EP2619338A1 - Four continu pour une bande en particulier métallique - Google Patents

Four continu pour une bande en particulier métallique

Info

Publication number
EP2619338A1
EP2619338A1 EP11773212.3A EP11773212A EP2619338A1 EP 2619338 A1 EP2619338 A1 EP 2619338A1 EP 11773212 A EP11773212 A EP 11773212A EP 2619338 A1 EP2619338 A1 EP 2619338A1
Authority
EP
European Patent Office
Prior art keywords
continuous furnace
belt
sensor
roller
impact device
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.)
Withdrawn
Application number
EP11773212.3A
Other languages
German (de)
English (en)
Inventor
Jochen Bogner
Thomas Mayr
Ewald Illetschko
Gerald Kasberger
Hermann Ibermayr
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.)
Voestalpine Stahl GmbH
Original Assignee
Voestalpine Stahl 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 Voestalpine Stahl GmbH filed Critical Voestalpine Stahl GmbH
Publication of EP2619338A1 publication Critical patent/EP2619338A1/fr
Withdrawn legal-status Critical Current

Links

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
    • 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
    • F27B9/145—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 along a serpentine path
    • 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
    • F27B9/2407—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 rollers (roller hearth furnace)
    • 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

Definitions

  • the invention relates to a continuous furnace for a particular metallic strip with at least one leading through the continuous furnace furnace roller, with a continuous furnace at least partially provided sensor for determining the position of the belt in the continuous furnace, which sensor is spaced from the band, and at least one in the strip running direction before and / or after the sensor arranged impacting means for protecting the sensor from a tape contact before a tape contact with the tape performed, wherein the impacting means is arranged in relation to the sensor at least partially spaced closer to the tape.
  • tape touches can result in significant material loads, so that a material failure of the impact device can not be excluded.
  • a defective impact device does not ensure safe protection of the sensor, a stable continuous furnace can thus not be created.
  • the continuous furnace should be stable and inexpensive.
  • the impacting device has at least one roller for belt contact driven by a drive in accordance with the direction of travel of the belt. If the impact device has at least one roller for belt contact driven by a drive corresponding to the direction of travel of the belt, the risk of belt damage can be reduced in a structurally simple manner. Namely, cause unwanted tape movements of the tape, which is guided by means of at least one furnace roller through the continuous furnace, only to impinge on a corresponding driven according to the tape direction roller, so that held with a reduced relative speed between the roller and tape any damage low or excluded can be. In addition, by a first rotating role already their starting torque is overcome, so that when a band touch the force loads on the impact device can be reduced.
  • the impact device according to the invention therefore not only allows a stable continuous furnace, but can also reduce or eliminate the risk of material damage to the belt, whereby the continuous furnace over the prior art is particularly distinguished.
  • the impact device according to the invention is comparatively simple to implement constructively, which can provide a cost-effective continuous furnace.
  • the roller runs along with the tape, in which case the peripheral speed of the roller need not necessarily coincide with the tape speed.
  • the risk of belt damage can be further reduced and the stability of the continuous furnace can be further improved if the circumferential speed of the roller of the impactor corresponds to the belt speed of the belt.
  • the risk of cracking can be reduced by this special rotation of the role in thin-walled bands.
  • the rollers take the tape at its own belt speed, which can avoid additional tensile, stowage or other loads on the belt.
  • the circumferential speed of the roller of the impact device corresponds to that of the peripheral speed of the previously arranged in the belt running direction furnace roller.
  • an already existing and usually extremely complex speed control of furnace rollers can be used to equalize the speed control of the impact device.
  • the impact device according to the invention offers a cost-effective alternative for retrofitting purposes of existing continuous furnaces, because only the speed of the respective furnace roller has to be tapped for control purposes. It goes without saying that the circumferential speed of the preceding furnace roll can also be provided by other means. Data lines, interfaces of controllers and measuring devices are examples of such possibilities.
  • the roller of the impacting device has a drive independent of the other furnace rollers, then a uniform thorough heating of the roller can always be ensured.
  • Adverse changes in the dimensions of the role, in particular a bowl of this, can be excluded in a simple manner, which can provide a comparatively stable continuous furnace.
  • the durability of the rollers and thus the stability of the continuous furnace can be further improved if water cooling is provided for cooling the roller of the impact device.
  • a water cooling of the sensor for particularly reproducible measurement results - even at different temperature conditions in the continuous furnace - provide, which can provide a universally applicable continuous furnace.
