EP0039453B1 - Dispositif d'électrodéposition - Google Patents
Dispositif d'électrodéposition Download PDFInfo
- Publication number
- EP0039453B1 EP0039453B1 EP81103085A EP81103085A EP0039453B1 EP 0039453 B1 EP0039453 B1 EP 0039453B1 EP 81103085 A EP81103085 A EP 81103085A EP 81103085 A EP81103085 A EP 81103085A EP 0039453 B1 EP0039453 B1 EP 0039453B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- strip
- electrode
- electrodes
- electrolyte
- electroplating
- 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.)
- Expired
Links
Images
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
- C25D7/0614—Strips or 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
- C25D7/0642—Anodes
Definitions
- the invention relates to a device for electroplating metal strips, in particular for galvanizing steel strips, with a tank filled with electrolyte liquid, in particular through which there is a flow, and at least one electrode immersed therein, above and below the strip and arranged parallel to it.
- the invention has for its object to provide a device for electroplating, which is simple in construction and which allows a one-sided or double-sided coating of the strip without time-consuming conversion.
- the electrode arranged above the belt is made of the metal to be deposited, e.g. Zinc
- the electrode arranged below the strip consists of a material that is insoluble in the electrolyte and can be switched off from the power source for the purpose of one-sided electroplating.
- the ions necessary for the coating are made available by the electrode which is used up and arranged above the strip, in both the one-sided and the two-sided coating.
- the elaborate preparation of the electrolyte in a separate system and the pumping-around which requires additional energy are eliminated in the device according to the invention. Since the electrode, which is difficult to access and is located below the metal strip, consists of a material that is not soluble in the electrolyte, its distance from the strip remains constant, so that a uniform coating is ensured.
- the power supply provided for the lower electrode can additionally supply the upper electrode with current.
- the coating process can then be carried out more quickly because of the double current strengths.
- the distance between the upper and / or lower electrode can be adjustable.
- the adjustability of the upper electrode that consumes during operation is of particular importance. If the upper electrode is kept at a constant distance, the voltage once set can be maintained. Special devices for voltage regulation are not required. Since only the upper electrode is worn out but is easily accessible, the time required for the replacement is comparatively short.
- a slight encroachment of the electrical field around the strip edges and the associated slight coating of the strip side facing away from the electrode can be avoided by providing shielding masks running parallel to the strip edges, to which a voltage can optionally be applied to build up a protective field.
- a plurality of upper and lower electrodes can be arranged one behind the other in a tank.
- a plurality of devices for electroplating are arranged one behind the other above a collecting trough 9 for electrolyte liquid 10.
- Each device consists of a current roller 1, via which a band 7 to be coated can be supplied with current, and a pressure roller 2 arranged below the current roller 1, a tank 8 filled with electrolytes 6, on the front and rear edge of which sealing rollers 3 are provided, between which the band 7 enters the tank 8 and exits the tank 8.
- each tank 8 there are two electrodes 5 made of material insoluble in the electrolyte, e.g. Titanium, carbon or lead-coated copper plates, and above the band 7 and parallel to this electrodes 4 made of soluble material, e.g. Zinc, arranged.
- the other connection terminal of the current source is applied to the electrodes 4, 5, the electrodes 5 optionally being able to be switched off.
- the upper and lower electrodes 4, 5 consist of several segments, particularly in the edge areas.
- the segments of the upper electrode 4 can be moved apart, while the segments of the lower electrode 5 are separated from one another by insulating strips 11.
- the segments of the electrodes 4, 5 can optionally be connected to the power source.
- masks 12 are provided in the edge area which can be moved horizontally and perpendicularly to the edges.
- the electrolyte can be pumped into the gap or gap between the active electrodes 4 and 5 or 4 and the strip 7 to be coated by means of circulation pumps and nozzles, not shown, so that there is a uniform ion concentration here.
