EP1443120B1 - Dispositif pour le traitement thermique en continu de bandes métalliques - Google Patents

Dispositif pour le traitement thermique en continu de bandes métalliques Download PDF

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Publication number
EP1443120B1
EP1443120B1 EP03029982A EP03029982A EP1443120B1 EP 1443120 B1 EP1443120 B1 EP 1443120B1 EP 03029982 A EP03029982 A EP 03029982A EP 03029982 A EP03029982 A EP 03029982A EP 1443120 B1 EP1443120 B1 EP 1443120B1
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European Patent Office
Prior art keywords
web
run
nozzle
confining fluid
fluid
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EP03029982A
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German (de)
English (en)
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EP1443120B2 (fr
EP1443120A1 (fr
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Carl Prof.Dr.-Ing. Kramer
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
    • F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace
    • 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
    • C21D9/63—Continuous furnaces for strip or wire the strip being supported by a cushion of gas
    • 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
    • C21D9/66—Tower-type furnaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/04—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity adapted for treating the charge in vacuum or special atmosphere
    • F27B9/045—Furnaces with controlled atmosphere
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/06—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and charge; electrically heated
    • F27B9/10—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and charge; electrically heated heated by hot air or gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
    • F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace
    • F27B9/24—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace being carried by a conveyor
    • F27B9/2476—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace being carried by a conveyor the conveyor being constituted by air cushion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
    • F27B9/40—Arrangements of controlling or monitoring devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D19/00—Arrangements of controlling devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D21/00—Arrangements of monitoring devices; Arrangements of safety devices
    • 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
    • C21D9/561—Continuous furnaces for strip or wire with a controlled atmosphere or vacuum
    • 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
    • C21D9/562—Details
    • C21D9/565—Sealing arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D19/00—Arrangements of controlling devices
    • F27D2019/0028—Regulation
    • F27D2019/0059—Regulation involving the control of the conveyor movement, e.g. speed or sequences

