CN106893955A - A kind of electromagnetic forming device and the method that fiber-reinforced metal matrix composite is prepared using the device - Google Patents

A kind of electromagnetic forming device and the method that fiber-reinforced metal matrix composite is prepared using the device Download PDF

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Publication number
CN106893955A
CN106893955A CN201710167125.7A CN201710167125A CN106893955A CN 106893955 A CN106893955 A CN 106893955A CN 201710167125 A CN201710167125 A CN 201710167125A CN 106893955 A CN106893955 A CN 106893955A
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China
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crucible
coil
cavity plate
discharge
fixed
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CN106893955B (en
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胡建华
刘运展
黄尚宇
孙世民
王斌
胡明志
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Wuhan University of Technology WUT
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Wuhan University of Technology WUT
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    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C47/00Making alloys containing metallic or non-metallic fibres or filaments
    • C22C47/08Making alloys containing metallic or non-metallic fibres or filaments by contacting the fibres or filaments with molten metal, e.g. by infiltrating the fibres or filaments placed in a mould

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)

Abstract

A kind of method that fiber-reinforced metal matrix composite is prepared the present invention relates to electromagnetic forming device and using the device, the electromagnetic forming device includes lower platen (7), coil charge and discharge device, coil fixing device, crucible (10), crucible positioner, cavity plate (13) and cavity plate fastener;The crucible positioner includes the crucible fixed plate (5) for support crucible (10), crucible fixed plate (5) is provided with endoporus, inner port edge is mutually fitted with crucible (10) outside, crucible positioner is used to control the setting height(from bottom) of crucible, makes the spacing between crucible (10) bottom and discharge coil (9) be 1 3mm;The cavity plate (13) is semi-cylindrical, and Open Side Down, and its lower edge can fasten to form confined space with edge on crucible (10);The cavity plate fastener is used to fix cavity plate (13), and applies pressure to cavity plate (13), cavity plate (13) is closely fastened with crucible (10).

Description

A kind of electromagnetic forming device and fibre reinforced metal-based composite wood is prepared using the device The method of material
Technical field
The invention belongs to metal-base composites material molding technology field, and in particular to a kind of electromagnetic forming device and profit The method that fiber-reinforced metal matrix composite is prepared with the device.
Background technology
The features such as fiber-reinforced metal matrix composite is except with high specific strength, high ratio modulus and low thermal coefficient of expansion Outward, also with being resistant to higher temperature, anti-flaming, transverse strength and rigidity is high, nonhygroscopic, high heat conduction and conductance, radiation resistance Well, the advantages of not releasing gas when in use, it is shown that the characteristics of polymer matrix composites are incomparable, has obtained grinding both at home and abroad The great attention of the person of studying carefully.
There are aluminium, copper, titanium, nickel etc. currently used for the metal for preparing fiber-reinforced metal matrix composite.Use enhancing Fiber has boron fibre, silicon carbide fibre, carbon fiber and wire fibers etc., the preparation method of fiber-reinforced metal matrix composite Mainly there is legal, vacuum pressure infiltration method of squeeze casting method, diffusion junctions etc..Extrusion casint, gold is put into by the preform of fiber In category mould, appropriate heating, the parent metal of pressurization immersion fusing is complex-shaped so as to obtain in its solidification of ordering that adds high pressure Composite, the method cycle is short, production efficiency is high.But if pressure is excessive in the method, easy damaged fiber;Pressure is too small, Then liquid metal is difficult to be infiltrated up in fiber completely.And if temperature conditionss selection is incorrect, the parent metal of fusing can be with Fiber produces serious interfacial reaction, damages fiber.Filament after the legal use metal foil of diffusion junctions and surface treated or By certain requirement stacking, mutually pressure is routed to certain thickness to the laminate of composite silk or the unidirectional fibre arrangement for preparing To prepare composite material prefabricated component, under inert gas shielding or under high vacuum condition, reinforcement fiber is made by high temperature, high pressure With matrix alloy connecting shaping, the method prepares that composite equipment cost is high and complex process, and its practical application is subject to a lot Limitation.Vacuum pressure infiltration method is that fiber preform is put into mould, by device vacuum sealing, by prefabricated component and Metal Substrate Body is heated separately to required temperature and applies pressure by inert gas after being incubated, and liquid metal is pressed into carbon fiber preform In.The method equipment requirement is high, composite volume size that is preparing is limited by vacuum equipment size again.
