CN114963874A - Composite bulletproof flashboard and preparation method thereof - Google Patents

Composite bulletproof flashboard and preparation method thereof Download PDF

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Publication number
CN114963874A
CN114963874A CN202210652659.XA CN202210652659A CN114963874A CN 114963874 A CN114963874 A CN 114963874A CN 202210652659 A CN202210652659 A CN 202210652659A CN 114963874 A CN114963874 A CN 114963874A
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Prior art keywords
fiber
layer
fiber layer
carbide ceramic
silicon carbide
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CN202210652659.XA
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CN114963874B (en
Inventor
刘彬
沈峰
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Tianjin Kemke New Material Technology Co ltd
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Tianjin Kemke New Material Technology Co ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H1/00—Personal protection gear
    • F41H1/02—Armoured or projectile- or missile-resistant garments; Composite protection fabrics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/14—Layered products comprising a layer of metal next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/18—Layered products comprising a layer of metal comprising iron or steel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
    • B32B3/04—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by at least one layer folded at the edge, e.g. over another layer ; characterised by at least one layer enveloping or enclosing a material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/08—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer the fibres or filaments of a layer being of different substances, e.g. conjugate fibres, mixture of different fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/005—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising one layer of ceramic material, e.g. porcelain, ceramic tile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B9/041—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B9/047—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material made of fibres or filaments
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H5/00—Armour; Armour plates
    • F41H5/02—Plate construction
    • F41H5/04—Plate construction composed of more than one layer
    • F41H5/0414—Layered armour containing ceramic material
    • F41H5/0421—Ceramic layers in combination with metal layers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H5/00—Armour; Armour plates
    • F41H5/02—Plate construction
    • F41H5/04—Plate construction composed of more than one layer
    • F41H5/0414—Layered armour containing ceramic material
    • F41H5/0428—Ceramic layers in combination with additional layers made of fibres, fabrics or plastics
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H5/00—Armour; Armour plates
    • F41H5/02—Plate construction
    • F41H5/04—Plate construction composed of more than one layer
    • F41H5/0442—Layered armour containing metal
    • F41H5/0457—Metal layers in combination with additional layers made of fibres, fabrics or plastics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/02—Coating on the layer surface on fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/26—Polymeric coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0253—Polyolefin fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0261—Polyamide fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0261—Polyamide fibres
    • B32B2262/0269—Aromatic polyamide fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/106—Carbon fibres, e.g. graphite fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/14—Mixture of at least two fibres made of different materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/558—Impact strength, toughness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2571/00—Protective equipment
    • B32B2571/02—Protective equipment defensive, e.g. armour plates, anti-ballistic clothing

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  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)

Abstract

The invention relates to the technical field of bulletproof plugboards, in particular to a composite bulletproof plugboard and a preparation method thereof. The composite bulletproof flashboard and the preparation method thereof can bring better wearing experience and reduce physical consumption while improving the protection performance of the bulletproof flashboard, and avoid the phenomenon that the bulletproof flashboard has larger weight and loses maneuverability and flexibility while keeping the high protection function of the bulletproof flashboard.

