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Multi-wall body composite material component and RTM preparation method thereof

A technology for composite material components and reinforced composite materials, which is applied in the field of multi-wall composite material structural parts and its preparation, and can solve the problems of one-time integral molding, mold design, fiber layup, and demoulding of multi-wall composite material components. and other issues, to achieve good product designability, improved rigidity and service efficiency, and good reliability

Inactive Publication Date: 2012-10-10
NAT UNIV OF DEFENSE TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, there are still many technical difficulties in the existing RTM process for the molding of multi-wall composite components. There are great technical difficulties in mold design, fiber layup, and demoulding, so it is impossible to realize this type of multi-wall One-time integral molding of body composite components

Method used

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  • Multi-wall body composite material component and RTM preparation method thereof
  • Multi-wall body composite material component and RTM preparation method thereof
  • Multi-wall body composite material component and RTM preparation method thereof

Examples

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Embodiment 1

[0046] such as figure 1 The multi-wall composite material component 11 of the present invention is shown, the multi-wall composite material component 11 is mainly used as a traction beam of a certain type of train, and the multi-wall composite material component 11 is mainly composed of inner wall components and outer wall components, The inner wall components and the outer wall components are all multi-layer fiber cloth reinforced composite materials, and the matrix material of the multi-layer fiber cloth reinforced composite material is an unsaturated polyester resin system or an epoxy resin system (in this example, 9001 unsaturated polyester resin is used. ), the fiber cloth is carbon fiber cloth or glass fiber cloth (this embodiment selects alkali-free glass fiber 04 plain weave cloth), and the volume fraction of the fiber cloth is 45%; There are no connecting pieces between the outer walls 13 and between the inner wall components and the outer wall components, between the...

Embodiment 2

[0065] a kind of like figure 1 The multi-wall composite material member 11 of the present invention shown, the multi-wall composite material member 11 is mainly used as a certain type of train roof, and the multi-wall composite material member 11 is mainly composed of an inner wall assembly and an outer wall assembly, Both the interior wall components and the exterior wall components are multi-layer fiber cloth reinforced composite materials, and the matrix material of multi-layer fiber cloth reinforced composite materials is unsaturated polyester resin system or epoxy resin system (LT-5089A epoxy resin is used in this example ), the fiber cloth is carbon fiber cloth or glass fiber cloth (this embodiment selects non-alkali glass fiber 04 twill cloth), and the volume fraction of fiber cloth is 45%; No connectors are provided between the exterior wall bodies 13 and between the interior wall assemblies and the exterior wall assemblies. There is no cementing surface between the e...

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Abstract

The invention discloses a multi-wall body composite material component and a RTM (Resin Transfer Molding) preparation method thereof, wherein the multi-wall body composite material component mainly comprises an interior wall component and an exterior wall component; neither connecting pieces nor cementation surfaces are arranged between the interior wall bodies of the interior wall component, between the exterior wall bodies of the exterior wall component and between the interior wall component and the exterior wall component; and the multi-wall body composite material component is mainly obtained after the interior wall component and the exterior wall component are co-cured and formed integrally. The RTM preparation method comprises the steps as follows: firstly, a die used for forming is prepared, the die comprises a female die and a male die, the female die is arranged on the periphery of a die cavity, and the male die is arranged in a gap among a cavity body of the die cavity; prepared holes for assembling are formed in the female die and the male die; a glue injection hole and a glue outlet hole which are used for forming are pre-formed in the female die; then reinforcing material is laid on the male die, and the female die and the male die are assembled through a fastening piece; and finally, the multi-wall body composite material component is obtained after vacuum glue injection, co-curing forming and demoulding trimming are carried out. The multi-wall body composite material component and the RTM preparation method thereof have the advantages of good building integrity, good reliability and good mechanical property, and can facilitate the realization of a light structural weight of equipment.

Description

technical field [0001] The invention relates to a composite material component and a preparation method thereof, in particular to a multi-wall composite material structural component and a preparation method thereof. Background technique [0002] The lightweight structure of the equipment can improve the maneuverability of the equipment, reduce the energy consumption required for power, increase the payload capacity, and improve its service efficiency. There are three main technical ways to reduce the weight of the equipment structure: one is to optimize the structural design to meet the requirements of service conditions with the smallest size and the most reasonable shape to achieve the purpose of weight reduction; The purpose of weight reduction; the third is to use the overall preparation process to prepare structural parts to reduce the number of parts and connectors, and at the same time improve the integrity and reliability of the structural parts to achieve the purpo...

Claims

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Application Information

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IPC IPC(8): B29C70/06B29C70/48C08L67/06C08L63/00C08K7/06C08K7/14
Inventor 肖加余蒋彩尹昌平江大志曾竟成邢素丽
Owner NAT UNIV OF DEFENSE TECH
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