Existing fiber-reinforced metal matrix composite manufacturing process Presence of an interface reacts whard to control, fibre damage or system The shortcomings of standby high cost, equipment and complex process.
The content of the invention
The technical problems to be solved by the invention are directed to above shortcomings in the prior art, there is provided a kind of electromagnetism into The method that shape dress is put and fiber-reinforced metal matrix composite is prepared using the device, device is simple, when being shaped using the device Between it is extremely short (up to 10-5Second level), solve the problems, such as that pressure sintering needs long-time pressurize, production efficiency not high, additionally, due to metal Liquid and fibrous material time of contact are short, alleviate the interfacial reaction problem present in casting die, and the method only needs electromagnetism It is low that former and heating furnace, technique and equipment cost compare vacuum pressure infiltration method.
In order to solve the above technical problems, the technical scheme that the present invention is provided is:
A kind of electromagnetic forming device is provided, for preparing fiber-reinforced metal matrix composite, the electromagnetic forming device Including the fastening of lower platen 7, coil charge and discharge device, coil fixing device, crucible 10, crucible positioner, cavity plate 13 and cavity plate Device;
The coil charge and discharge device includes discharge coil 9;
The crucible positioner includes the crucible fixed plate 5 for support crucible 10, and crucible fixed plate 5 is provided with interior Hole, inner port edge and the outside of crucible 10 are mutually fitted, and crucible positioner is used to control the setting height(from bottom) of crucible, make the bottom of crucible 10 with Spacing between discharge coil 9 is 1-3mm;
The cavity plate 13 is semi-cylindrical, and Open Side Down, and its lower edge can fasten to form confined space with edge on crucible 10;
The cavity plate fastener is used to fix cavity plate 13, and applies pressure to cavity plate 13, makes cavity plate 13 tight with crucible 10 Close fastening.
By such scheme, the lower platen 7 is provided with cylinder shape groove;
The coil charge and discharge device also includes and the capacitor 18 and the confession in parallel with capacitor 18 that discharge coil 9 is connected Power supply, wherein power supply are connected with charging control switch 19, and discharge coil 9 is connected with discharge control switch 17;
The coil fixing device includes the concentric coil rack 8 with cylinder shape groove and coil base 6, the electric discharge Coil 9 is embedded in and is fixed in the groove of coil rack 8, and coil rack 8 is embedded in and is fixed in the groove of coil base 6, line Circle base 6 is embedded in and is fixed in the circular groove of lower platen 7.
By such scheme, the crucible positioner is also including being fixed on lower platen 7, along the central axis of discharge coil 9 The two root posts 21 being symmetrically installed, crucible fixed plate 5 is connected by screw connection manner with the upper end of column 21, the regulation earthenware of blending bolt 14 The setting height(from bottom) of crucible fixed plate 5;
The cavity plate fastener include top board 3, and be fixed on lower platen 7, along the central axis pair of discharge coil 9 Two guide pillars 4 installed, top board 3 are claimed to be fixed on the upper end of guide pillar 4 by bolt 1 and nut 2, the cavity plate 13 is fixed on pressure The lower section of plate 3, guide pillar 4 is separately mounted to the side of lower platen 7 four with column 21.
By such scheme, the cavity plate fastener includes top board 3 and two connecting poles 22, and the cavity plate 13 is fixed on The lower section of top board 3, top board 3 and crucible fixed plate 5 are arranged on connecting pole 22 by screw connection manner respectively;
The cavity plate fastener also includes the die shank 16 fixed with top board 3;
The crucible positioner also includes 2 cushion blocks 15 of tubulose, and the internal diameter of cushion block 15 is more than the external diameter of connecting pole 22, connection The bottom of post 22 is nested in cushion block 15.
