CN110681836A - Electromagnetic multi-cyclone stirring casting device - Google Patents
Electromagnetic multi-cyclone stirring casting device Download PDFInfo
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- CN110681836A CN110681836A CN201911007367.5A CN201911007367A CN110681836A CN 110681836 A CN110681836 A CN 110681836A CN 201911007367 A CN201911007367 A CN 201911007367A CN 110681836 A CN110681836 A CN 110681836A
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- electromagnetic
- stirring
- crystallizer
- casting
- water tank
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- 238000003756 stirring Methods 0.000 title claims abstract description 52
- 238000005266 casting Methods 0.000 title claims abstract description 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000007788 liquid Substances 0.000 claims abstract description 10
- 230000003014 reinforcing effect Effects 0.000 claims description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 7
- 238000009714 stir casting Methods 0.000 claims 5
- 238000007711 solidification Methods 0.000 abstract description 7
- 230000008023 solidification Effects 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 5
- 238000009749 continuous casting Methods 0.000 abstract description 4
- 238000009826 distribution Methods 0.000 abstract description 4
- 238000005336 cracking Methods 0.000 abstract description 2
- 230000003111 delayed effect Effects 0.000 abstract description 2
- 239000011159 matrix material Substances 0.000 abstract description 2
- 229910052751 metal Inorganic materials 0.000 description 11
- 239000002184 metal Substances 0.000 description 11
- 239000013078 crystal Substances 0.000 description 9
- 229910045601 alloy Inorganic materials 0.000 description 6
- 239000000956 alloy Substances 0.000 description 6
- 230000033001 locomotion Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000005204 segregation Methods 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 210000001787 dendrite Anatomy 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910021652 non-ferrous alloy Inorganic materials 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Images
Classifications
-
- 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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
The invention discloses an electromagnetic multi-cyclone stirring casting device, and relates to the technical field of casting. This many whirl of electromagnetism stirring casting device, including the water tank, the internally mounted of water tank has the crystallizer, and crystallizer externally mounted has the electromagnetic means body, and the electromagnetic means body includes the dead lever, and the dead lever is provided with a plurality ofly altogether, and divide into the multiunit. The electromagnetic multi-cyclone stirring casting device can effectively adjust the stirring direction and the stirring intensity of the molten liquid by changing the direction and the intensity of a magnetic field, control the flowing form and the flowing speed of the molten liquid, homogenize the temperature distribution of the molten liquid in a crystallizer, inhibit the uneven thickness of a solidified blank shell at the initial stage, reduce delayed solidification and blank shell deformation, have obvious effect on improving the quality of a continuous casting blank, eliminate the shrinkage porosity tendency on a matrix due to grain refinement, uniform tissue distribution, reduced body shrinkage and reduced hot cracking tendency, and greatly improve the mechanical property of a casting.
Description
Technical Field
The invention relates to the technical field of casting, in particular to an electromagnetic multi-cyclone stirring casting device.
Background
With the development of continuous casting technology, the requirement of people on casting quality is continuously improved, extremely harsh conditions, especially large-size casting rods, are provided for the mechanical property of casting blanks, the content of inclusions in the casting blanks, air holes and the like, the casting blanks are widely applied to the industries such as automobile panels, household appliances, ships, aerospace and the like, uniform forming performance is required, higher requirements are provided for surface quality, the electromagnetic stirring technology becomes one of the current common methods for improving the performance of steel, aluminum and alloys thereof internationally, the electromagnetic stirring technology is more and more concerned by people, and becomes a hotspot of the electromagnetic metallurgy technology.
The existing electromagnetic stirring only has two types of modes for stirring the molten metal in the crystallizer: horizontal circulation and molten metal vibrate up and down (vertical linearity), the horizontal circulation mainly exchanges solution on the outer ring of the casting rod, the temperature and component exchange between the inside and the outside cannot be realized, the force is difficult to control, the temperature and component exchange requirements cannot be met when the force is small, the component segregation is caused by the centrifugal action when the force is too large, the radial penetration depth of a magnetic field is limited due to the fact that the vertical vibration is an axial magnetic field, the exchange with the periphery cannot be realized, particularly, the large-size casting rod cannot act on a core part, and the condition that the components and grains are uneven easily occurs in the casting rod when the two modes are adopted.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the electromagnetic multi-cyclone stirring casting device, after the device is used, the casting rod can be divided into a plurality of areas for exchange, the exchange of internal and external temperature and components is realized, the device better solves the temperature difference between the core part and the appearance on the basis of keeping the original electromagnetic stirring advantage of the crystal, and improves the uniformity of crystal grains while changing the solidification condition of the casting rod.
