CN205254062U - Square billet components of a whole that can function independently multi -mode electromagnetic agitator - Google Patents
Square billet components of a whole that can function independently multi -mode electromagnetic agitator Download PDFInfo
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- CN205254062U CN205254062U CN201620028376.8U CN201620028376U CN205254062U CN 205254062 U CN205254062 U CN 205254062U CN 201620028376 U CN201620028376 U CN 201620028376U CN 205254062 U CN205254062 U CN 205254062U
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- electromagnetic mixing
- mixing apparatus
- coil
- phase
- shaped electromagnetic
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Abstract
The utility model discloses a square billet components of a whole that can function independently multi -mode electromagnetic agitator connects the fastening device to be formed by connecting in 2 or 4 L shape electromagnetic stirring devices through the auto -lock soon, the auto -lock connects the fastening device to include locating pin and the locating hole that welds respectively in L shape electromagnetic stirring device both ends soon, be equipped with holding screw on the outer wall of locating hole, when L shape electromagnetic stirring device was connected, locating pin on L shape electromagnetic stirring device inserted on another L shape electromagnetic stirring device in the locating hole to through impeing the holding screw on the locating hole outer wall to press from both sides tightly the locating pin, realize two high -speed joint and location between the L shape electromagnetic stirring device. The utility model discloses on same conticaster, can effectively take into account the casting blank section of certain limit, can change the phase place of 4 electric currents of coil in the L shape electromagnetic stirring device according to on -the -spot operating mode in real time through PLC the control unit, realize different stirring modes and field form.
Description
Technical field
The utility model relates to magnetic stirrer, particularly a kind of be suitable for the square billet split of continuous casting square billet manyPattern magnetic stirrer.
Background technology
Electromagnetic agitation (Electromagneticstirring:EMS) technology, because of its improve continuous casting billet quality,Stabilizing continuous casting operation, expand variety steel and the aspect of boosting productivity has irreplaceable effect, and become continuous castingOne of key technology in technology. The general principle of electromagnetic agitation is the alternating magnetic field that utilizes magnetic stirrer to exciteBe penetrated in the molten steel of strand, induce therein electric current, this induced-current and local magnetic field interaction produceElectromagnetic force, electromagnetic force is body force, acts on molten steel volume element, thereby can promote molten steel motion. Thus canSeeing, is by the stream of molten steel in electromagnetic force control casting blank liquid core on electromagnetic agitation control casting blank solidification process natureMoving form and flow strength, thus surface quality and the subcutaneous quality etc. of continuous casting billet are significantly improved, carryThe cleannes of Gao Gang, expand the equiax crystal district of strand, reduce component segregation, alleviate or eliminates center porosity with inHeart shrinkage cavity, realizes the object of production high-quality, high kind steel.
The design of tradition electromagnetic square billet mixer is all: core structure is designed to circular or square monoblock type by aStructure; Although monolithic construction compact conformation, is convenient to install and fixes, fixing version cannot ensure sameThe metallurgical mixing effect of the best of the certain limit section of one conticaster upper; B stirs its magnetic field to certain electricForm and agitating function are all unique, cannot change in real time online according to the variation of process conditions. But existingDuring continuous casting is produced, because the process conditions such as the installation site of casting blank section, steel grade, pulling rate, agitator are ever-changing,Objectively need magnetic field configuration and the agitating function of regular change electromagnetic agitation. For example, to M-EMS, be arranged near the magnetic stirrer in the liquid level mouth of a river, for forming good base shell, clean solidification front,Need to stir the rotating excitation field of liquid level, and inside steel billet magnetic field can not be too large, in order to avoid cause liquid level fluctuation of molten steel.The M-EMS relatively far away apart from mouth of a river liquid level, mainly solves the degree of superheat of eliminating strand inside, shapeBecome equiax crystal, wish that inside steel billet magnetic field is large as much as possible, need to adopt a pair of utmost point rotation that penetration capacity is strongOr travelling-magnetic-field stir mode. For two cold or end electromagnetic agitation, most steel grades are applicable to employing and revolveTurn electromagnetic agitation function, and some steel grades more wish that strengthening molten steel with the straight line agitating function of travelling-magnetic-field type mendsContracting, increases stirring region, obtains best mixing effect.
Utility model content
The technical problem that the utility model solves is that the deficiency existing for prior art, for continuous casting square billetPropose a kind of split multi-mode EMS device, on same conticaster, can effectively take into account the strand of certain limitSection, realizing same electromagnetic mixing apparatus can change the many of field form and agitating function in real time according to field working conditionsPattern electromagnetic agitation function.
Create object for reaching above-mentioned utility model, the utility model adopts following technical proposals:
A kind of square billet split multi-mode EMS device, by 2 or 4 L shaped electromagnetic mixing apparatus 1 fast by self-lockingConnecing tightening device 2 is formed by connecting; Specifically select 2 or 4 L shaped electromagnetic mixing apparatus, large by casting blank sectionLittle decision.
Described self-locking connects tightening device 2 soon, comprises the alignment pin 6 that is welded in respectively L shaped electromagnetic mixing apparatus 1 two endsWith locating hole 7; The outer wall of locating hole 7 is provided with holding screw 9; When L shaped electromagnetic mixing apparatus connects, a LAlignment pin on shape electromagnetic mixing apparatus 6 inserts on another L shaped electromagnetic mixing apparatus in locating hole 7, and passes throughAdvance the holding screw 9 on locating hole 7 outer walls to clamp alignment pin 6, realize two L shaped electromagnetic mixing apparatusBetween quick connection and location;
Described L shaped electromagnetic mixing apparatus 1 comprises L shaped iron core 3 and is evenly distributed on the multiple coils on L shaped iron core 34；
The three phase frequency changing power that every L shaped electromagnetic mixing apparatus connects is independently controlled by respectively PLC and controls singleUnit; Change the phase place of L shaped electromagnetic mixing apparatus interior loop 4 electric currents by PLC control module, realize different stirringPattern and field form; Change the size of L shaped electromagnetic mixing apparatus interior loop electric current, frequently by PLC control moduleRate, magnetic induction intensity and the electromagnetic force Changing Pattern of change square billet split multi-mode EMS device;
Described stir mode comprises single district Stirring pattern and multi-region Stirring pattern, multi-region Stirring mouldNumber of regions n >=2 of formula.
In every kind of stir mode, all comprise two kinds of field forms of 1 pair of magnetic pole and multipair magnetic pole.
Change the phase place of L shaped electromagnetic mixing apparatus interior loop 4 electric currents by PLC control module, produce the magnetic in magnetic fieldNumber of pole-pairs is 1～20.
The side of described alignment pin 6 is provided with relative groove with the inner side of the outer wall of locating hole 7; Described locating hole 7The groove of outer wall inner side in be provided with chock 8; The width of chock 8 is identical with the recess width of alignment pin 6 sides;On the screw rod of holding screw 9, segmentation is provided with left hand thread and right-handed thread, and the screw rod of holding screw 9 is successively through fixedThrough hole on outer wall and the chock 8 in hole 7, position, left hand thread is threaded with chock 8, right-handed thread and locating hole 7Outer wall thread connect. Tighten holding screw 9 (to right rotation holding screw 9), holding screw 9 precession chocks8, promote chock 8 and embed in the groove of alignment pin 6 sides, clamping and positioning between two L shaped electromagnetic mixing apparatus;Otherwise remove.
Described L shaped iron core 3, is folded and is formed by the silicon steel laminations of high conductivity.
Described coil 4 is the winding coil of Gramer's form, and the coil number of L shaped electromagnetic mixing apparatus 1 is 2～18Individual. The winding coil that adopts Gramer's form, coil is evenly distributed on iron core, slotless effect, magnetic field is dividedCloth is even, stirring efficiency is high.
Non-working surface between described L shaped iron core 3 and coil 4 is provided with the magnetic shielding device 5 of high conductivity, to stirringThe leakage field of mixing the peripheral non-working surface of device shields.
Described square billet split multi-mode EMS device, connects button by 2 L shaped electromagnetic mixing apparatus 1 soon by self-lockingTight device 2 is formed by connecting;
Each L shaped electromagnetic mixing apparatus comprises 6 coils, and 6 coils are uniformly distributed on L shaped iron core 3, along suitable1., 2., 3., 4., 5. and 6. clockwise is designated as respectively coil; Coil 1. and 4. series connection is a phase coil,Coil 2. and 5. series connection is a phase coil, and coil 3. and 6. series connection is a phase coil;
Three of respectively with one three phase frequency changing power of head end of the three-phase coil of a L shaped electromagnetic mixing apparatus joinsTerminal connects, and the end of three-phase coil connects together and forms public asterism;
The three phase frequency changing power that each L shaped electromagnetic mixing apparatus connects is independently controlled by respectively PLC and controls singleUnit, on each L shaped electromagnetic mixing apparatus, the current phase of three-phase coil is independently controlled by respectively PLC control listUnit.
Above-mentioned square billet split multi-mode EMS device; Control respectively 2 L shaped electromagnetism by PLC control moduleThe three phase frequency changing power that agitating device connects, thus the phase of L shaped electromagnetic mixing apparatus interior loop 4 electric currents controlledPosition, realizes different stir modes and field form.
The phase place of 2 L shaped electromagnetic mixing apparatus interior loop 4 electric currents is: triple line on 2 L shaped electromagnetic mixing apparatusThe electric current phase sequence of circle is identical, is respectively in the direction of the clock U, V and W. By this combination, make this pointThe field form of body multi-mode EMS device is 4 pairs of pole field Dan district Stirring patterns; The list of the multipair utmost pointDistrict's rotating excitation field, is conducive to clean base shell solidification front, forms good solidified shell.
The phase place of 2 L shaped electromagnetic mixing apparatus interior loop 4 electric currents is: triple line on a L shaped electromagnetic mixing apparatusThe electric current phase sequence of circle is U, V and W in the direction of the clock; The electricity of three-phase coil on another L shaped electromagnetic mixing apparatusStream phase sequence is-U ,-V ,-W in the direction of the clock. By this combination, this split multi-mode electromagnetism is stirredMix device composition and form 1 pair of strong pole field Dan district Stirring pattern of penetration capacity, realize molten steel coreAgitating function.
The phase place of 2 L shaped electromagnetic mixing apparatus interior loop 4 electric currents is: triple line on a L shaped electromagnetic mixing apparatusThe electric current phase sequence of circle is U, V and W in the direction of the clock; The electricity of three-phase coil on another L shaped electromagnetic mixing apparatusStream phase sequence is W, U, V in the direction of the clock. By this combination, make this split multi-mode agitator groupBe shaped as 1 Dui Ji bis-district's stir modes, realize the two subregion agitating functions that molten steel penetration capacity is stronger.
The phase place of 2 L shaped electromagnetic mixing apparatus interior loop 4 electric currents is: triple line on a L shaped electromagnetic mixing apparatusThe electric current phase sequence of circle is U, V and W in the direction of the clock; The electricity of three-phase coil on another L shaped electromagnetic mixing apparatusBe respectively in the direction of the clock-W of stream phase sequence ,-U ,-V. By this combination, make this split multi-mode electricallyMagnetic stirrer forms two subregion Stirring patterns of 4 pairs of utmost points, and mixing effect can clean solidification front, again canGo deep into liquid core.
The utility model has following advantage and beneficial effect:
Split multi-mode EMS device of the present utility model, has taken into account stirring of continuous casting square billet different section preferablyMix effect, size simple in structure is little, and leakage field is little, and operating efficiency is high. Can be according to on-the-spot work to same electromagnetic agitationThe variation of skill and working condition, realizes the multi-mode EMS of different magnetic field form and agitating function, equipment profitHigh by rate, be applicable to the changeable electromagnetic agitation of continuous casting process and produce, there is higher application prospect and value.
