Composite material and preparation method thereof

A composite material and material technology, applied in the field of materials, can solve the problems of poor resistance to multiple elastics, fragility, etc., and achieve the effects of excellent ballistic performance, improved protection ability, good fixation and limiting effect.

Active Publication Date: 2019-09-24
WUXI YINBANG DEFENSE TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, ceramic materials have the disadvantage of being brittle, so the anti-multiple elastic properties are poor

Method used

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  • Composite material and preparation method thereof

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preparation example Construction

[0053] This embodiment also provides a method for preparing the above-mentioned composite material, comprising the steps of:

[0054] A. Drill flat-bottomed holes on the aluminum alloy substrate, and the flat-bottomed holes are evenly distributed on the upper surface of the aluminum alloy substrate. The thickness of the aluminum alloy substrate is 15-20mm, the diameter of the flat-bottomed holes is 13-15mm, the distance between the centers of adjacent flat-bottomed holes is 15-17mm, and the depth of the holes is 2 / 3 of the thickness of the aluminum alloy substrate.

[0055] B. Preparation of ceramic columns, rubber sheets, steel mesh and honeycomb panels. Using silicon carbide ceramics, the shape is cylindrical, the bottom is flat, and the top is provided with a spherical crown. The height of the spherical crown is 1.5mm, the diameter of the ceramic column is 13.02-15.04mm, and the height of the ceramic column is slightly higher than 1 / 2 of the depth of the flat-bottomed hole...

Embodiment 1

[0063] A preparation process of a composite board is as follows:

[0064] 1. Prepare a 15mm thick 7075 aluminum alloy substrate, and perform T6 heat treatment on the aluminum alloy substrate.

[0065] 2. Drill flat-bottomed holes on the aluminum alloy substrate, and the flat-bottomed holes are evenly distributed on the upper surface of the aluminum alloy substrate. The diameter of the flat-bottomed holes is 13mm, the distance between the centers of adjacent flat-bottomed holes is 15mm, and the hole depth is 10mm.

[0066] 3. Prepare a ceramic column, the material is silicon carbide, the diameter of the ceramic column is 13.02-13.04 mm, and the flat-bottomed hole meets the requirement of interference fit. The bottom of the ceramic column is flat, and the top is provided with a spherical cap. The height of the spherical cap is 1.5 mm, and the height of the ceramic column (excluding the spherical cap) is 6 mm.

[0067] 4. Prepare the rubber sheet, adopt butadiene rubber, its di...

Embodiment 2

[0077] A preparation process of a composite board is as follows:

[0078] 1. Prepare an 18mm thick 7075 aluminum alloy substrate, and perform T6 heat treatment on the aluminum alloy substrate.

[0079] 2. Drill flat-bottomed holes on the aluminum alloy substrate, and the flat-bottomed holes are evenly distributed on the upper surface of the aluminum alloy substrate. The diameter of the flat-bottomed holes is 15mm, the distance between the centers of adjacent flat-bottomed holes is 17mm, and the hole depth is 12mm.

[0080] 3. Prepare a ceramic column, the material is silicon carbide, the diameter of the ceramic column is 15.02-15.04 mm, and the flat-bottomed hole meets the requirement of interference fit. The bottom of the ceramic column is flat, and the top is provided with a spherical cap. The height of the spherical cap is 1.5 mm, and the height of the ceramic column (excluding the spherical cap) is 7 mm.

[0081] 4. A rubber sheet is prepared, using butadiene rubber, the...

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Abstract

The invention discloses a composite material and a preparation method thereof. The composite material comprises an aluminum alloy substrate, ceramic columns, rubber sheets, a steel wire mesh, a honeycomb plate and epoxy resin, wherein a plurality of flat bottom holes are formed in the upper surface of the aluminum alloy substrate, and the distances between the axes of every two adjacent flat bottom holes are equal; the ceramic columns are nested in grids of the steel wire mesh and are fixed in the flat bottom holes; the rubber sheets are fixed in the flat bottom holes, located below the ceramic columns and in contact with the hole bottoms of the flat bottom holes; the honeycomb plate is fixed on the lower surface of the aluminum alloy substrate; and the epoxy resin coats the outermost layer of the composite material. The composite material has the advantages of being good in elasticity resistance, light in weight, and capable of improving the comprehensive performance of armors.

Description

technical field [0001] The invention belongs to the field of material technology, and in particular relates to a novel composite material and a preparation method. Background technique [0002] The protection ability of armor is an important indicator for evaluating military vehicles. In order to improve the protection ability of military vehicles, the armor is installed on the vulnerable parts of the vehicle in the form of drape. The material of the armor needs to meet the ballistic performance requirements, including the armor's resistance to penetration, impact and collapse. [0003] Penetration resistance is the armor's ability to prevent a projectile from partially or fully penetrating the armor. It depends on the energy consumption of the projectile and shrapnel by the material. The higher the tensile strength and hardness of the material, the stronger its penetration resistance. Impact resistance is the armor's ability to absorb impact without cracking or cracking. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F41H5/04B32B15/20B32B15/06B32B15/02B32B27/38B32B3/12B32B3/18B32B15/092B32B15/04
CPCF41H5/023F41H5/0457B32B15/20B32B15/06B32B15/02B32B27/38B32B3/12B32B3/18B32B15/092B32B15/043
Inventor 严安夏承东吕金明李卫东陈嘉炜李龙徐武松葛辉
Owner WUXI YINBANG DEFENSE TECH CO LTD
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