CN108638590A - Fibre reinforced foamed aluminium-pyramid sandwich plate composite construction and preparation method thereof - Google Patents
Fibre reinforced foamed aluminium-pyramid sandwich plate composite construction and preparation method thereof Download PDFInfo
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- CN108638590A CN108638590A CN201810463418.4A CN201810463418A CN108638590A CN 108638590 A CN108638590 A CN 108638590A CN 201810463418 A CN201810463418 A CN 201810463418A CN 108638590 A CN108638590 A CN 108638590A
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/002—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of porous nature
- B22F7/004—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of porous nature comprising at least one non-porous part
- B22F7/006—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of porous nature comprising at least one non-porous part the porous part being obtained by foaming
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- 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
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/046—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of foam
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- 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
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- 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
- B32B5/18—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 features of a layer of foamed material
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/12—Electroplating: Baths therefor from solutions of nickel or cobalt
- C25D3/14—Electroplating: Baths therefor from solutions of nickel or cobalt from baths containing acetylenic or heterocyclic compounds
- C25D3/16—Acetylenic compounds
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/38—Electroplating: Baths therefor from solutions of copper
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/54—Electroplating of non-metallic surfaces
-
- 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
- B32B2266/00—Composition of foam
- B32B2266/04—Inorganic
- B32B2266/045—Metal
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- Organic Chemistry (AREA)
- Composite Materials (AREA)
- Manufacturing & Machinery (AREA)
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- Manufacture Of Alloys Or Alloy Compounds (AREA)
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Abstract
The invention discloses a kind of fibre reinforced foamed aluminium pyramid sandwich plate composite constructions and preparation method thereof, pyramid dot matrix core, which is arranged between two panels, constitutes pyramid dot matrix sandwich plate composite construction, intermittent is filled with fibre reinforced foamed aluminium in the hole of pyramid dot matrix core, reinforced phase carbon fiber is added in fibre reinforced foamed aluminium, the relative density of pyramid dot matrix core is 0.01~0.15, and the density of fibre reinforced foamed aluminium is 0.1~1.1g/cm3, porosity is 60~95%.Manufacturing process cost of the present invention is relatively low, is easy to large-scale production, is with a wide range of applications in fields such as security protection, communications and transportation, machine-building, aerospaces.
Description
Technical field
The invention belongs to ultra light porous metal field of material technology, and in particular to a kind of fibre reinforced foamed aluminium-gold word
Tower sandwich plate composite construction and preparation method thereof.
Background technology
Ultra light porous metal material is to go out in recent years with the rapid development of material preparation and mechanical manufacturing technology
The existing novel and multifunctional material of one kind, the feature with structure-function integration.There is its core high porosity, micro-structure to press
Regular degree can be divided into unordered and orderly two major classes, the former includes closed-cell aluminum foam, and the latter includes two-dimensional lattice material
(such as ripple struction) and three-dimensional truss structure (such as pyramid structure, tetrahedral structure).
Foamed aluminium has the high feature of porosity, has excellent energy-absorbing, heat-insulated, damping property, but because can not in preparing
Avoid the pore structure defect generated, strength and stiffness all relatively low.In order to promote the performance of foamed aluminium, presently, there are have particle
The modes such as enhancing and fiber reinforcement.Certain SiC, SiO are added in foamed aluminium2、Al2O3Particle and power plant's waste material flyash etc.
Ingredient can play the role of improving foamed aluminium intensity, but not due to the dynamics viscosity of these particulate materials and foamed aluminium
Height can cause foamed aluminium fault of construction, and then influence the mechanical property of foamed aluminium so being unable to long-time stable foam.It is steeping
Copper carbon fiber is added in foam aluminium, the dynamics viscosity of matrix can be obviously improved, platform can be promoted with long-time stable foam
Stress enhances energy absorption capability.The specific strength and specific stiffness of dot matrix metal sandwich plate are high, with the obvious advantage as structural material,
But its core or node tend to just reach peak stress in lower strain, then softening failure.The two is compound,
Foamed aluminium-dot matrix sandwich plate composite construction is prepared, the integration of two kinds of material advantage performances may be implemented, make up respective mechanical property
The deficiency of energy, to obtain the compound structure for new residence that mechanical property is substantially improved.
In existing foamed aluminium-pyramid dot matrix sandwich plate composite construction, foamed aluminium filling not only increases lattice core
Anti- flexion capabilities, and improve the compressive strength and energy absorption capability of compound core body.In order to further enhance foamed aluminium-
The overall performance of pyramid dot matrix sandwich plate composite construction considers to introduce carbon fiber or regeneration carbon fiber in foamed aluminium material
Dimension, prepares fibre reinforced foamed aluminium material.This material is filled in pyramid dot matrix sandwich plate, can further be increased
The intensity and toughness of strong structure, the energy absorption of lift structure have widened foamed aluminium-pyramid dot matrix sandwich plate composite junction
Application of the structure in engineering fields such as lighting protection plate, train collision avoidance component, bumper and anti-terrorism explosion equipments.
In addition, the main method for preparing foamed aluminium at present is foam melt method and powder metallurgic method.In view of pyramid point
The complexity of core in battle array sandwich plate, foam melt method, which prepares foamed aluminium material, can not be directly filled into pyramid dot matrix interlayer
In plate.How the fibre reinforced foamed aluminium that foam in place goes out metallurgical bonding interface in pyramid dot matrix sandwich plate is composite junction
It is configured standby key.
Invention content
In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is that providing a kind of carbon fiber increasing
Strong foamed aluminium-pyramid sandwich plate composite construction and preparation method thereof, by fibre reinforced foamed aluminium in pyramid dot matrix interlayer
Foam in place forms metallurgical bonding interface and obtains multi-functional fibre reinforced foam so as to improve overall mechanical properties in plate
Aluminium-pyramid dot matrix sandwich plate.
The present invention uses following technical scheme：
A kind of fibre reinforced foamed aluminium-pyramid sandwich plate composite construction, including panel and pyramid dot matrix core, gold
Word tower lattice core, which is arranged between two panels, constitutes pyramid dot matrix sandwich plate composite construction, in pyramid dot matrix core
Intermittent is filled with fibre reinforced foamed aluminium in hole, and reinforced phase carbon fiber, golden word are added in fibre reinforced foamed aluminium
The relative density of tower lattice core is 0.01~0.15, and the density of fibre reinforced foamed aluminium is 0.1~1.1g/cm3, porosity
It is 60~95%.
A kind of preparation method of fibre reinforced foamed aluminium-pyramid sandwich plate composite construction, prepares pyramid point first
Battle array core；Pyramid dot matrix sandwich plate is made in pyramid dot matrix core and panel welding；Then by matrix powder, foaming agent and
Carbon fiber or recycling carbon fibre with the coat of metal are mixed and stirred for uniformly, the powder mixed being put into mold and is molded into
Preliminary embryo material, then it is squeezed into expandable precast body, pressed expandable precast body is then inserted into pyramid dot matrix sandwich plate
In, it is put into atmosphere furnace and foams；Finally heated and heat preservation is expanded to be formed to precast body and is completely filled in pyramid dot matrix sandwich plate
The fibre reinforced foamed aluminium postcooling of hole obtains fibre reinforced foamed aluminium-pyramid sandwich plate composite construction.
Specifically, punching rhombus net or the stretching nets of smooth mistake are formed pyramid dot matrix core using molding or folding
Then body is degreased panel and pyramid dot matrix core and rusty stain using metal cleaner cleaning, using soldering or laser
Panel is connect by weldering with pyramid dot matrix core is made pyramid dot matrix sandwich plate.
Specifically, preparing for carbon fiber or recycling carbon fibre with the coat of metal is as follows：
20~40min will be heated in air atmosphere of the carbon fibre precursor at 350~450 DEG C, then soak using galvanoplastic
Enter and boil 10~30min in the nitric acid of mass concentration 20~40%, then is rinsed to neutrality with sub- water of leaving away；Be put into electroplate liquid into
Row electro-deposition, in carbon fiber or recycling carbon fibre surface plating last layer metallic copper or metallic nickel, then again by carbon fiber or again
Raw carbon fiber filament is cut into the chopped carbon fiber of 2~4mm.
Further, galvanoplastic are specially in the technique of carbon fiber or recycling carbon fibre copper coating：
Electroplating bath components are CuSO460~180g/L, H2SO4120~180g/L；Additive component is 2- sulfydryl benzos
0.1~0.3g/L of imidazoles, 0.2~0.4g/L of ethylene thiourea, 5~8g/L of sodium polydithio-dipropyl sulfonate, methyl blue 0.3~
30~50g/L of 0.6g/L, OP-10 emulsifier；Wherein, additive amount is 1~5ml/L, and temperature of electroplating solution is 12~20 DEG C, electricity
Pressure is 1~2V, and electroplating time is 4~10min.
Further, galvanoplastic are specially in the technique of carbon fiber or recycling carbon fibre plating nickel on surface：
Electroplating bath components are NiSO4300~400g/L, H3BO335~45g/L；Additive component be NaCl 90~
110g/L, 1~3g/L of benzene sulfonic acid sodium salt, 1~3g/L of lauryl sodium sulfate, 0.2~0.6g/L of lignocaine pentyne glycol；Addition
Agent dosage is 40~60ml/L, and temperature of electroplating solution is 12~20 DEG C, and current density is 0.2~0.4A/dm2, electroplating time be 3~
7min。
Specifically, being by mass ratio:Matrix powder and foaming agent be put into planetary ball mill 1~3h of mixing, then exist
The carbon fiber or recycling carbon fibre with the coat of metal that mass fraction is 1~10% are added in batch mixing；With purity be 95% with
On industrial alcohol as carbon fiber dispersant, 20~50ml alcohol is added in every 100g mixtures, mechanical agitation is uniform, stirs
It is 10~20min to mix the time, and mixing speed is 500~1000r/min；The mixture stirred evenly is put into vacuum dryer, dries
Dry temperature is 80~120 DEG C, and vacuum degree is 10~100Pa, and drying time is 10~20min.
Further, matrix powder is technical pure aluminium powder, alusil alloy powder or Al alloy powder, and the granularity of matrix powder is 40
~150 μm；Alusil alloy powder is AlSi6, AlSi7 or AlSi12；Al alloy powder is AlSi7Mg or AA6061；Foaming agent is hydrogen
Change titanium, granularity is 50~200 μm；
When matrix powder is technical pure aluminium powder, heating temperature is 690~730 DEG C, when matrix powder is AlSi6, heating temperature
Degree is 610~650 DEG C, and when matrix powder is AlSi7, heating temperature is 610~650 DEG C, when matrix powder is AlSi12, heating
Temperature is 610~660 DEG C, and when matrix powder is AlSi7Mg, heating temperature is 610~650 DEG C, when matrix powder is AA6061,
Heating temperature is 650~710 DEG C.
Specifically, using powder continuous extruding technology, control extrusion ratio is more than 10, and the powder mixed is put into mold mould
It is pressed into preliminary embryo material, control molding pressure is 150~350MPa, then the blank is squeezed into the line that compactness is not less than 99%
The expandable precast body of shape；Finally soda acid is carried out to expandable precast body and pyramid dot matrix sandwich plate to wash to remove its Surface Oxygen
Change film and drying.
Specifically, it is nitrogen or argon gas to be put into protective gas after expandable precast body is inserted in pyramid dot matrix sandwich plate
Atmosphere furnace in foam；Temperature is increased to the fusing point of matrix powder or more from room temperature with the heating speed of 30~120 DEG C/min
30~60 DEG C, and 5~30min is kept the temperature, it waits for that precast body expands to be formed and is completely filled in the carbon fiber of pyramid dot matrix sandwich plate hole
After dimension enhancing foamed aluminium, fibre reinforced foamed aluminium is cooled down by the way of impact jet flow, obtains fibre reinforced foamed aluminium-gold
Word tower sandwich plate composite construction.
Compared with prior art, the present invention at least has the advantages that：
A kind of fibre reinforced foamed aluminium-pyramid sandwich plate composite construction of the present invention, composite construction is by pyramid dot matrix
Core is filled in the carbon fiber in the hole of pyramid dot matrix core with pyramid dot matrix sandwich plate and intermittent made of panel
Dimension enhancing foamed aluminium composition, foamed aluminium is interior to be added with reinforced phase carbon fiber, and fibre reinforced foamed aluminium is pressed from both sides in pyramid dot matrix
Foam in place forms metallurgical bonding interface in laminate, so as to improve overall mechanical properties, obtains multi-functional fibre reinforced bubble
Foam aluminium-pyramid dot matrix sandwich plate, fibre reinforced foamed aluminium-pyramid dot matrix Sandwich compression peak strength is compared with foamed aluminium-gold
Word tower sandwich plate compression peaks intensity improves 15%, can highly desirable mitigate construction weight, improves explosion-proof surge guard
Can, and have the multi-functional characteristics such as heat-insulated, sound insulation, vibration damping.
