CN110125367A - A kind of device being used to prepare more metal fiber composites and control method - Google Patents
A kind of device being used to prepare more metal fiber composites and control method Download PDFInfo
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- CN110125367A CN110125367A CN201910354960.0A CN201910354960A CN110125367A CN 110125367 A CN110125367 A CN 110125367A CN 201910354960 A CN201910354960 A CN 201910354960A CN 110125367 A CN110125367 A CN 110125367A
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- crucible
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- working chamber
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- fiber composites
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D18/00—Pressure casting; Vacuum casting
- B22D18/06—Vacuum casting, i.e. making use of vacuum to fill the mould
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/04—Influencing the temperature of the metal, e.g. by heating or cooling the mould
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C47/00—Making alloys containing metallic or non-metallic fibres or filaments
- C22C47/08—Making 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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- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
Abstract
The invention belongs to the technical fields of material processing, disclose a kind of device for being used to prepare more metal fiber composites, including working chamber, it is provided with below the working chamber and is cooled and shaped room, side is provided with stirring rod, the working chamber is connected to by ventilation pipe with mechanical pump, its bottom is provided with the first crucible and the second crucible, its side wall is provided with blow vent, control valve is provided on the blow vent, the cooling and shaping chamber interior is provided with the mold for preparing more metal fiber composites, second crucible is for carrying the aluminium alloy after melting, its bottom is connected to the type chamber of mold, the intracavitary portion of type is provided with more metallic fibers along its axial direction, first crucible is used to carry the metallic particles or powder to melting, the mechanical pump is for vacuumizing working chamber, and then the type chamber of mold is vacuumized.Also disclose a kind of control method of device for being used to prepare more metal fiber composites.
Description
Technical field
The present invention relates to the technical field of material processing more particularly to a kind of it is used to prepare more metal fiber composites
Device and control method.
Background technique
In recent years, with aerospace, the high speed development of apparatus of transport, pole is shown to lightweight, high-strength material
Big demand.Especially in aerospace industry, components and the fastener requirement material itself for preparing complicated shape have
Higher tension, bending strength.
Currently, for obtain have higher-strength material, prepared using composite material complicated shape components and
Fastener.In most cases, it is produced using advanced manufacturing process such as process for suction casting, but the success rate of the technique is not
Height, and can have the defects of shrinkage cavity and porosity inside obtained components.Therefore, it is badly in need of changing existing processing method
Come in prepare the material to accord with the demands of the market.
Summary of the invention
The present invention provides a kind of device for being used to prepare more metal fiber composites and control methods, solve existing
Lightweight, the processing method success rate of Materials with High Strength are low, can have the problems such as shrinkage cavity and porosity inside the components of processing.
The present invention can be achieved through the following technical solutions:
A kind of device being used to prepare more metal fiber composites, including working chamber, the lower section setting of the working chamber
There is cooling and shaping room, side is provided with stirring rod, and the working chamber is connected to by ventilation pipe with mechanical pump, and bottom is provided with
First crucible and the second crucible, side wall are provided with blow vent, and control valve, the cooling and shaping are provided on the blow vent
Chamber interior is provided with the mold for preparing more metal fiber composites, and the second crucible is for carrying the aluminium alloy after melting, bottom
Portion is connected to the type chamber of mold, and the type chamber is internally provided with more metallic fibers, and first crucible is for carrying to melting
Metallic particles or powder, the mechanical pump vacuumizes the type chamber of mold for vacuumizing to working chamber.
Further, the mold includes upper die and lower die, and it is logical that first extended to bottom is provided at the top of the upper mold
Hole, bottom offer the first groove with the form fit of more metal fiber composites to be prepared, and the one of the first through hole
End is connected to the bottom of the second crucible, and the other end is connected to the first groove, is offered at the top of the lower die and mostly gold to be prepared
Belong to the second groove of the form fit of fibrous composite, second groove and the first groove cooperate collectively constitute with it is to be prepared
The type chamber of the form fit of more metal fiber composites.
