GB1331086A - Method of and apparatus for the multiplication of the effective - Google Patents

Method of and apparatus for the multiplication of the effective

Info

Publication number
GB1331086A
GB1331086A GB4835770A GB4835770A GB1331086A GB 1331086 A GB1331086 A GB 1331086A GB 4835770 A GB4835770 A GB 4835770A GB 4835770 A GB4835770 A GB 4835770A GB 1331086 A GB1331086 A GB 1331086A
Authority
GB
United Kingdom
Prior art keywords
current
plating
substrate
band
oct
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
GB4835770A
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.)
CENTER OF SCIENT APPLIED RESEA
REA OF METAL SURFACES BY ELECT
Original Assignee
CENTER OF SCIENT APPLIED RESEA
REA OF METAL SURFACES BY ELECT
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 CENTER OF SCIENT APPLIED RESEA, REA OF METAL SURFACES BY ELECT filed Critical CENTER OF SCIENT APPLIED RESEA
Publication of GB1331086A publication Critical patent/GB1331086A/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
    • C25D17/002—Cell separation, e.g. membranes, diaphragms
    • 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
    • C25D5/60—Electroplating characterised by the structure or texture of the layers
    • C25D5/623—Porosity of the layers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S204/00—Chemistry: electrical and wave energy
    • Y10S204/07—Current distribution within the bath

Abstract

1331086 Electro-plating CENTER OF SCIENTIFIC & APPLIED RESEARCH Ltd 12 Oct 1970 [13 Oct 1969] 48357/70 Heading C7B A porous metallic coating is formed on a metallic substrate to multiply its effective surface area by electroplating in which plating current is passed successively to small areas of the substrate at densities of at least 80A/cm<SP>2</SP> of the exposed substrate surface. The current may be passed as pulses e.g. at a frequency of 3 C/D and a pulse duration of 40ms for a C.D. of 100A/cm<SP>2</SP>. The plating bath 1 may be divided into two compartments by an insulating partition e.g. diaphragm 2 provided with an opening or slit 5 to expose successively only a small part of the surface of the moving substrate e.g. band 4 on one side of the partition to the plating current from the anode 3 on the other. Preferably the slit extends across the width of the band, being of reduced width at its ends adjacent the band edges. Wire may be plated using pulsed current by passing it through a small diameter glass V-tube inside another V-tube provided with an annular opening.
GB4835770A 1969-10-13 1970-10-12 Method of and apparatus for the multiplication of the effective Expired GB1331086A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GR690038564 1969-10-13
GR690025508 1969-10-13

Publications (1)

Publication Number Publication Date
GB1331086A true GB1331086A (en) 1973-09-19

Family

ID=26316320

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4835770A Expired GB1331086A (en) 1969-10-13 1970-10-12 Method of and apparatus for the multiplication of the effective

Country Status (2)

Country Link
US (1) US3692639A (en)
GB (1) GB1331086A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0704558A1 (en) * 1994-09-29 1996-04-03 Sollac S.A. Cell for continuous electrodeposition of metal alloys

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4033833A (en) * 1975-10-30 1977-07-05 Western Electric Company, Inc. Method of selectively electroplating an area of a surface
CS220036B1 (en) * 1981-06-29 1983-03-25 Vaclav Novak Terminal of scanner of the coulometric meter of the coatings thickness
US5096550A (en) * 1990-10-15 1992-03-17 The United States Of America As Represented By The United States Department Of Energy Method and apparatus for spatially uniform electropolishing and electrolytic etching
US5332487A (en) * 1993-04-22 1994-07-26 Digital Equipment Corporation Method and plating apparatus
US5771577A (en) * 1996-05-17 1998-06-30 General Electric Company Method for making a fluid cooled article with protective coating
US5985123A (en) * 1997-07-09 1999-11-16 Koon; Kam Kwan Continuous vertical plating system and method of plating
US6848975B2 (en) * 2002-04-09 2005-02-01 Rensselaer Polytechnic Institute Electrochemical planarization of metal feature surfaces

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0704558A1 (en) * 1994-09-29 1996-04-03 Sollac S.A. Cell for continuous electrodeposition of metal alloys
FR2725215A1 (en) * 1994-09-29 1996-04-05 Lorraine Laminage CONTINUOUS ELECTRODEPOSITION CELL FOR METAL ALLOYS
US5582708A (en) * 1994-09-29 1996-12-10 Sollac Cell and process for continuously electroplating metal alloys

Also Published As

Publication number Publication date
US3692639A (en) 1972-09-19

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee