EP0266470B1 - Induktor und Induktionserwärmungsanlage der Ränder eines metallurgischen Produktes - Google Patents

Induktor und Induktionserwärmungsanlage der Ränder eines metallurgischen Produktes Download PDF

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Publication number
EP0266470B1
EP0266470B1 EP86440097A EP86440097A EP0266470B1 EP 0266470 B1 EP0266470 B1 EP 0266470B1 EP 86440097 A EP86440097 A EP 86440097A EP 86440097 A EP86440097 A EP 86440097A EP 0266470 B1 EP0266470 B1 EP 0266470B1
Authority
EP
European Patent Office
Prior art keywords
poles
axis
edges
product
inductor
Prior art date
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.)
Expired - Lifetime
Application number
EP86440097A
Other languages
English (en)
French (fr)
Other versions
EP0266470A1 (de
Inventor
Philippe Georges
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.)
Rotelec SA
Original Assignee
Rotelec SA
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.)
Filing date
Publication date
Priority to FR8517193A priority Critical patent/FR2590434A1/fr
Priority to EP86440042A priority patent/EP0206963B1/de
Application filed by Rotelec SA filed Critical Rotelec SA
Priority to ES198686440097T priority patent/ES2029997T3/es
Priority to AT86440097T priority patent/ATE73599T1/de
Priority to DE8686440097T priority patent/DE3684323D1/de
Priority to EP86440097A priority patent/EP0266470B1/de
Publication of EP0266470A1 publication Critical patent/EP0266470A1/de
Application granted granted Critical
Publication of EP0266470B1 publication Critical patent/EP0266470B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
    • H05B6/101—Induction heating apparatus, other than furnaces, for specific applications for local heating of metal pieces
    • H05B6/102—Induction heating apparatus, other than furnaces, for specific applications for local heating of metal pieces the metal pieces being rotated while induction heated
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
    • H05B6/101—Induction heating apparatus, other than furnaces, for specific applications for local heating of metal pieces
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/36—Coil arrangements
    • H05B6/365—Coil arrangements using supplementary conductive or ferromagnetic pieces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/004—Heating the product

Definitions

  • the invention relates to the inductive heating of the edges of a metallurgical product.
  • the thermal deficit or average temperature difference in the thickness of a slab, between the center and the banks can be of the order of 120 ° C at the outlet of continuous casting, due to the preferential cooling of the banks ( fin effect).
  • the patent document US-A-2,010,622 discloses an inductive heating device for a car crankcase.
  • the cylinder head of this device comprises two movable arms which can be applied against this casing, and a central part, which is also brought closer to the casing to be heated.
  • Two induction coils arranged on either side of this central part of the cylinder head create two partial flows in the two arms which close through the casing on said central part.
  • the object of the invention is to propose a new type of inductor more efficient than known inductors, for reheating the edges of metallurgical products, such as continuous casting slabs.
  • the device for inductive heating of the edges of a moving metallurgical product in accordance with the invention comprises an inductor which consists of an E-shaped cylinder head with wound poles, having two extreme poles aligned on a first axis and facing each other at a distance so as to define between aux an air gap, and a median pole oriented along a second axis perpendicular to the first axis and recessed with respect to the two extreme poles so as not to not encroach on said air gap, the windings of the three poles being arranged so that, in operation, the sum of the fluxes entering or leaving both by the extreme poles is equal to the flux leaving or entering by the middle pole.
  • the inductors are installed so that the path of the edges intersects the air gap of said inductors, the extreme poles being oriented in the direction of the thickness of the product.
  • a magnetic yoke 4 which, in the heating position, has the shape of the capital letter E, in the sense that it defines three poles 5, 6, 7 converging towards the banks 1 of the slab and respectively provided with coils 8, 9, 10.
  • the middle pole 5 is oriented in the width direction of the slab 2 (axis 13), while the extreme poles 6 and 7 are oriented in the thickness direction (axis 14) and is face distance so as to define between them, when empty (that is to say in the absence of product to be heated) an air gap in which a bank of the product to be heated will pass.
  • the extension of the middle pole 5 from its location on the main branch of the cylinder head is such that this pole remains recessed with respect to the extreme poles 6 and 7 so as not to encroach on the air gap.
  • the coils 8, 9, 10 are connected in accordance with the diagram in FIG. 2 so that the intensity of the current flowing in the coil 8 of the middle pole is equal to the sum of the intensities flowing in the coils 9 and 10 of the opposite poles, which intensities are in principle equal. Under these conditions, if the coils have the same number of turns, and if the direction of each winding is appropriate, the incoming flow from the middle pole 5 is equal to the sum of the outgoing flows from poles 6 and 7, and the lines of induction pass through the edge of the slab as shown by the arrows 11, producing the desired local heating.
  • the frequency of supply of the inductors is close to 300 HZ.
  • the inductors 3 are supported by chassis (not shown) making it possible to move them transversely (in the direction of the arrows 12 and in the opposite direction) so as to be able to adapt the position of the inductors to different widths of product.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Induction Heating (AREA)