Further, along the axial direction setting of type chamber, both ends are arranged by thin plate in type chamber the more metallic fibers
On two opposite lateral walls, it is provided with multiple through-holes and the first threaded hole on the thin plate, corresponds to through-hole in the lateral wall
Position be provided with along metallic fiber extend the second threaded hole, the through-hole is bolted with the second threaded hole, described
First threaded hole and stud bolt cooperate, and the stud bolt passes through the surface that the first threaded hole arrives at the lateral wall of mold.
Further, magnet, the line and type of two magnetic blow out centre are provided on the surface of two lateral walls
The longitudinal center line of chamber is overlapped.
Further, the bottom of second crucible is provided with the second through-hole for extending to working chamber bottom, and described second is logical
Hole is internally provided with graphite mouth, the outer diameter of the graphite mouth and the internal diameter tight fit of the second through-hole, is provided with along its axial direction for closing
The channel that golden liquid passes through, the channel are connected to first through hole.
Further, the bottom of the lower die is provided with cooling water pipe, and the cooling water pipe is connected to refrigeration machine.
Further, air bladder switch valve K1, pneumatic diaphragm control valve T1 and vacuum pressure are provided on the ventilation pipe
Power table, the pressure vacuum gauge are used to detect the vacuum degree in ventilation pipe, and the stirring rod enters one end setting of working chamber
There is induction coil, end is provided with spoon head, for the condensed solid of the aluminium alloy of the melting in the first crucible to be transferred to
Second crucible, the induction coil are used to carry out electromagnetic agitation to the aluminium alloy of the melting in the first crucible.
A kind of control method based on described above for the device for preparing more metal fiber composites, including it is following
Step:
Step 1: by the intracavitary portion of type that mold is arranged in more metallic fibers by thin plate, and it is straightened, then by entire mold
It is put into and is cooled and shaped room, and be installed to the bottom of working chamber；
Step 2: opening the upper cover of working chamber, it will be put into the first crucible to the metallic particles of melting or powder, utilize machine
After tool pump vacuumizes the type chamber of working chamber, mold, the switch of working chamber is opened, the metallic particles or powder of melting are treated
It is heated；
Step 3: in the metallic particles of melting or the melting process of powder, using stirring rod carry out electromagnetic agitation and
Turn-over, until becoming aluminium alloy；
Step 4: closing the switch of working chamber, water cooling is carried out to aluminium alloy until being frozen into alloy block, recycles stirring rod
It is moved to the second crucible；
Step 5: opening the switch of working chamber, the alloy block inside the second crucible is heated, until becoming to close again
Golden liquid stream enters the type chamber of mold, opens simultaneously refrigeration machine and carries out water cooling to the aluminium alloy for flowing into mold；
Step 6: opening the corresponding control valve of blow vent of working chamber, the air pressure to melting chamber interior after the completion of water cooling
With outdoor air pressure balance, mold is taken out from being cooled and shaped in room, takes out casting.
Further, the both ends of the more metallic fibers are separately fixed on corresponding thin plate, bolt is recycled to pass through
Through-hole on thin plate cooperates with the second threaded hole of corresponding lateral wall, but the thin plate is not contacted with correspondence lateral wall, the two it
Between there are gaps, then, the surface that the first threaded hole on thin plate arrives at corresponding lateral wall is passed through using stud bolt, by turning
Dynamic stud bolt adjusts the degrees of tensions of more metallic fibers.
Further, the metallic particles or powder to melting in first crucible, which are heated to, melts state, using stirring
The spoon head for mixing stick carries out multiple turn-over to it, to be heated to alloy liquid, is repeatedly stirred using induction coil to it.
