CN105772691A - Integrated forming device and method for aluminum matrix composite thin-walled pieces - Google Patents
Integrated forming device and method for aluminum matrix composite thin-walled pieces Download PDFInfo
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- CN105772691A CN105772691A CN201610338438.XA CN201610338438A CN105772691A CN 105772691 A CN105772691 A CN 105772691A CN 201610338438 A CN201610338438 A CN 201610338438A CN 105772691 A CN105772691 A CN 105772691A
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- pouring
- preparation
- wall part
- 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
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/026—Alloys based on aluminium
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- 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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- Chemical & Material Sciences (AREA)
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- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
Abstract
The invention relates to an integrated forming device and method for aluminum matrix composite thin-walled pieces. The device comprises a preparing-pouring tank (1) and a pressurization tank (6), wherein the preparing-pouring tank (1) and the pressurization tank (6) are used for preparing aluminum matrix composites. The preparing-pouring tank can be vacuumized through a vacuumizing device. The pressurization tank can be pressurized through a pressurization device. A gypsum mold can enter the preparing-pouring tank from the pressurization tank through a conveying window to conduct pouring. The stable-quality and integrally-formed aluminum matrix composite complex thin-walled pieces are obtained through the method of preparing and pouring the aluminum matrix composites under the vacuum condition and conducting solidification at high pressure. The interiors of the obtained castings are free of defects such as slag inclusion, shrinkage porosity and pores, and the castings are compact in structure, good in performance and capable of meeting production requirements. The device is easy to popularize, suitable for producing the aluminum alloy composite complex thin-walled pieces on a small scale and high in casting yield.
Description
Technical field
The invention belongs to composite formed casting field, be specifically related to a kind of aluminum base composite material thin wall
Part integral forming Apparatus and method for.
Background technology
The development of modern science technology, has higher requirement to the performance of material, has both wished them
There is good combination property, expect that again they can be in poles such as high temperature, high pressure, fine vacuum and irradiation
It is on active service under the conditions of end ring border.Particle enhanced aluminum-based composite material not only has the high tenacity of metal, high-ductility concurrently
Property advantage, and have the advantages such as reinforcement granule high rigidity, high-modulus, high thermal stability, can use
Traditional metal working process is processed, thus obtains researcher and extensively pay attention to.American scholar
Logsdon is it is proposed that the following development prospect of aluminum matrix composite essentially consists in non-long fiber reinforcement, especially
It it is enhancing aluminum-base composite material by silicon carbide particles.
1986, SiC particles reinforced was invented by U.S. Dural Aluminum Composites company
The stirring casting new technique of alusil alloy, it is achieved that the large-scale production of cast aluminum base composite material, with
The form of ingot casting supplies Duo Jia Foundry Works and manufactures various parts.At present, stirring casting method prepares aluminum base again
Condensation material technology relative maturity, but how to carry out scale product development？Beijing non-ferrous metal research
The preparation processing method of a kind of aluminum matrix composite large thin-wall housing has been invented by total institute, uses powder smelting
Gold or stirring casting technique prepare aluminum matrix composite ingot blank, and cogging is forged into rod, and then hole is prefabricated
Become hollow blank → isothermal Compound Extrusion, prepare pipe → multi-pass heat and revolve by force flow turning, after obtaining
Continuous composite spinning pipe → Re-temperature composite spinning shapes, it is thus achieved that composite large thin-wall housing, due to
Technics comparing is complicated, inapplicable industrialized production.And in aluminum matrix composite preparation technology, granule increases
Strong cast aluminum base composite material is simple due to casting technique, and equipment requirements is low, is suitable for large-scale production.
At present, Aluminum-based Foundry Composites Reinforced with Particles casting is cast after substantially using composite remelting
The technique made.Compared with common aluminum alloy, in Al alloy composite reflow process, due to granule and
Interfacial reaction between melt and difference of specific gravity, the viscosity of compounding flux increases, and degasification difficulty strengthens,
Casting process is involved in gas, easily causes bleb and be mingled with.