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)
Claims (7)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19803017079 DE3017079A1 (de) | 1980-05-03 | 1980-05-03 | Vorrichtung zum elektroplattieren |
DE3017079 | 1980-05-03 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0039453A1 EP0039453A1 (fr) | 1981-11-11 |
EP0039453B1 true EP0039453B1 (fr) | 1984-12-05 |
Family
ID=6101585
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP81103085A Expired EP0039453B1 (fr) | 1980-05-03 | 1981-04-24 | Dispositif d'électrodéposition |
Country Status (6)
Country | Link |
---|---|
US (1) | US4347115A (fr) |
EP (1) | EP0039453B1 (fr) |
JP (1) | JPS5729594A (fr) |
CA (1) | CA1165725A (fr) |
DE (2) | DE3017079A1 (fr) |
ES (1) | ES8202597A1 (fr) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5751289A (en) * | 1980-09-10 | 1982-03-26 | Fuji Photo Film Co Ltd | Electrolytic treating device for belt-like metallic plate |
US4514266A (en) * | 1981-09-11 | 1985-04-30 | Republic Steel Corporation | Method and apparatus for electroplating |
DE3439750A1 (de) * | 1984-10-31 | 1986-04-30 | Inovan-Stroebe GmbH & Co KG, 7534 Birkenfeld | Galvanisierverfahren |
JPH0730480B2 (ja) * | 1987-01-26 | 1995-04-05 | 三菱重工業株式会社 | 鋼帯の連続電解メツキ装置 |
DE3864526D1 (de) * | 1987-01-26 | 1991-10-10 | Siemens Ag | Galvanisierungseinrichtung fuer plattenfoermige werkstuecke, insbesondere leiterplatten. |
IT1227203B (it) * | 1988-08-18 | 1991-03-27 | Techint Spa | Impianto a cella orizzontale di metallizzazione elettrolitica, ad anodi solubili, per trattamento elettrolitico in continuo di nastrid'acciaio su una o due facce, e procedimento |
DE3901807A1 (de) * | 1989-01-21 | 1990-07-26 | Roland Schnettler | Vorrichtung zum elektrolytischen abscheiden von metallen auf einer oder beiden seiten von baendern |
BE1006106A3 (fr) * | 1990-11-08 | 1994-05-17 | Cockerill Rech & Dev | Procede et dispositif de reglage de l'epaisseur d'un revetement depose par electrolyse sur une plaque ou feuille metallique. |
US5344538A (en) * | 1993-01-11 | 1994-09-06 | Gould Inc. | Thin plate anode |
DE19717489B4 (de) * | 1997-04-25 | 2008-04-10 | Sms Demag Ag | Anordnung zur elektrogalvanischen Metallbeschichtung eines Bandes |
DE102009022337A1 (de) * | 2009-05-13 | 2010-11-18 | Gebr. Schmid Gmbh & Co. | Verfahren und Vorrichtung zur Behandlung eines Substrats |
DE102009041068A1 (de) * | 2009-09-10 | 2011-03-24 | GM Global Technology Operations, Inc., Detroit | Vorrichtung sowie Verfahren zur galvanischen Abscheidung einer Schicht auf einen Gegenstand |
CN104342742B (zh) * | 2013-08-02 | 2016-12-28 | 天津华源线材制品有限公司 | 一种镀锌电镀槽的电极配置结构 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2723953A (en) * | 1951-11-09 | 1955-11-15 | Crown Cork & Seal Co | Electrolytic plating apparatus |
US3954571A (en) * | 1970-04-15 | 1976-05-04 | M&T Chemicals Inc. | Wire and strip line electroplating |
AR204283A1 (es) * | 1975-01-21 | 1975-12-10 | Uss Eng & Consult | Aparato para el tratamiento electrolitico de tiras de metal |
US3989604A (en) * | 1975-10-15 | 1976-11-02 | National Steel Corporation | Method of producing metal strip having a galvanized coating on one side |
IT1076494B (it) * | 1975-10-15 | 1985-04-27 | Nat Steel Corp | Procedimento per la produzione di lamiera zincata |
US4183799A (en) * | 1978-08-31 | 1980-01-15 | Production Machinery Corporation | Apparatus for plating a layer onto a metal strip |
US4282073A (en) * | 1979-08-22 | 1981-08-04 | Thomas Steel Strip Corporation | Electro-co-deposition of corrosion resistant nickel/zinc alloys onto steel substrates |
-
1980
- 1980-05-03 DE DE19803017079 patent/DE3017079A1/de not_active Withdrawn
-
1981
- 1981-04-24 EP EP81103085A patent/EP0039453B1/fr not_active Expired
- 1981-04-24 DE DE8181103085T patent/DE3167554D1/de not_active Expired
- 1981-04-30 ES ES501801A patent/ES8202597A1/es not_active Expired
- 1981-05-01 US US06/259,721 patent/US4347115A/en not_active Expired - Fee Related
- 1981-05-01 CA CA000376729A patent/CA1165725A/fr not_active Expired
- 1981-05-02 JP JP6620781A patent/JPS5729594A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
DE3167554D1 (en) | 1985-01-17 |
CA1165725A (fr) | 1984-04-17 |
ES501801A0 (es) | 1982-02-16 |
US4347115A (en) | 1982-08-31 |
JPS5729594A (en) | 1982-02-17 |
ES8202597A1 (es) | 1982-02-16 |
DE3017079A1 (de) | 1981-11-05 |
EP0039453A1 (fr) | 1981-11-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Designated state(s): BE DE FR GB IT LU SE |
|
17P | Request for examination filed |
Effective date: 19820504 |
|
RBV | Designated contracting states (corrected) |
Designated state(s): DE |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Designated state(s): DE |
|
REF | Corresponds to: |
Ref document number: 3167554 Country of ref document: DE Date of ref document: 19850117 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed | ||
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Effective date: 19870101 |