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Manufacturing technology of carbon fiber composite equal-diameter tubular structure

A tubular structure and composite material technology, which is applied to tubular objects, other household appliances, household appliances, etc., can solve the problems of inaccurate outer diameter size and inability to demold the equal-diameter tubular structure, so as to solve the problem of inaccurate dimensional accuracy and guarantee Flatness, the effect of reducing manufacturing cost

Active Publication Date: 2016-12-07
XIAN AISHENG TECH GRP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In order to avoid the deficiencies of the prior art, the present invention proposes a manufacturing process of a carbon fiber composite material equal-diameter tubular structure, which solves the process problems such as the inability to demould the equal-diameter tubular structure and inaccurate outer diameter dimensions.

Method used

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  • Manufacturing technology of carbon fiber composite equal-diameter tubular structure
  • Manufacturing technology of carbon fiber composite equal-diameter tubular structure
  • Manufacturing technology of carbon fiber composite equal-diameter tubular structure

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Embodiment Construction

[0033] Now in conjunction with embodiment, accompanying drawing, the present invention will be further described:

[0034] The first step is the design and manufacture of the external female mold. Product outer diameter R=35mm, length L=850mm, thickness δ=0.975mm. CATIA 3D software is used to design the mating female mold of the carbon fiber tubular structure, and the tooling surface is consistent with the product's external dimensions, such as figure 2 As shown, this mating female mold is made up of two parts, is upper female mold 1 and lower female mold 2 respectively. The mold adopts a steel frame structure, and the frame structure is mainly to meet the uniformity of heat flow of the mold in the oven. There is sufficient margin 15 on both sides of the mold to ensure the flanging space of the prepreg material. The mold surface is formed by CNC machining. The end baffle 10, the end baffle 12, the positioning groove 11, and the guide locator 14 are designed on the mold. , ...

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Abstract

The invention relates to a manufacturing technology of a carbon fiber composite equal-diameter tubular structure. A combined female die is adopted to control the outer diameter size of a product, a combined core bar of a metal bar and silicone rubber is prepared as a core die, prepreg is continuously laid on the core die, after die assembly, and through expansion and pressure application of silicone rubber, a product with the stable performance is obtained. Compared with CN 103802329 A and the traditional technology, the problems that the size precision of a product exterior face is inaccurate, and mold releasing is difficult are solved, meanwhile, flatness of the inner surface and the outer surface can be ensured, the assembling error can be reduced, curing in a hot pressure tank is not needed, the manufacturing cost is reduced, and the developing requirement of an unmanned aerial vehicle tail supporting pipe of a certain type can be met.

Description

technical field [0001] The invention belongs to the technical field of advanced composite material molding technology in the aviation industry, and relates to a manufacturing technology of a carbon fiber composite material equal-diameter tubular structure. Background technique [0002] Advanced composite materials not only have high specific strength, high specific modulus, anti-fatigue, anti-corrosion and other characteristics, but also have strong designability. Reasonable design and application can greatly reduce the weight of the structure, improve the overall performance of the body, task load, endurance time, etc., so it has gained more and more applications in aviation, aerospace, automobiles, ships, medical treatment, sports and other fields. B787 composite materials account for up to 50% of the weight of the aircraft structure, and the A400M large military transport aircraft uses more than 35% composite materials, while UAVs can almost achieve an all-composite body ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/34B29C70/54B29C33/38B29L23/00
CPCB29C33/3842B29C70/342B29C70/54B29L2023/00
Inventor 段国晨张明赵景丽林宇赵伟超
Owner XIAN AISHENG TECH GRP
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