Manufacturing method for novel lightweight high-strength protective armor plate

An armor plate and high-strength technology, which is applied in the field of preparation of new lightweight and high-strength protective armor plates, can solve problems such as strict equipment weight requirements, and achieve the effect of increasing payload, improving long-distance delivery capability, and low density

Inactive Publication Date: 2016-02-24
AVIC BEIJING INST OF AERONAUTICAL MATERIALS
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  • Summary
  • Abstract
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  • Claims
  • Application Information

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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 forwar

Method used

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  • Manufacturing method for novel lightweight high-strength protective armor plate
  • Manufacturing method for novel lightweight high-strength protective armor plate
  • Manufacturing method for novel lightweight high-strength protective armor plate

Examples

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preparation example Construction

[0031] A new type of light-weight and high-strength protective armor plate preparation method, 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 different thicknesses and materials The metal is thermally diffused and connected to 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 and high-strength protective armor plate.

[0032] The preparation steps are as follows:

[0033] (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 i...

Embodiment 1

[0036] 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; thermal diffusion conditions: the pressure is 90MPa, and the time is 2 hours.

Embodiment 2

[0037] Embodiment 2: Using 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; thermal diffusion conditions: the pressure is 300MPa, and the time is 30 minutes.

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Abstract

The invention provides a manufacturing method for a novel lightweight high-strength protective armor plate. The armor plate material is of a laminated sandwich biscuit type composite structure. A bulletproof sandwich layer in the middle of the composite structure is externally connected with a unilateral sandwich metal plate in a thermal diffusion manner, and the unilateral sandwich metal plate is different from the bulletproof sandwich layer in material and thickness. The manufacturing method of the armor plate includes the steps that (1) raw materials are mixed; (2) a bag for containing powder is made; (3) the made bag is filled with the sample mixed powder; and (4) physical sintering of the powder and thermal diffusion connection with the metal plate are conducted. The manufacturing method is suitable for bulletproof armor layers used by light armored cars and armed helicopters to resist attack from small weapons and anti-material weapons, and is also suitable for production of the bulletproof armor layers.

Description

technical field [0001] The invention relates to a bulletproof equipment plate, in particular to a preparation method of a novel 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 ...

Claims

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Application Information

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IPC IPC(8): C22C1/04C22C21/06
CPCC22C1/0416C22C21/06
Inventor 李炯利王旭东戴圣龙王胜强张显峰
Owner AVIC BEIJING INST OF AERONAUTICAL MATERIALS
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