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1. WO1990014742 - INDUCTION FURNACE FOR HEATING AND TEMPERATURE HOMOGENIZATION IN HOT-ROLLING OF THIN STEEL STRIPS

Publication Number WO/1990/014742
Publication Date 29.11.1990
International Application No. PCT/IT1990/000053
International Filing Date 17.05.1990
Chapter 2 Demand Filed 19.12.1990
IPC
C21D 9/60 2006.01
CCHEMISTRY; METALLURGY
21METALLURGY OF IRON
DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING, OR OTHER TREATMENTS
9Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
52for wires; for strips
54Furnaces for treating strips or wire
56Continuous furnaces for strip or wire
60with induction heating
H05B 6/02 2006.01
HELECTRICITY
05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
BELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
6Heating by electric, magnetic, or electromagnetic fields
02Induction heating
H05B 6/36 2006.01
HELECTRICITY
05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
BELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
6Heating by electric, magnetic, or electromagnetic fields
02Induction heating
36Coil arrangements
CPC
C21D 9/60
CCHEMISTRY; METALLURGY
21METALLURGY OF IRON
DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHER TREATMENTS
9Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
52for wires; for strips ; ; for rods of unlimited length
54Furnaces for treating strips or wire
56Continuous furnaces for strip or wire
60with induction heating
H05B 6/365
HELECTRICITY
05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
BELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
6Heating by electric, magnetic, or electromagnetic fields
02Induction heating
36Coil arrangements
365using supplementary conductive or ferromagnetic pieces
Y02P 10/25
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
10Technologies related to metal processing
20Process efficiency
25by increasing the energy efficiency of the process
Applicants
  • ARVEDI, Giovanni [IT]/[IT]
  • GOSIO, Giovanni [IT]/[IT] (UsOnly)
Inventors
  • ARVEDI, Giovanni
  • GOSIO, Giovanni
Agents
  • ADORNO, Silvano
Priority Data
20534 A/8917.05.1989IT
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) INDUCTION FURNACE FOR HEATING AND TEMPERATURE HOMOGENIZATION IN HOT-ROLLING OF THIN STEEL STRIPS
(FR) FOUR A INDUCTION POUR LE CHAUFFAGE ET L'HOMOGENEISATION DE LA TEMPERATURE LORS DU LAMINAGE A CHAUD DE BANDES MINCES EN ACIER
Abstract
(EN)
An induction furnace is described which is capable to heat a thin strip from a continuous casting apparatus throughout the furnace itself after a previous rolling, at a homogeneous temperature adapted to the subsequent rolling steps. The induction furnace of the present invention comprises, in a known manner, an array of toroidal coils being fed at M.F., with intermediate feeding rollers having reduced size along the strip feed direction with respect to the known coils so that the rollers are less spaced from each other. Flux concentrators are also provided, being distributed preferably in pairs on the inductor and mounted transversely movable with respect to the strip forward movement and possibly also in a plane perpendicular thereto.
(FR)
L'invention concerne un four à induction pouvant chauffer une bande mince provenant d'un appareil de coulée continue après un laminage préalable. Le chauffage s'effectue partout dans le four à une température homogène adaptée pour les étapes de laminage ultérieures. Ledit four comprend, de manière connue, un arrangement de bobines toroïdales chargées à moyenne fréquence. Des rouleaux d'alimentation intermédiaires présentent une taille réduite par rapport aux bobines connues, dans le sens de l'arrivée des bandes, de sorte que lesdits rouleaux sont moins espacés les uns des autres. On prévoit également des concentrateurs de flux, disposés, par paires de préférence, sur l'inducteur et mobiles transversalement au mouvement d'avance des bandes, et, éventuellement, dans un plan perpendiculaire à ce mouvement.
Also published as
FI910240
NO19910178
RO146748
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