EP0302057A1 - Procede et dispositif de traitement de la surface de bandes avec des fluides. - Google Patents

Procede et dispositif de traitement de la surface de bandes avec des fluides.

Info

Publication number
EP0302057A1
EP0302057A1 EP87900997A EP87900997A EP0302057A1 EP 0302057 A1 EP0302057 A1 EP 0302057A1 EP 87900997 A EP87900997 A EP 87900997A EP 87900997 A EP87900997 A EP 87900997A EP 0302057 A1 EP0302057 A1 EP 0302057A1
Authority
EP
European Patent Office
Prior art keywords
pickling
pickling tank
guide bar
strip
profiles
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP87900997A
Other languages
German (de)
English (en)
Other versions
EP0302057B1 (fr
Inventor
Emil Hula
Johann Deyer
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.)
Andritz AG
Original Assignee
Andritz 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 Andritz AG filed Critical Andritz AG
Priority to AT87900997T priority Critical patent/ATE57717T1/de
Publication of EP0302057A1 publication Critical patent/EP0302057A1/fr
Application granted granted Critical
Publication of EP0302057B1 publication Critical patent/EP0302057B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • C23G3/021—Apparatus for cleaning or pickling metallic material for cleaning wires, strips, filaments continuously by dipping

Definitions

  • the invention relates to a device for the surface treatment of strips with liquids, in particular for pickling rolled metal strips.
  • this system is characterized in that the hot strip is pushed through the system, at most with simultaneous passage of several strips, whereby the qualitative advantages of a continuous pickle are achieved in a simple manner.
  • the known thrust pickles consist of an elongated, cross-sectionally shaped pickling tank, which is at most provided with dividing walls for the simultaneous treatment of several strips, which divide the channel into several parallel channels and can be inserted into or lifted from the tank depending on the desired channel width .
  • the strip is pushed, for example, by a straightening machine provided at the entrance of the pickling tank through the tank, which is flooded with pickling acid. It is known to inject the pickling acid on the bottom, for example, in order to achieve a buoyancy by means of which the strip is also supplied with fresh pickling acid on the underside and is guided through the pickling tank.
  • Pickling tank is usually closed by a lid which, according to DE-OS 30 00 408, can be provided on the bath side with box-shaped internals immersed in the pickling bath in order to reduce the bath surface and thus reduce the energy consumption, which is largely due to the evaporation of the pickling acid is caused.
  • wear ribs are provided which run on the bath-side surface of the internals transversely to the direction of movement of the band.
  • the object of the invention is to provide measures to remedy the last-mentioned danger. This object is achieved in that, in a device of the type described at the outset, in which the strip to be treated is passed through a trough-shaped container, a device is provided above the strip to guide it in the desired direction of movement when the strip is raised. This enables throughput speeds of over 200 m / min to be achieved.
  • Such a device can be, for example, a cover with sawtooth-like profiles that run obliquely in the running direction of the band.
  • such profiles can be formed from resistant material by successive strips, guide beams, plates or the like which are inserted into the pickling tank and which are bevelled on the strip inlet side. These strips, guide beams, plates or the like. may, apart from the bevel, have a rectangular cross section and extend transversely to the band movement and be divided or undivided.
  • 1 and 1a is a partial longitudinal view of the device partially in section
  • FIG. 3 shows section A of the device according to FIG. 1 on a larger scale
  • FIG. 9 shows a detail of the container according to FIG. 8,
  • FIG. 10 is a plan view of the container of FIG. 8,
  • Fig. 12 is a section on the line XII-XII of Fig. 11, and 13a to 13c different embodiments of guide beams used in the device.
  • the device consists of a Abhaspei 1, which at most for the simultaneous recording of several
  • Bundles can consist of independent drain drums. From there, the strip 10 is advanced to a straightening machine 2 after the bundle has been opened beforehand. This machine not only serves to straighten the strip, it also ensures that the strips are pushed through the system to the first pair of transport rollers 6 and further until the start of the strip is taken up by the reel 9.
  • the strip enters the pickling tank 3 and is pushed there through shallow pickling cups which are flooded with pickling acid from an underlying pickling tank.
  • the belt is rinsed, possibly aftertreated and finally dried and runs over pulling rollers to the reel 9 (Fig. 1,2).
  • the pickling tank 3 is closed by a lid 4.
  • 7 guide bars 11 are arranged one behind the other below the cover on opposite longitudinal shoulders 5 of the side walls, which can extend as far as the liquid level.
