EP0028369A1 - Dispositif pour le brassage de métaux en fusion dans les installations de coulée continue - Google Patents

Dispositif pour le brassage de métaux en fusion dans les installations de coulée continue Download PDF

Info

Publication number: EP0028369A1
Authority: EP; European Patent Office
Prior art keywords: strand; string; yoke; guide rollers; magnetic
Prior art date: 1979-11-06
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Granted

Application number

EP80106491A

Other languages

German (de)

English (en)

Other versions

EP0028369B1 (fr

Inventor

Wolfgang Dipl.-Ing. Meyer

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Siemens AG

Siemens Corp

Original Assignee

Siemens AG

Siemens Corp

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1979-11-06

Filing date

1980-10-23

Publication date

1981-05-13

1980-10-23 Application filed by Siemens AG, Siemens Corp filed Critical Siemens AG

1980-10-23 Priority to AT80106491T priority Critical patent/ATE5302T1/de

1981-05-13 Publication of EP0028369A1 publication Critical patent/EP0028369A1/fr

1983-11-16 Application granted granted Critical

1983-11-16 Publication of EP0028369B1 publication Critical patent/EP0028369B1/fr

Status Expired legal-status Critical Current

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
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/122—Accessories for subsequent treating or working cast stock in situ using magnetic fields

Definitions

the invention relates to a device for stirring metallic melts in continuous casting plants during the solidification process by means of a DC magnetic field which passes through the strand guided between rollers perpendicular to its direction of movement and which cuts a direct current also passed through the strand perpendicular to the direction of movement, the yoke one of which
the electromagnet generating the same field is arranged on one broad side of the strand outside the guide rollers and the magnetic poles are each equipped with a pole shoe encompassing at least one of the guide rollers, while a yoke anchor is located on the other broad side of the strand is arranged with appropriately trained poles and contact brushes or contact rollers which can be pressed directly onto the strand surface are provided for supplying the direct current.
the electromagnetically generated flow of the still liquid melt in the interior of the strand and the flow based on convection result in a main flow field which is asymmetrical to the strand axis. This results in asymmetries in the strand structure.
iron parts which are symmetrical to the axis of the magnet arrangement and are connected to one another in a magnetically conductive manner, for example the carriers of the guide rollers, can promote the formation of strong stray fields.
the invention has for its object to symmetrize the flow field with respect to the strand axis and to eliminate the disruptive influence of iron parts.
this object is achieved in that two magnet systems are arranged on the yoke of the electromagnet, the excitation windings of which generate oppositely directed magnetic fields.
the opposing magnetic fields create a main flow in the direction of and symmetrical to the longitudinal axis of the strand.
Iron parts running symmetrically to the longitudinal axis of the strand are magnetically at the same potential, so that a magnetic compensating flux does not occur.
FIG. 1 shows a horizontal section through a strand 1 in the region of a continuous casting installation in which the core 2 of the strand supported by guide rollers 3 on both broad sides is still liquid.
an electromagnet 4 with a yoke armature 5 is arranged in this area.
the yoke 6 of the electromagnet carries two excitation coils 7 wound in opposite directions, which generate magnetic fields directed in opposite directions.
the two adjacent poles of the same name of the two magnet systems formed in this way are combined in a common leg 8.
this leg branches into two pole shoes 9, the mutual spacing of which is adapted to the diameter of at least one of the guide rollers and which each embrace at least one of the guide rollers 3.
the middle leg 10 of the remindschluBankers ends in two pole shoes 11.
the contact rollers or brushes to be arranged on the narrow sides of the strand for supplying the direct current, which produces the stirring effect in connection with the magnetic fields, are not shown in FIG. 1. Due to the opposing magnetic fields of the electromagnet, partial flows are formed in the still liquid core of the strand, which are in the area of the middle leg 8 to form a main flow, for example indicated by the plus signs, emerging from the plane of the drawing and indicated by the minus signs and penetrating the plane of the drawing from above. This main flow is therefore symmetrical to the longitudinal axis of the line.
the magnetic field is adapted to the bulging of the streamlines in the middle of the strand. This significantly improves the efficiency of the stirring device.
the guide rollers 3 located in the area of influence of the electromagnetic system are expediently made of non-magnetic material, so that the magnetic field lines emanating from the pole pieces can penetrate the strand unaffected.
the carriers 16 of the guide rollers which are arranged symmetrically to the longitudinal axis of the strand and are connected to one another via the main frame, are magnetically at the same potential due to the opposing magnetic fields. As a result, there is no additional leakage flux.

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Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Continuous Casting (AREA)

EP80106491A 1979-11-06 1980-10-23 Dispositif pour le brassage de métaux en fusion dans les installations de coulée continue Expired EP0028369B1 (fr)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
AT80106491T ATE5302T1 (de)	1979-11-06	1980-10-23	Einrichtung zum umruehren von metallischen schmelzen in stranggiessanlagen.