Summary of the invention
It is desirable to provide a kind of aluminum base composite material thin wall part integral forming Apparatus and method for, with gram
Take in prior art due to Al alloy composite reflow process causes because of air-breathing Casting Blowholes,
Be mingled with, the defect such as cold shut more, make aluminum matrix composite complex thin-walled member be difficult to the technical problem shaped.
The device and method of the aluminum base composite material thin wall part integral forming of the present invention is especially suitable for use in complexity
Thin-wall part preparation in.
Specifically, the present invention provide a kind of aluminum base composite material thin wall part integration system for former,
It is characterized in that, described former of preparing includes the preparation-pouring can for preparing aluminum matrix composite
And pressurized canister (6), the side that described preparation-pouring can (1) is adjacent with described pressurized canister (6) (1)
Wall is provided with conveying window, communicates with described pressurized canister (6), and described conveying window is provided with sealer
Structure is used for the sealing relative to each other kept between described preparation-pouring can (1) and pressurized canister (6),
Described preparation-pouring can (1) is built-in with smelting furnace (19), crucible (20), the first casting moulds
Tool driving means (21), casting die (22) and the first slideway (23), and described preparation-cast
Tank (1) is connected with vacuum extractor (14), and the top of described preparation-pouring can (1) also sets up
Having the charging bucket (3) through its roof and charging-agitator (4), described crucible (20) is placed in institute
State in smelting furnace (19), be used for accommodating and melting aluminium ingot, described crucible (20) and described smelting furnace
(19) be provided with the mouth of a river (18) on, described smelting furnace (19) be provided with inclining rotary mechanism (17) in order to
Smelting furnace (19) is driven to make it vert to described casting mold (22), described casting die (22)
It is positioned at below described smelting furnace (19) sidepiece, the described mouth of a river (18) and is positioned over described first and slide
On road (23), described first casting die driving means (21) is connected with described casting mold (22),
For driving described casting die (22) in the upper motion of described first slideway (23)；
Described pressurized canister (6) includes pressue device (8), mould input/output port (10), second waters
Note die drive unit (11) and the second slideway (12), and be connected with vacuum extractor (14).
Described first slideway (23) and described second slideway (12) lay respectively at described conveying window
Both sides, with allow described casting mold (22) after casting complete through described conveying window from described system
Standby-pouring can (1) pushed to described pressurized canister (6).
In a kind of preferred implementation, described sealing mechanism includes the first sealing ring (24), seals and slide
Plate (25), guide rod (28), lift cylinder (13) and guide pin bushing (16), described lift cylinder (13)
It is connected with described guide pin bushing (16) with between described drop bar (25), described lift cylinder (13),
Described guide pin bushing (16) and each 2 of described guide rod (28), be respectively placed in described drop bar (25)
Both sides, described drop bar (25) moves along the described guide rod (28) of both sides, and described first seals
Circle (24) is used for the sealing realizing described drop bar (25) with described preparation-pouring can (1).
In another kind of preferred implementation, the top of described preparation-pouring can (1) is provided with described
Seal cover board (2), the top of described preparation-pouring can (1) uses described seal cover board (2) with outer
Portion isolates, and described charging bucket (3) is through described seal cover board (2) and points to described crucible (20).
In another kind of preferred implementation, described second casting mold driving means (11) front end sets
Connection ring, the correspondence position of described casting mold (22) is had to be provided with retaining mechanism, described retaining mechanism
Including push rod (27), spring (26), described spring (26) is placed on described push rod (27), institute
The assembly stating spring (26) and described push rod (27) has 2, the composition that is disposed opposite to each other locking
Mechanism, described retaining mechanism can entangle the connection ring of described gypsum mould push-and-pull cylinder (11) front end, real
Now connect.
In another kind of preferred implementation, described charging-agitator (4) uses six blade constructions.
In another kind of preferred implementation, it is levels structure in described charging bucket (3), and with outward
Portion is completely isolated, and upper strata is equipped with alterant and fining agent, and lower floor is equipped with SiCp powder, described charging bucket
(3) interior levels is respectively provided with ball valve (15), and described ball valve (15) is used for controlling charging rate.