Claims (2)

  1. Einrichtung zum induktiven Erwärmen der Ränder (1) eines durchlaufenden metallurgischen Produktes (2), die Induktoren aufweist, dadurch gekennzeichnet, daß jeder Induktor (3) aus einem E-förmigen Joch (4) mit drei je eine Spule tragenden Polen besteht, wobei zwei äußere Pole (6, 7) entlang einer ersten Achse (14) fluchtend und sich im Abstand so gegenüberstehend angeordnet sind, daß sie einen Luftspalt zwischen sich bilden, und daß ein mittlerer, in Richtung einer zweiten, zur ersten Achse (14) senkrecht stehenden Achse (13) orientierter Pol (5) relativ zu den beiden äußeren Polen zurückgesetzt angeordnet ist, um nicht in den Bereich des Luftspalts zu gelangen, wobei die Spulen (8, 9, 10) der drei Pole so angebracht sind, daß im Betrieb die Summe der in die beiden äußeren Pole (6, 7) eintretenden oder aus ihnen austretenden Flüsse dem aus dem mittleren Pol (5) austretenden oder in ihn eintretenden Fluß entspricht.
  2. Einrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Induktoren (3) auf Trägern montiert sind, die transversal zur Fortbewegungsstruktur des Metallprodukts beweglich sind.
EP86440097A 1985-06-07 1986-11-06 Induktor und Induktionserwärmungsanlage der Ränder eines metallurgischen Produktes Expired - Lifetime EP0266470B1 (de)

Priority Applications (6)

Application Number Priority Date Filing Date Title
FR8517193A FR2590434A1 (fr) 1985-11-20 1985-11-20 Inducteur et dispositif de rechauffage inductif de rives d'un produit metallurgique
EP86440042A EP0206963B1 (de) 1985-06-07 1986-06-02 Induktor mit variablem Luftspalt zur Ränderinduktionswärmung eines metallurgischen Produktes
ES198686440097T ES2029997T3 (es) 1985-11-20 1986-11-06 Inductor y dispositivo de recalentamiento inductivo de bordes de un producto metalurgico.
AT86440097T ATE73599T1 (de) 1985-11-20 1986-11-06 Induktor und induktionserwaermungsanlage der raender eines metallurgischen produktes.
DE8686440097T DE3684323D1 (de) 1985-11-20 1986-11-06 Induktor und induktionserwaermungsanlage der raender eines metallurgischen produktes.
EP86440097A EP0266470B1 (de) 1985-11-20 1986-11-06 Induktor und Induktionserwärmungsanlage der Ränder eines metallurgischen Produktes

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8517193A FR2590434A1 (fr) 1985-11-20 1985-11-20 Inducteur et dispositif de rechauffage inductif de rives d'un produit metallurgique
EP86440097A EP0266470B1 (de) 1985-11-20 1986-11-06 Induktor und Induktionserwärmungsanlage der Ränder eines metallurgischen Produktes

Publications (2)

Publication Number Publication Date
EP0266470A1 EP0266470A1 (de) 1988-05-11
EP0266470B1 true EP0266470B1 (de) 1992-03-11

Family

ID=9325012

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86440097A Expired - Lifetime EP0266470B1 (de) 1985-06-07 1986-11-06 Induktor und Induktionserwärmungsanlage der Ränder eines metallurgischen Produktes

Country Status (6)

Country Link
EP (1) EP0266470B1 (de)
JP (1) JPS6324584A (de)
AT (1) ATE73599T1 (de)
DE (1) DE3684323D1 (de)
ES (1) ES2029997T3 (de)
FR (1) FR2590434A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190133965A (ko) * 2018-05-24 2019-12-04 주식회사 다원시스 유도가열장치

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2590434A1 (fr) * 1985-11-20 1987-05-22 Siderurgie Fse Inst Rech Inducteur et dispositif de rechauffage inductif de rives d'un produit metallurgique
FR2661849B1 (fr) * 1990-05-10 1995-03-17 Siderurgie Fse Inst Rech Procede et dispositifs de rechauffage par induction au defile d'un produit metallurgique de forme allongee.
US5841023A (en) * 1993-08-31 1998-11-24 Boehringer Mannheim Corporation Magnet for medical instrument
PL2020160T3 (pl) * 2006-04-24 2018-01-31 Inductoheat Inc Obróbka cieplna przez indukcję elektryczną końca materiału rurowego
DE102007051144B4 (de) * 2007-07-26 2010-06-02 Zenergy Power Gmbh Induktionsheizer und Verfahren zum Verstellen der Breite der Schächte eines derartigen Induktionsheizers
FR3035766B1 (fr) * 2015-04-29 2019-10-11 Sncf Mobilites Dispositif de chauffage par induction de pieces metalliques et vehicule ferroviaire comprenant un tel dispositif
DE102015112293A1 (de) * 2015-07-28 2017-02-02 Hydro Aluminium Rolled Products Gmbh Verfahren und Vorrichtung zur planheitsadaptiven Temperaturänderung von Metallbändern
IT201700020203A1 (it) * 2017-02-22 2018-08-22 Rotelec Sa Apparato di riscaldamento per prodotti metallici

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0206963A1 (de) * 1985-06-07 1986-12-30 Institut De Recherches De La Siderurgie Francaise (Irsid) Induktor mit variablem Luftspalt zur Ränderinduktionswärmung eines metallurgischen Produktes

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2010622A (en) * 1933-03-20 1935-08-06 Ray A Brown Housing heater
FR2118330A5 (de) * 1970-12-17 1972-07-28 Westinghouse Electric Corp
US3663782A (en) * 1971-06-10 1972-05-16 United States Steel Corp Laminated iron core induction corner-heating unit
FR2590434A1 (fr) * 1985-11-20 1987-05-22 Siderurgie Fse Inst Rech Inducteur et dispositif de rechauffage inductif de rives d'un produit metallurgique

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0206963A1 (de) * 1985-06-07 1986-12-30 Institut De Recherches De La Siderurgie Francaise (Irsid) Induktor mit variablem Luftspalt zur Ränderinduktionswärmung eines metallurgischen Produktes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190133965A (ko) * 2018-05-24 2019-12-04 주식회사 다원시스 유도가열장치

Also Published As

Publication number Publication date
JPS6324584A (ja) 1988-02-01
FR2590434A1 (fr) 1987-05-22
DE3684323D1 (de) 1992-04-16
ES2029997T3 (es) 1992-10-16
EP0266470A1 (de) 1988-05-11
ATE73599T1 (de) 1992-03-15

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