EP1149935A2 - Procédé et appareil pour traiter des surfaces de bandes métalliques, en particulier pour décaper des bandes laminées - Google Patents

Procédé et appareil pour traiter des surfaces de bandes métalliques, en particulier pour décaper des bandes laminées Download PDF

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Publication number
EP1149935A2
EP1149935A2 EP01110311A EP01110311A EP1149935A2 EP 1149935 A2 EP1149935 A2 EP 1149935A2 EP 01110311 A EP01110311 A EP 01110311A EP 01110311 A EP01110311 A EP 01110311A EP 1149935 A2 EP1149935 A2 EP 1149935A2
Authority
EP
European Patent Office
Prior art keywords
transport direction
channel
pickling
belt
belt transport
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Withdrawn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
EP01110311A
Other languages
German (de)
English (en)
Other versions
EP1149935A3 (fr
Inventor
Bodo Dr. Block
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.)
SMS Siemag AG
Original Assignee
SMS Demag AG
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 SMS Demag AG filed Critical SMS Demag AG
Publication of EP1149935A2 publication Critical patent/EP1149935A2/fr
Publication of EP1149935A3 publication Critical patent/EP1149935A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G3/00—Apparatus for cleaning or pickling metallic material
    • C23G3/02—Apparatus for cleaning or pickling metallic material for cleaning wires, strips, filaments continuously
    • C23G3/024—Apparatus for cleaning or pickling metallic material for cleaning wires, strips, filaments continuously by a combination of dipping and spraying

Definitions

  • the invention relates to a method and a device for treating the surfaces of metallic strip material, in particular for pickling rolled material, which in a pickling tank transported through a treatment channel and with an acidic Pickling medium is sprayed in jets.
  • the object of the invention is, in the case of band qualities (steel qualities) that are difficult to obtain, which are driven at a relatively low belt speed, which increase necessary turbulence effect and thus the available At least better use or reduce treatment time.
  • the object is achieved according to the invention in that within Longitudinal sections of the treatment channel in at least formed over the strip material, Separating spaces running transversely to the belt transport direction, at least in each case the pickling medium in a nozzle tube transversely to the belt transport direction in one Separation space is injected.
  • the transport of the Pickling medium in the belt transport direction are limited, but still a desired Turbulence is achieved.
  • the pickling medium is transverse to Belt transport direction in the separation space on and / or in a separation space below the strip material is injected.
  • the desired turbulence effect can, if necessary be extended to both belt surfaces.
  • the pickling medium is drained through an overflow in the sewer ceiling becomes.
  • the object is achieved in a device for treating the surfaces of metallic strip material, in particular for pickling rolled material; that in a pickling tank can be transported through a treatment channel which is closed on the circumference an acidic pickling medium flows through the pickling tank, by means of nozzle pipes from rows of nozzles running transversely to the belt transport direction at the channel entrance in the tape transport direction and at the channel exit against the Belt transport direction can be injected, according to the invention solved in that in the Treatment channel on the channel ceiling, each running transversely to the belt transport direction Flow internals spaced apart in the belt transport direction are provided and that between two adjacent flow internals as well Additional, adjustable spray nozzles are provided across the belt transport direction are.
  • the main advantage of this training is the increase in turbulence flow even at relatively low belt speeds. Also here are the ones for that To cite the advantages described.
  • the direction transverse to the tape transport directed spray nozzles on both long sides of the treatment channel are arranged. This can create opposing currents and a further turbulence gain can be achieved.
  • Another embodiment provides that the flow internals on the channel ceiling in the middle of two sliding blocks spaced apart in the direction of tape transport Channel floor are arranged. This also creates favorable turbulence Pickling medium achieved.
  • the duct ceiling there is an intermediate cover on which the flow internals are formed.
  • the intermediate cover serves as the basis for attaching the flow internals at the right distance from the conveyor belt and for further functional solutions, the following are described.
  • the simplest cross section is a rectangular cross section.
  • a side of the treatment channel Overflow is arranged in the sewer ceiling for the pickling medium.
  • the overflow can further supplemented by pressure relief channels in the middle of the treatment channel with openings on the top of the intermediate cover.
  • a further distribution of the pickling medium is advantageously possible by that the spray nozzles directed transversely to the belt transport direction are in an angular range of approx. 140 ° each half to the vertical in relation to the tape transport direction are adjustable.
  • the device for treating the surfaces of metallic strip material 1 (Fig. 1 and 2), in particular for pickling rolled material, is arranged in a pickling tank 2 and forms a treatment channel 3 closed on the circumference, the Belt material 1 can be driven continuously by means of pairs of rollers.
  • the pickling tank 2 is flowed through by an acidic pickling medium 4, which by means of nozzle pipes 5a in Jets 5 from nozzle rows 5b running transversely to the tape transport direction 7 flows and strikes the surfaces of the strip material 1 in order to clean it, e.g. to descale.
  • the beams 5 run in the tape transport direction 7 and at the channel exit 12 opposite to the tape transport direction 7.
  • Flow internals 13 are provided, so that separation spaces 8 result. Between is in each case two adjacent flow internals 13 of a separation space 8 a spray nozzle 5c arranged essentially transversely to the tape transport direction 7.
  • the spray nozzles 5c are on the two long sides 3a of the treatment channel 3 arranged and can change together or per long side 3a at intervals be operated.
  • the flow internals 13 are on the channel ceiling 10 in the middle of two spaced in the tape transport direction 7 Sliding blocks 14 arranged in the channel floor 15.
  • the duct ceiling 10 (FIG. 3) consists of an intermediate cover 16, on which the flow internals 13, which consist of different profile strips 13a can exist, are trained.
  • the spray nozzles 5c directed transversely to the tape transport direction 7 can be in one Angular range of approx. 140 ° in each case half on the vertical to the tape transport direction 7 related, can be adjusted in angle.
  • opposite Spray nozzles 5c are directed into the other corner surfaces of the separation space 8.
  • the method of treating the surfaces of metallic tape e.g. when pickling rolled material from steel strip, it is exercised in such a way that the strip material 1 is continuously transported through the treatment channel 3 of the pickling tank 2.
  • the strip material 1 is sprayed with an acidic pickling medium 4 in jets 5.
  • Within the longitudinal sections 6 of the treatment channel 3 are at least formed over the belt 1, extending transversely to the belt transport direction 7
  • Separation rooms 8 each arranged spray nozzles 5c, which in addition to the rows of nozzles 5b, which inject pickling medium 4 at the channel entrance 11 and at the channel exit 12, Inject further pickling medium 4 into the respective separation space 8 on the strip material 1.
  • the movement of the strip material 1 in the strip transport direction 7 leads to a desired turbulence in the pickling medium 4.
EP01110311A 2000-04-27 2001-04-26 Procédé et appareil pour traiter des surfaces de bandes métalliques, en particulier pour décaper des bandes laminées Withdrawn EP1149935A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2000120634 DE10020634A1 (de) 2000-04-27 2000-04-27 Turbulenzbeize mit seitlicher Eindüsung
DE10020634 2000-04-27

Publications (2)

Publication Number Publication Date
EP1149935A2 true EP1149935A2 (fr) 2001-10-31
EP1149935A3 EP1149935A3 (fr) 2003-07-23

Family

ID=7640099

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01110311A Withdrawn EP1149935A3 (fr) 2000-04-27 2001-04-26 Procédé et appareil pour traiter des surfaces de bandes métalliques, en particulier pour décaper des bandes laminées

Country Status (2)

Country Link
EP (1) EP1149935A3 (fr)
DE (1) DE10020634A1 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0058216A1 (fr) * 1981-02-18 1982-08-25 MANNESMANN Aktiengesellschaft Appareil pour le traitement chimique ou électrochimique de surfaces d'objets dans un milieu liquide chauffé, en particulier pour le décapage de bandes
EP0323467B1 (fr) * 1986-08-29 1991-04-03 MANNESMANN Aktiengesellschaft Installation pour le traitement de surface de feuillards defilant en continu, notamment installation de decapage
DE4108516A1 (de) * 1990-03-16 1991-09-19 Hitachi Ltd Hochgeschwindigkeits-beizvorrichtung und hochgeschwindigkeits-beizverfahren
US5282485A (en) * 1991-01-16 1994-02-01 Mitsubishi Jukogyo Kabushiki Kaisha Jet pickling apparatus
EP0795629A1 (fr) * 1996-03-14 1997-09-17 Andritz-Patentverwaltungs-Gesellschaft m.b.H. Appareil de traitement de surfaces de bandes à l'aide de liquides
EP0984080A1 (fr) * 1998-03-11 2000-03-08 Mitsubishi Heavy Industries, Ltd. Dispositif de decapage
FR2784998A1 (fr) * 1998-10-22 2000-04-28 Kvaerner Metals Clecim Installation de decapage d'une bande metallique
EP1054079A1 (fr) * 1999-05-20 2000-11-22 Danieli Corporation Procédé et appareil pour le traitement à grande vitesse de bandes

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0058216A1 (fr) * 1981-02-18 1982-08-25 MANNESMANN Aktiengesellschaft Appareil pour le traitement chimique ou électrochimique de surfaces d'objets dans un milieu liquide chauffé, en particulier pour le décapage de bandes
EP0323467B1 (fr) * 1986-08-29 1991-04-03 MANNESMANN Aktiengesellschaft Installation pour le traitement de surface de feuillards defilant en continu, notamment installation de decapage
DE4108516A1 (de) * 1990-03-16 1991-09-19 Hitachi Ltd Hochgeschwindigkeits-beizvorrichtung und hochgeschwindigkeits-beizverfahren
US5282485A (en) * 1991-01-16 1994-02-01 Mitsubishi Jukogyo Kabushiki Kaisha Jet pickling apparatus
EP0795629A1 (fr) * 1996-03-14 1997-09-17 Andritz-Patentverwaltungs-Gesellschaft m.b.H. Appareil de traitement de surfaces de bandes à l'aide de liquides
EP0984080A1 (fr) * 1998-03-11 2000-03-08 Mitsubishi Heavy Industries, Ltd. Dispositif de decapage
FR2784998A1 (fr) * 1998-10-22 2000-04-28 Kvaerner Metals Clecim Installation de decapage d'une bande metallique
EP1054079A1 (fr) * 1999-05-20 2000-11-22 Danieli Corporation Procédé et appareil pour le traitement à grande vitesse de bandes

Also Published As

Publication number Publication date
EP1149935A3 (fr) 2003-07-23
DE10020634A1 (de) 2001-10-31

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