CN105772691B - A kind of aluminum base composite material thin wall part integral forming device and method - Google Patents
A kind of aluminum base composite material thin wall part integral forming device and method Download PDFInfo
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- CN105772691B CN105772691B CN201610338438.XA CN201610338438A CN105772691B CN 105772691 B CN105772691 B CN 105772691B CN 201610338438 A CN201610338438 A CN 201610338438A CN 105772691 B CN105772691 B CN 105772691B
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- pouring
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- composite material
- thin wall
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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
- B22D21/00—Casting non-ferrous metals or metallic compounds so far as their metallurgical properties are of importance for the casting procedure; Selection of compositions therefor
- B22D21/002—Castings of light metals
- B22D21/007—Castings of light metals with low melting point, e.g. Al 659 degrees C, Mg 650 degrees C
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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
- B22D27/09—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting by using pressure
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/026—Alloys based on aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
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- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
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- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
Abstract
The present invention relates to a kind of aluminum base composite material thin wall part integral forming device and method, what the equipment included being used for preparing aluminum matrix composite prepares pouring can (1) and pressurized canister (6).The present invention's prepares pouring can and can be vacuumized by vacuum extractor, pressurized canister can be pressurizeed by pressue device, and gypsum mould can be entered by conveying window by pressurized canister and prepare in pouring can and be poured into a mould, by carrying out preparation cast to aluminum matrix composite under vacuum, and the method solidified under high pressure, obtain the aluminum matrix composite complex thin-walled member of the integral forming of steady quality, gained cast-internal is without defects such as slag inclusion, shrinkage porosite, stomatas, dense structure, it is functional, meet production requirement；And the device is easy to spread, it is adapted to the small-scale metaplasia production of Al alloy composite complex thin-walled member, casting yield is higher.
Description
Technical field
The invention belongs to composite formed casting field, and in particular to a kind of aluminum base composite material thin wall part is integrally melted into
Shape device and method.
Background technology
The development of modern science technology, the performance to material proposes higher requirement, has both wished that they have well
Combination property, expects that they can be on active service under the extreme environmental conditions such as high temperature, high pressure, high vacuum and irradiation again.Particle strengthens
Aluminum matrix composite not only has the high tenacity of metal, high-ductility advantage concurrently, and has reinforcement particle high rigidity, high-modulus, height
The advantages of heat endurance, it can be processed using traditional metal working process, thus obtain researcher and paid attention to extensively.Learn in the U.S.
Person Logsdon is it is proposed that following development prospect of aluminum matrix composite essentially consists in non-long fiber reinforcement, particularly carborundum
Grain reinforced aluminum matrix composites.
1986, SiC particles reinforced alusil alloy was invented by Dural Aluminum Composites companies of the U.S.
Stirring casting new technology, realize the large-scale production of cast aluminum base composite material, many castings supplied in the form of ingot casting
Factory manufactures various parts.At present, stirring casting method prepares aluminum matrix composite technology relative maturity, but how to carry out scale
Product developmentA kind of preparation processing side of aluminum matrix composite large thin-wall housing is invented in Beijing Non-Ferrous Metal Research General Academy
Method, aluminum matrix composite ingot blank is prepared using powder metallurgy or stirring casting technique, and cogging is forged into forging rod, and then hole is prefabricated
Into hollow blank → isothermal Compound Extrusion, pipe → strong rotation flow turning of multi-pass heat is prepared, follow-up composite spinning pipe is obtained
Base → Re-temperature composite spinning shaping, obtains composite large thin-wall housing, because technics comparing is complicated, does not apply to industrialization
Production.And in aluminum matrix composite preparation technology, Aluminum-based Foundry Composites Reinforced with Particles is simple due to casting technique, equipment will
Ask low, be adapted to large-scale production.
At present, Aluminum-based Foundry Composites Reinforced with Particles casting is substantially using the technique cast after composite remelting.
