EP0192169B1 - Device for the contactless guiding of material webs, in particular metal webs, by means of a gas - Google Patents

Device for the contactless guiding of material webs, in particular metal webs, by means of a gas Download PDF

Info

Publication number
EP0192169B1
EP0192169B1 EP86101729A EP86101729A EP0192169B1 EP 0192169 B1 EP0192169 B1 EP 0192169B1 EP 86101729 A EP86101729 A EP 86101729A EP 86101729 A EP86101729 A EP 86101729A EP 0192169 B1 EP0192169 B1 EP 0192169B1
Authority
EP
European Patent Office
Prior art keywords
nozzle boxes
nozzle
material web
web
boxes
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
EP86101729A
Other languages
German (de)
French (fr)
Other versions
EP0192169A2 (en
EP0192169A3 (en
Inventor
Johann Ing. Hürtgen (grad.)
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.)
Otto Junker GmbH
Original Assignee
Otto Junker GmbH
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
Application filed by Otto Junker GmbH filed Critical Otto Junker GmbH
Priority to AT86101729T priority Critical patent/ATE57367T1/en
Publication of EP0192169A2 publication Critical patent/EP0192169A2/en
Publication of EP0192169A3 publication Critical patent/EP0192169A3/en
Application granted granted Critical
Publication of EP0192169B1 publication Critical patent/EP0192169B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/24—Registering, tensioning, smoothing or guiding webs longitudinally by fluid action, e.g. to retard the running web
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H20/00—Advancing webs
    • B65H20/14—Advancing webs by direct action on web of moving fluid
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/10—Means using fluid made only for exhausting gaseous medium
    • B65H2406/11—Means using fluid made only for exhausting gaseous medium producing fluidised bed
    • B65H2406/112—Means using fluid made only for exhausting gaseous medium producing fluidised bed for handling material along preferably rectilinear path, e.g. nozzle bed for web

Definitions

  • the invention relates to a device for the contact-free, wavy guiding of material webs, in particular metal strips, by means of a gas medium with nozzle boxes arranged above and below at a distance from the material web, each having a nozzle exit plane, between which gas extraction channels are provided above and below the material web.
  • Devices of this type are used, in particular, for heating or cooling strip or sheet material.
  • Luit or protective gas which is blown against the material web, is predominantly used as the gas medium.
  • the guiding of metal strips with a thickness of 0.3 mm and more can no longer be carried out in a satisfactory manner.
  • the critical strip thickness can still be less than 0.3 mm.
  • the metal strip of the corresponding thickness or stiffness emerging from the device rather has an impermissibly high proportion of longitudinal folds and other unevenness, so that a high proportion of rejects must be expected.
  • a device is also known (DE-PS 33 18861) through which webs of material, in particular aluminum strips, can be passed in a floating manner for the purpose of annealing treatment.
  • nozzle boxes extending transversely to the direction of transport of the material webs are used, each of which has two longitudinal slots or rows of holes to form air cushions, the blowing directions of which are inclined towards one another.
  • These nozzle boxes are arranged in pairs above and below the web.
  • Such a pair of nozzle boxes arranged above the web then is followed by a further pair of nozzle boxes in the transport direction below the web.
  • This pair is then connected to a further pair of nozzle boxes in the transport direction above the web.
  • the heating or cooling of the web in relation to the treatment section can only be relatively slight. To achieve a high system output, a relatively long treatment route with the corresponding technical effort is therefore necessary.
  • the load capacity of the gas jets emerging from the nozzle boxes and inclined towards one another is very low, so that this device cannot be considered for relatively thick and heavy metal strips.
  • the nozzle boxes in this device must be designed to be quite complex, this known device cannot be used to achieve the optimal sinusoidal shape for the carrying and guiding effect.
  • a device of the type mentioned at the outset in which a material web is guided in a wave shape between pairs of nozzle boxes arranged one behind the other in the transport direction.
  • the nozzle boxes of each pair are arranged opposite each other on the two sides of the web.
  • a pair of nozzle boxes is assigned to each wave crest and each wave trough.
  • This known device is particularly unsuitable for thick and / or rigid strip material, in which a large wavelength is required with a fine gradation of the undulating course.
  • a device for the transport of web material through a treatment plant is also known (DE-A-2 558 002), in which nozzle boxes are arranged above and below the web in a blow box plane.
  • the distance between the two blow box levels can be adjustable.
  • the nozzle boxes have different degrees of perforation, whereby nozzle boxes with the same degree of perforation are grouped together.
  • the known device accordingly requires a plurality of differently designed nozzle boxes for controlling the course of the web.
  • the actual path of the web in a particular design of the nozzle boxes cannot be precisely calculated in advance.
  • An optimization of the web path cannot be achieved or requires an unacceptable effort.
  • the invention is based on the object of designing a device of the type mentioned at the outset such that it can be used to run both relatively thin and relatively thick and / or rigid strip material, in particular metal strip, in a contact-free manner in a sinusoidal wavy line, one for heating or cooling high power density should be achievable.
  • nozzle outlet planes of the nozzle boxes arranged above and below the web are in relation to one of the
  • the direction of transport of the web corresponding to the substantially horizontal plane in the direction of transport has individual or group-wise distances that several nozzle boxes are assigned to each wave crest or each wave trough, that the position of the exit planes of the nozzle boxes can be adapted to the waveform and that those arranged above the web are arranged Nozzle boxes are offset from the nozzle boxes arranged below the web in the transport direction.
  • the distance between the upper and lower nozzle boxes from the web can be selected according to the load to be carried.
  • the nozzle boxes can have one or more rows of nozzles, it being possible to use slot nozzles and nozzles with a round, oval or other shaped nozzle opening. Air is particularly suitable as the gas medium.
  • the offset of the nozzle boxes arranged above the web relative to those arranged below leads to a stabilization of the web.
  • the individual nozzle boxes which are arranged above and below the web, can be placed in the device in accordance with the desired, possibly sinusoidal, course of the web.
  • the device according to the invention can also be designed such that the nozzle boxes above and below the web are distributed over essentially the same bandwidth.
  • the device according to the invention can also be designed such that the nozzle boxes arranged above the web are offset from the nozzle boxes arranged below the web transversely to the transport direction.
  • the device according to the invention can also be designed such that at least some of the nozzle boxes can be adjusted vertically with respect to a substantially horizontal plane corresponding to the direction of transport. With such an adjustability, the course of the web in the device can be changed. In particular, an adaptation to changing material webs and material properties is possible.
  • the device according to the invention can be designed such that at least some of the adjustable nozzle boxes can be adjusted together. In this way, the adjustability of the nozzle boxes with respect to the web can be simplified and thus accelerated.
  • Fig. 1a shows schematically a device A in the form of a heating furnace or a cooling device.
  • This device A has a fan B which conveys gas flows in nozzle boxes D via pressure channels C. The gas emerges from the nozzle boxes D aua and meets a material web E. From here, the gas is fed back to the fan B via an intake duct F. Heating or cooling elements for the gas streams can be provided in the pressure channels C and / or the intake channel F.
  • a web in the form of a metal strip 1 is passed through the device shown in FIG. 1.
  • Upper nozzle boxes 2 to 5 are arranged above the metal strip 1.
  • Below the metal strip 1 there are opposing lower nozzle boxes 6 to 9.
  • the nozzle boxes 2 to 9 are at different distances from this central plane 10 arranged.
  • the upper nozzle boxes 2 and 4 and the lower nozzle boxes 7 and 9 are arranged at the same distance from the central plane 10.
  • the upper nozzle boxes 3 and 5 and the lower nozzle boxes 6 and 8 are also at the same distance from one another from the imaginary center plane 10.
  • the arrows 11 emerging from each nozzle box 2 to 9 in the direction of the metal strip 1 are intended to be those from the nozzles of each nozzle box 2 to 9 represent emerging gas flows.
  • the upper nozzle boxes 2 to 5 are arranged offset relative to the lower nozzle boxes 6 to 9 in the direction of transport of the metal strip 1 indicated by an arrow 12.
  • the metal strip 1 When the metal strip 1 is subjected to gas flows, e.g. Air or Schutzgss, from the nozzle boxes 2 to 9, the metal strip 1 takes a sinusoidal course.
  • gas flows e.g. Air or Schutzgss
  • adjustable throttle flaps 14 through 19 are attached, with which the amount of gas to be removed from the treatment room can be adjusted.
  • adjustable throttle valves 14 to 19 fixed throttle plates or the like can also be used.
  • the upper throttle valves 14 to 16 or the lower throttle valves 17 to 19 can also be dispensed with in whole or in part.
  • the embodiment of the device according to FIG. 2 is particularly suitable for treating particularly stiff or relatively thick metal strip 1.
  • the distance from upper nozzle boxes 20 to 27 and lower nozzle boxes 28 to 34 to the central plane 10 is changed over the length of the metal strip 1 in smaller steps than in the embodiment according to FIG. 1.
  • the sinusoidal line that the metal strip 1 is correspondingly flat is thus follows when it is transported through the device.
  • throttle devices (not shown) can be present in gas discharge channels 35 between the individual nozzle boxes 20 to 34.
  • the embodiment according to FIG. 3 is also particularly suitable for relatively stiff and thick metal strip 1.
  • the nozzle boxes 36 to 53 are arranged at the same distance from the central plane 10.
  • the nozzle boxes 39 to 41 and 48 to 50 have different, mutually different distances from the center plane 10.
  • throttle devices can be provided in a suitable manner in gas discharge channels 54 between the nozzle boxes 36 to 53.
  • nozzle boxes 70 to 84 are provided which are not offset as a whole perpendicular to the surface of the metal strip 1 or the central plane 10; rather, here only the surfaces of the nozzle boxes 70 to 84 provided with nozzles are arranged perpendicular to the surface of the metal strip 1 and thus offset to the central plane 10 in the manner shown.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Advancing Webs (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Manufacturing Of Electric Cables (AREA)

