CN103397284B - Preparation method of carbon fiber strengthened aluminum-base-layer-shaped composite board - Google Patents
Preparation method of carbon fiber strengthened aluminum-base-layer-shaped composite board Download PDFInfo
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- CN103397284B CN103397284B CN201310322759.7A CN201310322759A CN103397284B CN 103397284 B CN103397284 B CN 103397284B CN 201310322759 A CN201310322759 A CN 201310322759A CN 103397284 B CN103397284 B CN 103397284B
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Abstract
The invention relates to a preparation method of a carbon fiber strengthened aluminum-base-layer-shaped composite board, and aims to solve the condition that the intensities of aluminum and aluminum alloy are low and the tenacity is poor. According to the preparation method, aluminum powder and carbon fiber cloth are heated, fused and combined, vibrated and pressurized so as to manufacture an aluminum base-layer-shaped composite board, the carbon fiber strengthened aluminum base-layer-shaped composite board is manufactured on a heating and vibrating press machine in a heating, pressurizing and vibrating process, so that a nine-layer structure is formed, an aluminum solution is utilized for wetting the carbon fibers under low temperature, pressure and vibration actions, and a fragility compound can not be formed, so that the organization structure is compact, the tensile strength achieves 144MPa, the elongation achieves 21.2%, the process is advanced, the data is full and accurate, the process flow path is short, and the preparation method is an ideal method for preparing the carbon fiber strengthened aluminum base-layer-shaped composite board.
Description
Technical field
The present invention relates to the preparation method that a kind of carbon fiber strengthens aluminum-based layered composition board, belong to the technical field of the preparation of non-ferrous metal matrix material and application.
Background technology
Aluminium is period 3 main group element in the periodic table of elements, for face-centered cubic lattice, change without ppolymorphism, ductility is good, plasticity is high, good moldability, can carry out multiple mechanical, and aluminium and alloy thereof also have good thermal conductivity, electroconductibility, reflective, without advantages such as low temperature brittleness, can be made into sheet material, section bar, be widely used in the industrial circles such as automobile, space flight, telecommunications, computer; But aluminium and alloy strength thereof are low, hardness is low, affect greatly the application of aluminium and alloy thereof; In order to improve the mechanical property of aluminium and alloy thereof, the normal method that adopts composite strengthening, the aluminium alloy stratiform plate that for example utilizes adhering with epoxy resin glass fibre to strengthen, but the lamellated plate thermostability of adhering with epoxy resin, thermoelectricity conductivity, heat-shock resistance and moistureproofness are poor.
A kind of special fibre that carbon fiber is made up of carbon, molecular structure circle is between graphite and diamond, carbon containing volume fraction is more than 90%, carbon fiber quality is light, tensile strength is high, there is high temperature resistant, conduction, heat conduction, feature that the coefficient of expansion is little simultaneously, will there is higher hardness, intensity, toughness, high temperature resistant and electrical and thermal conductivity performance if utilize carbon fiber and aluminium and alloy thereof to make matrix material.
At present, utilizing carbon fiber reinforced aluminum matrix composite is mainly liquid metal pickling process, carbon fiber need to be immersed in high-temperature liquid metal for a long time, easy damaged carbon fiber, easily form frangible compounds at carbon fiber surface, reduce the bonding strength of fiber and metal, and cost is high, complex process, making carbon fiber strengthen aluminium-base composite plate cannot be in industrial extensive promotion and application.
Summary of the invention
Goal of the invention
Object of the present invention is exactly the deficiency for background technology, adopt aluminium powder embedding multilayer carbon cloth, under heating, pressurization, vibration, carbon fiber and aluminium powder are combined closely, make carbon fiber and strengthen aluminum-based layered composition board, to increase substantially intensity, the rigidity of aluminium-base composite plate, expand the use range of aluminium-base composite plate.
Technical scheme
The chemical substance material that the present invention uses is: aluminium powder, carbon cloth, graphite paper, deionized water, acetone, argon gas, it is as follows that consumption is prepared in its combination: with millimeter, gram, milliliter, centimetre
3for measure unit
Aluminium powder: Al 500g ± 5g
Carbon cloth: 750mm × 0.3mm × 750mm
Graphite paper: C 1000mm × 0.5mm × 1000mm
Deionized water: H
2o 2000mL ± 20mL
Acetone: C
3h
6o 200mL ± 5mL
Argon gas: Ar 40000cm
3± 100cm
3
Preparation method is as follows:
(1) selected chemical substance material
The chemical substance material that preparation is used will carry out selected, and carries out quality purity, content control;
Aluminium powder: solid powder 99.9%
Carbon cloth: solid-state solid carbon amount >=95%
Graphite paper: solid-state solid carbon amount >=99%
Deionized water: liquid liquid 99.9%
Acetone: liquid liquid 99.9%
Argon gas: gaseous state gas 99.99%
(2) prepare open-close type groove hot pressing die
Open-close type groove hot pressing die is square tube shape, and mold cavity is of a size of 200mm × 200mm × 600mm, makes of stainless material, and mold cavity surface roughness is Ra0.63-1.25 μ m;
(3) Treatment of Carbon cloth
Carbon cloth is put into vacuum heat treatment furnace, first extract furnace air, make pressure≤1Pa in stove, then input argon gas, argon gas input speed is 80cm
3/ min, makes pressure in stove remain on 0.101MPa, is then heated to 550 ℃ ± 5 ℃, and constant temperature insulation 30min, then stops heating, takes out after cooling to 25 ℃ with the furnace;
(4) clean, carbon cloth after thermal treatment is placed in to clean container, add acetone 200mL, stirring and washing 10min, dries after cleaning;
(5) prepare aluminum-based layered composition board
The preparation of aluminum-based layered composition board is carried out on heating vibration pressing machine, is in open-close type groove hot pressing die, under heating, vibration, pressure state, completes;
1. open-close type groove hot pressing die is vertically seated on shaking table, and fixing;
2. the first resistance heater is fixed on to hot pressing die bottom, working face upwards;
3. in mold cavity, spill lower bolster is put on the first resistance heater top, launches to put the first layer graphite paper in spill lower bolster upper plane; Evenly put the first layer aluminium powder 108g ± 0.01g on the first layer graphite paper top; Launch to put the first layer carbon cloth in the first layer aluminium powder upper plane; Evenly put second layer aluminium powder 108g ± 0.01g on the first layer carbon cloth top; Launch to put second layer carbon cloth in second layer aluminium powder upper plane; Evenly put the 3rd layer of aluminium powder 108g ± 0.01g on second layer carbon cloth top; Launch to put the 3rd layer of carbon cloth the 3rd layer of aluminium powder upper plane; Evenly put the 4th layer of aluminium powder 108g ± 0.01g on the 3rd layer of carbon cloth top; Launch to put second layer graphite paper the 4th layer of aluminium powder upper plane;
4. put upper padding plate in second layer graphite paper upper plane;
5. put the second resistance heater on upper padding plate top;
6. put upper holder block in the second resistance heater upper plane;
7. contact with seaming chuck, pressure motor on upper holder block top;
Opening pressure motor, exerts pressure to aluminium powder, carbon cloth, graphite paper in mold cavity by seaming chuck, upper holder block, the second resistance heater, and the pressure of exerting pressure is 3MPa, closing presure motor after the 20s that exerts pressure;
8. open the first resistance heater, the second resistance heater, first, second, third, fourth layer of aluminium powder in heating mould die cavity and first, second, third layer of carbon cloth and first, second layer of graphite paper, 660 ℃ ± 3 ℃ of Heating temperatures, make aluminium powder modality become liquid, and bonding with carbon cloth, graphite paper;
9. close first, second resistance heater, open shaking table, vibrational frequency is 3000 times/min, in the time that temperature drops to 600 ℃, and opening pressure motor, pressure rises to 10MPa, continues the 60s that exerts pressure;
