EP0058216A1 - Apparatus for the chemical or electrochemical treatment of surfaces of objects in a heated liquid medium, in particular for pickling sheets - Google Patents

Apparatus for the chemical or electrochemical treatment of surfaces of objects in a heated liquid medium, in particular for pickling sheets Download PDF

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Publication number
EP0058216A1
EP0058216A1 EP81101143A EP81101143A EP0058216A1 EP 0058216 A1 EP0058216 A1 EP 0058216A1 EP 81101143 A EP81101143 A EP 81101143A EP 81101143 A EP81101143 A EP 81101143A EP 0058216 A1 EP0058216 A1 EP 0058216A1
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EP
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Prior art keywords
displacement body
chemical
liquid
bath
immersing
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Granted
Application number
EP81101143A
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German (de)
French (fr)
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EP0058216B1 (en
Inventor
Walter Mindt
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Vodafone GmbH
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Mannesmann AG
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Application filed by Mannesmann AG filed Critical Mannesmann AG
Priority to AT81101143T priority Critical patent/ATE15236T1/en
Priority to EP81101143A priority patent/EP0058216B1/en
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    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D7/00—Electroplating characterised by the article coated
    • C25D7/06—Wires; Strips; Foils
    • C25D7/0614—Strips or foils
    • 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
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
    • C25D17/02—Tanks; Installations therefor
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
    • C25F7/00—Constructional parts, or assemblies thereof, of cells for electrolytic removal of material from objects; Servicing or operating

Definitions

  • the invention relates to a device for chemical or electrochemical surface treatment of material to be treated in a heated liquid treatment medium consisting of a lidded liquid container, in particular B andbeizstrom, wherein the belt surface to reduce the evaporation surface is partly coverable.
  • the invention thus relates to all types of so-called process lines, in which materials such as. B. steel strip, wire or pipes are treated on the surface.
  • the surface treatment can e.g. B. pickling, cleaning, coating, etc. include.
  • the material to be treated can pass through the treatment medium or be placed in the liquid bath over a specific treatment time.
  • the problem underlying the invention is explained below with reference to a strip pickling line for continuous strip steel.
  • the Ba is / surfactant dober- depending on design of the plant 1000-200 mm above the surface of the running steel strip.
  • these containers have free evaporation surfaces from 2 to 400 m 2 .
  • the total heat requirement is approx. 21 kJ / h (5 million kcal / h).
  • the evaporation loss of these plants i. H. the resulting gas can be removed from the system by a suitable extraction system, whereby in most cases these extracted gases are aggressive and must be cleaned by a cleaning system in accordance with legal regulations before they are released into the atmosphere via an exhaust air chimney.
  • the invention has for its object to optimize the coverage of the evaporation surface of the bath and thereby reduce the heat requirement of the evaporation portion as much as possible.
  • This object is achieved according to the invention by at least one displacement body immersed in the liquid bath, the one with its outline compared to the horizontal cross section of the liquid bath.
  • the minimal evaporation surface surrounding the displacement body leaves free. It is obvious that the reduction in the free evaporation surface which is obtained in this way can save by far the largest proportion of the evaporation losses.
  • the amount of gas to be extracted is also reduced by the invention, as a result of which the suction device can be kept correspondingly smaller. Accordingly, the aggressive vapors can be cleaned more economically.
  • the saving in thermal energy for a strip pickling line of the aforementioned type is around 90% of the share of evaporation energy and 45% of the share of total thermal energy.
  • the saving in volume of the gases to be extracted is around 90%.
  • the effect of the treatment medium on the material to be treated can be increased to 10%.
  • the displacement body is expediently attached to the container lid, so that it comes into its immersing operative position when the lid is closed.
  • the displacement body can also be placed on supports arranged inside the container, for example on electrodes.
  • the strip pickling system shown in FIG. 1 serves for pickling a steel strip 1 which is pulled through the pickling tank 7.
  • the pickling tank is filled with an inorganic acid as treatment medium 2, the evaporation surface 3 of which is greatly reduced by an immersing displacement body 4.
  • the U-shaped hollow body 4 is in each case attached to a container lid 5 and adapted to the course of the belt, i. H. it has a flat bottom.
  • all displacement bodies 4 are protected on the underside with wear ribs 6 against mechanical damage from the belt 1.
  • Fig. 2 clearly shows that the displacement body with its outline compared to the horizontal cross section of the liquid, bath 2 leaves only a minimal evaporation surface 3, which surrounds the evaporation body. If the displacer 4 is placed on supports arranged inside the container 7, the free evaporation surface can be reduced even further, since an attachment of the displacer to the pivotably mounted container lid, because of the pivoting arrangement of the displacer, a certain clearance between the side walls of the displacer and the same container walls demands.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)

Abstract

1. Apparatus for the chemical or electro-chemical treatment of surfaces of objects in a heated liquid medium, comprising a liquid tank (7) with a lid (5), particularly a sheet pickling plant, in which the liquid surface of the bath and thus the evaporation surface is reduced by immersing members (4) which can be removed out of their operative position for inserting and removing the material to be treated, characterized in that the immersing members (4) have a U-shaped cross-section and form a unit with the lids (5) of the tank in their covering operating position and in that the outer contour of the immersing members compared with the horizontal cross-section of the liquid bath (2) leds free a minimum evaporation surface (2) surrounding the immersing members.

Description

Die Erfindung betrifft eine Vorrichtung zur chemischen oder elektro-chemischen Oberflächenbehandlung von Behandlungsgut in einem erwärmten flüssigen Behandlungsmedium, bestehend aus einem mit einem Deckel versehenen Flüssigkeitsbehälter, insbesondere Bandbeizanlage, bei der die Bandoberfläche zur Verringerung der Verdampfungsoberfläche teilweise abdeckbar ist. Die Erfindung bezieht sich somit auf alle Arten von sogenannten Prozeßlinien, in denen durch Behandlungsmedien, die über Raumtemperatur erwärmt sind, Materialien wie z. B. Bandstahl, Draht oder Rohre an der Oberfläche behandelt werden. Die Oberflächenbehandlung kann z. B. Beizen, Reinigen, Beschichten usw. umfassen. Das Behandlungsgut kann durch das Behandlungsmedium durchlaufen oder über eine bestimmte Behandlungszeit in das Flüssigkeitsbad eingelegt werden.The invention relates to a device for chemical or electrochemical surface treatment of material to be treated in a heated liquid treatment medium consisting of a lidded liquid container, in particular B andbeizanlage, wherein the belt surface to reduce the evaporation surface is partly coverable. The invention thus relates to all types of so-called process lines, in which materials such as. B. steel strip, wire or pipes are treated on the surface. The surface treatment can e.g. B. pickling, cleaning, coating, etc. include. The material to be treated can pass through the treatment medium or be placed in the liquid bath over a specific treatment time.

Das der Erfindung zugrunde liegende Problem ist im folgenden anhand einer Bandbeizanlage für durchlaufenden Bandstahl näher erläutert. Bei derartigen Bandbeizanlagen mit mehreren hintereinander angeordneten Beizbehältern liegt die Ba/dober- fläche je nach Konzeption der Anlage zwischen 1000 und 200 mm über der Oberfläche des durchlaufenden Bandstahls. Je nach Durchsatzmenge und Materialabmessung haben diese Behälter freie Verdampfungsoberflächen von 2 bis 400 m2. Bei einer Bandbeizanlage für die Bandabmessung 1350 x 2,7 mm und einer Stundenleistung von 180 t beträgt der Gesamtwärmebedarf ca. 21 kJ/h (5 Mio kcal/h).The problem underlying the invention is explained below with reference to a strip pickling line for continuous strip steel. In such Pickling Plants with several pickling tanks arranged one after another, the Ba is / surfactant dober- depending on design of the plant 1000-200 mm above the surface of the running steel strip. Depending on the throughput and material dimensions, these containers have free evaporation surfaces from 2 to 400 m 2 . With a strip pickling line for the strip dimensions 1350 x 2.7 mm and an hourly output of 180 t, the total heat requirement is approx. 21 kJ / h (5 million kcal / h).

Aufgeschlüsselt teilt sich dieser Wärmebedarf in etwa wie folgt auf

  • - für die Materialerwärmung ca. 9,24 kJ/h (2,2 Mio kcal/h)
  • - für Oberflächenabstrahlung ca. 1,26 kJ/h (300 000 kcal/h)
  • - Verdampfungsenergie durch die freie Oberfläche des Behandlungsmediums ca. 10,5 kJ/h (2,5 Mio kcal/h).
This heat requirement is broken down roughly as follows
  • - for material heating approx.9.24 kJ / h (2.2 million kcal / h)
  • - for surface radiation approx.1.26 kJ / h (300 000 kcal / h)
  • - Evaporation energy through the free surface of the treatment medium approx. 10.5 kJ / h (2.5 million kcal / h).

Des weiteren muß der Verdampfungsverlust dieser Anlagen, d. h. das hieraus entstehende Gas, durch eine geeignete Absaugung aus der Anlage abgeführt werden, wobei in den meisten Fällen diese abgesaugten Gase aggressiv sind und durch eine Reinigungsanlage entsprechend den gesetzlichen Vorschriften gereinigt werden müssen, bevor sie über einen Abluftkamin in die Atmosphäre abgegeben werden.Furthermore, the evaporation loss of these plants, i. H. the resulting gas can be removed from the system by a suitable extraction system, whereby in most cases these extracted gases are aggressive and must be cleaned by a cleaning system in accordance with legal regulations before they are released into the atmosphere via an exhaust air chimney.

Zur Einsparung von Verdampfungsverlusten ist es bekannt, die Oberfläche des Flüssigkeitsbades durch eine Vielzahl von schwimmfähigen Kugeln abzudecken (FR-PS 1 192 877). Diese Art der Abdeckung erlaubt es zwar, das Behandlungsgut ungehindert durch die schwimmfähigen Kugeln hierdurch in das Bad einzulegen und wieder herauszunehmen, jedoch ist dabei die prozentuale Verringerung der Badoberfläche deshalb nicht optimal, weil die Kugeln, selbst wenn sie alle dicht aneinanderstoßen würden, aufgrund ihrer Geometrie stets einen gewissen Freiraum zwischen sich belassen würden. Auch könnten die Kugeln durch Turbulenzien im Flüssigkeitsbad in Bewegung geraten und hierdurch zusätzliche freie Verdampfungsoberflächen schaffen.To save on evaporation losses, it is known to cover the surface of the liquid bath with a large number of floating balls (FR-PS 1 192 877). Although this type of cover allows the material to be treated to be freely inserted into and removed from the bath by the floatable balls, the percentage reduction in the bath surface area is not optimal because the balls, even if they would all come together, due to their Geometry would always leave a certain amount of space between them. The balls could also start to move due to turbulence in the liquid bath and thereby create additional free evaporation surfaces.

Der Erfindung liegt die Aufgabe zugrunde, die Abdeckung der Verdampfungsoberfläche des Bades zu optimieren und dadurch den Wärmebedarf des Verdunstungsanteils soweit wie möglich zu reduzieren. Diese Aufgabe wird gemäß der Erfindung gelöst durch mindestens einen in das Flüssigkeitsbad eintauchenden Verdrängungskörper, der mit seinem Umriß gegenüber dem waagerechten Querschnitt des Flüssigkeitsbades eine den Verdrängungskörper umgebende minimale Verdampfungsoberfläche freiläßt. Es ist einleuchtend, daß mit der hierdurch erhaltenen Verringerung der freien Verdampfungsoberfläche der weitaus größte Anteil der Verdampfungsverluste eingespart werden kann. Weiterhin wird durch die Erfindung ebenso die abzusaugende Gasmenge reduziert, wodurch die Absaugeeinrichtung entsprechend kleiner gehalten werden kann. Dementsprechend können die aggressiven Dämpfe kostensparender gereinigt werden.The invention has for its object to optimize the coverage of the evaporation surface of the bath and thereby reduce the heat requirement of the evaporation portion as much as possible. This object is achieved according to the invention by at least one displacement body immersed in the liquid bath, the one with its outline compared to the horizontal cross section of the liquid bath The minimal evaporation surface surrounding the displacement body leaves free. It is obvious that the reduction in the free evaporation surface which is obtained in this way can save by far the largest proportion of the evaporation losses. Furthermore, the amount of gas to be extracted is also reduced by the invention, as a result of which the suction device can be kept correspondingly smaller. Accordingly, the aggressive vapors can be cleaned more economically.

Die Einsparung an Wärmenergie liegt bei einer Bandbeizanlage der vorerwähnten Bauart bei ca. 90 % vom Anteil der Verdampfungsenergie und 45 % vom Anteil der Gesamtwärmeenergie. Die Einsparung am Volumen der abzusaugenden Gase liegt bei ca. 90 %. Die Wirkung des Behandlungsmediums auf das zu behandelnde Material kann bis auf 10 % erhöht werden.The saving in thermal energy for a strip pickling line of the aforementioned type is around 90% of the share of evaporation energy and 45% of the share of total thermal energy. The saving in volume of the gases to be extracted is around 90%. The effect of the treatment medium on the material to be treated can be increased to 10%.

Der Verdrängungskörper wird zweckmäßig am Behälterdeckel befestigt, so daß er mit dem Schließen des Deckels in seine eintauchende Wirklage gelangt. Der Verdrängungskörper kann jedoch auch auf innerhalb des Behälters angeordnete Stützen aufgelegt werden, beispielsweise auf Elektroden.The displacement body is expediently attached to the container lid, so that it comes into its immersing operative position when the lid is closed. However, the displacement body can also be placed on supports arranged inside the container, for example on electrodes.

Um den Verdrängungskörper gegen mechanische Beschädigungen durch ein durch das Flüssigkeitsbad gezogenes Band oder dergleichen zu schützen, empfiehlt es sich, an seiner Unterseite Schleißrippen anzubringen. Insbesondere in Verbindung mit derartigen Schleißrippen ist es vorteilhaft, daß der Verdrängungskörper mit seiner Unterseite bis nahe an das durchlaufende Behandlungsgut reicht, so daß das Behandlungsmedium durch die in diesem Falle beim Durchfluten entstehende Turbulenz in seiner Wirkung auf das zu behandelnde Material verstärkt wird.In order to protect the displacement body against mechanical damage caused by a tape or the like drawn through the liquid bath, it is advisable to attach wear ribs to its underside. Particularly in connection with such wear ribs, it is advantageous that the displacement body extends with its underside close to the material to be treated, so that the effect of the treatment medium on the material to be treated is increased by the turbulence which occurs in this case when it is flooded.

In der Zeichnung ist als Ausführungsbeispiel der Erfindung eine Bandbeizanlage dargestellt. Es zeigen:

  • Fig. 1 einen Längsschnitt durch einen Beizbehälter und
  • Fig. 2 einen Querschnitt.
In the drawing, a strip pickling line is shown as an exemplary embodiment of the invention. Show it:
  • Fig. 1 shows a longitudinal section through a pickling tank and
  • Fig. 2 shows a cross section.

Die in Fig. 1 dargestellte Bandbeizanlage dient zum Beizen eines Stahlbandes 1, das durch den Beizbehälter 7 hindurchgezogen wird. Der Beizbehälter ist mit einer anorganischen Säure als Behandlungsmedium 2 gefüllt, deren Verdampfungsoberfläche 3 durch einen eintauchenden Verdrängungskörper 4 stark reduziert ist. Der U-förmig als Hohlkörper ausgebildete Verdrängungskörper 4 ist jeweils an einem Behälterdeckel 5 befestigt und dem Bandverlauf angepaßt, d. h. er hat eine ebene Unterseite. Außerdem sind alle Verdrängungskörper 4 an der Unterseite mit Schleißrippen 6 gegen mechanische Beschädigungen durch das Band 1 geschützt.The strip pickling system shown in FIG. 1 serves for pickling a steel strip 1 which is pulled through the pickling tank 7. The pickling tank is filled with an inorganic acid as treatment medium 2, the evaporation surface 3 of which is greatly reduced by an immersing displacement body 4. The U-shaped hollow body 4 is in each case attached to a container lid 5 and adapted to the course of the belt, i. H. it has a flat bottom. In addition, all displacement bodies 4 are protected on the underside with wear ribs 6 against mechanical damage from the belt 1.

Fig. 2 zeigt deutlicht, daß der Verdrängungskörper mit seinem Umriß gegenüber dem waagerechten Querschnitt des Flüssigkeits-, bades 2 nur eine minimale Verdampfungsoberfläche 3 freiläßt, die den Verdampfungskörper umgibt. Wenn der Verdrängungskörper 4 auf innerhalb des Behälters 7 angeordnete Stützen aufgelegt wird, kann die freie Verdampfungsoberfläche noch weiter verringert werden, da eine Befestigung des Verdrängungskörpers an dem schwenkbar gelagerten Behälterdeckel wegen der mitschwenkenden Anordnung des Verdrängungskörpers ein gewisses Freimaß zwischen den Seitenwänden des Verdrängungskörpers und iden Behälterwänden fordert.Fig. 2 clearly shows that the displacement body with its outline compared to the horizontal cross section of the liquid, bath 2 leaves only a minimal evaporation surface 3, which surrounds the evaporation body. If the displacer 4 is placed on supports arranged inside the container 7, the free evaporation surface can be reduced even further, since an attachment of the displacer to the pivotably mounted container lid, because of the pivoting arrangement of the displacer, a certain clearance between the side walls of the displacer and the same container walls demands.

Claims (5)

1. Vorrichtung zur chemischen oder elektro-chemischen Oberflächenbehandlung von Behandlungsgut in einem erwärmten flüssigen Behandlungsmedium, bestehend aus einem mit einem Deckel (5) versehenen Flüssigkeitsbehälter (7), insbesondere Bandbeizanlage, bei der die Badoberfläche zur Verringerung der Verdampfungsoberfläche teilweise abdeckbar ist,
gekennzeichnet durch mindestens einen in das Flüssigkeitsbad (2) eintauchenden Verdrängungskörper (4), der mit seinem Umriß gegenüber dem waagerechten Querschnitt des Flüssigkeitsbades (2) eine den Verdrängungskörper umgebende minimale Verdampfungsoberfläche (3) freiläßt.1. Device for the chemical or electro-chemical surface treatment of material to be treated in a heated liquid treatment medium, consisting of a liquid container (7) provided with a lid (5), in particular a strip pickling system, in which the bath surface can be partially covered to reduce the evaporation surface,
characterized by at least one displacement body (4) immersed in the liquid bath (4), the outline of which leaves a minimal evaporation surface (3) surrounding the displacement body exposed compared to the horizontal cross section of the liquid bath (2). 2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Verdrängungskörper (4) am Behälterdeckel (5) befestigt ist.2. Device according to claim 1, characterized in that the displacement body (4) on the container lid (5) is attached. 3. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Verdrängungskörper (4) auf innerhalb des Behälters (7) angeordnete Stützen auflegbar ist.3. Apparatus according to claim 1, characterized in that the displacement body (4) on the inside of the container (7) arranged supports can be placed. 4. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Verdrängungskörper (4) an seiner Unterseite mit Schleißrippen (6) versehen ist.4. The device according to claim 1, characterized in that the displacement body (4) is provided on its underside with wear ribs (6). 5. Vorrichtung nach Anspruch 1 oder 4, dadurch gekennzeichnet, daß der Verdrängungskörper (4) mit seiner Unterseite bis nahe an das durchlaufende Behandlungsgut (1) reicht.5. Apparatus according to claim 1 or 4, characterized in that the displacement body (4) extends with its underside up to close to the material being treated (1).
EP81101143A 1981-02-18 1981-02-18 Apparatus for the chemical or electrochemical treatment of surfaces of objects in a heated liquid medium, in particular for pickling sheets Expired EP0058216B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AT81101143T ATE15236T1 (en) 1981-02-18 1981-02-18 DEVICE FOR CHEMICAL OR ELECTROCHEMICAL SURFACE TREATMENT OF PRODUCTS TO BE TREATED IN A HEATED LIQUID TREATMENT MEDIUM, PARTICULARLY STRIP SEALING PLANT.
EP81101143A EP0058216B1 (en) 1981-02-18 1981-02-18 Apparatus for the chemical or electrochemical treatment of surfaces of objects in a heated liquid medium, in particular for pickling sheets

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP81101143A EP0058216B1 (en) 1981-02-18 1981-02-18 Apparatus for the chemical or electrochemical treatment of surfaces of objects in a heated liquid medium, in particular for pickling sheets

