CN107841660B - Graphene reinforced aluminum matrix composites and preparation method thereof - Google Patents
Graphene reinforced aluminum matrix composites and preparation method thereof Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/026—Alloys based on aluminium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/10—Alloys containing non-metals
- C22C1/1036—Alloys containing non-metals starting from a melt
- C22C1/1042—Alloys containing non-metals starting from a melt by atomising
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/10—Alloys containing non-metals
- C22C1/1036—Alloys containing non-metals starting from a melt
- C22C1/1047—Alloys containing non-metals starting from a melt by mixing and casting liquid metal matrix composites
Abstract
The present invention relates to a kind of graphene reinforced aluminum matrix composites and preparation method thereof, belong to technical field of metal material.Its formula is as follows: graphene 0.02%~1%, silicon 0.03%~0.08%, iron 0.04%~0.15%, impurity element≤0.05%, surplus are aluminium；Successively receive by aluminium ingot fusing, aluminum anodizing, molten aluminum heat preservation standing, molten aluminum filtering, jet deposition (graphene addition), continuous casting, continuous rolling and molding around preparation.Preparation method simple possible provided by the invention, step is easily operated, and the product of preparation has the advantages that Material texture is uniform, and compact structure, intensity is high, light-weight, electrical and thermal conductivity performance is good；Device performance for producing graphene reinforced aluminum matrix composites is reliable, easy to use, it can be achieved that continuous production.
Description
Technical field
The present invention relates to a kind of graphene reinforced aluminum matrix composites and preparation method thereof, belong to metal material technology neck
Domain.
Background technique
In recent years with the appearance of graphene, researcher has found that graphene compared with carbon fiber and carbon nanotube, has more
High intensity, higher modulus, bigger specific surface area and better extension property, this makes graphene enhancing aluminum-base nano multiple
Condensation material becomes the new material of great researching value and application prospect, especially in automobile, aerospace and transmission of electricity transmission field
Development, especially radiate etc. in adverse circumstances in high vacuum, dense ionization to the specific strength of aluminum matrix composite, specific modulus, resistance to
The performance requirements such as corrosion, conductive and heat-conductive are higher, and traditional ceramic fibre and reinforced particulate are no longer satisfied requirement.Compared to
Ceramic fibre reinforcement.Carbonaceous reinforcement is because of high thermal conductivity, low thermal expansion coefficient, excellent damping capacity and very good
Self-lubricating property cause the extensive concern of many researchers.
Graphene is that a kind of to form hexangle type by carbon atom with sp2 hybridized orbit be in the single flat that is arranged to make up of honeycomb lattice
Face film, single-layer graphene yield is seldom, and expensive.Currently, be generally industrially 2 layers and 3 layers using graphene, or even
The graphene of carbon atom thickness within 10 layers, it may have special physical property.
It is also largely studied in terms of graphene reinforced aluminum matrix composites the country.Such as Chinese patent CN
201510553225.4 schemes are used adds graphene and alloying element in molten aluminum, then makes graphene and aluminium by mechanical stirring
After liquid mixing, roll forming device.CN201510388355.7 scheme, which is used, passes through machinery in Al alloy powder and graphene powder
The form that the techniques such as mixing, low temperature ball milling form graphene/aluminum excellent intermediate alloy is added in the molten aluminum of melting.Adopt these solutions
Certainly in scheme, production technology is complicated, and cannot preferably by graphene uniform be distributed in aluminum substrate, it is difficult to ensure that graphene
The performance of reinforced aluminum matrix composites is uniform.
Summary of the invention
The preparation method and its preparation being uniformly added in aluminum substrate the purpose of the present invention is to solve grapheme material
Device provides and a kind of prepares simple, easily operated graphene reinforced aluminum matrix composites and preparation method thereof.
Technical solution of the present invention, graphene reinforced aluminum matrix composites are formulated as follows: graphene by mass percentage
0.02%~1%, silicon 0.03%~0.08%, iron 0.04%~0.15%, impurity element≤0.05%, surplus is aluminium.