In order to achieve the purpose, the invention is realized by the following technical scheme: many whirl of electromagnetism stirring casting device, including the water tank, the internally mounted of water tank has the crystallizer, crystallizer externally mounted has the electromagnetic means body, the electromagnetic means body includes the dead lever, the dead lever is provided with a plurality ofly altogether, and divide into the multiunit, and the top of four dead levers of every group is fixed with the iron core assembly through the screw, the external fixed surface of iron core assembly has three enhancement salient pole, and is three the surface winding of strengthening the salient pole has electromagnetic stirring coil.
Preferably, the electromagnetic stirring coils are arranged in a plurality of groups, and each group of three electromagnetic stirring coils form a C-shaped electromagnetic inductor.
Preferably, the same material and the same number of electromagnetic stirring coils are wound on the outer surfaces of the reinforcing salient poles.
Preferably, the same material and the same number of electromagnetic stirring coils are wound on the outer surfaces of the reinforcing salient poles.
Preferably, the plurality of C-shaped electromagnetic inductors are arranged, and each C-shaped electromagnetic inductor can form a complete rotational flow magnetic field.
Preferably, the electromagnetic device body can also be arranged below the crystallizer.
The invention provides an electromagnetic multi-cyclone stirring casting device. The method has the following beneficial effects:
(1) the electromagnetic multi-cyclone stirring casting device can effectively improve the internal organization structure of a casting blank, reduce impurities, reduce longitudinal cracks on the surface of the casting blank, improve the surface quality, reduce center segregation and center porosity, basically eliminate center shrinkage cavities and cracks, greatly increase the isometric crystal rate, effectively adjust the stirring direction and the stirring strength of molten liquid by changing the direction and the strength of a magnetic field, control the flowing form and the flowing speed of the molten liquid, homogenize the temperature distribution of the molten liquid in a crystallizer, inhibit the uneven thickness of an initial solidified blank shell, reduce delayed solidification and blank shell deformation, have obvious effect on improving the quality of the continuous casting blank, eliminate shrinkage porosity tendency on a matrix due to grain refinement, uniform structure distribution, reduced body shrinkage and reduced hot cracking tendency, and greatly improve the mechanical property of a casting.
(2) This many whirl of electromagnetism stirring casting device, because the electromagnetic stirring can accelerate thermal release, change the mobile mode of fuse-element, can effectual suppression columnar crystal growth, columnar crystal and thick dendrite in having eliminated traditional casting, reduce macrosegregation and microsegregation when changing the form of precipitated phase, increase the crystal nucleus, the crystalline grain, uniform temperature, make the solidification refine the crystalline grain effect reinforcing simultaneously in great volume range, this stirs more significantly in the crystallization process, improve columnar crystal, the bridge, the pinhole, increase equiaxed crystal district, reduce ingredient segregation, it is very obvious to alleviate or eliminate the effect in the aspect of central loose and central shrinkage cavity etc..
(3) The electromagnetic multi-cyclone stirring casting device has the characteristics of non-contact, uniform distribution and the like due to electromagnetic field stirring, reduces pollution and unsafe factors, is particularly suitable for special occasions such as high temperature and the like, and has important significance in smelting alloy and high-purity metal.
(4) The electromagnetic multi-cyclone stirring casting device has the advantages that the solidification speed is accelerated, the production rate is improved, and the process period is shortened; since the solidification shrinkage is small, the dimensional accuracy of the molded article is high and the removal margin is small.
(5) The electromagnetic multi-cyclone stirring casting device has the advantages that the formed alloy range is wide: non-ferrous alloys include aluminum, magnesium, zinc, tin, copper, nickel-based alloys; iron-based alloys such as stainless steel and low alloy steel; the method can be used for manufacturing metal-based composite materials, and the metals with large density difference and small solid solubility are made into alloy by utilizing the high viscosity of the semi-solid metal, and different materials can be effectively mixed to prepare new composite materials.
(6) This many whirl of electromagnetism stirring casting device, many whirl of electromagnetism agitating unit utilization ratio is high, and power is little, compact structure, disposable investment, use cost is lower, and easy operation is convenient, and the workman easily masters, has stabilized the continuous casting operation, and the wide application is on round billet caster.
Drawings
FIG. 1 is a perspective view of an electromagnetic apparatus body of the present invention;
FIG. 2 is a diagram showing the movement pattern of the molten metal of the present invention;
FIG. 3 is a diagram showing the movement pattern of the molten metal of the present invention;
FIG. 4 is a diagram of the movement pattern of the molten metal of the present invention;
FIG. 5 is a state diagram of the present invention in use;
fig. 6 is an installation view of the electromagnetic device body of the present invention under the mold.