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Publication Number Publication Date
EP0058216A1 true EP0058216A1 (en) 1982-08-25
EP0058216B1 EP0058216B1 (en) 1985-08-28

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987004192A1 (en) * 1986-01-13 1987-07-16 Maschinenfabrik Andritz Actiengesellschaft Device and process for treating the surface of strips with liquids
WO1988001657A1 (en) * 1986-08-29 1988-03-10 Mannesmann Ag Installation for surface treatment of continuous-flow strip, in particular degreasing installation
WO1988005832A1 (en) * 1987-02-05 1988-08-11 Maschinenfabrik Andritz Aktiengesellschaft Process and device for the surface treatment of strips with fluids
WO1993003203A1 (en) * 1991-08-03 1993-02-18 Eastman Kodak Company Silver recovery device
BE1005217A3 (en) * 1990-10-08 1993-06-01 Four Industriel Belge Method and apparatus for degreasing pickling and son or metal bands or similar items.
EP0699779A1 (en) 1994-08-30 1996-03-06 SUNDWIGER EISENHÜTTE MASCHINENFABRIK GmbH & CO. Surface treatment apparatus for treating objects with a treatment solution, in particular for pickling strip
EP0795629A1 (en) * 1996-03-14 1997-09-17 Andritz-Patentverwaltungs-Gesellschaft m.b.H. Apparatus for strip surface treatment with liquids
EP0926268A1 (en) * 1997-11-28 1999-06-30 Andritz-Patentverwaltungs-Gesellschaft m.b.H. Method and apparatus for guiding a strip in a treatment bath
EP0984079A1 (en) * 1998-03-11 2000-03-08 Mitsubishi Heavy Industries, Ltd. Pickling device
EP0984080A1 (en) * 1998-03-11 2000-03-08 Mitsubishi Heavy Industries, Ltd. Pickling device
EP1149935A2 (en) * 2000-04-27 2001-10-31 SMS Demag AG Process and apparatus for treating metal strip surfaces, in particular for pickling rolled strips
EP1167578A1 (en) * 2000-06-23 2002-01-02 SMS Demag AG Apparatus for treating elongated metallic work pieces, in particular for pickling rolled strip

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2628627A (en) * 1947-08-09 1953-02-17 Ernest L Huff Apparatus for treating continuous products
JPS4611561Y1 (en) * 1967-12-12 1971-04-21

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2628627A (en) * 1947-08-09 1953-02-17 Ernest L Huff Apparatus for treating continuous products
JPS4611561Y1 (en) * 1967-12-12 1971-04-21

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
CHEMICAL ABSTRACTS, Band 92, Nr. 26, Juni 1980, seite 235, Nr. 219271x Columbus, Ohio, U.S.A. & JP-A-54 039179 (Nippon Steel Corp.) 26-11-1979 * Zusammenfassung * *

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987004192A1 (en) * 1986-01-13 1987-07-16 Maschinenfabrik Andritz Actiengesellschaft Device and process for treating the surface of strips with liquids
WO1988001657A1 (en) * 1986-08-29 1988-03-10 Mannesmann Ag Installation for surface treatment of continuous-flow strip, in particular degreasing installation
US4928717A (en) * 1986-08-29 1990-05-29 Mannesmann Ag Equipment for surface treatment of continuously, running strips particularly pickling equipment
WO1988005832A1 (en) * 1987-02-05 1988-08-11 Maschinenfabrik Andritz Aktiengesellschaft Process and device for the surface treatment of strips with fluids
JPH01501875A (en) * 1987-02-05 1989-06-29 マシーネンファブリック　アンドリッツ　アクチエンゲゼルシャフト Apparatus and method for surface treatment of metal strip with liquid
JPH0579754B2 (en) * 1987-02-05 1993-11-04 Andritz Ag Maschf
BE1005217A3 (en) * 1990-10-08 1993-06-01 Four Industriel Belge Method and apparatus for degreasing pickling and son or metal bands or similar items.
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EP1149935A2 (en) * 2000-04-27 2001-10-31 SMS Demag AG Process and apparatus for treating metal strip surfaces, in particular for pickling rolled strips
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Also Published As

Publication number Publication date
ATE15236T1 (en) 1985-09-15
EP0058216B1 (en) 1985-08-28

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