CN107058786A - A kind of preparation method of magnesium-based graphene composite material - Google Patents
A kind of preparation method of magnesium-based graphene composite material Download PDFInfo
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- CN107058786A CN107058786A CN201710257988.3A CN201710257988A CN107058786A CN 107058786 A CN107058786 A CN 107058786A CN 201710257988 A CN201710257988 A CN 201710257988A CN 107058786 A CN107058786 A CN 107058786A
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- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 title claims abstract description 82
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 81
- 229910021389 graphene Inorganic materials 0.000 title claims abstract description 80
- 229910052749 magnesium Inorganic materials 0.000 title claims abstract description 68
- 239000011777 magnesium Substances 0.000 title claims abstract description 68
- 239000002131 composite material Substances 0.000 title claims abstract description 65
- 238000002360 preparation method Methods 0.000 title claims abstract description 32
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 38
- 239000000843 powder Substances 0.000 claims abstract description 34
- 229910052751 metal Inorganic materials 0.000 claims abstract description 33
- 239000002184 metal Substances 0.000 claims abstract description 33
- 238000003756 stirring Methods 0.000 claims abstract description 13
- 238000013019 agitation Methods 0.000 claims abstract description 11
- 238000005266 casting Methods 0.000 claims abstract description 11
- 238000007711 solidification Methods 0.000 claims abstract description 10
- 230000008023 solidification Effects 0.000 claims abstract description 10
- 239000007788 liquid Substances 0.000 claims abstract description 6
- 235000019441 ethanol Nutrition 0.000 claims abstract 4
- 239000000243 solution Substances 0.000 claims description 15
- 239000004411 aluminium Substances 0.000 claims description 12
- 229910052782 aluminium Inorganic materials 0.000 claims description 12
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 12
- 229910000861 Mg alloy Inorganic materials 0.000 claims description 10
- 238000001125 extrusion Methods 0.000 claims description 10
- 238000002844 melting Methods 0.000 claims description 9
- 230000008018 melting Effects 0.000 claims description 9
- 238000005275 alloying Methods 0.000 claims description 8
- 238000001192 hot extrusion Methods 0.000 claims description 8
- 239000011259 mixed solution Substances 0.000 claims description 8
- 230000005284 excitation Effects 0.000 claims description 7
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 4
- 239000011261 inert gas Substances 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 238000009849 vacuum degassing Methods 0.000 claims description 4
- 239000007789 gas Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims description 2
- 229910052786 argon Inorganic materials 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims description 2
- 239000000428 dust Substances 0.000 claims description 2
- 229910002804 graphite Inorganic materials 0.000 claims description 2
- 239000010439 graphite Substances 0.000 claims description 2
- 239000000314 lubricant Substances 0.000 claims description 2
- 238000012545 processing Methods 0.000 claims description 2
- 239000002994 raw material Substances 0.000 claims description 2
- -1 graphite Alkene Chemical class 0.000 claims 1
- 238000002604 ultrasonography Methods 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 10
- 239000000463 material Substances 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 238000001914 filtration Methods 0.000 abstract 1
- 238000011160 research Methods 0.000 description 8
- 230000002708 enhancing effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 235000019580 granularity Nutrition 0.000 description 4
- 150000001336 alkenes Chemical class 0.000 description 3
- 238000003723 Smelting Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 238000001291 vacuum drying Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000000498 ball milling Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000037396 body weight Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 210000003953 foreskin Anatomy 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000003701 mechanical milling Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000011812 mixed powder Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
Classifications
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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
-
- 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
- C22C1/1005—Pretreatment of the non-metallic additives
- C22C1/1015—Pretreatment of the non-metallic additives by preparing or treating a non-metallic additive preform
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C23/00—Alloys based on magnesium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
- C22C32/0089—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with other, not previously mentioned inorganic compounds as the main non-metallic constituent, e.g. sulfides, glass
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Composite Materials (AREA)
- Powder Metallurgy (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
Abstract
The present invention is a kind of preparation method of magnesium-based graphene composite material, belongs to magnesium-based composite material technical field.Graphene powder is dissolved in appropriate ethanol solution first, graphene ultrasonic disperse liquid is made；Metal magnesium powder is dissolved in absolute ethyl alcohol, and ultrasonically treated and mechanical agitation is mixed to get graphene/magnesium powder mixed liquor；By being dried in vacuo after filtering, magnesium-based graphene composite powder is made；Composite powder is subjected to Canned Hot, magnesium-based graphene consolidated preform base is made；The consolidated preform base removed after jacket is added to molten metal bath, by helical magnetic field stirring casting solidification, magnesium-based graphene composite material is finally prepared.The present invention is using the simple preparation technology easily realized, and production cost is low, material preparation scope wide, safety and environmental protection, has a wide range of applications promotion prospect, it is adaptable to prepare the magnesium-based graphene composite material of novel high-performance.
Description
Technical field
The invention belongs to field of research of metal, and in particular to a kind of preparation of magnesium-based graphene composite material
Method.
Background technology
With developing rapidly for modern science and technology and manufacturing industry, the field such as Aero-Space, communications and transportation, telecommunications
Demand and application to light-high-strength structural metallic materials also become more and more extensive.Magnesium-based composite material passes through in magnesium matrix
Middle addition enhancing is mutually made, and not only with the outstanding characteristic such as density is small, damping shock absorption is good, electromagnetic wave shielding is good, can also obtain
Get Geng Gao specific strength, specific stiffness, corrosion resistance, wearability, dimensional stability.At present, the research of magnesium-based composite material into
For the study hotspot of researcher, its product will also occupy critical role in Aero-Space and science and techniques of defence field.
Since graphene in 2004 comes out, because it has extremely excellent mechanics physical characteristic, " graphene thermal " is fast
Speed have swepts the globe.Graphene is the most thin and most hard material of current nature, tensile strength 125GPa, modulus of elasticity
1100GPa, thermal conductivity factor 5000Wm-1·K-1, it is considered to be very potential metallic composite enhancing phase, to new
The development of high-performance composite materials is significant.
At present, the research for mutually preparing metal-base composites as enhancing by the use of graphene is still at an early stage and main
The system such as aluminium base, copper-based, titanium-based is concentrated on, and it is considerably less on the research report that graphene strengthens magnesium-based composite material.
Due to there is the problems such as scattered uneven, poor lubricity, interface cohesion difference between graphene and magnesium alloy, graphene is caused to strengthen
The effect of magnesium-based composite material is unable to reach expection, seriously constrains the development of scientific research of numerous researchers.Therefore, asked more than solving
Topic, the research and application that could strengthen magnesium-based composite material for graphene provides good basis.
Existing graphene strengthens the preparation method of magnesium-based composite material, is typically to enter graphene with magnesium-based mixed-powder
Row ultrasonic agitation is scattered or ball milling is scattered, composite powder is obtained by vacuum drying, afterwards by being cold-pressed base, vacuum-sintering system
Blank is obtained, graphene magnesium-based composite material is prepared finally by hot extrusion.However, above-mentioned preparation method often exist it is following
Problem：Dispersion effect is easily influenceed by whipping process or mechanical milling process, so as to limit enhancing of the graphene to magnesium-based composite material
Effect；Powder-sintered product can not be completely fine and close, and easily produce and the defect such as aoxidize, burn, and has a strong impact on magnesium-based composite material
Performance and quality, its low production efficiency, high processing costs.Therefore, by conventional preparation technology, graphene is improved in magnesium-based
The dispersiveness of body weight, improves enhancing effect of the graphene to magnesium-based composite material, obtains the magnesium-based composite material of novel high-performance
It is the focus of world today's metallic composite area research, will also turns into the main side of following novel high-performance investigation of materials
One of to.
The content of the invention
The invention aims to solve to have scattered uneven, poor lubricity, interface between graphene and magnesium alloy
With reference to problems such as differences there is provided a kind of preparation method of magnesium-based graphene composite material, this method is using the simple system easily realized
Standby technique, production cost is low, material preparation scope wide, safety and environmental protection, has a wide range of applications promotion prospect.
A kind of preparation method of magnesium-based graphene composite material of the present invention, is concretely comprised the following steps：
(1) graphene powder of certain mass is taken, ultrasonically treated 0.5-1h in appropriate ethanol solution is added to, made
Finely dispersed graphene ethanol solution is obtained, it is stand-by；
(2) metal magnesium powder for taking certain mass granularity to be 300-400 mesh in vacuum glove box, is added to appropriate anhydrous
In ethanol solution, ultrasonically treated and mechanical agitation is carried out, while the repeatedly graphene ethanol obtained by a small amount of dropwise addition step (1)
Solution, a length of 1-2h when ultrasonically treated and churned mechanically obtains finely dispersed graphene/magnesium powder mixed solution；
(3) it is dried in vacuo after the mixed solution obtained by step (2) is filtered, magnesium-based graphene composite powder is made
End.
(4) composite powder obtained by step (3) is transferred in vacuum glove box, composite powder is then loaded into aluminium bag
Its compactness is improved by continuous ram-jolt during set, dress powder, aluminium jacket is finally subjected to vacuum degassing sealing.
(5) step (4) is sealedly wrapped under conditions of 200-400 DEG C, extrusion ratio 10-20 and carries out hot extrusion, made
Obtain magnesium-based graphene consolidated preform base.
(6) inert gas shielding is used, magnesium and magnesium alloy are subjected to melting by certain alloying component, then by step (5)
Obtained consolidated preform base is added in molten metal liquid, treats that alloying component fusing is complete, molten metal is cast to and is in
In metal mold in helical magnetic field stirring system, after obtained magnesium-based graphene composite material after melt solidification.
Further, graphene is individual layer or few layer graphene in step (1), and purity is more than 99%.
Further, metal magnesium powder is pure magnesium dust in step (2), and granularity is 300-400 mesh.
Further, argon gas is full of in step (2) in vacuum glove box.
Further, power ultrasonically treated in step (2) be 300-1000W, mechanical agitation speed be 300-1000 turn/
Minute.
Further, vacuum drying temperature range is 35-60 DEG C in step (3), and drying time is 2-6h.
Further, in step (4) after aluminium jacket dress powder, the initial compactness of powder inside is 60-85%.
Further, Al powder jacket needs preheating with extrusion die before hot extrusion in step (5), and preheating temperature is
200-400 DEG C, being incubated in 1-2h, extrusion process needs to smear lubricant.
Further, melting raw material are pure magnesium or magnesium alloy in step (6), and consolidated preform block is removed need to be molten after jacket
150-500 DEG C is preheated to before refining.
Further, magnesium-based graphene composite material is prepared using helical magnetic field stirring means in step (6), casting
Preceding unlatching helical magnetic field stirring system, after being turned off after alloy graining, metal mold need to be preheated to 300-400 DEG C in advance, apply
Plus excitation voltage scope be not higher than 120V.
Helical magnetic field stirring system used in the present invention is the electromagnetic agitation used in the magnesium alloy cast method of independent research
Device, has applied for utility model patent, the Patent No. 2013200376097 of utility model patent, and the applying date is
2013.1.8.By adjusting the excitation voltage of the electromagnetic mixing apparatus used in magnesium alloy cast method, adjustment magnetic field is to described
The influence of magnesium-based graphene composite material process of setting and performance.
Compared with prior art, the present invention, which is had the advantage that with beneficial effect, is：
First, graphene uniform is dispersed in magnesium powder surface by the present invention using ultrasonically treated and mechanical agitation in advance, then
As-extruded consolidated preform base is added in molten metal bath, effectively can be distributed to the graphene uniform of magnesium powder surface adhesion molten
Melt in molten metal, the integrality of graphene-structured can be effectively ensured, give full play to it and strengthen effect.Treat that alloying component has melted
Entirely, magnesium-based graphene composite material is made using helical magnetic field stirring solidification technology after casting.
Second, the present invention in magnesium-based graphene composite powder hot extrusion is vacuumized using jacket, can effectively remove powder
In gas, reduce internal residual hole, be made surface quality preferably, the higher magnesium-based graphene of consistency be combined consolidated preform
Block, is easy to its follow-up application and reprocessing.
3rd, the present invention stirs solidification technology using helical magnetic field, and helical magnetic field is applied in the process of setting of molten metal,
Force molten metal to do regular convective motion, be conducive to improving alloying component segregation, reduce casting flaw, crystal grain thinning, from
And the preparation quality of material is improved, obtain the magnesium-based graphene composite material of novel high-performance.
4th, the present invention is using the simple preparation technology easily realized, and production cost is low, material preparation scope wide, safety
Environmental protection, has a wide range of applications promotion prospect.
Brief description of the drawings
Fig. 1 is the preparation method flow chart of magnesium-based graphene composite material of the present invention.
Embodiment
The present invention is further illustrated below in conjunction with specific embodiments.
Embodiment 1：
A kind of preparation method of magnesium-based graphene composite material, is carried out according to the following steps：
(1) 200mg graphene powders are taken to be added in 300ml ethanol solutions, through the ultrasonically treated of 400W, 40min,
It is 0.67mg/ml and finely dispersed graphene ethanol solution that concentration, which is made,；
(2) metal magnesium powder for taking 99.8g granularities to be 325 mesh in vacuum glove box, is added to 100ml ethanol solutions
In, through 15min is ultrasonically treated and mechanical agitation；While the graphene ethanol solution obtained by multiple a small amount of dropwise addition step (1),
A length of 2h when ultrasonically treated and churned mechanically, obtains finely dispersed graphene/magnesium powder mixed solution；
(3) it is dried in vacuo after the mixed solution obtained by step (2) is filtered, 35 DEG C of dry 6h, magnesium-based stone is made
Black alkene composite powder.
(4) composite powder obtained by step (3) is transferred in vacuum glove box, composite powder is then loaded into aluminium bag
Set, dress powder compactness reaches 70%, and aluminium jacket finally is carried out into vacuum degassing sealing.
(5) by step (4) institute, sealedly jacket preheating carries out hot extrusion at 250 DEG C, under conditions of extrusion ratio 14, and magnesium is made
The preheating condition of base graphene consolidated preform base, Al powder jacket and extrusion die is 250 DEG C, insulation 2h.
(6) inert gas shielding is used, the high-purity magnesium ingots of melting 400g (99.99%) are wrapped to molten metal bath, then by removing
200 DEG C of skin and preheating, the consolidated preform base for being incubated 1h are added in molten metal liquid, treat that its fusing is complete, molten metal is poured
Cast onto in the metal mold in helical magnetic field stirring system, casting mold preheating temperature is 300 DEG C, the excitation voltage of application is
90V, after obtained magnesium-based graphene composite material after melt solidification.
Comparative example 1：
As a comparison, the melting of pure magnesium ingot is carried out using conventional smelting technology, treats that its fusing is complete, molten metal is cast to
In the metal mold in helical magnetic field stirring system, casting mold preheating temperature is 300 DEG C, and the excitation voltage of application is 90V, is treated
After melt solidification, ingot casting is taken out.
Embodiment 2：
A kind of preparation method of magnesium-based graphene composite material, is carried out according to the following steps：
(1) 500mg graphene powders are taken to be added in 400ml ethanol solutions, through the ultrasonically treated of 600W, 30min,
It is 1.25mg/ml and finely dispersed graphene ethanol solution that concentration, which is made,；
(2) metal magnesium powder for taking 99.5g granularities to be 400 mesh in vacuum glove box, is added to 100ml ethanol solutions
In, through 15min is ultrasonically treated and mechanical agitation；While the graphene ethanol solution obtained by multiple a small amount of dropwise addition step (1),
A length of 2h when ultrasonically treated and churned mechanically, obtains finely dispersed graphene/magnesium powder mixed solution；
(3) it is dried in vacuo after the mixed solution obtained by step (2) is filtered, 45 DEG C of dry 5h, magnesium-based stone is made
Black alkene composite powder.
(4) composite powder obtained by step (3) is transferred in vacuum glove box, composite powder is then loaded into aluminium bag
Set, dress powder compactness reaches 80%, and aluminium jacket finally is carried out into vacuum degassing sealing.
(5) by step (4) institute, sealedly jacket preheating carries out hot extrusion at 350 DEG C, under conditions of extrusion ratio 10, and magnesium is made
The preheating condition of base graphene consolidated preform base, Al powder jacket and extrusion die is 350 DEG C, insulation 1h.
(6) inert gas shielding is used, (its mass fraction is by 400g magnesium alloys：Zn 2%, Zr 0.7%, Ca
0.5%, remaining is magnesium) melting to molten metal bath, then will remove foreskin and preheating 250 DEG C, be incubated 1h consolidated preform base add
Enter into molten metal liquid, treat that alloying component fusing is complete, molten metal is cast in helical magnetic field stirring system
In metal mold, casting mold preheating temperature is 350 DEG C, and the excitation voltage of application is 120V, after obtained magnesium-based graphite after melt solidification
Alkene composite.