Description

Composite bulletproof flashboard and preparation method thereof
Technical Field
The invention relates to the technical field of bulletproof plugboards, in particular to a composite bulletproof plugboard and a preparation method thereof.
Background
Now that the popularity of body armor in the military is high, we can often see in various large pieces that most body armor is made of multiple layers of aramid or polyethylene PE, which, although relatively lightweight to wear, is at most of class IIIA according to the us standard NIJ due to material and technical limitations. I.e. only 9mm and 44 caliber pistol cartridges can be secured. Body armor is overwhelmed when facing the rifle. In order to be able to protect against higher levels of threat, it is necessary to use a bulletproof insert.
Ballistic inserts are commonly used with body armor or tactical vests. The bulletproof flashboard has two types, namely a front board and a side board, the front board can protect the front chest and the back of a human body, and the side board provides protection for the side face of the human body. The chest protection plugboard is developed, and the weight of the plugboard is reduced as much as possible under the condition of ensuring the one-hundred-percent protection characteristic, so that the operational maneuverability of personnel is improved.
However, most of the existing bulletproof flashboards are made of alumina ceramics, the general defense characteristics of the bulletproof flashboards are general, the problems still exist in the aspect of preventing penetration of bullets launched by large single weapons such as sniper rifles, heavy semi-automatic rifles, heavy submachine guns and the like, and products with large thickness and large weight can be made to meet the dual requirements of bulletproof performance and low back projection, so that the original characteristics of light composite materials are usually lost, the weight of the bulletproof flashboards is larger, and the significance of maneuverability and flexibility is lost.
Disclosure of Invention
The invention aims to provide a composite bulletproof flashboard and a preparation method thereof, which aim to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the composite bulletproof flashboard comprises a steel plate and an outer layer, wherein the outer layer is arranged on the outer surface of the steel plate, the top of the steel plate is connected with a mixed fiber layer, the bottom of the steel plate is connected with silicon carbide ceramic, and one side, far away from the steel plate, of the silicon carbide ceramic and the mixed fiber layer is connected with high-performance fibers.
Preferably, the steel plate, the mixed fiber layer and the silicon carbide ceramic are formed through hot press molding, and the mixed fiber layer and the high-performance fibers are integrally sewn to form a three-dimensional woven structure.
Preferably, the mixed fiber layer is formed by weaving one or two of carbon fiber and basalt fiber and UHMWPE fiber in a mixed mode, wherein the UHMWPE fiber accounts for 50% -60%, the carbon fiber and basalt fiber accounts for 40% -45%, and the balance 5% is polyethylene resin.
Preferably, the high-performance fiber is one or more of ultra-high molecular weight polyethylene fiber, aramid fiber and PBO fiber, the silicon carbide ceramic can be replaced by boron carbide ceramic, and the outer layer is made of one of a polyurea coating and a waterproof cloth outer layer.
A preparation method of the composite bulletproof flashboard comprises the following steps:
s1: the mixed fiber layer and the high-performance fiber are integrally sewn to form a three-dimensional knitting structure, and the sewing angle is any combination of 0 degree, 30 degrees, 45 degrees, 60 degrees or 90 degrees.
S2: the steel plate and the mixed fiber layer are subjected to hot press molding, the silicon carbide ceramic and the mixed fiber layer are heated, so that the silicon carbide ceramic and the mixed fiber layer have certain plasticity, and the plasticity layer serves as a layer of molding glue to be firmly bonded with the steel plate under certain pressure.
S3: and after the steel plate, the mixed fiber layer and the silicon carbide ceramic are integrally cooled and formed, performing hot stamping and integral forming on the high-performance fiber and the silicon carbide ceramic, and reducing the stamping temperature to room temperature within 10 minutes after the stamping is finished.
S4: the outer layer is coated on the outside of the high performance fiber.
Preferably, the stamping temperature in S2 is 160-220 ℃, and the stamping time is 10-20 minutes.
Preferably, the stamping temperature in S3 is 60-140 ℃, the pressure acting on the high-performance fiber is 5-25MPa, and the stamping time is 10-20 minutes.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the composite bulletproof flashboard and the preparation method thereof, the density of the silicon carbide ceramic is much lower than that of aluminum oxide, the lighter weight can bring better wearing experience and reduce physical consumption, and the high protection function of the bulletproof flashboard is kept, and meanwhile, the phenomenon that the bulletproof flashboard is heavier and loses maneuverability and flexibility is avoided.
2. According to the composite bulletproof flashboard and the preparation method thereof, the mixed fiber formed by weaving one or two of the carbon fiber and the basalt fiber and the UHMWPE fiber in a mixed mode can effectively resist penetration of the projectile and promote the head of the projectile to deform, the polyethylene resin in the mixed fiber can effectively absorb penetration impact energy of the projectile, the high-performance fiber layer can effectively reduce the damage of the projectile to a wearer, and the protection performance of the bulletproof flashboard is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.
Figure 1 is a schematic cross-sectional view of a ballistic panel of the invention;
FIG. 2 is a schematic cross-sectional view of the hybrid fiber layer of the present invention in conjunction with a high performance fiber.
