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Manufacturing method of lattice core, mold and composite cylinder with lattice core

A composite material layer and core technology, which is applied in the field of composite material cylinders, can solve the problems of impenetrable space, inconvenient pre-embedding, heat conduction, ventilation and heat transfer, etc., and achieve the effect of perfect performance and easy pre-embedding

Inactive Publication Date: 2011-12-14
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of the existing lattice cores that the cylinder wall is closed, the space cannot be penetrated, and it is not convenient to realize the functions of pre-embedding, heat conduction, ventilation and heat transfer, and to provide a manufacturing method of lattice cores, Mold and composite cylinder with lattice core

Method used

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  • Manufacturing method of lattice core, mold and composite cylinder with lattice core
  • Manufacturing method of lattice core, mold and composite cylinder with lattice core
  • Manufacturing method of lattice core, mold and composite cylinder with lattice core

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specific Embodiment approach 1

[0030] Specific implementation mode one: combine Figure 1-Figure 12 Describe this embodiment, the concrete method of the preparation dot matrix core of this embodiment is as follows:

[0031] Step 1. Lay multiple sheet-shaped unidirectional prepregs superimposedly, and cut the stacked sheet-shaped unidirectional prepregs into strips with scissors or engraving machine according to the width of the square groove of the female mold in the mold, Obtain a unidirectional prepreg, the length of the unidirectional prepreg is 35-40mm longer than the length of the square groove of the first module, on the inner wall of the silicone rubber cylinder, evenly surround the prepreg, place in the steel mold and fixed at the bottom;

[0032] Step 2. Clean the outer surface of all the female molds in the mold and each mold body in the male mold, then apply the sealing agent and the release agent on the outer surface in turn, discharge the mold into a flat plate and bend it into a circle cylin...

specific Embodiment approach 2

[0038] Specific implementation mode two: combination Figure 1-Figure 12 To describe this embodiment, the curing temperature described in Step 5 of this embodiment is 120° C., the curing pressure is 0.5 MPa, and the curing time is 1.5 hours. With such setting, the curing effect is good. Other compositions and connections are the same as in the first embodiment.

specific Embodiment approach 3

[0039] Specific implementation mode three: combination Figure 1-Figure 7 Describe this embodiment, the mold of this embodiment is made up of female mold, male mold and splint 5, described female mold is made up of N first mold bodies 1, and described male mold is made up of N-1 second mold bodies 2. The third mold body 3 and the fourth mold body 4 are composed, the cross-sectional shape of the first mold body 1 is arc-shaped, the cross-sectional shape of the second mold body 2 is arc-shaped, and the third mold body 3 The cross-sectional shape of the fourth mold body 4 is fan-shaped; the first mold body 1 is composed of a first concave module 1-1, a second concave module 1-2 and a first intermediate module 1 -3 components, the cross-sectional shape of the first middle module 1-3 is isosceles trapezoid, the first concave module 1-1 and the second concave module 1-2 are symmetrically placed on the two sides of the first middle module 1-3 On the slope, on the surface of the firs...

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Abstract

A method for manufacturing a lattice core, a mold and a composite material cylinder with a lattice core, relating to a method for manufacturing a lattice core, a manufacturing mold and a cylinder of composite material with a lattice core. The invention solves the problems that the cylinder wall of the existing lattice core is closed, the space cannot be penetrated, and the functions of pre-embedding, heat conduction, ventilation and heat transfer are not convenient to realize. The method for preparing lattice cores is as follows: 1. Obtain multiple unidirectional prepregs; 2. Clean the mold; 3. Lay unidirectional prepregs in square grooves; 4. Lay fiber prepreg layers; 5. Lay the square silicone rubber on the surface of the prepreg layer; 6. Hot press forming; 7. Demoulding; 8. Obtain the dot matrix core. The prepared lattice core is the mold used for the wave-shaped lattice core or the pyramid-shaped lattice core. The lattice core of the composite cylinder is disposed between the outer composite laminate and the inner composite laminate. The invention is especially applicable to the field of aerospace.

Description

technical field [0001] The invention relates to a manufacturing method of a lattice core, a manufacturing mold and a composite material cylinder with the lattice core. Background technique [0002] The high specific strength, high specific rigidity and superior multifunctional properties of the lattice sandwich structure have attracted widespread attention in the fields of materials science and mechanics. As a new type of sandwich structure, it has great advantages in impact resistance, active deformation, active cooling, etc. great application potential. With the development of manufacturing technology in the industry, the lattice sandwich structure made of metal materials and carbon fiber composite materials has further expanded its application fields. From a structural point of view, the lattice sandwich structure has mechanical properties comparable to traditional honeycomb structures, and requires Superior to metal foam. However, the cylinder wall of the existing latt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/34B29C70/54B32B1/08B32B3/10
Inventor 马力熊健吴林志杨金水彭亮
Owner HARBIN INST OF TECH
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