The present invention also provides the method that fiber-reinforced metal matrix composite is prepared using said apparatus, and its step is as follows:
1) solid metallic or alloy are placed in crucible 10, and crucible 10 are placed in high temperature furnace, be passed through inert gas, Solid metallic or alloy melting are heated to after molten metal, in the endoporus that crucible 10 is placed in crucible fixed plate 5, to be determined with crucible Position device adjusts the setting height(from bottom) of crucible 10, and covers the flaky fibrous material of crucible surface along placement on crucible 10, then By the lower edge of cavity plate 13 just to edge on crucible 10, flanging is carried out along to flaky fibrous material with the lower edge of cavity plate 13 and crucible 10, and It is fixed with cavity plate fastener;
2) capacitor 18 is charged with power supply, after the voltage of capacitor 18 reaches shaping voltage, disconnection is filled Electric control switch 19, closes discharge control switch 17, and capacitor 18 discharges discharge coil 9, and molten metal is produced in coil discharge Electromagnetic force under motion upwards at a high speed, with flaky fibrous material high-speed impact and adhesion, obtain fibre reinforced metal-based multiple Condensation material.
Preferably, the shaping voltage is 500-640V.
By such scheme, step 1) solid metallic or alloy be aluminium, magnesium, copper, titanium, almag, alusil alloy, aluminium One kind in copper alloy;Step 1) flaky fibrous material be carbon fiber or glass fibre.
One of which is as follows using the method and step that said apparatus prepare fiber-reinforced metal matrix composite:
1) solid metallic or alloy are placed in crucible 10, and crucible 10 are placed in high temperature furnace, be passed through inert gas, It is heated to after solid metallic or alloy melting be molten metal, in the endoporus that crucible 10 is placed in crucible fixed plate 5, with bolt 14 The setting height(from bottom) of regulation crucible fixed plate 5, then then will on crucible 10 along the flaky fibrous material for placing covering crucible surface The lower edge of cavity plate 13 just to edge on crucible 10, flanging is carried out with the lower edge of cavity plate 13 and crucible 10 along to flaky fibrous material, is used in combination Top board 3 is fixed on the upper end of guide pillar 4 by bolt 1 and nut 2;
2) capacitor 18 is charged with power supply, after the voltage of capacitor 18 reaches shaping voltage, disconnection is filled Electric control switch 19, closes discharge control switch 17, and capacitor 18 discharges discharge coil 9, and molten metal is produced in coil discharge Electromagnetic force under motion upwards at a high speed, with flaky fibrous material high-speed impact and adhesion, obtain fibre reinforced metal-based multiple Condensation material.
Another is as follows using the method and step that said apparatus prepare fiber-reinforced metal matrix composite:
1) solid metallic or alloy are placed in crucible 10, and crucible 10 are placed in high temperature furnace, be passed through inert gas, Solid metallic or alloy melting are heated to after molten metal, in the endoporus that crucible 10 is placed in crucible fixed plate 5, crucible to be consolidated Fixed board 5 is fixed on connecting pole 22, and along the flaky fibrous material for placing covering crucible surface on crucible 10, then by cavity plate 13 lower edges just to edge on crucible 10, flanging are carried out with the lower edge of cavity plate 13 and crucible 10 along to flaky fibrous material, then will be upper Pressing plate 3 is fixed on two tops of connecting pole 22, then nests into cushion block 15 bottom of connecting pole 22, then with forcing press pair with it is upper The die shank 16 that pressing plate 3 is fixed applies downward pressure;
2) capacitor 18 is charged with power supply, after the voltage of capacitor 18 reaches shaping voltage, disconnection is filled Electric control switch 19, closes discharge control switch 17, and capacitor 18 discharges discharge coil 9, and molten metal is produced in coil discharge Electromagnetic force under motion upwards at a high speed, with flaky fibrous material high-speed impact and adhesion, obtain fibre reinforced metal-based multiple Condensation material.
The present invention also provides the fiber-reinforced metal matrix composite prepared according to the above method, the fiber reinforcement Metal-base composites thickness is 0.5-2mm.