The invention also discloses a kind of preparation methods of fibre reinforced foamed aluminium-pyramid sandwich plate composite construction, first
Pyramid dot matrix core is first made using molding or folding, and is connect with panel by the methods of soldering or Laser Welding, is made
For at pyramid dot matrix sandwich plate；Then by matrix powder, foaming agent and the carbon fiber with the coat of metal or recycling carbon fibre
Drying, is molded into preliminary embryo material through powder continuous extruding technology, is then squeezed into precast body after being mixed in a certain ratio uniformly；It will
Precast body is inserted in the hole of pyramid dot matrix sandwich plate；The pyramid dot matrix sandwich plate for being placed with precast body is finally placed in atmosphere
In stove, foam in place is kept the temperature after being heated to certain temperature, filling to be foamed finishes to be quickly cooled down using impact jet flow again, you can is obtained
Obtain fibre reinforced foamed aluminium-pyramid sandwich plate composite construction.The present invention realizes pyramid dot matrix core, panel and carbon fiber
The metallurgical connection for enhancing foamed aluminium, obtains fibre reinforced foamed aluminium-pyramid of higher intensity and higher energy absorbent properties
Sandwich plate composite construction.
Further, it using the method for powder metallurgy, foams to form the carbon fiber of metallurgical binding in dot matrix metal internal in-situ
Dimension enhancing foamed aluminium-pyramid sandwich plate, using the energy-absorbing of the excellent mechanical property of dot matrix metal and foamed aluminium, insulates against sound, subtracts
It shakes, heat-insulated advantage, realizes multi-functional coupling, obtain the more excellent structure-function integration material of comprehensive performance.Carbon fiber
Dimension or recycling carbon fibre can promote the plateau stress of foamed aluminium, the intensity and toughness of reinforcing material, and the energy for promoting material is inhaled
Receive performance.Metallurgical binding effectively increases interface bond strength so that the performance of composite construction is further promoted.Moreover,
The preparation method process of foam in place is more convenient for the production of scale, has lower cost.
Further, fiber can be reduced in carbon fiber or recycling carbon fibre copper coating to reunite, prevent fiber and aluminium base
Body, which reacts, generates brittle substance Al4C3, promote interface cohesion and composite material combination property.
Further, fiber can be reduced in carbon fiber or recycling carbon fibre plating nickel on surface to reunite, prevent fiber and aluminium base
Body, which reacts, generates brittle substance Al4C3, promote interfacial combined function and composite material comprehensive mechanical property.
Further, the technical pure aluminium powder that matrix powder is selected is common foamed aluminium matrix powder, and aluminum content is more than
99%；Alusil alloy powder (including AlSi6, AlSi7 or AlSi12) and Al alloy powder (including AlSi7Mg or AA6061) are in aluminium
Si and Mg elements are added in alloy powder, the mechanical property of basis material can be promoted, and then promote the synthesis of foamed aluminium material
Performance；The titantium hydride that foaming agent is selected can be generated hydrogen, be currently a kind of efficient foaming agent at high temperature with dehydrogenation.
Further, it is put into the atmosphere furnace that protective gas is nitrogen or argon gas and foams, matrix powder and oxygen can be prevented
The active gas such as gas react, and promote the Forming Quality of foamed aluminium material；Carbon fiber increasing is cooled down by the way of impact jet flow
Strong foamed aluminium can accelerate cooling procedure, prevent foam collapse, reduce the structural defect of foamed aluminium material.
In conclusion manufacturing process cost of the present invention is relatively low, it is easy to large-scale production, in security protection, communications and transportation, machine
The fields such as tool manufacture, aerospace are with a wide range of applications.
Below by drawings and examples, technical scheme of the present invention will be described in further detail.
Description of the drawings
Fig. 1 is the structural schematic diagram of fibre reinforced foamed aluminium-pyramid sandwich plate before present invention filling；
Fig. 2 is the structural schematic diagram of fibre reinforced foamed aluminium-pyramid sandwich plate after present invention filling.
Wherein：1. panel；2. pyramid dot matrix core；3. fibre reinforced foamed aluminium；4. reinforced phase carbon fiber.
Specific implementation mode
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
Can also be electrical connection to be mechanical connection；It can be directly connected, can also indirectly connected through an intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
Referring to Fig. 2, the present invention provides a kind of fibre reinforced foamed aluminium-pyramid sandwich plate composite construction, this is multiple
It includes panel 1 and pyramid dot matrix core 2 to close structure, and the setting of pyramid dot matrix core 2 constitutes pyramid between two panels 1
Dot matrix sandwich plate, intermittent is filled with fibre reinforced foamed aluminium 3, fibre reinforced in the hole of pyramid dot matrix core 2
Reinforced phase carbon fiber 4 is added in foamed aluminium 3.
The relative density of pyramid dot matrix core 2 is 0.01~0.15, the density of fibre reinforced foamed aluminium 3 is 0.1~
1.1g/cm3, porosity is 60~95%.
A kind of preparation method of fibre reinforced foamed aluminium-pyramid sandwich plate composite construction of the present invention, prepares gold first
Word tower lattice core；Pyramid dot matrix sandwich plate is made in pyramid dot matrix core and panel welding；By matrix powder, foaming agent
With with the coat of metal carbon fiber or recycling carbon fibre be mixed and stirred for uniformly；Then, the powder mixed is put into mold
In be molded into preliminary embryo material, then be squeezed into expandable precast body, pressed expandable precast body then inserted into pyramid point
In battle array sandwich plate, it is put into atmosphere furnace and foams；Finally heated and heat preservation is expanded to be formed to precast body and is completely filled in pyramid point
After the fibre reinforced foamed aluminium of battle array sandwich plate hole, it is multiple to be quickly cooled down to obtain fibre reinforced foamed aluminium-pyramid sandwich plate
Close structure.
It is as follows：
S1, punching rhombus net or the stretching nets of smooth mistake are formed into pyramid dot matrix core 2 using molding or folding,
Then panel 1 and pyramid dot matrix core 2 are degreased and rusty stain using metal cleaner cleaning, using soldering or Laser Welding
Panel 1 is connect with pyramid dot matrix core 2, pyramid dot matrix sandwich plate is made；
The material of punching rhombus net, the stretching nets of smooth mistake and panel is stainless steel or titanium alloy.
S2, using galvanoplastic, 20~40min will be heated in air atmosphere of the carbon fibre precursor at 350~450 DEG C, so
It immerses afterwards in the nitric acid of mass concentration 20~40% and boils 10~30min, then rinsed to neutrality with sub- water of leaving away；For regenerative carbon
Fiber can save above-mentioned steps, clean in deionized water；Be put into electroplate liquid and carry out electro-deposition, in carbon fiber or
Last layer metallic copper or metallic nickel are plated in recycling carbon fibre surface, carbon fiber or recycling carbon fibre long filament are then cut into 2 again~
The chopped carbon fiber of 4mm；
Galvanoplastic are in the technological parameter of carbon fiber or recycling carbon fibre copper coating：
Electroplating bath components are CuSO460~180g/L, H2SO4120~180g/L；Additive component is 2- sulfydryl benzos
Imidazoles (M) 0.1~0.3g/L, ethylene thiourea (N) 0.2~0.4g/L, sodium polydithio-dipropyl sulfonate (SP) 5~8g/L, methyl
Indigo plant 0.3~0.6g/L, OP-10 emulsifier 30~50g/L additives；Additive amount is 1~5ml/L, temperature of electroplating solution 12
~20 DEG C, voltage is 1~2V, and electroplating time is 4~10min.
Galvanoplastic are in the technological parameter of carbon fiber or recycling carbon fibre plating nickel on surface：
Electroplating bath components are NiSO4300~400g/L, H3BO335~45g/L；Additive component be NaCl 90~
110g/L, 1~3g/L of benzene sulfonic acid sodium salt, 1~3g/L of lauryl sodium sulfate, 0.2~0.6g/L of lignocaine pentyne glycol；Addition
Agent dosage is 40~60ml/L, and temperature of electroplating solution is 12~20 DEG C, and current density is 0.2~0.4A/dm2, electroplating time be 3~
7min。
The carbon fiber that galvanoplastic are selected is carbon fiber or recycling carbon fibre, and carbon fiber machinery is chopped after the completion of plating and grows up
Spend the chopped carbon fiber of 2~4mm.
S3, matrix powder and foaming agent are put into 1~3h of mixing in planetary ball mill, quality point is then added in batch mixing
The carbon fiber or recycling carbon fibre with the coat of metal that number is 1~10%；Use purity be 95% or more industrial alcohol as
Carbon fiber dispersant, in every 100g mixtures be added 20~50ml alcohol, mechanical agitation is uniform, mixing time be 10~
20min, mixing speed are 500~1000r/min；The mixture stirred evenly is put into vacuum dryer, and drying temperature is 80~
120 DEG C, vacuum degree is 10~100Pa, and drying time is 10~20min.
Wherein, the mass ratio of matrix powder and foaming agent is (98~99.8):(0.2~2)；Matrix powder is commercial-purity aluminium
Powder, alusil alloy powder or Al alloy powder, matrix powder granularity are 40~150 μm；Alusil alloy powder be specially AlSi6, AlSi7 or
AlSi12；Al alloy powder is specially AlSi7Mg or AA6061；Foaming agent is titantium hydride, and granularity is 50~200 μm.
It when matrix powder is technical pure aluminium powder, is heated between 690~730 DEG C, when matrix powder is AlSi6, is heated to
Between 610~650 DEG C, when matrix powder is AlSi7, it is heated between 610~650 DEG C, when matrix powder is AlSi12, heating
To between 610~660 DEG C, when matrix powder is AlSi7Mg, 610~650 DEG C are heated to, matrix powder heats when being AA6061
To between 650~710 DEG C.
S4, using powder continuous extruding technology, control extrusion ratio is more than 10, and the powder mixed is put into mold and is molded into
Preliminary embryo material, then the blank is squeezed into expandable precast body；
The shape of expandable precast body obtained by powder continuous extruding technology is threadiness, and compactness is not less than 99%, molding pressure
It is 150~350MPa by force；Expandable precast body needs before being received in pyramid dot matrix sandwich plate by pyramid dot matrix interlayer
Plate carries out soda acid with expandable precast body and washes to remove its surface film oxide and drying.
S5, it is put into atmosphere furnace and foams after inserting expandable precast body in pyramid dot matrix sandwich plate；With 30~120
DEG C/temperature is increased to 30~60 DEG C of the fusing point of matrix powder or more from room temperature, and keeps the temperature 5~30min by the heating speed of min,
After precast body expands and to be formed and be completely filled in the fibre reinforced foamed aluminium 3 of pyramid dot matrix sandwich plate hole, using impact
The mode of jet stream cools down fibre reinforced foamed aluminium, obtains fibre reinforced foamed aluminium-pyramid sandwich plate composite construction.
Protective gas in atmosphere furnace is nitrogen or argon gas.
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being described and shown in usually here in attached drawing is real
Applying the component of example can be arranged and be designed by a variety of different configurations.Therefore, the present invention to providing in the accompanying drawings below
The detailed description of embodiment be not intended to limit the range of claimed invention, but be merely representative of the selected of the present invention
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without creative efforts
The every other embodiment obtained, shall fall within the protection scope of the present invention.
It please refers to Fig.1 and Fig. 2, specific embodiment is as follows：
Embodiment 1
(1) 316 stainless steel rhombus nets of punching are formed into pyramid dot matrix core 2 using mould pressing technology, then not by 316
Rust steel facing 1 and pyramid dot matrix core 2 are degreased and rusty stain using metal cleaner cleaning, using soldering by panel 1 with
Pyramid dot matrix sandwich plate is made in the connection of pyramid dot matrix core 2；
(2) galvanoplastic are used, 20min will be heated in air atmosphere of the carbon fibre precursor at 350 DEG C, be then immersed in quality
10min is boiled in the nitric acid of concentration 20%, then is rinsed to neutrality with sub- water of leaving away, and is put into electroplate liquid and is carried out electro-deposition, in carbon
Fiber surface plates last layer metallic copper, then carbon fiber filament is cut into the chopped carbon fiber of 2~4mm；
(3) technological parameter of carbon fiber surface electro-coppering is：Electroplating bath components are CuSO460g/L, H2SO4120g/L；
Additive component is 2-mercaptobenzimidazole (M) 0.2g/L, ethylene thiourea (N) 0.3g/L, sodium polydithio-dipropyl sulfonate (SP)
6g/L, methyl blue 0.3g/L, OP-10 emulsifier 30g/L additives；Additive amount is 2ml/L, and temperature of electroplating solution is 12 DEG C,
Voltage is 1V, electroplating time 4min；
(4) matrix powder is technical pure aluminium powder, and foaming agent is titanium hydride powders, and the mass ratio of matrix powder and foaming agent is
98:2；The two is put into planetary ball mill and mixes 1h, the copper carbon fiber that mass fraction is 1% is then added in batch mixing；
It uses the industrial alcohol that purity is 95% as carbon fiber dispersant, 20ml alcohol, mechanical agitation is added in every 100g mixtures
Uniformly, mixing time 10min, mixing speed 500r/min；The mixture stirred evenly is put into vacuum dryer, drying temperature
Degree is 100 DEG C, and vacuum degree is 10~100Pa, drying time 20min；
(5) powder mixed to be injected in molding die, is molded into the preliminary blank of Φ 8mm, compactness is more than 99%,
The preliminary blank of acquisition is put into extrusion die again, control extrusion ratio is 12, be pressurized to 150MPa be squeezed into it is linear expandable
Precast body；
(6) pyramid dot matrix sandwich plate and expandable precast body soda acid is carried out to wash to remove its surface film oxide, it is dry
Afterwards, expandable precast body is inserted in pyramid dot matrix sandwich plate, and is put into togerther in the atmosphere furnace that protective gas is nitrogen and sends out
Bubble；
(7) furnace temperature is increased to 730 DEG C from room temperature with the heating speed of 120 DEG C/min, and keeps the temperature 12min.Wait for precast body
Expansion is formed and is completely filled with after the fibre reinforced foamed aluminium 3 of pyramid dot matrix sandwich plate hole, using the side of impact jet flow
Formula is quickly cooled down to get to fibre reinforced foamed aluminium-pyramid sandwich plate.
Wherein the relative density of pyramid dot matrix is 0.01~0.15, and fibre reinforced foam density is 0.1~1.1g/
cm3, porosity is 60~95%.
Embodiment 2
(1) 316 stainless steel plate mesh of smooth mistake are formed into pyramid dot matrix core 2 using folding, then not by 316
Rust steel facing 1 and pyramid dot matrix core 2 are degreased and rusty stain using metal cleaner cleaning, using Laser Welding by panel 1
It is connect with pyramid dot matrix core 2 and pyramid dot matrix sandwich plate is made；
(2) galvanoplastic are used, 40min will be heated in air atmosphere of the carbon fibre precursor at 450 DEG C, be then immersed in quality
30min is boiled in the nitric acid of concentration 30%, then is rinsed to neutrality with sub- water of leaving away, and is put into electroplate liquid and is carried out electro-deposition, in carbon
Fiber surface plates last layer metallic nickel, then carbon fiber filament is cut into the chopped carbon fiber of 2~4mm.
(3) technological parameter of carbon fiber surface electronickelling is：Plating solution composition is NiSO4300g/L, H3BO335g/L；Add
It is NaCl 90g/L, benzene sulfonic acid sodium salt 1.5g/L, lauryl sodium sulfate 1g/L, lignocaine pentyne glycol 0.4g/ to add agent ingredient
L；Additive amount is 40ml/L, and temperature of electroplating solution is 12 DEG C, current density 0.4A/dm2, electroplating time 3min.
(4) matrix powder is technical pure aluminium powder, and foaming agent is titanium hydride powders, and the mass ratio of matrix powder and foaming agent is
98.8:1.2；The two is put into planetary ball mill and mixes 3h, the nickel-plated carbon that mass fraction is 10% is then added in batch mixing
Fiber；It uses the industrial alcohol that purity is 95% as carbon fiber dispersant, 50ml alcohol, machinery is added in every 100g mixtures
It stirs evenly, mixing time 20min, mixing speed 700r/min；The mixture stirred evenly is put into vacuum dryer, dries
Dry temperature is 120 DEG C, and vacuum degree is 10~100Pa, drying time 12min.
(5) powder mixed to be injected in molding die, is molded into the preliminary blank of Φ 8mm, compactness is more than 99%,
The preliminary blank of acquisition is put into extrusion die again, control extrusion ratio is 13, be pressurized to 250MPa be squeezed into it is linear expandable
Precast body.
(6) pyramid dot matrix sandwich plate and expandable precast body soda acid is carried out to wash to remove its surface film oxide, it is dry
Afterwards, expandable precast body is inserted in pyramid dot matrix sandwich plate, and is put into togerther in the atmosphere furnace that protective gas is argon gas and sends out
Bubble.
(7) furnace temperature is increased to 710 DEG C from room temperature with the heating speed of 60 DEG C/min, and keeps the temperature 15min.Wait for that precast body is swollen
Bulging is at being completely filled with after the fibre reinforced foamed aluminium 3 of pyramid dot matrix sandwich plate hole, by the way of impact jet flow
It is quickly cooled down to get to fibre reinforced foamed aluminium-pyramid sandwich plate.
Wherein the relative density of pyramid dot matrix core be 0.01~0.15, fibre reinforced foam density be 0.1~
1.1g/cm3, porosity is 60~95%.
Embodiment 3
(1) the TC4 titanium alloy expanded metals of smooth mistake is formed into pyramid dot matrix core 2 using folding, then by TC4 titaniums
Alloy panel 1 and pyramid dot matrix core 2 are degreased using metal cleaner cleaning and rusty stain, using Laser Welding by panel 1
It is connect with pyramid dot matrix core 2 and pyramid dot matrix sandwich plate is made；
(2) galvanoplastic are used, recycling carbon fibre precursor water of leaving away is rinsed to neutrality, is put into electroplate liquid and carries out electricity
Deposition plates last layer metallic copper on recycling carbon fibre surface, then recycling carbon fibre long filament is cut into the chopped carbon fiber of 2~4mm.
(3) technological parameter of recycling carbon fibre electroplating surface copper is：Electroplating bath components are CuSO4180g/L, H2SO4
160g/L；Additive component is 2-mercaptobenzimidazole (M) 0.1g/L, ethylene thiourea (N) 0.2g/L, polydithio-dipropyl sulfonic acid
Sodium (SP) 8g/L, methyl blue 0.6g/L, OP-10 emulsifier 40g/L additives；Additive amount is 1ml/L, and temperature of electroplating solution is
18 DEG C, voltage 2V, electroplating time 8min.
(4) matrix powder is AlSi6, and foaming agent is titanium hydride powders, and the mass ratio of matrix powder and foaming agent is 99:1；
The two is put into planetary ball mill and mixes 2h, the copper facing recycling carbon fibre that mass fraction is 6% is then added in batch mixing；With
40ml alcohol is added as recycling carbon fibre dispersant in the industrial alcohol that purity is 98% in every 100g mixtures, and machinery stirs
It mixes uniformly, mixing time 15min, mixing speed 600r/min；The mixture stirred evenly is put into vacuum dryer, drying
Temperature is 85 DEG C, and vacuum degree is 10~100Pa, drying time 10min.
(5) powder mixed to be injected in molding die, is molded into the preliminary blank of Φ 8mm, compactness is more than 99%,
The preliminary blank of acquisition is put into extrusion die again, control extrusion ratio is 13, be pressurized to 300MPa be squeezed into it is linear expandable
Precast body.
(6) pyramid dot matrix sandwich plate and expandable precast body soda acid is carried out to wash to remove its surface film oxide, it is dry
Afterwards, expandable precast body is inserted in pyramid dot matrix sandwich plate, and is put into togerther in the atmosphere furnace that protective gas is nitrogen and sends out
Bubble.
(7) furnace temperature is increased to 650 DEG C from room temperature with the heating speed of 90 DEG C/min, and keeps the temperature 30min.Wait for that precast body is swollen
Bulging is quickly cooled down, i.e., at being completely filled with after the fibre reinforced foamed aluminium 3 of corrugated plating hole by the way of impact jet flow
Obtain fibre reinforced foamed aluminium-pyramid dot matrix sandwich plate.
Wherein the relative density of pyramid dot matrix core be 0.01~0.15, fibre reinforced foam density be 0.1~
1.1g/cm3, porosity is 60~95%.
Embodiment 4
(1) 304 stainless steel rhombus nets of punching are formed into pyramid dot matrix core 2 using mould pressing technology, then not by 304
Rust steel facing 1 and pyramid dot matrix core 2 are degreased and rusty stain using metal cleaner cleaning, using soldering by panel 1 with
Pyramid dot matrix sandwich plate is made in the connection of pyramid dot matrix core 2；
(2) galvanoplastic are used, recycling carbon fibre precursor water of leaving away is rinsed to neutrality, is put into electroplate liquid and carries out electricity
Deposition plates last layer metallic nickel on recycling carbon fibre surface, then recycling carbon fibre long filament is cut into the chopped carbon fiber of 2~4mm.
(3) technological parameter of recycling carbon fibre electroplating nickel on surface is：Plating solution composition is NiSO4350g/L, H3BO3 40g/
L；Additive component is NaCl 100g/L, benzene sulfonic acid sodium salt 1g/L, lauryl sodium sulfate 2g/L, lignocaine pentyne glycol
0.2g/L；Additive amount is 50ml/L, and temperature of electroplating solution is 20 DEG C, current density 0.2A/dm2, electroplating time 7min.
(4) matrix powder is AlSi7, and foaming agent is titantium hydride, and the mass ratio of matrix powder and foaming agent is 99.2:0.8；
The two is put into planetary ball mill and mixes 2h, the nickel plating recycling carbon fibre that mass fraction is 5% is then added in batch mixing；With
40ml alcohol is added as recycling carbon fibre dispersant in the industrial alcohol that purity is 95% in every 100g mixtures, and machinery stirs
It mixes uniformly, mixing time 14min, mixing speed 800r/min；The mixture stirred evenly is put into vacuum dryer, drying
Temperature is 80 DEG C, and vacuum degree is 10~100Pa, drying time 12min.
(5) powder mixed to be injected in molding die, is molded into the preliminary blank of Φ 8mm, compactness is more than 99%,
The preliminary blank of acquisition is put into extrusion die again, control extrusion ratio is 11, be pressurized to 300MPa be squeezed into it is linear expandable
Precast body.
(6) pyramid dot matrix sandwich plate and expandable precast body soda acid is carried out to wash to remove its surface film oxide, it is dry
Afterwards, expandable precast body is inserted in pyramid dot matrix sandwich plate, and is put into togerther in the atmosphere furnace that protective gas is argon gas and sends out
Bubble.
(7) it will be increased to 640 DEG C from room temperature furnace temperature with the heating speed of 90 DEG C/min, and keeps the temperature 15min.Wait for that precast body is swollen
Bulging is at being completely filled with after the fibre reinforced foamed aluminium 3 of pyramid dot matrix sandwich plate hole, by the way of impact jet flow
It is quickly cooled down to get to fibre reinforced foamed aluminium-pyramid dot matrix sandwich plate.
Wherein the relative density of pyramid dot matrix core be 0.01~0.15, fibre reinforced foam density be 0.1~
1.1g/cm3, porosity is 60~95%.
Embodiment 5
(1) 316 stainless steel plate mesh of smooth mistake are formed into pyramid dot matrix core 2 using folding, then not by 316
Rust steel facing 1 and pyramid dot matrix core 2 are degreased and rusty stain using metal cleaner cleaning, using soldering by panel 1 with
Pyramid dot matrix sandwich plate is made in the connection of pyramid dot matrix core 2；
(2) galvanoplastic are used, 25min will be heated in air atmosphere of the carbon fibre precursor at 360 DEG C, be then immersed in quality
25min is boiled in the nitric acid of concentration 40%, then is rinsed to neutrality with sub- water of leaving away, and is put into electroplate liquid and is carried out electro-deposition, in carbon
Fiber surface plates last layer metallic copper, then carbon fiber filament is cut into the chopped carbon fiber of 2~4mm.
(3) technological parameter of carbon fiber surface electro-coppering is：Electroplating bath components are CuSO460g/L, H2SO4180g/L；
Additive component is 2-mercaptobenzimidazole (M) 0.3g/L, ethylene thiourea (N) 0.4g/L, sodium polydithio-dipropyl sulfonate (SP)
5g/L, methyl blue 0.3g/L, OP-10 emulsifier 50g/L additives；Additive amount is 5ml/L, and temperature of electroplating solution is 20 DEG C,
Voltage is 1.5V, electroplating time 10min.
(4) matrix powder is AA6061, and foaming agent is titantium hydride, and the mass ratio of matrix powder and foaming agent is 99.5:
0.5；The two is put into planetary ball mill and mixes 2h, the copper carbon fiber that mass fraction is 8% is then added in batch mixing；With
30ml alcohol is added as carbon fiber dispersant in the industrial alcohol that purity is 95% in every 100g mixtures, and mechanical agitation is equal
It is even, mixing time 12min, mixing speed 900r/min；The mixture stirred evenly is put into vacuum dryer, drying temperature
It it is 90 DEG C, vacuum degree is 10~100Pa, drying time 10min.
(5) powder mixed to be injected in molding die, is molded into the preliminary blank of Φ 8mm, compactness is more than 99%,
The preliminary blank of acquisition is put into extrusion die again, control extrusion ratio is 16, be pressurized to 300MPa be squeezed into it is linear expandable
Precast body.
(6) pyramid dot matrix sandwich plate and expandable precast body soda acid is carried out to wash to remove its surface film oxide, it is dry
Afterwards, expandable precast body is inserted in pyramid dot matrix sandwich plate, and is put into togerther in the atmosphere furnace that protective gas is nitrogen and sends out
Bubble.
(7) it will be increased to 680 DEG C from room temperature furnace temperature with the heating speed of 100 DEG C/min, and keeps the temperature 15min.Wait for precast body
Expansion is formed and is completely filled with after the fibre reinforced foamed aluminium 3 of pyramid dot matrix sandwich plate hole, using the side of impact jet flow
Formula is quickly cooled down to get to fibre reinforced foamed aluminium-pyramid dot matrix sandwich plate.
Wherein the relative density of pyramid dot matrix core be 0.01~0.15, fibre reinforced foam density be 0.1~
1.1g/cm3, porosity is 60~95%.
Embodiment 6
(1) 304 stainless steel plate mesh of smooth mistake are formed into pyramid dot matrix core 2 using folding, then not by 304
Rust steel facing 1 and pyramid dot matrix core 2 are degreased and rusty stain using metal cleaner cleaning, using soldering by panel 1 with
Pyramid dot matrix sandwich plate is made in the connection of pyramid dot matrix core 2；
(2) galvanoplastic are used, recycling carbon fibre precursor water of leaving away is rinsed to neutrality, is put into electroplate liquid and carries out electricity
Deposition plates last layer metallic nickel on recycling carbon fibre surface, then recycling carbon fibre long filament is cut into the chopped carbon fiber of required length
Dimension.
(3) technological parameter of recycling carbon fibre electroplating nickel on surface is：Plating solution composition is NiSO4400g/L, H3BO3 45g/
L；Additive component is NaCl 110g/L, benzene sulfonic acid sodium salt 3g/L, lauryl sodium sulfate 3g/L, lignocaine pentyne glycol
0.6g/L；Additive amount is 60ml/L, and temperature of electroplating solution is 14 DEG C, current density 0.3A/dm2, electroplating time 4min.
(4) matrix powder is AlSi7Mg, and foaming agent is titanium hydride powders, and the mass ratio of matrix powder and foaming agent is
99.8:0.2；The two is put into planetary ball mill and mixes 2h, the copper facing that mass fraction is 3% is then added in batch mixing and regenerates
Carbon fiber；It uses the industrial alcohol that purity is 95% as recycling carbon fibre dispersant, 25ml wine is added in every 100g mixtures
Essence, mechanical agitation is uniform, mixing time 12min, mixing speed 1000r/min；The mixture stirred evenly is put into vacuum
Dryer, drying temperature are 80 DEG C, and vacuum degree is 10~100Pa, drying time 18min.
(5) powder mixed to be injected in molding die, is molded into the preliminary blank of Φ 8mm, compactness is more than 99%,
The preliminary blank of acquisition is put into extrusion die again, control extrusion ratio is 18, be pressurized to 350MPa be squeezed into it is linear expandable
Precast body.
(6) pyramid dot matrix sandwich plate and expandable precast body soda acid is carried out to wash to remove its surface film oxide, it is dry
Afterwards, expandable precast body is inserted in pyramid dot matrix sandwich plate, and is put into togerther in the atmosphere furnace that protective gas is argon gas and sends out
Bubble.
(7) furnace temperature is increased to 650 DEG C from room temperature with the heating speed of 30 DEG C/min, and keeps the temperature 5min.Wait for that precast body is swollen
Bulging is at being completely filled with after the fibre reinforced foamed aluminium 3 of pyramid dot matrix sandwich plate hole, by the way of impact jet flow
It is quickly cooled down to get to fibre reinforced foamed aluminium-pyramid dot matrix sandwich plate.
Wherein the relative density of pyramid dot matrix core be 0.01~0.15, fibre reinforced foam density be 0.1~
1.1g/cm3, porosity is 60~95%.
The method that the present invention uses powder metallurgy, foams to form the carbon of metallurgical binding in pyramid dot matrix core internal in-situ
Fiber enhanced foam aluminium-pyramid sandwich plate composite construction is increased using the excellent mechanical property of pyramid dot matrix and carbon fiber
The advantages such as energy-absorbing, sound insulation, the heat-insulated, electromagnetic shielding of strong foamed aluminium, realize multi-functional coupling, it is more excellent to obtain comprehensive performance
Structure-function integration material.
Carbon fiber is a kind of good fibrous material, has many excellent performances, as specific strength is high, specific modulus is high, resistance to
High temperature, corrosion-resistant etc..Carbon fiber powers on plated with copper or nickel can reduce fiber reunion, prevents fiber and aluminum substrate from reacting life
At brittle substance, interface cohesion and composite property are promoted.Carbon fiber or recycling carbon fibre with the coat of metal introduce bubble
The preparation of foam aluminum material, has not only acted as the effect of stable bubble, and has been obviously improved material property, such as compression strength, energy
Amount absorption, damping capacity and hole wall toughness etc..Metallurgical binding effectively increases interface bond strength so that the performance of composite construction
Further promoted.The use of recycling carbon fibre can not only improve landfill and discard land resource caused by carbon fibre material
Waste problem, and can preserve the ecological environment.
The above content is merely illustrative of the invention's technical idea, and protection scope of the present invention cannot be limited with this, every to press
According to technological thought proposed by the present invention, any change done on the basis of technical solution each falls within claims of the present invention
Protection domain within.
Claims (10)
1. a kind of fibre reinforced foamed aluminium-pyramid sandwich plate composite construction, which is characterized in that including panel (1) and golden word
Tower lattice core (2), it is compound that composition pyramid dot matrix sandwich plate is arranged between two panels (1) in pyramid dot matrix core (2)
Structure, intermittent is filled with fibre reinforced foamed aluminium (3), fibre reinforced bubble in the hole of pyramid dot matrix core (2)
Reinforced phase carbon fiber (4) is added in foam aluminium (3), the relative density of pyramid dot matrix core (2) is 0.01~0.15, carbon fiber
The density for enhancing foamed aluminium (3) is 0.1~1.1g/cm3, porosity is 60~95%.
2. a kind of preparation method of fibre reinforced foamed aluminium-pyramid sandwich plate composite construction, which is characterized in that prepare first
Pyramid dot matrix core (2)；Pyramid dot matrix sandwich plate is made in pyramid dot matrix core (2) and panel (1) welding；Then will
Matrix powder, foaming agent and carbon fiber with the coat of metal or recycling carbon fibre are mixed and stirred for uniformly, the powder that will be mixed
Material, which is put into mold, is molded into preliminary embryo material, then is squeezed into expandable precast body, then fills out pressed expandable precast body
Enter in pyramid dot matrix sandwich plate, is put into atmosphere furnace and foams；Finally heated and heat preservation is expanded to be formed to precast body and is completely filled with
Fibre reinforced foamed aluminium-pyramid interlayer is obtained in the fibre reinforced foamed aluminium postcooling of pyramid dot matrix sandwich plate hole
Plate composite construction.
3. a kind of preparation method of fibre reinforced foamed aluminium-pyramid sandwich plate composite construction according to claim 2,
It is characterized in that, punching rhombus net or the stretching nets of smooth mistake are formed pyramid dot matrix core using molding or folding
(2), then panel (1) and pyramid dot matrix core (2) are degreased and rusty stain using metal cleaner cleaning, using soldering
Or panel (1) connect with pyramid dot matrix core (2) and pyramid dot matrix sandwich plate is made by Laser Welding.
4. a kind of preparation method of fibre reinforced foamed aluminium-pyramid sandwich plate composite construction according to claim 2,
It is characterized in that, preparing for carbon fiber or recycling carbon fibre with the coat of metal is as follows：
20~40min will be heated in air atmosphere of the carbon fibre precursor at 350~450 DEG C, be then immersed in matter using galvanoplastic
It measures in the nitric acid of concentration 20~40% and boils 10~30min, then rinsed to neutrality with sub- water of leaving away；It is put into electroplate liquid and carries out electricity
Deposition, in carbon fiber or recycling carbon fibre surface plating last layer metallic copper or metallic nickel, then again by carbon fiber or regenerative carbon
Fiber filament is cut into the chopped carbon fiber of 2~4mm.
5. a kind of preparation method of fibre reinforced foamed aluminium-pyramid sandwich plate composite construction according to claim 4,
It is characterized in that, galvanoplastic are specially in the technique of carbon fiber or recycling carbon fibre copper coating：
Electroplating bath components are CuSO460~180g/L, H2SO4120~180g/L；Additive component is 2-mercaptobenzimidazole
0.1~0.3g/L, 0.2~0.4g/L of ethylene thiourea, 5~8g/L of sodium polydithio-dipropyl sulfonate, 0.3~0.6g/L of methyl blue,
30~50g/L of OP-10 emulsifiers；Wherein, additive amount be 1~5ml/L, temperature of electroplating solution be 12~20 DEG C, voltage be 1~
2V, electroplating time are 4~10min.
6. a kind of preparation method of fibre reinforced foamed aluminium-pyramid sandwich plate composite construction according to claim 4,
It is characterized in that, galvanoplastic are specially in the technique of carbon fiber or recycling carbon fibre plating nickel on surface：
Electroplating bath components are NiSO4300~400g/L, H3BO335~45g/L；Additive component is 90~110g/L of NaCl,
1~3g/L of benzene sulfonic acid sodium salt, 1~3g/L of lauryl sodium sulfate, 0.2~0.6g/L of lignocaine pentyne glycol；Additive amount
For 40~60ml/L, temperature of electroplating solution is 12~20 DEG C, and current density is 0.2~0.4A/dm2, electroplating time is 3~7min.
7. a kind of preparation method of fibre reinforced foamed aluminium-pyramid sandwich plate composite construction according to claim 2,
It is characterized in that, being (98~99.8) by mass ratio:The matrix powder and foaming agent of (0.2~2) are put into planetary ball mill and mix
1~3h is closed, the carbon fiber or recycling carbon fibre with the coat of metal that mass fraction is 1~10% are then added in batch mixing；
It uses the industrial alcohol that purity is 95% or more as carbon fiber dispersant, 20~50ml alcohol is added in every 100g mixtures,
Mechanical agitation is uniform, and mixing time is 10~20min, and mixing speed is 500~1000r/min；The mixture stirred evenly is put
Enter vacuum dryer, drying temperature is 80~120 DEG C, and vacuum degree is 10~100Pa, and drying time is 10~20min.
8. a kind of preparation method of fibre reinforced foamed aluminium-pyramid sandwich plate composite construction according to claim 7,
It is characterized in that, matrix powder is technical pure aluminium powder, alusil alloy powder or Al alloy powder, the granularity of matrix powder is 40~150 μ
m；Alusil alloy powder is AlSi6, AlSi7 or AlSi12；Al alloy powder is AlSi7Mg or AA6061；Foaming agent is titantium hydride, grain
Degree is 50~200 μm；
When matrix powder is technical pure aluminium powder, heating temperature is 690~730 DEG C, and when matrix powder is AlSi6, heating temperature is
610~650 DEG C, when matrix powder is AlSi7, heating temperature is 610~650 DEG C, when matrix powder is AlSi12, heating temperature
It is 610~660 DEG C, when matrix powder is AlSi7Mg, heating temperature is 610~650 DEG C, when matrix powder is AA6061, heating
Temperature is 650~710 DEG C.
9. a kind of preparation method of fibre reinforced foamed aluminium-pyramid sandwich plate composite construction according to claim 2,
It is characterized in that, using powder continuous extruding technology, control extrusion ratio is more than 10, and the powder mixed is put into mold and is molded into
Preliminary embryo material, control molding pressure is 150~350MPa, then the blank is squeezed into threadiness of the compactness not less than 99% can
Foaming precursor；Finally soda acid is carried out to expandable precast body and pyramid dot matrix sandwich plate to wash to remove its surface film oxide
And it is dry.
10. a kind of preparation side of fibre reinforced foamed aluminium-pyramid sandwich plate composite construction according to claim 2
Method, which is characterized in that it is nitrogen or argon gas that protective gas is put into after inserting expandable precast body in pyramid dot matrix sandwich plate
Atmosphere furnace in foam；Temperature is increased to the fusing point of matrix powder or more from room temperature with the heating speed of 30~120 DEG C/min
30~60 DEG C, and 5~30min is kept the temperature, it waits for that precast body expands to be formed and is completely filled in the carbon fiber of pyramid dot matrix sandwich plate hole
After dimension enhancing foamed aluminium, fibre reinforced foamed aluminium is cooled down by the way of impact jet flow, obtains fibre reinforced foamed aluminium-gold
Word tower sandwich plate composite construction.
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| CN111805170A (en) * | 2020-05-27 | 2020-10-23 | 南京航空航天大学 | Method for forming hollow lattice structure with built-in foamed aluminum |
| CN112517910A (en) * | 2020-11-13 | 2021-03-19 | 西安理工大学 | Method for improving strength of high-porosity layered porous titanium and titanium alloy |
| CN114571744A (en) * | 2022-04-21 | 2022-06-03 | 内蒙古工业大学 | Fiber preform reinforced resin rubber ternary composite material and preparation method and application thereof |
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