CN107825957B - Military bulletproof protection oil tank shell and preparation method thereof - Google Patents

Military bulletproof protection oil tank shell and preparation method thereof Download PDF

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Publication number
CN107825957B
CN107825957B CN201710897757.9A CN201710897757A CN107825957B CN 107825957 B CN107825957 B CN 107825957B CN 201710897757 A CN201710897757 A CN 201710897757A CN 107825957 B CN107825957 B CN 107825957B
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layer
bulletproof
composite
resin
oil tank
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CN107825957A (en
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曹伟伟
乔琨
朱波
王永伟
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Sdu Tianwei Advanced Material Co ltd
Shandong University
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Sdu Tianwei Advanced Material Co ltd
Shandong University
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • 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
    • 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
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/08—Interconnection of layers by mechanical means
    • 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
    • B32B9/007—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 comprising carbon, e.g. graphite, composite carbon
    • 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
    • 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
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/02—Composition of the impregnated, bonded or embedded layer
    • B32B2260/021—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
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/04—Impregnation, embedding, or binder material
    • B32B2260/046—Synthetic resin
    • 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
    • B32B2262/10—Inorganic fibres
    • B32B2262/101—Glass 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
    • 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
    • B32B2605/00—Vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K2015/03032—Manufacturing of fuel tanks
    • B60K2015/03059—Fuel tanks with double shells or more
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K2015/03486—Fuel tanks characterised by the materials the tank or parts thereof are essentially made from

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Moulding By Coating Moulds (AREA)
  • Laminated Bodies (AREA)

Abstract

The invention provides a structure of a military bulletproof protection oil tank shell and a preparation method thereof. This for military use oil tank casing is by outer to interior being in proper order: the composite bulletproof and bulletproof material comprises five structural levels, namely an impact-resistant layer, a hard bulletproof layer, a composite bulletproof and bulletproof layer, a composite sealing layer and a metal shell core layer. The impact-resistant layer, the hard bulletproof layer, the composite bulletproof and explosion-proof layer and the composite sealing layer are integral multi-layer structural components, and can be assembled with the metal shell core layer into a whole through the bolt connecting device, so that the disassembly and the replacement are convenient. Can promote the comprehensive properties of original for military use oil tank through the external accessory of this composite oil tank, can guarantee its whole prevention of seepage oil through the external composite oil tank accessory of multilayer structure, have the protective capacities of multiple bullet (pistol bullet, rifle bullet, explosion fragment etc.) simultaneously, holistic rigidity obtains guaranteeing not to warp under great impact force, reduction oil tank dead weight that the use of combined material structure can be very big simultaneously promotes the flexible flexibility of the work of for military use equipment.

Description

Military bulletproof protection oil tank shell and preparation method thereof
Technical Field
The invention belongs to the field of military oil tank accessory materials and structures, and particularly relates to a military bulletproof protection oil tank shell and a preparation method thereof.
Background
The oil tank is the oil storage device of various vehicles normal work, in the military transportation and the in service process of operation equipment, no matter external and built-in oil tank play the key effect in the normal operating process of various equipment. In particular, in the case of equipment for battle, such as military armored vehicles, underwater and marine vessels, military helicopters, transport planes and fighters, the oil storage device of the equipment needs to have certain functions of light weight and protection in addition to ensuring the operational capability and action time of the equipment. The military fuel tank component is a key target for enemies to hit due to the flammable and explosive characteristics of fuel, and is one of weak parts of weapon facilities and equipment. In addition, the structural integrity requirement of the oil tank is also the key to ensure the tightness of the oil tank to prevent oil leakage.
Traditional metal material oil tank, though adopt the conventional processing mode of metal, its machining efficiency is high, with low costs, but metal material's density is great, no matter the oil tank that aircraft or vehicle and naval vessel used all has great weight, and the increase of self weight constantly influences the promotion of oil reserve and also has inevitable bottleneck to the performance of the mobility of military equipment. In addition, the metal oil tank is easy to be damaged by bullets and explosives in the equipment operation and driving processes, the problems of explosion, combustion and the like are easy to occur, and the characteristics of bullet prevention, explosion prevention, other anti-collision and the like are weak.
In order to improve the comprehensive performance of built-in or external oil tanks of armored vehicles, airplanes and ships, the application and substitution of novel composite materials are the key points of research work. The basic structure of the metal shell is adopted, the composite material structure is used as a fitting in the metal shell for structural compounding, the appearance of the original metal oil tank shell is reserved, the complex appearance structure design process is avoided, the performance advantages of the composite material structure are brought into play, the composite material structure has comprehensive performances of bulletproof protection, impact resistance, light weight and the like, the integral tightness of the oil tank structure is ensured, and the composite material structure has important significance for improving the performance of military equipment oil tank fittings.
Disclosure of Invention
In order to overcome the defects, the invention provides a structure of a military bulletproof protection oil tank shell and a preparation method thereof. This for military use oil tank casing is by outer to interior being in proper order: the composite bulletproof and bulletproof material comprises five structural levels, namely an impact-resistant layer, a hard bulletproof layer, a composite bulletproof and bulletproof layer, a composite sealing layer and a metal shell core layer. The basic structure of the metal oil tank shell is designed along the original oil tank appearance of military equipment, and other impact-resistant layers, hard bulletproof layers, composite bulletproof and explosion-proof layers and composite sealing layers are integral multi-layer structural components and can be assembled with the metal shell core layer into a whole through a bolt connecting device, so that the metal oil tank shell is convenient to disassemble and replace. Can promote the comprehensive properties of original for military use oil tank through the external accessory of this composite oil tank, can guarantee its whole prevention of seepage oil through the external composite oil tank accessory of multilayer structure, have the protective capacities of multiple bullet (pistol bullet, rifle bullet, explosion fragment etc.) simultaneously, holistic rigidity obtains guaranteeing not to warp under great impact force, reduction oil tank dead weight that the use of combined material structure can be very big simultaneously promotes the flexible flexibility of the work of for military use equipment.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a military bulletproof protection oil tank shell, which comprises: the composite bulletproof and bulletproof material comprises an impact-resistant layer, a hard bulletproof layer, a composite bulletproof and bulletproof layer, a composite sealing layer and a metal shell core layer; the impact-resistant layer, the hard bulletproof layer, the composite bulletproof and anti-riot layer, the composite sealing layer and the metal shell core layer are sequentially arranged from outside to inside.
Preferably, the metal used for the metal shell core layer is any one of high-hardness stainless steel, aluminum alloy and titanium alloy.
Preferably, the specific connection position on the surface of the metal shell core layer adopts an internal-sinking threaded hole type structure for connecting and assembling with an external composite multilayer structure, and the composite multilayer structure comprises from outside to inside: the composite bulletproof and bulletproof material comprises an impact-resistant layer, a hard bulletproof layer, a composite bulletproof and bulletproof layer and a composite sealing layer;
preferably, the thickness of the metal shell core layer is flexibly selected according to the requirement of the whole self weight of the military oil tank.
Preferably, the external composite oil tank accessory layer is connected with the metal shell core layer through metal bolts.
Preferably, the metal bolt is made of any one of stainless steel, aluminum alloy and titanium alloy, and the bolt is in the shape of a hexagon bolt or an inner hole bolt.
Preferably, the multilayer structure of the external composite oil tank accessory takes a metal shell core layer as a base material, and is prepared from inside to outside according to a gradient through the multilayer structure, wherein the composite sealing layer is prepared on the surface of the metal shell core layer by adopting a thermoplastic resin impregnated fiber braided fabric or filament through a winding or two-dimensional layering process.
Preferably, the thermoplastic resin can be any one of polyurethane, polyethylene, polyphenylene sulfide and the like, the final resin content of the layer is controlled between 30 and 60 percent,
preferably, the used fiber can be any one of aramid fiber, UHMWPE fiber, PBO fiber and the like, and the fabric structure can be two-dimensional plain weave, twill, satin fabric or unidirectional fabric cross-ply.
Preferably, the hard bulletproof layer is of a hard ceramic sheet layer splicing and combining structure, the hard ceramic bulletproof pieces are spliced on the surface of the composite bulletproof and riot-proof layer, and the splicing is pre-fixed by adopting high-strength glue spraying;
preferably, the ceramic bulletproof layer selected for splicing is made of one of silicon carbide, boron nitride, silicon nitride, aluminum oxide and boron carbide;
preferably, the shape of the ballistic resistant sheet is quadrilateral or hexagonal, and a combination of both.
Preferably, the impact-resistant layer is formed by spreading two-dimensional fabric on the surface of the hard bulletproof ceramic layer;
preferably, the two-dimensional fabric can be selected from plain, twill or satin fabric of any one of carbon fiber, glass fiber, UHMWPE fiber and aramid fiber,
preferably, after the fabric is laminated, a multi-layer structure prepared by the hard bulletproof layer, the composite bulletproof and bulletproof layer and the composite sealing layer is integrally sealed through a vacuum system, thermosetting resin is adopted for forming through vacuum introduction, the resin is thermoplastic modified thermosetting resin, wherein the thermosetting resin is any one of epoxy resin, phenolic resin and unsaturated polyester resin, the main resin is modified through thermoplastic blending, the modified resin can be any one of polyurethane, polyethylene, polyphenylene sulfide and the like, the resin content of the final impact-resistant layer is controlled to be 30-60%, and the vacuum degree of vacuum introduction is controlled to be 0.06-0.1 MPa.
Preferably, after thermoplastic modified thermosetting resin is introduced into the impact-resistant layer in a vacuum manner, the integral oil tank is placed in thermosetting equipment for curing and molding, and the curing temperature and the curing time are flexibly designed according to the characteristic requirements of the resin.
The invention has the advantages of
(1) Adopt two parts of external multilayer overall structure and metallic oil tank sandwich layer, guaranteed holistic structural integrity through bolted connection, bolted mechanical connection's structure makes things convenient for external multilayer shell structure's dismantlement to change simultaneously, and is nimble convenient.
(2) External multilayer oil tank integral structure adopts the leading-in shaping of vacuum finally, has guaranteed holistic structural integrity, and inside metal sandwich layer continues to use original for military use oil tank structural appearance, and other multilayer structures are the composite construction design, can adjust according to original appearance, have reduced the design degree of difficulty.
(3) External multilayer oil tank structure includes: the impact-resistant layer, the hard bulletproof layer, the composite bulletproof and anti-riot layer and the composite sealing layer are combined by using a multi-type resin system and a fiber system, so that the comprehensive characteristics of overall bulletproof, anti-riot, impact resistance, leakage resistance and light weight are ensured.
(4) The preparation method is simple, good in protection effect, strong in practicability and easy to popularize.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
Fig. 1 is a basic structural schematic diagram of a military bulletproof protection oil tank shell. The military oil tank shell sequentially comprises an impact-resistant layer 1, a hard bulletproof layer 2, a composite bulletproof and riot-proof layer 3, a composite sealing layer 4 and a metal shell core layer 5.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
The invention provides a structure of a military bulletproof protection oil tank shell and a preparation method thereof. This for military use oil tank casing is by outer to interior being in proper order: the composite bulletproof and bulletproof material comprises five structural levels, namely an impact-resistant layer, a hard bulletproof layer, a composite bulletproof and bulletproof layer, a composite sealing layer and a metal shell core layer. The basic structure of the metal oil tank shell is designed along the original oil tank appearance of military equipment, and other impact-resistant layers, hard bulletproof layers, composite bulletproof and explosion-proof layers and composite sealing layers are integral multi-layer structural components and can be assembled with the metal shell core layer into a whole through a bolt connecting device, so that the metal oil tank shell is convenient to disassemble and replace. Can promote the comprehensive properties of original for military use oil tank through the external accessory of this composite oil tank, can guarantee its whole prevention of seepage oil through the external composite oil tank accessory of multilayer structure, have the protective capacities of multiple bullet (pistol bullet, rifle bullet, explosion fragment etc.) simultaneously, holistic rigidity obtains guaranteeing not to warp under great impact force, reduction oil tank dead weight that the use of combined material structure can be very big simultaneously promotes the flexible flexibility of the work of for military use equipment.
