EP0222724A1 - Verfahren und Vorrichtung zur Herstellung einer hauchdünnen Metallfolie durch galvanische Beschichtung - Google Patents

Verfahren und Vorrichtung zur Herstellung einer hauchdünnen Metallfolie durch galvanische Beschichtung Download PDF

Info

Publication number
EP0222724A1
EP0222724A1 EP86870147A EP86870147A EP0222724A1 EP 0222724 A1 EP0222724 A1 EP 0222724A1 EP 86870147 A EP86870147 A EP 86870147A EP 86870147 A EP86870147 A EP 86870147A EP 0222724 A1 EP0222724 A1 EP 0222724A1
Authority
EP
European Patent Office
Prior art keywords
orifices
electrolyte
series
substrate
extra
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
EP86870147A
Other languages
English (en)
French (fr)
Other versions
EP0222724B1 (de
Inventor
Marios Economopoulos
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.)
Centre de Recherches Metallurgiques CRM ASBL
Original Assignee
Centre de Recherches Metallurgiques CRM ASBL
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 Centre de Recherches Metallurgiques CRM ASBL filed Critical Centre de Recherches Metallurgiques CRM ASBL
Priority to AT86870147T priority Critical patent/ATE58921T1/de
Publication of EP0222724A1 publication Critical patent/EP0222724A1/de
Application granted granted Critical
Publication of EP0222724B1 publication Critical patent/EP0222724B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
    • 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
    • C25D7/0685—Spraying of electrolyte

Definitions

  • the present invention relates to the electrolytic deposition of a metallic material on a substrate.
  • the present invention provides a device for ensuring, economically, a high turbulence of an electrolyte between two very close electrodes, without using excessive driving pressures.
  • the device for electrolytic deposition on a substrate which is the subject of the present invention, intended to ensure a high turbulence of the electrolyte between an anode and a very close cathode, the cathode generally being constituted by the substrate, is essentially characterized in that it comprises a plate pierced with a pre first series of orifices distributed over the surface of the plate and connected to electrolyte supply means, as well as a second series of orifices also distributed over the surface of the plate and adjacent to the orifices of said first series, the orifices of said second series being connected to means for discharging the electrolyte, and in that said plate constitutes the anode of the electrolysis circuit.
  • said tubes connected to the orifices of the second series are, at their other end, connected to suction means, for example to a pump via a collector .
  • the operating principle of this device is as follows: the box, connected to the positive pole of a direct current source, is arranged in such a way that its wall provided with the two series of orifices is located near the surface of the substrate, which is connected to the negative pole of the same DC source.
  • the electrolyte is introduced, under moderate pressure, into the interior volume of the box through the supply orifice. Under the effect of the supply pressure, the electrolyte leaves the box through the orifices of the first series, and it circulates in the narrow space existing between the wall of the box and the substrate, therefore between the anode and the cathode.
  • the electrolyte is taken up by the orifices of the second series, for example by suction, and leads, by the tubes connected to these orifices, to a dis sufficient substrate strength. It can then be introduced again into the box, possibly after regeneration, and again run through the circuit which has just been described.
  • the device of the invention comprises a box 1, one of the walls of which is arranged in parallel and at a very short distance from the surface of a metal strip 2 in movement.
  • the box 1 is provided with an orifice 3 to which is connected a pipe 4 for supplying electrolyte from a source not shown.
  • a first series of orifices 5 making the interior volume of the box 1 communicate with the narrow space existing between the box 1 and the strip 2.
  • a second series of orifices 6 to which tubes 7 are connected which pass through the interior volume of the box 1 and which exit therefrom passing in leaktight manner through another wall of the box 1.
  • these tubes open out into a manifold 8 which can be connected to a pump 9.
  • the latter is connected to the negative pole of a direct current source, or possibly to the ground, while the box 1 is connected to the positive pole of this same direct current source.
  • the box therefore constitutes the anode and the strip constitutes the cathode of an electrolysis circuit.
  • the electrolyte enters the interior volume of the box 1 through the supply orifice 3 connected to the pipe 4. Under the effect of the supply pressure, the electrolyte fills the interior volume of the box, then it flows through the orifices 5 to occupy the narrow space existing between the box 1 and the strip 2. An electric current can thus flow between the anode and the cathode and ensure the desired electrolytic deposition on the strip 2. Thanks to the short distance separating the orifices 5 from the orifices 6, the electrolyte is very quickly taken up, by suction, through the orifices 6 and the tubes 7, to the collector 8 and to the pump 9. After having possibly been regenerated and having received a quantity backup by known means not shown, the electrolyte is then returned, by the action of the pump 9, in the supply line 4 and starts the circuit again.
  • the suction devices namely the manifold 8 and the pump 9, are eliminated completely.
  • the box 1 is completely submerged in the tank containing the electrolyte and the tubes 7 open directly into this tank.
  • the electrolyte then flows through the tubes 7 under the effect of the pressure established between the anode and the cathode.
  • the device of the invention also makes it possible to deposit non-adherent coatings, which can be detached from their substrate to obtain very thin sheets.
  • FIG. 2 represents a box 1, one wall of which comprises a semi-cylindrical cavity where the orifices 5 and 6 defined above are formed.
  • the orifices 6 are connected to a manifold 8 by tubes 7.
  • a cylinder 10 coaxial with said cavity in which it can rotate.
  • the outside diameter of the cylinder is slightly smaller than that of the cavity, so as to leave a narrow annular gap between them.
  • the box 1 and the cylinder 10 are respectively connected to the positive pole and to the negative pole of a direct current source.
  • the electrolyte is introduced through the supply line 4, arrives through the orifices 5 in the annular slot where it undergoes electrolysis, then is taken up through the orifices 6 and the tubes 7 towards the collector 8.
  • the metal sheet 11 formed on the cylinder is then detached in a manner known per se.
  • the device according to the invention made it possible to achieve a specific electrolyte flow rate of 20 l / m2.s under a pressure of 1 kg / cm2 with an anode-cathode distance equal to 0.1 mm. Such a specific flow ensures high turbulence, which in turn promotes the electrical behavior of the installation.
  • FIG. 3 illustrates the variation of the specific flow rate of the electrolyte as a function of the pressure, for different values of the anode-cathode distance. It clearly shows that the device of the invention makes it possible to very greatly reduce this distance while ensuring appreciable specific flow rates and without requiring excessive pressures.
  • FIG. 4 shows the influence of the anode-cathode distance on the pressure of the electrolyte ensuring a predetermined specific flow rate.
  • the device of the invention made it possible to reduce the anode-cathode distance to 0.2 mm, while the pressure only went from 0.4 to 0 , 6 kg / cm2.
  • the device of the invention also proves to be advantageous in this respect, because an increase in the current density leads to the possibility of increasing the speed and therefore the productivity of the deposition lines, for a given thickness of extra-thin sheet at produce.
  • An additional advantage of the installation according to the invention is that it makes it possible to achieve high levels of turbulence and current density while using only low pressures. As a result, the anode and the substrate are not subjected to significant stresses and therefore do not deform significantly. In addition, the energy consumption of the pump remains low.
  • the device of the present invention also makes it possible to vary the width of the area coated with the substrate or the width of the extra-thin sheet, by adapting the length - in the transverse direction of the product - of the box 1 or of the cylinder 10, respectively .
  • This adaptation can be carried out for example by modifying the number of boxes juxtaposed according to the width of the product or by partitioning a long box into several compartments with clean supply and evacuation, or by closing off part of the orifices for passage of the electrolyte.
  • the process which is the subject of the present invention may include a heat treatment operation comprising a first step of reheating the extra-thin sheet beyond its recrystallization temperature, followed by a cooling step. fast to a temperature close to room temperature.
  • close to room temperature is meant a temperature at which the extra-thin sheet no longer undergoes any metallurgical transformation.
  • the reheating temperature is higher than approximately 650 ° C., in order to cause the recrystallization of the metal, and thus to improve its ductility by reducing its elastic limit and its breaking load compared to the levels observed immediately after l '' electroforming.
  • the reheating step is preferably carried out by direct resistance heating.
  • Rapid cooling can be carried out, for example, by immersing the extra-thin sheet in an aqueous quenching bath which may be at a temperature above ambient temperature. Such rapid cooling exerts on the extra-thin sheet a softening effect which promotes the appearance of the ability to fold.
  • the degree of softening thus reached depends of course on the purity of the metal constituting said sheet, and in particular on its contents of carbon and free nitrogen.
  • an extra-thin sheet (10 ⁇ m) of iron containing less than 0.002% carbon and less than 0.0007% nitrogen was recrystallized by heating and maintaining between 650 ° C and 850 ° C , then cooled to around 5600 ° C / s by immersion in boiling water. It thus acquired an excellent folding ability without spring effect without losing anything of its flatness or its surface appearance.
  • An extra-thin sheet of iron, produced and heat treated according to the process of the invention has a folding ability at least equivalent to that of the aluminum sheets currently used.
  • the device and the method according to the present invention make it possible to manufacture coated products and in particular to produce extra-thin sheets of high quality, with high productivity of the installation and with limited energy consumption.
  • the arrangement which is the subject of the present invention makes it possible to achieve high turbulence without requiring significant electrolyte flow rates; moreover, the required pressure being low, the pumping power and consequently the energy consumption are limited.
  • the hydraulic path is very short due to the short distance separating the supply ports from the discharge ports.
  • the arrangement of the invention makes it possible to discharge practically all of the electrolyte through the discharge orifices; there is therefore no significant lateral flow and the device of the present invention has the advantage, important in practice, of not requiring side seals.
EP86870147A 1985-10-15 1986-10-13 Verfahren und Vorrichtung zur Herstellung einer hauchdünnen Metallfolie durch galvanische Beschichtung Expired - Lifetime EP0222724B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86870147T ATE58921T1 (de) 1985-10-15 1986-10-13 Verfahren und vorrichtung zur herstellung einer hauchduennen metallfolie durch galvanische beschichtung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
LU86119A LU86119A1 (fr) 1985-10-15 1985-10-15 Dispositif de depot electrolytique et procede pour sa mise en oeuvre
LU86119 1985-10-15

Publications (2)

Publication Number Publication Date
EP0222724A1 true EP0222724A1 (de) 1987-05-20
EP0222724B1 EP0222724B1 (de) 1990-12-05

Family

ID=19730565

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86870147A Expired - Lifetime EP0222724B1 (de) 1985-10-15 1986-10-13 Verfahren und Vorrichtung zur Herstellung einer hauchdünnen Metallfolie durch galvanische Beschichtung

Country Status (14)

Country Link
US (1) US4702812A (de)
EP (1) EP0222724B1 (de)
JP (1) JPH0788597B2 (de)
KR (1) KR940002262B1 (de)
AT (1) ATE58921T1 (de)
AU (1) AU592378B2 (de)
BR (1) BR8605023A (de)
CA (1) CA1313508C (de)
DE (1) DE3676053D1 (de)
ES (1) ES2020199B3 (de)
FI (1) FI85290C (de)
LU (1) LU86119A1 (de)
NO (1) NO864100L (de)
ZA (1) ZA867788B (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU86773A1 (fr) * 1987-02-13 1988-11-17 Centre Rech Metallurgique Installation pour la fabrication en continu d'une feuille metallique extra-mince par depot electrolytique
US5228965A (en) * 1990-10-30 1993-07-20 Gould Inc. Method and apparatus for applying surface treatment to metal foil
US5393396A (en) * 1990-10-30 1995-02-28 Gould Inc. Apparatus for electrodepositing metal
JP4586423B2 (ja) * 2004-02-27 2010-11-24 Ｊｆｅスチール株式会社 電気めっき鋼板の製造方法
KR101403891B1 (ko) * 2007-10-10 2014-06-11 한국생산기술연구원 니켈-철 합금층과, 그의 전주 장치 및 전주 방법과, 그의제조 장치 및 방법

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2350142A1 (fr) * 1976-05-05 1977-12-02 Hoechst Ag Procede et dispositif pour le traitement electrolytique continu d'un ruban metallique

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4174261A (en) * 1976-07-16 1979-11-13 Pellegrino Peter P Apparatus for electroplating, deplating or etching
JPS5827993A (ja) * 1981-08-10 1983-02-18 Sonitsukusu:Kk 微小部分メツキ方法及びその装置
US4529486A (en) * 1984-01-06 1985-07-16 Olin Corporation Anode for continuous electroforming of metal foil

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2350142A1 (fr) * 1976-05-05 1977-12-02 Hoechst Ag Procede et dispositif pour le traitement electrolytique continu d'un ruban metallique

Also Published As

Publication number Publication date
AU592378B2 (en) 1990-01-11
LU86119A1 (fr) 1987-06-02
NO864100D0 (no) 1986-10-14
JPH0788597B2 (ja) 1995-09-27
AU6396986A (en) 1987-04-16
CA1313508C (en) 1993-02-09
KR870004170A (ko) 1987-05-07
EP0222724B1 (de) 1990-12-05
FI864136A (fi) 1987-04-16
JPS6296694A (ja) 1987-05-06
ES2020199B3 (es) 1991-08-01
FI85290C (fi) 1992-03-25
BR8605023A (pt) 1987-07-14
FI85290B (fi) 1991-12-13
KR940002262B1 (ko) 1994-03-19
US4702812A (en) 1987-10-27
DE3676053D1 (de) 1991-01-17
ATE58921T1 (de) 1990-12-15
FI864136A0 (fi) 1986-10-14
ZA867788B (en) 1987-05-27
NO864100L (no) 1987-04-21

Similar Documents

Publication Publication Date Title
EP1204787B1 (de) Verfahren zum kontinuierlichen vernickeln eines aluminium-leiters und vorrichtung dazu
FR2646174A1 (fr) Procede et dispositif de revetement en continu de substrats conducteurs de l'electricite par electrolyse a grande vitesse
FR2834301A1 (fr) Procede de realisation d'un film d'oxyde anodique sur une rangee d'elements de chaine de fermeture a glissiere et dispositif de realisation de celui-ci.
FR2477580A1 (de)
EP0222724B1 (de) Verfahren und Vorrichtung zur Herstellung einer hauchdünnen Metallfolie durch galvanische Beschichtung
CA1309690C (fr) Procede et dispositif pour deposer electrolytiquement au defile un film continu de nickel sur du fil metallique a usage electrique
FR2462488A1 (fr) Cellule electrolytique du type a filtre-presse
BE905588A (fr) Dispositif de depot electrolytique et procede pour sa mise en oeuvre.
EP0909346B1 (de) Verfahren und vorrichtung zum elektrolytischen beschichten einer zylinderoberfläche mit metall eines zylinders für das stranggiessen von dünnen metallbändern
EP0470878B1 (de) Beschichtung zum Schutz vor Verschleiss auf einem Substrat auf Titanbasis
FR2542766A1 (fr) Procede et dispositif de traitement electrochimique de la surface de produits metalliques de forme allongee
LU86550A1 (fr) Dispositif a cellule radiale pour le placage electrolytique
WO2004027119A2 (fr) Procede de prechauffage d'une cuve pour la production d'aluminium par electrolyse
FR2502185A1 (fr) Dispositif de depot d'une couche mince
EP0279803B1 (de) Anlage zur kontinuierlichen Herstellung einer sehr dünnen Metallfolie durch elektrolytische Abscheidung
EP0246175B1 (de) Gegenstrom-Elektrolyt-Einspritzer
BE1010720A3 (fr) Procede et dispositif pour revetir en continu un substrat en mouvement au moyen d'un alliage metallique en phase vapeur.
CH655265A5 (en) Method for manufacturing a wire electrode for electron discharge machining (spark erosion machining)
EP0685571A1 (de) Verfahren und Vorrichtung zur Beschichtung eines Substrats mittels Kathodenzerstäubung
EP0241387A1 (de) Giessform, die die Regulierung der Höhe der freien Oberfläche von Metallschmelzen zur Berührung mit der Giessform beim vertikalen Giessen gestattet
EP0828864A1 (de) Verfahren und vorrichtung zum beschichtung eines metallischen bandes mit einem metal oder einer legierung mit niedrigen schmelzpunkt oder liquidespunkt wie das material aus dem das band besteht
BE1006220A6 (fr) Dispositif pour la fabrication d'un feuil metallique composite par depot electrolytique.
CA1102279A (fr) Dispositif de regeneration de zinc
EP0232211A1 (de) Verfahren zur Behandlung von Aluminium-Oberflächen, die bestimmt sind, um mit einer Fluor-Carbon-Schicht bekleidet zu werden
BE1000586A7 (fr) Electrode destinee a une cellule d'electrolyse.

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

Kind code of ref document: A1

Designated state(s): AT CH DE ES FR GB GR IT LI NL SE

17P Request for examination filed

Effective date: 19871105

17Q First examination report despatched

Effective date: 19881028

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT CH DE ES FR GB GR IT LI NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19901205

REF Corresponds to:

Ref document number: 58921

Country of ref document: AT

Date of ref document: 19901215

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3676053

Country of ref document: DE

Date of ref document: 19910117

ITF It: translation for a ep patent filed

Owner name: INTERPATENT ST.TECN. BREV.

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
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

ITTA It: last paid annual fee
26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19920922

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19920925

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19920930

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 19921016

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Effective date: 19931013

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19931014

Ref country code: ES

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 19931014

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19931031

Ref country code: CH

Effective date: 19931031

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

EUG Se: european patent has lapsed

Ref document number: 86870147.5

Effective date: 19940510

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19951031

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19960813

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19960816

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19960830

Year of fee payment: 11

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19970501

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 19970501

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19971013

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19971031

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19971013

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980701

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 19990601

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20051013