US3676322A - Apparatus and method for continuous production of electrolytically treated wires - Google Patents

Apparatus and method for continuous production of electrolytically treated wires Download PDF

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Publication number
US3676322A
US3676322A US891A US3676322DA US3676322A US 3676322 A US3676322 A US 3676322A US 891 A US891 A US 891A US 3676322D A US3676322D A US 3676322DA US 3676322 A US3676322 A US 3676322A
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United States
Prior art keywords
wire
electrolytic
tank
tanks
plating
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Expired - Lifetime
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US891A
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English (en)
Inventor
Yoshihiro Kamata
Takashi Hirose
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Furukawa Electric Co Ltd
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Furukawa Electric Co Ltd
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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
    • C25D7/0607—Wires
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/26—Special arrangements with regard to simultaneous or subsequent treatment of the material
    • B21C47/265—"helicofil" systems
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
    • C25F7/00—Constructional parts, or assemblies thereof, of cells for electrolytic removal of material from objects; Servicing or operating

Definitions

  • Such a conventional apparatus has a defect that the cost of electrolytic treatment is high due to the necessity of a large amount of electrolytic, the difficulty in maintenance of electrolytic and poor working efficiency.
  • the main feature of the present invention lies in an apparatus and method for producing electrolytically treated wires, which comprises a means for guiding metal wires to be treated, at least one pair of guide rolls serving also as electrode contacts and an electrolytic treatment tank containing an electrolyte in which the metal wires are immersed, said guide rolls being positioned outside the electrolyte, said electrolytic treatment tank being provided with one electrode, and said metal wires serving as another electrode connected to said guide rolls.
  • the apparatus and method for producing electrolytically treated wires according to the present invention may be also useful for both electrolytic polishing and electro-plating of metal wires, and particularly in case of electro-plating of metal wires where the wires are repeatedly passed in and out of the plating bath to give a multiple layers of plating the present invention is advantageous in that multiple layers of electro-plating of desired thickness having better adhesiveness, because when the wires are taken out of the plating tank during the repeated passing in and out of the plating tank, the surface of the plated wires can be maintained in wetted condition by liquid shower or liquid spray.
  • the electrolytic treatment tank is provided with slits at the inlet and the outlet thereof for passing the wires and preventing the electrolyte, and a forced circulation system for the electrolyte is used for forcedly returning the electrolyte which flows out of the inlet and outlet to the electrolytic treatment tank so that a constant amount of electrolyte is maintained in the electrolytic treatment tank.
  • their rotating shafts may be horizontal or perpendicular, and the means for guiding the wires provided on the guide rolls may be conveniently a plurality of grooves provided around the circumferential surfaces of the guide rolls.
  • the wires to be treated according to the present invention are pretreated in a pre-treatment tank as required.
  • FIG. 1 to FIG. 4 show respectively one embodiment of the apparatus for producing electrolytically treated wires according to the present invention
  • FIG. 1 is a plane view
  • FIG. 2 is a side view
  • FIG. 3 is a slant view of the guide rolls and FIG. 4 is a slant view of the electrolytic.
  • 1 is an electrolytic treatment tank
  • 2 is an electrical conductive guide roll
  • 3 is a shaft of the guide roll
  • 4 is a groove on the circumferential surface of the guide roll
  • 5 is a wire to be treated, which is used as cathode in case of an ordinary electro-plating, and is used as anode in case of electrolytic polishing
  • 6 is an electrode plate arranged within the electrolytic treatment tank 1, which plate is used as an anode in case of electro-plating and used as cathode in case of electrolytic polishing
  • 7 is a contact which is contacted with and rotated by the guide roll
  • 8 is a distribution line
  • 9 is an electric power source for the electrolysis
  • 10 is a feeding drum
  • 11 and 12 are respectively pretreatment equipment
  • 13 and 14 are respectively after-treatment equipment
  • 15 is a coiling drum.
  • FIG. 3 which is a slant view showing the guide roll 2 in operation
  • a plurality of guiding grooves are made on the circumferential surface of each of the two guide rolls 2a and 2b, so that the wire 5 to be treated is wound and received in these grooves as shown in the drawing and is delivered in the direction shown by an arrow as the guide rolls 2a and 2b rotate.
  • FIG. 4 is a slant view of the electrolytic treatment tank 1 in which the wire to be treated travels in the direction shown by an arrow.
  • two electrolytic tanks la and lb extending in the travelling direction of the wire 5 are arranged in parallel to each other, at both ends of these two treatment tanks are arranged the guide rolls 2a and 2b each vertically and rotatably. These'rolls 2a and 2b are connected to the electrodes of the electric power source 9 through contacts, and the electrolytic treatment tanks la and lb are also connected to the power source 9 through the electrode plate 6.
  • 16 is a dividing plate positioned in the tank inward the wire inlet and the wire outlet, and 17 is a side wall of the treatment tanks la and lb.
  • each of the dividing plate 16 and the side wall 17 is provided with narrow slits I8 and 19 respectively for passing the wire therethrough.
  • the wire 5 passes through the slits 18 and 19 and advances without contacting the dividing plate 16 and the side wall 17 of the tank.
  • the electrolyte contained in the central portion defined by the dividing plates 16 in the tank 1 drops through the slit I8 into a space 20, but returned into the central portion of the treating tank by a circulating system (not shown in the drawings) for repeated use.
  • a circulating system not shown in the drawings
  • the wire 5 delivered out from the delivery drum 10 passes through the pre-treatment tanks 11 and 12 and is guided into the lowest groove 4a on the guide roll 2a, then passes through the electrolytic treatment tank In into the lowest groove 4b on the guide roll 2b, and passes through the electrolytic treatment tank 1b into the groove 4c next to the lowest on the guide roll 2a.
  • the wire 5 passes from the guide roll 2a through the electrolytic treatment tank la, the guide roll 2b, the electrolytic treatment 2b into the top groove 48 on the guide roll 2b and then passes through the after-treatment tanks 13 and 14 and is coiled on the winding drum.
  • the treatment tanks, the slits and the guide rolls are described as being in a tandem arrangement. But the same principle can be applied when the treatment tanks, the slits and the guide roll are arranged in parallel. In this way, the wire 5 is subjected to electrolytic treatment during its passage through the electrolytic tanks 1a and 1b.