The present invention is beneficial to be had the technical effect that
On the basis of Conventional gravity casting process, by graphite mouth by working chamber and be cooled and shaped chamber interior mold type chamber
Connection, vacuumizes the type chamber of working chamber, mold by mechanical pump and pressure vacuum gauge, and the aluminium alloy after melting can
To enter the type chamber of mold from working chamber under the effect of gravity, so that entire more metal fiber composites be made to prepare
Cheng Jun is carried out in the environment of vacuum, is avoided molten metal and is generated turbulent flow and volume gas phenomenon during casting, drops significantly
The defects of low shrinkage porosite, shrinkage cavity, it is effectively improved the oxidative phenomena for generation of casting in air.It is provided with simultaneously in the bottom of mold
Cooling water pipe can allow internal aluminium alloy quickly to solidify, obtain biggish temperature gradient, refine branch by external refrigeration machine
Intergranular is away from and obtaining faster cooling rate, reduce the generation of defect, improve the mechanical performance of casting.In addition, in mould
More metallic fibers being embedded in advance in tool make it combine together with aluminium alloy, by the effect of circle sheet to the more of mould inside
The adjusting with degrees of tensions is fixed in root metallic fiber, increases the tension and bending strength for preparing material itself, i.e. power
Learn the characteristics of performance greatly improves, reached composite material high strength.
Detailed description of the invention
Fig. 1 is general structure schematic diagram of the invention；
Fig. 2 is the structural schematic diagram of mold of the invention；
Fig. 3 is the structural schematic diagram of a part of upper mold of the invention；
Fig. 4 is the structural schematic diagram of another part of upper mold of the invention；
Fig. 5 is the structural schematic diagram of lower die of the invention；
Fig. 6 is the enlarged diagram that part A is identified in Fig. 1 of the invention；
Fig. 7 is the structural schematic diagram of thin plate of the invention；
Wherein, the working chamber 1-, the first crucible of 101-, the second crucible of 102-, 103- observation window, 104- blow vent, 105- stone
Black mouth, the channel 1051-, 2- are cooled and shaped room, 3- stirring rod, 31- induction coil, 32- spoon head, 33- insulating protective sleeve, 4- ventilation
Pipeline, 5- mechanical pump, 6- mold, 61- upper mold, 611- first through hole, the first groove of 612-, 62- lower die, the second groove of 621-,
622- groove, the second threaded hole of 623-, 7- metallic fiber, 8- pressure vacuum gauge, 9- cooling water pipe, 10- refrigeration machine, 11- thin plate,
1101- through-hole, the first threaded hole of 1102-, 12- magnet, 13- power supply.
Specific embodiment
With reference to the accompanying drawing and the preferred embodiment specific embodiment that the present invention will be described in detail.
As shown in Figure 1, the present invention provides a kind of device for being used to prepare more metal fiber composites, including working chamber
1, be provided in the lower section of working chamber 1 and be cooled and shaped room 2, side is provided with stirring rod 3, the working chamber 1 by ventilation pipe 4 with
Mechanical pump 5 is connected to, and bottom is provided with the first crucible 101 and the second crucible 102, and top is provided with observation window 103, side wall
It is provided with blow vent 104, air bladder switch valve K1 is provided on blow vent 104, is internally provided with system being cooled and shaped room 2
The mold 6 of standby more metal fiber composites, second crucible 102 is for carrying the aluminium alloy after melting, bottom and mold 6
The connection of type chamber, be internally provided with more metallic fibers 7 in type chamber, which is used to carry metal to melting
Grain or powder.
The mechanical pump 5 vacuumizes the type chamber of mold 6 for vacuumizing to working chamber 1, in snorkel
Air bladder switch valve K2, pneumatic diaphragm control valve T1 and pressure vacuum gauge 8 are provided on road 4, the pressure vacuum gauge 8 is for examining
Survey the vacuum degree in ventilation pipe 4.When vacuumizing, the air bladder switch valve K1 on blow vent 104 is closed, opens ventilation pipe
Air bladder switch valve K2 and air bladder pressure regulator valve T1 on 4, are evacuated working chamber 1 by mechanical pump 5, pass through vacuum
Pressure gauge 7 observes internal pressure value, and internal vacuum degree size is controlled by air bladder pressure regulator valve T1, when internal air pressure
When reaching experimental condition, mechanical pump 5 and pneumatic thin film switch valve K2, air bladder pressure regulator valve T1 are closed.
As shown in Figure 1, 2, which includes upper mold 61 and lower die 62, is provided at the top of upper mold 61 to bottom and extends
First through hole 611, the first through hole 611 is in horn-like, and big mouth is located at the top of upper mold 61, as shown in Figures 3 and 4, in upper mold
61 bottom offers the first groove 612 with the form fit of more metal fiber composites to be prepared, the first through hole 611
One end, that is, horn-like big mouth be connected to the bottom of the second crucible 102, the other end is connected to the first groove 612, for convenience
Installation and processing, upper mold 61 can be divided equally into two parts with the axial direction of first through hole 611, and top is provided with for installing to molten
Refine the threaded hole of 1 bottom of room.
As shown in figure 5, the top of the lower die 62 offers and the form fit of more metal fiber composites to be prepared
Second groove 621, second groove 621 and the cooperation of the first groove 612 collectively constitute and more metal fiber composites to be prepared
Form fit type chamber, the bottom of lower die 62 is provided with cooling water pipe 9, which is connected to refrigeration machine 10, can be
Its bottom starts a cavity, and an opening is respectively arranged as cooling water for placing cooling water pipe 9, both ends in the inside of cavity
The entrance and exit of pipe 9, it is convenient to be connected to refrigeration machine 10, cooling water pipe 9 can also be made suitably close to the second groove 621, to be convenient for
The rapid cooling of aluminium alloy.The second logical of 1 bottom of working chamber is extended to as shown in fig. 6, being provided in the bottom of the second crucible 102
Hole, second through-hole are internally provided with graphite mouth 105, the internal diameter tight fit of the outer diameter of the graphite mouth 105 and the second through-hole, along it
It axially is provided with the channel 1051 passed through for aluminium alloy, which is connected to first through hole 611.In this way, by graphite mouth
105 channel 1051 is connected to working chamber 1 with the type chamber of mold 6, can also be to mould when mechanical pump 5 vacuumizes working chamber 1
The type chamber of tool 6 vacuumizes, while the aluminium alloy inside the second crucible 12 can pass through channel by self gravitation effect
1051 enter the type chamber of mold 6, can cool down to the aluminium alloy in the intracavitary portion of type by cooling water pipe 9 and refrigeration machine 10, from
And carry out entire more metal fiber composite preparation process in the environment of vacuum, molten metal is avoided in the mistake of casting
The defects of generating turbulent flow and volume gas phenomenon in journey, greatly reducing shrinkage porosite, shrinkage cavity is effectively improved what casting in air generated
Oxidative phenomena.Internal aluminium alloy can be allowed quickly to solidify simultaneously, obtain biggish temperature gradient, refinement interdendritic away from, and
Faster cooling rate is obtained, the generation of defect is reduced, improves the mechanical performance of casting.In addition, due to misoperation or
Person's aluminium alloy contains more impurity, when making aluminium alloy blocking channel 1501, can directly knock out graphite mouth 105 and repair,
Avoid the destruction to working chamber 1.
As described in figures 1 and 5, along the axial direction setting of type chamber, both ends pass through the setting of thin plate 11 and exist more metallic fibers 7
On two opposite lateral walls of type chamber, the position setting fluted 622 of thin plate 11 is corresponded on outer side wall, which includes
Two parts, are symmetrically distributed in upper mold 61 and lower die 62, as shown in fig. 7, being symmetrically provided on thin plate 11 multiple logical
Hole 1101 and the first threaded hole 1102, can be each two, be provided in the position that outer side wall corresponds to through-hole 1101 along metal fibre
The second threaded hole 623 that dimension 7 extends, the through-hole 1101 are bolted with the second threaded hole 623, first threaded hole 1102
Cooperate with stud bolt, which passes through the surface that the first threaded hole 1102 arrives at lateral wall.