Brief description of the drawings
Fig. 1 is the split multi-mode EMS device that 2 L shaped electromagnetic mixing apparatus 1 of the utility model are formed by connecting;
Fig. 2 is the split multi-mode EMS device that 4 L shaped electromagnetic mixing apparatus 1 of the utility model are formed by connecting;
Fig. 3 is the structural representation that the utility model self-locking connects tightening device soon;
Fig. 4 is the structural representation of the L shaped electromagnetic mixing apparatus of the utility model;
Fig. 5 is the back panel wiring schematic diagram of the L shaped electromagnetic mixing apparatus of the utility model;
Fig. 6 is that the utility model 4 is to magnetic pole list district Stirring pattern and magnetic circuit schematic diagram;
Fig. 7 is that the utility model 1 is to magnetic pole list district Stirring pattern and magnetic circuit schematic diagram;
Fig. 8 is that the utility model 1 is to magnetic pole two district's Stirring pattern and magnetic circuit schematic diagrames;
Fig. 9 is that the utility model 4 is to magnetic pole two district's Stirring pattern and magnetic circuit schematic diagrames;
Description of reference numerals:
1, L shaped electromagnetic mixing apparatus, 2, self-locking connects tightening device soon, 3, L shaped iron core, 4, coil, 5,Magnetic shielding device, 6, alignment pin, 7, locating hole, 8, chock, 9, holding screw.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Referring to Fig. 1 and Fig. 2, it is the structural representation of a kind of multifunction electric magnetic stirrer of the utility model split embodimentFigure (agitator inner part miscellaneous part is not shown), square billet split multi-mode EMS device of the present utility model,Comprise that L shaped electromagnetic mixing apparatus 1, self-locking connect tightening device 2 and PLC control module soon. Square billet split multi-mode electricallyMagnetic stirrer entirety connects soon tightening device 2 by 2 or 4 L shaped electromagnetic mixing apparatus 1 by self-locking and is formed by connecting. LShape electromagnetic mixing apparatus 1 is by L shaped iron core, the coil windings of Gramer's form and be arranged on iron core and coil betweenMagnetic shielding device composition. Every L shaped electromagnetic mixing apparatus separate connection PLC control module, by changing L shaped electricityThe phase place of magnetic agitating device 1 interior loop, realizes the change of agitator field form and the direction of motion, reaches multimodeFormula agitating function;
If Fig. 3 is the structural representation that self-locking connects tightening device soon, by being welded in L shaped electromagnetic mixing apparatus one endLocating hole 7 and holding screw 8 that alignment pin 6 is welded in the other end form. The side of alignment pin 6 and locating hole 7The inner side of outer wall be provided with relative groove; In the groove of the outer wall inner side of described locating hole 7, be provided with chock 8;The width of chock 8 is identical with the recess width of alignment pin 6 sides; On the screw rod of holding screw 9, segmentation is provided with a left sideRevolve screw thread and right-handed thread, left hand thread is threaded with chock 8, the outer wall spiral shell of right-handed thread and locating hole 7Line connects. Its operation principle is that alignment pin 6 is through locating hole 7 one sides, by tightening holding screw 9, tighteningScrew 9 precession chocks 8, promote chock 8 and embed in the groove of alignment pin 6 sides, two L shaped electromagnetic agitationClamping and positioning between device; Otherwise remove.
The L shaped electromagnetic mixing apparatus of the present embodiment comprises 6 coils;
Fig. 4 and Fig. 5 are structure and the back panel wiring schematic diagram of the L shaped electromagnetic mixing apparatus of the utility model, comprise LShape iron core 3 and coil 4, magnetic shielding device 5 is arranged between coil 4 and iron core 3. Outside L shaped electromagnetic mixing apparatusOn shell, be welded with self-locking and connect soon tightening device 2. The wiring of every L shaped agitator Inside coil is: 1. and 4. coil connectsBe a phase coil, coil 2. and 5. series connection is a phase coil, and coil 3. and 6. coil series connection is a phase coil, threeThe head end of phase coil is connected with W with three binding post U, V of three phase frequency changing power (not shown) respectively, three-phaseThe end of coil connects together and forms public asterism.
Embodiment 1:
Shown in Fig. 6, excite 4 of single district stir mode for a kind of split multi-mode EMS of the utility model deviceTo magnetic pole magnetic circuit. Described split multi-mode EMS device is made up of 2 L shaped split magnetic stirrers, eachThe L shaped electromagnetic mixing apparatus of platform all respectively and the three-phase of three phase frequency changing power (not shown) of PLC control module is housedElectricity U, V are connected with W. By as the combination of Fig. 4, the field form of this split multi-mode EMS device is4 pairs of pole field Dan district Stirring patterns; Multipair Ji Dan district rotating excitation field, is conducive to clean base shell and solidifiesForward position, forms good solidified shell.
Embodiment 2:
Shown in Fig. 7, excite 1 of single district stir mode for a kind of split multi-mode EMS of the utility model deviceTo magnetic pole magnetic circuit. Change the current phase of a L shaped electromagnetic mixing apparatus in embodiment 1 by PLC control module,By the phase place of this L shaped electromagnetic mixing apparatus by become-U of previous U, V, W ,-V ,-W distribution form (as Fig. 5Shown in), revolve in this split multi-mode EMS device composition formation 1 pair of strong pole field Dan district of penetration capacityTurn stir mode, realize the agitating function to molten steel core.
Embodiment 3:
Shown in Fig. 8 is that a kind of split multi-mode EMS of the utility model device excites two district's Stirring patterns1 pair of magnetic pole magnetic circuit. By PLC control module by the phase sequence edge of a L shaped electromagnetic agitation in embodiment 1 clockwiseDirection is exchanged, and becomes W, U, V distribution form by previous U, V, W, this split multi-mode agitator compositionForm 1 Dui Ji bis-district's stir modes, realize the two subregion agitating functions that molten steel penetration capacity is stronger.
Embodiment 4:
Shown in Fig. 9 is that a kind of split multi-mode EMS of the utility model device excites two district's Stirring patterns4 pairs of magnetic pole magnetic circuits. By PLC control module by the phase sequence edge of a L shaped electromagnetic agitation in embodiment 1 clockwiseDirection is exchanged, and by become-W of previous W, U, V ,-U ,-V distribution form, this split multi-mode electromagnetism stirsThe two subregion Stirring patterns of mixing 4 pairs of utmost points of device formation, mixing effect can clean solidification front, can go deep into againLiquid core.
These are only preferred embodiment of the present utility model, be not intended to limit the protection model of utility modelEnclose, therefore, all any amendments of doing within spirit of the present utility model and principle, be equal to replacement, improveDeng, within being all just included in protection domain of the present utility model.
Claims (9)
1. a square billet split multi-mode EMS device, is characterized in that, by 2 or 4 L shaped electromagnetic agitationDevice (1) connects soon tightening device (2) by self-locking and is formed by connecting;
Described self-locking connects tightening device (2) soon, comprises and is welded in respectively L shaped electromagnetic mixing apparatus (1) two endsAlignment pin (6) and locating hole (7); The outer wall of locating hole (7) is provided with holding screw (9); L shaped electricityWhen magnetic agitating device connects, the alignment pin (6) on a L shaped electromagnetic mixing apparatus inserts another L shaped electromagnetismIn locating hole on agitating device (7), and by advancing the holding screw (9) on locating hole (7) outer wall rightAlignment pin (6) clamps, and realizes quick connection and location between two L shaped electromagnetic mixing apparatus;
Described L shaped electromagnetic mixing apparatus (1) comprises L shaped iron core (3) and is evenly distributed on L shaped iron core (3)Multiple coils (4);
The three phase frequency changing power that every L shaped electromagnetic mixing apparatus connects is independently controlled by respectively PLC and controls singleUnit.
2. square billet split multi-mode EMS device according to claim 1, is characterized in that, described fixedThe side of position pin (6) is provided with relative groove with the inner side of the outer wall of locating hole (7); Described locating hole (7)The groove of outer wall inner side in be provided with chock (8); The width of chock (8) and alignment pin (6) side recessedWell width is identical; On the screw rod of holding screw (9), segmentation is provided with left hand thread and right-handed thread, holding screw(9) screw rod is successively through through hole, left hand thread and wedge on outer wall and the chock (8) of locating hole (7)Son (8) is threaded, and right-handed thread is connected with the outer wall thread of locating hole (7).
3. square billet split multi-mode EMS device according to claim 1, is characterized in that described LShape iron core (3), is folded and is formed by silicon steel laminations;
Described coil (4) is the winding coil of Gramer's form;
The coil number of L shaped electromagnetic mixing apparatus (1) is 2～18.
4. square billet split multi-mode EMS device according to claim 1, is characterized in that described LNon-working surface between shape iron core (3) and coil (4) is provided with magnetic shielding device (5), outside agitatorThe leakage field that encloses non-working surface shields.
5. square billet split multi-mode EMS device according to claim 1, is characterized in that described sideBase split multi-mode EMS device, connects tightening device by 2 L shaped electromagnetic mixing apparatus (1) soon by self-locking(2) be formed by connecting;
Each L shaped electromagnetic mixing apparatus (1) comprises 6 coils, and 6 coils are uniformly distributed on L shaped iron core 3,Be designated as respectively along clockwise direction coil 1., 2., 3., 4., 5. and 6.; Coil 1. and 4. series connection is a phase lineCircle, coil 2. and 5. series connection is a phase coil, coil 3. and 6. series connection is a phase coil;
Three of respectively with one three phase frequency changing power of head end of the three-phase coil of a L shaped electromagnetic mixing apparatus joinsTerminal connects, and the end of three-phase coil connects together and forms public asterism;
The three phase frequency changing power that each L shaped electromagnetic mixing apparatus connects is independently controlled by respectively PLC and controls singleUnit, on each L shaped electromagnetic mixing apparatus, the current phase of three-phase coil is independently controlled by respectively PLC control listUnit.
6. square billet split multi-mode EMS device according to claim 5, is characterized in that 2 LThe phase place of shape electromagnetic mixing apparatus interior loop 4 electric currents is: the electric current of three-phase coil on 2 L shaped electromagnetic mixing apparatusPhase sequence is identical, is respectively in the direction of the clock U, V and W.
7. square billet split multi-mode EMS device according to claim 5, is characterized in that 2 LThe phase place of shape electromagnetic mixing apparatus interior loop 4 electric currents is: the electric current of three-phase coil on a L shaped electromagnetic mixing apparatusPhase sequence is U, V and W in the direction of the clock; On another L shaped electromagnetic mixing apparatus, the electric current phase sequence of three-phase coil is pressedBe clockwise-U ,-V ,-W.
8. square billet split multi-mode EMS device according to claim 5, is characterized in that 2 LThe phase place of shape electromagnetic mixing apparatus interior loop 4 electric currents is: the electric current of three-phase coil on a L shaped electromagnetic mixing apparatusPhase sequence is U, V and W in the direction of the clock; On another L shaped electromagnetic mixing apparatus, the electric current phase sequence of three-phase coil is pressedBe W, U, V clockwise.
9. square billet split multi-mode EMS device according to claim 5, is characterized in that 2 LThe phase place of shape electromagnetic mixing apparatus interior loop 4 electric currents is: the electricity of three-phase coil on a L shaped electromagnetic mixing apparatusStream phase sequence is U, V and W in the direction of the clock; The electric current of three-phase coil on another L shaped electromagnetic mixing apparatusBe respectively in the direction of the clock-W of phase sequence ,-U ,-V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620028376.8U CN205254062U (en) | 2016-01-04 | 2016-01-04 | Square billet components of a whole that can function independently multi -mode electromagnetic agitator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620028376.8U CN205254062U (en) | 2016-01-04 | 2016-01-04 | Square billet components of a whole that can function independently multi -mode electromagnetic agitator |
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| Publication Number | Publication Date |
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| CN205254062U true CN205254062U (en) | 2016-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620028376.8U Withdrawn - After Issue CN205254062U (en) | 2016-01-04 | 2016-01-04 | Square billet components of a whole that can function independently multi -mode electromagnetic agitator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105458199A (en) * | 2016-01-04 | 2016-04-06 | 湖南中科电气股份有限公司 | Square billet split multi-mode electromagnetic stirrer and control method thereof |
-
2016
- 2016-01-04 CN CN201620028376.8U patent/CN205254062U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105458199A (en) * | 2016-01-04 | 2016-04-06 | 湖南中科电气股份有限公司 | Square billet split multi-mode electromagnetic stirrer and control method thereof |
| CN105458199B (en) * | 2016-01-04 | 2016-12-14 | 湖南中科电气股份有限公司 | Square billet split multi-mode EMS device and control method thereof |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160525 Effective date of abandoning: 20161214 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20160525 Effective date of abandoning: 20161214 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |