon fiber is an ideal material for structural design due to its excellent properties of low density, high specific strength and high specific modulus; figure 2 As shown, the carbon fiber composite material tube is a typical structure in the product structure design, and is often used in the wing spar, tail support tube, empennage main beam, rudder surface main beam and other important structural areas of UAVs. Carbon fiber is a special material whose tensile properties are far greater than compressive properties. In the manufacturing process of carbon fiber composite products, it is necessary to avoid problems such as compression, accumulation, and wrinkles o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/34B29L23/00
CPCB29C70/342B29C70/345B29L2023/22
Inventor 王明军李颖华秦友山
Owner NANJING DONGJU CARBON FIBER COMPOSITE RES INST CO LTD
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