  • the leading edge of the guide beams running transversely to the strip running direction is chipped off or damaged, the edges 12 of the guide beams 11 facing the leading strip and transverse to the strip running direction are chamfered, so that the guide beams 11 arranged one behind the other above the strip 10 have a sawtooth-like ceiling in them Form the running direction of the belt, as the flanks rise obliquely or in the case of the teeth standing upside down. If the band 10 rises with a longitudinal section of the same or with the leading beginning and arrives at the guide beam 11, it is deflected downwards by the latter or by the inclined surfaces 12 '(FIG. 3).
  • the steering devices and the lids which are independent of this, form a double seal between the pickling channel and the atmosphere.
  • An intermediate space is formed between the steering devices and the lids independent thereof, in which an air cushion is formed, in which a limited part of the hydrogen gas formed during the pickling process can pass through the gaps remaining between the steering devices. Together with this hydrogen gas, a small amount of acid vapor inevitably gets into the gap. These gases and vapors, which are now diluted by air, are sucked out of this space through a nozzle 14 in the cover 4. Despite the fact that the pickling bath surface is not reduced, this reduces the acid evaporation and thus the loss of thermal energy (Fig. 4).
  • a number of pickling tanks of the type described can be provided, with a pair of transport or squeezing rollers 8 (FIG. 3) between each of these pickling tanks, between which the belt 10 passes and the majority of the pickling acid is removed.
  • the two rollers 8 ', 8 "of the squeezing roller pair 8 are arranged offset from one another in such a way that the upper roller 8', seen in the direction in which the belt 10 is pushed through, is located behind the lower roller 8" and which separates the pickling liquids of the individual sections is provided with a sealing lip 13. At least one of the two squeeze rollers can be driven.
  • belt side guides 15 (FIGS. 1 and 2) are arranged, for example, in front of the last pair of squeezing rollers of the pickling tub, which are adjustable for the different belt widths. 5 and 7, there are two opposing carriages 16, 16 ', each of which runs on two pairs of rollers 17 and 17' which are guided in guides 18, each carriage having a rack 19 and a rack 19, respectively . 19 'carries which mesh with a gearwheel located jointly in the longitudinal central axis and thereby ensures a synchronized movement of the two carriages 16, 16'.
  • Each of the two carriages 16 and 16 ' is connected to a hydraulic cylinder 21 and 21', which move the carriages 16 and 16 'towards each other and against each other.
  • the gearwheel 20 it is also possible for one cylinder 21 to move the carriages 16, 16 'to one another and the other cylinder 21' to move the carriages from one another or vice versa.
  • Each of the two carriages 16, 16 ' carries on the underside a carrier 22, 22', which consists of a plate 23, 23 'of acid-resistant material, preferably of ceramic, wear-resistant material, which is brought up to the beginning of the band in order to do this center.
  • the belt start is centered at the point in time when the belt start has just passed the centering jaws but has not yet been pinched by the transport rollers.
  • Fig. 8 shows a cross section of the pickling tank 3 with a preferred embodiment of the bottom, which starts on both sides from the side walls 7, slightly inclined down to the bottom center.
  • pipe sockets 24 are arranged on the side walls 7 at intervals along the pickling tank 3, which open out laterally at an angle and serve to supply pickling liquid.
  • semicircular depressions 25 are provided in the bottom, which also run obliquely to the center and meet there. The longitudinal component of the flow of the pickling liquid is thus directed in the opposite direction to the strip running. So that the tape does not get caught on the edges of the depressions 25 an edge 26 of the same is rounded (FIG. 9).
  • the measures mentioned, namely a slightly oblique shape of the bottom and arrangement of the depressions with the pipe sockets result in a fluidically favorable guidance of the pickling liquid within the pickling tank 3.
  • the pickling liquid is prevented from shooting up when there is no band in the pickling tank 3.
  • the slightly sloping shape of the base also achieves a certain degree of self-centering of the belt when it is moved in the longitudinal direction.
  • overflow chambers 27 are provided at the side walls 7 at a distance from the transport and squeeze rollers, as shown in FIG vertically arranged sliders for overflowing the pickling liquid are provided.
  • the liquid level in the pickling tub can be adjusted by means of the height-adjustable slide 28 or flaps and the like.
  • the bevel on the underside of the belt inlet and only over part of the width of the guide beam 11.
  • the bevel extends over the entire width of the guide beam 11a.
  • the bevel extends on the strip outlet side over part of the width of the guide beam 11b.
  • the bevel runs over the entire width of the guide bar 11c along a curve, for example in the form of an arc of a circle or exponentially.
  • a multiple bevel for example twice, is finally provided.
  • the angle or maximum angle (with curved bevel) is 2 to 10 ", preferably 5 ° .

