US3919069A - Means for plating stranded cables - Google Patents

Means for plating stranded cables Download PDF

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Publication number
US3919069A
US3919069A US280833A US28083372A US3919069A US 3919069 A US3919069 A US 3919069A US 280833 A US280833 A US 280833A US 28083372 A US28083372 A US 28083372A US 3919069 A US3919069 A US 3919069A
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US
United States
Prior art keywords
bath
roller
vessel
cable
level
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Expired - Lifetime
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US280833A
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English (en)
Inventor
Dieter Ascher
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.)
Karl Neumayer Fa GmbH
Karl Neumayer Firma GmbH
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Karl Neumayer Fa GmbH
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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

  • My present invention relates to a method of and an apparatus for plating a stranded flexible element, such as a tape or a cable, for the purpose of imparting certain desirable surface characteristics (e.g. corrosion resistance, improved electrical conductivity, or solderability) to the metallic strands thereof.
  • a stranded flexible element such as a tape or a cable
  • the object of my present invention is to provide an improved system for solving this problem in the plating of stranded elements.
  • An apparatus designed to guide the cable in this manner comprises one or more upper rollers above the bath level, driven by a common motor, and a corresponding number of nondriven lower rollers submerged in substantial vertical alignment with respective upper rollers, the cable passing in a multiplicity of successive loops around the two rollers of each pair.
  • Positive guidance for the cable may be provided by peripherally grooving each roller, the submerged roller advantageously consisting of a multiplicity of juxtaposed sheaves idling on a common shaft.
  • the inner radius of the grooves of at least one set decreases progressively in the direction of successive engagement by the cable; the decrease from one groove to the next should be at least 2 equal to the thickness of the layer deposited on the cable during the preceding immersion.
  • the cable For electrochemical deposition. the cable must be cathodically connected in an electric circuit also including an anode immersed in the bath. To insure the safety of the operating personnel during the initial looping of the cable around the rollers, these rollers are advantageously carried on an elevatable mounting allowing the lower roller or rollers to be lifted out of the bath with simultaneous disconnection ofthe cable from its current supply.
  • the multiple winding of the cable around the driven upper roller insures that the cable will be entrained even if friction between it and the roller surface is low, i.e., if the cable is under very low tension.
  • the relative mobility of the several sheaves of the lower roller prevents the development of local stresses during the treatment.
  • Tin. silver and other metals can be deposited on the stranded cable in this manner.
  • the strands may be copper filaments ranging between 0.05 and 0.03 mm in thickness; thus. for example, I8 strands of 0.l mm thickness or 26 strands of 0.2 mm thickness could be twisted together to form a thinner or a heavier cable.
  • the strands could also be wound around a nonconductive core. e.g. of synthetic resin.
  • the strands may consist of such less electrically conductive metals as aluminum or iron to be subjected, for example, to a galvanizing (zinc-plating) treatment. Stranded elements so treated may also be used as conductive sheaths for insulated conductors, e.g. in coaxial cables. antenna leads, waveguides and the like.
  • FIG. 1 is a somewhat diagrammatic cross-sectional view, taken on the line l] of FIG. 1, of an apparatus for electroplating a stranded cable in accordance with this invention
  • FIG. 2 is a cross-sectional view taken on the line llll of FIG. 1;
  • FIG. 3 is a top plan view of the apparatus shown in FIGS. l and 2;
  • FIG. 4 is a perspective view of a length of cable to be treated by the apparatus of FIGS. 1-3;
  • FIG. 5 is a view similar to FIG. 4, showing a modified cable
  • FIG. 6 is a diagrammatic cross-sectional view of another apparatus for carrying out the process according to my invention.
  • FIGS. 1-3 I have shown an apparatus for electroplating a cable 9 consisting of twisted metallic strands 31 (e.g. of 0.] mm diameter) as illustrated in FIG. 4.
  • the apparatus comprises a series of upwardly open receptacles 18 (for a degreasing solution), 19 (for a rinsing liquid), 20 (for an electroplating bath) and 21 (for another rinse).