The beneficial effects of the present invention are:1st, the present invention is shaped using discharge coil instead of punch-pin, efficiently solves tradition Punch-die class fit problem, punch-die wear problem in press forming method, and due to being not required to power transmission medium, in the absence of machine Tool is contacted, and process will not be stained molten metal;2nd, compared with existing Carbon Fibre Reinforced Metal Matrix Composites forming technique, this Invention combines electromagnetic pulse forming two-forty shaping characteristic, and molten metal is upward at a high speed under the electromagnetic force that coil discharge is produced Motion, with flaky fibrous material high-speed impact and adhesion, molten metal is extremely short with the fiber contacts time, reduces metal and fiber knot The interfacial reaction produced during conjunction, effectively slow down the generation of interfacial brittle phase, improve the performance of composite;3rd, the present invention into High voltage transient is produced during shape makes molten metal be more easy to wetting fibre material, and because in the absence of static pressure, fiber is not easily susceptible to Pressure is destroyed;4th, the present invention uses electro-magnetic forming, and curring time is extremely short, can greatly shorten the cycle of shaping, makes production efficiency Greatly improve, be more suitable for producing in enormous quantities.
Brief description of the drawings
Fig. 1 is the overall schematic of electromagnetic forming device described in the embodiment of the present invention 1;
Fig. 2 is the left view of electromagnetic forming device described in embodiment 1;
Fig. 3 is the overall schematic of electromagnetic forming device described in embodiment 2;
Fig. 4 is the photo of the carbon fiber reinforced aluminum matrix composite prepared by embodiment 1;
Fig. 5 is the photo of the carbon fiber reinforced aluminum matrix composite prepared by embodiment 2;
Fig. 6 is the photo of the carbon fiber reinforced aluminum matrix composite prepared by embodiment 3.
Description of reference numerals:
1- bolts:2- nuts;3- top boards;4- guide pillars;5- crucible fixed plates;6- coil bases;7- lower platens;8- coils Skeleton;9- discharge coils;10- crucibles;11- molten metals;12- works out carbon cloth;13- cavity plates;14- bolts;15- cushion blocks;16- Die shank;17- discharge control switches;18- capacitors;19- charging control switches;20- charge circuit motors;21- columns;22- connects Connect post.
Specific embodiment
To make those skilled in the art more fully understand technical scheme, the present invention is made below in conjunction with the accompanying drawings into One step is described in detail.
Embodiment 1
As shown in Figure 1, 2, a kind of fiber-reinforced metal matrix composite electromagnetic pulse forming device of present embodiment.Institute Stating electromagnetic forming device includes lower platen 7, coil charge and discharge device, coil fixing device, crucible 10, crucible positioner, recessed Mould 13 and cavity plate fastener.Lower platen 7 is provided with cylinder shape groove.Coil charge and discharge device includes discharge coil 9 and electric discharge The capacitor 18 and the power supply in parallel with capacitor 18 of the series connection of coil 9, wherein power supply are gone here and there with charging control switch 19 Connection, discharge coil 9 is connected with discharge control switch 17.Coil fixing device includes the concentric coil rack with cylinder shape groove 8 and coil base 6, the discharge coil 9 is embedded in and is fixed in the groove of coil rack 8, and coil rack 8 is embedded in and is fixed on In the groove of coil base 6, coil base 6 is embedded in and is fixed in the circular groove of lower platen 7.Crucible positioner includes using In the crucible fixed plate 5 of support crucible 10, crucible fixed plate 5 is provided with endoporus, and inner port edge is mutually fitted with the outside of crucible 10, crucible Positioner is used to control the setting height(from bottom) of crucible, makes the spacing between the bottom of crucible 10 and discharge coil 9 be 1mm.It is described recessed Mould 13 is semi-cylindrical, and Open Side Down, and its lower edge can fasten to form confined space with edge on crucible 10.The cavity plate fastener For fixing cavity plate 13, and apply pressure to cavity plate 13, cavity plate 13 is closely fastened with crucible 10.