  • EXAMPLE 1 A brass (Cu 65%, Zn 35%) wire of 2 mm diameter coiled on a delivery drum 10 was taken out from the drum and immersed in NaOH aqueous solution for several seconds, washed with water and them subjected to nickel plating in the plating apparatus according to the present invention as under,
  • composition of the nickel plating bath is the composition of the nickel plating bath:
  • Nickel sulfate 250 g/l Boric acid 30 gll Nickel chloride g/l The guide rolls were made of 25 cm diameter stainless steel rolls and rotated at a constant speed of 15 rpm to obtain the wire speed of 11.8 m/min.
  • the length of the nickel plating bath in each of the two tanks was in and the wire was wound in 30 stepwise so that the length of the total immersed wire was 300 meters (30 steps X 2 tanks X 5m).
  • the input current density was 5 A/dm at 100 percent current efficiency so that the thickness of nickel coated on the brass wire was 25 micron,
  • EXAMPLE 2 A steel wire of 20 mm diameter coiled on a delivery drum was immersed for several seconds in an aqueous solution of orthosodium silicate, washed with water, and then subjected to copper electro-plating for 1 minute in an electrolyte containing 20 g/l of copper cyanide, 43 gll of potassium cyanide, and again washed with water, subjected to stick tin-plating, washed with water, dried and coiled on the drum 15. The above thick tin-plating was done as under.
  • the plating bath contained 120 g/l of potassium stannate only.
  • the guide rolls 2 were titanium rolls of 25 cm diameter and rotated at a constant speed of 15.0 rpm so that the speed of the copper plated steel wire was 11.8 m/min.
  • the bath length in each of the two treating tanks was 5 m and the wire was wound in 30 stepwise so that the total length of immersed wire was 300 meter (30 steps X 2 tanks X 5 m).
  • the imput current density was 283 A/dm at current efficiency of 85 percent so that the thickness of tin coated on the copper plated wire was 10.5 micron.
  • the production rate will be about 1/50 if the production (plating) is made at a similar floor area as shown in this example.
  • EXAMPLE 3 In this example, the same electro-plating apparatus and the same wire speed as in Example 2 were used for cadmium plat ing.
  • a brass wire of 1.5 mm diameter was pre-treated in a similar way as in Example 1 and plated with copper and subjected to a thick cadmium plating in a bath containing 30 g/l of cadmium oxide and 120 g/l of sodium cyanide at a current density of 565 A/dm to obtain 35 micron thickness of uniform cadmium plating on the wire under the same plating conditions as in Example 1.
  • the tin-plated steel wire obtained in Example 2 and the cadmium-plated brass wire obtained in Example 3 were found to be free from surface crachings and to have uniformity and high adhesion.
  • EXAMPLE 4 Pure copper wire of 3.0 mm diameter coiled on the delivary drum 10 was degreased for 30 seconds in trichlor ethylen vapor, then subjected to polishing in an electrolytic polishing apparatus according to the present invention, and washed with water, dried and coiled. The electrolytic polishing was done as under.
  • the electrolyte was a phosphoric acid (specific gravity 1.5 g/cm") streight composition.
  • the electrolyte was effected at 25 C., at current voltage of 1.6V.
  • the guide roll 2 in the inventive electrolytic polishing apparatus was made of titanium having 25 cm diameter, and rotated at a constant speed of 5.1 rpm so that the wire speed was 4 m/min.
  • Two electrolytic treatment tanks were used. The length of treating bath in each of the tanks was 1 m, and the wire was wound in 30 stepwise so that the total length of wire immersed in the electrolyte was 60 m (30 steps X 2 tanks 1m).
  • the immersion time (polishing time) is calculated from the above factors as 60 m 4 m/min. 15 min.
  • the inventive apparatus is one having such an extraordinarily high working efficiency as permits a high-speed electrolytic polishing of 4 m/min. in a tank havingonly one meter length for as long as 15 minutes.
  • the copper wire having a large diameter and high electrical conductivity was used.
  • wires such as steel wires of less electrical conductivity and smaller diameter are treated, further advantages can be obtained, for in case of a long time electrolytical polishing of steel wires in a conventional apparatus, it is necessary to provide current contacts at many various points, if the current is input to the wire used as the electrode, thus a very high level of equipment cost is required.
  • the present invention can eliminate the effect of a conventional apparatus that a very large apparatus occupying a large floor area is required, and can provide remarkable advantages that the quality control in electrolytic treatments is much easier, that better working efficiency and thus a very high economy can be obtained as well, that a good quality of electrolytically treated wire can be obtained, that particularly the anode (in case of electroplating) can be easily and continuously supplemented, and that intermediate electrode contacts needed by an ordinary apparatus for a long period treatment can be substituted by the grooved rollv
  • the apparatus of the present invention is useful for a very wide range of applications and can be used for all kinds of electrolytic treatments and can produce all kinds of electrolytically treated wires only by selection of the electrolyte, the groove number on the contact roll, the wire speed and the connection to power source.
  • Apparatus for electrolytic treatment of wire comprising tank means containing electrolyte therein, a pair of rollers positioned on opposite sides of said tank means, said rollers being formed of electrically conductive material, counter electrode means located within said tank means, said wire to be treated being spirally wound in a continuous manner about said rollers and extending back and forth therebetween and through said tank means, means forming an electrical circuit path externally of said tank means between each of said rollers and said counter electrode means thereby to form within said tank means an electrolytic cell including said wire as an electrode thereof, said rollers being located completely externally of said tank means, and wall means located interiorly of said tank means and defining slots through which said wire extends for retaining said electrolyte within said tank means while enabling said wire to pass into and out of said tank means, said tank means being totally devoid of rollers on the interior thereof.
  • rollers each comprise an axis of rotation arranged parallel to each other and wherein said slots extend in a direction parallel to said axes.
  • said counter electrode means comprise a pair of electrodes juxtaposed on opposite sides of said wire passing within said tank means, said pair of electrodes each extending for equivalent distances across the length of said wire.
  • tank means comprise a pair of separate tanks adjacently arranged to have said wire which extends between said rollers pass through one of said tanks in one direction and through the other of said tanks in an opposite direction.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Electroplating Methods And Accessories (AREA)
US891A 1970-01-06 1970-01-06 Apparatus and method for continuous production of electrolytically treated wires Expired - Lifetime US3676322A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US89170A 1970-01-06 1970-01-06
DE19702008606 DE2008606B2 (de) 1970-01-06 1970-02-24 Einrichtung zum kontinuierlichen galvanisieren von draht
GB1976470 1970-04-24

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DE (1) DE2008606B2 (en:Method)
GB (1) GB1302793A (en:Method)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3869371A (en) * 1972-07-27 1975-03-04 Int Standard Electric Corp Electrotinning wire
US4420377A (en) * 1981-05-05 1983-12-13 The Furukawa Electric Company, Ltd. Method for continuously electroplating wire or the like and apparatus therefor
US4470884A (en) * 1981-08-07 1984-09-11 National Ano-Wire, Inc. High speed aluminum wire anodizing machine and process
EP0209168A1 (en) * 1985-07-12 1987-01-21 N.V. Bekaert S.A. Process and apparatus for cleaning by electrochemical pickling with alternating current of specified frequency
US4891105A (en) * 1987-01-28 1990-01-02 Roggero Sein Carlos E Method and apparatus for electrolytic refining of copper and production of copper wires for electrical purposes
US5087342A (en) * 1988-04-07 1992-02-11 Seneca Wire And Manufacturing Company Continuous steel strand electrolytic processing
US5242571A (en) * 1992-10-26 1993-09-07 Asarco Incorporated Method and apparatus for the electrolytic production of copper wire
USRE34664E (en) * 1987-01-28 1994-07-19 Asarco Incorporated Method and apparatus for electrolytic refining of copper and production of copper wires for electrical purposes
EP1126050A1 (de) * 2000-02-18 2001-08-22 Graf + Cie Ag Verfahren und Vorrichtung zum Herstellen eines Drahtes
NL1033429C2 (nl) * 2007-02-20 2008-08-21 Meco Equip Eng Inrichting voor het met vloeistof behandelen van een bandvormig substraat.
FR3009505A1 (fr) * 2013-08-09 2015-02-13 Numalliance Poste d'amenage de fil avec galets en titane.
US9157160B2 (en) 2013-08-22 2015-10-13 Ashworth Bros., Inc. System and method for electropolishing or electroplating conveyor belts
CN106148924A (zh) * 2016-08-30 2016-11-23 德州恒远焊材有限公司 一种高速镀铜装置
US20230120376A1 (en) * 2020-08-18 2023-04-20 Teikoku Ion Co., Ltd Plating apparatus, plating method, and method for producing wire rod having the surface plated

