EP0142010A1 - Procédé et appareil pour le dépôt électrolytique de métaux - Google Patents

Procédé et appareil pour le dépôt électrolytique de métaux Download PDF

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Publication number
EP0142010A1
EP0142010A1 EP84111959A EP84111959A EP0142010A1 EP 0142010 A1 EP0142010 A1 EP 0142010A1 EP 84111959 A EP84111959 A EP 84111959A EP 84111959 A EP84111959 A EP 84111959A EP 0142010 A1 EP0142010 A1 EP 0142010A1
Authority
EP
European Patent Office
Prior art keywords
electrolyte
metal strip
strip
area
anodes
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
EP84111959A
Other languages
German (de)
English (en)
Other versions
EP0142010B1 (fr
Inventor
Werner Dipl.-Ing. Bechem
Hubertus Dipl.-Ing. Peters
Werner Solbach
Dietrich Dr. Ing. Wolfhard
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.)
Hoesch AG
Original Assignee
Hoesch 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 Hoesch AG filed Critical Hoesch AG
Priority to AT84111959T priority Critical patent/ATE31560T1/de
Publication of EP0142010A1 publication Critical patent/EP0142010A1/fr
Application granted granted Critical
Publication of EP0142010B1 publication Critical patent/EP0142010B1/fr
Expired legal-status Critical Current

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Classifications

    • 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
    • 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
    • C25D7/0628—In vertical cells

