CN110016572A - A kind of device of aluminium alloy melt in-line purification - Google Patents
A kind of device of aluminium alloy melt in-line purification Download PDFInfo
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- CN110016572A CN110016572A CN201910260409.XA CN201910260409A CN110016572A CN 110016572 A CN110016572 A CN 110016572A CN 201910260409 A CN201910260409 A CN 201910260409A CN 110016572 A CN110016572 A CN 110016572A
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- melt
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- aluminium alloy
- gas
- purification
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- 238000000746 purification Methods 0.000 title claims abstract description 37
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 21
- 239000000843 powder Substances 0.000 claims abstract description 28
- 238000007670 refining Methods 0.000 claims abstract description 22
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 17
- 238000002156 mixing Methods 0.000 claims abstract description 8
- 238000007664 blowing Methods 0.000 claims abstract description 7
- 239000000919 ceramic Substances 0.000 claims abstract description 7
- 238000005192 partition Methods 0.000 claims abstract description 4
- 239000006260 foam Substances 0.000 claims abstract description 3
- 230000008520 organization Effects 0.000 claims abstract description 3
- 239000007789 gas Substances 0.000 claims description 27
- 239000011449 brick Substances 0.000 claims description 9
- 239000002904 solvent Substances 0.000 claims description 8
- 239000011261 inert gas Substances 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 230000008859 change Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 abstract description 10
- 229910052782 aluminium Inorganic materials 0.000 abstract description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 9
- 239000000956 alloy Substances 0.000 abstract description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 abstract 1
- 229910045601 alloy Inorganic materials 0.000 abstract 1
- 239000002131 composite material Substances 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 12
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 6
- 239000001257 hydrogen Substances 0.000 description 6
- 229910052739 hydrogen Inorganic materials 0.000 description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 238000009826 distribution Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000000155 melt Substances 0.000 description 4
- 239000000274 aluminium melt Substances 0.000 description 3
- 229910052786 argon Inorganic materials 0.000 description 3
- 229910052755 nonmetal Inorganic materials 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000007872 degassing Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005202 decontamination Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000005188 flotation Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000011089 mechanical engineering Methods 0.000 description 1
- 239000010813 municipal solid waste Substances 0.000 description 1
- 238000009856 non-ferrous metallurgy Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000001007 puffing effect Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B21/00—Obtaining aluminium
- C22B21/06—Obtaining aluminium refining
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B21/00—Obtaining aluminium
- C22B21/06—Obtaining aluminium refining
- C22B21/066—Treatment of circulating aluminium, e.g. by filtration
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
- C22B9/05—Refining by treating with gases, e.g. gas flushing also refining by means of a material generating gas in situ
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
- C22B9/10—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals with refining or fluxing agents; Use of materials therefor, e.g. slagging or scorifying agents
- C22B9/103—Methods of introduction of solid or liquid refining or fluxing agents
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
The invention belongs to non-ferrous metal purified treatment fields, are related to a kind of device of aluminium alloy melt in-line purification.It includes: the screwfeed firm gas powder mixed organization being made of variable-frequency motor (1), hopper (2), screw rod (3), gas powder mixing chamber (14), crucible (8) is separated into clean room (15) and filter chamber (16) by partition (13), clean room is connected to filter chamber by runner, ceramic foam filter plate (12) are arranged in the top of setting biasing rotating injecting powder device (6) and bottom blowing device in clean room, filter chamber (16).The present invention is able to achieve aluminum melt on-line continuous composite refining, greatly improves alloy refining quality and purification efficiency, while solving the problems such as refining agent and melt contacts are insufficient, liquid level is unstable, purification blind area, not high, the replacement inconvenience of filter service life.
Description
Technical field
The invention belongs to non-ferrous metallurgy fields, more particularly to a kind of device of aluminium alloy melt in-line purification.
Background technique
Cleaning molten is to ensure that the key technology of aluminum alloy materials metallurgical quality.Purifying aluminium alloy melt main purpose is
Except the hydrogen content and oxide inclusion in melt, to improve the quality of aluminium alloy.The method of aluminium melt purifying mainly has: solvent
Method, air blast, rotating and puffing argon method etc..Common addition refining agent purifies aluminum melt, although certain refining can be played the role of,
Since refining agent is easily clumped together, in order to reach effect, the amount of addition can be very big.Therefore, also there is gas+solvent
Method of refining.It is found through retrieval, a kind of " material-spraying device " participation number of patent application: 20092014473.8, gas and solvent are mixed
It is emitted directly toward in melt after conjunction, solvent is distributed in the surface of bubble in the melt, realizes the effect of dual refining.But this side
The bubble of method, formation is not tiny enough, and the dosage of solvent is also bigger.Shanghai Communications University develops " purifying aluminium alloy melt method "
Referring to number of patent application: purification gas is blown into aluminium using the method for rotary blowing by 0510026593.X, the purification device top
In melt, while purification gas is blown into melt by the bottom installation air brick of device.Shanghai College of Mechanical Engineering develops a kind of " apex angle
Multiple blowing type aluminum melt degassing method and device " is referring to number of patent application: 0910044935.9, the purification device by purification gas from
Rotating device is blown into aluminum melt, while purification gas is also blown into aluminum melt from the peripheral inlet port of purification device.These methods
It is larger to purify building volume, to be rectangular, in refining process the melt of the periphery of clean room and corner areas cannot with it is sufficient amount of
Bubble is in contact, and purification blind area occurs；It is more tiny in order to obtain and more in addition, these methods belong to center rotary blowing
Good bubble distribution situation, generally requires to realize using high speed rotation.But with the raising of revolving speed, melt liquid level will appear whirlpool
The protective film of whirlpool and vibration, melt liquid level is destroyed, and the slag and air on surface can enter in melt, increases the miscellaneous of melt
Matter；Air reacts with melt, i.e. scaling loss melt, and generates more hydrogen and be mingled with.In actual production, in order to prevent
The generation of liquid level swirl, is usually arranged baffle near rotor.But when melt refines, melt temperature is very high, rotary speed of rotator
Quickly, melt is very strong to the erosion corrosion effect of baffle, and the environment of baffle work is very severe, and service life is not high, higher cost,
And the material to fall off, which invades, will cause pollution in melt, the final quality for influencing melt.Suzhou Bo Neng stove scientific & technical corporation
" a kind of turbulence structure of depassing unit " is developed referring to number of patent application: 201210414279.9, the device is in deaeration
One piece of raised flow-disturbing block is respectively arranged in lining four sides, for eliminating liquid level swirl.This method increase the complexities of deaeration, together
When also shed into melt without solving the problems, such as that flow-disturbing block is easily washed.In addition, after existing technology purified treatment, often
Melt is passed through ceramic filter plate to be filtered, this mode is used to capture fine folder especially with aperture is smaller
When miscellaneous filter plate, it is easy to gap and is mingled with blocking and shortens the filter plate service life.
Summary of the invention
It is an object of the invention to overcome above-mentioned the deficiencies in the prior art, providing one kind can continuously in-line purification aluminium melt
Body significantly increases the activated interface of refining agent purification, sphere of action, extends action time, and it is blind to eliminate purification for liquid level stabilizing
Area is conveniently replaceable, the device of the aluminium melt purifying of high service life filter.
The present invention is achieved in the following ways:
A kind of device of aluminium alloy melt in-line purification, feature include by variable-frequency motor, hopper, screw rod, the mixing of gas powder
The screwfeed firm gas powder mixed organization of room composition, crucible are separated into clean room and filter chamber, clean room and filtering by partition
Room is connected to by runner, and setting biasing rotating injecting powder device and bottom blowing device in clean room, pottery is arranged in the top of filter chamber
Porcelain foamed filter plate.Bottom blowing device is made of air brick and inflatable mouth.Melt inlet is located above clean room, and melt is from upper
Flow through clean room under and, melt outlet is located above filter chamber, and purified melt passes through after filter plate from bottom to top from melt
Outlet outflow.Inert gas gas powder mixing chamber and refining agent form gas powder and circulate in biasing rotating injecting powder device after being sufficiently mixed
Form full and uniform tiny uniformly distributed cleaning by solvent bubble.
The device of above-mentioned aluminium alloy melt in-line purification, feature screw speed are controlled by variable-frequency motor, can be realized essence
Refine agent weight feed.
The device of above-mentioned aluminium alloy melt in-line purification, the content of refining agent is melt inlet melt in feature gas powder stream
The 0.1~0.5% of flow.
The device of above-mentioned aluminium alloy melt in-line purification, the rotary head of characteristic offset rotating injecting powder device to clean room bottom
Distance be 50~300mm, the distance at rotary head distortion clean room center is the 1/5~1/3 of clean room's base diameter.
The device of above-mentioned aluminium alloy melt in-line purification, feature air brick geomery is consistent with clean room, hole
Diameter is 10~100 μm.
The device of above-mentioned aluminium alloy melt in-line purification, characteristic filter plate are foamed ceramic filter plate, specification 40
~50ppi.
The present invention in use, dry refining agent is put into hopper, give screw rod reasonable revolving speed, make refining agent by variable-frequency motor
Feeding flow be melt flow 0.1~0.5% and inert gas after gas powder mixing chamber is sufficiently mixed, be blown into rotation spray
It in powder device, is sheared by high-speed rotating blade, purification bubble surface of the meeting Dispersed precipitate in fine uniform.This surface dispersion
The purification bubble of distribution solvent slowly rises in clean room, is sufficiently mixed, collides with the melt of downlink, the hydrogen diffusion in melt
Nonmetal inclusion collision into the bubble of rising, while in the bubble and melt risen is adsorbed and carries them and floats.More
The refining agent for dissipating distribution increases concentration gradient that hydrogen is spread into bubble and to field trash wetability, thus be easier to inhale hydrogen and
Dross inclusion adsorption, melt are also also stirred, thus significantly increase refining agent and purify the activated interface of bubble, sphere of action,
Time of contact is extended, while stirring also promotes the tiny aggregation being mingled with, is more advantageous to flotation removal.Agitating mode is biased,
Slipstream, pressure field and the velocity field of peritrochanteric melt are in mal-distribution, it is not easy to centripetal acceleration and centrifugal force are generated,
Liquid level is not in whirlpool when thus refining, and not increase baffle also can make liquid level steady.Purification gas is blown into and purifies simultaneously
Bottom shape size consistent bottom air brick in room is capable of forming the bubble that a large amount of diameters are 5mm and is full of clean room, disappears completely
Except purification dead angle.Behind clean room, large-sized nonmetal inclusion is efficiently removed melt, is then steeped by 40~50ppi
After foam ceramic filter plate, 10 μm or more of nonmetal inclusion is completely removed, and obtains pure very high aluminium alloy melt, complete
The full up industrial requirement of foot；Melt passes through filter plate from bottom to top, and impurity particle is blocked in filter lower end, when them
Reunite to certain size, can be mentioned significantly from the filter sedimentation that falls off to realize self purifying for filter due to self weight
The high service life of filter.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
In figure, 1 is variable-frequency motor, and 2 be hopper, and 3 be screw rod, and 4 be inert gas, and 5 be gas powder stream, and 6 be biasing rotation spray
Powder device, 7 be melt inlet, and 8 be crucible, and 9 be air brick, and 10 be purification gas, and 11 be melt outlet, and 12 be filter plate, 13
It is gas powder mixing chamber for partition, 14,15 be clean room, and 16 be filter chamber.
Specific embodiment
Aluminum melt flows into clean room 15 from melt inlet 7 with 400kg/h flow from top to bottom, and aluminum melt temperature is 750 DEG C；
15 base diameter of clean room is 400mm, liquid level 350mm；Dry refining agent is put into hopper 2, adjusts variable-frequency motor 1
The revolving speed for controlling screw rod 3 makes to refine agent flux 0.6kg/h, is 99.9% technical argon with air inflow 160ml/ by purity
Min, gas pressure are that 0.1MPa is blown into gas powder mixing chamber 14, form gas powder stream 5 after being sufficiently mixed and are passed through biasing rotating injecting powder dress
Set 6；Biasing 6 root diameter of rotating injecting powder device is 40mm, away from clean room bottom 60mm, in rotary head distortion clean room 15
The distance of the heart is 100mm, rotary speed of rotator 600rpm, the shear action of rotor, formation slowly rising Dispersed precipitate refining
The minute bubbles of the fine uniform of agent collide with reverse melt, carry out degasification removal of impurities；Bottom air brick 9 is blown into gas and adopts
It is 99.9% technical argon with purity, gas flow 0.18m3/h, gas pressure position 0.1MPa, 9 aperture of air brick is 20 μ
M, diameter 400mm, it is the uniform of 5mm effect that diameter can be generated in clean room 15, completely eliminates the purification of purification blind area
Bubble.The melt handled enters filter chamber 16, the foamed ceramic filter plate for being from bottom to top then 40ppi by specification
12, finally flowed out from melt outlet 11.In decontamination process, liquid level stabilizing absence of vortices, change efficiency and melt quality are mentioned
Height, available hydrogen content 0.08ml/100g；10 μm or less non-metallic inclusions are lower than the aluminum melt of 0.02% high-quality.
Claims (6)
1. a kind of device of aluminium alloy melt in-line purification, feature includes by variable-frequency motor (1), hopper (2), screw rod (3), gas
The screwfeed firm gas powder mixed organization of powder mixing chamber (14) composition, crucible (8) are separated into clean room (15) by partition (13)
With filter chamber (16), clean room is connected to filter chamber by runner, setting biasing rotating injecting powder device (6) and bottom in clean room
Ceramic foam filter plate (12) are arranged in the top of blowning installation, filter chamber (16).Bottom blowing device has air brick (9) and blows
Mouth (10) composition.Melt inlet (7) is located above clean room (15), and melt flows through clean room (15), melt outlet from top to bottom
(11) it is located above filter chamber (16), purified melt flows after passing through filter plate (12) from bottom to top from melt outlet (11)
Out.Inert gas (4) is blown into after gas powder mixing chamber (14) is sufficiently mixed with refining agent and forms gas powder stream (5), then passes to biasing
Full and uniform tiny uniformly distributed cleaning by solvent bubble is formed in rotating injecting powder device (6).
2. the device of aluminium alloy melt in-line purification according to claim 1, feature screw rod (3) revolving speed is by variable-frequency motor
(1) it controls, can be realized refining agent weight feed.
3. the device of aluminium alloy melt in-line purification according to claim 1, the content of feature gas powder stream (5) refining agent
It is the 0.1~0.5% of melt inlet (7) melt flow.
4. the device of aluminium alloy melt in-line purification according to claim 1, characteristic offset rotating injecting powder device (6)
Rotary head to clean room's (15) distance from bottom is 50~300mm, and the distance at rotary head distortion clean room (15) center is purification
The 1/5~1/3 of room bottom (15) diameter.
5. the device of aluminium alloy melt in-line purification according to claim 1, feature air brick (9) geomery and net
It is consistent to change room (15) bottom, aperture is 10~100 μm.
6. the device of aluminium alloy melt in-line purification according to claim 1, characteristic filter plate (12) is foamed ceramics
Filter plate, specification are 40~50ppi.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910260409.XA CN110016572A (en) | 2019-03-19 | 2019-03-19 | A kind of device of aluminium alloy melt in-line purification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910260409.XA CN110016572A (en) | 2019-03-19 | 2019-03-19 | A kind of device of aluminium alloy melt in-line purification |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110016572A true CN110016572A (en) | 2019-07-16 |
Family
ID=67190392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910260409.XA Pending CN110016572A (en) | 2019-03-19 | 2019-03-19 | A kind of device of aluminium alloy melt in-line purification |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110016572A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110343917A (en) * | 2019-08-20 | 2019-10-18 | 惠州市华顺祥实业有限公司 | The technique and its equipment of interruption preparation liquid silumin or silumin semi solid slurry |
| CN110527861A (en) * | 2019-10-16 | 2019-12-03 | 南通众福新材料科技有限公司 | A kind of aluminium alloy molten aluminum purification system and technique |
| CN111020224A (en) * | 2019-12-31 | 2020-04-17 | 徐州汉裕铝业有限公司 | Degassing box for aluminum cast-rolling coil |
| CN111496242A (en) * | 2020-05-09 | 2020-08-07 | 南通大学 | Turbulent flow type aluminum alloy melt deslagging and filtering device and using method thereof |
| CN112349440A (en) * | 2020-11-01 | 2021-02-09 | 百色学院 | Liquid metal purification device and application method thereof |
| CN117587239A (en) * | 2024-01-19 | 2024-02-23 | 北京航空航天大学 | Alloy melt purification method by co-blowing refining agent and refining gas |
| CN117604311A (en) * | 2024-01-24 | 2024-02-27 | 北京航空航天大学 | Aluminum alloy rotary blowing refining method based on three-channel rotor |
| CN117587239B (en) * | 2024-01-19 | 2024-04-19 | 北京航空航天大学 | Alloy melt purification method by co-blowing refining agent and refining gas |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110343917A (en) * | 2019-08-20 | 2019-10-18 | 惠州市华顺祥实业有限公司 | The technique and its equipment of interruption preparation liquid silumin or silumin semi solid slurry |
| CN110343917B (en) * | 2019-08-20 | 2024-02-20 | 惠州市华顺祥实业有限公司 | Process and equipment for intermittently preparing liquid high-silicon aluminum alloy or high-silicon aluminum alloy semi-solid slurry |
| CN110527861A (en) * | 2019-10-16 | 2019-12-03 | 南通众福新材料科技有限公司 | A kind of aluminium alloy molten aluminum purification system and technique |
| CN110527861B (en) * | 2019-10-16 | 2021-05-28 | 南通众福新材料科技有限公司 | Aluminum alloy liquid aluminum purification system and process |
| CN111020224A (en) * | 2019-12-31 | 2020-04-17 | 徐州汉裕铝业有限公司 | Degassing box for aluminum cast-rolling coil |
| CN111496242A (en) * | 2020-05-09 | 2020-08-07 | 南通大学 | Turbulent flow type aluminum alloy melt deslagging and filtering device and using method thereof |
| CN112349440A (en) * | 2020-11-01 | 2021-02-09 | 百色学院 | Liquid metal purification device and application method thereof |
| CN112349440B (en) * | 2020-11-01 | 2022-10-18 | 百色学院 | Liquid metal purification device and application method thereof |
| CN117587239A (en) * | 2024-01-19 | 2024-02-23 | 北京航空航天大学 | Alloy melt purification method by co-blowing refining agent and refining gas |
| CN117587239B (en) * | 2024-01-19 | 2024-04-19 | 北京航空航天大学 | Alloy melt purification method by co-blowing refining agent and refining gas |
| CN117604311A (en) * | 2024-01-24 | 2024-02-27 | 北京航空航天大学 | Aluminum alloy rotary blowing refining method based on three-channel rotor |
| CN117604311B (en) * | 2024-01-24 | 2024-04-19 | 北京航空航天大学 | Aluminum alloy rotary blowing refining method based on three-channel rotor |
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