EP0093681B1 - Procédé et dispositif pour revêtir une grande longueur de métal d'une couche métallique - Google Patents

Procédé et dispositif pour revêtir une grande longueur de métal d'une couche métallique Download PDF

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Publication number
EP0093681B1
EP0093681B1 EP83420076A EP83420076A EP0093681B1 EP 0093681 B1 EP0093681 B1 EP 0093681B1 EP 83420076 A EP83420076 A EP 83420076A EP 83420076 A EP83420076 A EP 83420076A EP 0093681 B1 EP0093681 B1 EP 0093681B1
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EP
European Patent Office
Prior art keywords
metal
length
covering
process according
nickel
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
Application number
EP83420076A
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German (de)
English (en)
French (fr)
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EP0093681A1 (fr
Inventor
Jacques Lefebvre
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.)
Nokia Deutschland GmbH
Original Assignee
Aluminium Pechiney SA
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 Aluminium Pechiney SA filed Critical Aluminium Pechiney SA
Publication of EP0093681A1 publication Critical patent/EP0093681A1/fr
Application granted granted Critical
Publication of EP0093681B1 publication Critical patent/EP0093681B1/fr
Expired legal-status Critical Current

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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

Definitions

  • the invention relates to a method and a device for coating, continuously and at high speed, a large length of metal such as wire, round, bar, tube, flat, with a metal layer and which is particularly applicable to nickel plating of aluminum wires for electrical use.
  • each of these processes has both advantages and disadvantages, and it is therefore necessary to choose according to the desired goal, that which presents the optimum compromise.
  • the applicant has mainly aimed to resolve the problem of coating electrical conductors of aluminum or aluminum-based alloys. Indeed, if, for several years, it has been shown that aluminum and its alloys and, in particular, the alloy designated by the Aluminum Association under the name 6101, can replace copper, both from the point of view electrical resistivity and mechanical characteristics, it has also been found, however, that its use in the form of wire does not lend itself well to the connection systems currently used in electrical installations, in particular in high-stress applications or in aggressive atmospheres. In fact, in these application conditions, it is possible to observe a growth in the contact resistance, a possible source of overheating which is detrimental to the good behavior of this type of conductor and to the safety of the installations. It was therefore necessary, to fully benefit from the indisputable advantages of aluminum and to impose it definitively in place of copper in the field of conductors, to find an economical process, which gives the wire a contact resistance stable over time and at least equivalent to that of copper.
  • the length of metal which may be a wire, a round, a bar, a tube, a flat made of aluminum, copper or other metal, is optionally initially subjected to a conventional degreasing or chemical pickling treatment to remove the surface stains, then it passes into a coating metal solution which is preferably nickel, but can be any other metal capable of being electrolytically deposited and chosen according to the problem to be solved.
  • a coating metal solution which is preferably nickel, but can be any other metal capable of being electrolytically deposited and chosen according to the problem to be solved.
  • an electrical voltage is then applied, which can be continuous or pulsed. If the positive pole of the current source is conventionally connected to an electrode immersed in said solution, on the other hand, to close the circuit, the negative pole is no longer connected directly over part of the length of metal as in the prior art, but by means of an electrode which plunges into a conductive liquid through which passes said length, and which constitutes the liquid current outlet.
  • these temperatures are respectively around 35 and 50 ° C.
  • the applicant has already managed to achieve nickel plating of several ⁇ m in thickness with a running speed of the order of 30 m / minute and a residence time of less than 12 seconds, which constitutes great progress by compared to the technique with mechanical contact, where, for an equivalent speed and residence time, the thickness was less than 0.5 wm.
  • the applicant having carried out winding tests of ten turns on diameter has found a quite remarkable ductility of the nickel layer and, in particular, its surprising ability to wire drawing.
  • a wire of aluminum alloy 6101 of diameter 1.78 mm, coated according to the invention, with a layer of nickel of 3 ⁇ m could be drawn to a diameter 0.78 mm, without any detachment or tearing of the nickel coating.
  • a 1350 aluminum wire, 5.67 mm in diameter could be drawn up to 0.78 mm in 16 passes with conservation of the adhesion of the nickel deposit while keeping, after each pass low contact resistance.
  • the Applicant has designed an experimental device inspired in part by that taught in US-A-4097342 which is formed in the direction of travel of the length of metal by a liquid current outlet constituted by a tank containing an electrolyte in which plunges a negatively charged electrode and a coating tank of the same length containing the coating solution in which plunges a positively charged electrode.
  • a scalping die placed upstream of the liquid current socket and a rinsing tank placed between the liquid current socket and the coating tank.
  • the receptacle for the liquid outlet and the coating receptacle are characterized by their length which is each 5 meters maximum.
  • This device is represented by the attached figure in which there is a coil (1) unwinding the length of metal (2), a shaving die (3), a tank (4) for taking a liquid current with an electrode. (5) connected to the negative pole of the current source (6) and immersed in the solution (7), a washing compartment (8), a tank (9) of coating containing the solution (10) in which is immersed l 'electrode (11) positively charged. At the outlet of this tank, a rinsing (12) and drying (13) system is provided before winding the length of metal on the coil (14).
  • the invention can be illustrated using table n ° 1 in which appear a series of 18 tests carried out on an aluminum alloy wire 6101, of diameter 1.78 mm having as mechanical characteristics for tests 1 to 11 :
  • the treated wire is brought to 120 ° C. under the effect of the overcurrent which passes through it, then cooled to ambient temperature.
  • the behavior is considered to be good if the contact resistance R and the temperature of the fitting do not change.
  • Table II below gives, for an aluminum alloy wire 6101 with a diameter of 1.75 mm, corresponding to test No. 8 of Table 1, the results of initial contact resistance measurements Ro and after 200 cycles R200 carried out. on pad terminals during 8 tests marked from 1 to 8. It also gives the contact temperature measurements after 1 cycle ⁇ 1 and after 200 cycles ⁇ 200, and compares them to the reference contact temperature s'. These tests were carried out by taking place in 2 different cases of tightening torques: 0.33 and 0.5 mN which practically did not change during the cycles, at an ambient temperature close to 20 ° C and at an intensity 31.5 A.
  • Table IV reproduces the tests in Table II, but using a coated wire at a running speed of 300 m / min.
  • the present invention finds its application in all the problems of coating a long length of metal with an adherent metal layer and having both a ductility such that it easily lends itself to wire drawing operations, and a contact resistance and not scalable.
  • nickel-plating can be carried out on supply diameters, that is to say greater than the use diameter, which is subsequently reduced. , which makes it possible to extend the application of the method to other fields such as the fine wires of telephone wires, flexible cables and winding wires ...

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)
  • Electroplating And Plating Baths Therefor (AREA)
EP83420076A 1982-04-29 1983-04-29 Procédé et dispositif pour revêtir une grande longueur de métal d'une couche métallique Expired EP0093681B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8207922A FR2526052B1 (fr) 1982-04-29 1982-04-29 Procede et dispositif pour revetir une grande longueur de metal d'une couche metallique
FR8207922 1982-04-29

Publications (2)

Publication Number Publication Date
EP0093681A1 EP0093681A1 (fr) 1983-11-09
EP0093681B1 true EP0093681B1 (fr) 1985-11-21

Family

ID=9273807

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83420076A Expired EP0093681B1 (fr) 1982-04-29 1983-04-29 Procédé et dispositif pour revêtir une grande longueur de métal d'une couche métallique

Country Status (6)

Country Link
US (1) US4492615A (enrdf_load_stackoverflow)
EP (1) EP0093681B1 (enrdf_load_stackoverflow)
JP (1) JPS58193392A (enrdf_load_stackoverflow)
CA (1) CA1197212A (enrdf_load_stackoverflow)
DE (1) DE3361277D1 (enrdf_load_stackoverflow)
FR (1) FR2526052B1 (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19951324A1 (de) * 1999-10-20 2001-05-03 Atotech Deutschland Gmbh Verfahren und Vorrichtung zum elektrolytischen Behandeln von elektrisch leitfähigen Oberflächen von gegeneinander vereinzelten Platten- und Folienmaterialstücken sowie Anwendung des Verfahrens
DE19951325A1 (de) * 1999-10-20 2001-05-10 Atotech Deutschland Gmbh Verfahren und Vorrichtung zum elektrolytischen Behandeln von elektrisch gegeneinander isolierten, elektrisch leitenden Strukturen auf Oberflächen von elektrisch isolierendem Folienmaterial sowie Anwendungen des Verfahrens

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4759837A (en) * 1987-01-06 1988-07-26 Aluminium Pechiney Process and apparatus for electrolytically depositing in a moving mode a continuous film of nickel on metal wire for electrical use
FR2609333B1 (fr) * 1987-01-06 1991-07-19 Pechiney Aluminium Dispositif de controle au defile de la continuite d'un revetement metallique sur un fil metallique de nature differente
FR2609292B1 (fr) * 1987-01-06 1989-03-24 Pechiney Aluminium Procede et dispositif pour deposer electrolytiquement au defile un film continu de nickel sur du fil metallique a usage electrique
EP0289432A1 (fr) * 1987-03-30 1988-11-02 PECHINEY RECHERCHE (Groupement d'Intérêt Economique régi par l'ordonnance du 23 Septembre 1967) Procédé pour former à la surface d'un substrat en alliage d'aluminium une zone riche en aluminiure d'au moins un des éléments nickel, fer, cobalt
AT399167B (de) * 1991-06-10 1995-03-27 Andritz Patentverwaltung Verfahren und vorrichtung zum elektrolytischen beizen von kontinuierlich durchlaufendem elektrisch leitendem gut
JP2842521B2 (ja) 1994-12-28 1999-01-06 三菱電機株式会社 交換型記憶装置並びに記録媒体カートリッジ並びにカード型装置用スロットの利用方法
RU2155247C2 (ru) * 1998-03-06 2000-08-27 Закрытое акционерное общество "Кыштымский медеэлектролитный завод" Аппарат для покрытия металлов
FR2796656B1 (fr) * 1999-07-22 2001-08-17 Pechiney Aluminium Procede de nickelage en continu d'un conducteur en aluminium et dispositif correspondant
JP2009280917A (ja) * 2004-02-06 2009-12-03 Kansai Engineering:Kk 線材
JP4961518B2 (ja) * 2006-03-07 2012-06-27 株式会社日本アレフ 電気メッキ装置
EP1870496A1 (en) * 2006-06-20 2007-12-26 NV Bekaert SA An apparatus and method for electroplating a substrate in a continuous way.
WO2010006313A1 (en) * 2008-07-10 2010-01-14 Robert Norman Calliham Method for producing copper-clad aluminum wire
JP2013155413A (ja) * 2012-01-31 2013-08-15 Fudauchi Kogyo Co Ltd 非接触めっき方法及びその装置
DE102017107007A1 (de) * 2017-03-31 2018-10-04 Mkm Mansfelder Kupfer Und Messing Gmbh Verfahren zum Herstellen eines Kupferprofils aus einem Kupferausgangsmaterial sowie Kupferprofil und Vorrichtung
IT201800010280A1 (it) * 2018-11-13 2020-05-13 Koral Di Orlando Gianpaolo Metodo per il Trattamento di Superfici Metalliche

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB701717A (en) * 1951-10-08 1953-12-30 Internat Kenmore Ltd Electrodeposition with nickel
GB775769A (en) * 1954-05-13 1957-05-29 Internat Kenmore Ltd Process and machine for continuously electroplating wire and similar strip material
DE1621115C3 (de) * 1967-10-17 1981-06-25 Metalloxyd GmbH, 5000 Köln Verfahren zur Herstellung eines Trägers aus Aluminium für lithographische Druckplatten
JPS517081B1 (enrdf_load_stackoverflow) * 1971-04-17 1976-03-04
US3915667A (en) * 1973-09-20 1975-10-28 Westinghouse Electric Corp Abrasion resistant coating for aluminum base alloy and method
DE2447584C2 (de) * 1974-10-05 1983-01-05 Steuler Industriewerke GmbH, 5410 Höhr-Grenzhausen Verfahren und Vorrichtung zur elektrolytischen Metallummantelung von Aluminiumdraht
US4097342A (en) * 1975-05-16 1978-06-27 Alcan Research And Development Limited Electroplating aluminum stock
US4128459A (en) * 1977-11-25 1978-12-05 Allied Chemical Corporation Continuous electroplating of alloy onto metallic strip
US4169770A (en) * 1978-02-21 1979-10-02 Alcan Research And Development Limited Electroplating aluminum articles
AT368196B (de) * 1980-01-22 1982-09-27 Computer Process Automations G Einrichtung zur herstellung von galvanisch beschichteten draehten

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19951324A1 (de) * 1999-10-20 2001-05-03 Atotech Deutschland Gmbh Verfahren und Vorrichtung zum elektrolytischen Behandeln von elektrisch leitfähigen Oberflächen von gegeneinander vereinzelten Platten- und Folienmaterialstücken sowie Anwendung des Verfahrens
DE19951325A1 (de) * 1999-10-20 2001-05-10 Atotech Deutschland Gmbh Verfahren und Vorrichtung zum elektrolytischen Behandeln von elektrisch gegeneinander isolierten, elektrisch leitenden Strukturen auf Oberflächen von elektrisch isolierendem Folienmaterial sowie Anwendungen des Verfahrens
DE19951325C2 (de) * 1999-10-20 2003-06-26 Atotech Deutschland Gmbh Verfahren und Vorrichtung zum elektrolytischen Behandeln von elektrisch gegeneinander isolierten, elektrisch leitfähigen Strukturen auf Oberflächen von elektrisch isolierendem Folienmaterial sowie Anwendungen des Verfahrens
DE19951324C2 (de) * 1999-10-20 2003-07-17 Atotech Deutschland Gmbh Verfahren und Vorrichtung zum elektrolytischen Behandeln von elektrisch leitfähigen Oberflächen von gegeneinander vereinzelten Platten- und Folienmaterialstücken sowie Anwendung des Verfahrens
US6979391B1 (en) 1999-10-20 2005-12-27 Atotech Deutschland Gmbh Method and device for the electrolytic treatment of electrically conducting structures which are insulated from each other and positioned on the surface of electrically insulating film materials and use of the method

Also Published As

Publication number Publication date
FR2526052B1 (fr) 1985-10-11
FR2526052A1 (fr) 1983-11-04
DE3361277D1 (en) 1986-01-02
EP0093681A1 (fr) 1983-11-09
JPH0255516B2 (enrdf_load_stackoverflow) 1990-11-27
CA1197212A (fr) 1985-11-26
JPS58193392A (ja) 1983-11-11
US4492615A (en) 1985-01-08

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