CN208680474U - A kind of device of electromagnetic energy crystal grain refinement - Google Patents
A kind of device of electromagnetic energy crystal grain refinement Download PDFInfo
- Publication number
- CN208680474U CN208680474U CN201820338168.7U CN201820338168U CN208680474U CN 208680474 U CN208680474 U CN 208680474U CN 201820338168 U CN201820338168 U CN 201820338168U CN 208680474 U CN208680474 U CN 208680474U
- Authority
- CN
- China
- Prior art keywords
- electromagnetic energy
- lifting support
- hoistable platform
- crystal grain
- coil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model discloses a kind of device of electromagnetic energy crystal grain refinement.The device is applied in semi-continuous casting equipment, and the calutron includes: silicon steel laminations iron core, hoistable platform, lifting support, coil；The coil is wrapped on the excircle of the silicon steel laminations iron core；Circular hole is provided on the hoistable platform, the silicon steel laminations iron core passes through the circular hole and is socketed in the circular hole of the hoistable platform；The top of the lifting support is connected to the lower surface of the hoistable platform, and the bottom end of the lifting support is detachably connected with the cast the slot, and the lifting support supports the hoistable platform, and the lifting support is used to adjust the height of the hoistable platform.Electromagnetic energy processing is carried out to the melt by the calutron, so that melt obtains electromagnetic energy and transition occurs, the degree of melt crystal grain refinement is improved, improves the mechanical property and deformation performance of ingot casting.
Description
Technical field
The utility model relates to semi-continuous casting fields, more particularly to a kind of device of electromagnetic energy crystal grain refinement.
Background technique
Ingot casting microscopic structure using the production of multithread casting method is fine and close, but crystallite dimension is coarse, nonuniform organization, sternly
Ghost image rings the mechanical property and deformation performance of semicontinuous ingot casting.The solidified structure of metal largely determines its machinery
Performance, and the mechanical property and deformation performance of ingot casting can be effectively improved by refining ingot casting crystal grain.
In order to effectively improve the mechanical property and deformation performance of ingot casting, in the prior art by improving in multithread casting process
Fining agent, cooling velocity and casting speed crystal grain is refined, addition fining agent pollution will cause to melt, in melt
It is easier to aggregation formation to be mingled with, influences to purify, and cooling velocity and casting speed are small to the degree of refinement of crystal grain, can not effectively improve
The mechanical property and deformation performance of ingot casting.
Electromagnetic Treatment is carried out to melt using calutron in the prior art, is realized by applying electromagnetic force to melt
The mechanical property and deformation performance of ingot casting, but small to the degree of refinement of crystal grain, can not effectively improve ingot casting mechanical property and
Deformation performance.
Utility model content
The purpose of the utility model is to provide a kind of mechanical property that can be improved ingot casting and the electromagnetic energy of deformation performance are brilliant
The device of grain refinement.
To achieve the above object, the utility model provides following scheme:
A kind of calutron of electromagnetic energy crystal grain refinement, the calutron is applied in semi-continuous casting equipment, described
Calutron includes:
Silicon steel laminations iron core, hoistable platform, lifting support, coil；
The coil is wrapped on the excircle of the silicon steel laminations iron core；
Circular hole is provided on the hoistable platform, the silicon steel laminations iron core is socketed in the lifting across the circular hole and puts down
In the circular hole of platform；
The top of the lifting support is connected to the lower surface of the hoistable platform, the bottom end of the lifting support with it is described
Cast the slot is detachably connected, and the lifting support supports the hoistable platform, and the lifting support is for adjusting the lifting
The height of platform.
Optionally, the calutron further include: power supply, the power supply are connect with the coil, and the coil is made to be powered.
Optionally, the calutron further include: fixing end, the fixing end are connect with the bottom end of the lifting support,
The bottom end of the lifting support is detachably connected by the fixing end and the cast the slot.
Optionally, the coil is hollow water-cooled copper coil.
According to specific embodiment provided by the utility model, the utility model discloses following technical effects: this is practical new
Type discloses a kind of calutron of electromagnetic energy crystal grain refinement.The melt is carried out at electromagnetic energy by the calutron
Reason so that melt obtain electromagnetic energy occur transition, improve the degree of melt crystal grain refinement, improve ingot casting mechanical property and
Deformation performance.
