GB642101A - Improvements in or relating to electroplating - Google Patents

Improvements in or relating to electroplating

Info

Publication number
GB642101A
GB642101A GB13708/48A GB1370848A GB642101A GB 642101 A GB642101 A GB 642101A GB 13708/48 A GB13708/48 A GB 13708/48A GB 1370848 A GB1370848 A GB 1370848A GB 642101 A GB642101 A GB 642101A
Authority
GB
United Kingdom
Prior art keywords
nickel
cobalt
period
sulphate
anodic
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
GB13708/48A
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.)
Westinghouse Electric International Co
Original Assignee
Westinghouse Electric International Co
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 Westinghouse Electric International Co filed Critical Westinghouse Electric International Co
Publication of GB642101A publication Critical patent/GB642101A/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
    • C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/18—Electroplating using modulated, pulsed or reversing current
    • 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
    • C25D5/605—Surface topography of the layers, e.g. rough, dendritic or nodular layers
    • C25D5/611—Smooth layers
    • 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
    • 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
    • C25D5/627—Electroplating characterised by the visual appearance of the layers, e.g. colour, brightness or mat appearance

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electroplating And Plating Baths Therefor (AREA)
  • Electroplating Methods And Accessories (AREA)

Abstract

642,101. Electrodeposition of nickel, cobalt and nickel-cobalt alloys. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. May 20, 1948, No. 13708. Convention date, July 9, 1947. Drawings to Specification. [Class 41] A process of electro-depositing nickel, cobalt, or nickel-cobalt alloys on a member comprises applying a periodically-reversed electric current consisting of successive cycles, of which each cycle renders the member cathodic for a period of time of less than 2 seconds, to electrodeposit an increment of metal, and then renders the member anodic for a period of time from ¢ to <SP>1</SP>/ 25 of the cathodic period, to remove a substantial portion of the previously-deposited increment, the anodic period being at least .002 seconds. The current density during the anodic period and the duration thereof may be adjusted to apply from 4 to 60 per cent of the coulombs applied during the preceding cathodic period. In the case of nickel or cobalt plating the electrolyte may contain the sulphate or the chloride of the metal. In an example a bath for use in nickel-cobalt alloy plating, the electrolyte contains nickel sulphate, cobalt sulphate, boric acid, and the addition agents ammonium sulphate, formaldehyde and nickel-formate. Other addition agents suitable for'the process of the invention are naphthalene-1,5-disulphonic acid, sodium sulphate, sodium lauryl sulphate, ammonium chloride, gum arabic, and gum tragacanth. Specification 630,165 is referred to.
GB13708/48A 1947-07-09 1948-05-20 Improvements in or relating to electroplating Expired GB642101A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US759796A US2470775A (en) 1947-07-09 1947-07-09 Electroplating nickel and cobalt with periodic reverse current

Publications (1)

Publication Number Publication Date
GB642101A true GB642101A (en) 1950-08-30

Family

ID=25056987

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13708/48A Expired GB642101A (en) 1947-07-09 1948-05-20 Improvements in or relating to electroplating

Country Status (6)

Country Link
US (1) US2470775A (en)
CH (1) CH274247A (en)
DE (1) DE809002C (en)
FR (1) FR968931A (en)
GB (1) GB642101A (en)
NL (1) NL72938C (en)