The core layer of the metal shell adopts the design scheme of the appearance structure of the original oil tank, the used metal can be any one of high-hardness stainless steel, aluminum alloy, titanium alloy and the like, and the specific connecting part on the surface of the core layer of the metal shell adopts an inward-sinking threaded hole type structure for connecting and assembling with an external composite multilayer structure. Wherein the thickness of metal casing sandwich layer requires nimble the selection according to the whole dead weight of military oil tank.
External compound oil tank accessory be whole multilayer structure part promptly, include by outside to the inside: the composite bulletproof and bulletproof structure comprises an impact-resistant layer, a hard bulletproof layer, a composite bulletproof and bulletproof layer and a composite sealing layer, wherein a threaded connection hole type structure is embedded in a specific part of the multilayer structure part and is used for being connected with the metal shell core layer.
The connection between the external composite oil tank accessory layer and the metal shell core layer is completed by adopting metal bolts, the inner diameter of each metal bolt can be flexibly designed according to the external size of the oil tank, the metal bolts can be made of any one of stainless steel, aluminum alloy, titanium alloy and the like, and the external shapes of the bolts can be made of any one of hexagon bolts, inner hole bolts and the like.
The multilayer structure of the external composite oil tank accessory takes a metal shell core layer as a base material and is prepared from the inside to the outside according to a gradient through the multilayer structure, wherein the composite sealing layer is prepared on the surface of the metal shell core layer by adopting a thermoplastic resin impregnated fiber braided fabric or filament through a winding or two-dimensional layering process.
The thermoplastic resin used by the composite sealing layer can be any one of polyurethane, polyethylene, polyphenylene sulfide and the like, and the final resin content of the layer is controlled to be 30-60%; the reinforced fiber of the sealing layer can be selected from any one of aramid fiber, carbon fiber, glass fiber, UHMWPE fiber and the like to be compounded with resin through winding and two-dimensional layering technology, wherein the two-dimensional fiber fabric can be selected from any one of plain weave, twill weave and satin weave, and the thickness of the composite sealing layer is flexibly designed according to the appearance and self-weight requirements of the oil tank.
The composite bulletproof and explosion-proof layer is prepared by adopting a resin reinforced high-performance bulletproof fiber composite material, wherein a resin matrix is selected from any one of aqueous polyurethane, polyethylene, SEBS, SBS and other rubber elastomers, and the content of the resin matrix is controlled to be 30-60%; the used fiber can be aramid fiber, UHMWPE fiber, PBO fiber and the like, the fabric structure can be two-dimensional plain weave, twill, satin weave fabric or one-way fabric cross-ply, and the thickness of the composite bulletproof and anti-riot layer is flexibly designed according to the requirements of the appearance and the self weight of the oil tank.
The hard bulletproof layer is of a hard ceramic sheet layer splicing and combining structure, the hard ceramic bulletproof pieces are spliced on the surface of the composite bulletproof and bulletproof layer and are pre-fixed by high-strength glue spraying, the materials of the ceramic bulletproof layer selected for splicing can be any one of silicon carbide, boron nitride, silicon nitride, aluminum oxide, boron carbide and the like, the shape of the bulletproof piece can be any one or a plurality of combinations of quadrangle, hexagon and the like, and the thickness of the hard bulletproof layer is flexibly designed according to the appearance and dead weight requirements of the oil tank.
