Design and manufacture method of a honeycomb sandwich structure ventilation channel

A technology of honeycomb sandwich and manufacturing method, which is applied in the field of design and manufacture of honeycomb sandwich structure ventilation channels, and can solve problems such as structural damage, debonding of honeycomb sandwich core and FRP skin, etc.

Active Publication Date: 2018-01-23
HUBEI SANJIANG AEROSPACE GRP HONGYANG ELECTROMECHANICAL
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a method for designing and manufacturing a honeycomb sandwich structure ventilating channel, which solves or partially solves the technical problems in the prior art that the small molecular gas enters the aluminum honeycomb sandwich, causing debonding of the honeycomb sandwich and the FRP skin, and structural damage.

Method used

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  • Design and manufacture method of a honeycomb sandwich structure ventilation channel

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Embodiment Construction

[0018] see figure 1 A method for designing and manufacturing a honeycomb sandwich structure ventilation channel provided by an embodiment of the present invention includes the following steps:

[0019] Step 1, prepare the honeycomb sandwich structure mold.

[0020] Step 2: Lay the cut prepreg cloth on the honeycomb sandwich structure mold, first lay the bottom layer, then lay the frame, and pre-embed the silicone rubber rope in the frame laying attachment.

[0021] Step 3, performing vacuum pre-curing on the honeycomb sandwich structure mold, and pulling out the silicone rubber rope from the frame.

[0022] Step 4, laying the adhesive film and the aluminum honeycomb on the honeycomb sandwich structure mould.

[0023] Step 5, laying the outer skin on the aluminum honeycomb and the frame, and pre-pressing the convex and concave molds.

[0024] Step 6, drilling holes on the outer skin, cleaning the edge gaps of the honeycomb sandwich structure mold, and vacuuming the honeycomb...

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Abstract

The invention discloses a method for designing and manufacturing a honeycomb sandwich structure ventilating channel, which belongs to the technical field of composite materials. The method for designing and manufacturing the air passage of the honeycomb sandwich structure includes the following steps: preparing a honeycomb sandwich structure mould; laying the cut prepreg cloth on the honeycomb sandwich structure mould, pre-embedding silicone rubber ropes in the frame laying; The mold is vacuumed and pre-cured, and the silicone rubber rope is pulled out from the frame; the adhesive film and aluminum honeycomb are laid on the honeycomb sandwich structure mold; the outer skin is laid on the aluminum honeycomb and the frame; holes are drilled on the outer skin and Clean the edge gap of the honeycomb sandwich structure mold, vacuum the honeycomb sandwich structure mold; heat and pressurize the honeycomb sandwich structure mold to vacuumize and solidify, and extract the gas in the honeycomb sandwich structure mold. The method for designing and manufacturing the air-permeable channel of the honeycomb sandwich structure of the present invention finally smoothly extracts the gas in the honeycomb to achieve structural stability.

Description

technical field [0001] The invention relates to the technical field of composite materials, in particular to a method for designing and manufacturing a honeycomb sandwich structure ventilation channel Background technique [0002] In aerospace, its light specific gravity, high strength, and high stiffness composite material structure is used in aerospace vehicles to play the role of heat protection, load bearing and weight reduction. The original phenolic ablation resin-based structural parts mainly play the role of heat protection and weight reduction, but have no bearing effect. [0003] The honeycomb sandwich structure is a new type of phenolic ablation resin-based structure. It is made by laying a large-area aluminum honeycomb sandwich in the production of the original phenolic resin-based structural parts and curing together to form an organic whole to achieve heat resistance and weight reduction. and bearing role. [0004] The phenolic resin releases a large amount o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C70/34
CPCB29C70/342
Inventor 万勇波沈亚东李俊菊罗海涛
Owner HUBEI SANJIANG AEROSPACE GRP HONGYANG ELECTROMECHANICAL
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