Compared with common aluminum alloy, in Al alloy composite reflow process, due to the interfacial reaction between particle and melt and ratio
The method of double differences is different, and the viscosity of compounding flux increase, degasification difficulty is increased, and gas is involved in casting process, easily cause bleb and
It is mingled with.
The content of the invention
The present invention is intended to provide a kind of aluminum base composite material thin wall part integral forming device and method, to overcome existing skill
In art due to cause in Al alloy composite reflow process because of air-breathing Casting Blowholes, be mingled with, the defect such as cold shut it is more, make
Aluminum matrix composite complex thin-walled member is difficult to the technical problem shaped.The aluminum base composite material thin wall part integral forming of the present invention
Device and method be especially suitable for use in complexity thin-wall part prepare in.
Specifically, the present invention provides a kind of aluminum base composite material thin wall part integration system for former, and its feature exists
In described to prepare preparation-pouring can and pressurized canister that former includes being used to prepare aluminum matrix composite, the preparation-pour
The tank side wall adjacent with the pressurized canister is noted provided with conveying window, is communicated with the pressurized canister, the conveying window is provided with
Sealing mechanism is used for the sealing relative to each other for keeping the preparation-between pouring can and pressurized canister,
Preparation-the pouring can is built-in with smelting furnace, crucible, the first casting mold drive device, casting die and first
Slideway, the and preparation-pouring can is connected with vacuum extractor, be additionally provided with the top of the preparation-pouring can through
The charging bucket and charging-agitator of its roof, the crucible is placed in the smelting furnace, described for accommodating and melting aluminium ingot
It is provided with the mouth of a river on crucible and the smelting furnace, the smelting furnace is provided with inclining rotary mechanism to drive smelting furnace to make it to described
Casting mold verts, and the casting die is located at the smelting furnace sidepiece, mouth of a river lower section and is positioned over first cunning
On road, the first casting die drive device is connected with the casting mold, for driving the casting die described
Moved on one slideway；
The pressurized canister includes pressue device, mould input/output port, the second casting mold drive device and the second slideway,
And be connected with vacuum extractor.
First slideway and second slideway are located at the both sides of the conveying window respectively, to allow the casting moulds
Tool is pushed to the pressurized canister after casting complete through the conveying window from the preparation-pouring can.
In a kind of preferred implementation, the sealing mechanism includes the first sealing ring, drop bar, guide rod, lifting air
Cylinder and guide pin bushing, are connected, the lift cylinder, the guide pin bushing between the lift cylinder and the drop bar with the guide pin bushing
With the guide rod each 2, the drop bar both sides are respectively placed in, the drop bar is moved along the guide rod of both sides, institute
State the sealing that the first sealing ring is used to realize the drop bar and the preparation-pouring can.
In another preferred implementation, seal cover board is provided with the top of the preparation-pouring can, the preparation-
The top of pouring can is isolated from the outside using the seal cover board, and the charging bucket is through the seal cover board and points to the earthenware
Crucible.
In another preferred implementation, the second casting mold drive device front end is provided with connection ring, described to pour
The correspondence position of injection molding tool is provided with retaining mechanism, and the retaining mechanism includes push rod, spring, and the spring is placed in the push rod
On, the assembly of the spring and the push rod has 2, and the composition that is disposed opposite to each other retaining mechanism, the retaining mechanism can cover
The connection ring of the second casting mold drive device front end is stated in residence, realizes connection.
In another preferred implementation, the charging-agitator uses six blade constructions.
It is Rotating fields, and, upper strata completely isolated with outside up and down in the charging bucket in another preferred implementation
Equipped with alterant and fining agent, lower floor is equipped with levels in SiCp powder, the charging bucket and sets ball valve respectively, and the ball valve is used
In control charging rate.
In another preferred implementation, the mouth of a river is built-in with foam ceramic filter.
