Composite material laying profile structure and forming process thereof

A technology of composite materials and molding process, which is applied to other household appliances, household appliances, household components, etc., can solve the problems of inability to obtain comprehensive mechanical properties, achieve the effect of improving the overall mechanical properties and avoiding the decline in strength

Inactive Publication Date: 2020-05-08
CRRC QINGDAO SIFANG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Existing composite material components mostly use sandwich panels or winding molding structures, such as car body, skirt board an

Method used

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  • Composite material laying profile structure and forming process thereof
  • Composite material laying profile structure and forming process thereof
  • Composite material laying profile structure and forming process thereof

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[0022] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0023] Without loss of generality, this embodiment uses the composite material ply-layer profile with the cross-sectional shape shown in the figure as the main body of description, and describes the technical solution of the composite material ply structure in detail. It should be understood that the specific shape and number of the internal cavity of the profile structure body do not constitute a substantial limit to the technical solution claimed in this application.

[0024] See also figure 1 , This figure is a schematic cross-sectional view of the composite laminate profile structure.

[0025] As shown in the figure, the profile structure is formed by a combination of multi-axial cloth and unidirectional fiber, that is, it is ...

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Abstract

The invention discloses a composite material laying profile structure and a forming process thereof. A profile structure body is provided with at least one inner cavity, and the profile structure is formed by laying a plurality of layers of composite material fiber fabrics, wherein a surface laying layer of the profile structure and an inner laying layer located in the inner cavity are formed by laying multi-axis composite material fiber fabrics, and middle layers are formed by laying one-way composite material fiber fabrics. By using the scheme, the problem that the mechanical property of a composite material pultruded profile with the complex section is reduced due to butt joint of multi-axis cloth in the vertical pultruded direction can be effectively solved, and the good comprehensivemechanical property is obtained through optimization of the laying structure.

Description

technical field [0001] The invention relates to the technical field of composite material structures, in particular to a composite material layered profile structure and a molding process. Background technique [0002] With the high-speed and rapid development of rail transit vehicles, the lightweight of car body structure has become an important research topic in the design of rail vehicles. Among them, the effective application of new composite materials is the mainstream technical direction of structural lightweight. Existing composite material components mostly use sandwich panels or winding molding structures, such as car body, skirt board and other car body components, but excellent comprehensive mechanical properties cannot be obtained based on this forming structure. [0003] In view of this, it is urgent to find another way to propose a composite material layup technology solution, which can effectively improve the mechanical properties of components on the basis of...

Claims

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Application Information

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IPC IPC(8): B29C70/30B29C70/54B29L31/30
CPCB29C70/30B29C70/54B29L2031/3005
Inventor 田爱琴肖鹏吴沛沛梁海廷孙厚礼
Owner CRRC QINGDAO SIFANG CO LTD
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