WO1994010360A1 - Vorrichtung zum einseitigen elektrolytischen beschichten von metallbändern - Google Patents
Vorrichtung zum einseitigen elektrolytischen beschichten von metallbändern Download PDFInfo
- Publication number
- WO1994010360A1 WO1994010360A1 PCT/DE1993/001015 DE9301015W WO9410360A1 WO 1994010360 A1 WO1994010360 A1 WO 1994010360A1 DE 9301015 W DE9301015 W DE 9301015W WO 9410360 A1 WO9410360 A1 WO 9410360A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- current roller
- roller
- metal strips
- electrolyte
- guided
- Prior art date
Links
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
- C25D7/0635—In radial cells
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/02—Electroplating of selected surface areas
- C25D5/028—Electroplating of selected surface areas one side electroplating, e.g. substrate conveyed in a bath with inhibited background plating
Definitions
- the invention relates to a device for the one-sided electrolytic coating of metal strips, in which the metal strips to be coated are guided in contact with a rotating cathodic current roller and are arranged approximately concentrically around the current roller with a spaced-apart, non-soluble anode, the spacing from Electrolyte flows through.
- REPLACEMENT LEAF Band has the advantage that voltage drops are avoided, since the electric field builds up exclusively between the concentrically arranged anode and the cathodic current roller or the metal strip adjacent to it.
- a disadvantage of this known device is the risk of coating the current roller in the lateral areas which are not covered by the metal strip to be coated.
- electrolyte enters between the current roller and the metal strip and leads to undesired coatings.
- the protruding lateral band would also be used for the power line. This would result in voltage drops and thus heating of the strip in the edge areas.
- the protruding roll area is galvanized. Since tapes and foils of different widths are coated in such systems, the rolls would have to be exchanged according to the tape width.
- a device of the type mentioned at the outset is also known from EP-OS 0 125 707, in which the electrolyte is conducted exclusively in the space (gap) between the partially cylindrical anode and the cylindrical cathodic current roller while maintaining a turbulent forced flow .
- the electrolyte is supplied via an inlet tube which extends over the entire width of the current roller. Obviously, with this arrangement, the electrolyte can also emerge from the end face
- REPLACEMENT LEAF emerge between the anode and the current roller into a container arranged underneath. There is also again the risk that electrolyte will enter between the metal strip to be coated and the current roller.
- the object of the invention is to propose a device of the type mentioned in the introduction, in which it is ensured that the electrolyte does not come into contact with the surface of the current roller.
- the object of the invention is achieved with a device of the type mentioned at the outset, which is characterized in that seals which can be set up in the region of the strip edge in the axis-parallel direction are provided between the strip section guided on the current roller and the anode. In this way, the electrolyte space is limited to the bandwidth, so that the wetting of the current roller with the electrolyte is avoided.
- the seal can be set up on both sides of the strip to match the respective width of the metal strip to be coated. What remains is an almost uncoated strip edge area, which is cut off anyway in the production of such strips.
- the invention also includes the proposal to lubricate the sealing side against the strip section guided on the current roller with sealing water. This is to prevent any electrolyte that may pass through the seal from reaching the current roller.
- electrolyte suction devices can be arranged in the area of the ends of the seals to form one or more squeezing or deflecting rollers, which are used to prevent any electrolyte that has been carried along from wetting the current roller in the corresponding area behind the seals.
- REPLACEMENT LEAF A device according to the invention is explained in more detail with the aid of an exemplary embodiment shown in principle. Show it :
- Fig. 1 shows a section through a device for one-sided electrolytic coating of metal strips
- Fig. 2 shows a section along the line A-A in Fig.1.
- a metal strip 2 to be coated on the outside is guided in the direction of the arrow with a wrap angle greater than 180 °.
- the tape coming from the right according to FIG. 1 is guided over a deflection roller 7 with the smallest possible distance from the current roller 1 and is carried on the opposite side via the deflection roller 7 after the coating.
- a partially cylindrical anode 3 is set up around the current roller with the band 2, the adjacent section of which is designated by the number 21.
- the corresponding electrolyte is guided through the spacing space 4, which enters at number 41 on the right-hand side of FIG. 1 and is withdrawn from the outlet 42 on the other side.
- the spacing space 4 (gap) between the band section 21 and the anode 3 is delimited by the seals indicated by the number 5, which can be set up axially parallel.
- These displaceable seals 5 each grip the strip edge regions 22 of the strip section 21 to be coated with the seal section 51 that can be set up.
- An externally arranged seal 52 for example a sealing bellows, seals off the end face of the anode 3.
- a suction device 6 can be arranged above the electrolyte outlet in front of the deflection roller 7 or a corresponding squeezing roller, which extends over the entire width of the current roller or can only be adjusted in the area of the sealing ends and with the seals to a bandwidth in order to remove the possibly carried electrolyte.
- sealing water lubrications can also be provided from the outside, with which it is prevented that any electrolyte that leaks out effectively wets the adjacent current roller area. In this way, the possibly escaping electrolyte is rinsed off or greatly diluted and is therefore no longer effective for coating.
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)
- Secondary Cells (AREA)
- Electrolytic Production Of Metals (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP51055294A JP3212606B2 (ja) | 1992-10-31 | 1993-10-22 | 金属ベルトの電解式片面被覆装置 |
AU53682/94A AU5368294A (en) | 1992-10-31 | 1993-10-22 | Device for electrolytically coating one side of metal strips |
KR1019950701658A KR100302171B1 (ko) | 1992-10-31 | 1993-10-22 | 금속스트립의한측면을전해코팅하기위한장치 |
US08/433,420 US5618391A (en) | 1992-10-31 | 1993-10-22 | Device for electrolytically coating one side of metal strips |
DE59302210T DE59302210D1 (de) | 1992-10-31 | 1993-10-22 | Vorrichtung zum einseitigen elektrolytischen beschichten von metallbändern |
EP93924004A EP0666936B1 (de) | 1992-10-31 | 1993-10-22 | Vorrichtung zum einseitigen elektrolytischen beschichten von metallbändern |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP4236927.4 | 1992-10-31 | ||
DE4236927A DE4236927A1 (de) | 1992-10-31 | 1992-10-31 | Vorrichtung zum einseitigen elektrolytischen Beschichten von Metallbändern |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1994010360A1 true WO1994010360A1 (de) | 1994-05-11 |
Family
ID=6471885
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1993/001015 WO1994010360A1 (de) | 1992-10-31 | 1993-10-22 | Vorrichtung zum einseitigen elektrolytischen beschichten von metallbändern |
Country Status (9)
Country | Link |
---|---|
US (1) | US5618391A (de) |
EP (1) | EP0666936B1 (de) |
JP (1) | JP3212606B2 (de) |
KR (1) | KR100302171B1 (de) |
AT (1) | ATE136593T1 (de) |
AU (1) | AU5368294A (de) |
DE (2) | DE4236927A1 (de) |
ES (1) | ES2085801T3 (de) |
WO (1) | WO1994010360A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
MD2173G2 (ro) * | 1997-04-18 | 2003-11-30 | АНДРИЦ-РАТЕНТФЕРВАЛТУНГС-ГЕЗЕЛШАФТ м.б.Х. | Dispozitiv pentru efectuarea procesului continuu de depunere electrolitică |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2078951A5 (de) * | 1970-02-25 | 1971-11-05 | Uss Eng & Consult | |
JPS5989790A (ja) * | 1982-11-15 | 1984-05-24 | Nippon Steel Corp | 電気めつきにおける通電ロ−ルへの金属の電着を防止する方法 |
US5069762A (en) * | 1991-01-18 | 1991-12-03 | Usx Corporation | Appartaus for improved current transfer in radial cell electroplating |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE397490A (de) * | 1932-07-13 | |||
US3483098A (en) * | 1966-02-11 | 1969-12-09 | United States Steel Corp | Method and apparatus for electroplating a metallic strip |
US4132617A (en) * | 1973-10-04 | 1979-01-02 | Galentan, A.G. | Apparatus for continuous application of strip-, ribbon- or patch-shaped coatings to a metal tape |
US3900383A (en) * | 1974-07-24 | 1975-08-19 | Nat Steel Corp | Apparatus for electroplating |
NL8300946A (nl) * | 1983-03-16 | 1984-10-16 | Hoogovens Groep Bv | Inrichting voor het tweezijdig electrolytisch bekleden van metaalband. |
US4582583A (en) * | 1984-12-07 | 1986-04-15 | National Semiconductor Corporation | Continuous stripe plating apparatus |
JPS61155372U (de) * | 1985-03-18 | 1986-09-26 |
-
1992
- 1992-10-31 DE DE4236927A patent/DE4236927A1/de not_active Withdrawn
-
1993
- 1993-10-22 WO PCT/DE1993/001015 patent/WO1994010360A1/de active IP Right Grant
- 1993-10-22 JP JP51055294A patent/JP3212606B2/ja not_active Expired - Fee Related
- 1993-10-22 ES ES93924004T patent/ES2085801T3/es not_active Expired - Lifetime
- 1993-10-22 KR KR1019950701658A patent/KR100302171B1/ko not_active IP Right Cessation
- 1993-10-22 EP EP93924004A patent/EP0666936B1/de not_active Expired - Lifetime
- 1993-10-22 DE DE59302210T patent/DE59302210D1/de not_active Expired - Fee Related
- 1993-10-22 US US08/433,420 patent/US5618391A/en not_active Expired - Fee Related
- 1993-10-22 AU AU53682/94A patent/AU5368294A/en not_active Abandoned
- 1993-10-22 AT AT93924004T patent/ATE136593T1/de not_active IP Right Cessation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2078951A5 (de) * | 1970-02-25 | 1971-11-05 | Uss Eng & Consult | |
JPS5989790A (ja) * | 1982-11-15 | 1984-05-24 | Nippon Steel Corp | 電気めつきにおける通電ロ−ルへの金属の電着を防止する方法 |
US5069762A (en) * | 1991-01-18 | 1991-12-03 | Usx Corporation | Appartaus for improved current transfer in radial cell electroplating |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 8, no. 199 (C - 242)<1636> 12 September 1984 (1984-09-12) * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
MD2173G2 (ro) * | 1997-04-18 | 2003-11-30 | АНДРИЦ-РАТЕНТФЕРВАЛТУНГС-ГЕЗЕЛШАФТ м.б.Х. | Dispozitiv pentru efectuarea procesului continuu de depunere electrolitică |
Also Published As
Publication number | Publication date |
---|---|
JP3212606B2 (ja) | 2001-09-25 |
DE4236927A1 (de) | 1994-05-05 |
ES2085801T3 (es) | 1996-06-01 |
ATE136593T1 (de) | 1996-04-15 |
KR950704544A (ko) | 1995-11-20 |
DE59302210D1 (de) | 1996-05-15 |
JPH08505185A (ja) | 1996-06-04 |
EP0666936A1 (de) | 1995-08-16 |
KR100302171B1 (ko) | 2001-11-22 |
US5618391A (en) | 1997-04-08 |
AU5368294A (en) | 1994-05-24 |
EP0666936B1 (de) | 1996-04-10 |
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