VARI (Vacuum Assistant Resin Infused) integral moulding clear dimension composite material ribbed structure manufacturing method

A technology of integral molding and composite materials, which is applied in the field of VARI integral molding and net-size composite material reinforced structure manufacturing, can solve the problems of high manufacturing cost and poor connection strength, reduce assembly workload, improve rigidity and strength, and process low cost effect

Inactive Publication Date: 2017-05-17
HENGSHEN
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Problems solved by technology

[0003] In order to solve the problems of poor connection strength and high manufacturing cost caused by the existing autoclave process for making reinforced wall panels, the present invention proposes a manufacturing method for integrally forming a net-sized composite material reinforced structure by VARI process

Method used

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  • VARI (Vacuum Assistant Resin Infused) integral moulding clear dimension composite material ribbed structure manufacturing method
  • VARI (Vacuum Assistant Resin Infused) integral moulding clear dimension composite material ribbed structure manufacturing method
  • VARI (Vacuum Assistant Resin Infused) integral moulding clear dimension composite material ribbed structure manufacturing method

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Embodiment Construction

[0025] attached figure 1 It is a schematic cross-sectional view of a composite material reinforced structure. It can be seen from the figure that the net size composite material reinforced structure is composed of a skin 3, an internal reinforcing rib "C" type rib 1 and an I-beam 2. The existing forming process of the composite material reinforced structure is to use the autoclave process to separately form the skin and internal reinforcement, then process the skin and reinforcement to the required size, and then use riveting or screw connection to connect the skin and the internal reinforcement. The tendons are connected together. This connection method is a point connection, and the connection strength is not good. In addition, the process cost of prepreg storage and curing in the autoclave process is very high.

[0026] The manufacturing method of the VARI process of the present invention to integrally form a net-sized composite material reinforced structure comprises the...

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Abstract

The invention discloses a VARI (Vacuum Assistant Resin Infused) integral moulding clear dimension composite material ribbed structure manufacturing method. The manufacturing method comprises the following steps: manufacturing an envelope prefabricated body by adopting an envelope moulding steel mould; manufacturing C-shaped ribs and I-beam prefabricated bodies by adopting wood substituted prefabricated body moulds; then, paving a drainage net and de-moulding cloth at the lower part of the manufactured envelope prefabricated body; assembling the manufactured C-shaped ribs and the manufactured I-beam prefabricated bodies onto the envelope moulding steel mould with the envelope together with a core mould; and finally, performing resin importing and resin curing on an overall composite material ribbed structure in a curing oven. The composite material ribbed structure manufactured by the manufacturing method is of a clear size integral structure; subsequent processing is not required; the assembling workload is reduced; point connection of screw connection and rivet connection is avoided; the rigidity and the strength of the overall structure are improved; in addition, the processes of prepreg storing and autoclave curing are eliminated by adopting a VARI process; the cost is lower compared with the conventional autoclave process.

Description

technical field [0001] The invention relates to a method for manufacturing a net-size reinforced structure formed by VARI technology, in particular to a method for manufacturing a net-sized composite material reinforced structure integrally formed by VARI technology. Background technique [0002] The existing composite material reinforced structure molding process is to use the autoclave process to form the skin and internal reinforcement respectively, then process the skin and reinforcement to the required size, and then use riveting or screw connection to connect the skin and the internal reinforcement. The tendons are connected together. This connection method is a point connection, and the connection strength is not good. In addition, the process cost of prepreg storage and curing in the autoclave process is very high. Contents of the invention [0003] In order to solve the problems of poor connection strength and high manufacturing cost caused by the existing autoc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/34B29B11/06
CPCB29B11/06B29C70/342
Inventor 卜祥威舒巍陈永乐陈志平
Owner HENGSHEN
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