  • Each of these four treatment stages comprises at least one upper roller 2, 2a, 2b, 2c. 2d (the two rollers 2b and 2c lying above the plating bath 1 in tank 20), disposed horizontally above the respective receptacle, and a corresponding number of lower rollers vertically aligned with the respective upper rollers.
  • FIGS. 1 and 2 One such lower roller, associated with upper roller 2b. has been shown at I] in FIGS. 1 and 2. It comprises a multiplicity of sheaves l3 idling on a shaft 25 which is rotated by a drive motor 10 through the intermediary of a transmission 5. This motor also drives the several 3 upper rollers through respective speed reducers. some of which have been shown at 6, 6b. and 6t; shaft 25 up crates a propeller l which serves to agitate the plating bath l and which could also be duplicated on the nonillustratcd lower rollers associated with upper rollers 2, 2a, 21' and 2d.
  • Sheaves 13 have peripheral grooves l4 which are substantially in line with similar annulargrooves l2 on upper roller 2b; the grooves 12 and 14 form guide channels for the cable 9 which is led around the rollers in a multiplicity of downwardly elongated loops as best seen in FIG. 2.
  • Shaft 25. a drive shaft 26 for roller 2b and similar drive shafts for all the other rollers are journaled in an elevatable structure which includes a hollow beam 17 with depending tubular arms 22. the latter accommodating the transmission elcments for the lower rollers.
  • Arm 22 also supports a frame 27 with horizontal rods 27. 27 which spread the loops sideways to keep them from assuming a concave shape as illustrated in dot-dash lines in FIG.
  • Rods 27 and 27 may be provided with eyes of rubber or the like serving to wipe adherent liquid from the cable.
  • oncoming cable 9 is first received in the outermost groove 12 at the free end of that roller and then progressively moves inward; in the case of roller 20 the movement is reversed.
  • the reduction in diameter from one groove to the next may amount. for example. to 0.03 mm.
  • the mounting structure 17, 22 is supported on a vertical hydraulic jack l6 enabling the lifting of the lower rollers above the liquid level in their respective treat ment tanks.
  • a conductive connection extending from the metallic upper roller 2h through its shaft 26 to a source of positive voltage(+) is broken by the disengagement of a collar 28 on the shaft from a brush 23 whose base rests on a stationary bracket 24 secured to tank 20.
  • the cable is disconnected from high voltage at the time of such elevation and can be safely threaded onto or removed from the rollers.
  • rollers 20 and 2d above the rinsing compartments are axially narrower than rollers 2, 2b and 2c; otherwise, their construction as well as that of the associated lower rollers may be the same as that of rollers 2b and ll described in detail above. except for the absence of a taper.
  • FIG. 5 l have shown a modified cable 9 wherein the strands 3] form a sheath above a central conductor 29 with interposition ofinsulation 30.
  • the strands here are interwoven. rather than twisted as in cable 9.
  • FIG. 6 shows a vessel 120 wherein a cable 9 is guided over upper rollers 102. 102a and lower rollers Ill,
  • roller I03 has an eccentric profile so that the cable 9 is alternately slackcned and stressed. This action. too. causes a limited relative motion of the strands in the electroplating bath 101. It will be understood that in this case. likewise. the high-voltage connection to the workpiece 9 may be automatically interrupted upon a lifting ofthe rollers 11]. lllu out ofthe bath.
  • An apparatus for plating a stranded flexible element comprising a vessel adapted to contain a plating bath up to a predetermined level.
  • upper roller means above said level in said vessel provided with a first set of axially spaced peripheral annular groves
  • lower rol ler means below said level in said vessel provided with a second set of axially spaced annular grooves substantially aligned with the grooves of said first set for guiding an element to be plated in a multiplicity of parallel.
  • An apparatus for plating a stranded flexible element comprising a vessel adapted to contain a plating bath up to a predetermined level, a roller above said level in said vessel provided with a first set of axially spaced peripheral annular grooves. a shaft in said vessel carrying a multiplicity ofjuxtaposed and independently rotatable sheaves idling thereon below said level. said sheaves being provided with a second set of peripheral annular grooves substantially aligned with the grooves of said first set for guiding an element to be plated in a multiplicity of parallel. slack loops into and out of the bath, and drive means coupled with said roller for advancing said element through said vessel.

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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)
US280833A 1971-08-16 1972-08-15 Means for plating stranded cables Expired - Lifetime US3919069A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT715171A AT312075B (de) 1971-08-16 1971-08-16 Verfahren und Vorrichtung zur Herstellung einer Litze aus Metalldrähten, wobei die Drähte mit einer galvanisch aufgebrachten Oberflächenbeschichtung eines anderen Metalles versehen sind

Publications (1)

Publication Number Publication Date
US3919069A true US3919069A (en) 1975-11-11

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US280833A Expired - Lifetime US3919069A (en) 1971-08-16 1972-08-15 Means for plating stranded cables

Country Status (12)

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US (1) US3919069A (de)
JP (1) JPS4834734A (de)
AT (1) AT312075B (de)
BE (1) BE787590A (de)
CA (1) CA992490A (de)
CH (1) CH554944A (de)
DE (1) DE2239547C3 (de)
FR (1) FR2150117A5 (de)
GB (1) GB1368182A (de)
IT (1) IT962091B (de)
NL (1) NL7211162A (de)
SE (1) SE396415B (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US4905626A (en) * 1987-08-21 1990-03-06 Mag Maschinen Und Apparatebau Gesellschaft M.B.H. Wire intake device for a wire enameling machine
US20040013812A1 (en) * 2000-06-29 2004-01-22 Wolfgang Kollmann Method for producing cathodes and anodes for electrochemical systems, metallised material used therein, method and device for production of said metallised material
US20080280045A1 (en) * 2003-12-08 2008-11-13 Jar-Wha Lee Method and apparatus for the treatment of individual filaments of a multifilament yarn
EP2179425A1 (de) 2007-07-16 2010-04-28 Micrometal Technologies Inc. Aus metallisiertem rostfreistahl-einfasergarn zusammengesetztes elektrisches abschirmmaterial
US9324472B2 (en) 2010-12-29 2016-04-26 Syscom Advanced Materials, Inc. Metal and metallized fiber hybrid wire
CN105671610A (zh) * 2016-03-21 2016-06-15 昆明理工大学 一种带有引导轮的电镀装置

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4128530A (en) * 1974-01-25 1978-12-05 The Goodyear Tire & Rubber Company Mercapto phenolic and alkylthio phenolic antioxidants
JPS6044764B2 (ja) * 1978-11-09 1985-10-05 株式会社フジクラ ケ−ブル導体製造方法
JPS63235498A (ja) * 1987-03-23 1988-09-30 Nakagawa Kk 長尺鎖メツキ用引掛け装置
JP6177394B1 (ja) * 2016-07-21 2017-08-09 東日京三電線株式会社 導体製造方法および導体
CN113652731B (zh) * 2021-08-20 2022-07-29 四川威纳尔特种电子材料有限公司 金属丝的导电导轮装置及电镀生产线

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1745285A (en) * 1928-02-17 1930-01-28 Edwin J Whiffen Apparatus for impregnating stranded elements
US1886277A (en) * 1929-04-26 1932-11-01 Winkler Alfred Method and apparatus for galvanizing fancy chains and the like
US2426493A (en) * 1945-04-28 1947-08-26 Jensen Specialties Inc Apparatus for processing rope
US3338738A (en) * 1963-08-06 1967-08-29 Hooker Chemical Corp Method and apparatus for applying a halogenatedhydrocarbon solventcontaining enamel to wire

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1745285A (en) * 1928-02-17 1930-01-28 Edwin J Whiffen Apparatus for impregnating stranded elements
US1886277A (en) * 1929-04-26 1932-11-01 Winkler Alfred Method and apparatus for galvanizing fancy chains and the like
US2426493A (en) * 1945-04-28 1947-08-26 Jensen Specialties Inc Apparatus for processing rope
US3338738A (en) * 1963-08-06 1967-08-29 Hooker Chemical Corp Method and apparatus for applying a halogenatedhydrocarbon solventcontaining enamel to wire

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US4905626A (en) * 1987-08-21 1990-03-06 Mag Maschinen Und Apparatebau Gesellschaft M.B.H. Wire intake device for a wire enameling machine
US20040013812A1 (en) * 2000-06-29 2004-01-22 Wolfgang Kollmann Method for producing cathodes and anodes for electrochemical systems, metallised material used therein, method and device for production of said metallised material
US7344776B2 (en) 2000-06-29 2008-03-18 Wolfgang Kollmann Method for producing cathodes and anodes for electrochemical systems, metallised material used therein, method and device for production of said metallised material
US20080261096A1 (en) * 2000-06-29 2008-10-23 Wolfgang Kollmann Method For Producing Cathodes and Anodes for Electrochemical Systems, Metallised Material Used Therein, Method and Device For Production of Said Metallised Material
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
EP2179425A1 (de) 2007-07-16 2010-04-28 Micrometal Technologies Inc. Aus metallisiertem rostfreistahl-einfasergarn zusammengesetztes elektrisches abschirmmaterial
US10314215B2 (en) * 2007-07-16 2019-06-04 Micrometal Technologies, Inc. Electrical shielding material composed of metallized stainless steel monofilament yarn
US9324472B2 (en) 2010-12-29 2016-04-26 Syscom Advanced Materials, Inc. Metal and metallized fiber hybrid wire
CN105671610A (zh) * 2016-03-21 2016-06-15 昆明理工大学 一种带有引导轮的电镀装置
CN105671610B (zh) * 2016-03-21 2017-12-19 昆明理工大学 一种带有引导轮的电镀装置

Also Published As

Publication number Publication date
DE2239547A1 (de) 1973-02-22
SE396415B (sv) 1977-09-19
CA992490A (en) 1976-07-06
BE787590A (fr) 1972-12-18
NL7211162A (de) 1973-02-20
GB1368182A (en) 1974-09-25
AT312075B (de) 1973-12-10
FR2150117A5 (de) 1973-03-30
CH554944A (de) 1974-10-15
JPS4834734A (de) 1973-05-22
IT962091B (it) 1973-12-20
DE2239547B2 (de) 1978-08-31
DE2239547C3 (de) 1979-04-26

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