The impact-resistant layer is prepared on the surface of the hard bulletproof ceramic layer, two-dimensional fabric is selected and spread on the surface of the hard bulletproof ceramic layer, the two-dimensional fabric can be plain, twill or satin fabric of any one of carbon fiber, glass fiber, UHMWPE fiber and aramid fiber, the lamination thickness is flexibly designed according to requirements, after the fabric is laminated, a multilayer structure prepared in advance by the hard bulletproof layer, the composite bulletproof and anti-riot layer and the composite sealing layer is integrally sealed by a vacuum system, thermosetting resin is adopted for vacuum introduction molding, the resin is selected to be thermoplastic modified thermosetting resin, wherein the thermosetting resin is any one of epoxy resin, phenolic resin and unsaturated polyester resin, the main resin is subjected to thermoplastic blending modification, the modified resin can be any one of polyurethane, polyethylene, polyphenylene sulfide and the like, and the resin content of the impact-resistant layer is controlled to be 30-60 percent finally, the vacuum degree of vacuum introduction is controlled within the range of 0.06-0.1 MPa.
After thermoplastic modified thermosetting resin is introduced into the impact-resistant layer in a vacuum manner, the whole oil tank is placed in thermosetting equipment for curing and forming, and the curing temperature and the curing time are flexibly designed according to the characteristic requirements of the resin.
Example 1
(1) And preparing a metal shell core layer. According to the exterior requirement of the oil tank, high-hardness stainless steel is selected as a basic material, an inward-sinking threaded hole with the diameter of 10mm is machined in a specific position of the shell, and the thickness of a core layer of the metal shell is 4 mm.
(2) The external composite oil tank accessory is an integral multi-layer structural component and comprises an impact-resistant layer, a hard bulletproof layer, a composite bulletproof and anti-riot layer and a composite sealing layer from outside to inside, the corresponding parts of the multi-layer structure and the metal shell core layer are connected by adopting an internal embedded threaded hole type structure with the diameter of 10mm, and the multi-layer structure is connected by selecting hexagonal connecting bolts made of stainless steel.
(3) And preparing a composite sealing layer of the external composite oil tank accessory. The plain weave fabric with the resin content of 30% and the polyurethane thermoplastic resin impregnated aramid fiber is prepared on the surface of the metal shell core layer through a two-dimensional layering process, and the thickness of the composite sealing layer is 1 mm.
(4) And preparing a composite bulletproof and anti-riot layer of the external composite oil tank accessory. The composite bulletproof and riot-proof layer with the thickness of 15mm is prepared by adopting water-based polyurethane with the content of 60 percent as a resin matrix and adopting aramid fiber with a two-dimensional plain orthogonal fabric structure,
(5) and preparing a hard bulletproof layer of the external composite oil tank accessory. Adopts a splicing and combining structure of a hard ceramic sheet layer which is made of silicon carbide and has the thickness of 4mm and a quadrilateral shape, the splicing area is consistent with the coverage area of the composite bulletproof and anti-riot layer,
(6) and preparing an impact-resistant layer of the external composite oil tank accessory. The two-dimensional laminated fabric with the plain weave thickness of 2mm and made of carbon fibers is paved on the surface of the hard bulletproof ceramic layer, after the laminated fabric is paved, the multilayer structure prepared by the hard bulletproof layer, the composite bulletproof and anti-riot layer and the composite sealing layer is integrally sealed through a vacuum system, polyurethane modified epoxy resin is used as introduced resin, the vacuum degree of vacuum introduction is within the range of 0.06MPa, and the content of the introduced resin is 60 percent finally. After resin is introduced into the impact resistant layer, the impact resistant layer is placed in a heating system at the temperature of 120 ℃ for curing for 3 hours and then is molded.