In another preferred implementation, the vacuum extractor is connected with the preparation-cast pot sidewall, pressurization
Device is connected with the pressurization pot sidewall.
On the other hand, the present invention is provided one kind and is prepared into using the said equipment progress aluminum base composite material thin wall part integration
The method of shape, it is characterised in that methods described is comprised the following steps：
Step 1, aluminium alloy ingots melted and stirred under vacuum conditions；
Step 2, after aluminium alloy ingots is completely melt, by temperature control at 690 DEG C~710 DEG C, be gradually added into SiCp powder,
Reverse agitating function is carried out simultaneously, and rotating speed is at 100-120 revs/min；
Step 3, interval positive stirring in 2-5 minutes, move in circles 15-20min；
Step 4, melt temperature drops to 590 DEG C~620 DEG C, forward direction stirring, rotating speed lifting arrives 1100-1300 revs/min,
Every 5-10 minutes reverse agitating functions, moved in circles 30-40min；
Step 5, melt progressively heated up, while reducing forward and reverse speed of agitator, temperature rises to 690 DEG C~710 DEG C, slowly
Alterant and fining agent are added, rotating speed is in 200-300 revs/min, forward and reverse stirring total time 10-20min；
Step 6, casting mold is preheated, and poured into a mould using the melt obtained；
After step 7, cast terminate, casting mold is pressurizeed immediately, pressure rises to 500-800Pa, pressurize 5-
10min；
At the end of step 8, solidification, pressure release to atmospheric pressure.
(3) beneficial effect
A kind of Al alloy composite complex thin-walled member integral forming device and method provided by the present invention have such as
Lower advantage：
First, prepare and pour into a mould by vacuumizing rear Al alloy composite to preparation-pouring can, it is therefore prevented that aluminium alloy compound
Oxidation, air-breathing etc. in material reflow process, it is to avoid occur serious slag inclusion and stomata etc. in Al alloy composite casting and lack
Fall into, meanwhile, gypsum mould good heat preservation performance and pour into a mould, shaped beneficial to complex thin-walled member under a high vacuum.
2nd, by being pressurizeed to gypsum mould after cast in pressurized canister, promote Al alloy composite liquation to accelerate feeding, prevent
Only casting produces shrinkage defect, makes alloy structure fine and close, so as to ensure the dense internal organization of casting；
3rd, device structure of the invention is ingenious, workable, and pouring can is dexterously linked together with pressurized canister,
Both the feeding for having facilitated casting mold in turn ensure that vacuum state when sending into casting mold, and can be square after the completion of pouring
Just pressurization pressurize is carried out to product, preparation process is accomplished without any letup, and makes the performance of product more excellent.
Therefore using the Al alloy composite complex thin-walled member integral forming device and method of the present invention, production aluminium is closed
Metal/composite material thin-wall part casting quality is stable：Cast-internal is without defects such as slag inclusion, shrinkage porosite, stomatas, and dense structure, performance is good
It is good, meet production requirement；The device is easy to spread, is adapted to the small-scale metaplasia production of Al alloy composite complex thin-walled member, casting
Yield rate is higher.
Brief description of the drawings
Fig. 1 is the structural representation of aluminum matrix composite complex thin-walled member integration system of the invention for former；
Fig. 2 is the structural representation of B location enlarged drawing and drop bar 25 and guide rod 28 in Fig. 1；
Fig. 3 is the first gypsum mould of location A push-and-pull cylinder 21 and the enlarged diagram of gypsum mould collision connection mechanism in Fig. 1.
Fig. 4 is the charging-agitator knot of aluminum matrix composite complex thin-walled member integration system of the invention for former
Structure schematic diagram.
Fig. 5-6 for the present invention aluminum matrix composite complex thin-walled member integration system for micro- group of Al alloy composite
Knit.
Embodiment
With reference to Figure of description and embodiment, the embodiment to the present invention is described in further detail.With
Lower embodiment is merely to illustrate the present invention, but is not limited to the scope of the present invention.