Abstract

In an apparatus for contactless guiding of webs of material, in particular metal strips, by means of a gas medium, nozzle boxes are disposed above and below the web of material. The distances of the nozzle boxes from an imaginary, essentially horizontal center plane extending in the direction of transport differs individually or in groups. The positions of the outlet planes of the nozzle boxes are adaptable to the wave form, and each wave trough and each wave crest of the wave form is formed by at least two adjacent nozzle boxes.

Description

Die Erfindung betrifft eine Vorrichtung zum berührungsfreien, wellenförmigen Führen von Warenbahnen, insbesondere Metallbändern, mittels eines Gasmediums mit oberhalb und unterhalb in Abstand von der Warenbahn angeordneten, jeweils eine Düsenaustrittsebene aufweisenden Düsenkästen, zwischen denen oberhalb und unterhalb der Warenbahn Gasabzugskanäle vorgesehen sind.The invention relates to a device for the contact-free, wavy guiding of material webs, in particular metal strips, by means of a gas medium with nozzle boxes arranged above and below at a distance from the material web, each having a nozzle exit plane, between which gas extraction channels are provided above and below the material web.

Derartige Vorrichtungen dienen insbesondere zum Erwarmen oder Kühlen von band- oder bahnförmigem Material. As Gasmedium wird dabei überwiegend Luit oder Schutzgas eingesetzt, die gegen die Warenbahn geblasen wird.Devices of this type are used, in particular, for heating or cooling strip or sheet material. Luit or protective gas, which is blown against the material web, is predominantly used as the gas medium.

Es ist bereits bekannt (DE-AS 25 21 017), Warenbahnen, insbesondere Metallbänder, mit einer Dicke von 0,1 mm und mehr gleichmäßig und ebenflächig durch einen Spalt zwischen entgegengerichteten Düsenkästen hindurchzuführen. Dabei verlaufen die Düsenkästen quer zur Transportrichtung der Warenbahn, und die längs-oder quergerichteten Düsen sind versetzt zueinander angeordnet. Die nahe einer Warenbahn angeordneten Düsenkästen sind durch Gasabzugskanäle zum Ableiten des über die Düsen auf die Warenbahn geblasenen Gasmediums voneinander getrennt. In diese Gasabzugskanäle sind Drosselklappen zur Regelung des Gasabzugs eingesetzt.It is already known (DE-AS 25 21 017) to pass material webs, in particular metal strips, with a thickness of 0.1 mm and more evenly and evenly through a gap between opposing nozzle boxes. The nozzle boxes run transversely to the direction of transport of the material web, and the longitudinal or transverse nozzles are offset from one another. The nozzle boxes arranged near a product web are separated from one another by gas extraction channels for discharging the gas medium blown onto the product web via the nozzles. Throttle valves for regulating the gas discharge are inserted into these gas discharge ducts.

Mit dieser bekannten Vorrichtung ist das Führen von Metallbändern mit einer Stärke von 0,3 mm und mehr nicht mehr in einer zufriedenstellenden Weise durchzuführen. Bei Bandern aus speziellen Metallegierungen, z.B. einigen Kupferlegierungen, kann die kritische Bandstärke noch unter 0,3 mm liegen.With this known device, the guiding of metal strips with a thickness of 0.3 mm and more can no longer be carried out in a satisfactory manner. For bands made of special metal alloys, e.g. some copper alloys, the critical strip thickness can still be less than 0.3 mm.

Eine vorteilhafte sinusförmige Metallbandführung durch die Vorrichtung läßt sich dabei nicht erreichen. Das aus der Vorrichtung austretende Metallband entsprechender Dicke bzw. Steifheit weist vielmehr einen unzulässig hohen Anteil an Längsfalten und anderen Unebenheiten auf, so daß mit einem hohen Anteil an Ausschuß gerechnet werden muß.An advantageous sinusoidal metal strip guide through the device cannot be achieved. The metal strip of the corresponding thickness or stiffness emerging from the device rather has an impermissibly high proportion of longitudinal folds and other unevenness, so that a high proportion of rejects must be expected.

Es ist ferner eine Vorrichtung bekannt (DE-PS 33 18861), durch die Warenbahnen, insbesondere Aluminiumbänder, zum Zweck einer Glühbehandlung schwebend hindurchgeführt werden können. Dabei werden quer zur Transportrichtung der Warenbahnen sich erstreckende Düsenkästen verwendet, die zur Bildung von Luftkissen je zwei Längsschlitze oder Lochreihen aufweisen, deren Blasrichtungen aufeinanderzu geneigt sind. Diese Düsenkästen sind oberhalb und unterhalb der Warenbahn paarweise angeordnet. Einem solchen Paar von oberhalb der Warenbahn angeordneten Düsenkästen folgt dann in Transportrichtung unterhalb der Warenbahn ein weiteres Paar von Düsenkästen. An dieses Paar schließt sich in Transportrichtung dann oberhalb der Warenbahn ein weiteres Paar von Düsenkästen an. Dies bedeutet, daß zwischen denjenigen Düsenpaaren, die oberhalb oder unterhalb der Warenbahn angeordnet sind, große Zwischenräume vorhanden sind. Folglich kann die Erwärmung bzw. Abkühlung der Warenbahn bezogen auf die Behandlungsstrecke nur relativ gering sein. Zur Erreichung einer hohen Anlagenleistung ist deshalb eine relativ lange Behandlungsstrecke mit entsprechendem technischen Aufwand erforderlich.A device is also known (DE-PS 33 18861) through which webs of material, in particular aluminum strips, can be passed in a floating manner for the purpose of annealing treatment. In this case, nozzle boxes extending transversely to the direction of transport of the material webs are used, each of which has two longitudinal slots or rows of holes to form air cushions, the blowing directions of which are inclined towards one another. These nozzle boxes are arranged in pairs above and below the web. Such a pair of nozzle boxes arranged above the web then is followed by a further pair of nozzle boxes in the transport direction below the web. This pair is then connected to a further pair of nozzle boxes in the transport direction above the web. This means that there are large gaps between those nozzle pairs which are arranged above or below the web. As a result, the heating or cooling of the web in relation to the treatment section can only be relatively slight. To achieve a high system output, a relatively long treatment route with the corresponding technical effort is therefore necessary.

Bei der bekannten Vorrichtung ist zudem die Tragkraft der aus den Düsenkästen austretenden, aufeinanderzu geneigten Gasstrahlen sehr gering, so daß diese Vorrichtung für relativ dicke und schwere Metallbänder nicht in Betracht kommen kann. Obgleich die Düsenkästen bei dieser Vorrichtung recht aufwendig gestaltet sein müssen, kann mit dieser bekannten Vorrichtung nicht der für den Trage- und Führungseffekt optimale sinusförmige Verlauf herbeigeführt werden.In the known device, the load capacity of the gas jets emerging from the nozzle boxes and inclined towards one another is very low, so that this device cannot be considered for relatively thick and heavy metal strips. Although the nozzle boxes in this device must be designed to be quite complex, this known device cannot be used to achieve the optimal sinusoidal shape for the carrying and guiding effect.

Aus JP-A-5 696 030 ist eine Vorrichtung der eingangs erwähnten Art bekannt, bei der eine Warenbahn wellenförmig zwischen in Transportrichtung hintereinander angeordneten Paaren von Düsenkästen hindurchgeführt wird. Die Düsenkästen jedes Paares sind dabei auf den beiden Seiten der Warenbahn einander gegenüberliegend angeordnet. Jedem Wellenberg und jedem Wellental ist ein Paar von Düsenkästen zugeordnet.From JP-A-5 696 030 a device of the type mentioned at the outset is known, in which a material web is guided in a wave shape between pairs of nozzle boxes arranged one behind the other in the transport direction. The nozzle boxes of each pair are arranged opposite each other on the two sides of the web. A pair of nozzle boxes is assigned to each wave crest and each wave trough.

Diese bekannte Vorrichtung ist insbesondere für dickes und/oder steifes Bandmaterial ungeeignet, bei dem eine große Wellenlänge bei feiner Stufung des wellenförmigen Verlaufs erforderlich ist.This known device is particularly unsuitable for thick and / or rigid strip material, in which a large wavelength is required with a fine gradation of the undulating course.

Es ist ferner eine Vorrichtung für den Transport bahnförmigen Materials durch eine Behandlungsanlage bekannt (DE-A-2 558 002), bei der oberhalb und unterhalb der Warenbahn jeweils in einer Blaskastenebene Düsenkästen angeordnet sind. Der Abstand zwischen den beiden Blaskastenebenen kann regelbar sein. Die Düsenkästen haben unterschiedliche perforationsgrade, wobei Düsenkästen mit gleichem Perforationsgrad zu einer Gruppe zusammengefaßt sind.A device for the transport of web material through a treatment plant is also known (DE-A-2 558 002), in which nozzle boxes are arranged above and below the web in a blow box plane. The distance between the two blow box levels can be adjustable. The nozzle boxes have different degrees of perforation, whereby nozzle boxes with the same degree of perforation are grouped together.

Die bekannte Vorrichtung erfordert demnach mehrere voneinander abweichend ausgebildete Düsenkästen zur Steuerung des Warenbahnverlaufs. Der bei einer bestimmten Gestaltung der Düsenkästen sich tatsächlich ergebende Warenbahnverlauf ist im voraus nicht genau zu berechnen. Eine Optimierung des Warenbahnverlaufs ist nicht zu erreichen bzw. erfordert einen nicht akzeptablen Aufwand.The known device accordingly requires a plurality of differently designed nozzle boxes for controlling the course of the web. The actual path of the web in a particular design of the nozzle boxes cannot be precisely calculated in advance. An optimization of the web path cannot be achieved or requires an unacceptable effort.

Der Erfindung liegt nun die Aufgabe zugrunde, eine Vorrichtung der eingangs erwähnten Art so auszubilden, daß mit ihr sowohl relativ dünnes als auch relativ dickes und/oder steifes Bandmaterial, insbesondere Metallband, berühungsfrei in sinusförmiger Wellenlinie geführt werden kann, wobei für Erwärumung oder Kühlung eine hohe Leistungsdichte erreichbar sein soll.The invention is based on the object of designing a device of the type mentioned at the outset such that it can be used to run both relatively thin and relatively thick and / or rigid strip material, in particular metal strip, in a contact-free manner in a sinusoidal wavy line, one for heating or cooling high power density should be achievable.

Diese Aufgabe wird bei einer Vorrichtung der eingangs erwähnten Art erfindungsgemäß dadurch gelöst, daß die Düsenaustrittsebenen der oberhalb sowie der unterhalb der Warenbahn angeordneten Düsenkästen in Bezug auf eine der Transportrichtung der Warenbahn entsprechende im wesentlichen waagerechte Ebene in Transportrichtung einzeln oder gruppenweise abweichende Abstände haben, daß zum wellenförmigen Führen jedem Wellenberg bzw. jedem Wellental mehrere Düsenkästen zugeordnet sind, daß die Lage der Austrittsebenen der Düsenkästen der Wellenform anpaßbar ist und daß die oberhalb der Warenbahn angeordneten Düsenkästen gegenüber den unterhalb der Warenbahn angeordneten Düsenkästen in Transportrichtung versetzt angeordnet sind.This object is achieved according to the invention in a device of the type mentioned at the outset in that the nozzle outlet planes of the nozzle boxes arranged above and below the web are in relation to one of the The direction of transport of the web corresponding to the substantially horizontal plane in the direction of transport has individual or group-wise distances that several nozzle boxes are assigned to each wave crest or each wave trough, that the position of the exit planes of the nozzle boxes can be adapted to the waveform and that those arranged above the web are arranged Nozzle boxes are offset from the nozzle boxes arranged below the web in the transport direction.

Der Abstand der oberen und der unteren Düsenkästen von der Warenbahn kann entsprechend der zu tragenden Last gewählt werden. Die Düsenkästen können eine oder mehrere Düsenreihen aufweisen, wobei Schlitzdüsen sowie Düsen mit runder, ovaler oder anders geformter Düsenöffnung verwendet werden können. Als Gasmedium kommt insbesondere Luft in Betracht. Der Versatz der oberhalb der Warenbahn angeordneten Düsenkästen bezüglich der unterhalb angeordneten führt zu einer Stabilisierung der Warenbahn.The distance between the upper and lower nozzle boxes from the web can be selected according to the load to be carried. The nozzle boxes can have one or more rows of nozzles, it being possible to use slot nozzles and nozzles with a round, oval or other shaped nozzle opening. Air is particularly suitable as the gas medium. The offset of the nozzle boxes arranged above the web relative to those arranged below leads to a stabilization of the web.

Die einzelnen Düsenkästen, die oberhalb und unterhalb der Warenbahn angeordenet sind, können entsprechend dem gewünschten, möglicherweise sinusförmigen, Verlauf der Bahn in der Vorrichtung plaziert sein.The individual nozzle boxes, which are arranged above and below the web, can be placed in the device in accordance with the desired, possibly sinusoidal, course of the web.

Die erfindungsgemäße Vorrichtung kann ferner so ausgebildet sein, daß die Düsenkästen oberhalb und unterhalb der Warenbahn im wesentlichen über die gleiche Bandbreite verteilt sind.The device according to the invention can also be designed such that the nozzle boxes above and below the web are distributed over essentially the same bandwidth.

Die erfindungsgemäße Vorrichtung kann ferner so ausgebildet sein, daß die oberhalb der Warenbahn angeordneten Düsenkästen gegenüber den unterhalb der Warenbahn angeordneten Düsenkästen quer zur Transportrichtung versetzt angeordnet sind.The device according to the invention can also be designed such that the nozzle boxes arranged above the web are offset from the nozzle boxes arranged below the web transversely to the transport direction.

Die erfindungsgemäße Vorrichtung kann ferner so ausgebildet sein, daß zumindest ein Teil der Düsenkästen senkrecht in Bezug auf eine der Transportrichtung entsprechende im wesentlichen waagerechte Ebene einstellbar ist. Durch eine solche Einstellbarkeit kann der Verlauf der Warenbahn in der Vorrichtung verändert werden. Insbesondere ist dabei eine Anpassung an wechselnde Warenbahnen und Materialbeschaffenheiten möglich.The device according to the invention can also be designed such that at least some of the nozzle boxes can be adjusted vertically with respect to a substantially horizontal plane corresponding to the direction of transport. With such an adjustability, the course of the web in the device can be changed. In particular, an adaptation to changing material webs and material properties is possible.

Schließlich kann die erfindungsgemäße Vorrichtung so ausgebildet sein, daß zumindest ein Teil der einstellbaren Düsenkästen gemeinsam einstellbar ist. Auf diese Weise kann die Einstellbarkeit der Düsenkästen in Bezug auf die Warenbahn vereinfacht und damit beschleunigt werden.Finally, the device according to the invention can be designed such that at least some of the adjustable nozzle boxes can be adjusted together. In this way, the adjustability of the nozzle boxes with respect to the web can be simplified and thus accelerated.

Im folgenden Teil der Beschreibung werden einige Ausführungsformen der Vorrichtung anhand von Zeichnungen beschrieben.In the following part of the description, some embodiments of the device are described with reference to drawings.

Es zeigt:

  • Fig. 1 eine schematiache Ansicht der Vorrichtung mit nach einer ersten Ausführungsform angeordneten Düsenkästen,
  • Fig. 1a eine schematische Seitenansicht der Vorrichtung nach Fig. 1,
  • Fig. 2 die Anordnung von Düsenkästen gemäß einer Ausführungsform der Erfindung, die insbesondere für Metallband relativ großer Bandstärke geeignet ist,
  • Fig. 3 eine weitere Ausführungsform der Erfindung für steifes Metallband,
  • Fig. 4 eine weitere Ausführungsform der erfindungsgemäßen Vorrichtung und
  • Fig. 5 eine weitere Ausführungsform der erfindungsgemäßen Vorrichtung, bei der die mit Düsen versehenen Flächen, nicht aber die Düsenkästen, in Bezug auf eine Mittellinie versetzt sind.
It shows:
  • 1 is a schematic view of the device with nozzle boxes arranged according to a first embodiment,
  • 1a is a schematic side view of the device of FIG. 1,
  • 2 shows the arrangement of nozzle boxes according to an embodiment of the invention, which is particularly suitable for metal strips of relatively large strip thickness,
  • 3 shows a further embodiment of the invention for rigid metal strip,
  • Fig. 4 shows a further embodiment of the device according to the invention and
  • 5 shows a further embodiment of the device according to the invention, in which the surfaces provided with nozzles, but not the nozzle boxes, are offset with respect to a center line.

Fig. 1a zeigt schematisch eine Vorrichtung A in Form eines Erwärmungsofens oder einer Kühlvorrichtung. Diese Vorrichtung A hat einen Ventilator B, der über Druckkanäle C Gasströme in Düsenkästen D fördert. Das Gas tritt aus den Düsenkästen D aua und trifft auf eine Warenbahn E. Von hier aus wird das Gas über einen Ansaugkanal F wieder dem Ventilator B zugeführt. In den Druckkanälen C und/oder dem Ansaugkanal F können Heiz- oder Kühlelemente für die Gasströme vorgesehen sein.Fig. 1a shows schematically a device A in the form of a heating furnace or a cooling device. This device A has a fan B which conveys gas flows in nozzle boxes D via pressure channels C. The gas emerges from the nozzle boxes D aua and meets a material web E. From here, the gas is fed back to the fan B via an intake duct F. Heating or cooling elements for the gas streams can be provided in the pressure channels C and / or the intake channel F.

Durch die in Fig. 1 dargestellte Vorrichtung wird eine Warenbahn in Form eines Metallbandes 1 hindurchgeführt. Über dem Metallband 1 sind obere Düsenkästen 2 bis 5 angeordnet. Unter dem Metallband 1 befinden sich entgegengerichtete untere Düsenkästen 6 bis 9. Zwischen den oberen Düsenkästen 2 bis 5 und den unteren Düsenkästen 6 bis 9 verläuft in Transportrichtung eine im wesentlichen waagerechte Mittelebene 10. Die Düsenkästen 2 bis 9 sind in unterschiedlichen Abständen zu dieser Mittelebene 10 angeordnet. Dabei sind die oberen Düsenkästen 2 und 4 sowie die unteren Düsenkästen 7 und 9 mit gleichem Abstand von der Mittelebene 10 angeordnet. Die oberen Düsenkästen 3 und 5 sowie die unteren Düsenkästen 6 und 8 haben untereinander ebenfalls gleichen Abstand von der gedachten Mittelebene 10. Die aus jedem Düsenkasten 2 bis 9 in Richtung auf das Metallband 1 austretenden Pfeile 11 sollen die aus den Düsen eines jeden Düsenkastene 2 bis 9 austretenden Gasströme darstellen.A web in the form of a metal strip 1 is passed through the device shown in FIG. 1. Upper nozzle boxes 2 to 5 are arranged above the metal strip 1. Below the metal strip 1 there are opposing lower nozzle boxes 6 to 9. Between the upper nozzle boxes 2 to 5 and the lower nozzle boxes 6 to 9 there is an essentially horizontal central plane 10 in the direction of transport. The nozzle boxes 2 to 9 are at different distances from this central plane 10 arranged. The upper nozzle boxes 2 and 4 and the lower nozzle boxes 7 and 9 are arranged at the same distance from the central plane 10. The upper nozzle boxes 3 and 5 and the lower nozzle boxes 6 and 8 are also at the same distance from one another from the imaginary center plane 10. The arrows 11 emerging from each nozzle box 2 to 9 in the direction of the metal strip 1 are intended to be those from the nozzles of each nozzle box 2 to 9 represent emerging gas flows.

Die oberen Düsenkästen 2 bis 5 sind gegenüber den unteren Düsenkästen 6 bis 9 in der durch einen Pfeil 12 angedeuteten Transportrichtung des Metallbandes 1 betrachtet versetzt angeordnet.The upper nozzle boxes 2 to 5 are arranged offset relative to the lower nozzle boxes 6 to 9 in the direction of transport of the metal strip 1 indicated by an arrow 12.

Bei Beaufschlagung des Metallbandes 1 mit Gasströmen, z.B. Luft oder Schutzgss, aus den Düsenkästen 2 bis 9 nimmt das Metallband 1 einen sinusförmigen Verlauf.When the metal strip 1 is subjected to gas flows, e.g. Air or Schutzgss, from the nozzle boxes 2 to 9, the metal strip 1 takes a sinusoidal course.

Zwischen jeweils zwei benachbarten Düsenkästen 2 bis 9 befindet sich ein Gasabzugskanal 13. In diesen Gasabzugskanälen 13 sind verstellbare Drosselklappen 14 bis 19 angebracht, mit denen die aus dem Behandlungsraum abzuführende Gasmenge einstellbar ist. Anstelle der verstellbaren Drosselklappen 14 bia 19 können auch festetehende Drosselbleche oder dgl. verwendet werden. Je nach Erfordernissen kann auch auf die oberen Drosselklappen 14 bis 16 oder auf die unteren Drosselklappen 17 bis 19 ganz oder teilweise verzichtet werden.There is a gas exhaust duct 13 between each two adjacent nozzle boxes 2 through 9. In these gas exhaust ducts 13, adjustable throttle flaps 14 through 19 are attached, with which the amount of gas to be removed from the treatment room can be adjusted. Instead of the adjustable throttle valves 14 to 19, fixed throttle plates or the like can also be used. Depending on requirements, the upper throttle valves 14 to 16 or the lower throttle valves 17 to 19 can also be dispensed with in whole or in part.

Die Ausführungsform der Vorrichtung nach Fig. 2 ist inebesondere zum Behandeln von besonders steifem bzw. relativ dickem Metallband 1 geeignet. Hierbei ist der Abstand von oberen Düsenkästen 20 bis 27 und unteren Düsenkästen 28 bis 34 zur Mittelebene 10 über die Länge des Metallbandes 1 in kleineren Schritten verändert als bei der Ausführungsform nach Fig. 1. Entsprechend flach ist somit die sinusförmige Linie, der das Metallband 1 bei seinem Transport durch die Vorrichtung folgt.The embodiment of the device according to FIG. 2 is particularly suitable for treating particularly stiff or relatively thick metal strip 1. Here, the distance from upper nozzle boxes 20 to 27 and lower nozzle boxes 28 to 34 to the central plane 10 is changed over the length of the metal strip 1 in smaller steps than in the embodiment according to FIG. 1. The sinusoidal line that the metal strip 1 is correspondingly flat is thus follows when it is transported through the device.

Auch bei dieser Ausführungsform können in Gasabzugskanälen 35 zwischen den einzelnen Düsenkästen 20 bis 34 nicht dargestellte Drosselvorrichtungen vorhanden sein.In this embodiment too, throttle devices (not shown) can be present in gas discharge channels 35 between the individual nozzle boxes 20 to 34.

Auch die Ausführungsform nach Fig. 3 ist insbesondere für relativ steifes und dickes Metallband 1 geeignet. Von den Düsenkästen 36 bis 53 sind die Düsenkästen 36 bis 38,42 bis 44,45 bis 47 und 51 bis 53 mit gleichem Abstand von der Mittelebene 10 angeordnet. Die Düsenkästen 39 bis 41 und 48 bis 50 haben andere, voneinander abweichende Abstände von der Mittelebene 10. Auch bei dieser Ausführungsform können in geeigneter Weise Drosselvorrichtungen in Gasabzugskanälen 54 zwischen den Düsenkästen 36 bis 53 vorgesehen sein.The embodiment according to FIG. 3 is also particularly suitable for relatively stiff and thick metal strip 1. Of the nozzle boxes 36 to 53, the nozzle boxes 36 to 38.42 to 44.45 to 47 and 51 to 53 are arranged at the same distance from the central plane 10. The nozzle boxes 39 to 41 and 48 to 50 have different, mutually different distances from the center plane 10. Also in this embodiment, throttle devices can be provided in a suitable manner in gas discharge channels 54 between the nozzle boxes 36 to 53.

Bei der Ausführungsform der Vorrichtung nach Fig. 4 sind sowohl oberhalb als auch unterhalb des Metallbandes 1 jeweils zwei nebeneinander angeordnete Düsenlkästen 55, 56; 58, 59; 61, 62; 64, 65 und 67, 68 mit gleichem Abstand von der Mittelebene 10 angeordnet. Zwischen jedem dieser Paare von Düsenkästen befindet sich ein einzelner Düsenkasten 57, 60, 63, 66 und 69 mit einem anderen Abstand von der Mittelebene 10.In the embodiment of the device according to FIG. 4, two nozzle boxes 55, 56; 58, 59; 61, 62; 64, 65 and 67, 68 arranged at the same distance from the central plane 10. Between each of these pairs of nozzle boxes there is a single nozzle box 57, 60, 63, 66 and 69 at a different distance from the central plane 10.

Bei der Ausführungsform der Vorrichtung nach Fig. 5 sind Düsenkästen 70 bis 84 vorgesehen, die nicht als Ganzes senkrecht zur Oberfläche des Metallbandes 1 oder der Mittelebene 10 versetzt angeordnet sind; vielmehr sind hier lediglich die mit Düsen versehenen Flächen der Düsenkästen 70 bis 84 in der dargestellten Weise eenkrecht zur Oberfläche des Metallbandes 1 und damit zur Mittelebene 10 versetzt angebracht.In the embodiment of the device according to FIG. 5, nozzle boxes 70 to 84 are provided which are not offset as a whole perpendicular to the surface of the metal strip 1 or the central plane 10; rather, here only the surfaces of the nozzle boxes 70 to 84 provided with nozzles are arranged perpendicular to the surface of the metal strip 1 and thus offset to the central plane 10 in the manner shown.

Claims (5)

1. Device for the contactless guiding of material webs, in particular metal webs, in a wave-like manner by means of a gas, with nozzle boxes arranged at a distance above and below the material web provided with one nozzle outlet plane each and between which gas outlet channels are provided above and below the material web, characterized in that the nozzle outlet planes of the nozzle boxes (20-34; 36-53; 55-69; 70-84) arranged above as well as below the material web (1), are either individually or in groups at various distances from an essentially horizontal plane (10) corresponding to the direction of transport of the material web (1), in that several nozzle boxes (20-34; 36-53; 55-69; 70-84) are allocated to each peak and/or each trough for the purpose of guiding in a wave-like motion, in that the position of the outlet planes of the nozzle boxes can be adjusted to the wave shape and in that the arrangement of the nozzle boxes (20-27; 36-44; 55-62; 70-77) above the material web (1) is staggered in the direction of transport in relation to the nozzle boxes (28-34; 45-53; 63-69; 78-84) below the material web (1).
2. Device in accordance with claim 1, characterized in that the nozzle boxes (20-34; 36-53; 55-69; 70-84) above and below the material web (1) are essentially distributed over the entire band width.
3. Device in accordance with one of the preceding claims, characterized in that the nozzle boxes (20-27; 36-44; 55-62; 70-77) above the material web (1) are staggered at right angles to the direction of transport in relation to the nozzle boxes (28-34; 45-53; 63-69; 78-84) below the material web (1).
4. Device in accordance with one of the preceding claims, characterized in that at least some of the nozzle boxes (20-34; 36-53; 55-69; 70-84) are adjustable vertically in relation to an essentially horizontal plane (10) corresponding to the direction of transport.
5. Device in accordance with claim 4, characterized in that at least some of the adjustable nozzle boxes (20-34; 36-53; 55-69; 70-84) can be adjusted jointly.
EP86101729A 1985-02-15 1986-02-12 Device for the contactless guiding of material webs, in particular metal webs, by means of a gas Expired - Lifetime EP0192169B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86101729T ATE57367T1 (en) 1985-02-15 1986-02-12 DEVICE FOR THE NON-CONTACT GUIDE OF WEBS, IN PARTICULAR METAL STRIPS, USING A GAS MEDIUM.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853505256 DE3505256A1 (en) 1985-02-15 1985-02-15 DEVICE FOR THE CONTACT-FREE LEADING OF TRACKS, IN PARTICULAR METAL BANDS, BY MEANS OF A GAS MEDIUM
DE3505256 1985-02-15

Publications (3)

Publication Number Publication Date
EP0192169A2 EP0192169A2 (en) 1986-08-27
EP0192169A3 EP0192169A3 (en) 1988-01-13
EP0192169B1 true EP0192169B1 (en) 1990-10-10

Family

ID=6262645

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86101729A Expired - Lifetime EP0192169B1 (en) 1985-02-15 1986-02-12 Device for the contactless guiding of material webs, in particular metal webs, by means of a gas

Country Status (6)

Country Link
US (1) US4785985A (en)
EP (1) EP0192169B1 (en)
JP (2) JPS61248848A (en)
AT (1) ATE57367T1 (en)
DE (1) DE3505256A1 (en)
ES (1) ES8704844A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988008950A1 (en) * 1987-05-09 1988-11-17 Kurt Krieger Device for float conveying of material webs
US5431755A (en) * 1993-04-24 1995-07-11 Vits Maschinenbau Gmbh Method of and arrangement for thermal treatment of continuously moving metal bands
EP0787964A1 (en) 1996-02-08 1997-08-06 Vits Maschinenbau Gmbh Flotation dryer, in particular offset dryer
US11268762B2 (en) 2017-03-08 2022-03-08 Ebner Industrieofenbau Gmbh Gas-cushion-type strip-supporting system having a nozzle system

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6353222A (en) * 1986-08-22 1988-03-07 Daido Steel Co Ltd Heat treatment furnace
JPH0616919Y2 (en) * 1989-05-02 1994-05-02 中外炉工業株式会社 Non-contact continuous heat treatment furnace for metal strip
US5201132A (en) * 1991-04-26 1993-04-13 Busch Co. Strip cooling, heating or drying apparatus and associated method
US5152080A (en) * 1991-06-25 1992-10-06 W. R. Grace & Co.-Conn. Steerable air bar/edge dam apparatus
DE4306584C1 (en) * 1993-03-03 1994-07-07 Langbein & Engelbrecht Device for the floating guidance of a material web
US5611151A (en) * 1994-06-10 1997-03-18 Busch Co. Strip cooling, heating, wiping or drying apparatus and associated method
US5590480A (en) * 1994-12-06 1997-01-07 W. R. Grace & Co.-Conn. combination air bar and hole bar flotation dryer
DE19701426C2 (en) * 1997-01-17 2002-07-11 Babcock Bsh Gmbh Dryer for band or plate-shaped goods
DE19727326A1 (en) * 1997-06-27 1999-01-07 Voith Sulzer Finishing Gmbh Roll cutting device
US6207020B1 (en) * 1998-05-12 2001-03-27 International Paper Company Method for conditioning paper and paperboard webs
DE10229368B4 (en) * 2002-06-29 2007-04-05 Moenus Textilmaschinen Gmbh Recirculating air dryer for webs
US7125473B2 (en) * 2003-09-12 2006-10-24 International Paper Company Apparatus and method for conditioning a web on a papermaking machine
JP4501713B2 (en) * 2005-02-09 2010-07-14 シンフォニアテクノロジー株式会社 Air levitation transfer device
WO2007016688A1 (en) 2005-08-02 2007-02-08 New Way Machine Components, Inc. A method and a device for depositing a film of material or otherwise processing or inspecting, a substrate as it passes through a vacuum environment guided by a plurality of opposing and balanced air bearing lands and sealed by differentially pumped groves and sealing lands in a non-contact manner
DE102007059390B3 (en) * 2007-12-10 2009-06-25 Eastman Kodak Company Paper transporting unit for e.g. inkjet printer, has guide units arranged on sides of rollers and defining wavy guidance path, and housing cover suspended around pivotable axis such that it is pivoted away relative to another housing cover
KR101354592B1 (en) * 2012-07-31 2014-01-23 (주)하드램 Film laser slitting apparatus and method
JP5879314B2 (en) * 2012-09-28 2016-03-08 富士フイルム株式会社 Film levitation device, tenter, solution casting equipment and method
DE102016102093B3 (en) * 2016-02-05 2017-06-14 Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh Continuous cooling device and method for cooling a metal strip
CN108099225B (en) * 2017-12-18 2023-10-31 金发科技股份有限公司 Alternating pressure melting impregnation equipment and melting impregnation method

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1193468B (en) * 1960-05-02 1965-05-26 Artos Maschb Dr Ing Meier Wind Nozzle housing for flotation dryer
GB1125652A (en) * 1966-02-08 1968-08-28 Ass Elect Ind Improvements relating to strip heating or cooling
US3485429A (en) * 1966-07-16 1969-12-23 Erwin Kampf Mas Fab Bielstein Device for heating and drying a material web by suspension in a tunnel
FR2102901A5 (en) * 1970-08-28 1972-04-07 Kobayashi Tadashi Water-type fire extinguishers - contg freezing pt depressants
IT951025B (en) * 1971-04-28 1973-06-30 Monforts Fa A PLANT FOR THE DRIVING AND TRANSPORT IN THE FLOATING STATE OF MATTER EXTENDED IN WIDTH
SE393825B (en) * 1974-05-29 1977-05-23 Svenska Flaektfabriken Ab DEVICE FOR WHEN TRANSPORTING A BAN OR SHEET OF AIR-SUPPORTED MATERIAL, IN FRONT OF THE MATERIAL IN A FIXED STABLE FLOATING THROUGH ONE OR SEVERAL PASSENGERS OF A TREATMENT FACILITY, PREFERRED ...
SE393826B (en) * 1974-05-29 1977-05-23 Svenska Flaektfabriken Ab ARRANGEMENTS THAT WHEN TRANSPORTING A BAN OR SHEET OF AIR-SUPPORTED MATERIAL, IN FRONT OF THE MATERIAL IN A FIXED STABLE FLOATING THROUGH ONE OR SEVERAL FLOORS OF A TREATMENT PLANT, ONE ...
SE404909B (en) * 1975-01-24 1978-11-06 Svenska Flaektfabriken Ab DEVICE FOR TRANSPORTING A RAILWAY MATERIAL THROUGH A TREATMENT PLANT
US4069595A (en) * 1975-01-24 1978-01-24 Aktiebolaget Svenska Flaktfabriken Arrangement for conveying web material through a treating plant
US3957187A (en) * 1975-02-11 1976-05-18 James Puigrodon Methods and apparatus for transporting and conditioning webs
US3982327A (en) * 1975-05-01 1976-09-28 Midland-Ross Corporation Air-dispensing web-floating apparatus
DE2521017B2 (en) * 1975-05-12 1981-06-19 Erich 5630 Remscheid Hilgeroth Device for treating webs of material, in particular metal strips
JPS5472847A (en) * 1977-11-22 1979-06-11 Fuji Photo Film Co Ltd Method of conveying web
JPS5514838A (en) * 1978-07-15 1980-02-01 Daido Steel Co Ltd Heat-treating method for aluminum strip
US4292745A (en) * 1978-08-29 1981-10-06 Caratsch Hans Peter Air foil nozzle dryer
DE2908348A1 (en) * 1979-03-03 1980-09-04 Vits Maschinenbau Gmbh FLOATING DRYER
JPS5696030A (en) * 1979-12-29 1981-08-03 Chugai Ro Kogyo Kaisha Ltd Float conveyor type furnace and heat treatment furnace
DE3019527A1 (en) * 1980-05-22 1982-01-14 Bayer Ag, 5090 Leverkusen FLAME-RESISTANT, TRANSPARENT POLYCARBONATE
JPS59113127A (en) * 1982-12-17 1984-06-29 Kawasaki Steel Corp Method and device for floating strip stably in floating furnace
DE3318861C1 (en) * 1983-05-25 1984-11-08 Vits-Maschinenbau Gmbh, 4018 Langenfeld Device for the floating guiding of material webs, in particular with a heating device for annealing aluminum strips

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988008950A1 (en) * 1987-05-09 1988-11-17 Kurt Krieger Device for float conveying of material webs
US5431755A (en) * 1993-04-24 1995-07-11 Vits Maschinenbau Gmbh Method of and arrangement for thermal treatment of continuously moving metal bands
EP0787964A1 (en) 1996-02-08 1997-08-06 Vits Maschinenbau Gmbh Flotation dryer, in particular offset dryer
US11268762B2 (en) 2017-03-08 2022-03-08 Ebner Industrieofenbau Gmbh Gas-cushion-type strip-supporting system having a nozzle system

Also Published As

Publication number Publication date
EP0192169A2 (en) 1986-08-27
JPH0623953U (en) 1994-03-29
ES552345A0 (en) 1987-04-16
ES8704844A1 (en) 1987-04-16
ATE57367T1 (en) 1990-10-15
DE3505256C2 (en) 1987-01-29
JPS61248848A (en) 1986-11-06
EP0192169A3 (en) 1988-01-13
DE3505256A1 (en) 1986-08-28
US4785985A (en) 1988-11-22

Similar Documents

Publication Publication Date Title
EP0192169B1 (en) Device for the contactless guiding of material webs, in particular metal webs, by means of a gas
EP0367022B1 (en) Adjustable flat-sheet extrusion die
EP0649821B1 (en) Apparatus for heating or cooling of flat glass sheets or strips
DE3635961A1 (en) INDUCTIVE HEATING EQUIPMENT
EP1729900B1 (en) Device for cooling metal sheets and strips
DE3612720C2 (en)
EP0907476B1 (en) Blower nozzle
EP0807591A1 (en) Air cushion nozzle and heat treatment apparatus for a running web with air cushion nozzles
DE102006019310A1 (en) Heat sink for the controller of an electric machine
EP0864518B1 (en) Bed of air cushion nozzles to guide webs in a floating manner
DE102005054995B4 (en) Nozzle system for the treatment of sheet material
DE19804184A1 (en) Device for floating guidance of tapes
EP0513631B1 (en) Device for cooling a flat product, in particular a metal strip
DE3904774C1 (en)
DE102006032377B4 (en) Nozzle field for floating guidance and stabilization of metal bands
DE102018219289B3 (en) Method and device for loading a material web with a gas stream
DE102019105167B3 (en) Suspension furnace
EP1035385B1 (en) Method for temperature control of a hall and device for curring out this method
EP1373817B2 (en) Cooling grid for a bulk material cooling device
DE3711761C2 (en) Device for interlacing multifilament yarns
EP0004081A2 (en) Shaft-type cooler
EP0177917B1 (en) Tunnel furnace with two paralel ducts
EP2975332A1 (en) Air duct assembly for a ceiling jet outlet and method
WO2006092198A1 (en) Veneer dryer
EP0216328A2 (en) Supply air outlet system for space ventilation

Legal Events

Date Code Title Description
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

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT CH FR GB IT LI SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT CH FR GB IT LI SE

17P Request for examination filed

Effective date: 19880415

17Q First examination report despatched

Effective date: 19890619

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT CH FR GB IT LI SE

REF Corresponds to:

Ref document number: 57367

Country of ref document: AT

Date of ref document: 19901015

Kind code of ref document: T

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
ITF It: translation for a ep patent filed

Owner name: SOCIETA' ITALIANA BREVETTI S.P.A.

ET Fr: translation filed
ITTA It: last paid annual fee
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
EAL Se: european patent in force in sweden

Ref document number: 86101729.1

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20040119

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20040217

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20040220

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20040223

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20040224

Year of fee payment: 19

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050212

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050212

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050212

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050213

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050228

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050228

EUG Se: european patent has lapsed
GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20050212

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20051031

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20051031