Crucible positioner also includes being fixed on lower platen 7, be symmetrically installed along the central axis of discharge coil 9 two stand Post 21, crucible fixed plate 5 is connected by screw connection manner with the upper end of column 21, and the regulation crucible of blending bolt 14 fixed plate 5 installs height Degree.The cavity plate fastener includes top board 3, and is fixed on lower platen 7, symmetrically pacifies along the central axis of discharge coil 9 Two guide pillars 4 of dress, top board 3 is fixed on the upper end of guide pillar 4 by bolt 1 and nut 2, and the cavity plate 13 is fixed on top board 3 Lower section, guide pillar 4 is separately mounted to the side of lower platen 7 four with column 21.
Present embodiment prepares fiber-reinforced metal matrix composite using above-mentioned electromagnetic pulse forming device, specially makes The carbon fiber reinforced aluminum matrix composite of standby thickness 2mm, reinforcement uses the carbon cloth of two-way braiding, its model C-03P- 180, monofilament is T300, about 6-7 μm of diameter, and density is 1.78gcm3, face weight density is 120gm2, the stretching of reinforcement Intensity is 3530MPa, and elastic modelling quantity is 230GPa.Metallic matrix using aluminium content 99.9% aluminium powder and content of magnesium 99.9% Magnesium powder, matches as alloy matrix aluminum that magnesium mass fraction is 5%.Methods described comprises the following steps:
1) solid metallic or alloy are placed in crucible 10, and crucible 10 is placed in high temperature furnace, be passed through nitrogen, nitrogen Flow velocity 5L/min, is heated to 740 DEG C, after alloy melting is molten metal, in the endoporus that crucible 10 is placed in crucible fixed plate 5, The setting height(from bottom) of crucible fixed plate 5 is adjusted with bolt 14, and crucible surface is covered along flaky fibrous material is placed on crucible 10, Then the height of top board 3 is adjusted by bolt 1 and nut 2, makes the lower edge of cavity plate 13 for being fixed on the lower section of top board 3 just to crucible Edge on 10, and carry out flanging along to flaky fibrous material with the lower edge of cavity plate 13 and crucible 10;
2) capacitor 18 is charged with power supply, this example discharge capacity is 12300 μ F, discharge voltage is 500V, discharge energy is 1.54kJ, after the voltage of capacitor 18 reaches 500V, disconnects charging control switch 19, closure electric discharge Controlling switch 17, capacitor 18 discharges discharge coil 9, and molten metal is upward at a high speed under the electromagnetic force that coil discharge is produced Motion, with flaky fibrous material high-speed impact and adhesion, obtains fiber-reinforced metal matrix composite.Gained is composite formed Part photo is as shown in figure 4, its thickness is 2mm.
Embodiment 2
As shown in figure 3, a kind of fiber-reinforced metal matrix composite electromagnetic pulse forming device of present embodiment.It is described Electromagnetic forming device includes lower platen 7, coil charge and discharge device, coil fixing device, crucible 10, crucible positioner, cavity plate 13 and cavity plate fastener.Lower platen 7 is provided with cylinder shape groove.Coil charge and discharge device includes discharge coil 9 and discharge lines The capacitor 18 and the power supply in parallel with capacitor 18 of the series connection of circle 9, wherein power supply are connected with charging control switch 19, Discharge coil 9 is connected with discharge control switch 17.Coil fixing device include the concentric coil rack 8 with cylinder shape groove and Coil base 6, the discharge coil 9 is embedded in and is fixed in the groove of coil rack 8, and coil rack 8 is embedded in and fixed online Enclose in the groove of base 6, coil base 6 is embedded in and is fixed in the circular groove of lower platen 7.Crucible positioner includes being used for The crucible fixed plate 5 of support crucible 10, crucible fixed plate 5 is provided with endoporus, and inner port edge is mutually fitted with the outside of crucible 10, and crucible is fixed Position device is used to control the setting height(from bottom) of crucible, makes the spacing between the bottom of crucible 10 and discharge coil 9 be 3mm.The cavity plate 13 is semi-cylindrical, and Open Side Down, and its lower edge can fasten to form confined space with edge on crucible 10.The cavity plate fastener is used In fixed cavity plate 13, and apply pressure to cavity plate 13, cavity plate 13 is closely fastened with crucible 10.
Cavity plate fastener includes top board 3 and two connecting poles 22, and the cavity plate 13 is fixed on the lower section of top board 3, on Pressing plate 3 and crucible fixed plate 5 are arranged on connecting pole 22 by screw connection manner respectively.The cavity plate fastener also include with it is upper The die shank 16 that pressing plate 3 is fixed.The crucible positioner also includes 2 cushion blocks 15 of tubulose, and the internal diameter of cushion block 15 is more than connecting pole 22 external diameters, the bottom of connecting pole 22 is nested in cushion block 15.
Fiber-reinforced metal matrix composite electromagnetism arteries and veins is prepared using electromagnetic pulse forming device realization described in the present embodiment The method of punching forming, specifically prepares the carbon fiber reinforced aluminum matrix composite of thickness 0.5mm, and reinforcement uses the carbon of two-way braiding Fiber cloth, its model C-03P-180, monofilament is T300, about 6-7 μm of diameter, and density is 1.78gcm3, face weight density is 120g·m2, the tensile strength of reinforcement is 3530MPa, and elastic modelling quantity is 230GPa.Metallic matrix uses aluminium content 99.9% Aluminium powder and content of magnesium 99.9% magnesium powder, match as alloy matrix aluminum that magnesium mass fraction is 5%.Methods described includes as follows Step:
1) solid metallic or alloy are placed in crucible 10, and crucible 10 is placed in high temperature furnace, be passed through nitrogen, nitrogen Flow velocity 5L/min, is heated to 740 DEG C, after alloy melting is molten metal, in the endoporus that crucible 10 is placed in crucible fixed plate 5, And crucible surface is covered along flaky fibrous material is placed on crucible 10, crucible fixed plate 5 is fixed on connecting pole 22, so The lower edge of cavity plate 13 is carried out into flanging with the lower edge of cavity plate 13 and crucible 10 just to edge on crucible 10 along to flaky fibrous material afterwards, Then top board 3 is fixed on two tops of connecting pole 22, is then nested into cushion block 15 bottom of connecting pole 22, then use pressure Machine applies downward pressure to die shank 16;
2) capacitor 18 is charged with power supply, this example discharge capacity is 12300 μ F, discharge voltage is 570V, discharge energy is 2.00kJ, after the voltage of capacitor 18 reaches 570V, disconnects charging control switch 19, closure electric discharge Controlling switch 17, capacitor 18 discharges discharge coil 9, and molten metal is upward at a high speed under the electromagnetic force that coil discharge is produced Motion, with flaky fibrous material high-speed impact and adhesion, obtains fiber-reinforced metal matrix composite.
The present embodiment gained shaped composite piece photo is as shown in figure 5, its thickness is 0.5mm.
Embodiment 3
The present embodiment prepares fiber-reinforced metal matrix composite, undocumented skill using device same as Example 1 Art feature is same as Example 1, and difference is step 2) in discharge capacity be 12300 μ F, discharge voltage be 640V, electric discharge Energy is 2.52kJ.Spacing between the bottom of crucible 10 and discharge coil 9 is 3mm.The present embodiment gained shaped composite piece Photo is as shown in fig. 6, its thickness is 0.5mm.

Claims (9)

1. a kind of electromagnetic forming device, for preparing fiber-reinforced metal matrix composite, it is characterised in that:The electro-magnetic forming Device includes lower platen (7), coil charge and discharge device, coil fixing device, crucible (10), crucible positioner, cavity plate (13) And cavity plate fastener;
The coil charge and discharge device includes discharge coil (9);
The crucible positioner includes the crucible fixed plate (5) for support crucible (10), and crucible fixed plate (5) is provided with interior Hole, inner port edge is mutually fitted with crucible (10) outside, and crucible positioner is used to control the setting height(from bottom) of crucible, makes crucible (10) bottom Spacing between portion and discharge coil (9) is 1-3mm;
The cavity plate (13) is semi-cylindrical, and Open Side Down, and its lower edge can fasten to form confined space with edge on crucible (10);
The cavity plate fastener is used to fix cavity plate (13), and applies pressure to cavity plate (13), makes cavity plate (13) and crucible (10) closely fasten.
2. electromagnetic forming device according to claim 1, it is characterised in that:It is recessed that the lower platen (7) is provided with cylinder Groove;
The coil charge and discharge device also includes and the capacitor (18) that discharge coil (9) is connected and in parallel with capacitor (18) Power supply, wherein power supply are connected with charging control switch (19), and discharge coil (9) is gone here and there with discharge control switch (17) Connection;
The coil fixing device includes the concentric coil rack (8) with cylinder shape groove and coil base (6), the electric discharge Coil (9) is embedded and is fixed in the groove of coil rack (8), and coil rack (8) is embedded and is fixed on the recessed of coil base (6) In groove, coil base (6) is embedded and is fixed in the circular groove of lower platen (7).
3. electromagnetic forming device according to claim 1 and 2, it is characterised in that:The crucible positioner also includes solid The two root posts (21) for being scheduled on lower platen (7), being symmetrically installed along discharge coil (9) central axis, crucible fixed plate (5) passes through Screw connection manner is connected with column (21) upper end, blending bolt (14) regulation crucible fixed plate (5) setting height(from bottom);
The cavity plate fastener include top board (3), and be fixed on lower platen (7), along discharge coil (9) central axis Two guide pillars (4) being symmetrically installed, top board (3) is fixed on guide pillar (4) upper end, the cavity plate by bolt (1) and nut (2) (13) top board (3) lower section is fixed on, guide pillar (4) is separately mounted to the side of lower platen (7) four with column (21).
4. electromagnetic forming device according to claim 1 and 2, it is characterised in that:The cavity plate fastener includes upper pressure Plate (3) and two connecting poles (22), the cavity plate (13) are fixed on top board (3) lower section, top board (3) and crucible fixed plate (5) it is arranged on connecting pole (22) by screw connection manner respectively;
The cavity plate fastener also includes the die shank (16) fixed with top board (3);
The crucible positioner also includes 2 cushion blocks (15) of tubulose, and cushion block (15) internal diameter is more than connecting pole (22) external diameter, even Post (22) bottom is connect to be nested in cushion block (15).
5. a kind of method that utilization claim 2 described device prepares fiber-reinforced metal matrix composite, it is characterised in that step It is rapid as follows:
1) solid metallic or alloy are placed in crucible (10), and crucible (10) are placed in high temperature furnace, be passed through inert gas, Solid metallic or alloy melting are heated to after molten metal, in the endoporus that crucible (10) is placed in crucible fixed plate (5), to use earthenware The setting height(from bottom) of crucible positioner adjustment crucible (10), and along the sheet-like fiber material for placing covering crucible surface on crucible (10) Material, then by cavity plate (13) lower edge just to edge on crucible (10), with cavity plate (13) lower edge and crucible (10) along to sheet-like fiber Material carries out flanging, and is fixed with cavity plate fastener;
2) capacitor (18) is charged with power supply, after the voltage of capacitor (18) reaches shaping voltage, disconnection is filled Electric control switch (19), closure discharge control switch (17), capacitor (18) discharges discharge coil (9), and molten metal is in coil Motion upwards at a high speed under the electromagnetic force that electric discharge is produced, with the simultaneously adhesion of flaky fibrous material high-speed impact, obtains fiber reinforcement Metal-base composites.
6. method according to claim 5, it is characterised in that:Step 1) solid metallic or alloy be aluminium, magnesium, copper, One kind in titanium, almag, alusil alloy, aluminium copper;Step 1) flaky fibrous material be carbon fiber or glass fibers Dimension.