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE19792944760 DE2944760A1 (de)	1979-11-06	1979-11-06	Einrichtung zum umruehren von metallischen schmelzen in stranggiessanlagen
DE2944760		1979-11-06

Publications (2)

Publication Number	Publication Date
EP0028369A1 true EP0028369A1 (fr)	1981-05-13
EP0028369B1 EP0028369B1 (fr)	1983-11-16

Family

ID=6085267

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP80106491A Expired EP0028369B1 (fr)	1979-11-06	1980-10-23	Dispositif pour le brassage de métaux en fusion dans les installations de coulée continue

Country Status (4)

Country	Link
EP (1)	EP0028369B1 (fr)
JP (1)	JPS6031585B2 (fr)
AT (1)	ATE5302T1 (fr)
DE (2)	DE2944760A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0092126B1 (fr) *	1982-04-19	1986-03-26	Asea Ab	Procédé pour le brassage des zones non-solidifiées dans une billette de coulée
US4867786A (en) *	1987-05-19	1989-09-19	Sumitomo Metal Industries, Ltd.	Electromagnetic stirring method
CN106166603A (zh) *	2016-08-29	2016-11-30	中国重型机械研究院股份公司	有色轻金属连续铸造扁锭诱导装置
AT519029A1 (de) *	2016-08-31	2018-03-15	Primetals Technologies Austria GmbH	Rührspulenanordnung in einer Stranggießanlage
CN111844589A (zh) *	2020-07-08	2020-10-30	海宁埃尔佳鞋业有限公司	一种制鞋用的注胶防滴落装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
LU85846A1 (fr) *	1985-04-10	1986-11-05	Metz Paul	Dispositif de brassage de metal en fusion dans une installation de coulee continue

Citations (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE1803473A1 (de) *	1968-10-17	1970-05-21	Demag Ag	Verfahren und Einrichtung zum Metall-,insbesondere Stahl-Stranggiessen
DE1583601A1 (de) *	1967-07-05	1970-09-17	Demag Elektrometallurgie Gmbh	Verfahren und Vorrichtung zum Kuehlen eines schmelzfluessigen Metallstranges
DE2328898A1 (de) *	1972-06-08	1973-12-20	Cem Comp Electro Mec	Vorrichtung zum kontinuierlichen giessen von laenglichen koerpern
DE2720391A1 (de) *	1976-05-21	1977-12-01	Asea Ab	Anordnung beim stranggiessen
DE2757342A1 (de) *	1977-12-22	1979-07-05	Licentia Gmbh	Verfahren zum elektrodynamischen ruehren des sumpfes einer ein metallisches stuetzrollengeruest durchlaufenden metallbramme ausserhalb der giesskokille
DE2827240A1 (de) *	1978-06-21	1980-01-03	Siemens Ag	Einrichtung zum umruehren von metallischen schmelzen in stranggiessanlagen
EP0019118A1 (fr) *	1979-05-09	1980-11-26	Siemens Aktiengesellschaft	Dispositif pour brasser des fontes métalliques dans des installations de coulée continue

1979
- 1979-11-06 DE DE19792944760 patent/DE2944760A1/de not_active Withdrawn
1980
- 1980-10-23 DE DE8080106491T patent/DE3065631D1/de not_active Expired
- 1980-10-23 EP EP80106491A patent/EP0028369B1/fr not_active Expired
- 1980-10-23 AT AT80106491T patent/ATE5302T1/de not_active IP Right Cessation
- 1980-11-06 JP JP55156433A patent/JPS6031585B2/ja not_active Expired

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE1583601A1 (de) *	1967-07-05	1970-09-17	Demag Elektrometallurgie Gmbh	Verfahren und Vorrichtung zum Kuehlen eines schmelzfluessigen Metallstranges
DE1803473A1 (de) *	1968-10-17	1970-05-21	Demag Ag	Verfahren und Einrichtung zum Metall-,insbesondere Stahl-Stranggiessen
DE2328898A1 (de) *	1972-06-08	1973-12-20	Cem Comp Electro Mec	Vorrichtung zum kontinuierlichen giessen von laenglichen koerpern
DE2720391A1 (de) *	1976-05-21	1977-12-01	Asea Ab	Anordnung beim stranggiessen
DE2757342A1 (de) *	1977-12-22	1979-07-05	Licentia Gmbh	Verfahren zum elektrodynamischen ruehren des sumpfes einer ein metallisches stuetzrollengeruest durchlaufenden metallbramme ausserhalb der giesskokille
DE2827240A1 (de) *	1978-06-21	1980-01-03	Siemens Ag	Einrichtung zum umruehren von metallischen schmelzen in stranggiessanlagen
EP0019118A1 (fr) *	1979-05-09	1980-11-26	Siemens Aktiengesellschaft	Dispositif pour brasser des fontes métalliques dans des installations de coulée continue

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0092126B1 (fr) *	1982-04-19	1986-03-26	Asea Ab	Procédé pour le brassage des zones non-solidifiées dans une billette de coulée
US4867786A (en) *	1987-05-19	1989-09-19	Sumitomo Metal Industries, Ltd.	Electromagnetic stirring method
CN106166603A (zh) *	2016-08-29	2016-11-30	中国重型机械研究院股份公司	有色轻金属连续铸造扁锭诱导装置
CN106166603B (zh) *	2016-08-29	2018-06-19	中国重型机械研究院股份公司	有色轻金属连续铸造扁锭诱导装置
AT519029A1 (de) *	2016-08-31	2018-03-15	Primetals Technologies Austria GmbH	Rührspulenanordnung in einer Stranggießanlage
AT519029B1 (de) *	2016-08-31	2019-10-15	Primetals Technologies Austria GmbH	Rührspulenanordnung in einer Stranggießanlage
CN111844589A (zh) *	2020-07-08	2020-10-30	海宁埃尔佳鞋业有限公司	一种制鞋用的注胶防滴落装置
CN111844589B (zh) *	2020-07-08	2021-12-07	海宁埃尔佳鞋业有限公司	一种制鞋用的注胶防滴落装置

Also Published As

Publication number	Publication date
JPS5674359A (en)	1981-06-19
DE2944760A1 (de)	1981-05-07
DE3065631D1 (en)	1983-12-22
JPS6031585B2 (ja)	1985-07-23
EP0028369B1 (fr)	1983-11-16
ATE5302T1 (de)	1983-12-15

Publication	Publication Date	Title
DE3239345A1 (de)	1984-04-26	Betaetigungsmagnet
EP0028369A1 (fr)	1981-05-13	Dispositif pour le brassage de métaux en fusion dans les installations de coulée continue
DE2850783C2 (de)	1987-03-12	Verfahren zum Steuern der Überzugsdicke von mit flüssigen metallbeschichteten Metallsubstraten und Vorrichtung zur Durchführung dieses Verfahrens
DE69201466T2 (de)	1995-07-27	Methode zum Kontrollieren des Beschichtungsgewichts eines heissmetallisierten Stahlbandes.
EP0019118B1 (fr)	1983-05-25	Dispositif pour brasser des fontes métalliques dans des installations de coulée continue
DE3322891A1 (de)	1985-01-03	Einrichtung zum elektrodynamischen ruehren des sumpfes einer metallbramme
DE2238402C2 (de)	1983-01-13	Spurgebundenes berührungsfrei bewegtes Fahrzeug mit einem mit einem Spurführungsteil zusammenwirkenden Erregerteil am Fahrzeug
DE2827240A1 (de)	1980-01-03	Einrichtung zum umruehren von metallischen schmelzen in stranggiessanlagen
DE2811160C2 (de)	1983-09-15	System zum berührungsfreien Tragen und Führen eines Magnetschwebefahrzeuges
DE2757342C2 (de)	1983-02-24	Anordnung zum elektrodynamischen Führen des flüssigen Sumpfes einer Metallbramme
EP0015301B1 (fr)	1983-02-16	Procédé et dispositif de brassage électromagnétique du cratère liquide d'une brame métallique sortant de la lingotière et passant entre les rouleaux d'un corset de guidage
DE2756623A1 (de)	1979-06-21	Vorrichtung an stranggussanlagen zum elektromagnetischen ruehren der erstarrenden stranggussmasse
DE3517733A1 (de)	1986-11-20	Verfahren bzw. einrichtung zum stranggiessen insbesondere von schwermetallen mittels den strangquerschnitt formenden magnetfeldern
DE2912539A1 (de)	1980-10-09	Vorrichtung zum elektrodynamischen ruehren des sumpfes in einer stranggegossenen erstarrenden metallbramme
DE3218288A1 (de)	1983-11-17	Verfahren zum elektromagnetischen ruehren des fluessigen kerns eines gussstranges
DE2403287A1 (de)	1975-08-07	Elektromagnet
WO1988005353A1 (fr)	1988-07-28	Procede et dispositif pour ringarder magnetiquement des barres de metal
DE2553306A1 (de)	1977-06-08	Verfahren und vorrichtung zum dauermagnetisieren von teilen aus ferromagnetischem material mit einem vorgegebenen magnetbild
DE706472C (de)	1941-05-27	Magnetsystem fuer elektrische Drehspulinstrumente aus einem Weicheisenring mit im Innern desselben angeordneten Dauermagneten hoher Koerzitivkraft
DE2500321C2 (de)	1984-06-20	Vorrichtung zur Erzeugung eines sich in einer Ebene drehenden Magnetfelds, insbesondere zum magnetischen Ausrichten optisch wirksamer Teilchen in einem Aufzeichnungsträger
DE582738C (de)	1933-08-22	Aus mehreren Teilen zusammengesetztes Spannungstriebsystem fuer Induktionszaehler
DE69506225T2 (de)	1999-04-29	Elektromagnetisches Zurückhalten von Schmelze mittels Stromerregung
CH641703A5 (en)	1984-03-15	Method for stirring the unsolidified regions of a cast strand
DE10215057B4 (de)	2011-06-30	Vorrichtung zur Schmelztauchbeschichtung von Metallsträngen und Verfahren hierzu
DE885285C (de)	1953-08-03	Rueckschlussteil fuer ein Triebsystem eines Induktionszaehlers

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1981-03-14	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
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