Definitions

  • the invention relates to a method for the electrolytic deposition of metals; especially zinc; from aqueous solutions of metal. alze on metal tape; in particular steel strip; using high relative flow velocities between the electrolyte and the metal strip and the anodes; the metal band being inserted vertically into the electrolyte; is deflected and led vertically out of the electrolyte and a device for performing this method; in the metal band above an electrolysis cell. assigned and outlet, a deflection roller and / or a current roller are each provided; and the metal strip is guided in the lower part of the electrolysis cell around an immersion roller and in the inlet area and outlet area between anodes.
  • Methods for the electrolytic deposition of metals on metal strip are horizontal in various embodiments; radial or vertical belt guide in the finishing zone is known,
  • the published AT patent application A 3014-82 describes a method for the continuous coating on one or both sides of a, in a; known from the horizontal deviating direction led metal strip with a metal layer by electrolytic means; wherein the electrolyte flows between at least one plate-shaped anode and the metal strip as the cathode; that is characterized by; that the electrolyte runs freely in the upper area of the anode and under the.
  • Influence of gravity flowing downward forms a closed flow volume in the space between the anode and the metal strip; the room is constantly replenished with electrolyte:
  • the electrolyte is used in this known method; where the anodes are not immersed in the electrolyte bath;
  • the metal strip running out of the electrolytic cell is guided in the opposite direction (counter-current) and carried along with the metal strip entering the cell (co-current):
  • this procedure can only be used effectively; if the distance between the anode and the cathode; ie the metal band not larger than 2 to 20 mm; preferably 10 mm; is; because otherwise the amount of electrolyte to be pumped will be much too large; this known method leads to different flow conditions in the incoming and outgoing metal strip and thus also to different separation conditions:
  • the current density can only be adapted to the different velocities in the inlet and outlet part of the electrolysis cell according to the running and running run of the metal strip with increased effort; as a result, it is difficult; if not impossible; to achieve uniform deposition conditions in these two parts of the electrolysis cell.
  • the invention is based on the object; to provide a method and an apparatus of the type mentioned in the introduction; which, even in the case of a vertical cell, vertically on the metal strip passed through an electrolyte; in particular steel strip; enables the use of high current densities; as well as the same relative flows between the metal strip and the electrolyte and thus at the same time even separation conditions for the incoming and outgoing metal strip can be generated:
  • the electrolyte in the entire area between the anodes and the metal strip is forcibly guided in the direction of strip travel. This is preferably achieved in this way; that the flow of the electrolyte is increased by an increase in pressure; wherein the pressure in the inlet and / or outlet part is advantageously increased.
  • the device according to the invention preferred for carrying out the method according to the invention is constructed in this way; that the electrolysis cell is provided with shaft-shaped areas for the tape inlet and the tape outlet; Within the areas, the anodes are arranged in a known manner to each other and to the metal strip, and the areas for the tape entry and exit are communicatively connected by a lower part, and the upper edge of the area for the tape entry is arranged by a dimension A below the upper edge of the area for the tape exit is:
  • the process is carried out with a relative flow rate between more than 0.5 to 2.5; preferably 3.0 m / sec, carried out, the relative flow rate representing the difference in speed between the metal strip and the electrolyte flow rate.
  • FIGS. 1 to 5 showing in schematic form electrolytic cells in various variants with an incoming and outgoing metal strip.
  • a deflecting roller 2, 3 and a respective current transfer roller 4, 5 are provided above or above each of the electrolysis cells generally designated 1 above the metal strip inlet and the metal strip outlet.
  • the one to be refined, e.g. M allband 6 to be galvanized runs according to the direction of the arrows 7 between the deflection roller 2 and the current roller 4, through which the current transmission to the metal belt 6, e.g. a steel strip that comes into contact with the line down into the inlet area 8 between the anodes 9, around the immersion roller 10 and then upwards between the anodes 11 in the outlet area.
  • the metal strip 6 between the deflection roller 3 and the current roller 5 is e.g. to the next electrolytic cell.
  • Either soluble or insoluble anodes are used as anodes 9, 11.
  • 2 and 3 current rollers can be used instead of the deflection rollers, whereby the current rollers 4 and 5 can unfold.
  • both the inlet area 8 and the outlet area 12 are shaft-shaped, these areas 8, 12 being formed by a lower part 13 in which the immersion roller 10 is arranged; are communicatively connected. Furthermore, the upper edge of the inlet area is 8 Arranged by the dimension ⁇ h below the upper edge of the outlet area 12: If the electrolyte liquid is introduced into the outlet area 12, for example via an electrolyte inlet 14 shown in FIG. 3; this results in a flow of the electrolyte counter to the direction of travel of the strip during the passage of the metal strip through the electrolytic cell 1; ie in the outlet area 12 the flow is directed downwards and in the inlet area 8 upwards.
  • the electrolyte emerges at the upper edge of the inlet area 8, as indicated by arrows 18.
  • the value for the dimension ⁇ h results from the desired flow velocity and the flow losses for the electrolyte in the outlet area 12, in the lower part 13 and in the inlet area 8.
  • the length of the anodes 9 effective for coating or finishing the metal strip 6; 11 is indicated in Fig. 1 with a.
  • the electrolyte running from the inlet area 8 into the overflow tank 19 - indicated by the arrow 21 - is pumped back into the opening of the outlet area 12 of the metal strip 6 by means of the pump 20 - as indicated by the arrow 22. Accordingly, only a minor need;
  • Electrolyte quantity coming from a storage container (not shown) is additionally pumped into the outlet area 12 in order to generate or increase the necessary flow in the opposite direction to the strip running direction.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Electrolytic Production Of Metals (AREA)
  • Manufacture And Refinement Of Metals (AREA)
EP84111959A 1983-11-10 1984-10-05 Procédé et appareil pour le dépôt électrolytique de métaux Expired EP0142010B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84111959T ATE31560T1 (de) 1983-11-10 1984-10-05 Verfahren und vorrichtung zum elektrolytischen abscheiden von metallen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3340732 1983-11-10
DE3340732 1983-11-10

Publications (2)

Publication Number Publication Date
EP0142010A1 true EP0142010A1 (fr) 1985-05-22
EP0142010B1 EP0142010B1 (fr) 1987-12-23

Family

ID=6214011

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84111959A Expired EP0142010B1 (fr) 1983-11-10 1984-10-05 Procédé et appareil pour le dépôt électrolytique de métaux

Country Status (11)

Country Link
US (1) US4634504A (fr)
EP (1) EP0142010B1 (fr)
JP (1) JPS60114593A (fr)
KR (1) KR920000247B1 (fr)
AT (1) ATE31560T1 (fr)
AU (1) AU3529684A (fr)
CA (1) CA1251415A (fr)
DE (1) DE3468239D1 (fr)
DK (1) DK529384A (fr)
ES (1) ES537508A0 (fr)
NO (1) NO844498L (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0713932A1 (fr) 1994-11-29 1996-05-29 Heraeus Elektrochemie GmbH Electrode avec un corps en forme de plaque
US6395163B1 (en) 1992-08-01 2002-05-28 Atotech Deutschland Gmbh Process for the electrolytic processing especially of flat items and arrangement for implementing the process
US9878044B2 (en) 2012-03-16 2018-01-30 Merck Patent Gmbh Targeting aminoacid lipids