7. a kind of method that utilization claim 3 described device prepares fiber-reinforced metal matrix composite, it is characterised in that step It is rapid as follows:
1) solid metallic or alloy are placed in crucible (10), and crucible (10) are placed in high temperature furnace, be passed through inert gas, Solid metallic or alloy melting are heated to after molten metal, in the endoporus that crucible (10) is placed in crucible fixed plate (5), to use spiral shell Bolt (14) adjusts crucible fixed plate (5) setting height(from bottom), then along the sheet-like fiber for placing covering crucible surface on crucible (10) Material, then by cavity plate (13) lower edge just to edge on crucible (10), with cavity plate (13) lower edge and crucible (10) along fine to sheet Dimension material carries out flanging, and top board (3) is fixed on guide pillar (4) upper end by blending bolt (1) and nut (2);
2) capacitor (18) is charged with power supply, after the voltage of capacitor (18) reaches shaping voltage, disconnection is filled Electric control switch (19), closure discharge control switch (17), capacitor (18) discharges discharge coil (9), and molten metal is in coil Motion upwards at a high speed under the electromagnetic force that electric discharge is produced, with the simultaneously adhesion of flaky fibrous material high-speed impact, obtains fiber reinforcement Metal-base composites.
8. a kind of method that utilization claim 4 described device prepares fiber-reinforced metal matrix composite, it is characterised in that step It is rapid as follows:
1) solid metallic or alloy are placed in crucible (10), and crucible (10) are placed in high temperature furnace, be passed through inert gas, It is heated to after solid metallic or alloy melting be molten metal, in the endoporus that crucible (10) is placed in crucible fixed plate (5), by earthenware Crucible fixed plate (5) is fixed on connecting pole (22), and along the flaky fibrous material for placing covering crucible surface on crucible (10), Then by cavity plate (13) lower edge just to edge on crucible (10), with cavity plate (13) lower edge and crucible (10) along to flaky fibrous material Flanging is carried out, top board (3) is then fixed on two connecting pole (22) tops, connecting pole (22) bottom is then nested into pad In block (15), then apply downward pressure with the fixed die shank (16) of top board (3) with forcing press pair;
2) capacitor (18) is charged with power supply, after the voltage of capacitor (18) reaches shaping voltage, disconnection is filled Electric control switch (19), closure discharge control switch (17), capacitor (18) discharges discharge coil (9), and molten metal is in coil Motion upwards at a high speed under the electromagnetic force that electric discharge is produced, with the simultaneously adhesion of flaky fibrous material high-speed impact, obtains fiber reinforcement Metal-base composites.
9. a kind of fiber-reinforced metal matrix composite prepared according to any methods describeds of claim 5-8, its feature It is that the fiber-reinforced metal matrix composite thickness is 0.5-2mm.
CN201710167125.7A 2017-03-20 2017-03-20 A kind of electromagnetic forming device and the method for preparing fiber-reinforced metal matrix composite using the device Expired - Fee Related CN106893955B (en)

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CN108165909A (en) * 2017-11-30 2018-06-15 富通昭和线缆(天津)有限公司 A kind of copper bar coating unit and use its copper bar painting method
CN108546892A (en) * 2018-05-25 2018-09-18 武汉理工大学 A kind of electromagnetic pulse forming device and method of aluminum base carbon fiber enhancing composite material

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CN103861932A (en) * 2014-04-01 2014-06-18 湖南大学 Forming device and method of thermoplasticity glass fiber reinforcement aluminum alloy laminate plate
CN103935049A (en) * 2014-04-01 2014-07-23 湖南大学 Laminated plate forming device and method based on electro-hydraulic forming

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CN202411381U (en) * 2012-02-06 2012-09-05 湖南航天工业总公司 Molding device of aluminum base silicon carbide particles, crystal whiskers or carbon fiber reinforced composite materials
CN103861932A (en) * 2014-04-01 2014-06-18 湖南大学 Forming device and method of thermoplasticity glass fiber reinforcement aluminum alloy laminate plate
CN103935049A (en) * 2014-04-01 2014-07-23 湖南大学 Laminated plate forming device and method based on electro-hydraulic forming

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108165909A (en) * 2017-11-30 2018-06-15 富通昭和线缆(天津)有限公司 A kind of copper bar coating unit and use its copper bar painting method
CN108546892A (en) * 2018-05-25 2018-09-18 武汉理工大学 A kind of electromagnetic pulse forming device and method of aluminum base carbon fiber enhancing composite material

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