FR2534361A1 - DEVICE AND METHOD FOR ADJUSTING THE HEATING CAPACITY OF A THERMAL INSTALLATION FOR A CONTINUOUSLY CONTINUOUS METAL STRIP - Google Patents
DEVICE AND METHOD FOR ADJUSTING THE HEATING CAPACITY OF A THERMAL INSTALLATION FOR A CONTINUOUSLY CONTINUOUS METAL STRIP Download PDFInfo
- Publication number
- FR2534361A1 FR2534361A1 FR8216756A FR8216756A FR2534361A1 FR 2534361 A1 FR2534361 A1 FR 2534361A1 FR 8216756 A FR8216756 A FR 8216756A FR 8216756 A FR8216756 A FR 8216756A FR 2534361 A1 FR2534361 A1 FR 2534361A1
- Authority
- FR
- France
- Prior art keywords
- heating
- heating capacity
- metal strip
- adjusting
- continuous metal
- 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.)
- Granted
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 20
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 5
- 239000002184 metal Substances 0.000 title claims abstract description 5
- 238000000034 method Methods 0.000 title claims 2
- 238000009434 installation Methods 0.000 title description 8
- 230000006698 induction Effects 0.000 claims abstract description 6
- 229910001297 Zn alloy Inorganic materials 0.000 claims abstract description 3
- 238000005246 galvanizing Methods 0.000 claims abstract description 3
- 238000011144 upstream manufacturing Methods 0.000 claims abstract 2
- 230000000295 complement effect Effects 0.000 claims 1
- 238000005272 metallurgy Methods 0.000 abstract 1
- 150000002739 metals Chemical class 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000004320 controlled atmosphere Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000007363 regulatory process Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/54—Furnaces for treating strips or wire
- C21D9/56—Continuous furnaces for strip or wire
- C21D9/60—Continuous furnaces for strip or wire with induction heating
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/34—Methods of heating
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
- C23C2/022—Pretreatment of the material to be coated, e.g. for coating on selected surface areas by heating
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Coating With Molten Metal (AREA)
Abstract
LA PRESENTE INVENTION CONCERNE UN DISPOSITIF DE CHAUFFAGE D'UN PRODUIT METALLURGIQUE 1 DEFILANT EN CONTINU NOTAMMENT EN AMONT D'UN BAC D'ALLIAGE DE ZINC SUR UNE LIGNE DE GALVANISATION QUI COMPORTE EN COMPLEMENT D'UN MOYEN DE CHAUFFAGE DEJA EXISTANT 2 UN MOYEN DE CHAUFFAGE PAR INDUCTION 3. LE REGLAGE DE LA CAPACITE DE CHAUFFE EST REALISE EN AGISSANT SUR LEDIT MOYEN DE CHAUFFAGE 3 PAR INDUCTION. APPLICATION A LA METALLURGIE DES METAUX EN FEUILLE.THE PRESENT INVENTION CONCERNS A DEVICE FOR HEATING A METALLURGIC PRODUCT 1 CONTINUOUSLY RUNNING IN PARTICULAR UPSTREAM OF A ZINC ALLOY TANK ON A GALVANIZING LINE WHICH INCLUDES IN ADDITION TO AN ALREADY EXISTING HEATING MEANS 2 A MEANS OF INDUCTION HEATING 3. THE HEATING CAPACITY ADJUSTMENT IS CARRIED OUT BY ACTING ON THESE INDUCTION HEATING MEDIA 3. APPLICATION TO THE METALLURGY OF SHEET METALS.
Description
Dis Rositîif et vrocédé de rég&Lae de la capacit de chauffe d'uneSay Rositif and Regulating Process Lae of the heating capacity of a
installation thermique pour bande métallique défilant en continu. thermal installation for continuous metal strip.
La présente invention concerne le chauffage d'une The present invention relates to the heating of a
bande d'acier destinée à Atre galvanisée. steel strip for galvanizing.
La galvanisation nécessite d'élever la température de la bande d'acier au moins au niveau de celle du bain d'alliage de zinc dans laquelle elle passe Cette élévation est assurée classiquement par une installation de fours dans lesquels défile la bande La capacité de ces fours constitue l'un des paramètres The galvanization requires raising the temperature of the steel strip at least at that of the zinc alloy bath in which it passes. This elevation is conventionally ensured by an installation of ovens in which the strip passes. ovens is one of the parameters
essentiels influençant la vitesse de circulation de la bande. essential influencing the speed of circulation of the band.
Ainsi la vitesse d'une bande épaisse sera plus petite que celle d'une bande mince En plus, il faut noter que la pénétration de la chaleur au coeur d'une bande épaisse est difficile et qu'il Thus the speed of a thick band will be smaller than that of a thin band In addition, it should be noted that the penetration of heat in the heart of a thick band is difficult and it
existe toujours un gradient de température décroissant de la péri- There is always a decreasing temperature gradient of the
phérie au centre de la pièce Par ailleurs on sait que la conduite d'un four de traitement thermique n'est pas toujours très simple et que les modifications de son régime de fonctionnement peuvent In addition, it is known that the operation of a heat treatment furnace is not always very simple and that changes in its operating regime can
apporter des aléas dans la qualité du traitement souhaité. bring hazards into the quality of the desired treatment.
L'invention entend apporter un perfectionnement à ce type d'installation qui permet de faciliter les changements de régime d'une installation de chauffage d'un produit défilant en The invention intends to provide an improvement to this type of installation that facilitates the regime changes of a heating system of a moving product in
continu et l'adaptation de son fonctionnement à différentes épais- continuous operation and the adaptation of its operation to different
seurs de produit sans avoir d'influence sur la vitesse Il s'ensuit products without having any influence on speed It follows
une absence de répercussion sur la totalité de la ligne de galva- an absence of repercussions on the entire line of galva-
nisation ce qui supprime tous les réglages résultant d'un change- which removes all settings resulting from a change in
ment d'allure Le perfectionnement selon l'invention est très The improvement according to the invention is very
facilement adaptable sur une installation déjà existante. easily adaptable to an already existing installation.
Le dispositif de chauffage selon l'invention comporte essentiellement un moyen de chauffage par induction en complément The heating device according to the invention essentially comprises induction heating means in addition to
d'au moins un autre moyen de chauffage à gaz ou électrique com- at least one other gas or electric heating means
portant ou non une atmosphère contrôlée Ce dispositif permet un with or without a controlled atmosphere This device allows a
réglage simple de la capacité de chauffe. simple adjustment of the heating capacity.
L'invention sera mieux comprise au cours de la The invention will be better understood during the
description donnée ci-après à titre d'exemple purement indicatif description given below as a purely indicative example
et non limitatif qui permettra d'en dégager les avantages et les and not limiting, which will make it possible to identify the advantages and
caractéristiques secondaires.secondary characteristics.
Il sera fait référence au dessin annexé qui repré- Reference will be made to the attached drawing which represents
sente de manière très schématique les dispositions de l'invention. very schematically the provisions of the invention.
En se reportant à cette figure, on a symbolisé par le rouleau 1 une bobine de bande métallique que l'on déroule en direction d'une installation de chauffage 2, après lui avoir fait subir un certain nombre d'opérations dans des postes de travail non représentés (tel que du planage, liaison bout à bout de deux bobines consécutives-) Selon l'invention avant l'introduction Referring to this figure, it is symbolized by the roll 1 a coil of metal strip that is unrolled towards a heating installation 2, after having undergone a number of operations in workstations not shown (such as planing, butt connection of two consecutive coils-) According to the invention before the introduction
de la bande dans la batterie de four> on aura disposé un disposi- of the strip in the oven battery> a device
tif 3 de chauffage par induction qui permet d'élever rapidement et jusqu'à coeur la température de la tôle On préférera réaliser une préchauffe ne dépassant pas 120 à 150 'C avec ce dispositif 3 de manière à éviter une oxydation de la bande Cette préchauffe It is preferable to perform a preheating not exceeding 120 to 150 ° C with this device 3 so as to avoid oxidation of the strip. This preheating
peut ainsi seffectuer en atmosphère libre. can thus be carried out in free atmosphere.
L'intérêt d'une disposition telle que décrite réside The interest of a provision as described is
dans le fait qu'un dispositif par induction est à faible encombre- in that an inductive device is low in
ment. On peut ainsi le mettre en place sur une installation existante avant l'entrée dans les fours En outre le chauffage obtenu is lying. It can be put in place on an existing installation before entering the furnaces In addition the heating obtained
est uniforme dans toute l'épaisseur de la bande La vitesse de chauf- is uniform throughout the thickness of the band
fage est de plus très rapide et son rendement est excellent avec le fage is also very fast and its performance is excellent with the
matériel moderne actuellement sur le marché. modern equipment currently on the market.
Enfin la conduite de ce dispositif de chauffage Finally driving this heater
est très souple et donne à la totalité de l'installation une mania- is very flexible and gives the entire installation a
bilité beaucoup plus grande C'est ainsi que l'on peut facilement changer de régime pour l'ensemble de l'installation de chauffage et que l'on pourra conserver des vitesses de défilement sensiblement identiques quelles que soient les épaisseurs des tôles traitées * puisque par induction il est aisé de chauffer rapidement et jusqu'à It is thus possible to easily change the speed for the entire heating system and that it will be possible to maintain substantially identical speeds of movement whatever the thicknesses of the treated sheets * since by induction it is easy to heat quickly and up to
coeur les tôles épaisses.heart the thick plates.
L'invention trouve une application intéressante dans The invention finds an interesting application in
le domaine de la galvanisation Elle n'est pas limitée à la des- the field of galvanisation. It is not limited to
cription qui vient d'en être donnée mais couvre au contraire toutes les variantes qui pourraient lui être apportées sans sortir de son the description which has just been given, but on the contrary covers all the variants which could be brought to it without departing from its
cadre ni de son esprit.frame nor his mind.
Claims (2)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8216756A FR2534361B1 (en) | 1982-10-06 | 1982-10-06 | DEVICE AND METHOD FOR ADJUSTING THE HEATING CAPACITY OF A THERMAL INSTALLATION FOR CONTINUOUSLY MOVING METAL BAND |
| EP83401948A EP0107991A1 (en) | 1982-10-06 | 1983-10-05 | Apparatus and method for the adjustment of the heating capacity of a heating plant for continuously moving metallic strip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8216756A FR2534361B1 (en) | 1982-10-06 | 1982-10-06 | DEVICE AND METHOD FOR ADJUSTING THE HEATING CAPACITY OF A THERMAL INSTALLATION FOR CONTINUOUSLY MOVING METAL BAND |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2534361A1 true FR2534361A1 (en) | 1984-04-13 |
| FR2534361B1 FR2534361B1 (en) | 1988-02-12 |
Family
ID=9278026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8216756A Expired FR2534361B1 (en) | 1982-10-06 | 1982-10-06 | DEVICE AND METHOD FOR ADJUSTING THE HEATING CAPACITY OF A THERMAL INSTALLATION FOR CONTINUOUSLY MOVING METAL BAND |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0107991A1 (en) |
| FR (1) | FR2534361B1 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2576323A1 (en) * | 1985-01-22 | 1986-07-25 | Tecnor Sa | PROCESS FOR PROCESSING CONDUCTIVE PROFILES, PARTICULARLY METALLIC, INSTALLATION FOR ITS IMPLEMENTATION AND TREATED PROFILES SO OBTAINED |
| DE3535453A1 (en) * | 1985-10-04 | 1987-04-09 | Berg Ag | METHOD FOR PATENTING WIRE IN A FLOW AND DEVICE FOR IMPLEMENTING THE METHOD |
| FR2656553B1 (en) * | 1990-01-03 | 1994-12-30 | Stein Heurtey | HEAT TREATMENT PLANT BEFORE LAMINATION OF THIN SLABS PRODUCED BY CONTINUOUS CASTING. |
| FR2661426B1 (en) * | 1990-04-27 | 1992-08-07 | Maubeuge Fer | PROCESS FOR GALVANIZING WITH QUENCH AND CONTINUOUS. |
| FR2688802B1 (en) * | 1992-03-19 | 1994-09-30 | Stein Heurtey | METHOD FOR THE HEAT TREATMENT OF METAL STRIPS. |
| FR2721620B1 (en) * | 1994-06-22 | 1996-08-23 | Maubeuge Fer | Method and device for annealing a metal strip and improving continuous hot-dip galvanizing lines using it. |
| FR2852330B1 (en) * | 2003-03-12 | 2007-05-11 | Stein Heurtey | METHOD OF CONTROLLED OXIDATION OF STRIPS BEFORE CONTINUOUS GALVANIZATION AND LINE OF GALVANIZATION |
| DE102007039279B3 (en) * | 2007-08-20 | 2009-01-02 | Muhr Und Bender Kg | Heat treatment of flexibly rolled strip |
| DE102011102659A1 (en) * | 2011-05-27 | 2012-11-29 | ThermProTEC Asia UG (haftungsbeschränkt) | Method and device for pre-oxidizing metal strips |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE892139C (en) * | 1944-03-24 | 1953-10-05 | Westfaelische Union Ag | Method and device for remuneration of wires, bands or the like. |
| US3329591A (en) * | 1963-09-21 | 1967-07-04 | Muller Hans-Heinz | Method and apparatus for heating metal strip |
| FR1534778A (en) * | 1966-06-07 | 1968-08-02 | Metallurg D Esperancelongdoz S | Continuous galvanizing process and installation |
| US3587268A (en) * | 1968-09-17 | 1971-06-28 | Francis H Bricmont | Workpiece temperature equalization in rolling of steel |
| FR2385801A1 (en) * | 1977-04-02 | 1978-10-27 | Aeg Elotherm Gmbh | Continuous heat treatment of large dia. steel pipes - using two induction heating coils sepd. by fuel fired furnace |
-
1982
- 1982-10-06 FR FR8216756A patent/FR2534361B1/en not_active Expired
-
1983
- 1983-10-05 EP EP83401948A patent/EP0107991A1/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE892139C (en) * | 1944-03-24 | 1953-10-05 | Westfaelische Union Ag | Method and device for remuneration of wires, bands or the like. |
| US3329591A (en) * | 1963-09-21 | 1967-07-04 | Muller Hans-Heinz | Method and apparatus for heating metal strip |
| FR1534778A (en) * | 1966-06-07 | 1968-08-02 | Metallurg D Esperancelongdoz S | Continuous galvanizing process and installation |
| US3587268A (en) * | 1968-09-17 | 1971-06-28 | Francis H Bricmont | Workpiece temperature equalization in rolling of steel |
| FR2385801A1 (en) * | 1977-04-02 | 1978-10-27 | Aeg Elotherm Gmbh | Continuous heat treatment of large dia. steel pipes - using two induction heating coils sepd. by fuel fired furnace |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0107991A1 (en) | 1984-05-09 |
| FR2534361B1 (en) | 1988-02-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| FR2534361A1 (en) | DEVICE AND METHOD FOR ADJUSTING THE HEATING CAPACITY OF A THERMAL INSTALLATION FOR A CONTINUOUSLY CONTINUOUS METAL STRIP | |
| FR2494415A1 (en) | ROTATING FURNACE FOR THERMAL TREATMENT | |
| EP1285972A1 (en) | Process for hot-dip galvanising of high-strength steel strips | |
| FR2566688A1 (en) | METHOD AND DEVICE FOR CONTINUOUS CASTING OF METAL FUSION BATH, ESPECIALLY STEEL FUSION BATH | |
| CA2280405A1 (en) | Metal strip galvanization process | |
| FR2852330A1 (en) | METHOD OF CONTROLLED OXIDATION OF STRIPS BEFORE CONTINUOUS GALVANIZATION AND GALVANIZATION LINE | |
| FR2534275A1 (en) | PROCESS FOR PRODUCING ELECTROMAGNETIC STEEL SHEETS OR STRIPS | |
| EP2176438B1 (en) | Combined annealing and galvanisation line and method for converting a continuous annealing line into such combined line | |
| FR2610551A1 (en) | PROCESS FOR PRODUCING PHOSPHORUS BRONZE THIN STRIPS | |
| EP1134298B1 (en) | Improvements in preheating metal strips, especially in galvanising or annealing lines | |
| CA1215889A (en) | Process and installation for the manufacture of overaged steel strip with zn, a1, alloy coating | |
| BE1007793A6 (en) | Method and installation for continuous strip steel galvanized. | |
| FR2563537A1 (en) | Process and device for diffusion annealing for obtaining metal sheets with alloy coating | |
| EP1229138A1 (en) | Improvements of steel strip heating methods in vertical furnaces | |
| EP1735473B1 (en) | Plants for annealing metal straps | |
| CA1333250C (en) | Processes and devices for obtaining an homogeneous austenite structure | |
| FR2707272A1 (en) | Improvements brought to the cooled rollers for the handling of products in particular metallurgical and iron and steel. | |
| EP0688884A1 (en) | Process and apparatus for annealing of a metallic strip and improvements to hot continuous galvanic lines using the same | |
| FR2660325A1 (en) | METHOD AND DEVICE FOR CONTINUOUSLY COATING A STEEL BAND. | |
| FR2586257A1 (en) | PROCESS AND APPARATUS FOR CONTINUOUSLY RECEIVING EXTREMELY CARBON-CONTENT STEEL FOR DEEP TAPPING | |
| BE862906A (en) | DIRECT CURRENT ELECTROTHERMIC TREATMENT OF CONTINUOUS SHEETS IN A PROTECTIVE ATMOSPHERE | |
| WO1988000619A1 (en) | Line treatment unit for metal products | |
| JPS5933169B2 (en) | Heat treatment method for high alloy composite cast iron rolls | |
| CH291578A (en) | Method and installation for the heat treatment of metal strips. | |
| FR2876709A1 (en) | METHOD AND DEVICE FOR QUALITATIVE AND QUANTITATIVE IMPROVEMENT OF PRODUCTION IN A VERTICAL PROCESSING FURNACE FOR STEEL OR ALUMINUM BANDS |