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Plate material, multilayer composite plate material with plate material, and preparation method of plate material

A multi-layer composite and plate technology, applied in the field of structural materials, can solve the problems of poor performance, impact resistance and fatigue resistance, low sound insulation and heat insulation effect, peeling of panels and core materials, etc., to improve impact resistance and fatigue resistance. , to achieve the effect of light weight and load reduction

Inactive Publication Date: 2016-10-26
CRRC QINGDAO SIFANG ROLLING STOCK RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] There are still some problems in the use of aluminum honeycomb panels: (1) The performance of bearing local concentrated loads, impact resistance and fatigue resistance are poor
(3) The special hollow structure of the aluminum honeycomb panel results in a much lower sound and heat insulation effect in the vertical direction than in the horizontal direction
(4) When the aluminum honeycomb panel is subjected to horizontal shear force, it is easy to cause peeling or serious deformation of the panel and core material

Method used

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  • Plate material, multilayer composite plate material with plate material, and preparation method of plate material
  • Plate material, multilayer composite plate material with plate material, and preparation method of plate material
  • Plate material, multilayer composite plate material with plate material, and preparation method of plate material

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specific Embodiment 1

[0040] Specific embodiment one: see figure 2 , a sheet material, the sheet material is a multi-layer composite formed by hot-pressing an aluminum alloy layer 1, a prepreg layer 2 made of a mixture of glass fiber and epoxy resin, and an aluminum alloy layer 3 from top to bottom plate.

[0041] In this embodiment, the content of the epoxy resin in the prepreg layer is 30wt%, which is beneficial to the impregnation of the glass fiber with the epoxy resin.

[0042] In this embodiment, in order to further enhance the stress bearing capacity of the plate, the glass fiber is a high-strength glass fiber with a monofilament strength of 4500 MPa.

[0043] In this embodiment, the thickness of the plate is 0.8mm. In the case of ensuring the bearing capacity of the plate, the light weight of the plate is maintained. Among them, the aluminum alloy layer is made of 2024-T3 aluminum alloy plate with a size of 500mm×500mm×0.3mm. The size of the prepreg layer is 500mm×500mm×0.2mm.

[0044] ...

specific Embodiment 2

[0053] Specific embodiment two: see figure 2 , a sheet material, the sheet material is a multi-layer composite formed by hot-pressing an aluminum alloy layer 1, a prepreg layer 2 made of a mixture of glass fiber and epoxy resin, and an aluminum alloy layer 3 from top to bottom plate.

[0054] In this embodiment, the content of the epoxy resin in the prepreg layer is 40wt%, which is beneficial to the impregnation of the glass fiber with the epoxy resin.

[0055] In this embodiment, in order to further enhance the stress bearing capacity of the plate, the glass fiber is a high-strength glass fiber with a monofilament strength of 5000 MPa.

[0056] In this embodiment, the thickness of the plate is 1.3mm. In the case of ensuring the bearing capacity of the plate, the light weight of the plate is maintained. Among them, the aluminum alloy layer is made of 2024-T3 aluminum alloy plate, and the size is 500mm×500mm×0.5mm. The size of the prepreg layer is 500mm×500mm×0.3mm.

[0057...

specific Embodiment 3

[0066] Embodiment 3: Different from Embodiment 1, in this embodiment, the content of epoxy resin in the prepreg layer is 35wt%, which is beneficial to the impregnation of glass fibers with epoxy resin. In order to further enhance the stress bearing capacity of the plate, the glass fiber adopts a high-strength glass fiber with a monofilament strength of 4800 MPa. The thickness of the board is 1.0mm, and the lightness of the board is kept while ensuring the bearing capacity of the board.

[0067] In the present embodiment, the steps of the preparation method of the plate are as follows:

[0068] (1) The surface of the aluminum alloy is anodized with complex acid to form a uniform oxide film on the surface of the aluminum alloy, and the surface of the aluminum alloy is coated with butadiene primer within 24 hours;

[0069] (2) drying the prepreg and the aluminum alloy treated in step (1) to remove the solvent;

[0070] (3) Lay the plates in the order of aluminum alloy, prepreg,...

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Abstract

The invention relates to a plate material, a multilayer composite plate material with the plate material, and a preparation method of the plate material. The plate material is a multilayer composite plate formed through hot-pressing forming of an aluminum alloy layer, a prepreg layer made by mixing fiberglass and epoxy resin, and an aluminum alloy layer from bottom to top; the multilayer composite plate material comprises a surface plate, a core layer and a bottom plate, and the core layer is connected between the surface plate and the bottom plate; both the surface plate and the bottom plate employ the plate material; the core layer is made with fiberglass reinforced melamine foam material. The plate material is of multilayer structure and has an interfacial layer, thereby enabling gradually reduced load, increased acoustic impedance ratio, improved impact resistance and fatigue resistance and improved acoustic insulation.

Description

technical field [0001] The invention belongs to the technical field of structural materials, and relates to a light-weight structure board, in particular to a board, a multilayer composite board containing the board and a preparation method thereof. Background technique [0002] With the development of rail transit technology and the advancement of science and technology, new polymer materials, especially high-performance composite materials, are increasingly used in modern Rail transit field. At present, high-performance composite materials have become a hot spot in material research in the field of rail transit. Therefore, it is of great significance to develop lightweight and high-strength advanced composite materials to replace existing materials and realize the lightweight of vehicles. [0003] As an important lightweight material, honeycomb sandwich panel has the advantages of high specific strength, light weight, high rigidity, good stability, sound insulation and he...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B15/14B32B15/092B32B17/04B32B27/04B32B37/10B32B38/08B32B3/12
CPCB32B15/14B32B3/12B32B15/092B32B17/04B32B37/1018B32B38/08B32B2250/03B32B2250/40B32B2260/021B32B2260/046B32B2262/101B32B2307/102B32B2307/552B32B2307/56B32B2605/08B32B2605/10
Inventor 王黎明郭济伟程文露郑晖陈照峰
Owner CRRC QINGDAO SIFANG ROLLING STOCK RES INST
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