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1372341A (en) 1973-04-05 1974-10-30 Standard Telephones Cables Ltd Apparatus and method for continuously electroplating metal on moving wire
CN103820830B (zh) * 2014-02-13 2016-08-17 德清县佳伟线缆有限公司 一种线材电镀设备
CN103820831B (zh) * 2014-02-13 2016-08-24 德清县佳伟线缆有限公司 一种金属线材的电镀处理设备

Citations (8)

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Publication number Priority date Publication date Assignee Title
US830093A (en) * 1902-06-18 1906-09-04 American Steel & Wire Co Apparatus for galvanizing wire.
US2293810A (en) * 1938-06-22 1942-08-25 Nat Standard Co Electroplating stainless steel
US2495695A (en) * 1944-05-08 1950-01-31 Kenmore Metals Corp Electroplating apparatus
US2497894A (en) * 1944-10-14 1950-02-21 Nat Standard Co Method of electroplating fine wire of low elastic limit
US2876191A (en) * 1952-09-05 1959-03-03 Western Electric Co Electroplating apparatus
US3259557A (en) * 1962-03-02 1966-07-05 Nat Steel Corp Method of electrodepositing aluminum
GB1089677A (en) * 1964-07-03 1967-11-01 Int Research & Dev Co Ltd Improvements in and relating to electro-plating of wire or strip material
US3436330A (en) * 1965-07-15 1969-04-01 United Carr Inc Electroplating apparatus

