Low-density and high-performance composite sandwich structure and preparation method thereof

A composite material, sandwich structure technology, applied in chemical instruments and methods, synthetic resin layered products, lamination and other directions, can solve the problems of small thermal expansion coefficient of aramid honeycomb core material, large variation of profile accuracy, poor thermal conductivity and so on , to achieve strong designability, stable performance and dimensional accuracy, and ensure the effect of surface accuracy
CN105459474AInactive Publication Date: 2016-04-06SHANGHAI COMPOSITES SCI & TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI COMPOSITES SCI & TECH CO LTD
Publication Date
2016-04-06
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a low-density and high-performance composite sandwich structure and a preparation method thereof. The sandwich structure comprises a core sandwich structure, an upper skin layer arranged on the upper bottom surface of the core sandwich structure and a lower skin layer arranged on the lower bottom surface of the core sandwich structure, wherein the core sandwich structure is formed by arranging a plurality of rod parts in parallel; each rod part is made of a fiber-reinforced resin-based composite. The rod parts made of the fiber-reinforced resin-based composites are spliced in a bonding or physical fixing manner to form the core sandwich structure, so that the core material has designability in mechanical property and hydrothermal property and has formability of complicated molded surfaces, and the high-precision, high-stability and complicated honeycomb sandwich structure is manufactured.
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Description

Technical field

[0001] The invention relates to a low-density and high-performance composite material sandwich structure and a preparation method thereof, in particular to a preparation method of a composite material sandwich structure with low density, ultra-light weight, strength, rigidity and functionality that can be designed. Background technique

[0002] With the development of deep space exploration technology, the operating environment temperature range of spacecraft is getting wider and wider, and the requirements for weight reduction of platform structure are getting higher and higher. Among them, the stability and reliability of the surface accuracy of composite parts in space environment and the structure Functional integration is an important direction of development.

[0003] The composite material honeycomb sandwich material uses a metal plate or a composite material plate as the skin, and now mainly uses metal aluminum honeycomb and aramid honeycomb as the core stru...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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