10. closing presure motor, shaking table, makes mould and aluminum-based layered composition board naturally cool to 25 ° of C; After cooling, aluminum-based layered composition board, i.e. end product are taken out in die sinking;
(6) detect, analyze, characterize
The pattern, color and luster, thing phase, the microstructure mechanical property that the carbon fiber of preparation are strengthened to aluminum-based layered composition board detect, analyze and characterize;
Carry out microstructure material phase analysis with scanning electronic microscope and x x ray diffractometer x;
Carry out strength test with electronic universal tester;
Conclusion: it is nine layers of structure that carbon fiber strengthens aluminum-based layered composition board
That is: graphite ply of paper, aluminium lamination, carbon fibre cloth layer, aluminium lamination, carbon fibre cloth layer, aluminium lamination, carbon fibre cloth layer, aluminium lamination, graphite ply of paper; Aluminium powder infiltrates carbon fibre cloth layer in heating, vibration, pressure process, and the tensile strength that carbon fiber strengthens aluminum-based layered composition board reaches 144MPa, and elongation reaches 21.2%;
(7) packing and storing
The carbon fiber of preparation is strengthened to aluminum-based layered composition board and pack with soft material, be stored in dried and clean environment, waterproof, protection against the tide, anti-oxidation, anti-acid-alkali salt to corrode, 20 ℃ of storing temps, relative humidity≤10%.
Beneficial effect
The present invention has obvious advance compared with background technology, low for aluminium and intensity of aluminum alloy, the situation of poor toughness, adopt aluminium powder to be combined with carbon cloth heating and melting, vibration pressurization, make aluminum-based layered composition board, on the pressing machine of heating and vibration, in hot pressing die, suppress, three layers of carbon cloth and aluminium powder interlayer are laid, in heating, pressurization, in vibration processes, make carbon fiber and strengthen aluminum-based layered composition board, become nine layers of structure, aluminium liquid has wet carbon fiber under pressure and oscillating action, do not form frangible compounds, weave construction is finer and close, tensile strength reaches 144MPa, elongation reaches 21.2%, this preparation method's technique advanced person, informative data is accurate, technical process is short, it is the very good method of preparing carbon fiber enhancing aluminum-based layered composition board.
Accompanying drawing explanation
Fig. 1 is that carbon fiber strengthens aluminum-based layered composite layered plate compacting state graph
Fig. 2 is that carbon fiber strengthens aluminum-based layered composite plate structure figure
Fig. 3 is that carbon fiber strengthens aluminum-based layered composition board microsturcture shape appearance figure
Fig. 4 is that carbon fiber strengthens aluminum-based layered composition board interface X ray diffracting spectrum
Fig. 5 is that carbon fiber strengthens aluminum-based layered composition board and hot pressing aluminium sheet mechanical performance compare table
Shown in figure, list of numerals is as follows:
1, pressing machine, 2, base, 3, footstock, 4, pressure motor, 5, lifting handle, 6, seaming chuck, 7, left column, 8, right column, 9, shaking table, 10, upper holder block, 11, the first resistance heater, 12, the second resistance heater, 13, open-close type groove hot pressing die, 14, aluminum-based layered composition board, 15, spill lower bolster, 16, upper padding plate, 17, electric control box, 18, display screen, 19, pilot lamp, 20, power switch, 21, pressure motor switch, 22, the first resistive heating modulator, 23, the second resistive heating modulator, 24, shaking table modulator, 25, wire.
I, graphite ply of paper, II, aluminium lamination, III, carbon fibre cloth layer, IV, aluminium lamination, V, carbon fibre cloth layer, VI, aluminium lamination, VII, carbon fibre cloth layer, VIII, aluminium lamination, IX, graphite ply of paper.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be further described:
Shown in Fig. 1, for carbon fiber strengthens aluminum-based layered composition board compacting state graph, each portion position, annexation want correct, proportioning according to quantity, according to the order of sequence operation.
