CN107030266A - Melting adds sound magnetic coupling continuously casting integrated apparatus and method under a kind of vacuum condition - Google Patents
Melting adds sound magnetic coupling continuously casting integrated apparatus and method under a kind of vacuum condition Download PDFInfo
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- CN107030266A CN107030266A CN201710394134.XA CN201710394134A CN107030266A CN 107030266 A CN107030266 A CN 107030266A CN 201710394134 A CN201710394134 A CN 201710394134A CN 107030266 A CN107030266 A CN 107030266A
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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
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/10—Supplying or treating molten metal
- B22D11/11—Treating the molten metal
- B22D11/113—Treating the molten metal by vacuum treating
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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
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/10—Supplying or treating molten metal
- B22D11/11—Treating the molten metal
- B22D11/114—Treating the molten metal by using agitating or vibrating means
- B22D11/115—Treating the molten metal by using agitating or vibrating means by using magnetic fields
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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
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/16—Controlling or regulating processes or operations
- B22D11/18—Controlling or regulating processes or operations for pouring
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Abstract
Melting adds sound magnetic coupling continuously casting integrated apparatus and method under a kind of vacuum condition, belongs to field of metal casting technology.Described device includes the first vacuum chamber, the second vacuum chamber, vacuum-control(led) system, feed supplementing device, ultrasonic processing apparatus and drawing device.The present invention provides melting under a kind of vacuum condition and adds sound magnetic coupling continuously casting integrated apparatus and technology, the device can be widely used in the horizontal casting of the active alloy such as high temperature alloy, titanium alloy, magnesium alloy, rare earth metal and multicomponent non-crystaline amorphous metal and high-entropy alloy, can make under the melting, cast and electromagnetic/ultrasonic coupled field of alloy it is continuously shaped complete under vacuum conditions, and obtained level of alloy coutinuous casting casting has that any surface finish, composition be uniform, the effect of dense structure.
Description
Technical field
The invention belongs to technical field of metal material preparation, it is related to melting plus sound magnetic coupling under a kind of vacuum condition and continuously casts
Make integrated apparatus and method.
Background technology
According to electromagnetic induction principle, the electromagnetic force that alternating magnetic field is produced can be analyzed to the support force and Vertical Square of horizontal direction
Upward mixing power, the change of electromagnetic field frequency can cause the two direction electromagnetic forces to change, so that it is to crystallizer
There is significant difference in interior melt action rule：Low frequency magnetic field can produce the electromagnetic agitation effect inside larger mixing power, melt
Fruit is substantially.But it can also cause melt fluctuation aggravation in molten bath because of its strong stirring action simultaneously, metal liquid surface is easy
Cracking, is adversely affected to the protection in alloy casting process.The oxide-film of molten surface is also easily because of strong stirring action
And be rolled into melt and cause the defects such as oxide inclusion.Simultaneously as electromagnetism support force is smaller, it is impossible to effectively weaken strand and knot
Frictional force between brilliant device, is unfavorable for the improvement of ingot surface quality.Although with low frequency magnetic field on the contrary, having under high frequency magnetic field to melt
There is higher support force, but because mixing power is weaker, the improvement to melt is not obvious, it is impossible to reach crystal grain thinning, improves
The purpose of alloying component segregation.
Intermediate frequency magnetic field preferably combines the advantage of both of the above, both can effectively reduce molten metal and crystallizer wall it
Between on the basis of frictional force, while carrying out appropriate function composite by electromagnetic stirring to melt inside, reaching improves inside ingot tissue
Purpose.
Ultrasonic activation is introduced in casting metal solidification process, makes solidification ingot casting crystal grain refinement, even tissue, go degasification
Hole, the macroscopic view of casting and microsegregation are improved.Ultrasonic wave has good directionality, and penetration power is strong, it is easy to obtains and relatively concentrates
Acoustic energy the features such as, but its sphere of action in metal liquid is smaller.Under electromagnetic/ultrasonic coupling field action, electromagnetic field draws
The level and mixed flow up and down risen promotes moving cell to flow through ultrasonic influence area, improves the cluster of grains of remote ultrasonic probe
The broken probability of cluster, so as to decrease or even eliminate particle clusters, the even distribution of lifting enhancing particle realizes that electromagnetic field is indirect
Expand the purpose of ultrasonic field sphere of action.
Melting adds casting integratedization to complete under vacuum conditions, it is possible to prevente effectively from metal bath is in melting, cast etc.
During reacted generation impurity with air, therefore the device can be widely used in high temperature alloy, titanium alloy, magnesium and close
In the horizontal casting of the active alloy such as golden, rare earth metal and multicomponent non-crystaline amorphous metal and high-entropy alloy.
Publication number CN 101543885 describes a kind of continuous block metal glass shaping device and carries out horizontal continuous-casting
Method.This method uses graphite casting mould and water cooled copper mould for once main cooling, and secondary auxiliary cooling uses gas cooling mode, two
There is certain draught head in individual vacuum chamber.The device has larger cooling velocity, meets bulk metallic glass materials amorphous phase
The requirement of change.But, this method does not realize melting, the integration of casting process, and molten metal is not carried out at purification
Reason, there is field trash in molten metal, therefore be also easy to produce in process of setting heterogeneous forming core phenomenon.
Publication number CN 101244451, which describes a kind of Composite Field that applies, improves the device of horizontal continuous casting blank quality.The dress
Put and inert gas bubble generator is set in holding furnace bottom centre position, while setting travelling-magnetic-field to send out in holding furnace sidepiece
Raw device, sets power ultrasonic tool heads close to casting making-port in holding furnace, constraint magnet coil is set on the outside of crystallizer.But should
The use state of device is not vacuum state, thus be not suitable for high temperature alloy and titanium alloy, magnesium alloy, rare earth metal with
And the horizontal casting of the active alloy such as multicomponent non-crystaline amorphous metal and high-entropy alloy.
The content of the invention
To overcome the shortcomings of existing production technology, the present invention provides melting under a kind of vacuum condition and adds sound magnetic coupling continuously to cast
Make integrated apparatus and method, the device can be widely used in high temperature alloy, titanium alloy, magnesium alloy, rare earth metal and
In the horizontal casting of the active alloy such as multicomponent non-crystaline amorphous metal and high-entropy alloy, the melting, cast and electromagnetism of alloy/super can be made
Acoustical coupling off field continuously shaped completes under vacuum conditions, and obtained level of alloy coutinuous casting casting have any surface finish,
Composition is uniform, the effect of dense structure.
Technical scheme：
Melting adds sound magnetic coupling continuously casting integrated apparatus under a kind of vacuum condition, including the first vacuum chamber 1, second is true
Empty room 2, vacuum-control(led) system 8, feed supplementing device 9, ultrasonic processing apparatus 10 and drawing device 11；
Sealing dividing plate is set between the first vacuum chamber 1 and the second vacuum chamber 2, and sealing dividing plate is used for through draw bar provided with one
20 through hole；
Smelting furnace 3, insulation crucible 4, induction coil 5, crystallizer 6, intermediate frequency electromagnetic are laid in the first described vacuum chamber 1
Induction coil 7, seal bellows 17, the first thermocouple 22, metal bath 23, the thermocouple 30 of smelting furnace swing arm 27 and second；It is molten
Furnace 3 arranges that metal bath 23 therein is poured into insulation earthenware by the control smelting furnace 3 of smelting furnace swing arm 27 higher than insulation crucible 4
In crucible 4；
One end of smelting furnace swing arm 27 is fixed on the side wall of the first vacuum chamber 1 by sealed bearings and stretches out the first vacuum chamber
Outside 1, the other end is connected with smelting furnace 3, for fixing and toppling over smelting furnace 3；Insulation crucible 4 is fixed on the first vacuum by saddle
In room 1；First thermocouple 22 is positioned in smelting furnace 3, and is stretched into metal bath 23, the temperature for measuring metal bath 23
Degree；Induction coil 5 is respectively coated by the circumference in smelting furnace 3 and insulation crucible 4, for regulating and controlling in smelting furnace 3 and insulation crucible 4
The temperature of metal bath 23；
Crystallizer 6 includes graphite casting mould 24 and water cooled copper mould 25, for frozen metal melt 23；One end of graphite casting mould 24
It is connected with one end of water cooled copper mould 25, i.e., the two is coaxially connected and communicates；The other end of graphite casting mould 24 and the insulation phase of crucible 4
Logical, the metal bath 23 in insulation crucible 4 forms ingot casting in water cooled copper mould 25, and ingot casting pulls out water-cooled copper by draw bar 20
Mould 25；Graphite casting mould 24 circumferentially has intermediate frequency electromagnetic induction coil 7, for being carried for the continuous casting billet 26 and ingot casting in crystallizer 6
For support force, and it is the mixing power of the metal bath 23 in insulation crucible 4；Second thermocouple 30 is positioned over the side wall of graphite casting mould 24
On, for measuring the temperature of graphite casting mould 24；