As shown in figure 1, the present embodiment describes a kind of Al alloy composite complex thin-walled member integral forming equipment, should
Equipment includes：Aluminium alloy preparation-pouring can 1 and pressurized canister 6.
The top of preparation-pouring can 1 is isolated from the outside using seal cover board 2, and seal cover board 2 is provided with charging bucket 3, added
The observation window 5 of material-agitator 4 and first.Two layers built in charging bucket 3, upper strata is equipped with alterant and fining agent, and lower floor is equipped with SiCp powder
End, controls charging rate by two ball valves 15 respectively, and completely isolated with outside.The lifting of charging-agitator and mixer
Structure 4 is placed in the top of seal cover board 2, and agitating device is located in preparation-pouring can 1, for entering to the melt in preparation-pouring can 1
Row charging and stirring, the inside of charging-agitator 16 is using each four blades up and down, and outside is using spiral laminated structure (such as Fig. 4 institutes
Show).
The inside of preparation-pouring can 1 set smelting furnace 19, crucible 20, the first gypsum mould push-and-pull cylinder 21, gypsum mould 22,
First slideway 23.Preparation-pouring can 1 is close to place side by side with pressurized canister 6, and the adjacent wall of the two, should provided with conveying window
Conveying window can be opened to make preparation-pouring can 1 communicate with pressurized canister 6, be closed mode under conveying window normal condition,
It uses sealing mechanism to realize the sealing relative to pressurized canister 6.
Crucible 20 is placed in smelting furnace 19, and the mouth of a river is provided with aluminium ingot, crucible 20 and smelting furnace 19 for accommodating and melting
18, the mouth of a river 18 is built-in with foam ceramic filter.Smelting furnace 19 is provided with inclining rotary mechanism 17 to drive crucible 20 to make it to gypsum mould
22 vert, and it uses cylinder to promote and realizes cast, so as to realize that the liquid level of crucible 20 is steady during cast, is prevented by foam ceramic filter
Bath surface, which is covered with oxide and is involved in liquid stream, to be poured into gypsum mould 22.Gypsum mould 22 is located at the lower section of the 19 sidepiece mouth of a river of smelting furnace 18
And it is positioned on the first slideway 23, the first gypsum mould push-and-pull cylinder 21 is connected with gypsum mould 22, for driving gypsum mould 22 to exist
Moved on first slideway 23, the connection of the two can disconnect as needed.
As shown in Fig. 2 sealing mechanism includes the first sealing ring 24, drop bar 25, guide rod 28, lift cylinder 13 and led
Set 16, lift cylinder 13, guide pin bushing 29 and guide rod 28 each 2 are respectively placed in the both sides of drop bar 25, drop bar 25 is in both sides liter
Move up and down, connected between lift cylinder 13 and drop bar 25 with guide pin bushing 29 by both sides guide rod 28 under the drive of sending down abnormally ascending cylinder 13
Connect.When needing to keep sealing, drop bar 25 just keeps sealing to conveying window and by sealing ring 24, is needing to open defeated
When sending window, drive drop bar 25 to move up by lift cylinder 13, allow for gypsum mould 22 and pass through.
Gypsum mould 22 is provided with retaining mechanism, as shown in figure 3, the front end of the second gypsum mould push-and-pull cylinder 11 is provided with connection ring,
Retaining mechanism includes push rod 27, spring 26, and spring 26 is placed on push rod 27, and the assembly of spring 26 and push rod 27 has two, that
This is staggered relatively, and retaining mechanism can entangle the connection ring of the front end of gypsum mould push-and-pull cylinder 11, realizes connection.
With continued reference to Fig. 1, pressurized canister 6 is built-in with the second slideway 12, the second gypsum mould push-and-pull cylinder 11, the top of pressurized canister 6
The second observation window 7 is provided with, right side opening has hinged door 10, for the input and output of mould, is blocked with the second sealing ring 9 and hinged door 10
Consolidation is now sealed, and is had pressurized gas pipelines 8 on the madial wall of pressurized canister 6, is connected with pressue device.
When in use, clean aluminium alloy ingots stripping and slicing can be placed in crucible 20, while successively being added in charging bucket 3
SiCp powder (granularity is at 5-30 μm), alterant and the fining agent of pretreatment, and by the closure on preparation-pouring can 1
Plate 2, drop bar 25 and the upper end cover lock sealing of charging bucket 3, start vacuum extractor 14, pass through the side wall of preparation-pouring can 1
On vacuum lead preparation-pouring can 1 is vacuumized.Vacuumize be in order that molten aluminium alloy in subsequent preparation process with
Air is completely isolated, can avoid molten aluminium alloy air-breathing and oxidation.Vacuum reaches 5-10Pa, and energization starts to melt aluminium ingot,
After after aluminium ingot fusing in crucible 20, charging-agitator 4 is fallen, two are realized by being put into fritter aluminium ingot on charging-agitator 4
Secondary charging；After aluminium ingot is completely melt, temperature control is at 690 DEG C~710 DEG C, and charging bucket 3 is slowly added to SiCp powder, while plus
Material-agitator 4 carries out reverse agitating function, and rotating speed is spaced positive stirring in 2-5 minutes, move in circles 15- at 100-120 revs/min
20min；Melt temperature is dropped to 590 DEG C~620 DEG C afterwards, forward direction stirring, rotating speed lifting arrives 1100-1300 revs/min, is spaced 5-
10 minutes reverse agitating functions, move in circles 30-40min；Melt is progressively heated up, while reducing forward and reverse speed of agitator, liquid is observed
The steady situation continued reduction speed in face, temperature rises to 690 DEG C~710 DEG C, is slowly added to alterant and fining agent, rotating speed is in 200-
It is 300 revs/min, positive/negative to time 10-20min；Prepared by melt completes, and waits to be cast.
Melt prepare after the completion of, open pressurized canister 6 on hinged door 10, will preheating gypsum mould 22 (200 DEG C of preheating temperature-
300 DEG C) it is placed in pressurized canister 6 on second slideway 12, after locking hinged door 10, start vacuum extractor 14, make the vacuum of pressurized canister 6
When degree reaches 5-10Pa, lift cylinder 13 is opened, drop bar 25 is opened, gypsum mould 22 is pushed into first in preparation-pouring can 1
On slideway 23.
After gypsum mould 22 is reached on the first slideway 23, the first gypsum mould push-and-pull cylinder 21 touches the lock on gypsum mould 22
During tight mechanism, the top of both sides push rod 27 is opened by gypsum mould down thrust, and by the elastic force of the spring 26 on both sides push rod 27
The front end connection ring of first gypsum mould push-and-pull cylinder 21 is entangled, realization is connected with gypsum mould 22.The position of gypsum mould 22 is adjusted, to protect
Card Al alloy composite liquation is flowed with even pace in the die cavity of gypsum mould 22.Start crucible inclining rotary mechanism 17 by crucible 20
Inclination is poured into a mould, while moving left and right gypsum mould 22, is poured into a mould at once after being prepared by Al alloy composite, in high vacuum shape
Cast avoids gypsum mould " feeling suffocated " under state, while preventing Al alloy composite melt because of melt caused by air-breathing, oxidation
Mobility is reduced, and can so prevent casting from producing stomata and inclusion defect, the smooth shaping of complex thin-walled member is can guarantee that again.
After the cast of Al alloy composite melt gypsum mould terminates, immediately with the first gypsum mould push-and-pull cylinder 21 by gypsum mould
Second slideway 12 in 22 push-in pressurized canister 6, because the second slideway 12 is relatively flat and is disengaged with the moment of push-and-pull cylinder 21.Put down sealing
Slide plate 25 simultaneously opens the second gypsum mould push-and-pull cylinder 11 promotion top tight sealing slide plate 25 of gypsum mould 22 afterwards in place.Utilize pressue device
Pressurized canister 6 is pressurizeed, by applying pressure to the aluminium liquid surface of gypsum mould 22, promotes Al alloy composite liquation to accelerate feeding,
Prevent casting from producing shrinkage defect, make alloy structure fine and close, so as to be conducive to improving the inherent quality of thin-wall part.Then, pressure
Rise to 500-800Pa, pressurize 5-10min；After melt solidification, by the pressure release of pressurized canister 6 to atmospheric pressure, hinged door 10 is opened, is taken out
Gypsum mould 22.It is that continuous production can be achieved to repeat the step of cast, solidification.
Fig. 5-6 for the present invention aluminum matrix composite complex thin-walled member integration system for micro- group of Al alloy composite
Knit, hence it is evident that the substantially uniform distribution in the base of visible SiCp (granularity 121m), seldom reunite.This high-quality thin-wall part
Hardly resulted in by other Preparation equipments or method.
Although the principle of the present invention is described in detail above in conjunction with the preferred embodiments of the present invention, this area skill
Art personnel are it should be understood that above-described embodiment is only the explanation of the exemplary implementation to the present invention, not to present invention bag
Restriction containing scope.Details in embodiment is simultaneously not meant to limit the scope of the invention, in the spirit without departing substantially from the present invention and
In the case of scope, any equivalent transformation based on technical solution of the present invention, simple replacement etc. are obvious to be changed, and is all fallen within
Within the scope of the present invention.
Claims (9)
1. a kind of aluminum base composite material thin wall part integration system is for former, it is characterised in that described to prepare former bag
Preparation-the pouring can (1) and pressurized canister (6) for preparing aluminum matrix composite are included, the preparation-pouring can (1) adds with described
Press the adjacent side wall of tank (6) provided with conveying window, communicated with the pressurized canister (6), the conveying window is provided with sealer
Structure is used to keep the sealing relative to each other between the preparation-pouring can (1) and pressurized canister (6),
Preparation-the pouring can (1) is built-in with smelting furnace (19), crucible (20), the first casting mold drive device (21), casting
Mould (22) and the first slideway (23), and the preparation-pouring can (1) is connected with vacuum extractor (14), it is described prepare-
The charging bucket (3) and charging-agitator (4) through its roof are additionally provided with the top of pouring can (1), the crucible (20) is placed in
In the smelting furnace (19), the mouth of a river is provided with aluminium ingot, the crucible (20) and the smelting furnace (19) for accommodating and melting
(18), the smelting furnace (19) is provided with inclining rotary mechanism (17) to drive smelting furnace (19) to make it to the casting mold (22)
Vert, the casting die (22) is located at the smelting furnace (19) sidepiece, below the mouth of a river (18) and be positioned over described the
On one slideway (23), the first casting die drive device (21) is connected with the casting mold (22), described for driving
Casting die (22) is moved on first slideway (23)；
The pressurized canister (6) includes pressue device (8), mould input/output port (10), the second casting mold drive device (11)
With the second slideway (12), and it is connected with vacuum extractor (14)；
First slideway (23) and second slideway (12) are located at the both sides of the conveying window respectively, to allow described pour
Injection molding has (22) and is pushed after casting complete through the conveying window from the preparation-pouring can (1) to the pressurized canister
(6)。
2. aluminum base composite material thin wall part integration system according to claim 1 is for former, it is characterised in that
The sealing mechanism includes the first sealing ring (24), drop bar (25), guide rod (28), lift cylinder (13) and led
Cover (16), be connected between the lift cylinder (13) and the drop bar (25) with the guide pin bushing (16), the lift cylinder
(13), the guide pin bushing (16) and each 2 of the guide rod (28), are respectively placed in the drop bar (25) both sides, and the sealing is slided
The guide rod (28) motion of the plate (25) along both sides, first sealing ring (24) is used to realize the drop bar (25) and institute
State the sealing of preparation-pouring can (1).
3. aluminum base composite material thin wall part integration system according to claim 2 is for former, it is characterised in that described
Seal cover board (2) is provided with the top of preparation-pouring can (1), the top of the preparation-pouring can (1) uses the closure
Plate (2) is isolated from the outside, and the charging bucket (3) is through the seal cover board (2) and points to the crucible (20).
4. aluminum base composite material thin wall part integration system according to claim 1 is for former, it is characterised in that described
Second casting mold drive device (11) front end is provided with connection ring, and the correspondence position of the casting mold (22) is provided with locking machine
Structure, the retaining mechanism includes push rod (27), spring (26), and the spring (26) is placed on the push rod (27), the spring
(26) and the assembly of the push rod (27) has 2, the composition that is disposed opposite to each other retaining mechanism, the retaining mechanism can cover residence
The connection ring of second casting mold drive device (11) front end is stated, connection is realized.
5. aluminum base composite material thin wall part integration system according to claim 1 is for former, it is characterised in that described
Charging-agitator (4) uses six blade constructions.
6. aluminum base composite material thin wall part integration system according to claim 1 is for former, it is characterised in that described
It is Rotating fields, and up and down completely isolated with outside in charging bucket (3), upper strata is equipped with alterant and fining agent, lower floor is equipped with SiCp
Powder, the interior levels of the charging bucket (3) set ball valve (15) respectively, and the ball valve (15) is used to control charging rate.
7. aluminum base composite material thin wall part integration system according to claim 1 is for former, it is characterised in that described
The mouth of a river (18) is built-in with foam ceramic filter.
8. aluminum base composite material thin wall part integration system according to claim 1 is for former, it is characterised in that described
Vacuum extractor (14) is connected with preparation-pouring can (1) side wall, pressue device (8) and the pressurized canister (6) side wall phase
Connection.
It is standby that 9. the equipment in a kind of use claim 1-8 described in any one carries out aluminum base composite material thin wall part integration system
The method of shaping, it is characterised in that methods described is comprised the following steps：
Step 1, aluminium alloy ingots melted and stirred under vacuum conditions；
Step 2, after aluminium alloy ingots is completely melt, by temperature control at 690 DEG C~710 DEG C, be gradually added into SiCp powder, simultaneously
Reverse agitating function is carried out, rotating speed is at 100-120 revs/min；
Step 3, interval positive stirring in 2-5 minutes, move in circles 15-20min；
Step 4, melt temperature drops to 590 DEG C~620 DEG C, forward direction stirring, rotating speed lifting arrives 1100-1300 revs/min, is spaced 5-
10 minutes reverse agitating functions, move in circles 30-40min；
Step 5, melt progressively heated up, while reducing forward and reverse speed of agitator, temperature rises to 690 DEG C~710 DEG C, is slowly added to
Alterant and fining agent, rotating speed is in 200-300 revs/min, forward and reverse stirring total time 10-20min；
Step 6, casting mold is preheated, and poured into a mould using the melt obtained；
After step 7, cast terminate, casting mold is pressurizeed immediately, pressure rises to 500-800Pa, pressurize 5-10min；
At the end of step 8, solidification, pressure release to atmospheric pressure.
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| CN201610338438.XA CN105772691B (en) | 2016-05-20 | 2016-05-20 | A kind of aluminum base composite material thin wall part integral forming device and method |
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| CN201610338438.XA CN105772691B (en) | 2016-05-20 | 2016-05-20 | A kind of aluminum base composite material thin wall part integral forming device and method |
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|---|---|---|---|---|
| CN106914606B (en) * | 2017-02-17 | 2019-05-24 | 上海交通大学 | A kind of casting compression solidification semi-successive cultivation device and method |
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