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Ceramic gap composite armor plate comprising weak connection back plate and preparation method of ceramic gap composite armor plate

A technology of weak connection and armor plate, which is applied in the field of ceramic gap composite armor plate and its preparation, can solve the problems such as the impact of the surrounding back plate area and the bonding layer, separation or collapse, and the reduction of elastic resistance and structural integrity, so as to achieve the expansion of plasticity Deformation range, reduced stress disturbance, and excellent anti-elastic performance

Active Publication Date: 2022-01-11
NAT UNIV OF DEFENSE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] To sum up, most of the current ceramic / backplate composite armor structures adopt the structural form of a small-sized ceramic block plus a whole backplate. The area and the bonding layer are affected, and even the separation or collapse between layers occurs, resulting in the subsequent reduction of anti-ballistic performance and structural integrity

Method used

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  • Ceramic gap composite armor plate comprising weak connection back plate and preparation method of ceramic gap composite armor plate
  • Ceramic gap composite armor plate comprising weak connection back plate and preparation method of ceramic gap composite armor plate
  • Ceramic gap composite armor plate comprising weak connection back plate and preparation method of ceramic gap composite armor plate

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preparation example Construction

[0044] The present invention also provides the above-mentioned method for preparing a ceramic gap composite armor plate comprising a weakly connected back plate, comprising the following steps:

[0045] 1) Process the weakly connected backplane on the backplane;

[0046] 2) Clean the contact surface of each layer of materials and polish the metal plate;

[0047] 3) Bonding the ceramic panel and backplane: First, apply the adhesive evenly on the backplane, and cover with a layer of glass fiber cloth, and then bond the ceramic panel at the weak connection boundary of the corresponding backplane;

[0048] 4) Paste and wrap 1-2 layers of glass fiber cloth or PE cloth on the ceramic panel and back panel;

[0049] 5) Cushion pads are provided at both ends of the base plate and the back plate so that there is a gap between the base plate and the back plate, and the ceramic panel, the back plate, the buffer pad and the base plate are fixedly connected as a whole by metal frames and b...

Embodiment 1

[0053] The ceramic gap composite armor plate comprising the weakly connected back plate of this embodiment, the ceramic face plate is 110mm×110mm×14.0mmAl 2 o 3 Ceramic panel; the back plate is 5.0mm thick 2A12 aluminum alloy, using image 3 (a) The cutting method; the bottom plate is made of LC52CS armored aluminum, the size is 500mm×500mm×15.0mm; the gap between the back plate and the bottom plate is 30.0mm. The ceramic panel units are distributed in a 4×4 matrix, wrapped with glass fiber cloth soaked in adhesive, and then bonded to the aluminum alloy backplane in turn. The adhesive is epoxy resin glue with a thickness of 0.5mm-1.0mm. After the assembled ceramic panel and aluminum alloy back panel are bonded, they are wrapped with ultra-high molecular weight vinyl fiber cloth soaked in epoxy resin glue. Before the experiment, the measured areal density of the ceramic gap composite armor plate was 105.10kg / m 2 .

[0054] Anti-54 type 12.7mm piercing incendiary bomb verti...

Embodiment 2

[0059] The ceramic panel of the ceramic gap composite armor plate including the weakly connected back plate in this embodiment is 110mm×110mm×15.0mmAl 2 o 3 Ceramic panel; the back plate is 4.0mm thick 2A12 aluminum alloy, using image 3 (a) The cutting method; the bottom plate is made of LC52CS armored aluminum, the size is 500mm×500mm×15.0mm; the gap between the back plate and the bottom plate is 30.0mm. The ceramic panel units are distributed in a 3×3 matrix, wrapped with glass fiber cloth soaked in adhesive, and then bonded to the aluminum alloy backplane in turn. The adhesive is epoxy resin glue with a thickness of 0.5mm-1.0mm. After the assembled ceramic panel and aluminum alloy back panel are bonded, they are wrapped with ultra-high molecular weight vinyl fiber cloth soaked in epoxy resin glue. Before the experiment, the measured areal density of the ceramic gap composite armor plate was 104.15kg / m 2 .

[0060] Anti-54 type 12.7mm piercing incendiary bomb vertical ...

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Abstract

The invention provides a ceramic gap composite armor plate comprising a weak connection back plate and a preparation method of the ceramic gap composite armor plate. The ceramic gap composite armor plate comprises a bottom plate, the back plate, glass fabric and a ceramic panel which are connected in sequence, and the two ends of the bottom plate and the two ends of the back plate are provided with buffering pads so that a gap can be formed between the bottom plate and the back plate; and the back plate, the glass fabric and the ceramic panel are connected through a binder, the ceramic panel is formed by distributing and splicing a plurality of ceramic units in an array manner, and grooves are carved or gaps are cut in the positions, corresponding to the splicing positions of the ceramic units, of the back plate. The preparation method of the composite armor plate comprises the following steps that 1, the weak connection back plate is machined and manufactured through grooving or cutting; 2, the ceramic panel and the back plate are bound; and 3, the ceramic panel, the back plate and the bottom plate are connected through a metal frame and bolts. The composite armor plate is high in multi-shot strike resistance and excellent in structural integrity, and the technological process is simple and reasonable.

Description

technical field [0001] The invention relates to the technical field of armor, in particular to a ceramic gap composite armor plate comprising a weakly connected back plate and a preparation method thereof. Background technique [0002] Ceramic composite armor has the advantages of high protection coefficient, good anti-ballistic performance, and low surface density. Among them, the ceramic / back plate structure is simple and low-cost, and it is currently the most commonly used ceramic composite armor structure. The anti-ballistic mechanism of this composite armor structure is to use the high hardness of the ceramic material to break, abrade and decelerate the projectile. The back plate supports and restrains the ceramic block, and at the same time absorbs the remaining energy of the ceramic and projectile fragments through plastic deformation. For this structure, the formation of a complete ceramic cone is a sufficient and necessary condition for its anti-ballistic performanc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F41H5/04B23K26/364B32B17/02B32B15/14B32B15/20B32B9/00B32B9/04B32B37/12B32B38/00B32B38/04
CPCF41H5/0428F41H5/0457F41H5/0471F41H5/0478F41H5/0492B23K26/364B32B5/02B32B15/14B32B15/20B32B9/005B32B9/047B32B37/12B32B38/04B32B38/0004B32B2262/101B32B2571/02B32B2038/045
Inventor 谭清华蒋志刚邹浩陈斌
Owner NAT UNIV OF DEFENSE TECH