Feed supplementing device 9 includes feed supplement storehouse 15 and feed supplement swing arm 16, and feed supplement storehouse 15 is hermetic fixed on the first vacuum chamber 1
Upper surface, directly over smelting furnace 3, for storing and adding trace alloying element into smelting furnace 3；Feed supplement swing arm 16 is located at
Between feed supplement storehouse 15 and smelting furnace 3, control to add the amount of trace alloying element in smelting furnace 3 by handle end；
Ultrasonic processing apparatus 10 is hermetic fixed on the top of the first vacuum chamber 1 by seal bellows 17, positioned at insulation
The surface of crucible 4, the ultrasonic amplitude transformer 19 of ultrasonic processing apparatus 10 is stretched into inside insulation crucible 4, suppresses the production of heterogeneous forming core
It is raw；
Isolating valve 12 is set in the second described vacuum chamber 2, and isolating valve 12 is arranged on sealing dividing plate, for controlling first
Pressure differential between the vacuum chamber 2 of vacuum chamber 1 and second；
Drawing device 11 includes draw bar 20, draw-gear 21 and continuous casting billet 26, and draw-gear 21 is arranged at the second vacuum
The outside of room 2；Continuous casting billet 26 is connected to the end of draw bar 20, and entirety is under the draw of draw-gear 21 in water cooled copper mould 25
Inside move horizontally, and pulled out strand from crystallizer 6 with the state being slidingly sealed；
Vacuum-control(led) system 8 includes vavuum pump 13 and discharge stomata 14, and vavuum pump 13 is hermetic fixed on the second vacuum
The outside of room 2；The upper surface of first vacuum chamber 1 and the second vacuum chamber 2 respectively sets a discharge stomata 14 and an inert gas
Valve 29；
Observation window 28 is arranged at the upper surface of the first vacuum chamber 1, the molten state for observing metal bath 23；
Described through hole, the internal diameter of graphite casting mould 24, the shape of the cross section of the internal diameter of water cooled copper mould 25 and draw bar 20
It is identical with size, it is ensured that when draw bar 20 with hole relative to moving, keep sealing state.
Melting adds sound magnetic coupling continuously casting integral method under a kind of vacuum condition, and this method comprises the following steps：
(1) molten alloy：Before molten alloy, draw bar 20 and continuous casting billet 26 are placed in initial position, make the end of continuous casting billet 26
Portion is located in graphite casting mould 24, and alloy then is put into smelting furnace 3；During melting, isolating valve 12 is first turned on, and close discharge gas
Hole 14 and inert gas valve 29, then by controlling vacuum-control(led) system 8, open vavuum pump 13, by the first vacuum chamber 1 and second
Vacuum chamber 2 is evacuated to 0.01-0.05Pa, closes vavuum pump 13；Inert gas valve 29 is opened, respectively to the He of the first vacuum chamber 1
Inert gas is filled with to 0.045-0.055MPa in second vacuum chamber 2, is made in the first vacuum chamber 1 and the second vacuum chamber 2 for protection
Atmosphere, closes inert gas valve 29, is then turned on the induction coil 5 outside smelting furnace 3, and fast melting alloy raw material is to complete
Melt, form metal bath 23, the temperature of metal bath 23 is measured by the first thermocouple 22, control the temperature of metal bath 23
It is higher than aluminium alloy liquidus temperature 5~50 DEG C；
(2) pour into a mould and be incubated：The induction coil 5 outside insulation crucible 4 is opened, insulation crucible 4 is preheated；By manual
Rotation smelting furnace swing arm 27 tilts smelting furnace 3, and metal bath 23 is poured into insulation crucible 4；Induction coil 5 is controlled, to
Insulation crucible 4 in the additional heat of metal bath 23 and make melt temperature uniform；
(3) ultrasound and magnetic field are applied：Start ultrasonic processing apparatus, ultrasonic wave is introduced by insulation earthenware by ultrasonic amplitude transformer 19
In metal bath 23 in crucible 4, the frequency of ultrasonic wave is 20kHz~80kHz, and power is 0.1~5kW, and sonication treatment time is 1
~60min, suppresses the generation of heterogeneous forming core；Meanwhile, alternating current is passed through to intermediate frequency electromagnetic induction coil 7, alternating magnetic field is produced,
The frequency of electric current is 300Hz~10kHz in intermediate frequency electromagnetic induction coil, and current strength is the magnetic strength in 10~4000A, crystallizer
It is 0.005~0.1T to answer intensity, and the power of horizontal direction produced by intermediate frequency magnetic field is to 23 stirrings of metal bath in insulation crucible 4
Effect, while producing certain heat, the power for the vertical direction that intermediate frequency magnetic field is produced carries for the continuous casting billet 26 and ingot casting in crystallizer 6