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2635075A (en) * 1948-02-28 1953-04-14 Knapp Monarch Co Plating process
NL71231C (en) * 1948-04-22
US2579636A (en) * 1948-08-27 1951-12-25 Weisberg Louis Electrodeposition of nickel
US2678909A (en) * 1949-11-05 1954-05-18 Westinghouse Electric Corp Process of electrodeposition of metals by periodic reverse current
US2726201A (en) * 1950-08-02 1955-12-06 Int Nickel Co Anodic pickling and nickel plating of tank interior using single electrolyte
US2798036A (en) * 1954-07-12 1957-07-02 Joseph J Utz Electroplating of beryllium
US2989446A (en) * 1956-10-29 1961-06-20 Rockwell Standard Co Electroplating
US3093557A (en) * 1961-08-25 1963-06-11 Westinghouse Electric Corp Methods and electrolytes for depositing nickel and cobalt
US3349016A (en) * 1965-01-12 1967-10-24 Int Nickel Co Process for employing an auxiliary anode made of high purity nickel
US5213907A (en) * 1990-10-09 1993-05-25 Diamond Technologies Company Nickel-cobalt-boron-alloy deposited on a substrate
JPH06176926A (en) * 1992-12-02 1994-06-24 Matsushita Electric Ind Co Ltd Composition modulated soft magnetic film and manufacture thereof
DK172937B1 (en) * 1995-06-21 1999-10-11 Peter Torben Tang Galvanic process for forming coatings of nickel, cobalt, nickel alloys or cobalt alloys
US6183546B1 (en) 1998-11-02 2001-02-06 Mccomas Industries International Coating compositions containing nickel and boron
DE10061186C1 (en) 2000-12-07 2002-01-17 Astrium Gmbh Electroplating of nickel, cobalt, and their alloys onto rocket engine components, uses differing current densities and pulsed charge ratios at anode and cathode
US6724067B2 (en) 2001-04-13 2004-04-20 Anadigics, Inc. Low stress thermal and electrical interconnects for heterojunction bipolar transistors
ES2422455T3 (en) 2005-08-12 2013-09-11 Modumetal Llc Compositionally modulated composite materials and methods for manufacturing them
EP2310557A2 (en) 2008-07-07 2011-04-20 Modumetal, LLC Property modulated materials and methods of making the same
EA201792049A1 (en) 2009-06-08 2018-05-31 Модьюметал, Инк. ELECTRICALLY DESIGNED NANOLAMINATE COATINGS AND SHELLS FOR PROTECTION AGAINST CORROSION
EP2596150B1 (en) 2010-07-22 2020-06-17 Modumetal, Inc. Material and process for electrochemical deposition of nanolaminated brass alloys
KR101199004B1 (en) * 2011-01-06 2012-11-07 성균관대학교산학협력단 Nano Porous Electrode for Super Capacitor and Method for Preparing the Same
MX341038B (en) * 2011-04-28 2016-08-04 Mam Tecnología Anticorrosivas S A P I De C V Improved process for epitaxially depositing a ternary alloy on a metallic substrate, and product of said process.
EA201500949A1 (en) 2013-03-15 2016-02-29 Модьюметл, Инк. METHOD OF FORMING A MULTILAYER COATING, A COATING FORMED BY THE ABOVE METHOD, AND A MULTILAYER COATING
CN110273167A (en) 2013-03-15 2019-09-24 莫杜美拓有限公司 Pass through the composition and nanometer layer pressing gold of the electro-deposition of the product of addition manufacturing process preparation
WO2014146117A2 (en) 2013-03-15 2014-09-18 Modumetal, Inc. A method and apparatus for continuously applying nanolaminate metal coatings
WO2014146114A1 (en) 2013-03-15 2014-09-18 Modumetal, Inc. Nanolaminate coatings
AR102068A1 (en) 2014-09-18 2017-02-01 Modumetal Inc METHODS OF PREPARATION OF ITEMS BY ELECTRODEPOSITION AND ADDITIVE MANUFACTURING PROCESSES
CN106795645B (en) 2014-09-18 2020-03-27 莫杜美拓有限公司 Method and apparatus for continuous application of nanolaminate metal coatings
EA201990655A1 (en) 2016-09-08 2019-09-30 Модьюметал, Инк. METHODS FOR PRODUCING MULTI-LAYER COATINGS ON BILLETS AND THE PRODUCTS EXECUTED BY THEM
JP7051823B2 (en) 2016-09-14 2022-04-11 モジュメタル インコーポレイテッド A system for high-reliability, high-throughput complex electric field generation, and methods for thereby forming a film.
EP3535118A1 (en) 2016-11-02 2019-09-11 Modumetal, Inc. Topology optimized high interface packing structures
EP3601641A1 (en) 2017-03-24 2020-02-05 Modumetal, Inc. Lift plungers with electrodeposited coatings, and systems and methods for producing the same
CN110770372B (en) 2017-04-21 2022-10-11 莫杜美拓有限公司 Tubular article having an electrodeposited coating and system and method for producing same
WO2019210264A1 (en) 2018-04-27 2019-10-31 Modumetal, Inc. Apparatuses, systems, and methods for producing a plurality of articles with nanolaminated coatings using rotation

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1260661A (en) * 1917-09-04 1918-03-26 British America Nickel Corp Ltd Method of recovering metals from alloys.
US1574055A (en) * 1920-05-15 1926-02-23 Madsenell Corp Fabrication of metal sheets by electrodeposition
US1534709A (en) * 1924-05-17 1925-04-21 Francis A Holt Method of conducting electrolytic operations
CH161317A (en) * 1932-05-09 1933-04-30 Winkler Julius Jr Process for the production of galvanic deposits.

Also Published As

Publication number Publication date
NL72938C (en)
CH274247A (en) 1951-03-31
DE809002C (en) 1951-07-23
FR968931A (en) 1950-12-08
US2470775A (en) 1949-05-24

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