The value of the chemical substance that preparation is used is to determine by the scope setting in advance, take gram, milliliter, millimeter as measure unit.
Preparing carbon fiber enhancing aluminum-based layered composition board and carry out on heating vibration pressing machine, is in open-close type groove hot pressing die, under heating, vibration, pressure state, completes;
Pressing machine 1 is vertical, and bottom is base 2, and left and right portion vertically arranges left column 7, right column 8, is footstock 3 on left and right pillar 7,8 tops, is provided with pressure motor 4 on footstock 3 tops, on base 2 tops, shaking table 9 is set, at right angle setting open-close type groove hot pressing die 13 on shaking table 9, at interior storing the first resistor 11 of open-close type groove hot pressing die 13, put spill lower bolster 15 on the first resistor 11 tops, be aluminum-based layered composition board 14 on spill lower bolster 15 tops, and pushed down by upper padding plate 16, in upper padding plate 16 upper vertical, the second resistance heater 12 is installed, the vertical upper holder block 10 of putting on the second resistance heater 12, upper holder block 10 tops are pushed down by seaming chuck 6, seaming chuck 6 connects the pressure motor 4 on top, the distance of adjusting up and down of seaming chuck 6 is adjusted by the lifting handle 5 of sidepiece, be provided with electric control box 17 in the left side of pressing machine 1, on electric control box 17, be provided with display screen 18, pilot lamp 19, power switch 20, pressure motor switch 21, the first resistive heating modulator 22, the second resistive heating modulator 23, shaking table modulator 24, electric control box 17 is connected by wire 25 with pressure motor 4, shaking table 9, the first resistance heater 11, the second resistance heater 12.
Shown in Fig. 2, for carbon fiber strengthens aluminum-based layered composite plate structure figure, visible in figure: composition board is nine layers of structure, the first layer is graphite ply of paper I, the second layer is aluminium lamination II, the 3rd layer is carbon fibre cloth layer III, and the 4th layer is aluminium lamination IV, and layer 5 is carbon fibre cloth layer V, layer 6 is aluminium lamination VI, layer 7 is carbon fibre cloth layer VII, and the 8th layer is aluminium lamination VIII, and the 9th layer is graphite ply of paper IX.
Shown in Fig. 3, for carbon fiber strengthens aluminum-based layered composition board microsturcture shape appearance figure, visible in figure: aluminium infiltrates in carbon fiber gap, and weave construction is tight, the defects such as flawless, hole.
Shown in Fig. 4, for carbon fiber strengthens aluminum-based layered composition board interface X ray diffracting spectrum, visible in figure: interface is mainly Al phase and C phase, produces without intermediate compound.
Shown in Fig. 5, for carbon fiber strengthens aluminum-based layered composition board and hot pressing aluminium sheet mechanical performance compare table, visible in figure: the tensile strength that carbon fiber strengthens aluminum-based layered composition board reaches 144MPa, and elongation reaches 21.2%, the tensile strength of specific heat jewelling plate increases by 50%, and elongation increases by 81%.
Claims (3)
1. the preparation method of a carbon fiber enhancing aluminum-based layered composition board, it is characterized in that: the chemical substance material of use is: aluminium powder, carbon cloth, graphite paper, deionized water, acetone, argon gas, it is as follows that consumption is prepared in its combination: with millimeter, gram, milliliter, centimetre
3for measure unit
Aluminium powder: Al 500g ± 5g
Carbon cloth: 750mm × 0.3mm × 750mm
Graphite paper: C 1000mm × 0.5mm × 1000mm
Deionized water: H
2o 2000mL ± 20mL
Acetone: C
3h
6o 200mL ± 5mL
Argon gas: Ar 40000cm
3± 100cm
3
Preparation method is as follows:
The chemical substance material that preparation is used will carry out selected, and carries out quality purity, content control;
Aluminium powder: solid powder 99.9%
Carbon cloth: solid-state solid carbon amount >=95%
Graphite paper: solid-state solid carbon amount >=99%
Deionized water: liquid liquid 99.9%
Acetone: liquid liquid 99.9%
Argon gas: gaseous state gas 99.99%
(2) prepare open-close type groove hot pressing die
Open-close type groove hot pressing die is square tube shape, and mold cavity is of a size of 200mm × 200mm × 600mm, makes of stainless material, and mold cavity surface roughness is Ra0.63-1.25 μ m;
(3) Treatment of Carbon cloth
Carbon cloth is put into vacuum heat treatment furnace, first extract furnace air, make pressure≤1Pa in stove, then input argon gas, argon gas input speed is 80cm
3/ min, makes pressure in stove remain on 0.101MPa, is then heated to 550 ℃ ± 5 ℃, and constant temperature insulation 30min, then stops heating, takes out after cooling to 25 ℃ with the furnace;
(4) clean, carbon cloth after thermal treatment is placed in to clean container, add acetone 200mL, stirring and washing 10min, dries after cleaning;
(5) prepare aluminum-based layered composition board
The preparation of aluminum-based layered composition board is carried out on heating vibration pressing machine, is in open-close type groove hot pressing die, under heating, vibration, pressure state, completes;
1. open-close type groove hot pressing die is vertically seated on shaking table, and fixing;
2. the first resistance heater is fixed on to hot pressing die bottom, working face upwards;
3. in mold cavity, spill lower bolster is put on the first resistance heater top, launches to put the first layer graphite paper in spill lower bolster upper plane; Evenly put the first layer aluminium powder 108g ± 0.01g on the first layer graphite paper top; Launch to put the first layer carbon cloth in the first layer aluminium powder upper plane; Evenly put second layer aluminium powder 108g ± 0.01g on the first layer carbon cloth top; Launch to put second layer carbon cloth in second layer aluminium powder upper plane; Evenly put the 3rd layer of aluminium powder 108g ± 0.01g on second layer carbon cloth top; Launch to put the 3rd layer of carbon cloth the 3rd layer of aluminium powder upper plane; Evenly put the 4th layer of aluminium powder 108g ± 0.01g on the 3rd layer of carbon cloth top; Launch to put second layer graphite paper the 4th layer of aluminium powder upper plane;
4. put upper padding plate in second layer graphite paper upper plane;
5. put the second resistance heater on upper padding plate top;
6. put upper holder block in the second resistance heater upper plane;
7. contact with seaming chuck, pressure motor on upper holder block top;
Opening pressure motor, exerts pressure to aluminium powder, carbon cloth, graphite paper in mold cavity by seaming chuck, upper holder block, the second resistance heater, and the pressure of exerting pressure is 3MPa, closing presure motor after the 20s that exerts pressure;
8. open the first resistance heater, the second resistance heater, first, second, third, fourth layer of aluminium powder in heating mould die cavity and first, second, third layer of carbon cloth and first, second layer of graphite paper, 660 ℃ ± 3 ℃ of Heating temperatures, make aluminium powder modality become liquid, and bonding with carbon cloth, graphite paper;
9. close first, second resistance heater, open shaking table, vibrational frequency is 3000 times/min, in the time that temperature drops to 600 ℃, and opening pressure motor, pressure rises to 10MPa, continues the 60s that exerts pressure;
10. closing presure motor, shaking table, makes mould and aluminum-based layered composition board naturally cool to 25 ℃; After cooling, aluminum-based layered composition board, i.e. end product are taken out in die sinking;
(6) detect, analyze, characterize
The pattern, color and luster, thing phase, the microstructure mechanical property that the carbon fiber of preparation are strengthened to aluminum-based layered composition board detect, analyze and characterize;
Carry out microstructure material phase analysis with scanning electronic microscope and x x ray diffractometer x;
Carry out strength test with electronic universal tester;
Conclusion: it is nine layers of structure that carbon fiber strengthens aluminum-based layered composition board
That is: graphite ply of paper, aluminium lamination, carbon fibre cloth layer, aluminium lamination, carbon fibre cloth layer, aluminium lamination, carbon fibre cloth layer, aluminium lamination, graphite ply of paper; Aluminium powder infiltrates carbon fibre cloth layer in heating, vibration, pressure process, and the tensile strength that carbon fiber strengthens aluminum-based layered composition board reaches 144MPa, and elongation reaches 21.2%;
(7) packing and storing
The carbon fiber of preparation is strengthened to aluminum-based layered composition board and pack with soft material, be stored in dried and clean environment, waterproof, protection against the tide, anti-oxidation, anti-acid-alkali salt to corrode, 20 ℃ of storing temps, relative humidity≤10%.
2. a kind of carbon fiber according to claim 1 strengthens the preparation method of aluminum-based layered composition board, it is characterized in that: prepare carbon fiber enhancing aluminum-based layered composition board and carry out on heating vibration pressing machine, be in open-close type groove hot pressing die, under heating, vibration, pressure state, complete;
Pressing machine (1) is vertical, and bottom is base (2), and left and right portion vertically arranges left column (7), right column (8), is footstock (3) on left and right pillar (7), (8) top, is provided with pressure motor (4) on footstock (3) top, on base (2) top, shaking table (9) is set, at the upper at right angle setting open-close type groove hot pressing die (13) of shaking table (9), in open-close type groove hot pressing die (13), put the first resistor (11), put spill lower bolster (15) on the first resistor (11) top, be aluminum-based layered composition board (14) on spill lower bolster (15) top, and pushed down by upper padding plate (16), in upper padding plate (16) upper vertical, the second resistance heater (12) is installed, at the upper vertical upper holder block (10) of putting of the second resistance heater (12), upper holder block (10) top is pushed down by seaming chuck (6), seaming chuck (6) connects the pressure motor (4) on top, the distance of adjusting up and down of seaming chuck (6) is adjusted by the lifting handle (5) of sidepiece, be provided with electric control box (17) in the left side of pressing machine (1), on electric control box (17), be provided with display screen (18), pilot lamp (19), power switch (20), pressure motor switch (21), the first resistive heating modulator (22), the second resistive heating modulator (23), shaking table modulator (24), electric control box (17) is connected by wire (25) with pressure motor (4), shaking table (9), the first resistance heater (11), the second resistance heater (12).
3. a kind of carbon fiber according to claim 1 strengthens the preparation method of aluminum-based layered composition board, it is characterized in that: it is nine layers of structure that described carbon fiber strengthens aluminum-based layered composition board, the first layer is graphite ply of paper (I), the second layer is aluminium lamination (II), the 3rd layer is carbon fibre cloth layer (III), the 4th layer is aluminium lamination (IV), layer 5 is carbon fibre cloth layer (V), layer 6 is aluminium lamination (VI), layer 7 is carbon fibre cloth layer (VII), the 8th layer is aluminium lamination (VIII), and the 9th layer is graphite ply of paper (IX).
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| CN106111935B (en) * | 2016-06-24 | 2017-12-29 | 太原理工大学 | A kind of preparation method of reinforced type magnesium yttrium neodymium alloy laminated composite plate |
| CN111943701B (en) * | 2020-07-27 | 2022-08-09 | 赛福纳米科技(徐州)有限公司 | Hot-pressing sintering process for improving compactness of ceramic material |
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| CN102166846A (en) * | 2010-12-15 | 2011-08-31 | 太原理工大学 | Preparation method of magnesium-aluminum layered composite plate |
| CN102658703A (en) * | 2012-04-13 | 2012-09-12 | 太原理工大学 | Preparation method of carbon fiber reinforced magnesium-based composite board |
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| CN102166846A (en) * | 2010-12-15 | 2011-08-31 | 太原理工大学 | Preparation method of magnesium-aluminum layered composite plate |
| CN102658703A (en) * | 2012-04-13 | 2012-09-12 | 太原理工大学 | Preparation method of carbon fiber reinforced magnesium-based composite board |
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