In another kind of preferred implementation, the described mouth of a river (18) are built-in with foam ceramic filter.
In another kind of preferred implementation, described vacuum extractor (14) and described preparation-pouring can
(1) sidewall is connected, and pressue device (8) is connected with described pressurized canister (6) sidewall.
On the other hand, the present invention provide a kind of aluminum base composite material thin wall part integration system for manufacturing process,
It is characterized in that, described method comprises the steps of:
Step 1, aluminium alloy ingots is melted and stir under vacuum conditions；
Step 2, after aluminium alloy ingots is completely melt, control temperature, at 690 DEG C～710 DEG C, gradually to add
Entering SiCp powder, carry out reverse agitating function simultaneously, rotating speed is at 100-120 rev/min；
Step 3, interval forward stirring in 2-5 minute, move in circles 15-20min；
Step 4, melt temperature dropping to 590 DEG C～620 DEG C, forward stirs, and rotating speed rises to 1100-1300
Rev/min, it is spaced 5-10 minute reverse agitating function, move in circles 30-40min；
Step 5, progressively being heated up by melt, reduce forward and reverse speed of agitator simultaneously, temperature rises to 690 DEG C
～710 DEG C, it being slowly added to alterant and fining agent, rotating speed is at 200-300 rev/min, positive/negative to the time
10-20mmin；
Step 6, casting mold is preheated, and utilize obtained melt to pour into a mould；
After step 7, cast terminate, pressurizeing casting mold immediately, pressure rises to 500-800Pa,
Pressurize 5-10min；
At the end of step 8, solidification, pressure release is to atmospheric pressure.
In a kind of preferred implementation, described method is realized by device described above.
(3) beneficial effect
A kind of Al alloy composite complex thin-walled member integral forming equipment provided by the present invention and side
Method has the advantage that
One, by being prepared by Al alloy composite after preparation-pouring can evacuation and cast, it is therefore prevented that
Oxidation, air-breathing etc. in Al alloy composite reflow process, it is to avoid in Al alloy composite foundry goods
The defect such as serious slag inclusion and pore occurs, meanwhile, gypsum mould good heat preservation performance and pouring into a mould under a high vacuum,
It is beneficial to complex thin-walled member shape.
Two, by gypsum mould after cast is pressurizeed in pressurized canister, Al alloy composite liquation is promoted
Accelerate feeding, prevent foundry goods from producing shrinkage defect, make alloy structure fine and close, thus ensure the interior of foundry goods
Dense structure of portion；
Three, the device structure of the present invention is ingenious, workable, by pouring can with pressurized canister dexterously
Linking together, the feeding both having facilitated casting mold in turn ensure that the vacuum when sending into casting mold
State, and can easily product be carried out after having poured pressurize of pressurizeing, preparation process one gas is breathed out
Becoming, the performance making product is more excellent.
Therefore Al alloy composite complex thin-walled member integral forming equipment and the side of the present invention are used
Method, produces Al alloy composite thin-wall part casting quality stable: cast-internal without slag inclusion, shrinkage porosite,
The defects such as pore, dense structure, functional, meet production requirement；This device is easy to spread, suitable
Closing Al alloy composite complex thin-walled member metaplasia on a small scale to produce, casting yield is higher.
Accompanying drawing explanation
Fig. 1 is the aluminum matrix composite complex thin-walled member integration system structure for former of the present invention
Schematic diagram；
Fig. 2 is B location enlarged drawing and drop bar 25 and the structural representation of guide rod 28 in Fig. 1；
Fig. 3 is location A the first gypsum mould push-and-pull cylinder 21 and gypsum mould collision connection mechanism in Fig. 1
Enlarged diagram.
Fig. 4 be the present invention the charging for former of the aluminum matrix composite complex thin-walled member integration system-
Agitator structure schematic diagram.
Fig. 5-6 is that the aluminum matrix composite complex thin-walled member integration system of the present invention is for aluminium alloy compound material
Material microscopic structure.
Detailed description of the invention
Below in conjunction with Figure of description and embodiment, the detailed description of the invention of the present invention is made the most in detail
Thin description.Following example are merely to illustrate the present invention, but are not limited to the scope of the present invention.
As it is shown in figure 1, the present embodiment describes a kind of Al alloy composite complex thin-walled member integration
Former, this equipment includes: prepared by aluminium alloy-pouring can 1 and pressurized canister 6.
The top of preparation-pouring can 1 uses seal cover board 2 to be isolated from the outside, and seal cover board 2 is provided with
Charging bucket 3, charging-agitator 4 and the first observation window 5.The built-in two-layer of charging bucket 3, upper strata equipped with
Alterant and fining agent, lower floor, equipped with SiCp powder, controls charging speed by two ball valves 15 respectively
Degree, and completely isolated with outside.Lifting and the rabbling mechanism 4 of charging-agitator are placed in seal cover board 2
Top, agitating device is positioned at preparation-pouring can 1, for entering the melt in preparation-pouring can 1
Row feeds and stirring, and charging-agitator 16 is internal uses the most each four blades, outside employing spiral
Laminated structure (as shown in Figure 4).
The inside of preparation-pouring can 1 arranges smelting furnace 19, crucible the 20, first gypsum mould push-and-pull cylinder
21, gypsum mould the 22, first slideway 23.Preparation-pouring can 1 is close to pressurized canister 6 place side by side,
The adjacent wall of the two is provided with conveying window, and this conveying window can be opened to make preparation-pouring can
1 communicates with pressurized canister 6, is closed mode under conveying window normal condition, and it uses sealing mechanism to realize
Sealing relative to pressurized canister 6.
Crucible 20 is placed in smelting furnace 19, is used for accommodating and melting aluminium ingot, crucible 20 and smelting furnace 19
On be provided with the mouth of a river 18, the mouth of a river 18 is built-in with foam ceramic filter.Smelting furnace 19 is provided with inclining rotary mechanism
17 in order to drive crucible 20 to make it vert to gypsum mould 22, and it uses cylinder to promote and realizes cast, from
And it is steady to realize crucible 20 liquid level during cast, bath surface is prevented to be covered with oxidation by foam ceramic filter
Thing is involved in liquid stream and pours in gypsum mould 22.Gypsum mould 22 is positioned at below the smelting furnace 19 sidepiece mouth of a river 18
And being positioned on the first slideway 23, the first gypsum mould push-and-pull cylinder 21 is connected with gypsum mould 22, use
In driving gypsum mould 22 to move on the first slideway 23, the connection of the two can disconnect as desired.
As in figure 2 it is shown, sealing mechanism includes the first sealing ring 24, drop bar 25, guide rod 28, rises
Sending down the abnormal ascending QI cylinder 13 and guide pin bushing 16, each 2 of lift cylinder 13, guide pin bushing 29 and guide rod 28, put respectively
In drop bar 25 both sides, drop bar 25 relies on both sides to lead under the drive of both sides lift cylinder 13
Bar 28 moves up and down, and is connected with guide pin bushing 29 between lift cylinder 13 with drop bar 25.At needs
When keeping sealing, drop bar 25 just to carrying window and keeping sealing by sealing ring 24, is needing
When opening conveying window, drop bar 25 is driven to move up by lift cylinder 13, Jin Eryun
Permitted gypsum mould 22 to pass through.
Gypsum mould 22 is provided with retaining mechanism, as it is shown on figure 3, before the second gypsum mould push-and-pull cylinder 11
End is provided with connection ring, and retaining mechanism includes push rod 27, spring 26, and spring 26 is placed on push rod 27,
The assembly of spring 26 and push rod 27 has two, is disposed opposite to each other, and retaining mechanism can entangle Gypsum Fibrosum
The connection ring of type push-and-pull cylinder 11 front end, it is achieved connect.
With continued reference to Fig. 1, pressurized canister 6 is built-in with second slideway the 12, second gypsum mould push-and-pull cylinder 11,
Pressurized canister 6 top has the second observation window 7, and right side opening has hinged door 10, defeated for the input of mould
Going out, realize sealing with the second sealing ring 9 and hinged door 10 clamping, pressurized canister 6 has pressurization on medial wall
Gas pipeline 8, is connected with pressue device.
In use, clean aluminium alloy ingots stripping and slicing can be placed in crucible 20, simultaneously at charging bucket
SiCp powder (granularity is in 5-30 μm), alterant and the fining agent of pretreatment is successively added in 3,
And the seal cover board 2 on preparation-pouring can 1, drop bar 25 and charging bucket 3 upper end cover are locked
Seal, start vacuum extractor 14, by the vacuum lead on preparation-pouring can 1 sidewall to preparation
-pouring can 1 evacuation.Evacuation is to make the molten aluminium alloy in subsequent preparation process complete with air
Full isolation, can avoid molten aluminium alloy air-breathing and oxidation.Vacuum reaches 5-10Pa, and energising starts to make
Aluminium ingot melts, and after aluminium ingot fusing in crucible 20, falls charging-agitator 4, by feeding-stirring
Mix and put into fritter aluminium ingot on device 4 and realize secondary charging；After aluminium ingot is completely melt, temperature controls at 690 DEG C
～710 DEG C, charging bucket 3 is slowly added to SiCp powder, and charging-agitator 4 carries out reverse agitating function simultaneously,
Rotating speed, at 100-120 rev/min, is spaced forward stirring in 2-5 minute, and move in circles 15-20min；Afterwards
Melt temperature drops to 590 DEG C～620 DEG C, and forward stirs, and rotating speed rises to 1100-1300 rev/min,
Being spaced 5-10 minute reverse agitating function, move in circles 30-40min；Melt is progressively heated up, reduces simultaneously
Forward and reverse speed of agitator, observes the steady situation continued of liquid level and reduces speed, and temperature rises to 690 DEG C～710 DEG C,
Being slowly added to alterant and fining agent, rotating speed is at 200-300 rev/min, positive/negative to time 10-20mmin；
Prepared by melt, wait to be cast.
After prepared by melt, open the hinged door 10 in pressurized canister 6, by (pre-for preheating gypsum mould 22
Hot temperature 200 DEG C-300 DEG C) it is placed in pressurized canister 6 on second slideway 12, after locking hinged door 10,
Start vacuum extractor 14, when making pressurized canister 6 vacuum reach 5-10Pa, open lift cylinder 13,
Open drop bar 25, gypsum mould 22 is pushed in preparation-pouring can 1 on first slideway 23.
After gypsum mould 22 arrives on the first slideway 23, the first gypsum mould push-and-pull cylinder 21 touches stone
During retaining mechanism in cream type 22, rely on gypsum mould down thrust to be backed down by both sides push rod 27, and depend on
First gypsum mould push-and-pull cylinder 21 front end is connected ring set by the elastic force by the spring 26 on both sides push rod 27
Live, it is achieved be connected with gypsum mould 22.Adjust gypsum mould 22 position, to ensure Al alloy composite
Liquation flows in gypsum mould 22 die cavity with even pace.Start crucible inclining rotary mechanism 17 by crucible 20
Tilt to pour into a mould, move left and right gypsum mould 22, after being prepared by Al alloy composite at once simultaneously
Cast, under high vacuum state, cast avoids gypsum mould " to feel suffocated ", prevents aluminium alloy compound material simultaneously
The fluidity of molten that material melt causes because of air-breathing, oxidation reduces, and so can prevent foundry goods from producing gas
Hole and inclusion defect, can guarantee that again the smooth shaping of complex thin-walled member.
After the cast of Al alloy composite melt gypsum mould terminates, immediately with the first gypsum mould push-and-pull cylinder
Gypsum mould 22 is pushed the second slideway 12 in pressurized canister 6 by 21, because the second slideway 12 is relatively flat with
Push-and-pull cylinder 21 moment disengages.The second gypsum mould push-and-pull gas is opened after putting down drop bar 25 and putting in place
Cylinder 11 promotes gypsum mould 22 top tight sealing slide plate 25.Utilize pressue device that pressurized canister 6 is pressurizeed, logical
Cross and gypsum mould 22 aluminum liquid surface is applied pressure, promote Al alloy composite liquation to accelerate feeding, anti-
Only foundry goods produces shrinkage defect, makes alloy structure fine and close, thus is conducive to improving the inherent matter of thin-wall part
Amount.Then, pressure rises to 500-800Pa, pressurize 5-10min；After melt solidification, by pressurized canister 6
Pressure release, to atmospheric pressure, opens hinged door 10, takes out gypsum mould 22.Repeat cast, the step of solidification is
Can realize producing continuously.
Fig. 5-6 is that the aluminum matrix composite complex thin-walled member integration system of the present invention is for aluminium alloy compound material
Material microscopic structure, hence it is evident that visible SiCp (granularity 12m) the most substantially uniform distribution, seldom
Occur reuniting.This high-quality thin-wall part is hardly resulted in by other Preparation equipments or method.
Although the principle of the present invention having been carried out detailed retouching above in conjunction with the preferred embodiments of the present invention
State, it should be appreciated by those skilled in the art that above-described embodiment is only the schematic realization to the present invention
The explanation of mode, not comprises the restriction of scope to the present invention.It is right that details in embodiment is not intended that
The restriction of the scope of the invention, without departing from the spirit and scope of the present invention, any based on this
The equivalent transformation of inventive technique scheme, simple replacement etc. obviously change, and all fall within the present invention and protect
Within the scope of protecting.
Claims (10)
1. an aluminum base composite material thin wall part integration system is for former, it is characterised in that institute
State and prepare former and include the preparation-pouring can (1) for preparing aluminum matrix composite and pressurized canister
(6) sidewall that, described preparation-pouring can (1) is adjacent with described pressurized canister (6) is provided with window conveyor
Mouthful, communicating with described pressurized canister (6), described conveying window is provided with sealing mechanism for keeping described
Sealing relative to each other between preparation-pouring can (1) and pressurized canister (6),
Described preparation-pouring can (1) is built-in with smelting furnace (19), crucible (20), the first casting moulds
Tool driving means (21), casting die (22) and the first slideway (23), and described preparation-cast
Tank (1) is connected with vacuum extractor (14), and the top of described preparation-pouring can (1) also sets up
Having the charging bucket (3) through its roof and charging-agitator (4), described crucible (20) is placed in institute
State in smelting furnace (19), be used for accommodating and melting aluminium ingot, described crucible (20) and described smelting furnace
(19) be provided with the mouth of a river (18) on, described smelting furnace (19) be provided with inclining rotary mechanism (17) in order to
Smelting furnace (19) is driven to make it vert to described casting mold (22), described casting die (22)
It is positioned at below described smelting furnace (19) sidepiece, the described mouth of a river (18) and is positioned over described first and slide
On road (23), described first casting die driving means (21) is connected with described casting mold (22),
For driving described casting die (22) in the upper motion of described first slideway (23)；
Described pressurized canister (6) includes pressue device (8), mould input/output port (10), second waters
Note die drive unit (11) and the second slideway (12), and be connected with vacuum extractor (14).
Described first slideway (23) and described second slideway (12) lay respectively at described conveying window
Both sides, with allow described casting mold (22) after casting complete through described conveying window from described system
Standby-pouring can (1) pushed to described pressurized canister (6).
The standby shaping of aluminum base composite material thin wall part integration system the most according to claim 1 sets
It is standby, it is characterised in that
Described sealing mechanism includes the first sealing ring (24), drop bar (25), guide rod (28), rises
Sending down the abnormal ascending QI cylinder (13) and guide pin bushing (16), described lift cylinder (13) and described drop bar (25)
Between connect with described guide pin bushing (16), described lift cylinder (13), described guide pin bushing (16) and described
Each 2 of guide rod (28), is respectively placed in described drop bar (25) both sides, described drop bar (25)
Described guide rod (28) along both sides moves, and described first sealing ring (24) is used for realizing described sealing
Slide plate (25) and the sealing of described preparation-pouring can (1).