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
  • Coating Apparatus (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • ing And Chemical Polishing (AREA)

Abstract

Un dispositi de traitement de la surface de bandes avec des fluides, en particulier de corrosion de bandes métalliques laminées, comprend un récipient de corrosion (3) fermé par un couvercle (4), à travers lequel on fait passer la bande (10). Un dispositif agencé entre la bande (10) et le couvercle (4) guide la bande dans la direction d'avancement lorsque la bande est soulevée. Le dispositif peut être composé de parties profilées en dents de scie. Ces parties profilées peuvent prendre la forme de traverses de guidage (11) chanfreinées du côté d'admission de la bande.
EP87900997A 1987-02-05 1987-02-05 Procede et dispositif de traitement de la surface de bandes avec des fluides Expired - Lifetime EP0302057B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87900997T ATE57717T1 (de) 1987-02-05 1987-02-05 Vorrichtung und verfahren zur oberflaechenbehandlung von baendern mit fluessigkeiten.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/AT1987/000005 WO1988005832A1 (fr) 1987-02-05 1987-02-05 Procede et dispositif de traitement de la surface de bandes avec des fluides

Publications (2)

Publication Number Publication Date
EP0302057A1 true EP0302057A1 (fr) 1989-02-08
EP0302057B1 EP0302057B1 (fr) 1990-10-24

Family

ID=3682502

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87900997A Expired - Lifetime EP0302057B1 (fr) 1987-02-05 1987-02-05 Procede et dispositif de traitement de la surface de bandes avec des fluides

Country Status (8)

Country Link
US (1) US4986291A (fr)
EP (1) EP0302057B1 (fr)
JP (1) JPH01501875A (fr)
AT (1) ATE57717T1 (fr)
BR (1) BR8707657A (fr)
DE (1) DE3765779D1 (fr)
SU (1) SU1690547A3 (fr)
WO (1) WO1988005832A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT394734B (de) * 1988-11-15 1992-06-10 Andritz Ag Maschf Verfahren und anlage zum beizen von edelstahlbaendern
US5179967A (en) * 1991-08-28 1993-01-19 Nelson Steel Apparatus for rinsing metal strip
FR2709079B1 (fr) * 1993-08-17 1995-11-10 Clecim Sa Installation de traitement d'un produit en bande.
US5566694A (en) * 1995-06-07 1996-10-22 Allegheny Plastics, Inc. Continuous pickling tank with expandable seals
US5803981A (en) * 1997-01-13 1998-09-08 Danieli Wean, A Division Of Danieli Corporation Method and apparatus for continuous pickling of metal strip
AT407759B (de) 1997-11-28 2001-06-25 Andritz Patentverwaltung Verfahren und vorrichtung zum oberflächenbehandeln von bändern mit flüssigkeiten
US6096183A (en) * 1997-12-05 2000-08-01 Ak Steel Corporation Method of reducing defects caused by conductor roll surface anomalies using high volume bottom sprays
AT408765B (de) * 1999-03-05 2002-03-25 Andritz Ag Maschf Anlage zur kontinuierlichen behandlung von stahlbändern
DE10032717A1 (de) * 2000-07-07 2002-01-17 Sms Demag Ag Anlage zur Oberflächenbehandlung von kontinuierlich einen Behandlungsbehälter durchlaufenden Bändern
US9089887B2 (en) * 2012-12-10 2015-07-28 Samuel Steel Pickling Company Line threading device and method

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1671810A (en) * 1926-02-23 1928-05-29 Edward G Caughey Annealing apparatus
US1998192A (en) * 1933-12-22 1935-04-16 Arthur B Haswell Means for guiding and cooling rolled metal
US2418386A (en) * 1942-01-17 1947-04-01 Goodman Mfg Co Continuous pickling and cleaning device for metal
US2650599A (en) * 1948-12-15 1953-09-01 United States Steel Corp Continuous pickling apparatus
US2868540A (en) * 1954-08-16 1959-01-13 Herr Equipment Corp Guide apparatus
BE559389A (fr) * 1956-07-20
US3048503A (en) * 1958-06-19 1962-08-07 Crucible Steel Co America Pickling apparatus and method
DE1146325B (de) * 1959-06-02 1963-03-28 Langbein Pfanhauser Werke Ag Vorrichtung zur Konstanthaltung der Salzkonzentration der Behandlungs-fluessigkeiten, insbesondere beim Galvanisieren und Phosphatieren
US3346255A (en) * 1966-06-01 1967-10-10 Varityper Corp Liquid treatment of sheets
US3417907A (en) * 1967-04-28 1968-12-24 United States Steel Corp Yieldable entry guide for strip-processing line
US3803996A (en) * 1969-10-13 1974-04-16 Ceilcote Co Inc Acid pickle tank covers
US3738629A (en) * 1971-03-04 1973-06-12 Dorn Co V Bar quench fixture
GB1333943A (en) * 1971-07-29 1973-10-17 Mulcahy E W Pickling metals
US4167424A (en) * 1976-05-12 1979-09-11 National Steel Corporation Treatment of metal strip with ultrasonic energy and apparatus therefor
SU820916A1 (ru) * 1979-06-14 1981-04-15 Славянский Филиал Всесоюзного Научно- Исследовательского И Проектно- Конструкторского Институтаметаллургического Машиностроения Устройство дл очистки длинномерныхиздЕлий
ATE15236T1 (de) * 1981-02-18 1985-09-15 Mannesmann Ag Vorrichtung zur chemischen oder elektrochemischen oberflaechenbehandlung von behandlungsgut in einem erwaermten fluessigen behandlungsmedium, insbesondere bandbeizanlage.
DE3149086A1 (de) * 1981-12-11 1983-06-16 Dr. C. Otto & Comp. Gmbh, 4630 Bochum Behaelter zum beizen von baendern
JPS59160000A (ja) * 1983-02-28 1984-09-10 Kawasaki Steel Corp ストリツプ連続電気めつきのエツジオ−バ−コ−ト防止装置
DE8618433U1 (de) * 1986-07-10 1986-09-11 Keramchemie GmbH, 5433 Siershahn Beizvorrichtung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8805832A1 *

Also Published As

Publication number Publication date
JPH0579754B2 (fr) 1993-11-04
BR8707657A (pt) 1989-08-15
US4986291A (en) 1991-01-22
SU1690547A3 (ru) 1991-11-07
WO1988005832A1 (fr) 1988-08-11
ATE57717T1 (de) 1990-11-15
JPH01501875A (ja) 1989-06-29
EP0302057B1 (fr) 1990-10-24
DE3765779D1 (de) 1990-11-29

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