US3896010A - Process and apparatus for the coating of an electrically conductive fibrous strand - Google Patents

Process and apparatus for the coating of an electrically conductive fibrous strand Download PDF

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Publication number
US3896010A
US3896010A US297851A US29785172A US3896010A US 3896010 A US3896010 A US 3896010A US 297851 A US297851 A US 297851A US 29785172 A US29785172 A US 29785172A US 3896010 A US3896010 A US 3896010A
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United States
Prior art keywords
strand
electrolyte
jet
fluid
whirl chamber
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Expired - Lifetime
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US297851A
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English (en)
Inventor
Jochen Vetter
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MAN AG
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MAN Maschinenfabrik Augsburg Nuernberg AG
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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

Definitions

  • ABSTRACT An apparatus and process for coating and treatment of an electrically conductive fiber strand made of a multiplicity of individual filaments of a quasi indefinite length, said process comprising electrically connecting the fiber strand to a voltage source to act as a cathode, passing the strand through an anode-equipped whirl chamber, and opening up the strand by subjecting the strand to a continuously or discontinuously supplied jet of fluid electrolyte to thereby uniformly treat the filaments throughout the strand to said electrolyte.
  • the jet of electrolyte is arranged with a sinusoidal line in the axial direction of the strand and annularly to the strand in a direction counter to the direction of the twist in the strand.
  • metal from the electrolyte is deposited in a maximally dense and uniform manner on all individual filaments (e.g. carbon filaments) in the fiber bundle, without necessitating a mechanical treatment (untwistingfand a damaging of the individual filaments.
  • the process furthermore is suitable for being conducted in one operating step in a maximally simple apparatus to thereby ensure a substantial automation.
  • the desired objective is attained by electrically connecting the fiber strand as a cathode and pulling the strand through an anodeequipped whirl chamber in such a manner that it is fanned out by at least one continuously or discontinuously supplied jet of fluid electrolyte that impinges on the periphery of the strand. Furthermore, according to the invention, the fiber strand electroplated in the whirl chamber is conveyed so that it comes subsequently into contact with a roll also electrically connected as the cathode.
  • the fiber strand serving as a cathode thus travels through the whirl chamber into which an electrolytic fluid, especially liquid, is sprayed.
  • This liquid is sprayed radially inwardly into the fiber strand so that the strand is fanned out approximately across the length of the whirl chamber.
  • the liquid electrolyte jet due to its passage past the anode, is simultaneously a currentconductive element or means, a deposition of metal takes place at the points in the strand reached by the jet.
  • the electrolyte advantageously also reaches the filaments in the core of the fiber strand, without any interspersed shielding due to external filaments.
  • a special advantage of the process of this invention is, moreover, seen in that any desired electrolyte fluid can be employed (for example an alkaline or acidic Cu electrolyte; nickel sulfamate, etc.).
  • any desired electrolyte fluid can be employed (for example an alkaline or acidic Cu electrolyte; nickel sulfamate, etc.).
  • Exemplary of the metal-containing electrolytes suitable for the purposes of this invention are alkaline tin electrolyte and silver-cyanide electrolyte.
  • the apparatus for conducting the process of this invention resides essentially in that the whirl chamber, consisting of an electrically nonconductive material e.g. polyvinyl chloride (PVC), exhibits an annular space defined on the inside by a bushing or inner wall means; this space accommodates an annular anode, and the liquid electrolyte feed inlet terminates in this space.
  • PVC polyvinyl chloride
  • a roll In order to place the fiber strand to be electroplated in the whirl chamber under current, a roll is provided which is connected with the cathode of an electrical current source over which roll the electroplated fiber strand is passed.
  • the nozzles through which the electrolytic fluid exits from the annular space to the fiber strand, can be of a circular or slot-like shape; however, their configuration must ensure that an appropriate amount of turbulence required for fanning out the fiber strand is positively provided.
  • An additional advantage can be obtained, if required, by moving the nozzles, as well as feeding the electrolyte in a pulsating manner.
  • the use of the apparatus of this invention is not limited merely to the electroplating of fiber strands; rather, it is also possible to utilize the apparatus for electrolytic etching or scouring of fiber strands or otherwise treating the strands with a fluid electrolyte.
  • FIG. 1 shows the apparatus of the invention in an elevational view
  • FIG. 2 shows a whirl chamber of the invention.
  • the fiber strand 2 consisting of about l0,000 individual carbon filaments, passes from a take-off reel 1 approximately in the axial direction through the passage provided in whirl chamber 3 and over a guide roll 4 to a windup reel 5.
  • a ringshaped anode 7 is arranged which is connected with an electrical current source 9 via an electrical line 8 provided with an ammeter A; the voltage of this current source is measured by a voltmeter V.
  • a feed line 10 leads into the annular space 6, by means of which the liquid electrolyte E (e.g.
  • nickel sulfamate solution is conveyed by a pump 1 1 from a storage tank 12 through the nozzles 13 against the fiber strand 2.
  • the excess electrolytic liquid dripping off from the fiber strand drips into the storage tank.
  • the fiber strand 2 After the fiber strand 2 has been coated in the whirl chamber 3, it is conducted via the roll 4, connected to the cathode of the current source 9 by way of an electrical line 14.
  • the objective is achieved that the fiber strand becomes effective to serve as a cathode.
  • the electroplated fiber strand is finally, after a drying step (by drier means not shown), wound up on the windup reel 5 in the direction of the arrow.
  • the whirl chamber 3 (FlG. 2) comprises essentially two circular housing sections 15 and 16, connected with each other and made of an electrically nonconductive material, e.g. PVC, teflon (PTFE), or glass; these sections form the annular space 6.
  • the housing section 15 has a disk portion and a bushing portion 15a defining a wall extending from the bore of the disk portion disposed along the axis A.
  • the wall of this bushing has six nozzles 13 uniformly distributed along the circumference', each of these nozzles extends approximately in accordance with a sinusoidal line in an axial parallel manner (axis A). The length of these nozzles, projected onto the axis A, corresponds approximately to the height of the anode 7.
  • the nozzles can be of any desired configuration; for example, it is possible to arrange bores or slots of any desired shape, but the nozzles must ensure that the fiber strand moving in the axis A is uniformly exposed along its entire periphery to the turbulent jets of electrolyte and is thereby fanned out.
  • the annular anode 7, as well as the wall portion of the second housing section 16 are seated on the disk portion of the housing section 15.
  • the contact surfaces of the two housing sections 15 and 16 are provided with gaskets l7 and 18 which thus seal the annular space 6 appropriately.
  • bores and 19 are provided in the housing section 16 for the feed line 10 of the liquid electrolyte as well as for the anode line 8.
  • the bores 20 are intended for the screws that are used to assemble the housing.
  • EXAMPLE 1 In an apparatus as illustrated in FIGS. 1 and 2 a strand of carbon filaments 10,000) having a denier of l gram per meter and of a twist of 6 turns per meter under a tension of 2 pounds is passed at a speed of feet per minute through a whirl chamber having six nozzles through which nickel sulfamate is supplied as an electrolyte. The electrolyte is injected via the nozzles (each having a discharge opening with a length of 1 inch and a width of .02 inch) at a rate of 5 liters per minute and under a pressure of 1000 mm water column.
  • the high velocity jets of electrolyte impinging on the strand cause the strand to open or fan out so that the center filaments are uniformly coated with the electrolyte.
  • a voltage of 5 volts and a current of 2 amperes are used to effect the required electroplating of the nickel metal.
  • EXAMPLE 2 Additional strands of the following electroconductive filaments are treated with various electrolytes by fol- 5 lowing the procedure set forth in Example I.
  • the filaments within the center are observed to have the same degree of treatment as the filaments on the outer periphery.
  • metal'containing electrolytes may be used for treating the fiber strand.
  • suitable electrolytes are nickel sulfamate, silver cyanide and like electrolytes which contain metal ions of cobalt, chromium, zinc, cadmium, tin, lead, gold, platinum, iron, indium, antimony, arsenic, manganese, rhenium, selenium, tellurium, and bismuth.
  • each jet of electrolyte is arranged with a sinusoidal line in the axial direction of the strand and annularly to the strand in a direction counter to the direction of the twist in said strand.
  • An apparatus for treating a continuous fiber strand of a multiplicity of electrically conductive filaments comprising a storage tank for storing a reservoir of fluid electrolyte,
  • a whirl chamber of an electrically nonconductive material said chamber having a passage and an annular space defined by an outer and an inner wall means, an anode within said space, a fluid electrolyte feed means terminating in said space, said chamber being separated from said storage tank such that said passage is substantially free of the fluid electrolyte reservoir in said storage tank,
  • nozzle means for directing at least one jet of electrolyte onto said strand, said nozzle means being arranged so that the strand is opened up by the electrolyte to allow exclusive treatment of the filaments within said strand by said jet of electrolyte, wherein said nozzle means includes a plurality of individual nozzles, each of said individual nozzles extending in a sinusoidal line in the longitudinal direction and annularly with respect to the strand.
  • nozzle means are radially oriented slots extending through said inner wall means, each of said slots being disposed to extend essentially in the longitudinal direction and being uniformly distributed along the periphery of said strand.

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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)
  • Electroplating Methods And Accessories (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
US297851A 1971-10-16 1972-10-16 Process and apparatus for the coating of an electrically conductive fibrous strand Expired - Lifetime US3896010A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2151618A DE2151618C3 (de) 1971-10-16 1971-10-16 Verfahren und Vorrichtung zum kathodischen Behandeln dünner elektrisch leitender Faserstränge bzw. -bündel

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US3896010A true US3896010A (en) 1975-07-22

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US297851A Expired - Lifetime US3896010A (en) 1971-10-16 1972-10-16 Process and apparatus for the coating of an electrically conductive fibrous strand

Country Status (14)

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US (1) US3896010A (da)
JP (1) JPS4847437A (da)
AT (1) AT316249B (da)
BE (1) BE790167A (da)
CH (1) CH584766A5 (da)
DD (1) DD100285A5 (da)
DE (1) DE2151618C3 (da)
DK (1) DK141970C (da)
FI (1) FI53988C (da)
FR (1) FR2156258B3 (da)
GB (1) GB1410028A (da)
IT (1) IT967931B (da)
NL (1) NL7213630A (da)
NO (1) NO133410C (da)

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4128459A (en) * 1977-11-25 1978-12-05 Allied Chemical Corporation Continuous electroplating of alloy onto metallic strip
US4130465A (en) * 1977-03-30 1978-12-19 Japan Exlan Company Limited Treatment of carbon fibers
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
US4162952A (en) * 1977-02-24 1979-07-31 Societe Anonyme dite: F.M.C. Apparatus for electrolysis by projection
US4169780A (en) * 1977-05-24 1979-10-02 Societe Les Piles Wonder Process and apparatus for making negative electrodes, in particular in cadmium or zinc, for electrochemical generators, and the negative electrodes thus obtained
US4448655A (en) * 1981-11-17 1984-05-15 Inoue-Japax Research Incorporated Traveling-wire electroerosion machining electrode and method
US4468294A (en) * 1983-05-19 1984-08-28 Honeywell Inc. Acoustic desensitization of optical fibers by means of nickel jackets
EP0137912A1 (en) * 1983-06-24 1985-04-24 American Cyanamid Company Apparatus and process for continuously plating fiber
US4609449A (en) * 1982-03-16 1986-09-02 American Cyanamid Company Apparatus for the production of continuous yarns or tows comprising high strength metal coated fibers
US4661403A (en) * 1982-03-16 1987-04-28 American Cyanamid Company Yarns and tows comprising high strength metal coated fibers, process for their production, and articles made therefrom
US4686013A (en) * 1986-03-14 1987-08-11 Gates Energy Products, Inc. Electrode for a rechargeable electrochemical cell and method and apparatus for making same
US4852453A (en) * 1982-03-16 1989-08-01 American Cyanamid Company Chaff comprising metal coated fibers
US4904351A (en) * 1982-03-16 1990-02-27 American Cyanamid Company Process for continuously plating fiber
US4909910A (en) * 1982-03-16 1990-03-20 American Cyanamid Yarns and tows comprising high strength metal coated fibers, process for their production, and articles made therefrom
US5070606A (en) * 1988-07-25 1991-12-10 Minnesota Mining And Manufacturing Company Method for producing a sheet member containing at least one enclosed channel
US5078840A (en) * 1989-07-20 1992-01-07 Toho Rayon Co., Ltd. Process for the surface treatment of carbon fiber strands
USRE34651E (en) * 1988-02-19 1994-06-28 Minnesota Mining And Manufacturing Company Sheet-member containing a plurality of elongated enclosed electrodeposited channels and method
US5595640A (en) * 1994-08-29 1997-01-21 Metallglanz Gesellschaft Fuer Entgratung Und Oberflaechentechnik Mbh Method and apparatus for continuous galvanic application of metallic layers on a body
US20080280045A1 (en) * 2003-12-08 2008-11-13 Jar-Wha Lee Method and apparatus for the treatment of individual filaments of a multifilament yarn
US20100072071A1 (en) * 2008-09-19 2010-03-25 Metokote Corporation Systems and methods for electrocoating a part
US20140057127A1 (en) * 2012-08-22 2014-02-27 Infineon Technologies Ag Method for processing at least one carbon fiber, method for fabricating a carbon copper composite, and carbon copper composite
US9324472B2 (en) 2010-12-29 2016-04-26 Syscom Advanced Materials, Inc. Metal and metallized fiber hybrid wire
CN118173330A (zh) * 2024-05-14 2024-06-11 山东无棣海丰电缆有限公司 一种海洋电缆加工用防腐蚀处理装置

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4680100A (en) * 1982-03-16 1987-07-14 American Cyanamid Company Electrochemical cells and electrodes therefor
DE3241452C2 (de) * 1982-10-06 1985-05-30 Schweizerische Aluminium Ag, Chippis Verfahren und Vorrichtung zur galvanischen Erzeugung von Dispersionsbeschichtungen sowie deren Anwendung
DE3474841D1 (en) * 1983-06-24 1988-12-01 American Cyanamid Co Electrodes, electro-chemical cells containing said electrodes, and process for forming and utilizing such electrodes

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3669865A (en) * 1966-01-03 1972-06-13 Honeywell Inc Apparatus for uniformly plating a continuous cylindrical substrate

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3669865A (en) * 1966-01-03 1972-06-13 Honeywell Inc Apparatus for uniformly plating a continuous cylindrical substrate

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US4162952A (en) * 1977-02-24 1979-07-31 Societe Anonyme dite: F.M.C. Apparatus for electrolysis by projection
US4130465A (en) * 1977-03-30 1978-12-19 Japan Exlan Company Limited Treatment of carbon fibers
US4169780A (en) * 1977-05-24 1979-10-02 Societe Les Piles Wonder Process and apparatus for making negative electrodes, in particular in cadmium or zinc, for electrochemical generators, and the negative electrodes thus obtained
US4128459A (en) * 1977-11-25 1978-12-05 Allied Chemical Corporation Continuous electroplating of alloy onto metallic strip
US4448655A (en) * 1981-11-17 1984-05-15 Inoue-Japax Research Incorporated Traveling-wire electroerosion machining electrode and method
US4852453A (en) * 1982-03-16 1989-08-01 American Cyanamid Company Chaff comprising metal coated fibers
US4909910A (en) * 1982-03-16 1990-03-20 American Cyanamid Yarns and tows comprising high strength metal coated fibers, process for their production, and articles made therefrom
US4609449A (en) * 1982-03-16 1986-09-02 American Cyanamid Company Apparatus for the production of continuous yarns or tows comprising high strength metal coated fibers
US4661403A (en) * 1982-03-16 1987-04-28 American Cyanamid Company Yarns and tows comprising high strength metal coated fibers, process for their production, and articles made therefrom
US4904351A (en) * 1982-03-16 1990-02-27 American Cyanamid Company Process for continuously plating fiber
US4468294A (en) * 1983-05-19 1984-08-28 Honeywell Inc. Acoustic desensitization of optical fibers by means of nickel jackets
EP0137912A1 (en) * 1983-06-24 1985-04-24 American Cyanamid Company Apparatus and process for continuously plating fiber
US4686013A (en) * 1986-03-14 1987-08-11 Gates Energy Products, Inc. Electrode for a rechargeable electrochemical cell and method and apparatus for making same
USRE34651E (en) * 1988-02-19 1994-06-28 Minnesota Mining And Manufacturing Company Sheet-member containing a plurality of elongated enclosed electrodeposited channels and method
US5070606A (en) * 1988-07-25 1991-12-10 Minnesota Mining And Manufacturing Company Method for producing a sheet member containing at least one enclosed channel
US5078840A (en) * 1989-07-20 1992-01-07 Toho Rayon Co., Ltd. Process for the surface treatment of carbon fiber strands
US5595640A (en) * 1994-08-29 1997-01-21 Metallglanz Gesellschaft Fuer Entgratung Und Oberflaechentechnik Mbh Method and apparatus for continuous galvanic application of metallic layers on a body
US20080280045A1 (en) * 2003-12-08 2008-11-13 Jar-Wha Lee Method and apparatus for the treatment of individual filaments of a multifilament yarn
US8137752B2 (en) 2003-12-08 2012-03-20 Syscom Advanced Materials, Inc. Method and apparatus for the treatment of individual filaments of a multifilament yarn
US20100072071A1 (en) * 2008-09-19 2010-03-25 Metokote Corporation Systems and methods for electrocoating a part
US8524065B2 (en) * 2008-09-19 2013-09-03 Metokote Corporation Systems and methods for electrocoating a part
US9324472B2 (en) 2010-12-29 2016-04-26 Syscom Advanced Materials, Inc. Metal and metallized fiber hybrid wire
US20140057127A1 (en) * 2012-08-22 2014-02-27 Infineon Technologies Ag Method for processing at least one carbon fiber, method for fabricating a carbon copper composite, and carbon copper composite
CN118173330A (zh) * 2024-05-14 2024-06-11 山东无棣海丰电缆有限公司 一种海洋电缆加工用防腐蚀处理装置

Also Published As

Publication number Publication date
NO133410C (da) 1976-04-28
NL7213630A (da) 1973-04-18
DK141970B (da) 1980-07-28
BE790167A (fr) 1973-02-15
JPS4847437A (da) 1973-07-05
NO133410B (da) 1976-01-19
FI53988C (fi) 1978-09-11
DE2151618C3 (de) 1975-05-28
DE2151618A1 (de) 1973-04-26
GB1410028A (en) 1975-10-15
AT316249B (de) 1974-06-25
FR2156258B3 (da) 1975-10-31
FI53988B (fi) 1978-05-31
DK141970C (da) 1980-12-08
FR2156258A1 (da) 1973-05-25
CH584766A5 (da) 1977-02-15
IT967931B (it) 1974-03-11
DE2151618B2 (de) 1974-09-05
DD100285A5 (da) 1973-09-12

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