The preparation method of the graphene reinforced aluminum matrix composites, steps are as follows:
(1) aluminium ingot is selected, adds it in aluminium melting furnace and is melted, the molten aluminum of fusing injects refining furnace through flow-conveying groove,
After the molten aluminum of refining furnace reaches sets requirement, stops molten aluminum injection, when molten aluminum is warming up to 750~780 DEG C, bring essence into nitrogen
Refining agent molten aluminum is refined, refining band slag tap ash clawed by skimming gate using tool；
(2) molten aluminum handled well is injected into holding furnace by chute, the temperature of aluminum liquid of holding furnace is heated up to 820~850
DEG C, stand 20~30min；
(3) by the molten aluminum after standing after chute injection Rose Box filtering, molten aluminum is again through chute injecting jet atomising device
Molten aluminum contain collection room, molten aluminum contain collection room temperature of aluminum liquid control at 810~840 DEG C；The spray gun for opening jet atomization device, is passed through
The inert gas of 0.5~0.8MPa of pressure, molten aluminum are atomized by spray gun, control the flow-rate ratio of molten aluminum and inert gas in spray gun,
It is 280~350 Grams Per Seconds by nozzle molten aluminum flow, inert gas flow is 800~1500 cubic millimeters/second, keeps molten aluminum drop straight
Diameter is controlled at 10~100 μm；
(4) after molten aluminum drop adjustment is suitable, graphene adding set is opened, according to graphene reinforced aluminum matrix composites
The requirement of graphene content ratio, according to the injection graphene platelet of molten aluminum flow continuous and quantitative, the graphene platelet of injection passes through
The inert gas of 80~100KPa of pressure sends graphene platelet in spray deposition room forth from catheter nozzle；Graphene is thin
Injection rate is matched with liquid mist molten aluminum flow speed, and the mass percent of the graphene in black alkene reinforced aluminum matrix composites is made to exist
Between 0.02%~1%；
(5) graphene platelet floated covers in the molten aluminum drop of sinking, deposits to the conical funnel of settling chamber bottom
In, there is heating element outside conical funnel, the temperature of deposit is controlled between 650~710 DEG C, forms liquid or fritting
The aluminium of state/graphene mixture, aluminium/graphene mixture inject ingot casting shaping device by conical funnel；
(6) nitrogen of spray deposition room is blown into through spray deposition room to air draft pressure-reducing chamber from the unidirectional of air draft pressure-reducing chamber bottom
Automatic discharging pressure valve excludes；
(7) open ingot casting shaping device, regulate cooling system, make continuous casting temperature control 400~500 DEG C it
Between；
(8) graphene aluminium ingot casting is introduced into rolling equipment, continuous rolling is at required profile；
(9) graphene aluminum profile is received by receiving around equipment around packing.
The spray gun of jet atomization device described in step (3) is 2~7, is evenly arranged on spray deposition ceiling portion.
The high pure nitrogen or other performances that inert gas in step (3), (4) is nitrogenous 99.99% or more are similar lazy
Property gas.
The nozzle of graphene adding set described in step (4) is 2~6, is evenly arranged on settling chamber middle and lower part.
The graphene platelet be 8 layers of thickness and within carbon atom thickness graphene platelet.
The jet atomization apparatus structure that step (3) uses is as follows: containing collection room, molten aluminum addition dress including vessel, molten aluminum
It sets, graphene adding set and unidirectional exhaust valve；Molten aluminum adding set is equipped with above the vessel, two sides are equipped with graphene
Adding set, molten aluminum adding set are contained collection room with molten aluminum and are connected to；
The vessel is divided into spray deposition room and air draft pressure-reducing chamber, and the spray deposition room is internally positioned, and air draft subtracts
Pressure chamber is located at spray deposition outdoor, interconnects at the top of spray deposition room and air draft pressure-reducing chamber；It presents the spray deposition room
Narrow funnel-form under width；Bottom is in communication with the outside.
Air draft pressure-reducing chamber bottom is equipped with unidirectional exhaust valve.
Spray deposition room lower end is additionally provided with heating element.The heating element is specially heating wire or electrical bar.
The molten aluminum adding set is atomizing lance.
The graphene adding set is the spraying equipment that can control graphene flow velocity.
Beneficial effects of the present invention: preparation method simple possible provided by the invention, step is easily operated, the product of preparation
It is uniform to have Material texture, the advantages that compact structure, intensity is high, light-weight, and electrical and thermal conductivity performance is good；Increase for producing graphene
The device performance of strong aluminum matrix composite is reliable, easy to use, it can be achieved that continuous production.
Detailed description of the invention
Fig. 1 is process flow chart of the invention.
Fig. 2 apparatus of the present invention flow diagram.
Fig. 3 jet atomization apparatus structure schematic diagram of the present invention.
Description of symbols: 1, vessel；11, spray deposition room；12, air draft pressure-reducing chamber；2, molten aluminum contains collection room；3, aluminium
Liquid adding set；4, graphene adding set；5, unidirectional exhaust valve；6, heating element.
Specific embodiment
Below in conjunction with attached drawing, the invention will be further described.
Embodiment 1
As shown in figure 3, the jet atomization apparatus structure used is as follows: containing collection room 2 including vessel 1, molten aluminum, molten aluminum adds
Feeder apparatus 3, graphene adding set 4 and unidirectional exhaust valve 5；Molten aluminum adding set 3, two sides are equipped with above the vessel 1
Equipped with graphene adding set 4, molten aluminum adding set 3 is contained collection room 2 with molten aluminum and is connected to；
The vessel 1 divides for spray deposition room 11 and air draft pressure-reducing chamber 12, and the spray deposition room 11 is internally positioned,
Air draft pressure-reducing chamber 12 is located at outside spray deposition room 11, interconnects at the top of spray deposition room 11 and air draft pressure-reducing chamber 12；It is described
The funnel-form with a narrow upper and lower width of spray deposition room 11；Bottom is in communication with the outside.
12 bottom of air draft pressure-reducing chamber is equipped with unidirectional exhaust valve 5.
11 lower end of spray deposition room is additionally provided with heating element 6.The heating element 6 is specially heating wire or electric heating
Stick.
The molten aluminum adding set 3 is atomizing lance.
The graphene adding set 4 is the spraying equipment that can control graphene flow velocity.
Jet atomization device is equipped with the road 2-7 spray gun；The graphene adding set 4 is equipped with the road 2-6 nozzle, and it is heavy to be placed in atomization
Product 11 middle and lower part of room；11 bottom of spray deposition room is conical funnel shape, and port is connect with ingot casting shaping device；The row
Wind pressure-reducing chamber 12 is the cavity around spray deposition room 11, and nitrogen passes through unidirectional around the 11 periphery flowing of spray deposition room from bottom
Exhaust valve 5 excludes.
The ingot casting shaping device has one of circular ingot wheel, is provided on wheel and seeks the slot being consistent with designed size, casting
Ingot wheel is equipped with cooling system, leads to ingot casting wheel and rotates achievable continuous casting.The roller bundling device is by ingot rolling at the type of needs
Material.
Embodiment 2
It is as shown in Figure 1 the process flow chart of the preparation method of graphene reinforced aluminum matrix composites in the present invention, successively
It is stood by aluminium ingot fusing, aluminum anodizing, molten aluminum heat preservation, molten aluminum filtering, jet deposition (graphene addition), continuous casting, company
Continuous rolling and molding receive around.
It is illustrated in figure 2 the preparation facilities structural schematic diagram of graphene reinforced aluminum matrix composites in the present invention, comprising: molten
Aluminium furnace, holding furnace, Rose Box, jet atomization device, ingot casting shaping device, roll milling apparatus, receives winding apparatus at refining furnace；It is described molten
Aluminium furnace, refining furnace, holding furnace and Rose Box, are connected by chute.
Material selection: aluminium ingot selects the aluminium ingot of the Al 99.85 of 7000kg, the mass percent of each element in aluminium ingot are as follows:
Si-0.032%；Fe-0.05%；Other impurity level summations 0.028%, aluminium content 99.89%；Aluminium ingot cast-in aluminium melting furnace is melted
Change, the molten aluminum of fusing flows into refining furnace from aluminium melting furnace, and the temperature of molten aluminum is 750 DEG C in refining furnace, with nitrogenous 99.99% height
Pure nitrogen gas be carrier by 15kg high-efficiency refining agent (production of Xuzhou Tian Cheng Aluminum Co., Ltd) be blown into refine furnace bottom to molten aluminum into
Row refining, is clawed the dross on liquid level surface with slag-off machine after refining；Slag takes off after treatment and molten aluminum is injected holding furnace,
The temperature of aluminum liquid of holding furnace rises to 825 DEG C, stands 20min；Injecting jet atomising device after molten aluminum is filtered by Rose Box
Molten aluminum contains collection room, after the molten aluminum that molten aluminum contains collection room reaches predetermined interface, opens the spray gun of jet atomization device, is passed through pressure
The molten aluminum (820 DEG C of temperature) that molten aluminum contains collection room is passed through spray with the speed of 300g/s by the high pure nitrogen of 0.6MPa content 99.99%
Rifle atomization, 1000 cubic millimeters of speed of gun traffic inject nitrogen, by aluminium liquid-drop diameter at 10-100 μm；Graphite is opened after 5min
Alkene adding set, continuously sent forth from nozzle with the speed of 0.285g/s by the high pure nitrogen of pressure 100KPa content 99.99% to
In spray deposition room.Deposition of aluminum/graphene mixture injects ingot casting shaping device by the conical funnel of settling chamber bottom, sinks
Product aluminium/graphene mixture temperature is 650 DEG C, pours into section 2000mm2Trapezoidal ingot casting, and be rolled by 6 rolls
The graphene of thick 4mm, wide 60mm enhance aluminum-base composite band, and carry out take-up by receiving winding apparatus.
After graphene obtained enhancing aluminum-base composite band is placed 12h, detection graphene enhances the thermally conductive of aluminum-base composite band
268.6 ~ 283.6W/mk of coefficient；Conductivity 63.71% ~ 64.36% IACS, 278 ~ 294MPa of intensity, elongation at break 12.4%
~14.3%。
Embodiment 3
Material selection: aluminium ingot selects the aluminium ingot of the Al 99.70 of 8000kg, the mass percent of each element in aluminium ingot are as follows:
Si-0.073%；Fe-0.142%；Other impurity level summations 0.035%, aluminium content 99.75%；Aluminium ingot cast-in aluminium melting furnace is melted
Change, the molten aluminum of fusing flows into refining furnace from aluminium melting furnace, and the temperature of molten aluminum is 780 DEG C in refining furnace, with nitrogenous 99.99% height
Pure nitrogen gas be carrier by 16kg high-efficiency refining agent (production of Xuzhou Tian Cheng Aluminum Co., Ltd) be blown into refine furnace bottom to molten aluminum into
Row refining, is clawed the dross on liquid level surface with slag-off machine after refining；Slag takes off after treatment and molten aluminum is injected holding furnace,
The temperature of aluminum liquid of holding furnace rises to 847 DEG C, stands 30min；Injecting jet atomising device after molten aluminum is filtered by Rose Box
Molten aluminum contains collection room, after the molten aluminum that molten aluminum contains collection room reaches predetermined interface, opens the spray gun of jet atomization device, is passed through pressure
The molten aluminum (837 DEG C of temperature) that molten aluminum contains collection room is passed through spray with the speed of 325g/S by the high pure nitrogen of 0.8MPa content 99.99%
Rifle atomization, 1400 cubic millimeters of speed of gun traffic inject nitrogen, by aluminium liquid-drop diameter at 10-100 μm；Graphite is opened after 7min
Alkene adding set, continuously sent forth from nozzle with the speed of 0.068g/s by the high pure nitrogen of pressure 80KPa content 99.99% to
In spray deposition room.Deposition of aluminum/graphene mixture injects ingot casting shaping device by the conical funnel of settling chamber bottom, sinks
Product aluminium/graphene mixture temperature is 670 ~ 710 DEG C, pours into section 2000mm2Trapezoidal ingot casting, and rolled by 12 rolls
The graphene enhancing aluminum-base composite pole stock of diameter 9.55mm is made, and carries out take-up by receiving winding apparatus.
After graphene obtained is enhanced aluminum-base composite pole stock for 24 hours, detection graphene enhances the thermally conductive of aluminum-base composite pole stock
247.6 ~ 274.3W/mk of coefficient；Conductivity 62.62% ~ 63.43% IACS, 289 ~ 305MPa of intensity, elongation at break 11.7%
~13.5%.It is drawn into diameter 4.21mm aluminium single line the graphene of 9.55mm is enhanced aluminum-base composite pole stock by wire drawing machine, is passed through
Detect conductivity 62.12 ~ 62.76% IACS of aluminium alloy wire, 388 ~ 433MPa of intensity, elongation at break 4.22%.
Embodiment 4
Graphene reinforced aluminum matrix composites are formulated as follows: graphene 1%, silicon 0.03%, iron by mass percentage
0.1%, impurity element≤0.05%, surplus is aluminium.
The preparation method of the graphene reinforced aluminum matrix composites, steps are as follows:
(1) aluminium ingot is selected, adds it in aluminium melting furnace and is melted, the molten aluminum of fusing injects refining furnace through flow-conveying groove,
After the molten aluminum of refining furnace reaches sets requirement, stops molten aluminum injection, when molten aluminum is warming up to 765 DEG C, bring refining agent into nitrogen
Molten aluminum is refined, refining band slag tap ash clawed by skimming gate using tool；
(2) molten aluminum handled well is injected into holding furnace by chute, the temperature of aluminum liquid of holding furnace is heated up to 835 DEG C, it is quiet
Set 25min；
(3) by the molten aluminum after standing after chute injection Rose Box filtering, molten aluminum is again through chute injecting jet atomising device
Molten aluminum contain collection room, molten aluminum contain collection room temperature of aluminum liquid control at 825 DEG C；The spray gun for opening jet atomization device, is passed through pressure
The inert gas of 0.6MPa, molten aluminum are atomized by spray gun, are controlled the flow-rate ratio of molten aluminum and inert gas in spray gun, are passed through nozzle aluminium
Flow quantity is 315 Grams Per Seconds, and inert gas flow is 1200 cubic millimeters/second, makes molten aluminum drop diameter control at 10~100 μm；
(4) after molten aluminum drop adjustment is suitable, graphene adding set is opened, according to graphene reinforced aluminum matrix composites
The requirement of graphene content ratio, according to the injection graphene platelet of molten aluminum flow continuous and quantitative, the graphene platelet of injection passes through
The inert gas of pressure 90KPa sends graphene platelet in spray deposition room forth from catheter nozzle；The thin injection rate of graphene
It is matched with liquid mist molten aluminum flow speed, makes the mass percent of the graphene in black alkene reinforced aluminum matrix composites 1%；
(5) graphene platelet floated covers in the molten aluminum drop of sinking, deposits to the conical funnel of settling chamber bottom
In, there is heating element outside conical funnel, the temperature of deposit is controlled between 680 DEG C, forms liquid or half melt
Aluminium/graphene mixture, aluminium/graphene mixture inject ingot casting shaping device by conical funnel；
(6) nitrogen of spray deposition room is blown into through spray deposition room to air draft pressure-reducing chamber from the unidirectional of air draft pressure-reducing chamber bottom
Automatic discharging pressure valve excludes；
(7) open ingot casting shaping device, regulate cooling system, make continuous casting temperature control 400~500 DEG C it
Between；
(8) graphene aluminium ingot casting is introduced into rolling equipment, continuous rolling is at required profile；
(9) graphene aluminum profile is received by receiving around equipment around packing.
The spray gun of jet atomization device described in step (3) is 5, is evenly arranged on spray deposition ceiling portion.
The high pure nitrogen or other performances that inert gas in step (3), (4) is nitrogenous 99.99% or more are similar lazy
Property gas.
The nozzle of graphene adding set described in step (4) is 4, is evenly arranged on settling chamber middle and lower part.
The graphene platelet be 8 layers of thickness and within carbon atom thickness graphene platelet.
Claims (6)
1. a kind of preparation method of graphene reinforced aluminum matrix composites, it is characterized in that steps are as follows:
(1) aluminium ingot is selected, adds it in aluminium melting furnace and is melted, the molten aluminum of fusing injects refining furnace through flow-conveying groove, refining
After the molten aluminum of furnace reaches sets requirement, stops molten aluminum injection, when molten aluminum is warming up to 750~780 DEG C, bring refining agent into nitrogen
Molten aluminum is refined, refining band slag tap ash clawed by skimming gate using tool；
(2) molten aluminum handled well is injected into holding furnace by chute, the temperature of aluminum liquid of holding furnace is risen to 820~850 DEG C, is stood
20~30min；
(3) by the molten aluminum after standing after chute injection Rose Box filtering, aluminium of the molten aluminum again through chute injecting jet atomising device
Liquid contains collection room, and the temperature of aluminum liquid that molten aluminum contains collection room is controlled at 810~840 DEG C；The spray gun for opening jet atomization device, is passed through pressure
The nitrogen of 0.5~0.8MPa, molten aluminum are atomized by spray gun, are controlled the flow-rate ratio of molten aluminum and nitrogen in spray gun, are passed through nozzle molten aluminum
Flow is 280~350 Grams Per Seconds, and nitrogen flow is 800~1500 cubic millimeters/second, makes molten aluminum drop diameter control in 10~100 μ
