Integral-molding manufacturing method of carbon-fiber composite made oil tanks for small and middle sized unmanned aerial vehicle

A technology of mechanical carbon fiber and composite materials, which is applied in the field of integral molding and manufacturing of carbon fiber composite fuel tanks for small and medium-sized UAVs. It can solve the problems of low comprehensive mechanical properties and environmental adaptability, heavy weight of composite fuel tanks, and long production cycles. Improve the scope of application, reduce production costs, and use low stability

Inactive Publication Date: 2018-11-06
XIAN AISHENG TECH GRP +1
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  • Abstract
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Problems solved by technology

[0008] The technical problem solved by the present invention is: in view of the limitations of the prior art, the present invention provides a method for integrally forming a carbon fiber composite fuel tank for small and medium-sized unmanned aerial vehicles. Problems such as heavy weight of the fuel tank, low comprehensive mechanical properties and environmental adaptability, small scope of application, long production cycle, etc., improve the performance and scope of application of the overall fuel tank with complex structure composite materials in the research and development stage

Method used

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  • Integral-molding manufacturing method of carbon-fiber composite made oil tanks for small and middle sized unmanned aerial vehicle
  • Integral-molding manufacturing method of carbon-fiber composite made oil tanks for small and middle sized unmanned aerial vehicle
  • Integral-molding manufacturing method of carbon-fiber composite made oil tanks for small and middle sized unmanned aerial vehicle

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Embodiment Construction

[0038] see Figure 1-Figure 6 , a small and medium-sized unmanned aerial vehicle carbon fiber composite fuel tank integral molding manufacturing method, the process includes the following steps:

[0039] Step 1, making a carbon fiber structure fuel tank core mold 1: The core mold material is a closed-cell rigid foam material with good heat resistance, a thermal expansion coefficient close to that of carbon fiber composite materials, and good compression creep resistance.

[0040] According to the physical performance parameters in the foam material specification, the foam specifications used and the foam thermal expansion, compression creep, and processing allowances under medium-temperature curing vacuum-assisted molding are determined.

[0041] Using three-dimensional modeling, the foam mandrel is processed according to the digital model, and the foam mandrel 1 is obtained; it is packaged and protected in time.

[0042] Step 2, surface treatment of the mandrel: unsealing th...

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Abstract

The invention relates to an integral-molding manufacturing method of carbon-fiber composite made oil tanks for small and middle sized unmanned aerial vehicle, solving the problems about application restrictions such as large thickness, heavy weight and poor environmental adaptability of the oil tanks molded by the prior art, improving application range of the integral-molded composite oil tanks while effectively reducing weight of the oil tanks, simplifying the molding process of the composite integral oil tanks, solving the problems of complicated process, high difficulty and unstable qualityof the oil tanks having complicated structures, effectively reducing production cost and shortening production cycle, and realizing low-cost rapid molding of the composite integral oil tanks on the premise of guaranteeing dimension and service stability. Residual foam after cleaning can be recycled and can be processed into powder to be mixed with epoxy resin solution to obtain a mixture, and themixture can serve as a potting compound of an inter-layer structure of the unmanned aerial vehicle.

Description

technical field [0001] The invention belongs to the technical field of UAV composite material forming technology, and relates to a manufacturing method for the integral molding of a carbon fiber composite fuel tank of a small and medium-sized UAV. Background technique [0002] Compared with traditional composite materials, carbon fiber composite materials can take into account the properties of carbon fiber and matrix to become engineering structural materials with better comprehensive performance and functional materials with special properties, especially for light weight, high specific strength and specific modulus, The tailorability of material properties, multiple selectivity of molding process, good fatigue resistance and good corrosion resistance are widely used in aerospace and other fields. The carbon fiber composite fuel tank can not only realize the design / manufacturing integration through integral molding, but also realize the lightweight of the body structure an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/34B29L22/00
CPCB29C70/342B29L2031/7172
Inventor 赵伟超孙奇田少岗童话
Owner XIAN AISHENG TECH GRP
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