In order to guarantee that metallic fiber 7 can keep a kind of straight condition in the intracavitary portion of type, its both ends is separately fixed at pair
On the thin plate 11 answered, recycles bolt to pass through the through-hole 1001 on thin plate 11 and cooperates with the second threaded hole 623 of corresponding lateral wall,
Thin plate 11 is arranged inside groove 622, but thin plate 11 is not locked on corresponding lateral wall at this time, but is not twisted
Tightly, make not contact between the two, and there are gaps, then, pass through the first threaded hole 1102 on thin plate 11 using stud bolt
The surface of corresponding lateral wall is arrived at, position is not punched due to being corresponding to it on lateral wall, can be by thin plate 11 by stud bolt
It is tensed to the center far from mold 6, as soon as stud bolt often twists circle, thin plate 11 is displaced outwardly a certain distance, and then interior
The metallic fiber 7 in portion is just drawn tighter, to can adjust the tension journey of more metallic fibers 7 by rotating stud bolt
Degree.Furthermore it is also possible to the magnet 12 by the surface that two lateral walls are arranged in constrains more metallic fibers 7, two
The line at 12 center of magnet is overlapped with the longitudinal center line of type chamber, and metallic fiber 7 is made to be limited in opposite parastate.
One end that stirring rod 3 enters working chamber 1 is provided with induction coil 31, end is provided with spoon head 32, and being used for will
The condensed solid of aluminium alloy of the melting in the first crucible 101 is transferred to the second crucible 102, which passes through electromagnetism
Valve K3 is connected with power supply 13, for carrying out electromagnetic agitation to the aluminium alloy of the melting in the first crucible 101.When passing through observation window
103 observe that metallic particles or powder are fusing into when melting state, and the alloy of state will be melted using the spoon head 32 of 3 lower end of stirring rod
Liquid carries out turn-over, is carried out continuously five times or so, then open power supply 13 and solenoid valve K3, and the induction coil 31 of stirring rod 3 is logical at this time
Electricity nearby generates magnetic field, and the aluminium alloy inside the first crucible 101 is caused passively to stir.In the process to guarantee safety, hand is answered
The used insulating protective sleeve 33 operates stirring rod.Electromagnetic agitation is carried out continuously after three to five times, closes solenoid valve K3 and power supply
13.Continue to heat, is fused into aluminium alloy, the switch of temporary close working chamber 1, by working chamber to metallic particles or powder
Water cooling effect inside 1, is quickly cooled down aluminium alloy and solidifies again, form alloy block, then the spoon head 32 with 3 bottom of stirring rod
It is moved into the second crucible 102 by the first crucible 101, reopens the switch of working chamber 1, at this point, because of the second crucible 102
Bottom be connected to the type chamber inside mold 6 by graphite mouth 105, once so alloy block heating and melting, internal aluminium alloy
The type chamber inside mold 6 can be immediately entered by self gravitation effect.
The present invention also provides a kind of controls based on described above for the device for preparing more metal fiber composites
Method, comprising the following steps:
Step 1: by the intracavitary portion of type that mold 6 is arranged in more metallic fibers 7 by thin plate 11, and be straightened, then will be entire
Mold 6, which is put into, is cooled and shaped room 2, and is installed to the bottom of working chamber 1；
Step 2: opening the upper cover of working chamber 1, it will be put into the first crucible 101 to the metallic particles of melting or powder, benefit
After being vacuumized with type chamber of the mechanical pump 5 to working chamber 1, mold 6, the switch of working chamber 1 is opened, the metal of melting is treated
Grain or powder are heated；
Step 3: in the metallic particles of melting or the melting process of powder, using stirring rod 3 carry out electromagnetic agitation and
Turn-over, until becoming aluminium alloy；
Step 4: closing the switch of working chamber 1, water cooling is carried out to aluminium alloy until being frozen into alloy block, recycles stirring
Stick 1 is moved to the second crucible 102；
Step 5: opening the switch of working chamber 1, the alloy block inside the second crucible 102 is heated, until becoming again
The type chamber that mold 6 is flowed at aluminium alloy, the aluminium alloy for opening simultaneously 10 pairs of refrigeration machine inflow molds 6 carry out water cooling；
Step 6: the corresponding control valve K1 of blow vent 104 of working chamber 1 is opened, in working chamber 1 after the completion of water cooling
The air pressure in portion and outdoor air pressure balance, take out mold 6 from being cooled and shaped in room 2, take out casting.
Although specific embodiments of the present invention have been described above, it will be appreciated by those of skill in the art that these
It is merely illustrative of, without departing from the principle and essence of the present invention, a variety of changes can be made to these embodiments
It more or modifies, therefore, protection scope of the present invention is defined by the appended claims.
Claims (10)
1. a kind of device for being used to prepare more metal fiber composites, including working chamber, it is provided with below the working chamber
It being cooled and shaped room, side is provided with stirring rod, it is characterised in that: the working chamber is connected to by ventilation pipe with mechanical pump,
Bottom is provided with the first crucible and the second crucible, and side wall is provided with blow vent, and control valve, institute are provided on the blow vent
It states cooling and shaping chamber interior and is provided with the mold for preparing more metal fiber composites, the second crucible is for carrying the conjunction after melting
Golden liquid, bottom are connected to the type chamber of mold, and the intracavitary portion of type is provided with more metallic fibers, first earthenware along its axial direction
Crucible is used to carry the metallic particles or powder to melting, and the mechanical pump is used to vacuumize working chamber, and then to mold
Type chamber vacuumized.
2. the device according to claim 1 for being used to prepare more metal fiber composites, it is characterised in that: the mold
Including upper die and lower die, be provided at the top of the upper mold to bottom extend first through hole, bottom offer with it is to be prepared more
First groove of the form fit of metal fiber composite, one end of the first through hole are connected to the bottom of the second crucible,
The other end is connected to the first groove, and the form fit with more metal fiber composites to be prepared is offered at the top of the lower die
The second groove, second groove and the cooperation of the first groove collectively constitute shape with more metal fiber composites to be prepared
The type chamber of cooperation.
3. the device according to claim 2 for being used to prepare more metal fiber composites, it is characterised in that: described in more
The both ends of metallic fiber pass through thin plate and are arranged on two opposite lateral walls of type chamber, and multiple through-holes are provided on the thin plate
With the first threaded hole, the second threaded hole extended along metallic fiber is provided in the position that the lateral wall corresponds to through-hole, it is described
Through-hole is bolted with the second threaded hole, and first threaded hole and stud bolt cooperate, and the stud bolt passes through the
One threaded hole arrives at the surface of the lateral wall of mold.
4. the device according to claim 3 for being used to prepare more metal fiber composites, it is characterised in that: in two institutes
The surface for stating lateral wall is provided with magnet, and the line of two magnetic blow out centre is overlapped with the longitudinal center line of type chamber.
5. the device according to claim 2 for being used to prepare more metal fiber composites, it is characterised in that: described second
The bottom of crucible is provided with the second through-hole for extending to working chamber bottom, and second through-hole is internally provided with graphite mouth, described
The internal diameter tight fit of the outer diameter of graphite mouth and the second through-hole is provided with the channel passed through for aluminium alloy, the channel along its axial direction
It is connected to first through hole.
6. the device according to claim 2 for being used to prepare more metal fiber composites, it is characterised in that: the lower die
Bottom be provided with cooling water pipe, the cooling water pipe is connected to refrigeration machine.
7. the device according to claim 1 for being used to prepare more metal fiber composites, it is characterised in that: the ventilation
Air bladder switch valve K1, pneumatic diaphragm control valve T1 and pressure vacuum gauge are provided on pipeline, the pressure vacuum gauge is used for
The vacuum degree in ventilation pipe is detected, one end that the stirring rod enters working chamber is provided with induction coil, and end is provided with
Spoon head, for the condensed solid of the aluminium alloy of the melting in the first crucible to be transferred to the second crucible, the induction coil is used
In the aluminium alloy progress electromagnetic agitation to the melting in the first crucible.
8. a kind of control method based on the device described in claim 1 for being used to prepare more metal fiber composites, special
Sign be the following steps are included:
Step 1: by the intracavitary portion of type that mold is arranged in more metallic fibers by thin plate, and be straightened, then entire mold is put into
It is cooled and shaped room, and is installed to the bottom of working chamber；
Step 2: opening the upper cover of working chamber, it will be put into the first crucible to the metallic particles of melting or powder, utilize mechanical pump
After vacuumizing to the type chamber of working chamber, mold, the switch of working chamber is opened, the metallic particles or powder for treating melting carry out
Heating；
Step 3: electromagnetic agitation and turn-over are carried out using stirring rod in the metallic particles of melting or the melting process of powder,
Until becoming aluminium alloy；
Step 4: closing the switch of working chamber, water cooling is carried out to aluminium alloy until being frozen into alloy block, recycle stirring rod by its
It is moved to the second crucible；
Step 5: opening the switch of working chamber, the alloy block inside the second crucible is heated, until becoming aluminium alloy again
The type chamber for flowing into mold opens simultaneously refrigeration machine and carries out water cooling to the aluminium alloy for flowing into mold；
Step 6: opening the corresponding control valve of blow vent of working chamber, air pressure and room to melting chamber interior after the completion of water cooling
Outer air pressure balance takes out mold from being cooled and shaped in room, takes out casting.
9. the control method of the device according to claim 8 for being used to prepare more metal fiber composites, feature exist
In: the both ends of the more metallic fibers are separately fixed on corresponding thin plate, bolt is recycled to pass through the through-hole on thin plate
Cooperate with the second threaded hole of corresponding lateral wall, but the thin plate is not contacted with corresponding lateral wall, there are gaps between the two, so
Afterwards, the surface that the first threaded hole on thin plate arrives at corresponding lateral wall is passed through using stud bolt, by rotating stud bolt tune
Save the degrees of tensions of more metallic fibers.
10. the control method of the device according to claim 8 for being used to prepare more metal fiber composites, feature exist
In: the metallic particles or powder to melting in first crucible, which are heated to, melts state, utilizes the spoon head pair of stirring rod
It carries out multiple turn-over, to be heated to alloy liquid, is repeatedly stirred using induction coil to it.
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| CN103540873A (en) * | 2013-09-23 | 2014-01-29 | 南昌航空大学 | Liquid-state near-net forming method and device for continuous carbon fiber enhanced aluminum-based composite material |
| CN104174831A (en) * | 2014-09-02 | 2014-12-03 | 哈尔滨工业大学 | Casting method of high-volume-fraction reinforced-phase titanium-based composite material casting |
| CN105772691A (en) * | 2016-05-20 | 2016-07-20 | 河南理工大学 | Integrated forming device and method for aluminum matrix composite thin-walled pieces |
| CN107058785A (en) * | 2017-03-21 | 2017-08-18 | 湖北玉立恒洋新材料科技有限公司 | SiC particulate reinforced aluminum matrix composites preparation method |
| CN109468549A (en) * | 2018-12-10 | 2019-03-15 | 南昌航空大学 | A kind of near-net-shape method of 3D braided fiber enhancing metal-base composites |
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