m；
(4) after molten aluminum drop adjustment is suitable, graphene adding set is opened, according to the graphite of graphene reinforced aluminum matrix composites
The requirement of alkene content ratio, according to the injection graphene platelet of molten aluminum flow continuous and quantitative, the graphene platelet of injection passes through pressure
The nitrogen of 80~100KPa sends graphene platelet in spray deposition room forth from catheter nozzle；Graphene platelet injection rate
It is matched with liquid mist molten aluminum flow speed；
(5) graphene platelet floated covers in the molten aluminum drop of sinking, deposits in the conical funnel of settling chamber bottom, circle
There is heating element outside conical hopper, the temperature of deposit is controlled between 650~710 DEG C, forms liquid or half melt
Aluminium/graphene mixture, aluminium/graphene mixture inject ingot casting shaping device by conical funnel；
(6) nitrogen of spray deposition room is blown into through spray deposition room to air draft pressure-reducing chamber from the unidirectional automatic of air draft pressure-reducing chamber bottom
Purge valve excludes；
(7) ingot casting shaping device is opened, cooling system is regulated, controls the temperature of continuous casting between 400~500 DEG C；
(8) graphene aluminium ingot casting is introduced into rolling equipment, continuous rolling is at required profile；
(9) graphene aluminum profile is received by receiving around equipment around packing；
The graphene reinforced aluminum matrix composites are formulated as follows: graphene 0.02%~1%, silicon 0.03% by mass percentage
~0.08%, iron 0.04%~0.15%, impurity element≤0.05%, surplus is aluminium；
The nozzle of graphene adding set described in step (4) is 2~6, is evenly arranged on settling chamber middle and lower part.
2. the preparation method of graphene reinforced aluminum matrix composites as described in claim 1, it is characterized in that: described in step (3)
The spray gun of jet atomization device is 2~7, is evenly arranged on spray deposition ceiling portion.
3. the preparation method of graphene reinforced aluminum matrix composites as described in claim 1, it is characterized in that: in step (3), (4)
Nitrogen be nitrogenous 99.99% or more high pure nitrogen.
4. the preparation method of graphene reinforced aluminum matrix composites as described in claim 1, it is characterized in that: the graphene platelet
For 8 layers and within carbon atom thickness graphene platelet.
5. the jet atomization device used in preparation method described in claim 1, it is characterized in that: including vessel (1), molten aluminum
Contain collection room (2), molten aluminum adding set (3), graphene adding set (4) and unidirectional exhaust valve (5)；On the vessel (1)
Side is equipped with molten aluminum adding set (3), and two sides are equipped with graphene adding set (4), and molten aluminum adding set (3) and molten aluminum contain collection room
(2) it is connected to；
The vessel (1) is divided into spray deposition room (11) and air draft pressure-reducing chamber (12), and the spray deposition room (11) is located at
Inside, air draft pressure-reducing chamber (12) are located at spray deposition room (11) outside, at the top of spray deposition room (11) and air draft pressure-reducing chamber (12)
It interconnects；The spray deposition room (11) funnel-form with a narrow upper and lower width；Bottom is in communication with the outside；
Air draft pressure-reducing chamber (12) bottom is equipped with unidirectional exhaust valve (5).
6. jet atomization device as claimed in claim 5, it is characterized in that: the graphene adding set (4) is that can control stone
The spraying equipment of black alkene flow velocity.
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| CN109161745A (en) * | 2018-10-23 | 2019-01-08 | 苏州杰森电器有限公司 | A kind of grass-mowing machine strong mechanical performance aluminium alloy and its manufacturing method |
| CN110295298B (en) * | 2019-01-17 | 2020-08-11 | 杭州电缆股份有限公司 | Preparation method of graphene-aluminum composite material |
| CN110172608B (en) * | 2019-06-28 | 2020-08-28 | 东北大学 | Preparation method for in-situ synthesis of graphene reinforced aluminum-based composite material |
| CN111101013A (en) * | 2019-12-31 | 2020-05-05 | 新疆烯金石墨烯科技有限公司 | Preparation method of novel graphene-aluminum composite material and graphene-aluminum composite material |
| CN114540656B (en) * | 2022-02-25 | 2022-11-25 | 南京工程学院 | Preparation method of high-quality electronic aluminum foil |
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| CN107058787A (en) * | 2017-05-05 | 2017-08-18 | 哈尔滨工业大学 | A kind of method that graphene reinforced aluminum matrix composites are prepared by raw material of graphite microchip |
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