Comparative example 2：
As a comparison, the melting of magnesium alloy is carried out using conventional smelting technology, treats that alloying component fusing is complete, by molten metal
It is cast in the metal mold in helical magnetic field stirring system, casting mold preheating temperature is 350 DEG C, the excitation voltage of application is
120V, after after melt solidification, takes out ingot casting.
The embodiment 1,2 of table 1 and the basic performance of corresponding preparation technology resulting materials are contrasted
As it can be seen from table 1 the magnesium-based graphene composite material obtained by the present invention can give full play to graphene as increasing
The strong advantage for mutually preparing metal-base composites, meanwhile, apllied preparation method of the invention is simply easily realized, production cost
Low, material preparation scope is wide, safety and environmental protection, is easy to the preparation of novel high-performance magnesium-based composite material to produce.
Embodiment described above is merely to illustrate technical scheme, not limits the present invention, art with this
Technical staff in the case where not departing from marrow of the present invention, any improvement in the present invention, belong to the present invention protection model
Within enclosing.
Claims (10)
1. a kind of preparation method of magnesium-based graphene composite material, it is characterised in that this method comprises the following steps：
(1) graphene powder of certain mass is taken, ultrasonically treated 0.5-1h in appropriate ethanol solution is added to, is made and divides
Uniform graphene ethanol solution is dissipated, it is stand-by；
(2) metal magnesium powder for taking certain mass granularity to be 300-400 mesh in vacuum glove box, is added to appropriate absolute ethyl alcohol
In solution, ultrasonically treated and mechanical agitation is carried out, while the graphene ethanol repeatedly obtained by a small amount of dropwise addition step (1) is molten
Liquid, a length of 1-2h when ultrasonically treated and churned mechanically obtains finely dispersed graphene/magnesium powder mixed solution；
(3) it is dried in vacuo after the mixed solution obtained by step (2) is filtered, magnesium-based graphene composite powder is made.
(4) composite powder obtained by step (3) is transferred in vacuum glove box, composite powder is then loaded into aluminium jacket,
Its compactness is improved by continuous ram-jolt during dress powder, aluminium jacket is finally subjected to vacuum degassing sealing.
(5) step (4) is sealedly wrapped under conditions of 200-400 DEG C, extrusion ratio 10-20 and carries out hot extrusion, magnesium is made
Base graphene consolidated preform base.
(6) inert gas shielding is used, magnesium and magnesium alloy are subjected to melting by certain alloying component, then step (5) is made
The consolidated preform base obtained is added in molten metal liquid, treats that alloying component fusing is complete, molten metal is cast in spiral
In metal mold in magnetic field agitation system, after obtained magnesium-based graphene composite material after melt solidification.
2. a kind of preparation method of magnesium-based graphene composite material according to claim 1, it is characterised in that the graphite
Alkene is individual layer or few layer graphene, and purity is more than 99%.
3. a kind of preparation method of magnesium-based graphene composite material according to claim 1, it is characterised in that the metal
Magnesium powder is pure magnesium dust, and granularity is 300-400 mesh.
4. a kind of preparation method of magnesium-based graphene composite material according to claim 1, it is characterised in that the vacuum
Argon gas is full of in glove box.
5. a kind of preparation method of magnesium-based graphene composite material according to claim 1, it is characterised in that the ultrasound
The power of processing is 300-1000W, and mechanical agitation speed is 300-1000 revs/min.
6. a kind of preparation method of magnesium-based graphene composite material according to claim 1, it is characterised in that the vacuum
Dry temperature range is 35-60 DEG C, and drying time is 2-6h.
7. a kind of preparation method of magnesium-based graphene composite material according to claim 1, it is characterised in that the aluminium bag
It is set with after powder, the initial compactness of powder inside is 60-85%.
8. a kind of preparation method of magnesium-based graphene composite material according to claim 1, it is characterised in that the powder
Aluminium jacket needs preheating with extrusion die before hot extrusion, and preheating temperature is 200-400 DEG C, and being incubated in 1-2h, extrusion process needs
Smear lubricant.
9. a kind of preparation method of magnesium-based graphene composite material according to claim 1, it is characterised in that the melting
Raw material are pure magnesium or magnesium alloy, and consolidated preform block need to be preheated to 150-500 DEG C after removing jacket before melting.
10. a kind of preparation method of magnesium-based graphene composite material according to claim 1, it is characterised in that the magnesium-based
Graphene composite material is prepared using helical magnetic field stirring means, and helical magnetic field stirring system is opened before casting, alloy is treated
It is turned off after solidification, metal mold need to be preheated to 300-400 DEG C in advance, and the excitation voltage scope of application is not higher than 120V.
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Cited By (15)
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|---|---|---|---|---|
| CN107675028A (en) * | 2017-09-25 | 2018-02-09 | 广州埃米石墨烯投资管理有限公司 | A kind of single-layer graphene/aluminium composite material and preparation method thereof |
| CN107904428A (en) * | 2017-11-28 | 2018-04-13 | 北京工业大学 | A kind of magnesium alloy refiner of graphene-containing and preparation method thereof |
| CN108838401A (en) * | 2018-07-10 | 2018-11-20 | 兰州理工大学 | The method for preparing graphene enhancing magnesium-based composite material based on powder thixotropic forming |
| CN109112375A (en) * | 2018-10-09 | 2019-01-01 | 贵州航天风华精密设备有限公司 | A kind of preparation method of high-performance alkene magnesium alloy |
| CN109680176A (en) * | 2019-03-01 | 2019-04-26 | 北京工业大学 | A kind of graphene enhancing magnesium-based composite material and preparation method thereof |
| CN110306086A (en) * | 2019-06-26 | 2019-10-08 | 哈尔滨理工大学 | A kind of corrosion resistant Mg-Zn-Ca-Sn biological medical magnesium alloy preparation method of novel multiple |
| CN111996410A (en) * | 2020-09-17 | 2020-11-27 | 山东省科学院新材料研究所 | Graphene reinforced magnesium-based composite material and preparation method and application thereof |
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| CN113088729A (en) * | 2021-02-20 | 2021-07-09 | 南昌大学 | Preparation method for improving semi-solid structure of magnesium-based composite material |
| CN113088742A (en) * | 2021-02-20 | 2021-07-09 | 南昌大学 | Preparation method of modifier and graphene composite refined magnesium alloy semi-solid structure |
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| CN107675028A (en) * | 2017-09-25 | 2018-02-09 | 广州埃米石墨烯投资管理有限公司 | A kind of single-layer graphene/aluminium composite material and preparation method thereof |
| CN107904428A (en) * | 2017-11-28 | 2018-04-13 | 北京工业大学 | A kind of magnesium alloy refiner of graphene-containing and preparation method thereof |
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| CN108838401A (en) * | 2018-07-10 | 2018-11-20 | 兰州理工大学 | The method for preparing graphene enhancing magnesium-based composite material based on powder thixotropic forming |
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| CN110306086A (en) * | 2019-06-26 | 2019-10-08 | 哈尔滨理工大学 | A kind of corrosion resistant Mg-Zn-Ca-Sn biological medical magnesium alloy preparation method of novel multiple |
| CN111996410B (en) * | 2020-09-17 | 2022-01-25 | 山东省科学院新材料研究所 | Graphene reinforced magnesium-based composite material and preparation method and application thereof |
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| CN112941358A (en) * | 2021-01-11 | 2021-06-11 | 南昌大学 | Preparation method of graphene-reinforced Mg-Al-Zn alloy |
| CN113088729A (en) * | 2021-02-20 | 2021-07-09 | 南昌大学 | Preparation method for improving semi-solid structure of magnesium-based composite material |
| CN113088742A (en) * | 2021-02-20 | 2021-07-09 | 南昌大学 | Preparation method of modifier and graphene composite refined magnesium alloy semi-solid structure |
| CN113005313A (en) * | 2021-02-23 | 2021-06-22 | 太原理工大学 | Preparation method of configuration design pre-dispersed graphene nanosheet reinforced magnesium-based composite material |
| CN113005313B (en) * | 2021-02-23 | 2021-10-22 | 太原理工大学 | Preparation method of configuration design pre-dispersed graphene nanosheet reinforced magnesium-based composite material |
| CN113441713A (en) * | 2021-06-15 | 2021-09-28 | 宁波职业技术学院 | Light composite material for roof construction and preparation method thereof |
| CN113441713B (en) * | 2021-06-15 | 2023-11-24 | 宁波职业技术学院 | Light composite material for roof construction and preparation method thereof |
| CN116200623A (en) * | 2023-03-03 | 2023-06-02 | 北京工业大学 | Orientation-arranged graphene reinforced magnesium-based composite material and preparation method thereof |
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