In the figure: 1. a steel plate; 2. a mixed fiber layer; 3. silicon carbide ceramic; 4. high performance fibers; 5. and (4) an outer layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to figures 1-2 of the drawings,
the first embodiment is as follows:
the invention provides a technical scheme that: the utility model provides a compound shellproof picture peg, includes steel sheet 1 and skin 5, and skin 5 sets up in steel sheet 1's surface, and steel sheet 1's top is connected with mixed fiber layer 2, and steel sheet 1's bottom is connected with silicon carbide pottery 3, and one side that silicon carbide pottery 3 and mixed fiber layer 2 kept away from steel sheet 1 is connected with high performance fibre 4.
The steel plate 1, the mixed fiber layer 2 and the silicon carbide ceramic 3 are formed through hot press forming, the mixed fiber layer 2 and the high-performance fibers 4 are integrally sewn, a three-dimensional woven structure is formed, the mixed fiber layer 2 is formed by weaving carbon fibers and UHMWPE fibers in a mixed mode, the UHMWPE fibers account for 53%, the carbon fibers account for 42%, the rest 5% of the UHMWPE fibers account for polyethylene resin, the high-performance fibers 4 are specifically made by sewing ultrahigh molecular weight polyethylene fibers and aramid fibers, and the outer layer 5 is made of a polyurea coating.
A preparation method of the composite bulletproof flashboard comprises the following steps:
s1: the mixed fiber layer and the high-performance fiber are integrally sewn to form a three-dimensional woven structure, and the sewing angle is +/-45 degrees.
S2: the hot press forming method comprises the steps of hot press forming between a steel plate and a mixed fiber layer, hot press forming between silicon carbide ceramic and the mixed fiber layer, heating the silicon carbide ceramic and the mixed fiber layer to enable the silicon carbide ceramic and the mixed fiber layer to have certain plasticity, enabling the plasticity layer to serve as one layer of forming glue to be firmly bonded with the steel plate under certain pressure, enabling the stamping temperature to be 180 ℃, and enabling the stamping time to be 15 minutes.
S3: and after the steel plate, the mixed fiber layer and the silicon carbide ceramic are integrally cooled and formed, carrying out hot stamping and integral forming on the high-performance fiber and the silicon carbide ceramic, and after stamping is finished, reducing the stamping temperature to room temperature within 10 minutes, wherein the stamping temperature is 120 ℃, the pressure acting on the high-performance fiber is 20MPa, and the stamping time is 15 minutes.
S4: the polyurea coating is applied to the exterior of the high performance fiber.
Example two:
the invention provides a technical scheme that: the utility model provides a compound shellproof picture peg, includes steel sheet 1 and skin 5, and skin 5 sets up in steel sheet 1's surface, and steel sheet 1's top is connected with mixed fiber layer 2, and steel sheet 1's bottom is connected with boron carbide pottery, and one side that steel sheet 1 was kept away from to boron carbide pottery and mixed fiber layer 2 is connected with high performance fiber 4.
The steel plate 1, the mixed fiber layer 2 and the boron carbide ceramic are formed through hot press molding, the mixed fiber layer 2 and the high-performance fiber 4 are integrally sewn to form a three-dimensional woven structure, the mixed fiber layer 2 is formed by weaving basalt fibers and UHMWPE fibers in a mixed mode, the UHMWPE fibers account for 55%, the basalt fibers account for 40%, the rest 5% of the UHMWPE fibers account for polyethylene resin, the high-performance fiber 4 is specifically made of polyester fibers and PBO fibers through sewing, and the outer layer 5 is made of a waterproof cloth outer layer.
A preparation method of the composite bulletproof flashboard comprises the following steps:
s1: the mixed fiber layer and the high-performance fiber are integrally sewn to form a three-dimensional woven structure, and the sewing angle is +/-45 degrees.
S2: the hot press forming method comprises the steps of carrying out hot press forming on a steel plate and a mixed fiber layer, carrying out hot press forming on boron carbide ceramic and the mixed fiber layer, heating the boron carbide ceramic and the mixed fiber layer to enable the boron carbide ceramic and the mixed fiber layer to have certain plasticity, enabling the plasticity layer to serve as a layer of forming glue to be firmly bonded with the steel plate under certain pressure, enabling the stamping temperature to be 180 ℃, and enabling the stamping time to be 15 minutes.
S3: and after the steel plate, the mixed fiber layer and the boron carbide ceramic are integrally cooled and formed, carrying out hot stamping and integral forming on the high-performance fiber and the boron carbide ceramic, and after stamping is finished, reducing the stamping temperature to room temperature within 10 minutes, wherein the stamping temperature is 120 ℃, the pressure acting on the high-performance fiber is 20MPa, and the stamping time is 15 minutes.
S4: and coating the outer layer of the waterproof cloth on the outer part of the high-performance fiber.
Example three:
the invention provides a technical scheme that: the utility model provides a compound shellproof picture peg, includes steel sheet 1 and skin 5, and skin 5 sets up in steel sheet 1's surface, and steel sheet 1's top is connected with mixed fiber layer 2, and steel sheet 1's bottom is connected with silicon carbide pottery 3, and one side that silicon carbide pottery 3 and mixed fiber layer 2 kept away from steel sheet 1 is connected with high performance fibre 4.
The steel plate 1, the mixed fiber layer 2 and the silicon carbide ceramic 3 are formed through hot press forming, the mixed fiber layer 2 and the high-performance fiber 4 are integrally sewn to form a three-dimensional woven structure, the mixed fiber layer 2 is formed by weaving carbon fibers, basalt fibers and UHMWPE fibers in a mixed mode, the UHMWPE fiber proportion is 50%, the carbon fibers and the basalt fibers proportion is 45%, the rest 5% of the UHMWPE fibers are polyethylene resin, the high-performance fiber 4 is specifically made of ultrahigh molecular weight polyethylene fibers, aramid fibers and PBO fibers through sewing, and the outer layer 5 is made of a polyurea coating.
