WO2003066936A3 - Commercial process for electroplating nickel-phosphorus coatings - Google Patents

Commercial process for electroplating nickel-phosphorus coatings Download PDF

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Publication number
WO2003066936A3
WO2003066936A3 PCT/IB2003/000982 IB0300982W WO03066936A3 WO 2003066936 A3 WO2003066936 A3 WO 2003066936A3 IB 0300982 W IB0300982 W IB 0300982W WO 03066936 A3 WO03066936 A3 WO 03066936A3
Authority
WO
WIPO (PCT)
Prior art keywords
bath
nickel
chloride
commercial process
electroplating nickel
Prior art date
Application number
PCT/IB2003/000982
Other languages
French (fr)
Other versions
WO2003066936A2 (en
WO2003066936B1 (en
Inventor
Liqun Feng
Original Assignee
Liqun Feng
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 Liqun Feng filed Critical Liqun Feng
Priority to AU2003209584A priority Critical patent/AU2003209584A1/en
Publication of WO2003066936A2 publication Critical patent/WO2003066936A2/en
Publication of WO2003066936A3 publication Critical patent/WO2003066936A3/en
Publication of WO2003066936B1 publication Critical patent/WO2003066936B1/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D3/00—Electroplating: Baths therefor
    • C25D3/02—Electroplating: Baths therefor from solutions
    • C25D3/56—Electroplating: Baths therefor from solutions of alloys
    • C25D3/562—Electroplating: Baths therefor from solutions of alloys containing more than 50% by weight of iron or nickel or cobalt

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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 And Plating Baths Therefor (AREA)
  • Chemically Coating (AREA)

Abstract

An aqueous bath for electroplating NiP coatings comprising, generally, a solution containing nickel salts, either a mixture of nickel sulfate and nickel chloride or an all nickel chloride source, sodium hypophosphite and boric acid. Thiourea is added to an all chloride bath solution for decorative applications or other applications requiring enhanced brightness. Upon dissolution of the bath constituents, the bath pH is adjusted up to a value of 3.5 to 4.5 with sodium hydroxide and maintained for at least 15 minutes at or above room temperature, preferably in the range of 40° to 50°C, which prevents the oxidation of the hypophosphite anions. The bath pH is then reduced to the operating range of 2.0 to 3.0, preferably 2.2 to 2.6.
PCT/IB2003/000982 2002-02-06 2003-02-06 Commercial process for electroplating nickel-phosphorus coatings WO2003066936A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003209584A AU2003209584A1 (en) 2002-02-06 2003-02-06 Commercial process for electroplating nickel-phosphorus coatings

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US35487902P 2002-02-06 2002-02-06
US60/354,879 2002-02-06

Publications (3)

Publication Number Publication Date
WO2003066936A2 WO2003066936A2 (en) 2003-08-14
WO2003066936A3 true WO2003066936A3 (en) 2003-11-13
WO2003066936B1 WO2003066936B1 (en) 2004-03-04

Family

ID=27734432

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2003/000982 WO2003066936A2 (en) 2002-02-06 2003-02-06 Commercial process for electroplating nickel-phosphorus coatings

Country Status (2)

Country Link
AU (1) AU2003209584A1 (en)
WO (1) WO2003066936A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180363159A1 (en) * 2015-12-18 2018-12-20 Rolex Sa Method for producing a timepiece component
CN114717614A (en) * 2022-05-27 2022-07-08 江苏星火特钢集团有限公司 Electroplating solution and surface treatment method for improving corrosion resistance of stainless steel by using same
CN115896576B (en) * 2022-12-23 2024-08-13 江苏盖特钨业科技有限公司 High-strength tungsten alloy and preparation method thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU527080A1 (en) * 1970-12-21 1977-03-05 Предприятие П/Я А-7555 Method of chemical nickel plating
CN1396303A (en) * 2001-07-07 2003-02-12 江门市福润科技开发有限公司 Metallic plating liquid

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU527080A1 (en) * 1970-12-21 1977-03-05 Предприятие П/Я А-7555 Method of chemical nickel plating
CN1396303A (en) * 2001-07-07 2003-02-12 江门市福润科技开发有限公司 Metallic plating liquid

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SUN JINGZHUANG, XUE HUIRU: "Study of increasing phosphorus content in electroless nickel", JOURNAL OF ELECTROPLATING AND ENVIRONMENTAL PROTECTION, vol. 15, no. 3(83), May 1995 (1995-05-01), pages 2 - 15-18 *

Also Published As

Publication number Publication date
WO2003066936A2 (en) 2003-08-14
WO2003066936B1 (en) 2004-03-04
AU2003209584A1 (en) 2003-09-02
AU2003209584A8 (en) 2003-09-02

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