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6137996A (ja) * 1984-07-31 1986-02-22 Nippon Kokan Kk <Nkk> 垂直型電気亜鉛めつき装置
DE3510592A1 (de) * 1985-03-23 1986-10-02 Hoesch Stahl AG, 4600 Dortmund Hochgeschwindigkeits-elektrolysezelle fuer die veredelung von bandfoermigem gut
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
FR2847761B1 (fr) * 2002-11-27 2005-02-04 Framatome Connectors Int Dispositif de metallisation de formes imprimees munies de pistes conductrices d'electricite et procede de metallisation associe

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3108615A1 (de) * 1980-03-07 1982-01-14 Nippon Steel Corp., Tokyo Vorrichtung zum elektrolytischen behandeln eines metallbandes

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2317242A (en) * 1939-04-28 1943-04-20 Carnegie Illinois Steel Corp Plating tank for electrodeposition of metals on metallic strip
US2673836A (en) * 1950-11-22 1954-03-30 United States Steel Corp Continuous electrolytic pickling and tin plating of steel strip
US3975242A (en) * 1972-11-28 1976-08-17 Nippon Steel Corporation Horizontal rectilinear type metal-electroplating method
US4183799A (en) * 1978-08-31 1980-01-15 Production Machinery Corporation Apparatus for plating a layer onto a metal strip

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3108615A1 (de) * 1980-03-07 1982-01-14 Nippon Steel Corp., Tokyo Vorrichtung zum elektrolytischen behandeln eines metallbandes

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, unexamined applications, C field, vol. 6, no. 261, December 21, 1982 THE PATENT OFFICE JAPANESE GOVERNMENT page 11 C 141 & JP-A-57-152 487 (shin nippon seitetsu k.k.) *
PATENT ABSTRACTS OF JAPAN, unexamined applications, C field, vol. 6, no. 35, March 3, 1982 THE PATENT OFFICE JAPANESE GOVERNMENT page 120 C 93 & JP-A-56-152 990 (shin nippon seitetsu k.k.) *
PATENT ABSTRACTS OF JAPAN, unexamined applications, C field, vol. 7, no. 232, October 14, 1983 THE PATENT OFFICE JAPANESE GOVERNMENT page 92 C 190 & JP-A-58-123 898 (mitsubishi jukogyo k.k.) *
PATENT ABSTRATS OF JAPAN, unexamined applications, C field, vol. 6, no. 3, January 9, 1982 THE PATENT OFFICE JAPANESE GOVERNMENT page 83 C 86 & JP-A-56-127 789 (shin nippon seitetsu k.k.) *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6395163B1 (en) 1992-08-01 2002-05-28 Atotech Deutschland Gmbh Process for the electrolytic processing especially of flat items and arrangement for implementing the process
EP0713932A1 (fr) 1994-11-29 1996-05-29 Heraeus Elektrochemie GmbH Electrode avec un corps en forme de plaque
US9878044B2 (en) 2012-03-16 2018-01-30 Merck Patent Gmbh Targeting aminoacid lipids
US11510988B2 (en) 2012-03-16 2022-11-29 Merck Patent Gmbh Targeting aminoacid lipids

Also Published As

Publication number Publication date
US4634504A (en) 1987-01-06
ES8601338A1 (es) 1985-10-16
CA1251415A (fr) 1989-03-21
KR920000247B1 (ko) 1992-01-10
EP0142010B1 (fr) 1987-12-23
NO844498L (no) 1985-05-13
KR850004134A (ko) 1985-07-01
DK529384D0 (da) 1984-11-07
AU3529684A (en) 1985-05-16
DE3468239D1 (en) 1988-02-04
JPS60114593A (ja) 1985-06-21
DK529384A (da) 1985-05-11
ATE31560T1 (de) 1988-01-15
ES537508A0 (es) 1985-10-16

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