  • a cobalt-based metal coating particularly CoCrAlY, has been found to be advantageous in the role of the impactor. Extremely high resistance of the roll to adverse environmental conditions in the oven and low tendency to scratch on the belt can characterize this coating.
  • Fig. 1 is a schematic and torn side view of a portion of the continuous furnace and
  • Fig. 2 is an enlarged sectional view of the impact device according to the invention. Way to carry out the invention
  • a continuous furnace 1 is shown in a schematic view as an exemplary embodiment, which is shown up and torn off.
  • a continuous furnace 1 can be understood to mean any furnace through which a belt 2 is moved, whether pulled, pushed or otherwise moved.
  • a continuous furnace 1 can also be designed as a jet tube furnace, which has not been shown in detail.
  • a metallic strip 2, in particular a steel strip is now carried out via a castor frame 5 having a plurality of furnace rolls 3 and 4.
  • the furnace rollers 3 and 4 are set according to the tape speed of each drive 6 via a drive shaft 6 'rotating in motion, the drives are arranged outside of the continuous furnace.
  • a sensor 7 is further arranged, which makes an inductive detection of the position of the performed and tensioned tape 2 in the continuous furnace 1 with its not shown transmitting and receiving coil.
  • the transmitting and receiving coil can be arranged in a sensor housing or in different housings.
  • the sensor 7 also has a comparatively brittle ceramic shell 8.
  • an impact device 10 is provided in the belt running direction 9 before and after the sensor 7. As shown in Fig. 1, now the impactor 10 carries the kinematic energy of the belt movement of the belt 2, and thus prevents the belt 2 can bulge in the direction of the sensor 7.
  • the sensor 7 is further spaced from the belt with respect to the impact devices 10 - in other words, the impact device 10 is at least partially spaced closer to the belt 2 in relation to the sensor 7.
  • the senor 7 is spaced further away from the belt 2 with respect to the impact devices 10 - in other words, the impact device 10 is arranged at least partially closer in the direction of the belt 2 being carried out in comparison to the sensor 7.
  • the impact device 10 is normally contactless with respect to the continuous belt 2. However, to avoid damaging the tape 2 due to eventual len impact with the impactor 10, preferably to exclude such damage, the impactor 10 is carried out as a set in rotation roller 1 1.
  • the impactor 10 has a driven by a drive 12 corresponding to the tape running direction 9 roller 1 1 for tape contact, which has the direction of rotation 1 1 '.
  • the roller 1 1 therefore already rotates before a possible impact of the belt 2, so that it comes with a touch of tape 2 with roller 1 1 to a reduced relative speed and thus reduced friction. Any resulting notches can thus be reduced or eliminated, thereby avoiding scratches in the strip surface.
  • the continuous furnace 1 according to the invention can therefore essentially rule out band damage.
  • the force loads on the roller 1 1 can be reduced because this roller 1 1 is already in the impact during the impact, so that a stable continuous furnace 1 can be ensured.
  • the drive 12 is connected via a drive shaft 12 'to the roller 1 1.
  • Such a drive 6 or 12 can be understood, for example, as a motor, as a motor together with a gear unit or as another device for rotating the rollers 3, 4 or 11, which has not been shown for the sake of clarity.
  • a sensor 7 and impact devices 10 are likewise provided in order to be able to detect measurement data for any side of the belt 2.
  • the rollers 1 1 also rotate here in accordance with the direction of tape travel 9 and have a corresponding direction of rotation 1 1 ", but it is also conceivable to provide the transmitting and receiving coil on opposite sides of the band in each case, so that the sensor 7 is on both sides of the band located.
  • the rollers 11 can also be rotated in accordance with the band speed of the belt 2 prevailing in their area. For this purpose must only the peripheral speed of the roller 1 1 of the Anpralleinnchtung 10 of the belt speed of the belt 2 correspond. By means of sensors, not shown, this belt speed can now be measured or deduced therefrom and then used to control the drive 12 of the rollers 11.
  • the peripheral speed of the roller 1 1 of the impact device 10 of the peripheral speed of the previously arranged in the strip running direction furnace roller 4 is set accordingly.
  • the drive 12 can be used. It is also conceivable for the drive 12 of the rollers 1 1 to use the drive 6 of the oven roller 4 - only a gear ratio in the case of different diameters of the rollers 6 and 1 1, which is the case of FIG. 1, would be for the rollers. 1 1 to provide corresponding to the peripheral speeds of the rollers 4 and 1 1, which is not shown.
  • the independent of the other furnace rollers 3 and 4 drive 12 may also be useful that in the case of a stoppage of the belt 2, the rollers 1 1 are still driven.
  • the rollers 1 1 are still driven.
  • a water cooling 13 can be seen, which is used for cooling the rollers 1 1.
  • the rollers 1 1 on a cavity 14, can be passed through the water 15 as a coolant.
  • the sensors can also be cooled with the water cooling system 13, as well as water is passed through the jacket as a coolant, which has not been shown in detail.
  • roller 1 1 of the impact device 10 is provided with a metal coating 16 based on cobalt, in particular CoCrAIY, wherein the surface of the roller 1 1 can be polished and brushed.

Landscapes

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

Abstract

L'invention concerne un four continu pour une bande (2) en particulier métallique, comprenant au moins un rouleau de four (3 ou encore 4) guidant la bande (2) à travers le four continu (1), un capteur (7) qui est situé au moins en partie dans le four continu (1), qui sert à déterminer la position de la bande (2) dans le four continu (1) et qui (7) est disposé à une certaine distance de la bande (2), et au moins un dispositif anticollision (10) qui est disposé avant et/ou après le capteur (7) dans le sens de défilement de la bande (9) et qui sert à protéger le capteur (7) de tout contact avec la bande (2) traversante, le dispositif anticollision (10) étant au moins en partie plus près de la bande (2) que le capteur (7). L'invention a pour but d'exclure tout risque d'endommagement de la bande. A cet effet, le dispositif anticollision (10) présente au moins un rouleau (11) de contact avec la bande qui est entraîné par un entraînement (12) dans le sens de défilement de la bande (9).
EP11773212.3A 2010-09-21 2011-09-21 Four continu pour une bande en particulier métallique Withdrawn EP2619338A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT15712010A AT510468B1 (de) 2010-09-21 2010-09-21 Durchlaufofen für ein insbesondere metallisches band
PCT/EP2011/066451 WO2012038479A1 (fr) 2010-09-21 2011-09-21 Four continu pour une bande en particulier métallique

Publications (1)

Publication Number Publication Date
EP2619338A1 true EP2619338A1 (fr) 2013-07-31

Family

ID=44936233

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11773212.3A Withdrawn EP2619338A1 (fr) 2010-09-21 2011-09-21 Four continu pour une bande en particulier métallique

Country Status (3)

Country Link
EP (1) EP2619338A1 (fr)
AT (1) AT510468B1 (fr)
WO (1) WO2012038479A1 (fr)

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3421925A (en) * 1965-07-30 1969-01-14 Westinghouse Electric Corp Method for producing improved metallic strip material
US3622140A (en) * 1970-01-30 1971-11-23 Nat Steel Corp Continuous heat treating line
DE3463162D1 (en) * 1983-06-11 1987-05-21 Nippon Steel Corp Method for cooling a steel strip in a continuous-annealing furnace
CA1280190C (fr) * 1986-09-30 1991-02-12 Yasuhiro Yamaguchi Methode et dispositif pour controler la traction subie par un feuillard lors du passage dans un four de recuit en continu
AT396559B (de) * 1990-12-20 1993-10-25 Voest Alpine Ind Anlagen Brammen-stranggiessanlage mit nachgeordnetem walzwerk
JPH06210225A (ja) * 1993-01-19 1994-08-02 Matsushita Electric Ind Co Ltd 粘性体塗布装置
JPH0813043A (ja) * 1994-07-04 1996-01-16 Nippon Steel Corp ストリップ張力制御装置
DE19619049A1 (de) * 1996-05-02 1997-11-06 Rolf Schwartz Verfahren zum Wärmebehandeln
US6341955B1 (en) * 1998-10-23 2002-01-29 Kawasaki Steel Corporation Sealing apparatus in continuous heat-treatment furnace and sealing method
KR20030054324A (ko) * 2001-12-24 2003-07-02 주식회사 포스코 연속소둔공정의 스트립 위치조정장치
DE10303228B3 (de) * 2003-01-28 2004-04-15 Kramer, Carl, Prof. Dr.-Ing. Vorrichtung zur Wärmebehandlung metallischer Bänder im Durchlauf
JP4325218B2 (ja) * 2003-02-26 2009-09-02 Ｊｆｅスチール株式会社 欠陥マークのマーキング方法および欠陥マークをマーキングした金属帯
KR20100007588A (ko) * 2008-07-14 2010-01-22 주식회사 포스코 스트립 이송장치

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
None *
See also references of WO2012038479A1 *

Also Published As

Publication number Publication date
AT510468A1 (de) 2012-04-15
AT510468B1 (de) 2012-07-15
WO2012038479A1 (fr) 2012-03-29

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