Composite bulletproof armor plate and preparation method thereof

A bulletproof armor and deck technology, which is applied to the structure of armor plates, chemical instruments and methods, lamination devices, etc., can solve the problems of introducing fiber metal laminates and porous metal sandwich panels at the same time, so as to improve the resistance to multiple strikes Ability, evenly spaced, beneficial for evenly distributed effects

Active Publication Date: 2019-06-07
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the existing design concepts, fiber metal laminates and porous metal sandwich panels are not introduced into the ceramic composite armor at the same time.

Method used

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  • Composite bulletproof armor plate and preparation method thereof
  • Composite bulletproof armor plate and preparation method thereof
  • Composite bulletproof armor plate and preparation method thereof

Examples

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preparation example Construction

[0047] A preparation method for a composite bulletproof armor plate, comprising the following steps:

[0048] S1. Take a piece of metal or fiber-reinforced composite material plate to prepare a protective cover plate;

[0049] S2, preparing the ceramic disc 2, grinding the surface of the ceramic disc 2 to make its surface roughness R a ≤3.2μm; laser cutting is used to make a round hole on the metal constraining plate 3, and the surface roughness R of the inner hole is controlled during the cutting process a ≤3.2μm; put the metal constraining plate 3 into the muffle furnace, raise the temperature at a rate of 10-50°C / min, and keep it warm for 1-3min when the temperature reaches 600-900°C; then place the room temperature in the muffle furnace The lower ceramic disc 2 is filled into the hole after the high temperature expansion of the metal constraining plate 3; the muffle furnace is closed, and after the temperature in the muffle furnace drops to room temperature, the assembly ...

Embodiment 1

[0056] (1) Prepare a TC4 titanium alloy plate with a thickness of 1mm and a side length of 120mm as a protective cover;

[0057] (2) Prepare a boron carbide ceramic plate with a thickness of 6 mm and a diameter of 100 mm, and grind the surface of the ceramic plate to make its surface roughness R a ≤3.2μm; prepare a TC4 titanium alloy constraining plate with a thickness of 6mm and a side length of 120mm, and use laser cutting to make a circular hole on the TC4 titanium alloy constraining plate. The hole size is 0.4mm smaller than the ceramic diameter, and the cutting process controls the surface roughness of the inner hole R a ≤3.2μm; put the TC4 titanium alloy constraining plate into the muffle furnace, raise the temperature at a rate of 10°C / min, and keep it warm for 1-3min when the temperature reaches 600°C; Fill the boron ceramic plate into the hole after the high temperature expansion of the TC4 titanium alloy constrained plate; close the muffle furnace, and take out the ...

Embodiment 2

[0062] (1) prepare a thickness of 1mm, an ultra-high molecular weight polyethylene fiber composite material plate with a side length of 150mm as a protective cover;

[0063] (2) Prepare 9 silicon carbide ceramic plates with a thickness of 6 mm and a diameter of 40 mm, and grind the surface of the ceramic plate to make the surface roughness R a ≤3.2μm; prepare a TC4 titanium alloy constraining plate with a thickness of 6mm and a side length of 150mm, and use laser cutting to drill 9 evenly distributed holes on the TC4 titanium alloy constraining plate. , the cutting process controls the surface roughness R of the inner hole a ≤3.2μm; put the TC4 titanium alloy constraining plate into the muffle furnace, raise the temperature at a rate of 25°C / min, and keep it warm for 1-3min when the temperature reaches 800°C; then place the 9 A silicon carbide ceramic plate is filled into the hole after high temperature expansion of the TC4 titanium alloy constrained plate; close the muffle f...

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Abstract

The invention discloses a composite bulletproof armor plate and a preparation method thereof. The composite bulletproof armor plate comprises a protective cover plate, ceramic plates, metal restraining plates, a fiber metal laminated plate and a porous metal sandwich plate; and the ceramic plates and the metal restraining plates are assembled and connected in an interference fit mode, the ceramicplates are supported through the fiber metal laminated plate and the porous metal sandwich plate, and the bullet resistance of a bulletproof armor plate is improved. The preparation technology is simple, the cost is low, compared with a traditional ceramic composite armor plate, the composite bulletproof armor plate is higher in impact resistance at a time and has the multi-time impact resistance,and the composite bulletproof armor plate has the wide application prospects in the bulletproof fields of armed helicopters, armored cars, vessels and the like.

Description

technical field [0001] The invention belongs to the technical field of ceramic composite bulletproof armor design and manufacture, and in particular relates to a composite bulletproof armor plate and a preparation method thereof. Background technique [0002] Bulletproof armor has experienced the development process from homogeneous metal to composite armor, among which ceramic composite armor is widely used due to its relatively low quality and high ballistic resistance. Traditional ceramic composite armor uses hard ceramics as the front panel to play the role of eroding projectiles, and uses metal or fiber-reinforced composite materials as the rear panel to absorb energy. When the metal is used as the back panel, the overall mass of the ceramic composite armor is too large; while when the composite material is used as the back panel, the anti-ballistic performance of ceramics cannot be fully exerted due to impedance mismatch. In addition, since ceramic itself is a brittle...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F41H5/04B32B3/08B32B5/02B32B7/12B32B9/00B32B9/04B32B15/04B32B15/14B32B15/20B32B27/06B32B27/38B32B37/06B32B37/10
Inventor 韩宾张瑞李朗卢天健张琦
Owner XI AN JIAOTONG UNIV
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