A preparation method of the composite bulletproof flashboard comprises the following steps:
s1: the mixed fiber layer and the high-performance fiber are integrally sewn to form a three-dimensional woven structure, and the sewing angle is +/-45 degrees.
S2: the hot press forming method comprises the steps of hot press forming between a steel plate and a mixed fiber layer, hot press forming between silicon carbide ceramic and the mixed fiber layer, heating the silicon carbide ceramic and the mixed fiber layer to enable the silicon carbide ceramic and the mixed fiber layer to have certain plasticity, enabling the plasticity layer to serve as one layer of forming glue to be firmly bonded with the steel plate under certain pressure, enabling the stamping temperature to be 180 ℃, and enabling the stamping time to be 15 minutes.
S3: and after the steel plate, the mixed fiber layer and the silicon carbide ceramic are integrally cooled and formed, carrying out hot stamping and integral forming on the high-performance fiber and the silicon carbide ceramic, and after stamping is finished, reducing the stamping temperature to room temperature within 10 minutes, wherein the stamping temperature is 120 ℃, the pressure acting on the high-performance fiber is 20MPa, and the stamping time is 15 minutes.
S4: and coating the outer layer of the waterproof cloth on the outer part of the high-performance fiber.
The protection performance of the bulletproof flashboards in the first embodiment, the second embodiment and the third embodiment is detected, rifle bullets with the caliber of 5.56 millimeters are used, the three bulletproof flashboards are continuously shot for 10 times, the degree of penetration of the bullets through the bulletproof flashboards is observed after the bullets are shot, and the penetration thickness of the rifle bullets on the bulletproof flashboards is the minimum in the first embodiment; the wearing tests of the bulletproof flashboards in the first embodiment, the second embodiment and the third embodiment are respectively carried out by the same user, and the physical strength of the bulletproof flashboard in the first embodiment to the user is minimum under the condition that the bulletproof flashboard is worn to run on foot for the same distance.
In summary, the following steps: in this embodiment, the first embodiment is the best embodiment.
It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. The term "comprising", without further limitation, means that the element so defined is not excluded from the group consisting of additional identical elements in the process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides a compound bulletproof picture peg, includes steel sheet (1) and skin (5), skin (5) set up in the surface of steel sheet (1), its characterized in that: the top of steel sheet (1) is connected with mixed fiber layer (2), the bottom of steel sheet (1) is connected with carborundum pottery (3), one side that steel sheet (1) was kept away from in carborundum pottery (3) and mixed fiber layer (2) is connected with high performance fiber (4).
2. A composite ballistic panel according to claim 1, wherein: the steel plate (1), the mixed fiber layer (2) and the silicon carbide ceramic (3) are formed through hot press forming, and the mixed fiber layer (2) and the high-performance fibers (4) are integrally sewn to form a three-dimensional woven structure.
3. A composite ballistic panel according to claim 1, wherein: the mixed fiber layer (2) is formed by weaving one or two of carbon fiber and basalt fiber and UHMWPE fiber in a mixed mode, wherein the UHMWPE fiber accounts for 50% -60%, the carbon fiber and basalt fiber accounts for 40% -45%, and the balance 5% is polyethylene resin.
4. A composite ballistic panel according to claim 1, wherein: the high-performance fiber (4) is one or more of ultra-high molecular weight polyethylene fiber, aramid fiber and PBO fiber, the silicon carbide ceramic (3) can be replaced by boron carbide ceramic, and the outer layer (5) is made of one of a polyurea coating and a waterproof cloth outer layer.
5. A preparation method of the composite bulletproof flashboard is characterized by comprising the following steps:
s1: integrally sewing the mixed fiber layer and the high-performance fibers to form a three-dimensional knitting structure, wherein the sewing angle is any combination of 0 degree, 30 degrees, 45 degrees, 60 degrees or 90 degrees;
s2: hot-press molding is carried out between the steel plate and the mixed fiber layer, hot-press molding is carried out between the silicon carbide ceramic and the mixed fiber layer, the silicon carbide ceramic and the mixed fiber layer are heated, so that the silicon carbide ceramic and the mixed fiber layer have certain plasticity, and the plasticity layer is used as a layer of molding glue and is firmly bonded with the steel plate under certain pressure;
s3: after the steel plate, the mixed fiber layer and the silicon carbide ceramic are integrally cooled and formed, performing hot stamping and integral forming on the high-performance fiber and the silicon carbide ceramic, and reducing the stamping temperature to room temperature within 10 minutes after the stamping is finished;
s4: the outer layer is coated on the outside of the high performance fiber.
6. The method for preparing a composite bulletproof insert plate according to claim 5, wherein the method comprises the following steps: the stamping temperature in the S2 is 160-220 ℃, and the stamping time is 10-20 minutes.
7. The method for preparing a composite bulletproof insert plate according to claim 5, wherein the method comprises the following steps: in the S3, the stamping temperature is 60-140 ℃, the pressure acting on the high-performance fiber is 5-25MPa, and the stamping time is 10-20 minutes.
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