SE466586B - ELECTROMAGNETIC MOVER BEFORE STRING - Google Patents
ELECTROMAGNETIC MOVER BEFORE STRINGInfo
- Publication number
- SE466586B SE466586B SE8804423A SE8804423A SE466586B SE 466586 B SE466586 B SE 466586B SE 8804423 A SE8804423 A SE 8804423A SE 8804423 A SE8804423 A SE 8804423A SE 466586 B SE466586 B SE 466586B
- Authority
- SE
- Sweden
- Prior art keywords
- iron core
- damping plate
- coils
- agitator according
- closed
- Prior art date
Links
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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Description
"4ee see som Spolarna kan anordnas omgivande järnkärnan, eventuellt även dämpplàten, och matas från en tvà-, tre- eller flerfasig växelströmskälla. "4ee see as the Coils can be arranged around the iron core, possibly also the damping plate, and fed from a two-, three- or multi-phase AC power source.
Uppfinningen kan appliceras på stränggjutningsanläggningar för billets och blooms (från 60 mm i kvadrat upp till cirka #00 x 600 mm), frekvens 2-20 Hz.The invention can be applied to continuous casting systems for billets and blooms (from 60 mm square up to about # 00 x 600 mm), frequency 2-20 Hz.
Dämpplåten bör vara minst 1/3 inträngningsdjup tjock, där där P är resistivitet, w = 2nf (vinkelfrekvens) och yr - yo permea- bilitet. Material i dämpplåten är koppar, silver eller legering av någon av dessa metaller.The damping plate should be at least 1/3 penetration depth thick, where where P is resistivity, w = 2nf (angular frequency) and yr - yo permeability. Materials in the damping plate are copper, silver or alloy of any of these metals.
Uppfinningen är närmare exemplifierad i bifogade figurer, där fig 1 visar en rund kokillomrörare och fig 2 en rektangulär. Fig 3 är ett alternativ till fig 1.The invention is further exemplified in the accompanying figures, where Fig. 1 shows a round mold stirrer and Fig. 2 a rectangular one. Fig. 3 is an alternative to Fig. 1.
I fig 1 visas en trefasmatad (R, S, T) cirkulär omrörare för horisontell omröring av gjutsträng vid kokillen.Fig. 1 shows a three-phase (R, S, T) circular stirrer for horizontal stirring of casting strand at the mold.
Spolarna är parvis motkopplade (R- och R+, S- och S+ och T- och T+), se bland annat vid 1 (R+), och det magnetiska fältets riktning visas vid pilarna i järnkärnan 2, som här är odelat cirkulär, men den kan även vara utformad med avbrott.The coils are paired opposite (R- and R +, S- and S + and T- and T +), see for example at 1 (R +), and the direction of the magnetic field is shown at the arrows in the iron core 2, which here is undividedly circular, but it can also be designed with interruptions.
Spolarna 1 omsluter järnkärnan 2, men kan även omsluta den omgivande dämp- plåten 3.The coils 1 enclose the iron core 2, but can also enclose the surrounding damping plate 3.
Dämpplåten 3 är minst 1/3 6 tjock och utförd i koppar eller silver eller i en legering av någon av dessa metaller. I fig 3 visas hur spolarna har lagts kring såväl järnkärna som dämpplàt. Dämpplåten kan vara försedd med avbrott eller luftspalter så att omröraren kan byggas av flera delomröra- re, vilket bland annat förenklar inmonteringen. Spolarna består som synes i fig 1 av ett antal delspolar 1 (R, S, T + och -). Genom inverkan av dämpplåten 3 dämpas det oönskade fältet från järnkärnan och riktas åter in mot gjutsträngen. 'saab I fig 2 visas en rektangulär omrörare matad tvåfasigt (R+ och Rï,"S+ beh' S-). Järnkärnan 5 är här kvadratisk, men kan även vara rektangulär och kan eventuellt vara försedd med avbrott. En spole har här visats på varje ben av den kvadratiska järnkärnan som omgives av en likaledes kvadratisk dämp- plåt. Även denna kan vara försedd med avbrott och skall vara utförd 1 elektriskt ledande material, såsom silver eller koppar (se ovan).The damping plate 3 is at least 1/3 6 thick and made of copper or silver or in an alloy of any of these metals. Fig. 3 shows how the coils have been laid around both the iron core and the damping plate. The damping plate can be provided with breaks or air gaps so that the stirrer can be built by several sub-stirrers, which, among other things, simplifies installation. As can be seen in Fig. 1, the coils consist of a number of sub-coils 1 (R, S, T + and -). By the action of the damping plate 3, the undesired field is damped from the iron core and directed back towards the casting string. 'saab Fig. 2 shows a rectangular stirrer fed two-phase (R + and Rï, "S + beh' S-). The iron core 5 is square here, but can also be rectangular and may possibly be provided with interruptions. A coil has been shown here on each bones of the square iron core surrounded by a similarly square damping plate, which may also be interrupted and shall be made of electrically conductive material, such as silver or copper (see above).
För rektangulär kokillomrörare enligt fig 2 har här figuren visats med fältet sett i det ögonblick då R-fasen har strömmax och S-fasen strömnoll (9o° fasvinkel) .For rectangular mold stirrers according to Fig. 2, the figure has been shown here with the field seen at the moment when the R-phase has current max and the S-phase current zero (90 ° phase angle).
I fig 3 visas en cirkulär omrörare där spolarna 7 visas omgivande såväl järnkärna 2 som dämpplåt 3. Omrörarna är företrädesvis av spollindat slag men kan givetvis även utformas med annan lindning.Fig. 3 shows a circular stirrer where the coils 7 are shown surrounding both the iron core 2 and the damping plate 3. The stirrers are preferably of a coil-wound type but can of course also be designed with another winding.
Omröraren enligt uppfinningen kan varieras på mångahanda sätt inom ramen för nedanstående patentkrav.The stirrer according to the invention can be varied in many ways within the scope of the following claims.
Claims (8)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8804423A SE466586B (en) | 1988-12-07 | 1988-12-07 | ELECTROMAGNETIC MOVER BEFORE STRING |
EP19890122320 EP0374563A1 (en) | 1988-12-07 | 1989-12-04 | Electromagnetic stirrer for continuous casting |
JP31450589A JPH02182358A (en) | 1988-12-07 | 1989-12-05 | Electrmagnetic agitator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8804423A SE466586B (en) | 1988-12-07 | 1988-12-07 | ELECTROMAGNETIC MOVER BEFORE STRING |
Publications (2)
Publication Number | Publication Date |
---|---|
SE8804423L SE8804423L (en) | 1990-06-08 |
SE466586B true SE466586B (en) | 1992-03-09 |
Family
ID=20374169
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8804423A SE466586B (en) | 1988-12-07 | 1988-12-07 | ELECTROMAGNETIC MOVER BEFORE STRING |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0374563A1 (en) |
JP (1) | JPH02182358A (en) |
SE (1) | SE466586B (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06182512A (en) * | 1992-12-17 | 1994-07-05 | Kobe Steel Ltd | Electromagnetic stirrer in mold |
CN100450668C (en) * | 2006-07-07 | 2009-01-14 | 湖南中科电气股份有限公司 | Electromagnetic mixing roller of two cool areas of highfield unburnt earthenware |
WO2011057426A1 (en) * | 2009-11-12 | 2011-05-19 | 湖南中科电气股份有限公司 | Electromagnetic stirring roller with high magnetic field for secondary cooling region of plate blank |
CN112689543B (en) * | 2018-09-10 | 2023-07-25 | 麦角灵实验室公司 | Electromagnetic stirring device, stirring method, mould and casting machine for casting aluminium or aluminium alloy in mould |
JP7523802B2 (en) * | 2021-05-27 | 2024-07-29 | 株式会社ヂーマグ | Molten metal stirring device and continuous casting system |
JP2023026973A (en) | 2021-08-16 | 2023-03-01 | 株式会社ヂーマグ | Molten metal driving device, molten metal stirring system, molten metal conveyance system, continuous casting system, and molten metal driving method |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA571943A (en) * | 1953-08-11 | 1959-03-10 | Dreyfus Ludwig | Polyphase stirring winding |
FR2355392A1 (en) * | 1976-06-14 | 1978-01-13 | Cem Comp Electro Mec | ELECTROMAGNETIC CENTRIFUGATION INDUCER ESPECIALLY FOR CONTINUOUS CASTING LINGOTIER |
-
1988
- 1988-12-07 SE SE8804423A patent/SE466586B/en not_active IP Right Cessation
-
1989
- 1989-12-04 EP EP19890122320 patent/EP0374563A1/en not_active Withdrawn
- 1989-12-05 JP JP31450589A patent/JPH02182358A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
SE8804423L (en) | 1990-06-08 |
EP0374563A1 (en) | 1990-06-27 |
JPH02182358A (en) | 1990-07-17 |
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Legal Events
Date | Code | Title | Description |
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NUG | Patent has lapsed |
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