CN106623938A - Spray forming device for ultrahard aluminum lithium alloy - Google Patents
Spray forming device for ultrahard aluminum lithium alloy Download PDFInfo
- Publication number
- CN106623938A CN106623938A CN201611182264.9A CN201611182264A CN106623938A CN 106623938 A CN106623938 A CN 106623938A CN 201611182264 A CN201611182264 A CN 201611182264A CN 106623938 A CN106623938 A CN 106623938A
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- CN
- China
- Prior art keywords
- fixed
- lithium alloy
- rotating machine
- electric rotating
- settling chamber
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/115—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by spraying molten metal, i.e. spray sintering, spray casting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/003—Apparatus, e.g. furnaces
Abstract
The invention discloses a spray forming device for ultrahard aluminum lithium alloy. The device comprises a rotating mechanism, a lifting mechanism and a receiving disc. The device is characterized in that the lifting mechanism comprises a lead screw, a lead screw sleeve, guide rods and a lifting support; the lead screw sleeve is fixed to the middle of the lifting support, an internal thread inside the lad screw sleeve is in threaded connection with an external thread on the outer side of the lead screw, the two sides of the lifting support are provided with two sets of guide rod holes in the vertical direction, the two sets of guide rods penetrate through the guide rod holes, the two sets of guide rods are fixed between a chassis and a fixing base of a lifting motor, the rotating mechanism comprises a rotating shaft, a rotating motor and a rotating motor fixing base, the upper end of the rotating shaft is connected with the receiving disc, the two ends of the rotating motor fixing base are fixed to the front portion of the lifting support through fixing frames, the receiving disc is arranged at the lower portion of a settling chamber, a leakage bag is arranged on the side of the top of the settling chamber, and the lower portion of the leakage bag is communicated with the settling chamber through a nozzle. The device has the advantages of being high in forming speed, good in technological stability and high in finished ingot blank rate.
Description
Technical field
The invention belongs to aluminium alloy spray forming technology field, and in particular to a kind of superhard aluminium lithium alloy is injected into shape dress
Put.
Background technology
Aluminium lithium alloy has low-density, high elastic modulus, high specific strength and specific stiffness, good fatigue behaviour, excellent
The weldability that high temperature and cryogenic property, excellent decay resistance, remarkable superplasticforming are become reconciled etc. is many excellent comprehensive
Performance is closed, its intensity can match in excellence or beauty with the aluminium alloys such as 2024,7075；Replacing the high-strength aluminum alloy of routine with it can make structure matter
Amount mitigates 10%～20%, and rigidity improves 15%～20%, and aluminium lithium alloy is compared with composite, with high-low temperature resistant,
Resistant to damage and can repair, the advantage of easy care, therefore, aluminium lithium alloy becomes 21 century Aero-Space and weapon industry field most
The structural metallic materials of potentiality.
The existing operation for producing superhard aluminium lithium alloy is that the liquid alloy melt that will be prepared is cast, and solidification forms aluminium lithium
Alloy ingot blank, then again by becoming aviation to one or more deformations such as ingot blank applying extruding, rolling, forging, looping mill rollings
Raw material or component that space flight can be used；It is related to the production link of process of setting under normal circumstances (including molding, semi-continuous casting
Deng) be not manufactured parts final operation, but due to " Structure Inheritance " phenomenon of metal material, formed in process of setting
Material structure but almost along with part whole life cycle, once solidification production link occur chemical composition inequality
Even property and thick tissue morphology, following process would become hard to be effectively improved, and finally affect the performance of part；It is reported that there is coloured gold
In category Material Manufacturing Process, about 70% waste product is relevant with the defect that ingot casting is present, in addition, solidification ingot blank tissue also affects material
The processing characteristics of material, therefore, solidification production link is most important operation in metal material production；For aluminium lithium alloy ingot casting
Production, existing semi-continuous casting solidification technology be primarily present gross segregation it is serious the characteristics of.
Segregation affects very big on ingot quality, and dendritic segregation typically can be eliminated by processing and heat treatment, but in dendrite
Spacing arm can not be eliminated when larger, to product chemical property can be caused uneven；Cyrystal boundary segregation makes meltable eutectic be enriched in crystalline substance
Grain border is in desmachyme, easily makes ingot casting that hot tearing is produced in cooling procedure, and makes product that grain boundary corrosion easily to occur；Gross segregation
The tissue and performance of ingot casting and converted products can be made very uneven, while also resulting in the processing characteristics and yield rate drop of ingot casting
It is low, material cost is improved, all kinds of segregations are all the inevitable outcomes of solute redistribution in process of setting.
Aluminium lithium alloy compares other common aluminum alloys and segregation easily occurs, and mainly has following reason：
1) density of Li is only the 1/5 of aluminium, therefore gravity segregation makes lithium be difficult to be homogeneously added into aluminium, it was reported that containing 1%
In the aluminium alloy of lithium, inside melt, about 1/2 lithium atom is in phase boundary for about 1/20 lithium atom.
2) Li is surface reactive material, there is very high mobility in the melt, in addition the fusing point (182 DEG C) and Al of metal Li
Difference is larger, therefore, the easy precipitation of Li atoms forms the second phase of crystallization in the process of setting of aluminium lithium alloy；
3) Li can be greatly lowered smelt surface tension, add 1% lithium, and surface tension reduces by 60%.This promotees significantly
Enter the diffusion of other alloying elements such as Cu, Mg, Mn, Zn, cause their segregations on crystal boundary to form low melting point eutectic phase and thick
The big phase of indissoluble second, these thick second in grain boundaries intermittently, be distributed it is very uneven, this ingot casting can be caused subsequently plus
Occur hot tearing during work, and toughness of material is more low.
Therefore, it is difficult to prepare Al-Li alloy of the Li mass fractions more than 3% with ingot metallurgy method, it is impossible to meet light-duty conjunction
The requirement of gold, as segregation causes unstable properties during low Li contents aluminium lithium alloy is prepared, yield rate is low, cost
Improve etc..
Want the aluminium lithium alloy ingot blank for obtaining the uniform segregation-free of chemical composition, there are two striving directions, one is to allow whole
The all positions of ingot blank to the alloy atom sufficiently long time all slowly and identical cooling velocity solidifies, spreading
It is even；Another is exactly rapid solidification, and uniform liquid alloy melt is solidified as solid-state by moment, allows alloy atom to have little time diffusion
Segregation；But hardly possible employing first kind of way in actual production, common practice is remained updates foundry engieering,
From semi-continuous casting is molded to, cooldown rate is improved constantly.But ingot blank specification is bigger, ingot blank inside and surface in cooling procedure
Thermograde it is bigger, cooling velocity difference it is bigger, be more easily caused gross segregation cause ingot blank cracking scrap, therefore, tradition
Foundry engieering is difficult to produce three-dimensional big specification aluminium lithium alloy ingot blank.
Also it is exactly to use powder metallurgy, aluminium lithium alloy is prepared into the uniform powder of chemical composition by first rapid solidification, then
Aluminium lithium alloy ingot blank is gone out by compacting, SINTERING PRODUCTION；But it is long that powder metallurgy removed operation, powder surface is oxidizable to introduce miscellaneous
Matter, it is difficult to outside the shortcomings of being densified, big specification is also the bottleneck that it cannot break through, and it is difficult with powder metallurgy production and meets aviation
The demand of the big specification aluminium lithium alloy ingot blank of space flight.
To sum up, the production of commercial size aluminium lithium alloy has very big technical bottleneck, using conventional casting technologies hardly
The big specification aluminium lithium alloy ingot blank of three-dimensional for meeting industrial applications can be very well produced, be there is no utilize spray forming technology at present
The report of production commercial size aluminium lithium alloy；Therefore, a kind of jet shaper of superhard aluminium lithium alloy is invented to aluminium lithium alloy
Large-scale application it is significant.
The content of the invention
It is an object of the invention to overcome above-mentioned the deficiencies in the prior art, there is provided a kind of reaction-injection moulding of superhard aluminium lithium alloy
Device.
A kind of jet shaper of superhard aluminium lithium alloy, including：Rotating mechanism, elevating mechanism, take-up reel, its feature exists
In：The elevating mechanism includes screw mandrel, screw rod bushing, guide rod, lifting support, and the screw rod bushing is fixed on the middle part of lifting support,
External screw thread threaded connection on the outside of internal thread screw mandrel in screw rod bushing, the both sides of lifting support are vertically provided with two groups of guide rods
Hole, two groups of guide rods pass through guide rod hole, two groups of guide rods to be fixed between lifting motor fixed seat and chassis, and one end of screw mandrel passes through silk
Bar shaft coupling is connected with the main shaft of lifting motor, and the rotating mechanism includes rotating shaft, electric rotating machine, electric rotating machine fixed seat,
The upper end of the rotating shaft is connected with take-up reel, and the bottom of rotating shaft is connected by rotating shaft shaft coupling with the main shaft of electric rotating machine
Connect, electric rotating machine is fixed in electric rotating machine fixed seat, the two ends of electric rotating machine fixed seat are fixed on a liter descending branch by fixed mount
The front portion of frame, the take-up reel is arranged on the bottom of settling chamber, and the side at the top of settling chamber is provided with bottom pour ladle, and the bottom of bottom pour ladle passes through
Nozzle is communicated with settling chamber.
Preferably, the other end of the screw mandrel is inserted into bearing housing, and bearing housing is fixed on the middle part on chassis.
Preferably, the rotating shaft passes through axle sleeve, axle sleeve to be fixed on the center of settling chamber bottom.
Preferably, the electric rotating machine and lifting motor are stepper motor.
Compared with prior art, beneficial effects of the present invention：
The present invention realizes the shaping of superhard aluminium lithium alloy by spray forming technology, with shaping rate height, process stabilizing
Good, ingot blank high yield rate the advantage of property；Simultaneously the rotation of take-up reel is realized by rotating mechanism and elevating mechanism and is freely lifted,
The stage of spray forming process of aluminium lithium alloy ingot blank can be controlled by controlling the rotating speed of electric rotating machine and lifting motor, so as to
Further improve the quality of product.
Description of the drawings
Fig. 1 is a kind of structural representation of the jet shaper of superhard aluminium lithium alloy of the present invention.
Fig. 2 is the top view of Fig. 1.
Fig. 3 is the structural representation of elevating mechanism in the present invention.
In figure, 1, bottom pour ladle, 2, nozzle, 3, settling chamber, 4, aluminium lithium alloy ingot blank, 5, take-up reel, 6, axle sleeve, 7, rotating shaft, 8,
Lifting support, 9, guide rod, 10, chassis, 11, electric rotating machine fixed seat, 12, electric rotating machine, 13, rotating shaft shaft coupling, 14, fixed
Frame, 15, lifting motor fixed seat, 16, lifting motor, 17, screw mandrel shaft coupling, 18, screw mandrel, 19, screw rod bushing, 20, bearing housing.
Specific embodiment
Referring to Fig. 1, Fig. 2, Fig. 3, a kind of jet shaper of superhard aluminium lithium alloy, including：Rotating mechanism, lift
Structure, take-up reel 5, it is characterised in that：The elevating mechanism includes screw mandrel 18, screw rod bushing 19, guide rod 9, lifting support 8, the silk
Rod set 19 is fixed on the middle part of lifting support 8, the external screw thread threaded connection in the outside of internal thread screw mandrel 18 in screw rod bushing 19, lifting
The both sides of support 8 are vertically provided with two groups of guide rod holes, and two groups of guide rods 9 pass through guide rod hole, two groups of guide rods 9 to be fixed on lifting electricity
Between machine fixed seat 15 and chassis 10, one end of screw mandrel 18 is connected by screw mandrel shaft coupling 17 with the main shaft of lifting motor 16,
The rotating mechanism includes rotating shaft 7, electric rotating machine 12, electric rotating machine fixed seat 11, upper end and the take-up reel 5 of the rotating shaft 7
It is connected, the bottom of rotating shaft 7 is connected by rotating shaft shaft coupling 13 with the main shaft of electric rotating machine 12, and electric rotating machine 12 is fixed on
In electric rotating machine fixed seat 11, the two ends of electric rotating machine fixed seat 11 are fixed on the front portion of lifting support 8, institute by fixed mount 14
The bottom that take-up reel 5 is arranged on settling chamber 3 is stated, the side at the top of settling chamber 3 is provided with bottom pour ladle 1, and the bottom of bottom pour ladle 1 passes through nozzle 2
Communicate with settling chamber 3.
The other end of the screw mandrel 18 is inserted into bearing housing 20, and bearing housing 20 is fixed on the middle part on chassis 10.
The rotating shaft 7 passes through axle sleeve 6, axle sleeve 6 to be fixed on the center of the bottom of settling chamber 3.
The electric rotating machine 12 and lifting motor 16 are stepper motor.
Technical solution of the present invention is exemplarily described above in conjunction with accompanying drawing to invention, it is clear that the present invention is implemented
It is not subject to the restrictions described above, as long as employ the various unsubstantialities that the method for the present invention is conceived and technical scheme is carried out changing
Enter, or it is not improved the design of invention and technical scheme are directly applied into other occasions, in protection scope of the present invention
Within.
Claims (4)
1. a kind of jet shaper of superhard aluminium lithium alloy, including：Rotating mechanism, elevating mechanism, take-up reel (5), its feature
It is：The elevating mechanism includes screw mandrel (18), screw rod bushing (19), guide rod (9), lifting support (8), and the screw rod bushing (19) is solid
The middle part of lifting support (8) is scheduled on, the external screw thread threaded connection on the outside of the internal thread screw mandrel (18) in screw rod bushing (19) rises descending branch
The both sides of frame (8) are vertically provided with two groups of guide rod holes, and through guide rod hole, two groups of guide rods (9) are fixed on liter to two groups of guide rods (9)
Between drop motor fixing seat (15) and chassis (10), one end of screw mandrel (18) is by screw mandrel shaft coupling (17) and lifting motor (16)
Main shaft be connected, the rotating mechanism include rotating shaft (7), electric rotating machine (12), electric rotating machine fixed seat (11), the rotating shaft
(7) upper end is connected with take-up reel (5), and the bottom of rotating shaft (7) is by rotating shaft shaft coupling (13) and electric rotating machine (12)
Main shaft be connected, electric rotating machine (12) is fixed in electric rotating machine fixed seat (11), the two ends of electric rotating machine fixed seat (11)
The front portion of lifting support (8) is fixed on by fixed mount (14), the take-up reel (5) is arranged on the bottom of settling chamber (3), is deposited
Side at the top of room (3) is provided with bottom pour ladle (1), and the bottom of bottom pour ladle (1) is communicated by nozzle (2) with settling chamber (3).
2. a kind of jet shaper of superhard aluminium lithium alloy as claimed in claim 1, it is characterised in that：The screw mandrel (18)
The other end be inserted into bearing housing (20), bearing housing (20) is fixed on the middle part of chassis (10).
3. a kind of jet shaper of superhard aluminium lithium alloy as claimed in claim 1, it is characterised in that：The rotating shaft (7)
Through axle sleeve (6), axle sleeve (6) is fixed on the center of settling chamber (3) bottom.
4. a kind of jet shaper of superhard aluminium lithium alloy as claimed in claim 1, it is characterised in that：The electric rotating machine
And lifting motor (16) is stepper motor (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611182264.9A CN106623938A (en) | 2016-12-20 | 2016-12-20 | Spray forming device for ultrahard aluminum lithium alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611182264.9A CN106623938A (en) | 2016-12-20 | 2016-12-20 | Spray forming device for ultrahard aluminum lithium alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106623938A true CN106623938A (en) | 2017-05-10 |
Family
ID=58833822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611182264.9A Pending CN106623938A (en) | 2016-12-20 | 2016-12-20 | Spray forming device for ultrahard aluminum lithium alloy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106623938A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109093119A (en) * | 2018-09-10 | 2018-12-28 | 佛山峰合精密喷射成形科技有限公司 | A kind of injection forming and powder by atomization double-duty plant |
| CN112958782A (en) * | 2021-02-03 | 2021-06-15 | 安徽建业科技有限公司 | Melt-blown deposition device for melt-blown forming of aluminum substrate |
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|---|---|---|---|---|
| JPH01313181A (en) * | 1988-06-10 | 1989-12-18 | Daido Steel Co Ltd | Spray casting device |
| CN102145387A (en) * | 2011-03-24 | 2011-08-10 | 江苏豪然喷射成形合金有限公司 | Double-nozzle-scanning inclined spray type cylinder blank injection moulding device |
| CN104651684A (en) * | 2013-11-25 | 2015-05-27 | 中国兵器工业第五二研究所 | Aluminum alloy structure material and preparation thereof |
| CN204934608U (en) * | 2015-08-26 | 2016-01-06 | 佛山峰合精密喷射成形科技有限公司 | The manufacturing equipment of precise spray forming metal tube |
| CN105345004A (en) * | 2015-10-15 | 2016-02-24 | 江苏豪然喷射成形合金有限公司 | Method for manufacturing three-dimensional large-size aluminum-lithium alloy round ingot through spray forming |
| CN205228810U (en) * | 2015-12-14 | 2016-05-11 | 合肥雄强数控科技有限公司 | Car electric switch performance test bench |
| CN206445215U (en) * | 2016-12-20 | 2017-08-29 | 江苏豪然喷射成形合金有限公司 | A kind of jet shaper of superhard aluminium lithium alloy |
-
2016
- 2016-12-20 CN CN201611182264.9A patent/CN106623938A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01313181A (en) * | 1988-06-10 | 1989-12-18 | Daido Steel Co Ltd | Spray casting device |
| CN102145387A (en) * | 2011-03-24 | 2011-08-10 | 江苏豪然喷射成形合金有限公司 | Double-nozzle-scanning inclined spray type cylinder blank injection moulding device |
| CN104651684A (en) * | 2013-11-25 | 2015-05-27 | 中国兵器工业第五二研究所 | Aluminum alloy structure material and preparation thereof |
| CN204934608U (en) * | 2015-08-26 | 2016-01-06 | 佛山峰合精密喷射成形科技有限公司 | The manufacturing equipment of precise spray forming metal tube |
| CN105345004A (en) * | 2015-10-15 | 2016-02-24 | 江苏豪然喷射成形合金有限公司 | Method for manufacturing three-dimensional large-size aluminum-lithium alloy round ingot through spray forming |
| CN205228810U (en) * | 2015-12-14 | 2016-05-11 | 合肥雄强数控科技有限公司 | Car electric switch performance test bench |
| CN206445215U (en) * | 2016-12-20 | 2017-08-29 | 江苏豪然喷射成形合金有限公司 | A kind of jet shaper of superhard aluminium lithium alloy |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109093119A (en) * | 2018-09-10 | 2018-12-28 | 佛山峰合精密喷射成形科技有限公司 | A kind of injection forming and powder by atomization double-duty plant |
| CN112958782A (en) * | 2021-02-03 | 2021-06-15 | 安徽建业科技有限公司 | Melt-blown deposition device for melt-blown forming of aluminum substrate |
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Application publication date: 20170510 |