In the figure: 1. an iron core assembly; 2. an electromagnetic stirring coil; 3. reinforcing the salient poles; 4. fixing the rod; 5. a C-type electromagnetic inductor; 6. a crystallizer; 7. a water tank; 8. an electromagnetic device body.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
Example 1: referring to fig. 1, the present invention provides a technical solution: the electromagnetic multi-cyclone stirring casting device comprises a water tank 7, wherein a crystallizer 6 is arranged inside the water tank 7, an electromagnetic device body 8 is arranged outside the crystallizer 6, the electromagnetic device body 8 comprises a plurality of fixing rods 4, the fixing rods 4 are divided into a plurality of groups, the top of each group of four fixing rods 4 is fixed with an iron core assembly 1 through screws, the outer surface of the iron core assembly 1 is fixed with three reinforcing salient poles 3, the outer surfaces of the three reinforcing salient poles 3 are wound with electromagnetic stirring coils 2, the outer surfaces of the reinforcing salient poles 3 are wound with the same material and the same number of electromagnetic stirring coils 2, the electromagnetic device body 8 comprises the iron core assembly 1 and the electromagnetic stirring coils 2, a single iron core assembly 1 is arranged on the four fixing rods 4 through screws, the three reinforcing salient poles 3 are arranged on the single iron core assembly 1, the same material and the same number of electromagnetic stirring coils 2 are, the reinforcing salient poles 3 have the effects of improving the utilization rate of a magnetic field and increasing the stirring force.
Example 2: referring to fig. 2-4, the electromagnetic stirring coils 2 are provided with a plurality of electromagnetic stirring coils 2, and are divided into a plurality of groups, each group of three electromagnetic stirring coils 2 forms a C-shaped electromagnetic inductor 5, the C-shaped electromagnetic inductors 5 are provided with a plurality of electromagnetic stirring coils, each C-shaped electromagnetic inductor 5 can form a complete rotational flow magnetic field, when the electromagnetic device body 8 is used, molten metal is acted by electromagnetic force to form a motion track, each three coils of the device form a C-shaped electromagnetic inductor 5, each C-shaped electromagnetic inductor 5 can form a complete rotational flow magnetic field, the C-shaped electromagnetic inductor 5 is used as a subunit rotational flow magnetic field, N C-shaped coils form N rotational flow magnetic fields, each two adjacent C-shaped electromagnetic inductors 5 can synthesize a large rotational flow magnetic field, all C-shaped electromagnetic inductors 5 can synthesize an integral large rotational flow magnetic field, different magnetic fields are formed by different combinations, is suitable for products with different diameters and different purposes.
Example 3: referring to fig. 5-6, the electromagnetic device body 8 is installed at the middle-lower part of the liquid cavity of the crystallizer 6 and connected with the upper part of the water tank 7 through bolts, the electromagnetic device body 8 can also be installed below the crystallizer 6, when the electromagnetic device body 8 is used, the crystallizer 6 for casting is installed in the water tank 7, the electromagnetic device body 8 is installed at the middle-lower part of the liquid cavity of the crystallizer 6 and connected with the upper part of the water tank 7 through bolts, the water in the water tank 7 cools the electromagnetic stirring coil 2 while cooling the crystallizer 6, and when the crystallizer 6 is a short crystallizer 6, the electromagnetic device body can be hung below the crystallizer 6 according to the actual situation.
When the electromagnetic stirring device is used, the electromagnetic stirring coils 2 made of the same material and in the same quantity are wound on each reinforcing salient pole 3 of the stirrer, after the electromagnetic stirring coils are electrified, a strong variable magnetic field is generated by using electric current to penetrate through the barriers of multiple layers of media, so that multiple groups of molten metal generate rotational motion for shunting in a casting bar, the radial temperature and components of the casting blank are exchanged, the axial depth of a liquid cavity is reduced due to the radial exchange, the internal and external temperature difference is reduced, the solidification condition of the casting bar is changed, and the uniformity of crystal grains is improved.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (6)
1. Many whirl stirring of electromagnetism casting device, including water tank (7), its characterized in that: a crystallizer (6) is arranged in the water tank (7), and an electromagnetic device body (8) is arranged outside the crystallizer (6);
the electromagnetic device body (8) comprises a plurality of fixing rods (4), the fixing rods (4) are arranged in groups, and an iron core assembly (1) is fixed at the top of each group of four fixing rods (4) through screws;
the outer surface of the iron core assembly (1) is fixed with three reinforcing salient poles (3), and the outer surfaces of the three reinforcing salient poles (3) are wound with electromagnetic stirring coils (2).
