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A kind of preparation method of light-weight high-strength protective armor plate

An armor plate and high-strength technology, which is applied in the field of preparation of light-weight and high-strength protective armor plates, can solve problems such as strict equipment weight requirements, and achieve the effects of increasing payload, improving long-distance delivery capabilities, and good protection effects

Active Publication Date: 2017-12-26
AVIC BEIJING INST OF AERONAUTICAL MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, future warfare will put forward higher and higher requirements for the army's long-range projection capability and the payload capability of armed helicopters, which puts forward strict requirements on the weight of equipment, making the steel armor and titanium alloy armor previously used Can no longer meet the needs of future weapons and equipment development

Method used

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  • A kind of preparation method of light-weight high-strength protective armor plate
  • A kind of preparation method of light-weight high-strength protective armor plate
  • A kind of preparation method of light-weight high-strength protective armor plate

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preparation example Construction

[0035] A method for preparing a light-weight and high-strength protective armor plate, mixing graphene oxide, SiC and aluminum alloy powder, and then preparing a high-damping superhard bulletproof sandwich layer through thermophysical sintering, and using two or four layers of metal with different thicknesses and materials It is thermally diffused and connected with the bulletproof sandwich layer, and finally forms a three-layer or five-layer sandwich biscuit composite structure with a density lower than 3.1g / cm 3 Lightweight high-strength protective armor plate.

[0036] The preparation steps are as follows:

[0037] (1) V-type mixing equipment with a mass percentage of 0.5% to 3% graphene oxide, 35% to 55% SiC, and aluminum alloy powder with the remaining mass fraction at a speed of 10 to 30 rpm In the process, add ethanol solution at a volume ratio of 10:1, carry out wet mixing, and mix for 4 to 14 hours; then dry the mixed powder prepared by wet mixing, and put it in the ...

Embodiment 1

[0041] Example 1: 2mm thick LF21 aluminum alloy-24mm thick high damping superhard bulletproof sandwich layer-2mm thick LF21 aluminum alloy, two-layer structure, the ratio of the thickness of the high damping superhard bulletproof sandwich layer to the thickness of the unilateral sandwich metal plate is 3 : 1; the solution heat treatment time is 1h, and the aging heat treatment time is 15h.

Embodiment 2

[0042] Example 2: 2mm thick LF21 aluminum alloy-24mm thick high damping superhard bulletproof sandwich layer-2mm thick LF21 aluminum alloy, two-layer structure, the ratio of the thickness of the high damping superhard bulletproof sandwich layer to the thickness of the unilateral sandwich metal plate is 3 : 1; the solution heat treatment time is 1h, and the aging heat treatment time is 17h.

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Abstract

The invention provides a method for preparing a light-weight and high-strength protective armor plate. The material of the armor plate is a laminated sandwich biscuit-type composite structure. The bulletproof sandwich layer in the middle of the composite structure is connected with unilateral sandwich metals of different materials and thicknesses through thermal diffusion. plate. The preparation method of the armor plate comprises the following steps: 1) mixing raw materials; 2) preparing a bag for powder loading; 3) putting the sample mixed powder into the prepared bag; 4) physically sintering the powder and connecting the metal plate with heat diffusion; 5) Solution heat treatment; 6) Aging heat treatment. The invention is applicable to the bulletproof armor layer used by light armored vehicles and armed helicopters to resist the attacks of light weapons and anti-equipment weapons and its production preparation.

Description

technical field [0001] The invention relates to a bulletproof equipment plate, in particular to a preparation method of a lightweight high-strength protective armor plate. Background technique [0002] my country's light armored vehicles have always used steel bulletproof armor, and armed helicopters have used titanium alloy bulletproof armor. However, future warfare will put forward higher and higher requirements for the army's long-range projection capability and the payload capability of armed helicopters, which puts forward strict requirements on the weight of equipment, making the steel armor and titanium alloy armor previously used It can no longer meet the needs of future weapons and equipment development. Therefore need to provide a kind of low density, good bulletproof effect, anti-shock, low cost, easy mass production, be applicable to the technical scheme of the armor plate of light armored vehicle and armed helicopter resist light weapon and anti-materiel weapon...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/18C22C21/08C22C1/05C22F1/057C22F1/047
Inventor 李炯利王旭东戴圣龙王胜强燕绍九
Owner AVIC BEIJING INST OF AERONAUTICAL MATERIALS