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A kind of boron carbide bullet-proof board with multi-bomb and multi-curved surface and preparation method thereof

A bulletproof insert, boron carbide technology, applied in chemical instruments and methods, protective equipment, protective equipment and other directions, can solve the problems of large dent deformation, poor anti-polyelasticity, poor product stability, etc. The bullet has more kinetic energy, strong anti-multi-elasticity, and good hardness consistency.

Active Publication Date: 2022-06-28
浙江吉成新材股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention aims at problems such as poor anti-multi-elastic performance, large surface density, poor product stability, and large amount of deformation at the moment of bullet impact in the bullet-proof inserts in the prior art, and provides a multi-elastic multi-curved surface boron carbide bulletproof insert. Plate and method for its preparation

Method used

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  • A kind of boron carbide bullet-proof board with multi-bomb and multi-curved surface and preparation method thereof
  • A kind of boron carbide bullet-proof board with multi-bomb and multi-curved surface and preparation method thereof
  • A kind of boron carbide bullet-proof board with multi-bomb and multi-curved surface and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0063] An anti-multi-bomb multi-curved boron carbide bulletproof insert, the anti-multi-bounce and multi-curved boron carbide bulletproof insert comprises a crack arrest layer, a ceramic layer, a transition layer, a PE layer and a reducing concave layer;

[0064] The crack arresting layer is aramid fabric with an areal density of 195-200g / m 2 ;

[0065] The ceramic layer is a pressureless sintered boron carbide ceramic plate, which is prepared by powder nanotechnology and formula optimization, and has a thickness of 6mm;

[0066] The transition layer is a titanium plate with a thickness of 0.5mm;

[0067] The PE layer is a combination of PEUD cloth and film tape, and the areal density is: 9.0-10.5kg / m 2 ;

[0068] The sag-reducing layer is selected from nanoporous PPA, with a thickness of 3-5mm;

[0069] The preparation method of the described PE layer: at normal temperature, the film tape (area density 5-10kg / m 2 ) and PEUD cloth (area density 2-5kg / m 2 ) were put into...

Embodiment 2

[0091] An anti-multi-bomb multi-curved boron carbide bulletproof insert, the anti-multi-bounce and multi-curved boron carbide bulletproof insert comprises a crack arrest layer, a ceramic layer, a transition layer, a PE layer and a reducing concave layer;

[0092] The crack arresting layer is aramid fabric with an areal density of 195-200g / m 2 ;

[0093] The described ceramic layer is a pressureless sintered boron carbide ceramic plate, which is prepared by using powder nanotechnology and formula optimization, with a thickness of 6 mm; the pressureless sintered boron carbide ceramic is made of the following raw materials ( Brand BC18): 100 parts of 0.8um boron carbide, sintering aids (5 parts of carbon nanotubes, 3 parts of 0.3um yttrium trioxide; 5 parts of 0.5um titanium carbide), binder (5 parts of polyvinyl alcohol, hydroxypropyl 5 parts of methyl cellulose), dispersant (0.2 part of KH560, 0.3 part of PEG4000), plasticizer (0.05 part of DEP);

[0094] The preparation met...

Embodiment 3

[0104] An anti-multi-bullet multi-curved boron carbide bulletproof insert, the anti-multi-bounce and multi-curved boron carbide bulletproof insert includes a crack arrest layer, a ceramic layer, a transition layer, a PE layer and a dent reduction layer arranged in sequence from the ballistic panel to the back plate Floor;

[0105] The crack arresting layer is aramid fabric with an areal density of 210-230g / m 2 ;

[0106] The described ceramic layer is the whole plate of pressureless sintered boron carbide ceramics, which is prepared by powder nanotechnology and formula optimization, and the thickness is 10mm; the described pressureless sintered boron carbide ceramics are made of the following raw materials ( Grade BC20): 100 parts of 1.0um boron carbide, sintering aids (5 parts of silicon carbide whiskers, 10 parts of 0.5um silicon carbide; 3 parts of 0.3um yttrium trioxide, 1 part of 1.0um titanium carbide, 0.5um titanium boride) 1 part), binder (2 parts of phenolic resin, ...

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Abstract

The invention discloses a multi-bounce and multi-curved surface boron carbide bulletproof board and a preparation method thereof. The ceramic bulletproof board includes an anti-crack layer, a ceramic layer, a transition layer, and a PE layer arranged sequentially from the bulletproof face plate to the back plate. And reduce the depression layer; at the same time meet the following technical indicators: ① low surface density (26‑37.5Kg / m 2 ); ② Good product stability - uniform density in each area of ​​the ceramic plate; ③ Anti-multiple bullets and multiple bullets - Anti-M80 bomb, Type 53 7.62 mm armor-piercing incendiary bomb, Type 56 7.62 mm armor-piercing incendiary bomb, Type 95 5.8 mm There are many kinds of ordinary bombs, and it can resist more than 3 rounds of bombs at the same time.

Description

technical field [0001] The invention belongs to the technical field of the preparation of bulletproof inserts, and in particular relates to a multi-bomb-resistant and multi-curved boron carbide bulletproof insert and a preparation method thereof. Background technique [0002] Since the birth of body armor, with the development of materials, it has gone through the development process of metal armor protection plates, non-metal composite materials to composite systems such as composite materials and metal armor plates, ceramic shields, etc. Lighter weight and stronger protection ability are the key to evaluating bullet resistance. The most important and direct indicator of clothing. Ceramic composite structure is a bulletproof protection solution with excellent performance. Among many ceramic materials, boron carbide ceramics have a relatively low density (2.52g / cm2). 3 ), second only to diamond in hardness and excellent corrosion resistance, meeting the requirements of bull...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F41H1/02F41H5/04B28B3/00B28B1/00C04B35/563C04B35/622C04B35/64B32B27/02B32B27/34B32B9/00B32B9/04B32B15/085B32B27/08B32B27/12B32B15/20B32B33/00B32B37/06B32B37/10
CPCF41H1/02F41H5/0421F41H5/0428B28B3/003B28B1/004C04B35/563C04B35/622C04B35/64B32B9/005B32B7/12B32B9/047B32B9/045B32B9/041B32B5/02B32B15/085B32B27/32B32B27/34B32B27/08B32B27/12B32B33/00B32B37/06B32B37/10B32B15/20C04B2235/5445C04B2235/3225C04B2235/3826C04B2235/3843C04B2235/3813C04B2235/5288C04B2235/5276C04B2235/668C04B2235/6581C04B2235/658B32B2571/02B32B2262/0269B32B2262/106B32B2307/51B32B2307/558
Inventor 尹邦进陈冲尹志勇邓磊
Owner 浙江吉成新材股份有限公司
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