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US830093A (en) * 1902-06-18 1906-09-04 American Steel & Wire Co Apparatus for galvanizing wire.
US2293810A (en) * 1938-06-22 1942-08-25 Nat Standard Co Electroplating stainless steel
US2495695A (en) * 1944-05-08 1950-01-31 Kenmore Metals Corp Electroplating apparatus
US2497894A (en) * 1944-10-14 1950-02-21 Nat Standard Co Method of electroplating fine wire of low elastic limit
US2876191A (en) * 1952-09-05 1959-03-03 Western Electric Co Electroplating apparatus
US3259557A (en) * 1962-03-02 1966-07-05 Nat Steel Corp Method of electrodepositing aluminum
GB1089677A (en) * 1964-07-03 1967-11-01 Int Research & Dev Co Ltd Improvements in and relating to electro-plating of wire or strip material
US3436330A (en) * 1965-07-15 1969-04-01 United Carr Inc Electroplating apparatus

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3869371A (en) * 1972-07-27 1975-03-04 Int Standard Electric Corp Electrotinning wire
US4420377A (en) * 1981-05-05 1983-12-13 The Furukawa Electric Company, Ltd. Method for continuously electroplating wire or the like and apparatus therefor
US4470884A (en) * 1981-08-07 1984-09-11 National Ano-Wire, Inc. High speed aluminum wire anodizing machine and process
EP0209168A1 (en) * 1985-07-12 1987-01-21 N.V. Bekaert S.A. Process and apparatus for cleaning by electrochemical pickling with alternating current of specified frequency
US4891105A (en) * 1987-01-28 1990-01-02 Roggero Sein Carlos E Method and apparatus for electrolytic refining of copper and production of copper wires for electrical purposes
USRE34664E (en) * 1987-01-28 1994-07-19 Asarco Incorporated Method and apparatus for electrolytic refining of copper and production of copper wires for electrical purposes
US5087342A (en) * 1988-04-07 1992-02-11 Seneca Wire And Manufacturing Company Continuous steel strand electrolytic processing
US5242571A (en) * 1992-10-26 1993-09-07 Asarco Incorporated Method and apparatus for the electrolytic production of copper wire
AU761171B2 (en) * 2000-02-18 2003-05-29 Graf + Cie Ag Method and apparatus for manufacturing a wire
US6544402B2 (en) 2000-02-18 2003-04-08 Graf + Cie Ag Method and apparatus for manufacturing a wire
EP1126050A1 (de) * 2000-02-18 2001-08-22 Graf + Cie Ag Verfahren und Vorrichtung zum Herstellen eines Drahtes
NL1033429C2 (nl) * 2007-02-20 2008-08-21 Meco Equip Eng Inrichting voor het met vloeistof behandelen van een bandvormig substraat.
WO2008103027A1 (en) * 2007-02-20 2008-08-28 Meco Equipment Engineers B.V. Device for treating a band-shaped substrate with a liquid
US20100032307A1 (en) * 2007-02-20 2010-02-11 Meco Equipment Engineers B.V. Device for treating a band-shaped substrate with a liquid
CN101687239B (zh) * 2007-02-20 2012-08-29 Meco设备工程有限公司 利用液体来处理带状基底的装置
FR3009505A1 (fr) * 2013-08-09 2015-02-13 Numalliance Poste d'amenage de fil avec galets en titane.
US9157160B2 (en) 2013-08-22 2015-10-13 Ashworth Bros., Inc. System and method for electropolishing or electroplating conveyor belts
CN106148924A (zh) * 2016-08-30 2016-11-23 德州恒远焊材有限公司 一种高速镀铜装置
CN106148924B (zh) * 2016-08-30 2018-05-25 德州市立尊焊丝有限公司 一种高速镀铜装置
US20230120376A1 (en) * 2020-08-18 2023-04-20 Teikoku Ion Co., Ltd Plating apparatus, plating method, and method for producing wire rod having the surface plated

Also Published As

Publication number Publication date
DE2008606B2 (de) 1973-03-01
DE2008606A1 (de) 1971-09-16
GB1302793A (en:Method) 1973-01-10

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