ES320101A1 - Method and apparatus for electroplating rollable objects - Google Patents

Method and apparatus for electroplating rollable objects

Info

Publication number
ES320101A1
ES320101A1 ES0320101A ES320101A ES320101A1 ES 320101 A1 ES320101 A1 ES 320101A1 ES 0320101 A ES0320101 A ES 0320101A ES 320101 A ES320101 A ES 320101A ES 320101 A1 ES320101 A1 ES 320101A1
Authority
ES
Spain
Prior art keywords
tank
magnetic field
articles
wall
ferromagnetic
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
ES0320101A
Other languages
Spanish (es)
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of ES320101A1 publication Critical patent/ES320101A1/en
Expired legal-status Critical Current

Links

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
    • C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
    • C25D17/02—Tanks; Installations therefor
    • 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
    • C25D17/16—Apparatus for electrolytic coating of small objects in bulk
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/007—Electroplating using magnetic fields, e.g. magnets

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)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

A method of electroplating ferromagnetic articles comprises inducing a moving magnetic field in a tank containing electrolyte such that articles therein are positioned on the inner surface of the tank, the inner surface of the tank being at least partially electrically conductive and preferably substantially non-ferromagnetic, and being connected to a source of electrical current. The tank may be cylindrical, and the magnetic field may be a rotating magnetic field, e.g. formed by means of a multiphase, multicoil electrical circuit. The embodiment shown, comprises a cylindrical tank 1, the inner surface 7 thereof forming the cathode a centrally positioned anode 5 and surrounding the tank, three pairs of coils 17', 17" 23', 23" 29', 29" connected to sources of alternating voltage 19, 25, 31 respectively, having a difference of 120 in phase from one another, thus forming a rotating magnetic field. Articles 40, within the tank will, when the magnetic field is switched on, move towards the tank wall and be raised to a position where the magnetic field is a maximum, thereby making electrical contact with the wall, and then slowly roll around the tank whilst maintaining contact with the tank wall. The tank has a perforated base and is placed within a larger tank 15 containing electrolyte which is circulated between the two tanks by means of pump 13.<PICT:1051702/C6-C7/1> A method of electroplating ferromagnetic articles comprises inducing a moving magnetic field in a tank containing electrolyte such that articles therein are positioned on the inner surface of the tank, the inner surface of the tank being at least partially electrically conductive and preferably substantially non-ferromagnetic, and being connected to a source of electrical current. The tank may be cylindrical, and the magnetic field may be a rotating magnetic field, e.g. formed by means of a multiphase, multicoil electrical circuit. The embodiment shown, comprises a cylindrical tank 1, the inner surface 7 thereof forming the cathode a centrally positioned anode 5 and surrounding the tank, three pairs of coils 17', 17" 23', 23" 29', 29" connected to sources of alternating voltage 19, 25, 31 respectively, having a difference of 120 DEG in phase from one another, thus forming a rotating magnetic field. Articles 40, within the tank will, when the magnetic field is switched on, move towards the tank wall and be raised to a position where the magnetic field is a maximum, thereby making electrical contact with the wall, and then slowly roll around the tank whilst maintaining contact with the tank wall. The tank has a perforated base and is placed within a larger tank 15 containing electrolyte which is circulated between the two tanks by means of pump 13.
ES0320101A 1964-11-27 1965-11-27 Method and apparatus for electroplating rollable objects Expired ES320101A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US414310A US3386895A (en) 1964-11-27 1964-11-27 Method and apparatus for electroplating rollable objects

Publications (1)

Publication Number Publication Date
ES320101A1 true ES320101A1 (en) 1966-05-16

Family

ID=23640907

Family Applications (2)

Application Number Title Priority Date Filing Date
ES0320015A Expired ES320015A1 (en) 1964-11-27 1965-11-26 A procedure to give galvanic coatings. (Machine-translation by Google Translate, not legally binding)
ES0320101A Expired ES320101A1 (en) 1964-11-27 1965-11-27 Method and apparatus for electroplating rollable objects

Family Applications Before (1)

Application Number Title Priority Date Filing Date
ES0320015A Expired ES320015A1 (en) 1964-11-27 1965-11-26 A procedure to give galvanic coatings. (Machine-translation by Google Translate, not legally binding)

Country Status (8)

Country Link
US (1) US3386895A (en)
BE (1) BE672945A (en)
CH (1) CH428370A (en)
DE (1) DE1496845A1 (en)
ES (2) ES320015A1 (en)
FR (1) FR1453761A (en)
GB (1) GB1051702A (en)
NL (1) NL6514442A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050258044A1 (en) * 2004-05-21 2005-11-24 Berman Michael J Magnetic focus rings for improved copper plating
US7964081B2 (en) * 2007-08-24 2011-06-21 International Business Machines Corporation Enhanced magnetic plating method
JP5155755B2 (en) * 2008-07-10 2013-03-06 株式会社荏原製作所 Magnetic film plating apparatus and plating equipment

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1420127A (en) * 1919-01-08 1922-06-20 Arthur J Moxham Process of treating ore to produce pure iron
US1658872A (en) * 1925-01-16 1928-02-14 Henry J Yeager Electrolytic apparatus
US2397177A (en) * 1940-08-01 1946-03-26 Richard M Wick Apparatus for electroplating ball bearings
US2485628A (en) * 1947-08-09 1949-10-25 Wayne J Morrill Induction motor primary construction

Also Published As

Publication number Publication date
GB1051702A (en)
BE672945A (en) 1966-03-16
NL6514442A (en) 1966-05-31
FR1453761A (en) 1966-06-03
DE1496845A1 (en) 1969-08-14
CH428370A (en) 1967-01-15
ES320015A1 (en) 1966-05-01
US3386895A (en) 1968-06-04

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