Aluminum base composite material thin wall part integration system the most according to claim 2 for former,
It is characterized in that, the top of described preparation-pouring can (1) is provided with described seal cover board (2), institute
The top stating preparation-pouring can (1) uses described seal cover board (2) to be isolated from the outside, described charging
Bucket (3) is through described seal cover board (2) and points to described crucible (20).
Aluminum base composite material thin wall part integration system the most according to claim 1 for former,
It is characterized in that, described second casting mold driving means (11) front end is provided with connection ring, described in water
The correspondence position of injection molding tool (22) is provided with retaining mechanism, and described retaining mechanism includes push rod (27), bullet
Spring (26), described spring (26) is placed on described push rod (27), described spring (26) and described
The assembly of push rod (27) has 2, the composition that is disposed opposite to each other retaining mechanism, described retaining mechanism
The connection ring of described gypsum mould push-and-pull cylinder (11) front end can be entangled, it is achieved connect.
Aluminum base composite material thin wall part integration system the most according to claim 1 for former,
It is characterized in that, described charging-agitator (4) uses six blade constructions.
Aluminum base composite material thin wall part integration system the most according to claim 1 for former,
It is characterized in that, be levels structure in described charging bucket (3), and completely isolated with outside, upper strata
Equipped with alterant and fining agent, lower floor divides equipped with SiCp powder, described charging bucket (3) interior levels
Not arranging ball valve (15), described ball valve (15) is used for controlling charging rate.
Aluminum base composite material thin wall part integration system the most according to claim 1 for former,
It is characterized in that, the described mouth of a river (18) are built-in with foam ceramic filter.
Aluminum base composite material thin wall part integration system the most according to claim 1 for former,
It is characterized in that, described vacuum extractor (14) is connected with described preparation-pouring can (1) sidewall,
Pressue device (8) is connected with described pressurized canister (6) sidewall.
9. an aluminum base composite material thin wall part integration system is for manufacturing process, it is characterised in that described
Method comprises the steps of:
Step 1, aluminium alloy ingots is melted and stir under vacuum conditions；
Step 2, after aluminium alloy ingots is completely melt, control temperature, at 690 DEG C～710 DEG C, gradually to add
Entering SiCp powder, carry out reverse agitating function simultaneously, rotating speed is at 100-120 rev/min；
Step 3, interval forward stirring in 2-5 minute, move in circles 15-20min；
Step 4, melt temperature dropping to 590 DEG C～620 DEG C, forward stirs, and rotating speed rises to 1100-1300
Rev/min, it is spaced 5-10 minute reverse agitating function, move in circles 30-40min；
Step 5, progressively being heated up by melt, reduce forward and reverse speed of agitator simultaneously, temperature rises to 690 DEG C
～710 DEG C, it being slowly added to alterant and fining agent, rotating speed is at 200-300 rev/min, positive/negative to the time
10-20mmin；
Step 6, casting mold is preheated, and utilize obtained melt to pour into a mould；
After step 7, cast terminate, pressurizeing casting mold immediately, pressure rises to 500-800Pa,
Pressurize 5-10min；
At the end of step 8, solidification, pressure release is to atmospheric pressure.
Aluminum base composite material thin wall part integration system the most according to claim 9 for manufacturing process,
It is characterized in that, described method passes through the equipment realization in claim 1-8 described in any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN110125367A (en) * | 2019-04-29 | 2019-08-16 | 上海工程技术大学 | A kind of device being used to prepare more metal fiber composites and control method |
| CN110270662A (en) * | 2019-04-28 | 2019-09-24 | 天津幻丝眼镜有限公司 | A kind of closestool proposes lid device production equipment |
| CN114427044A (en) * | 2020-10-29 | 2022-05-03 | 有研工程技术研究院有限公司 | Preparation device and method for high-toughness cast aluminum-based composite material |
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