For support force；
(4) continuously casting：The temperature of metal bath 23 in graphite casting mould 24 is measured by the second thermocouple 30, passes through control
Induction coil 5 makes the temperature of metal bath 23 higher than aluminium alloy liquidus temperature 5~150 DEG C, the control cooling water of water cooled copper mould 25
Water-carrying capacity is 0.1~5L/min, closes isolating valve 12, opens vavuum pump 13 and continues to vacuumize the second vacuum chamber 2, opens
Inert gas valve 29 on first vacuum chamber 1 makes the pressure of the first vacuum chamber 1 persistently to being filled with inert gas in the first vacuum chamber 1
0.045-0.055MPa is maintained, the first vacuum chamber is continuously in inert gas shielding atmosphere, while causing the first vacuum chamber 1
The 0.045-0.055MPa pressure differential between the second vacuum chamber 2, then starts draw-gear 21, makes draw bar 20 and continuous casting billet
26 move horizontally to the direction away from insulation crucible 4, and metal bath 23 rapidly cools to form ingot casting when entering water cooled copper mould 25；
After ingot casting is contacted with continuous casting billet 26, draw bar 20 drives continuous casting billet 26 and ingot casting level to be moved to the direction away from insulation crucible 4,
The movement velocity of draw bar 20 and ingot casting is 0.5~50cm/min；The length of ingot casting is reached after requirement, stops draw-gear 21,
By the electric current zero in intermediate frequency electromagnetic induction coil 7, the inert gas valve 29 closed on the first vacuum chamber 1 closes vavuum pump 13,
When in-furnace temperature is reached below 100 DEG C, discharge stomata 14 is opened to release the vacuum state of vacuum chamber, makes vacuum room pressure
Normal atmosphere (An) is returned to, it is that can be taken off sample then to open door for vacuum chamber.
In the molten alloy step, while alloy raw material is put into smelting furnace 3, trace alloying element is put into benefit
In feed bin 15, melting alloy raw to a certain degree when, the trace alloying element is filled into by melting by feed supplement swing arm 16
In stove.
Beneficial effects of the present invention：
(1) add the method for continuously casting integration using melting, make melting, cast and continuously casting process in vacuum
Completed under state.
(2) using the catharsis of ultrasound, the heterogeneous forming core of metal can be suppressed, control crystal phase growth eliminates cluster so that
Composition is uniform.
(3) by setting intermediate frequency electromagnetic induction coil outside crystallizer, using the stirring of the horizontal direction in intermediate frequency magnetic field
Power produces stirring heat, effectively reduces the thickness of initial solidification shell, improves the thermograde at liquid/solid interface in melt, can also profit
With the support force of the vertical direction in intermediate frequency magnetic field, reduce the contact between melt and crystallizer, be conducive to obtaining good casting
Base.
(4) complete under vacuo, it is to avoid high temperature alloy or the melt of active alloy are contacted with the active gases in air
Chemically react, forming compound and being rolled into melt turns into the particle of heterogeneous forming core.There is certain gas in two vacuum chambers
Pressure difference, by adjusting the pressure in vacuum chamber, can control metal bath forming ability, metal bath cavity filling can be good.
Brief description of the drawings
Fig. 1 is ultrasonic electromagnetism founding integrated apparatus design drawing under vacuum condition of the present invention.
Fig. 2 is ultrasonic electromagnetism composite continuous casting mechanism design drawing of the present invention.
Fig. 3 is ultrasonic electromagnetism founding integrated apparatus top view under vacuum condition of the present invention.
Fig. 4 is ultrasonic electromagnetism founding integrated apparatus left view under vacuum condition of the present invention.
In figure：1 first vacuum chamber；2 second vacuum chambers；3 smelting furnaces；4 insulation crucibles；5 induction coils；6 crystallizers；In 7
Frequency electromagnetic induction coil；8 vacuum-control(led) systems；9 feed supplementing devices；10 ultrasonic processing apparatus；11 drawing devices；12 isolating valves；13
Vavuum pump；14 discharge stomatas；15 feed supplement storehouses；16 feed supplement swing arms；17 seal bellows；18 ultrasonic generators；19 ultrasonic amplitude transformers；
20 draw bars；21 draw-gears；22 first thermocouples；23 metal baths；24 graphite casting moulds；25 water cooled copper moulds；26 continuous casting billets；27
Smelting furnace swing arm；28 observation windows；29 inert gas valves；30 second thermocouples.
Embodiment
Below in conjunction with accompanying drawing and technical scheme, the embodiment of the present invention is further illustrated.
Fig. 1 shows a kind of device of electromagnetic/ultrasonic coupled field horizontal casting under vacuum.By draw bar 20 before molten alloy
And continuous casting billet 26 is moved to initial position, the end of continuous casting billet 26 is located in graphite casting mould 24, be then put into alloy raw material
Melting is ready for after smelting furnace 3；During melting, isolating valve 12 is first turned on, and close discharge stomata 14 and inert gas valve 29,
Then by controlling vacuum-control(led) system 8, vavuum pump 13 is opened, the first vacuum chamber 1 and the second vacuum chamber 2 are evacuated to
0.01Pa, is then shut off vavuum pump 13；Inert gas valve 29 is opened afterwards, respectively into the first vacuum chamber 1 and the second vacuum chamber 2
Argon gas is filled with to 0.05MPa, it is protective gas atmosphere to make in the first vacuum chamber 1 and the second vacuum chamber 2, closes inert gas valve
29, the induction coil 5 outside smelting furnace 3 is then turned on, power output 4KW, fast melting alloy raw material to complete thawing, shape is controlled
Into metal bath 23, the temperature of metal bath 23 is measured by the first thermocouple 22, by controlling induction coil 5 to make metal bath
23 temperature is 1100 DEG C, higher than aluminium alloy liquidus temperature 50 DEG C；The induction coil 5 outside insulation crucible 4 is opened, output work is controlled
Rate 11KW, preheats to insulation crucible 4, reaches 1080 DEG C of temperature；By manual rotation smelting furnace swing arm 27 by the melting
Stove 3 is tilted, and metal bath 23 is poured into insulation crucible 4；Induction coil 5 is controlled, the metal into the insulation crucible 4 melts
The additional heat of body 23 simultaneously makes melt temperature uniform；Start ultrasonic processing apparatus, ultrasonic wave is introduced by ultrasonic amplitude transformer 19 and protected
In metal bath 23 in warm crucible 4, the frequency of ultrasonic wave is 40kHz, and power is 3kW, and sonication treatment time is 5min, is suppressed
The generation of heterogeneous forming core；Meanwhile, alternating current is passed through to intermediate frequency electromagnetic induction coil 7, alternating magnetic field, intermediate frequency electromagnetic sensing is produced
The frequency of electric current is 6kHz in coil, and current strength is that the magnetic induction intensity in 1000A, crystallizer is 0.05T, intermediate frequency magnetic field institute
The power of horizontal direction is produced to 23 stirring actions of metal bath in insulation crucible 4, while certain heat is produced, intermediate frequency magnetic field
The power of the vertical direction of generation provides support force for the continuous casting billet 26 and ingot casting in crystallizer 6；Measured by the second thermocouple 30
The temperature of metal bath 23 in graphite casting mould 24, by controlling induction coil 5 temperature of metal bath 23 is reached 1100 DEG C, than
Aluminium alloy liquidus temperature is high 50 DEG C, and the water-carrying capacity for controlling the cooling water of water cooled copper mould 25 is 3L/min, closes isolating valve 12, opens true
Empty pump 13 continues to vacuumize the second vacuum chamber 2, and the inert gas valve 29 opened on the first vacuum chamber 1 is persistently true to first
Inert gas is filled with empty room 1, the pressure of the first vacuum chamber 1 is maintained 0.05MPa and is continuously in inert gas shielding atmosphere,
The pressure differential of 0.05MPa between the first vacuum chamber 1 and the second vacuum chamber 2 is caused simultaneously, is then started draw-gear 21, is made traction
Bar 20 and continuous casting billet 26 are moved horizontally to the direction away from insulation crucible 4, and metal bath 23 is quick when entering water cooled copper mould 25
It is cooled into ingot casting；After ingot casting is contacted with continuous casting billet 26, draw bar 20 drives continuous casting billet 26 and ingot casting level to away from insulation earthenware
The movement velocity of the direction movement of crucible 4, draw bar 20 and ingot casting is 4mm/s, to draw the static 2s of 5s loop cycle, implements to connect
Cast throwing；The length of ingot casting is reached after requirement, stops draw-gear 21, and the electric current in intermediate frequency electromagnetic induction coil 7 is zeroed, and is closed
The inert gas valve 29 closed on the first vacuum chamber 1, closes vavuum pump 13, when in-furnace temperature is reached below 100 DEG C, opens discharge
Stomata 14 makes vacuum room pressure return to normal atmosphere (An), then opens door for vacuum chamber to release the vacuum state of vacuum chamber
It can be taken off sample.
Claims (3)
1. melting adds sound magnetic coupling continuously casting integrated apparatus under a kind of vacuum condition, it is characterised in that described device bag
Include the first vacuum chamber, the second vacuum chamber, vacuum-control(led) system, feed supplementing device, ultrasonic processing apparatus and drawing device；
Sealing dividing plate is set between the first vacuum chamber and the second vacuum chamber, and sealing dividing plate is used for through the logical of draw bar provided with one
Hole；
Laid in the first described vacuum chamber smelting furnace, insulation crucible, induction coil, crystallizer, intermediate frequency electromagnetic induction coil,
Seal bellows, the first thermocouple, metal bath, smelting furnace swing arm and the second thermocouple；Smelting furnace is higher than insulation crucible arrangement,
Smelting furnace swing arm controls smelting furnace that metal bath therein is poured into insulation crucible；
One end of smelting furnace swing arm is fixed on the side wall of the first vacuum chamber by sealed bearings and stretched out outside the first vacuum room, another
End is connected with smelting furnace, for fixing and toppling over smelting furnace；Insulation crucible is fixed in the first vacuum chamber by saddle；First heat
Galvanic couple is positioned in smelting furnace, and is stretched into metal bath, the temperature for measuring metal bath；Induction coil be respectively coated by
The circumference of smelting furnace and insulation crucible, the temperature for regulating and controlling metal bath in smelting furnace and insulation crucible；
Crystallizer includes graphite casting mould and water cooled copper mould, for frozen metal melt；One end of graphite casting mould and water cooled copper mould
One end is connected, i.e., the two is coaxially connected and communicates；The other end of graphite casting mould is communicated with insulation crucible, the metal in insulation crucible
Melt forms ingot casting in water cooled copper mould, and ingot casting pulls out water cooled copper mould by draw bar；Graphite casting mould circumferentially has intermediate frequency
Electromagnetic induction coil, for providing support force for the continuous casting billet and ingot casting in crystallizer, and is the metal bath in insulation crucible
Mixing power；Second thermocouple is positioned on the wall of graphite casting mould side, for measuring graphite casting mould temperature；
Feed supplementing device includes feed supplement storehouse and feed supplement swing arm, and feed supplement storehouse is hermetic fixed on the upper surface of the first vacuum chamber, is located at
Directly over smelting furnace, for storing and being added into smelting furnace trace alloying element；Feed supplement swing arm is located at feed supplement storehouse and smelting furnace
Between, control to add the amount of trace alloying element in smelting furnace by handle end；
Ultrasonic processing apparatus is hermetic fixed on the top of the first vacuum chamber by seal bellows, positioned at insulation crucible just on
Side, the ultrasonic amplitude transformer of ultrasonic processing apparatus is stretched into inside insulation crucible, suppresses the generation of heterogeneous forming core；
Isolating valve is set in described the second vacuum chamber, and isolating valve is arranged on sealing dividing plate, for control the first vacuum chamber and
Pressure differential between second vacuum chamber；
Drawing device includes draw bar, draw-gear and continuous casting billet, and draw-gear is arranged at the outside of the second vacuum chamber；Continuous casting billet
The end of draw bar is connected to, it is overall to be moved horizontally under draw-gear draw in water cooled copper mould, and to be slidingly sealed
State by strand from crystallizer pull out；
Vacuum-control(led) system includes vavuum pump and discharge stomata, and vavuum pump is hermetic fixed on the outside of the second vacuum chamber；The
The upper surface of one vacuum chamber and the second vacuum chamber respectively sets a discharge stomata and an inert gas valve；
Observation window is arranged at the first vacuum chamber upper surface, the molten state for observing metal bath；
Described through hole, the internal diameter of graphite casting mould, the cross section of the internal diameter of water cooled copper mould and draw bar shape it is identical with size,
When ensureing draw bar relative to being moved with hole, sealing state is kept.
2. melting adds sound magnetic coupling continuously casting integral method under a kind of vacuum condition, it is characterised in that described method bag
Include following steps：
(1) molten alloy：Before molten alloy, draw bar and continuous casting billet are placed in initial position, the end of continuous casting billet is located at graphite
In casting mold, alloy is then put into smelting furnace；During melting, isolating valve is first turned on, and close discharge stomata and inert gas valve,
Then by controlling vacuum-control(led) system, vavuum pump is opened, by the first vacuum chamber and the second vacuum chamber to 0.01-
0.05Pa, closes vavuum pump；Inert gas valve is opened, inert gas is filled with extremely into the first vacuum chamber and the second vacuum chamber respectively
0.045-0.055MPa, makes to be protective gas atmosphere in the first vacuum chamber and the second vacuum chamber, closes inert gas valve, Ran Houkai
The induction coil outside smelting furnace is opened, fast melting alloy raw material forms metal bath to complete thawing, surveyed by the first thermocouple
The temperature of metal bath is measured, controls the temperature of metal bath higher than aluminium alloy liquidus temperature 5~50 DEG C；
(2) pour into a mould and be incubated：The induction coil outside insulation crucible is opened, insulation crucible is preheated；It is molten by manual rotation
Furnace swing arm tilts smelting furnace, and metal bath is poured into insulation crucible；Induction coil is controlled, the gold into insulation crucible
Category melt additional heat simultaneously makes melt temperature uniform；
(3) ultrasound and magnetic field are applied：Start ultrasonic processing apparatus, introduced ultrasonic wave in insulation crucible by ultrasonic amplitude transformer
In metal bath, the frequency of ultrasonic wave is 20kHz~80kHz, and power is 0.1~5kW, and sonication treatment time is 1~60min,
Suppress the generation of heterogeneous forming core；Meanwhile, alternating current is passed through to intermediate frequency electromagnetic induction coil, alternating magnetic field, intermediate frequency electromagnetic is produced
The frequency of electric current is 300Hz~10kHz in induction coil, and current strength is that the magnetic induction intensity in 10~4000A, crystallizer is
0.005~0.1T, the power of horizontal direction produced by intermediate frequency magnetic field plays stirring action to the metal bath in insulation crucible, produces simultaneously
Raw certain heat, the power for the vertical direction that intermediate frequency magnetic field is produced provides support force for the continuous casting billet and ingot casting in crystallizer；
(4) continuously casting：By the temperature of metal bath in the second thermocouple measurement graphite casting mould, by controlling induction coil to make
The temperature of metal bath is higher than aluminium alloy liquidus temperature 5~150 DEG C, and the water-carrying capacity for controlling water cooled copper mould cooling water is 0.1~5L/
Min, closes isolating valve, opens vavuum pump and continues to vacuumize the second vacuum chamber, opens the indifferent gas on the first vacuum chamber
Body valve persistently to being filled with inert gas in the first vacuum chamber, makes the first pressure in vacuum tank maintain 0.045-0.055MPa, makes
One vacuum chamber is continuously in inert gas shielding atmosphere, while causing 0.045- between the first vacuum chamber and the second vacuum chamber
0.055MPa pressure differential, then starts draw-gear, draw bar and continuous casting billet is moved to the direction level away from insulation crucible
Dynamic, metal bath rapidly cools to form ingot casting when entering water cooled copper mould；After ingot casting is contacted with continuous casting billet, draw bar drives continuous casting
Base and ingot casting level are moved to the direction away from insulation crucible, and the movement velocity of draw bar and ingot casting is 0.5~50cm/min；Casting
The length of ingot is reached after requirement, stops draw-gear, and the electric current in intermediate frequency electromagnetic induction coil is zeroed, and closes the first vacuum chamber
On inert gas valve, close vavuum pump, when in-furnace temperature is reached less than 100 DEG C, open and discharge stomata to release vacuum chamber
Vacuum state, vacuum room pressure is returned to normal atmosphere (An), then open door for vacuum chamber be that can be taken off sample.
3. melting adds sound magnetic coupling continuously casting integral method under a kind of vacuum condition according to claim 2, it is special
Levy and be, in the molten alloy step, while alloy raw material is put into smelting furnace, trace alloying element is put into feed supplement
In storehouse, melting alloy raw to a certain degree when, the trace alloying element is filled into smelting furnace by feed supplement swing arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710394134.XA CN107030266A (en) | 2017-06-01 | 2017-06-01 | Melting adds sound magnetic coupling continuously casting integrated apparatus and method under a kind of vacuum condition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710394134.XA CN107030266A (en) | 2017-06-01 | 2017-06-01 | Melting adds sound magnetic coupling continuously casting integrated apparatus and method under a kind of vacuum condition |
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| CN107447163A (en) * | 2017-09-08 | 2017-12-08 | 大连理工大学 | The apparatus and method that industry casts live ultrasonication molten iron |
| CN107537988A (en) * | 2017-08-22 | 2018-01-05 | 上海电缆研究所有限公司 | Electric wire long length high purity copper rod of metal alloy base horizontally continuously casting device and casting technique |
| CN107790658A (en) * | 2017-10-24 | 2018-03-13 | 江西理工大学 | One Albatra metal vacuum continuous smelting casting method |
| CN108546831A (en) * | 2018-05-25 | 2018-09-18 | 南京尚吉增材制造研究院有限公司 | Titanium and titanium alloy short route preparation facilities and method |
| CN108842091A (en) * | 2018-07-02 | 2018-11-20 | 江西省科学院应用物理研究所 | A method of utilizing magnetic field/ultrasonic field coupling preparation Cu-Cr alloy |
| CN110284030A (en) * | 2019-08-06 | 2019-09-27 | 中南大学 | A kind of ultrasonic wave assisted casting device and the method for manufacturing aluminium lithium alloy |
| CN110508764A (en) * | 2019-09-20 | 2019-11-29 | 哈尔滨工业大学 | A kind of the D.C.casting equipment and its D.C.casting method of equal outer diameters thin wall alloy casting travelling-magnetic-field/ultrasonic synergistic optimization |
| CN112710152A (en) * | 2020-12-25 | 2021-04-27 | 大连理工大学 | Ultrasonic-assisted copper alloy vacuum smelting furnace |
| CN114226663A (en) * | 2020-09-09 | 2022-03-25 | 上海交通大学 | Casting device and casting method |
| CN114833329A (en) * | 2022-05-19 | 2022-08-02 | 中南大学 | High-entropy alloy multi-section mixed casting device and method thereof |
| CN115265189A (en) * | 2022-03-05 | 2022-11-01 | 哈尔滨工业大学 | Magnetic control arc variable temperature gradient smelting equipment and method |
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| CN117380916A (en) * | 2023-12-08 | 2024-01-12 | 成都利华强磁浮连铸科技有限责任公司 | Magnetic suspension continuous casting system and magnetic suspension continuous casting method |
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| CN107537988A (en) * | 2017-08-22 | 2018-01-05 | 上海电缆研究所有限公司 | Electric wire long length high purity copper rod of metal alloy base horizontally continuously casting device and casting technique |
| CN107447163A (en) * | 2017-09-08 | 2017-12-08 | 大连理工大学 | The apparatus and method that industry casts live ultrasonication molten iron |
| CN107790658B (en) * | 2017-10-24 | 2019-06-18 | 江西理工大学 | One Albatra metal vacuum continuous smelting casting method |
| CN107790658A (en) * | 2017-10-24 | 2018-03-13 | 江西理工大学 | One Albatra metal vacuum continuous smelting casting method |
| CN111676380A (en) * | 2018-05-25 | 2020-09-18 | 南京尚吉增材制造研究院有限公司 | Short-process preparation device for titanium and titanium alloy |
| CN108546831B (en) * | 2018-05-25 | 2020-07-24 | 南京尚吉增材制造研究院有限公司 | Short-process preparation device and method for titanium and titanium alloy |
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| CN111676380B (en) * | 2018-05-25 | 2021-06-25 | 南京尚吉增材制造研究院有限公司 | Short-process preparation device for titanium and titanium alloy |
| CN108842091A (en) * | 2018-07-02 | 2018-11-20 | 江西省科学院应用物理研究所 | A method of utilizing magnetic field/ultrasonic field coupling preparation Cu-Cr alloy |
| CN110284030A (en) * | 2019-08-06 | 2019-09-27 | 中南大学 | A kind of ultrasonic wave assisted casting device and the method for manufacturing aluminium lithium alloy |
| CN110284030B (en) * | 2019-08-06 | 2020-08-04 | 中南大学 | Ultrasonic-assisted casting device and method for manufacturing aluminum-lithium alloy |
| CN110508764A (en) * | 2019-09-20 | 2019-11-29 | 哈尔滨工业大学 | A kind of the D.C.casting equipment and its D.C.casting method of equal outer diameters thin wall alloy casting travelling-magnetic-field/ultrasonic synergistic optimization |
| CN114226663A (en) * | 2020-09-09 | 2022-03-25 | 上海交通大学 | Casting device and casting method |
| CN114226663B (en) * | 2020-09-09 | 2023-01-20 | 上海交通大学 | Casting device and casting method |
| CN112710152B (en) * | 2020-12-25 | 2022-01-25 | 大连理工大学 | Ultrasonic-assisted copper alloy vacuum smelting furnace |
| CN112710152A (en) * | 2020-12-25 | 2021-04-27 | 大连理工大学 | Ultrasonic-assisted copper alloy vacuum smelting furnace |
| CN115265189A (en) * | 2022-03-05 | 2022-11-01 | 哈尔滨工业大学 | Magnetic control arc variable temperature gradient smelting equipment and method |
| CN114833329A (en) * | 2022-05-19 | 2022-08-02 | 中南大学 | High-entropy alloy multi-section mixed casting device and method thereof |
| CN114833329B (en) * | 2022-05-19 | 2023-07-04 | 中南大学 | High-entropy alloy multi-section mixed casting device and method thereof |
| CN115418510A (en) * | 2022-09-05 | 2022-12-02 | 大连理工大学 | Device and method for preparing copper alloy plate easy to oxidize in vacuum |
| CN115418510B (en) * | 2022-09-05 | 2023-09-19 | 大连理工大学 | Device and method for preparing copper alloy plate easy to oxidize in vacuum |
| CN117380916A (en) * | 2023-12-08 | 2024-01-12 | 成都利华强磁浮连铸科技有限责任公司 | Magnetic suspension continuous casting system and magnetic suspension continuous casting method |
| CN117380916B (en) * | 2023-12-08 | 2024-02-23 | 成都利华强磁浮连铸科技有限责任公司 | Magnetic suspension continuous casting system and magnetic suspension continuous casting method |
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