2. The electromagnetic multi-swirl stir casting apparatus according to claim 1, wherein: the electromagnetic stirring coils (2) are provided with a plurality of groups, and each group of three electromagnetic stirring coils (2) form a C-shaped electromagnetic inductor (5).
3. The electromagnetic multi-swirl stir casting apparatus according to claim 1, wherein: the outer surface of the reinforcing salient pole (3) is wound with the same number of electromagnetic stirring coils (2) made of the same material.
4. The electromagnetic multi-swirl stir casting apparatus according to claim 2, wherein: the C-shaped electromagnetic inductors (5) are arranged in a plurality, and each C-shaped electromagnetic inductor (5) can form a complete rotational flow magnetic field.
5. The electromagnetic multi-swirl stir casting apparatus according to claim 1, wherein: the electromagnetic device body (8) is arranged at the middle lower part of a liquid cavity of the crystallizer (6) and is connected with the upper part of the water tank (7) through a bolt.
6. The electromagnetic multi-swirl stir casting apparatus according to claim 1, wherein: the electromagnetic device body (8) can also be arranged below the crystallizer (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911007367.5A CN110681836A (en) | 2019-10-22 | 2019-10-22 | Electromagnetic multi-cyclone stirring casting device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911007367.5A CN110681836A (en) | 2019-10-22 | 2019-10-22 | Electromagnetic multi-cyclone stirring casting device |
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| Publication Number | Publication Date |
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| CN110681836A true CN110681836A (en) | 2020-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911007367.5A Pending CN110681836A (en) | 2019-10-22 | 2019-10-22 | Electromagnetic multi-cyclone stirring casting device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115194107A (en) * | 2022-07-13 | 2022-10-18 | 沈阳工程学院 | Multi-segment independently adjustable composite magnetic field device and method for controlling molten metal flow |
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|---|---|---|---|---|
| KR20030016869A (en) * | 2001-08-22 | 2003-03-03 | 김춘식 | A electromagnet stirrer in continuous casting machine |
| CN102107266A (en) * | 2010-12-01 | 2011-06-29 | 河北优利科电气有限公司 | Method for driving unconsolidated molten metal in cast ingot to flow |
| CN204413085U (en) * | 2015-01-28 | 2015-06-24 | 石家庄爱迪尔电气有限公司 | Electromagnetism crystallization agitator |
| CN105057622A (en) * | 2015-08-21 | 2015-11-18 | 中南大学 | Method and device for restraining macrosegregation of cast aluminum alloy cast ingots in direct chill (DC) casting |
| CN105728679A (en) * | 2016-04-26 | 2016-07-06 | 湖南中科电气股份有限公司 | Magnetic shielding type multi-mode meniscus electromagnetic stirring system and method for continuous casting of square and round billets |
| CN109158563A (en) * | 2018-10-31 | 2019-01-08 | 燕山大学 | Continuous cast mold magnetic stirrer with resultant field |
| CN210908017U (en) * | 2019-10-22 | 2020-07-03 | 石家庄爱迪尔电气有限公司 | Electromagnetic multi-cyclone stirring casting device |
-
2019
- 2019-10-22 CN CN201911007367.5A patent/CN110681836A/en active Pending
Patent Citations (7)
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|---|---|---|---|---|
| KR20030016869A (en) * | 2001-08-22 | 2003-03-03 | 김춘식 | A electromagnet stirrer in continuous casting machine |
| CN102107266A (en) * | 2010-12-01 | 2011-06-29 | 河北优利科电气有限公司 | Method for driving unconsolidated molten metal in cast ingot to flow |
| CN204413085U (en) * | 2015-01-28 | 2015-06-24 | 石家庄爱迪尔电气有限公司 | Electromagnetism crystallization agitator |
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Non-Patent Citations (1)
| Title |
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| 王刚，彭卫东，蒋贤海: "电工基础", vol. 2012, 30 September 2012, 天津大学出版社, pages: 94 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115194107A (en) * | 2022-07-13 | 2022-10-18 | 沈阳工程学院 | Multi-segment independently adjustable composite magnetic field device and method for controlling molten metal flow |
| CN115194107B (en) * | 2022-07-13 | 2023-05-16 | 沈阳工程学院 | Multi-stage independent adjustable composite magnetic field device and method for controlling metal liquid flow |
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