Example 2
(1) And preparing a metal shell core layer. According to the appearance requirement of the oil tank, aluminum alloy is selected as a basic material, an inner-sunken threaded hole with the diameter of 10mm is machined in a specific position of the shell, and the thickness of a core layer of the metal shell is 4 mm.
(2) The external composite oil tank accessory is an integral multi-layer structural component and comprises an impact-resistant layer, a hard bulletproof layer, a composite bulletproof and anti-riot layer and a composite sealing layer from outside to inside, the corresponding parts of the multi-layer structure and the metal shell core layer are connected by adopting an embedded threaded hole type structure with the diameter of 10mm, and the multi-layer structure is connected by selecting an inner hole connecting bolt made of stainless steel.
(3) And preparing a composite sealing layer of the external composite oil tank accessory. The plain weave fabric of the polyurethane thermoplastic resin impregnated aramid fiber with the resin content of 40% is prepared on the surface of the metal shell core layer through a two-dimensional layering process, and the thickness of the composite sealing layer is 1 mm.
(4) And preparing a composite bulletproof and anti-riot layer of the external composite oil tank accessory. The composite bulletproof and anti-riot layer with the thickness of 15mm is prepared by adopting 60 percent of waterborne polyurethane as a resin matrix and selecting UHMWPE fibers with a two-dimensional plain weave structure,
(5) and preparing a hard bulletproof layer of the external composite oil tank accessory. The hard ceramic sheet layer splicing composite structure which is made of boron nitride and has the thickness of 4mm and the shape of quadrangle is adopted, the splicing area is consistent with the covering area of the composite bulletproof and anti-riot layer,
(6) and preparing an impact-resistant layer of the external composite oil tank accessory. The method comprises the steps of paving a two-dimensional laminated fabric with the thickness of 2mm and with glass fiber satin on the surface of a hard bulletproof ceramic layer, after the laminated fabric is paved, integrally sealing a multilayer structure prepared by the hard bulletproof layer, the composite bulletproof and bulletproof layer and the composite sealing layer through a vacuum system, adopting polyphenylene sulfide modified phenolic resin as introduced resin, and finally ensuring the vacuum degree of vacuum introduction to be within 0.1MPa and the content of the introduced resin to be within 50 percent. After resin is introduced into the impact resistant layer, the impact resistant layer is placed in a heating system at the temperature of 130 ℃ for curing for 2 hours and then is molded.
Example 3
(1) And preparing a metal shell core layer. According to the appearance requirement of the oil tank, titanium alloy is selected as a basic material, an inner sunken threaded hole with the diameter of 10mm is machined in a specific position of the shell, and the thickness of a core layer of the metal shell is 4 mm.
(2) The external composite oil tank accessory is an integral multi-layer structural component and comprises an impact-resistant layer, a hard bulletproof layer, a composite bulletproof and anti-riot layer and a composite sealing layer from outside to inside, the corresponding parts of the multi-layer structure and the metal shell core layer are connected by adopting an embedded threaded hole structure with the diameter of 10mm, and the multi-layer structure is connected by adopting a hexagonal connecting bolt made of a titanium alloy material.
(3) And preparing a composite sealing layer of the external composite oil tank accessory. The composite sealing layer is prepared on the surface of a metal shell core layer by adopting a winding process to impregnate filaments of glass fibers with polyethylene thermoplastic resin with the resin content of 40%, and the thickness of the composite sealing layer is 1 mm.
(4) And preparing a composite bulletproof and anti-riot layer of the external composite oil tank accessory. SEBS with the content of 52 percent is adopted as a resin matrix, UHMWPE fibers with a unidirectional fabric orthogonal fabric structure are selected to prepare a composite bulletproof and anti-riot layer with the thickness of 15mm,
(5) and preparing a hard bulletproof layer of the external composite oil tank accessory. The hard ceramic sheet layer splicing combination structure which is made of alumina and has the thickness of 4mm and the shape of hexagon is adopted, the splicing area is consistent with the coverage area of the composite bulletproof and anti-riot layer,
(6) and preparing an impact-resistant layer of the external composite oil tank accessory. Two-dimensional laminated fabric with the twill thickness of 2mm of aramid fiber is paved on the surface of the hard bulletproof ceramic layer, after the laminated fabric is paved, a multilayer structure prepared by the hard bulletproof layer, the composite bulletproof and anti-riot layer and the composite sealing layer is integrally sealed through a vacuum system, polyphenylene sulfide modified unsaturated polyester resin is used as introduced resin, the vacuum degree of vacuum introduction is within the range of 0.08MPa, and finally the content of the introduced resin is between 40%. After resin is introduced into the impact resistant layer, the impact resistant layer is placed in a heating system at 125 ℃ for curing for 2 hours and then is molded.
Example 4
(1) And preparing a metal shell core layer. According to the appearance requirement of the oil tank, aluminum alloy is selected as a basic material, an inner-sunken threaded hole with the diameter of 10mm is machined in a specific position of the shell, and the thickness of a core layer of the metal shell is 4 mm.
(2) The external composite oil tank accessory is an integral multi-layer structural component and comprises an impact-resistant layer, a hard bulletproof layer, a composite bulletproof and anti-riot layer and a composite sealing layer from outside to inside, the corresponding parts of the multi-layer structure and the metal shell core layer are connected by adopting an embedded threaded hole structure with the diameter of 10mm, and the multi-layer structure is connected by adopting a hexagonal connecting bolt made of a titanium alloy material.
(3) And preparing a composite sealing layer of the external composite oil tank accessory. The composite sealing layer is prepared by adopting polyurethane thermoplastic resin with resin content of 45% to impregnate twill braided fabric of UHMWPE fibers and performing two-dimensional layering on the surface of a metal shell core layer, wherein the thickness of the composite sealing layer is 1 mm.
(4) And preparing a composite bulletproof and anti-riot layer of the external composite oil tank accessory. SBS with the content of 40 percent is adopted as a resin matrix, aramid fiber with a two-dimensional plain weave fabric structure is selected to prepare a composite bulletproof and anti-riot layer with the thickness of 15mm,
(5) and preparing a hard bulletproof layer of the external composite oil tank accessory. Adopts a hard ceramic sheet splicing and combining structure which is made of boron carbide and has the thickness of 4mm and the shape of quadrangle, the splicing area is consistent with the coverage area of the composite bulletproof and anti-riot layer,
(6) and preparing an impact-resistant layer of the external composite oil tank accessory. The method comprises the steps of paving a two-dimensional laminated fabric with a plain weave thickness of 2mm of carbon fibers on the surface of a hard bulletproof ceramic layer, after the laminated fabric is paved, integrally sealing a multi-layer structure prepared by the hard bulletproof layer, the composite bulletproof and anti-riot layer and the composite sealing layer through a vacuum system, adopting polyurethane modified epoxy resin as introduced resin, and finally enabling the vacuum degree of vacuum introduction to be within the range of 0.09MPa and the content of the introduced resin to be between 38%. After resin is introduced into the impact resistant layer, the impact resistant layer is placed in a heating system at the temperature of 122 ℃ for curing for 2.5 hours and then is molded.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (9)

1. A military ballistic protection tank shell comprising a composite multilayer structure and a metal shell core, the composite multilayer structure comprising: the composite bulletproof and bulletproof material comprises an impact-resistant layer, a hard bulletproof layer, a composite bulletproof and bulletproof layer and a composite sealing layer; the impact-resistant layer, the hard bulletproof layer, the composite bulletproof and anti-riot layer, the composite sealing layer and the metal shell core layer are sequentially arranged from outside to inside;
the composite bulletproof and anti-riot layer is a resin-reinforced high-performance bulletproof fiber composite material; the composite multilayer structure takes a metal shell core layer as a base material and is prepared from inside to outside according to a gradient through the composite multilayer structure, wherein the composite sealing layer is prepared on the surface of the metal shell core layer by adopting a thermoplastic resin impregnated fiber braided fabric or filament yarn through a winding or two-dimensional layering process; the hard bulletproof layer is of a hard ceramic sheet layer splicing combined structure, hard ceramic bulletproof pieces are spliced on the surface of the composite bulletproof and riot-proof layer, and the splicing is pre-fixed by adopting high-strength glue spraying; the impact-resistant layer is formed by paving two-dimensional fabric on the surface of the hard bulletproof layer;
after the fabric is laminated, simultaneously, a composite multilayer structure prepared by the hard bulletproof layer, the composite bulletproof and bulletproof layer and the composite sealing layer is integrally sealed through a vacuum system, thermosetting resin is adopted for forming through vacuum introduction, and the resin is selected as thermoplastic modified thermosetting resin; the composite multilayer structure is an integral multilayer component, and the connecting part on the surface of the core layer of the metal shell adopts an inward-sinking threaded hole type structure for connecting and assembling with the composite multilayer structure;
the composite multilayer structure is connected with the metal shell core layer by adopting metal bolts.
2. The fuel tank shell according to claim 1, wherein the metal used for the core layer of the metal shell is any one of high-hardness stainless steel, aluminum alloy and titanium alloy.
3. A tank housing according to claim 1,
the thickness of the metal shell core layer is flexibly selected according to the requirement of the whole self weight of the military oil tank.
4. The fuel tank shell according to claim 1, wherein the metal bolt is made of any one of stainless steel, aluminum alloy and titanium alloy, and the bolt is in the shape of a hexagon bolt or an inner hole bolt.
5. The fuel tank case according to claim 1, wherein in the thermoplastic resin-impregnated fiber, the thermoplastic resin is selected from any one of polyurethane, polyethylene and polyphenylene sulfide, and the final resin content of the composite sealant layer is controlled to be 30-60%,
the used fiber is any one of aramid fiber, UHMWPE fiber, PBO fiber and the like, and the fabric structure is two-dimensional plain weave, twill weave, satin weave fabric or one-way fabric orthogonal layering.
6. A tank housing according to claim 1,
the material of the ceramic bulletproof layer selected for splicing is one of silicon carbide, boron nitride, silicon nitride, aluminum oxide and boron carbide;
the shape of the bulletproof piece is quadrilateral or hexagonal, and the combination of the quadrilateral and the hexagonal.
7. The fuel tank shell according to claim 1, wherein the two-dimensional fabric is selected from plain, twill or satin fabric of any one of carbon fiber, glass fiber, UHMWPE fiber and aramid fiber.
8. A fuel tank housing as claimed in claim 1, wherein said thermosetting resin is formed by vacuum infusion,
the resin is selected to be thermosetting resin modified by thermoplasticity, wherein the thermosetting resin is any one of epoxy resin, phenolic resin and unsaturated polyester resin, the main resin is modified by thermoplasticity blending, the modified resin is selected from any one of polyurethane, polyethylene and polyphenylene sulfide, the resin content of the final impact-resistant layer is controlled between 30 and 60 percent, and the vacuum degree of vacuum introduction is controlled within the range of 0.06 to 0.1 MPa.
9. The fuel tank shell according to claim 8, wherein after the shock-resistant layer is vacuum-introduced into the thermosetting resin modified by the thermoplastic, the integral fuel tank is placed in a thermosetting device for curing and molding, and the curing temperature and the curing time are flexibly designed according to the characteristic requirements of the resin.
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CN111546880B (en) * 2020-04-13 2023-09-29 山东非金属材料研究所 Oil leakage preventing oil tank after bullet striking and preparation method thereof
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