Definitions

  • the invention relates to a device for heat treatment of contactless guided metallic bands in the descending passage, in particular for operation under inert gas of low density, such as a nitrogen / hydrogen mixture with a high hydrogen content.
  • Continuous systems play in the heat treatment of strips of both iron and non-ferrous metal alloys, such as. As copper alloys, a major role.
  • the continuous heat treatment is usually carried out under protective gas. This shielding gas can for the most part consist of nitrogen.
  • inert gas with a high hydrogen content or even pure hydrogen.
  • JP-A-02 061 011 see Patent Abstracts of Japan, vol. 014, no. 236 (C-0720) shows a tower furnace plant in which two successive U-shapes are traversed, namely a heating part with heating rods in the descending branch, further heating rods in the ascending branch and a cooling zone again in the descending region.
  • the band is guided by gas jets, but no position detector is provided.
  • JP-A-11 236 624 also shows a tower furnace with vertical passage of the belts in a gas atmosphere with a housing and a roller-bounded heat treatment part comprising a heating part and a cooling part. Furthermore, nozzle systems for heat treatment of the gas by means of forced convection and to stabilize the tape layer by blowing the tape provided: at the lower end of the descending tape run a barrier fluid is provided, where the tape - viewed from above - concave, namely is guided around a roll and then goes up.
  • a device for the heat treatment of contactless guided metallic strips in the descending passage in a gas atmosphere of the type specified in the preamble of claim 1 is known from JP-A-58 193 351, see Patent Abstracts of Japan, vol. 008 no. 030 (6-209), and includes a housing, a roller-confined heat treatment member comprising a heating member and a cooling member, forced convection heat-treating nozzle systems, and stabilizing the band layer by blowing the band and a barrier fluid pool at the bottom End of the rising tape on where the tape - viewed from above -konkav curved; from the bath, the band rises to the rear, the heat treatment part delimiting role.
  • the object of the invention is to provide a device which combines the advantages of tape guide by means of stabilizing floating nozzles with the advantages of tower furnace systems and systems with leadership of the tape to a rope line without having to accept the disadvantages of the known system in purchasing.
  • FIG 1 an embodiment of the device with vertical tape behind the roller 2 is shown.
  • the entire treatment part including the roller 2 is surrounded by a protective gas-tight housing 6.
  • the tape enters through the sealing device 7 shown schematically.
  • This device is, according to the prior art, for. B. designed as a roller seal and requires no further explanation.
  • the band 1 In the descending strip, the band 1 first passes through the heating part 4 and then the first portion of the cooling part 5. On both sides of the band 1 are the stabilizing Beblasungsdüsensysteme 8l, 8r for the heating part and 91 and 9r for the cooling part.
  • This course is in a fluid 12, z. B. water.
  • This fluid 12 usually a suitable liquid, at the same time delimits the interior of the housing 6 from the outside atmosphere and thus separates the protective gas from the ambient air.
  • both on the inner curve and on the outer curve nozzle systems 9i, 9a which act similar to the working in the gas atmosphere systems 8 and 9, but are designed and designed specifically for operation with the barrier fluid and the fluid, in particular Water, point to tape 1.
  • these fluid nozzles 9i, 9a stabilizing forces are exerted on the band which also guide thin bands 1, which would otherwise run, in the desired concave shape.
  • these nozzle systems also act in a position-stabilizing manner in the direction transverse to the strip, similar to a strip center control. But it is also possible, such stabilizing nozzles only in the region of the vertical leg the tape run, which limit the concave curved area to arrange, so that the tape run between them can set freely and only the position in the lowest range is monitored by the sensor 10.
  • the position of the tape run is detected and controlled in the low point of the concave curvature by means of at least one sensor 10, so that the desired shape is maintained under all operating conditions.
  • this altitude detection of the band works advantageously on the echo sounder principle, but it is a radar principle with microwaves possible.
  • FIG. 2 shows further details of a typical belt run of the device according to the invention.
  • the device is sealed against the outside atmosphere by a double roller seal 41.
  • the roller combination 40 is used to remove the strip tension from the higher tension in front of the roller combination 40 to the lower tension in the heat treatment portion.
  • a control roller 42 is arranged in the first deflection of the tape run. Before this control roller 42 there is a sensor for detecting the band position and behind this control roller 42, a further pinch roller smaller diameter, which ensures a concern of the belt 1 on the guide roller 42 even at low tape tension.
  • closure device 43 which consists of two closure members that are movable perpendicular to the band.
  • this closure device 43 is formed by the advantageously water-cooled and provided with heat insulation inlet neck 44 band inlet opening in the heating part 4, which is also at considerable temperature of z. B. about 950 ° C, closed, so that no heat during tape stall from the heat treatment part 4 can escape upwards and possibly there to damage the pulley 42 and their coating leads.
  • a cooling device (not shown) can still be provided, which excludes inadmissibly high roller temperatures.
  • a cooling device can, for. B. by blowing the tape with inert gas low temperature work. It can also be advantageous to arrange the roller combination 40 to reduce the strip tension to the low value in the treatment part immediately before the entry of the tape in this, so that the roller 2 is unnecessary.
  • the heat treatment part 4 and the underlying first portion 5 of the cooling part are indicated in Figure 2 by the reference numeral 45 From the cooling part 5, the band 1 through a protective gas-tight channel, which dips into the liquid closure 12 out.
  • the running in the direction of the roller 3 belt is guided by squeezing rollers 11 and then still adhering to the belt fluid 12, usually water, with the convection dryer 13, which may be heated, dried.
  • FIG. 3 shows by way of example further details of the vertical tape running embodiment.
  • three superimposed heating zones 4 and one mounted under these heating zones 4 cooling zone 5 are shown.
  • the flow guides of the three heating zones 4 and the cooling zone 5 located underneath have the shape of a U. transverse to the strip in the longitudinal section shown in FIG. 3.
  • the legs of the U face downwards. But it is also the reverse arrangement, ie upwardly facing U-legs. possible.
  • the stabilizing nozzle fields 23 are arranged on the outside of the band 1 facing the leg of the U.
  • radial fans 21 which are inserted by means of plugs which are filled with insulating material in the outer wall.
  • the flow housing 20 are connected via crown-like structure 22 with the support structure of the fan 21 and in turn with the support structure of the outer housing 6. The power is transmitted to the tips of the crown teeth.
  • the delimitation of the zones from each other is carried out in the heating part by means of trapezoidal sheet metal floors 26.
  • At the first bottom 26 is below this trapezoidal sheet still a layer of insulating material 27, so that between the first and the second zone, a temperature difference can be adjusted and maintained.
  • This embodiment of the intermediate floor 26 in conjunction with thermal insulation 27 is of course possible between all zones.
  • the outer skin consists of a gas-tight welded sheet steel housing 30.
  • layers 32 of thermal insulation material eg. B. by welding, attached.
  • These applied to the outer wall 30 layers 32 are made of fibers with a high SiO 2 content, which indeed have good mechanical properties, but at high temperatures above about 800 ° C and hydrogen atmosphere tend to decay, since SiO 2 is reduced to SiO.
  • the belt 1 is subjected to impact blasting of the heating or cooling fluid, in particular a gas, e.g. pure hydrogen or a hydrogen / nitrogen mixture with high hydrogen content, blowing, whereby a planar force is exerted on the band, which increases like a spring with decreasing distance between Band 1 and nozzle field; this leads to a position-stabilizing effect on the strip, the size of this stabilizing force being dependent on the back pressure of the blowing fluid in the nozzle exit of the impact blasting.
  • a gas e.g. pure hydrogen or a hydrogen / nitrogen mixture with high hydrogen content
  • the distance between the arranged on both sides of the belt 1 nozzle fields in the heat treatment part is substantially constant in the two areas heating 4 and 5 cooling, which means that the distance change is a maximum of ⁇ 10%.
  • a suitable nozzle system for achieving the desired effect is described in EP 0 864 518 B1 and has in the strip running direction successive nozzle surfaces with nozzle openings of round holes and / or slot dies, wherein the width of the nozzle surfaces - measured parallel to the strip running direction - over the width of the nozzle field - measured perpendicular to the tape direction - changes.
  • the nozzle surfaces are at least partially bordered by slot nozzles at their periphery.
  • This stabilizing nozzle system can be designed and operated in such a way that the band 1 is also stabilized transversely to the strip run by the nozzle system, this transverse stabilizing effect being particularly pronounced in the area of the strip run with a concave curvature, viewed from above.
  • a barrier fluid for the area 12 is any suitable fluid in question, which is preferably carried out with a liquid.
  • a suitable liquid may be selected taking into account the chemical compatibility with the metallic strip material.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Advancing Webs (AREA)

Claims (11)

  1. Dispositif pour le traitement thermique de feuillards métalliques (1) amenés sans contact à traverser en pente descendante une atmosphère gazeuse,
    a) avec un caisson (6),
    b) avec une zone de traitement thermique délimitée par des rouleaux (2, 3) et constituée d'une zone de chauffage (4) et d'une zone de refroidissement (5),
    c) avec des systèmes d'ajutages (81, 8r; 91, 9r) de traitement thermique du feuillard par convexion forcée, qui stabilisent la position du feuillard par soufflage sur le feuillard (1),
    d) avec un bain qui sert à assurer la séparation vis-à-vis de l'atmosphère extérieure, constitué d'un fluide de blocage (12) situé à l'extrémité inférieure du parcours descendant du feuillard où le feuillard (1) vu depuis le haut est courbé de manière concave et hors duquel le feuillard (1) remonte en direction du rouleau arrière (3) qui délimite la partie de traitement thermique,
    e) des ajutages (9i) qui stabilisent la position du feuillard étant disposés dans le fluide de blocage (2) au-dessus du feuillard (1) et étant alimentés en fluide de blocage de telle sorte qu'une boucle de feuillard s'établisse dans le fluide de blocage (12) à l'extrémité inférieure du parcours descendant du feuillard,
    caractérisé par les caractéristiques suivantes :
    f) des ajutages (9a) alimentés en fluide de blocage, qui stabilisent la position du feuillard, sont disposés dans le fluide de blocage (12) en dessous du feuillard (1),
    g) au point bas de la partie en courbe concave du parcours du feuillard, au moins un détecteur qui travaille sans contact, qui détecte et contrôle la position du feuillard et qui travaille selon le principe de la sonde à écho ou le principe du radar à micro-ondes est prévu dans le fluide de blocage (12).
  2. Dispositif selon la revendication 1, caractérisé en ce que les rouleaux (2, 3) qui délimitent la zone de traitement (4, 5) sont situés à des hauteurs différentes.
  3. Dispositif selon au moins une des revendications 1 à 2, caractérisé en ce que grâce au système d'ajutages destiné à souffler un jet incident, le feuillard (1) subit également une stabilisation dans la direction transversale par rapport à l'avancement du feuillard, cet effet de stabilisation transversale dans la zone de l'avancement du feuillard étant particulièrement accusé sur la courbure concave vue du haut.
  4. Dispositif selon l'une des revendications 1 à 3, caractérisé en ce que comme type de blocage, on utilise un fluide approprié, en particulier de l'eau.
  5. Dispositif selon au moins l'une des revendications 1 à 4, caractérisé en ce que les rouleaux qui délimitent la zone de traitement à la sortie du feuillard sont des rouleaux d'essorage (11).
  6. Dispositif selon au moins l'une des revendications 1 à 5, caractérisé en ce que vu dans la direction d'avancement du feuillard, en aval du rouleau de renvoi (2) qui délimite la partie de traitement du feuillard à l'entrée (7) du feuillard, le feuillard s'étend à la verticale et en ce que la courbure du feuillard, concave vue du haut, formée dans le fluide de blocage (12) qui délimite l'espace de traitement, se raccorde à l'extrémité inférieure du parcours vertical du feuillard.
  7. Dispositif selon au moins l'une des revendications 1 à 6, caractérisé en ce que le soufflage du feuillard en vue d'un transfert de chaleur par convexion s'effectue par le système de balayage (20) qui, en coupe longitudinale et transversalement par rapport au plan du feuillard,
    a) a la forme d'un U dont les branches (20 et 24) sont parallèles au parcours (1) du feuillard,
    b) la branche (24) du U tournée vers le feuillard étant dotée du système (23) d'ajutages de stabilisation et
    c) un ventilateur radial (21) est monté dans la branche (20) du U non tournée vers le feuillard,
    d) le caisson de guidage d'écoulement est fixé sur la paroi extérieure à l'aide d'un composant (22) en forme de couronne et
    e) la force exercée par les pointes des dents de la couronne est transférée au boîtier extérieur et à la structure porteuse reliée à cette dernière.
  8. Dispositif selon la revendication 7, caractérisé en ce que des tubes (25) de chauffage radiant sont montés entre les branches (20 et 24) du guide d'écoulement en forme de U destiné à chauffer le dispositif dans la zone de chauffage (4) et en ce que des refroidisseurs (28) et en particulier des échangeurs de chaleur sont situés dans la partie de refroidissement (5) pour refroidir le fluide de soufflage en cet endroit.
  9. Dispositif selon au moins l'une des revendications 1 à 8, caractérisé en ce que les cloisons entre les zones individuelles du dispositif sont formées par des fonds intermédiaires en tôles (26) façonnées en tôles trapézoïdales.
  10. Dispositif selon la revendication 9, caractérisé en ce que les fonds intermédiaires en tôles trapézoïdales (26) sont dotés au moins d'un côté de couches de matériau (27) d'isolation thermique pour diminuer l'équilibrage de température entre des zones voisines.
  11. Dispositif selon au moins l'une des revendications 1 à 10, caractérisé en ce que le système d'ajutages de stabilisation est constitué de surfaces d'ajutages successives dans la direction d'avancement du feuillard et dotées d'ouvertures d'ajutages constituées de trous ronds et/ou d'ajutages en fente dont la largeur mesurée parallèlement à la direction d'avancement du feuillard se modifie sur la largeur de la série d'ajutages mesurée perpendiculairement à la direction d'avancement du feuillard et en ce que les surfaces d'ajutages sont entourées au moins en partie à leur périphérie par des ajutages en fente.
EP03029982A 2003-01-28 2003-12-30 Dispositif pour le traitement thermique en continu de bandes métalliques Expired - Lifetime EP1443120B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10303228 2003-01-28
DE10303228A DE10303228B3 (de) 2003-01-28 2003-01-28 Vorrichtung zur Wärmebehandlung metallischer Bänder im Durchlauf

Publications (3)

Publication Number Publication Date
EP1443120A1 EP1443120A1 (fr) 2004-08-04
EP1443120B1 true EP1443120B1 (fr) 2006-07-12
EP1443120B2 EP1443120B2 (fr) 2010-10-13

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EP03029982A Expired - Lifetime EP1443120B2 (fr) 2003-01-28 2003-12-30 Dispositif pour le traitement thermique en continu de bandes métalliques

Country Status (4)

Country Link
US (1) US6895692B2 (fr)
EP (1) EP1443120B2 (fr)
AT (1) ATE332983T1 (fr)
DE (2) DE10303228B3 (fr)

Cited By (1)

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CN105800376A (zh) * 2016-04-29 2016-07-27 芜湖顺成电子有限公司 电线输送收线装置

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090044357A1 (en) * 2007-08-16 2009-02-19 The Procter & Gamble Company Electric toothbrushes
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US6895692B2 (en) 2005-05-24
EP1443120B2 (fr) 2010-10-13
EP1443120A1 (fr) 2004-08-04
DE10303228B3 (de) 2004-04-15
ATE332983T1 (de) 2006-08-15

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