Since the degree of refinement of melt crystal grain improves, so, microcosmic cracking severity is lower, and the surface quality of ingot casting is good.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only the utility model
Some embodiments for those of ordinary skill in the art without any creative labor, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is that a kind of calutron of electromagnetic energy crystal grain refinement provided by the utility model is fixed on the structure on sow (channel)
Schematic diagram；
Fig. 2 is that a kind of calutron of electromagnetic energy crystal grain refinement provided by the utility model is fixed on the signal on diversion channel
Figure；
Fig. 3 is that a kind of calutron of electromagnetic energy crystal grain refinement provided by the utility model is fixed on showing on casting riser
It is intended to；
Fig. 4 is the waveform diagram of the Pulse High Voltage in a kind of method of electromagnetic energy crystal grain refinement provided by the utility model；
Fig. 5 is the radially different position of the ingot casting prepared in a kind of method of electromagnetic energy crystal grain refinement provided by the utility model
Set the average-size figure of the crystal grain at place；
Fig. 6 is that the ingot casting prepared in a kind of method of electromagnetic energy crystal grain refinement provided by the utility model is not added magnetic field and adds
Treated in magnetic field tensile strength, the contraction percentage of area and section elongation comparison diagram；
Fig. 7 is under the casting riser in a kind of method of electromagnetic energy crystal grain refinement provided by the utility model plus magnetic field and not
Add the temperature profile of magnetic field melt；
Fig. 8 is that the ingot casting prepared in a kind of method of electromagnetic energy crystal grain refinement provided by the utility model applies different electric currents
Under flow through the instantaneous electromagnetic energy situation of melt in casting slot；
Fig. 9 is peak point current 100A in a kind of method of electromagnetic energy crystal grain refinement provided by the utility model, pulse frequency
The different current duty cycles of rate 20Hz and the Magnetic Induction Density Distribution figure of chute liquid level；
Figure 10 is that the ingot casting in a kind of method of electromagnetic energy crystal grain refinement provided by the utility model does not apply magnetic field radially
The grain structure figure of processing；
Figure 11 be ingot casting in a kind of method of electromagnetic energy crystal grain refinement provided by the utility model radially apply 100A,
20%, the grain structure figure of the magnetic field 20Hz processing；
Figure 12 be ingot casting in a kind of method of electromagnetic energy crystal grain refinement provided by the utility model radially apply 100A,
40%, the grain structure figure of the magnetic field 20Hz processing.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
The purpose of the utility model is to provide a kind of mechanical property that can be improved ingot casting and the electromagnetic energy of deformation performance are brilliant
The device of grain refinement.
To keep the above objects, features, and advantages of the utility model more obvious and easy to understand, with reference to the accompanying drawing and have
Body embodiment is described in further detail the utility model.
A kind of structure chart of the calutron of electromagnetic energy crystal grain refinement as shown in Figure 1, the calutron are applied to half
In continuous casting equipment, the calutron includes:
Silicon steel laminations iron core 1, hoistable platform 2, coil 3, lifting support 5.
The coil 3 is wrapped on the excircle of the silicon steel laminations iron core 1, and the coil 3, which can also be wound, to be built in
On the silicon steel laminations iron core 1, the coil 3 is hollow water-cooled copper coil, 3 mutually insulated of coil.
Circular hole is provided on the hoistable platform 2, the silicon steel laminations iron core 1 passes through the circular hole and is socketed in the lifting
In the circular hole of platform 2.
The top of the lifting support 5 is connected to the lower surface of the hoistable platform 2, the bottom end of the lifting support 5 with
The cast the slot 4 is detachably connected, and the lifting support 5 supports the hoistable platform 2, and the lifting support 5 is for adjusting
The height of the hoistable platform 2.
The calutron further include: power supply, the power supply are connect with the coil 3, and the coil is made to be powered, and are applied not
Same Pulse High Voltage, the waveform diagram of the Pulse High Voltage as shown in Figure 4, the parameter of the Pulse High Voltage are as follows: pulse
Electric current is 0~500A, and pulse current duty ratio 0~100%, pulse frequency is 0~70Hz, and the power supply is pulse power cabinet,
The coil 3 is connect with the pulse power cabinet.
Surface Pulse High Voltage magnetic field generates biggish changes of magnetic field, high instantaneous energy can be made to penetrate into melt, to nascent crystalline substance
The formation of core and nucleation rate be provided provide advantageous condition, nucleation rate not only greatly improved, and promote crystal growth by
Column crystal changes equiax crystal growth pattern, the available significant refinement of crystal grain, and crystallite dimension more refines in ingot casting
Even distribution obtains the ingot casting of high quality, has the advantages that simple process, low in cost, easy to operate.
