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A kind of composite material and preparation method

A composite material and material technology, applied in the field of materials, can solve the problems of fragility, poor elastic resistance to multiple shots, etc., and achieve the effects of excellent ballistic performance, good energy absorption and cushioning, and high elasticity

Active Publication Date: 2022-03-29
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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  • A kind of composite material and preparation method

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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. The composite material includes aluminum alloy substrate, ceramic column, rubber sheet, steel wire mesh, honeycomb panel, and epoxy resin; the upper surface of the aluminum alloy substrate is provided with a plurality of flat-bottomed holes, and the distance between the axes of adjacent flat-bottomed holes is equal; the ceramic column Nested in the grid of steel wire mesh, fixed in the flat-bottomed hole; the rubber sheet is fixed in the flat-bottomed hole, located below the ceramic column, and in contact with the bottom of the flat-bottomed hole; the honeycomb plate is fixed on the lower surface of the aluminum alloy substrate; the ring Oxygen resin is coated on the outermost layer of the composite material. The composite material of the invention has good anti-ballistic performance, light weight, and improves the comprehensive performance of the armor.

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 Patents(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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