Preparation method of continuous fiber-toughened silicon carbide ceramic bullet-proof plate

A technology of continuous fiber and toughened silicon carbide, which is applied in the field of preparation of continuous fiber toughened silicon carbide ceramic bulletproof board, can solve the problem that the bulletproof performance is not as good as that of the whole board, limits the customization ability of the whole board, and has poor anti-multiple bullet resistance, etc. The shaping method is simple and flexible, which is conducive to personalized customization and improves the bulletproof performance

Active Publication Date: 2018-07-06
AVIC BASIC TECH RES INST
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

Due to the brittleness of the ceramic itself, the toughness and external impact load resistance of pure ceramics are poor, resulting in poor multiple elastic resistance
[0004] Existing ceramic panels can be divided into two types: spliced ​​panels and monolithic panels. The spliced ​​panels have the advantages of large preparation flexibility, but the manufacturing process is complicated, the production efficiency is low, and the bulletproof performance is not as good as that of the monolithic panels; The physiological curve of the human body can provide a more comfortable wearing experience, but the mold of the whole board is expensive and the manufacturing cycle is long, so there are only a limited number of standard sizes to choose from, which limits the ability to customize the whole board

Method used

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  • Preparation method of continuous fiber-toughened silicon carbide ceramic bullet-proof plate
  • Preparation method of continuous fiber-toughened silicon carbide ceramic bullet-proof plate

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preparation example Construction

[0026] The preparation method of continuous fiber toughened silicon carbide ceramic bulletproof plate is characterized in that it comprises the following steps:

[0027] 1. Design and preparation of fiber prefabricated body 1: use continuous fiber (such as carbon fiber, silicon carbide fiber, etc.) as raw material, weave and prepare continuous fiber prefabricated body 1 according to the structure, shape and size of the bulletproof plate;

[0028] 2. Design and manufacture of shaping tooling: design and prepare graphite shaping tooling according to the structure and shape of the bulletproof plate, and the inner cavity structure of the shaping tooling is consistent with the structure of the bulletproof plate;

[0029] 3. Mold closing and finalizing: put the fiber prefabricated body 1 into the graphite shaping tool for fixing, and fix the shaping tool for shaping after mold closing;

[0030] 4. Heat treatment of fiber prefabricated body 1: install the above-mentioned shaped fiber...

Embodiment

[0038] The preparation method of the continuous fiber toughened silicon carbide ceramic bulletproof plate, the operation steps are as follows:

[0039] 1. Design and preparation of fiber prefabricated body 1: Toray T300 carbon fiber is used as raw material to weave continuous fiber prefabricated body 1 according to the structure, shape and size of the bulletproof plate, and the structure of fiber prefabricated body 1 is a 2-dimensional suture structure;

[0040] 2. Design and manufacture of shaping tooling: design and prepare graphite shaping tooling according to the structure and shape of the bulletproof plate, and the inner cavity structure of the shaping tooling is consistent with the structure of the bulletproof plate;

[0041] 3. Mold closing and finalizing: put the fiber prefabricated body 1 into the graphite shaping tool for fixing, and fix the shaping tool for shaping after mold closing. The material of the shaping tool is high-purity graphite;

[0042] 4. Heat treatme...

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Abstract

The invention relates to a preparation method of a bullet-proof plate, particularly to a preparation method of a continuous fiber-toughened silicon carbide ceramic bullet-proof plate. The preparationmethod has the beneficial effects that the continuous fiber-toughened silicon carbide ceramic provided by the invention inherits high hardness and abrasion resistance advantages of a silicon carbide ceramic material, exerts the continuous fiber reinforcing and toughening principle, and overcomes the inherent defects, of pure silicon carbide ceramic, that inherent toughness is poor and external shock load resistance performance is poor, so that the continuous fiber-toughened silicon carbide ceramic has the characteristics like low density, high specific strength, high specific modulus, high hardness and shock resistance, and bullet-proof performance, particularly multi-bullet-proof performance, of the bullet-proof plate can be effectively improved; a continuous fiber-toughened silicon carbide ceramic material is prepared through a polymer high-pressure impregnation pyrolysis technology, the technology is simple, and preparation cost is low; and a setting method provided by the inventionis simple and flexible, and size customization of the bullet-proof plate is facilitated.

Description

technical field [0001] The invention relates to a preparation method of a bulletproof board, in particular to a preparation method of a continuous fiber toughened silicon carbide ceramic bulletproof board. Background technique [0002] In modern warfare, bulletproof is a necessary measure to improve the defense of combatants; in the field of security, bulletproof is an important way to provide personal security protection. Bulletproof materials are the focus of research in the field of bulletproof. With the development of bulletproof technology, the bulletproof plate has changed from the original steel plate to the current composite bulletproof plate with ceramic and back plate structure, and the bulletproof material is gradually developing towards toughness, light weight and comfort. The principle of the existing composite bullet-proof plate with ceramic plate and back plate structure is to rely on high-hardness ceramics as the bullet-facing surface to break and deform the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F41H1/00C04B35/80C04B35/622C04B35/565B32B37/12B32B37/24B32B38/08B32B38/00
CPCB32B37/12B32B37/24B32B38/00B32B38/0036B32B38/08B32B2037/243B32B2038/0076C04B35/565C04B35/622C04B35/806C04B2235/5244C04B2235/5248F41H1/00
Inventor 谢巍杰邱海鹏陈明伟刘善华
Owner AVIC BASIC TECH RES INST
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