Fig. 1 is that a kind of calutron of electromagnetic energy crystal grain refinement provided by the utility model is fixed on the structure on sow (channel)
Schematic diagram, the calutron as shown in Figure 1 further include: fixing end 6, the bottom of the fixing end 6 and the lifting support 5
End connection, the bottom end of the lifting support 5 is detachably connected by the fixing end 6 and the cast the slot 4.
To achieve the goals above, the utility model additionally provides following scheme:
A kind of method of electromagnetic energy crystal grain refinement, the method are applied to a kind of electricity of electromagnetic energy crystal grain refinement described above
Magnetic device, the method specifically include:
The calutron is fixed on to the top of the chute of casting disk, according to the needs of actual production, Fig. 2 is that this is practical
A kind of calutron of electromagnetic energy crystal grain refinement of novel offer is fixed on the schematic diagram on diversion channel；Fig. 3 is the utility model
A kind of calutron of the electromagnetic energy crystal grain refinement provided is fixed on the schematic diagram on casting riser, and the calutron is fixed
On different chute positions, the sow (channel) that the calutron is fixed on to the casting disk as shown in Figure 2, diversion channel and
Riser position can generate the ingot casting of grain structure tiny in various degree, aluminium alloy stock is heated to melting, the electromagnetism
It is 650 DEG C~750 DEG C that device, which acts on the melt temperature at chute position,.
Adjusting the lifting support makes the bottom end of the silicon steel laminations iron core and melt liquid level distance 10mm, described
Lifting support makes the bottom end of the silicon steel laminations iron core and 0~50mm of distance range of melt liquid level, by adjusting electromagnetic energy
Height of the generating device apart from melt liquid level applies a kind of surface Pulse High Voltage to molten aluminium alloy during into flow-conveying groove
Electromagnetic energy effect, the melt for passing through chute 4 carries out multithread semi-continuous casting under the action of electromagnetic energy, until its melt is complete
It has been cast that, obtain the aluminium alloy cast ingot of even tissue refinement.
After metal is melted in smelting furnace, melt is poured into the chute.
The coil is passed through Pulse High Voltage, electromagnetic energy processing is carried out to the melt, obtains electromagnetism melt.
The electromagnetism melt successively by crystallization, cooling treatment, obtains the ingot casting of crystal grain refinement.
Ingot casting is chosen into intermediate altitude, and carries out radially sample preparation, respectively along radius in center position, half
30mm × 10mm × 30mm sample is cut at place, edge respectively, obtains such as Figure 10-Figure 12 by microscope after ground and corrosion
Shown in microcosmic grain structure, compared to surface Pulse High Voltage magnetic field electromagnetic energy processing aluminium alloy cast ingot crystallite dimension than not plus magnetic
The crystallite dimension of field processing is much smaller, the average-size of the crystal grain of the radially different position of aluminium alloy cast ingot as shown in Figure 5, crystal grain
Average-size decline 15%~25%, and the uniformity of crystal grain is significantly improved, and ingot surface quality is obviously preferable, such as schemes
As-cast aluminum alloy shown in 6 be not added magnetic field with plus treated in magnetic field tensile strength, the contraction percentage of area and section elongation pair
Than adding magnetic field treated and improve the tensile strength of as-cast aluminum alloy, the elongation of the contraction percentage of area and section.
Add magnetic field under casting riser in a kind of method of electromagnetic energy crystal grain refinement as shown in Figure 7 and magnetic field melt is not added
Temperature profile, add temperature at magnetic field higher than temperature at magnetic field position is not added.
Ingot casting as shown in Figure 8 applies the electromagnetic energy situation for flowing through that melt is instantaneous in casting slot under different electric currents, passes through adjusting
The size control of electric current applies the size of electromagnetic energy.
The different current duty cycles that pulse current as shown in Figure 9 is 100A, pulse frequency is 20Hz correspond to chute liquid
The Magnetic Induction Density Distribution situation in face, the magnetic induction intensity of the duty cycle adjustment chute liquid level by adjusting electric current.
70A4 aluminium alloy is melted and refined in smelting furnace, keeps the temperature 30 minutes at 750 DEG C, guarantees that alloy melt temperature is equal
It is even, wait cast, multithread semi-continuous casting.Strobe pulse rectangular wave magnetic field parameter are as follows: pulse current 100A, pulse frequency are
40Hz, current duty cycle 20%, the multithread semi-continuous casting speed to match is 80mm/min, by surface rectangle wave electromagnetic energy
Generating device is fixed on right above the riser of chute (4), and silicon steel laminations iron core (1) and copper coil (3) and hoistable platform (2) is solid
It sets, modulates surface rectangle wave electromagnetic energy generating device hoistable platform (2), so that the silicon steel laminations iron core (1) of its bottom is away from molten
Liquid level 20mm, starting pre-sets the pulse power cabinet of parameter later, upper to casting pan in multithread semi-continuous casting
The melt progress surface pulsed magnetic field electromagnetic energy processing of slot (4) is until melt fully flows into, the closing pulse power complete to casting
Cabinet.Before casting, chute is sufficiently toasted.When casting, while multithread semicontinuous casting machine and coil device water-cooling system are opened,
It opens casting stem bar to start to be poured, while opening the dummy ingot of surface rectangle wave electromagnetic energy generating device and multithread semicontinuous casting machine
Device stablizes the alloy melt liquid level in chute.After casting is complete, casting stem bar is closed
With pulsed magnetic field generating device, it is prepared into the big ingot casting of fine grain of 7A04 aluminium alloy.
By 7A04 aluminium alloy slab material after Medium frequency induction stove heating, fusing, after 800 DEG C of heat preservation 300s, preheating is poured into
Into 700 DEG C of copper crucibles.Starting impulse power supply, the electromagnetic energy generated by surface Pulse High Voltage magnetic field generator is to melt
Contactless processing is carried out, so that melt static slow solidification under different magnetic field parameter, and it is cooling to carry out ingot casting center
The measurement of curve.Strobe pulse rectangular wave magnetic field parameter are as follows: frequency 20Hz, peak point current 100A, current duty cycle are chosen respectively
When 20% and 40%, temperature to be solidified drops to 350 DEG C hereinafter, closing pulse power parameters, can prepare Φ 60mm × 150mm fine grain
Ingot casting, and to its solidified structure comparative study, different current duty cycles as is illustrated by figs. 11 and 12 are to aluminum alloy solidification tissue
The effect of refinement is cast as a result, it has been found that different current duty cycles have effect to aluminum alloy solidification structure refinement with magnetic field is not applied
Ingot solidified structure has dropped 23.8% and 40.6% compared to average grain size respectively.
The method also includes: after the coil is passed through Pulse High Voltage, lead in the hollow water-cooled copper coil
Enter cooling water.
The utility model has the beneficial effects that
(1) the utility model can uniform refining aluminum alloy solidified structure, degree of grain refinement can reduce by 15%~
40%, different degrees of large-sized fine crystal ingots can be prepared, the surface quality of ingot casting is significantly improved；
(2) the utility model can prepare the aluminium alloy fine crystal ingots of different series；
(3) pollution-free, the non-contact aluminium alloy melt in surface Pulse High Voltage magnetic field of the utility model will not be to aluminium alloy
Melt itself generates any pollution, will not generate pollution to environment；
(4) the utility model uses low frequency, and equipment is simple, safe operation, can directly install in the original equipment of factory
It uses, and save the cost and investment.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
Specific case used herein is expounded the principles of the present invention and embodiment, above embodiments
Explanation be merely used to help understand the method and its core concept of the utility model；Meanwhile for the general technology of this field
Personnel, based on the idea of the present invention, there will be changes in the specific implementation manner and application range.In conclusion
The content of the present specification should not be construed as a limitation of the present invention.
Claims (4)
1. a kind of device of electromagnetic energy crystal grain refinement, which is characterized in that described device is applied in semi-continuous casting equipment, described
Device includes:
Silicon steel laminations iron core, hoistable platform, lifting support, coil；
The coil is wrapped on the excircle of the silicon steel laminations iron core；
Circular hole is provided on the hoistable platform, the silicon steel laminations iron core passes through the circular hole and is socketed in the hoistable platform
In circular hole；
The top of the lifting support is connected to the lower surface of the hoistable platform, the bottom end of the lifting support and the casting
The cast the slot of equipment is detachably connected, and the lifting support supports the hoistable platform, and the lifting support is for adjusting institute
State the height of hoistable platform.
2. a kind of device of electromagnetic energy crystal grain refinement according to claim 1, which is characterized in that described device further include:
Power supply, the power supply are connect with the coil, and the coil is made to be powered.
3. a kind of device of electromagnetic energy crystal grain refinement according to claim 1, which is characterized in that described device further include:
Fixing end, the fixing end are connect with the bottom end of the lifting support, the bottom end of the lifting support by the fixing end with
The cast the slot is detachably connected.
4. a kind of device of electromagnetic energy crystal grain refinement according to claim 1, which is characterized in that the coil is hollow water
Cold copper coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820338168.7U CN208680474U (en) | 2018-03-13 | 2018-03-13 | A kind of device of electromagnetic energy crystal grain refinement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820338168.7U CN208680474U (en) | 2018-03-13 | 2018-03-13 | A kind of device of electromagnetic energy crystal grain refinement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208680474U true CN208680474U (en) | 2019-04-02 |
Family
ID=65875776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820338168.7U Active CN208680474U (en) | 2018-03-13 | 2018-03-13 | A kind of device of electromagnetic energy crystal grain refinement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208680474U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108273972A (en) * | 2018-03-13 | 2018-07-13 | 内蒙古科技大学 | A kind of device and method of electromagnetic energy crystal grain refinement |
| CN111408704A (en) * | 2020-05-27 | 2020-07-14 | 内蒙古千山重工有限公司 | Grain refining device and grain refining method for aluminum product crystallization |
-
2018
- 2018-03-13 CN CN201820338168.7U patent/CN208680474U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108273972A (en) * | 2018-03-13 | 2018-07-13 | 内蒙古科技大学 | A kind of device and method of electromagnetic energy crystal grain refinement |
| CN111408704A (en) * | 2020-05-27 | 2020-07-14 | 内蒙古千山重工有限公司 | Grain refining device and grain refining method for aluminum product crystallization |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108273972A (en) | A kind of device and method of electromagnetic energy crystal grain refinement | |
| CN100515606C (en) | Horizontal continuous light alloy casting process and apparatus with cooperation of power ultrasound wave and low frequency electromagnetic wave | |
| CN104827007B (en) | The continuous casting preparation method of large-scale uniform formation's alloy pig and magnetic control electro-slag continuous casting device | |
| CN103056344B (en) | Method for controlling electroslag melting casting by added transient magnetic field and electroslag smelting casting device | |
| CN100534669C (en) | Vertical semi-continuous light alloy ingot casting process and apparatus with cooperation of power ultrasound wave and low frequency electromagnetic wave | |
| CN104388689A (en) | Method and device for casting electromagnetic compound control electroslag remelting fine grains | |
| CN101733380B (en) | Preparation method of fine crystalline metal material under action of low-voltage pulse magnetic field | |
| CN110280746A (en) | The method that a kind of high-strength ultrasonic wave added in list source casts big specification 2XXX line aluminium alloy billet | |
| CN102179505B (en) | Method for refining metal solidification structure by using pulsed magnet field and pulse current with same frequency | |
| CN204975280U (en) | High frequency magnetic field refines device that metal solidifies tissue with pulse current in coordination | |
| CN106623832B (en) | A kind of preparation facilities and method of super large-scale aluminium alloy ingot casting | |
| CN101804446A (en) | Method and device for preparing semi-solid metal slurry by alternating magnetic field intensifying, overflowing and cooling | |
| CN203639530U (en) | Composite electroslag casting device for optimizing metal solidification structure by using steady-state magnetic field | |
| CN208680474U (en) | A kind of device of electromagnetic energy crystal grain refinement | |
| CN106925730B (en) | A kind of preparation facilities and method of big specification fine grain homogeneous aluminium alloy cast ingot | |
| CN203679244U (en) | Metal semisolid slurry preparation device | |
| CN108480580B (en) | A kind of induction coil cooperates with DC to prepare the device of aluminium alloy cast ingot with permanent magnetic stirring | |
| CN101733381A (en) | Magnetic pulse semi-continuous casting device and casting method | |
| CN108436047B (en) | Resultant field prepares the device and method of big specification fine grain homogeneous aluminium alloy cast ingot | |
| CN104439203A (en) | Magnetism-heat composite control complex precision or thin wall casting fine grain casting method and device | |
| CN103658608A (en) | Device and application for preparing metal semi-solid slurry | |
| CN111842821B (en) | Electromagnetic treatment method for melt cast by aluminum alloy flow table | |
| CN104128592B (en) | Device for refining metal solidification structure with electric current pulses | |
| CN108188366B (en) | Magnesium alloy semicontinuous casting grain refinement device and method | |
| CN204122734U (en) | A kind of device of pulse current thinning metal solidification texture |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |