CN101111333A - Apparatus for continuous casting of magnesium billet or slab using electromagnetic field and the method thereof - Google Patents
Apparatus for continuous casting of magnesium billet or slab using electromagnetic field and the method thereof Download PDFInfo
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- CN101111333A CN101111333A CNA2005800473235A CN200580047323A CN101111333A CN 101111333 A CN101111333 A CN 101111333A CN A2005800473235 A CNA2005800473235 A CN A2005800473235A CN 200580047323 A CN200580047323 A CN 200580047323A CN 101111333 A CN101111333 A CN 101111333A
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- mould
- equipment
- billet
- magnesium
- casting
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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
- B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
- B22D11/049—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds for direct chill casting, e.g. electromagnetic casting
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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
- B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
- B22D11/055—Cooling the moulds
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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
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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
- B22D21/00—Casting non-ferrous metals or metallic compounds so far as their metallurgical properties are of importance for the casting procedure; Selection of compositions therefor
- B22D21/02—Casting exceedingly oxidisable non-ferrous metals, e.g. in inert atmosphere
- B22D21/04—Casting aluminium or magnesium
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
Abstract
An apparatus for continuous casting of magnesium billets or slabs using an electromagnetic field, and a method thereof compensates small solidification latent heat of magnesium, controls a solidification speed, and stirs molten metal within a mold via an electromagnetic field, thereby enabling continuous casting. The apparatus comprises a mold for continuous casting an as-cast billet or slab, a coil positioned outside the mold and adapted to allow electric current to be applied thereto, and a cooling nozzle positioned outside the mold and the as-cast billet or slab. During casting, electric current having a frequency of 2 - 1,000 D or electric current of 50 - 10,000 A having a frequency of 200 - 200,000 D is applied to the coil. A magnesium billet or slab having enhanced inner quality can be produced at a high casting speed without surface defects by applying a low frequency or high frequency electromagnetic field to the mold during continuous casting of magnesium.
Description
Technical field
The present invention relates to utilize the Apparatus for () and method therefor of electromagnetic field direct casting magnesium billet or magnesium plate, this equipment can be controlled setting rate, thereby can carry out direct casting by applying the little latent heat of solidification of high frequency or low frequency electromagnetic field compensation magnesium.
More particularly, the present invention relates to utilize the Apparatus for () and method therefor of electromagnetic field direct casting magnesium billet or magnesium plate, described equipment applies low frequency electromagnetic field to motlten metal in direct casting magnesium, thus the heating and melting metal, thereby can compensate the little latent heat of solidification of magnesium, the control setting rate; Described equipment also comprises the low frequency electromagnetic agitating device that is positioned at the mould below, thereby makes the high-quality billet that does not have blemish under high casting rate.
In addition, the present invention relates to utilize the Apparatus for () and method therefor of electromagnetic field direct casting magnesium billet or magnesium plate, described equipment is suitable in the process of direct casting magnesium specific mould being applied the electromagnetic field of high frequency, also comprise the low frequency electromagnetic agitating device that is positioned at this mould bottom, thereby under high casting rate, make billet with blemish.
Background technology
Magnesium alloy is the metal of very light in weight, because it has splendid physical property, for example high specific strength, splendid electromagnetic interference (EMI) shielding, splendid heat dispersion and vibration damping capacity etc., be widely used in various fields, comprise the lightweight component that is used to transport parts to the electronic device that is used for information communication.Because the latent heat of solidification of magnesium is very little, in casting cycle, can solidify rapidly, therefore can't cast by the continuous casting process of routine.
In addition, because magnesium products normally makes by casting die, still have nothing to do at present in the patent or the report of the direct casting of magnesium.Unique exception is that two roller continuous casting process are used to make the magnesium plate.
Simultaneously, because the latent heat of solidification of magnesium alloy is very little, can solidify rapidly in casting process, and therefore have various defectives after solidifying, be inconvenient so magnesium alloy is carried out direct casting.For the direct casting of magnesium alloy, need to suppress energetically cooling, so the quickening of casting rate has a limit.
Austrian LKR has developed the method for the direct casting magnesium plate of a kind of MGACAST of being called as.This method is by improving being used for conventional directly cold quenching (DC) casting method of direct casting aluminium, is used for direct casting magnesium plate.Because this method can form many defectives on the magnesium plate surface of casting, so the problem that exists is to need to use the scafing method to remove defective from magnesium plate surface, its casting rate is very low.
In addition, although can make the magnesium plate, also can on the magnesium plate surface of casting, form many defectives, and casting rate is extremely low with horizontal continuous casting process.
Summary of the invention
Technical problem
In view of the above problems, we have proposed the present invention.A target of the present invention provides a kind of Apparatus for () and method therefor that utilizes electromagnetic field direct casting magnesium billet or magnesium plate, this equipment can prevent to form various blemish in casting cycle, accelerate casting rate, reduce internal flaw, boost productivity by axle construction such as formation.
Another target of the present invention provides the Apparatus for () and method therefor that utilizes electromagnetic field direct casting magnesium billet or magnesium plate, and described equipment can make axle construction such as its formation by stirring molten metal, thereby reduces internal flaw, can also boost productivity.
Technical scheme
According to one aspect of the invention, by the equipment that utilizes electromagnetic field direct casting magnesium billet or magnesium plate is provided, realized above-mentioned target and other target, described equipment comprises: be used for the billet of direct casting casting or the mould of sheet material; Be positioned at described mould outer, can be used for it is applied the coil of electric current; Be positioned at the billet or the outer cooling jet of sheet material of described mould and casting.
Preferably, described coil is applied low-frequency current, the top in described mould provides removable ring.
Preferably, described ring is made by graphite.
Preferably, described mould has the cross section of circle or rectangle, and described coil is around described mould setting.
Preferably, described cooling jet cools off them by directly spraying water on described mould, coil and as-cast billet or sheet material.
The present invention provides a kind of method of utilizing electromagnetic field direct casting magnesium billet or magnesium plate on the other hand, this method is used the equipment with electromagnetic field direct casting magnesium billet or magnesium plate of the above-mentioned aspect according to the present invention, coil to described equipment in casting cycle applies the electric current that frequency is 2～1,000.
Another aspect of the present invention relates to a kind of equipment that utilizes electromagnetic field direct casting magnesium billet or magnesium plate, and this equipment comprises: wherein be formed with slit, be used for the billet of direct casting casting or the mould of sheet material; Be positioned at described mould outside, can apply the coil of electric current it; And the electromagnetic mixing apparatus that is positioned at described mould bottom.
Preferably, described mould has the section of being separated by described slit, has formed cooling-water duct in described section.
Preferably, described slit is formed on the central area of mould, extends to the top of mould lower end from the below of mould upper end.
Preferably, the width of described slit is 0.2～0.3, has filled vitrified bond, makes it possible to the motlten metal in the described mould is applied electromagnetic field, prevents molten metal leakage simultaneously.
Preferably, described mould has the cross section of circle or rectangle, and the coil that is provided is round described mould.
Preferably, described equipment also comprises the cooling jet between described mould and electromagnetic mixing apparatus.
Preferably, described cooling jet is directly to the billet of described casting or sheet material and electromagnetic mixing apparatus water spray, thereby they are cooled off.
The present invention provides a kind of method of utilizing electromagnetic field direct casting magnesium billet or magnesium plate on the other hand, the equipment that this method adopts is the equipment that others are utilized electromagnetic field direct casting magnesium billet or magnesium plate according to the present invention, wherein the coil of described equipment being applied frequency is 50～10 of 200～200000, the electric current of 000A, with the frequency of 2～100 the electromagnetic mixing apparatus of described equipment is applied 20～1, the electric current of 000A.
Useful effect
According to the present invention, described equipment comprises: the mould that is formed by copper with satisfactory electrical conductivity or copper alloy; Be positioned at the outer coil of described mould, this coil is used in the process of casting magnesium mould being applied electromagnetic field, thereby the magnesium to fusion in the mould carries out eddy-current heating, contact pressure between the unit that reduces described mould by electromagnetic pressure simultaneously and solidify is to avoid forming blemish in casting cycle; Be provided with electromagnetic mixing apparatus in the mould bottom, to improve casting rate and die depth (depth of pool).
In addition, the present invention has used low frequency electromagnetic field in casting magnesium, comprise the mould of making by the copper with satisfactory electrical conductivity, copper alloy or aluminium alloy, and be positioned at the outer coil of mould, this coil is used for mould is applied electromagnetic field, with electromagnetic field the magnesium of fusion is carried out eddy-current heating,, thereby can carry out direct casting simultaneously with the low frequency electromagnetic field stirring molten metal.
Exemplary structure of the present invention and operation are described below with reference to accompanying drawings.But it should be noted that to the invention is not restricted to these concrete structures, below describe as being used for understanding example of the present invention.
The accompanying drawing summary
In conjunction with the accompanying drawings, can more be expressly understood above and other target of the present invention, feature and other advantage by following detailed description, wherein:
Fig. 1 is the concept map that utilizes the equipment of electromagnetic field direct casting magnesium billet or magnesium plate according to first embodiment of the invention, and this equipment comprises circular mould, and the coil that can apply low-frequency current to it;
Fig. 2 is the plane of the first embodiment device therefor, and this equipment comprises circular mould, and the coil that can apply low-frequency current to it;
Fig. 3 is the concept map that utilizes the equipment of electromagnetic field direct casting magnesium billet or magnesium plate according to second embodiment of the invention, and this equipment comprises circular mould, and the coil that can apply high frequency electric to it;
Fig. 4 is the plane of the second embodiment device therefor, and this equipment comprises circular mould, and the coil that can apply high frequency electric to it;
Fig. 5 a and Fig. 5 b are a kind of variation diagrams of second embodiment of the invention device therefor, and this equipment comprises rectangular mould;
Fig. 6 is the schematic diagram that shows the magnetic direction of the sense of current in the mould of present device and generation thereof;
Fig. 7 is the surface of the motlten metal that relatively forms by conventional casting technique and the schematic diagram that applies the molten metal surface that low-frequency current and high frequency electric obtain by equipment according to the present invention;
Fig. 8 a and 8b are respectively by routine techniques with according to the photo on the magnesium billet surface of device fabrication of the present invention.
Best mode for carrying out the invention
Describe the preferred embodiment of the present invention below with reference to accompanying drawings in detail.
Fig. 1 is the concept map that utilizes the equipment of electromagnetic field direct casting magnesium billet or magnesium plate according to first embodiment of the invention.
According to first embodiment, utilize the equipment 1 of electromagnetic field direct casting magnesium billet or magnesium plate to comprise: to be used for mould 11 that motlten metal 15 is solidified, be positioned at described mould 11 outer, be used for it is applied the coil 12 of low-frequency current, thereby be positioned at described mould 11 inside upper surface, be used for controlling the ring 13 that the curing of motlten metal can be cast reposefully, be used for cooling off described ring 13, the billet of casting or the cooling water nozzle 16 of sheet material 14 and mould 11.
Fig. 2 is the plane that utilizes the equipment of electromagnetic field direct casting magnesium billet or magnesium plate according to first embodiment.
Although show among the figure that mould 11 and coil 12 have circular cross section, described mould 11 and coil 12 can have cross section rectangle or other shape.
As shown in Figure 6, when coil 13 is applied low-frequency current, induce to produce magnetic field and electric current in the magnesium 15 of fusion, the magnesium of described fusion is positioned at by the metal mould 11 with satisfactory electrical conductivity.
These induced-currents not only heat by joule and come the heating and melting metal, and by interacting with electromagnetic field, produce electromagnetic force in motlten metal.In the time of the sensed current flow heats of motlten metal, at the place, unit of motlten metal initial solidification, the cooling effect of cooling water is weakened, thereby makes motlten metal stably to solidify.
The electromagnetic force that produces in the motlten metal 15 has gradient, and bigger in the electromagnetic force at molten metal surface place, the electromagnetic force of molten metal is less, makes motlten metal be stirred in mould, has improved the internal structure of billet.
The length of described ring 13 extends under the molten metal surface about 20 millimeters from the top of mould, thickness is equal to or greater than 2.When ring 13 ruined the time, can be with new ring replacement.
The frequency that is applied to the low frequency electromagnetic field on the coil 12 is 2～1,000, and frequency is according to the billet of casting or the decision of the size of sheet material.Current strength also is to determine according to the size of the billet of casting or sheet material and casting rate.
Is by nozzle 16 to mould 11 with the billet of casting or the cooling of sheet material 14, carries out with the mode of the direct cooling of cooling water.Cooling water has cooled off ring 13 and the coil 12 in mould 11, the mould 11 simultaneously.
Fig. 3 is the concept map that utilizes the equipment of electromagnetic field direct casting magnesium billet or magnesium plate according to second embodiment of the invention.
According to second embodiment, utilize the equipment 100 of electromagnetic field direct casting magnesium billet or magnesium plate to comprise: to be used for mould 101 that motlten metal 105 is solidified; Be positioned at described mould 101 outsides, can apply the coil 102 of high frequency electric it; Be positioned at described mould 101 bottoms, be used for electromagnetic mixing apparatus 103 that motlten metal 105 is stirred; And between described mould 101 and agitating device 103, be used for the nozzle 104 that the billet or the sheet material 106 of casting cooled off by spraying refrigerant.
Utilizing according to second embodiment in the equipment 100 of electromagnetic field direct casting magnesium billet or magnesium plate, described mould 101 has the cooling-water duct 107 that is formed at wherein, cooling water is by these path 10 7 circulations, and mould 101 also comprises the manifold that is used to provide and discharges cooling water 108 that links to each other with path 10 7.
Fig. 4 is the plane that utilizes the equipment 100 of electromagnetic field direct casting magnesium billet or magnesium plate according to the present invention.
Although show among the figure that mould 101 and coil 102 have circular cross section, the cross section that mould 101 and coil 102 can have rectangle or other shape.
The width of each slit 109 is equal to or greater than 0.1, is preferably 0.2～0.3.The quantitative range of slit 109 is not can cause negative effect to be as the criterion to the rigidity of mould 101.Each slit 109 is provided,,, leaks with fusion proof metal 105 preferably with fillings such as vitrified bonds with induction of high frequency.
Because the penetration depth of electromagnetic field of high frequency in motlten metal is minimum, is difficult to allow the electromagnetic field of high frequency that applies enter in the mould 101 that is made of copper.Therefore, in mould 101, form slit 109, so that can apply the electromagnetic field of high frequency effectively to motlten metal 105 by machining.On the other hand, because low frequency electromagnetic field has big penetration depth in motlten metal, so can put on the motlten metal in the copper mould.Therefore need in mould, not form slit.
Fig. 5 a and 5b be according to second embodiment utilize the rectangular mould 101 of the equipment of electromagnetic field direct casting magnesium billet or magnesium plate ' figure.Specifically, Fig. 5 a be rectangular mould 101 ' front view, wherein slit 109 ' be formed at the zone line of mould extends to the top of mould 101 ' lower end from the below of mould 101 ' upper end.Slit 109 ' length range with not can to mould 101 ' rigidity cause negative effect to be as the criterion.
Each slit 109 ' width be equal to or greater than 0.1, slit 109 ' quantitative range can the rigidity of mould not caused negative effect be as the criterion.
Fig. 5 b is the sectional view along the straight line A-A ' of Fig. 5 a, among the figure each section 110 of being separated by slit ' middle formed be used for cooling die 101 ' independently cooling-water duct 107 '.
For the second embodiment device therefor 100, as shown in Figure 6, when coil 102 was applied high frequency electric, induction had produced magnetic field and electric current in the molten magnesium 105 of 101 li on the mould of being separated by slit 109.
These induced-currents not only heat by joule and come heating and melting metal 105, and by in motlten metal 105, producing electromagnetic force with magnetic field interaction.Electromagnetic force has increased motlten metal 105 contacts part motlten metal 105 surperficial S with mould 101 curvature (see figure 3), has reduced the billet of casting or contact pressure between sheet material 106 and the mould 101 simultaneously.
Utilize the equipment in the described embodiment, can heat consumingly the surface of motlten metal by the joule mode of heating, thereby can control freezing rate, increase latent heat of solidification simultaneously, therefore can carry out direct casting, and can not produce by the inhomogeneous defective that causes with quenching of solidifying.
Utilize the equipment 100 of electromagnetic field direct casting magnesium billet or MAG block also to have the nozzle 104 that is connected with mould 101 bottoms according to second embodiment, this nozzle is by cooling off it to the billet of casting or sheet material 106 direct injection gases or water.
Except thereby the cooling of billet by electromagnetic field of high frequency control casting or sheet material 106 can be carried out direct casting, equipment in second embodiment also can comprise the electromagnetic mixing apparatus 103 that links to each other with the bottom of mould 101, this agitating device 103 is used for motlten metal 106 is stirred, to control its internal soundness.
When rotating electromagnetic agitating device 103 and when motlten metal 105 is rotated along the circumferential direction in mould 101, the column structure of motlten metal is broken, axle construction such as the billet of feasible casting or the general structure of sheet material 106 become, thus the billet with good cast structure is provided.
The equipment 100 direct casting magnesium billets that use in second embodiment or the method for magnesium plate will be described below.
For as-cast billet or the sheet material 106 with excellent surface quality and internal soundness is provided, coil 102 is applied 50～10,000A, frequency are the high frequency electric of 200～200,000.
In addition, it is 20～1 of 2～100 that described electromagnetic mixing apparatus 103 is applied frequency, the electric current of 000A.The frequency of coil or electromagnetic mixing apparatus is according to the size decision of billet 106, and current's intensity also determines according to the billet of casting or the size and the casting rate of sheet material.According to the present invention, although Jiao Zhu billet or sheet material 106 have the cross section of circle or rectangle as mentioned above, this billet can have other shape.
Fig. 7 be the motlten metal that obtains of the casting technique by routine the surface with use equipment of the present invention, apply the comparative descriptions figure of the molten metal surface that low-frequency current and high frequency electric obtain.
Referring to Fig. 7, in the pouring operation of routine, the surface of motlten metal contacts with mould with the right angle, in the time of the billet that therefore makes when moving down, produce violent friction between motlten metal and the mould, the billet of feasible casting or the surface quality variation of sheet material.
On the other hand, in using equipment of the present invention, mixing with the electromagnetic casting that applies high frequency electric, because the character of high frequency, the penetration depth of electromagnetic field of high frequency is very shallow, therefore concentrate on the surface of motlten metal, make the surface of motlten metal have great radius of curvature.Therefore, the friction between billet that can reduce to cast or plate and the mould.
Therefore, because electromagnetic force concentrates on the surface of motlten metal, its stirring action to the inside of motlten metal is less, makes motlten metal can keep stable.But, owing to cause the internal soundness of motlten metal can't obtain to improve to the low stirring action power of motlten metal, for equipment of the present invention provides electromagnetic mixing apparatus to improve the internal soundness of motlten metal.
In addition, using equipment of the present invention to apply in the electromagnetic pouring of low-frequency current, low frequency electromagnetic field has dark penetration depth, therefore divides than the deep with motlten metal to interact, thereby has improved mixing effect.But, to compare with high frequency electric, the effect of low-frequency current raising surface quality is relatively poor.Do not consider that lower surface quality improves effect, use the present device of low-frequency current to have the low advantage of cost of equipment.
Fig. 8 a and 8b are the photos on as-cast billet 106 surfaces that make after the fusion AZ31 magnesium alloy.Fig. 8 a is the photo on billet 106 surfaces that does not apply the casting of electromagnetic field according to routine techniques.The billet 106 of casting has many blemish, can not be by conventional pouring operation manufacturing.
Fig. 8 b is the photo on surface that has applied the as-cast billet 106 of electromagnetic field according to the present invention.The billet 106 of casting does not have blemish, can be equal to or greater than 0.4 meter/minute and makes by casting rate is increased to.
Industrial applicibility
Can clearly be seen that by above description, the invention provides following beneficial effect: can make magnesium or magnesium alloy as-cast billet or the sheet material that internal soundness obtains raising with the casting rate of accelerating, and not produce blemish.
Although disclosed the preferred embodiment of the present invention for purposes of illustration, it will be appreciated by those skilled in the art that and under the prerequisite of the scope of the invention that does not deviate from the appended claims announcement and spirit, to carry out various changes, interpolation and alternative.It should be noted that these change, add and alternative being included in the scope of the present invention.
Claims (14)
1. equipment that utilizes electromagnetic field direct casting magnesium billet or magnesium plate, it comprises:
Be used for the mould of direct casting billet or sheet material;
Be positioned at outside the described mould, allow to apply the coil of electric current;
Be positioned at the billet or the outer cooling jet of sheet material of described mould and casting.
2. equipment as claimed in claim 1 is characterized in that, described coil is applied low-frequency current, and the top in described mould provides interchangeable ring.
3. equipment as claimed in claim 2 is characterized in that described ring is made by graphite.
4. equipment as claimed in claim 1 is characterized in that described mould has the cross section of circle or rectangle, and described coil is around the mould setting.
5. equipment as claimed in claim 1 is characterized in that, described cooling jet is by directly to described mould, coil and as-cast billet or sheet material water spray and they are cooled off.
6. method of using electromagnetic field direct casting magnesium billet or magnesium plate, this method is used as each described equipment among the claim 1-5, and wherein, the coil to described equipment in casting cycle applies the electric current that frequency is 2～1,000.
7. equipment that uses electromagnetic field direct casting magnesium billet or magnesium plate, this equipment comprises:
Be used for the mould of direct casting magnesium billet or magnesium plate, be formed with slit in this mould;
Be positioned at outside the described mould, allow to apply the coil of electric current;
Be positioned at the electromagnetic mixing apparatus of described mould bottom.
8. equipment as claimed in claim 7 is characterized in that described mould has the section of being separated by described slit, has formed cooling-water duct in described section.
9. equipment as claimed in claim 8 is characterized in that described slit is formed on the central area of described mould, extends to the top of mould lower end from the below of mould upper end.
10. equipment as claimed in claim 8 is characterized in that described slit width is 0.2～0.3, has filled vitrified bond, so that the motlten metal in the mould is applied electromagnetic field, prevents molten metal leakage simultaneously.
11. equipment as claimed in claim 7 is characterized in that, described mould has cross section circular or rectangle, provides described coil around described mould.
12. equipment as claimed in claim 7 is characterized in that, described equipment also comprises the cooling jet between described mould and electromagnetic mixing apparatus.
13. equipment as claimed in claim 12 is characterized in that, described cooling jet is by to the direct water spray and it is cooled off of the billet of casting or sheet material and electromagnetic mixing apparatus.
14. method of using electromagnetic field direct casting magnesium billet or magnesium plate, this method is used each described equipment among the claim 7-13, wherein, in casting cycle, with 200～200, the frequency of 000 applies 50～10 to the coil of described equipment, the electric current of 000A, with the frequency of 2～100 the electromagnetic mixing apparatus of equipment is applied 20～1, the electric current of 000A.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020040111235 | 2004-12-23 | ||
| KR1020040111236A KR100721874B1 (en) | 2004-12-23 | 2004-12-23 | Apparatus for continuous casting of Magnesium billet or slab using low frequency electromagnetic field |
| KR1020040111236 | 2004-12-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101111333A true CN101111333A (en) | 2008-01-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2005800473235A Pending CN101111333A (en) | 2004-12-23 | 2005-12-22 | Apparatus for continuous casting of magnesium billet or slab using electromagnetic field and the method thereof |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR100721874B1 (en) |
| CN (1) | CN101111333A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105478695A (en) * | 2016-01-09 | 2016-04-13 | 石家庄钢铁有限责任公司 | Multi-zone electromagnetic stirring device and method for continuous casting machine crystallizer |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101050798B1 (en) * | 2008-12-19 | 2011-07-21 | 재단법인 포항산업과학연구원 | Magnesium Alloy Billet Continuous Casting Machine |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61119359A (en) | 1984-11-15 | 1986-06-06 | Showa Alum Ind Kk | Continuous casting method of magnesium or ally thereof |
| JPS63149056A (en) * | 1986-12-10 | 1988-06-21 | Kobe Steel Ltd | Continuous casting method for non-ferrous metal |
| JPH05148565A (en) * | 1991-11-28 | 1993-06-15 | Showa Alum Corp | Production of particle dispersed magnesium alloy by using high energy density heat source |
| JPH07155906A (en) * | 1993-12-08 | 1995-06-20 | Leotec:Kk | Method for continuously producing half-solidified metallic material having good workability by electromagnetic stirring method |
| JP2003340553A (en) | 2002-05-28 | 2003-12-02 | Sumitomo Metal Ind Ltd | Continuous casting method for magnesium alloy sheet |
| JP2004195526A (en) | 2002-12-20 | 2004-07-15 | Sumitomo Metal Ind Ltd | Continuous casting method for molten magnesium molten alloy |
-
2004
- 2004-12-23 KR KR1020040111236A patent/KR100721874B1/en active IP Right Grant
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2005
- 2005-12-22 CN CNA2005800473235A patent/CN101111333A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105478695A (en) * | 2016-01-09 | 2016-04-13 | 石家庄钢铁有限责任公司 | Multi-zone electromagnetic stirring device and method for continuous casting machine crystallizer |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100721874B1 (en) | 2007-05-28 |
| KR20060072562A (en) | 2006-06-28 |
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Application publication date: 20080123 |