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GB1378973A - Process of electroplating with chromium electroplating composition and electroplated article - Google Patents

Process of electroplating with chromium electroplating composition and electroplated article

Info

Publication number
GB1378973A
GB1378973A GB2832272A GB2832272A GB1378973A GB 1378973 A GB1378973 A GB 1378973A GB 2832272 A GB2832272 A GB 2832272A GB 2832272 A GB2832272 A GB 2832272A GB 1378973 A GB1378973 A GB 1378973A
Authority
GB
United Kingdom
Prior art keywords
electro
deposited
acid
electroplating
chromium
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
GB2832272A
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.)
M&T Chemicals Inc
Original Assignee
M&T Chemicals Inc
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 M&T Chemicals Inc filed Critical M&T Chemicals Inc
Publication of GB1378973A publication Critical patent/GB1378973A/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
    • C25D3/00—Electroplating: Baths therefor
    • C25D3/02—Electroplating: Baths therefor from solutions
    • C25D3/04—Electroplating: Baths therefor from solutions of chromium
    • C25D3/10—Electroplating: Baths therefor from solutions of chromium characterised by the organic bath constituents used
    • 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
    • C25D3/04—Electroplating: Baths therefor from solutions of chromium

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

1378973 Electro-plating with chromium M & T CHEMICALS Inc 16 June 1972 [18 June 1971] 28322/72 Heading C7B Cr (e.g. micro-crack Cr having at least 40 microcracks per cm) is electro-plated from an aqueous bath containing (a) hexavalent Cr ions, (b) sulphate or simple or complex fluoride ions, and (c) sulphoacetic acid, isethionate or isethionic acid (i.e CH 2 OH CH 2 SO 3 H). Specified bath constituents are chromic acid, H 2 SO 4 and sulphates of NH 4 , Li, Na, K, Mg, Ca and Sr; La<SP>3+</SP>; F-, SiF 6 <SP>2-</SP>. BF 4 <SP>-</SP> AlF 6 <SP>3-</SP>, PF 6 <SP>-</SP>, ZrF 6 <SP>-</SP> and TiF 6 <SP>2-</SP>; soluble Se compounds such as selenic or selenous acid or specified salts or lower alkyl esters thereof; and Ce salts such as carbonate, fluoride and sulphate. The Cr electro-plate may be at least 1 x 10<SP>-4</SP>mm thick. The electro-plating may be at 30-70‹C. The micro-crack Cr may be electro-deposited on to a substrate bearing previously electro-deposited hard Cr or, in the Examples, is electro-deposited on to brass panels bearing previously electrodeposited Ni. The Cr may be deposited to provide bearing surfaces or wear-resistant surfaces.
GB2832272A 1971-06-18 1972-06-16 Process of electroplating with chromium electroplating composition and electroplated article Expired GB1378973A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US15470371A 1971-06-18 1971-06-18
US00262151A US3804728A (en) 1971-06-18 1972-06-12 Novel chromium plating compositions

Publications (1)

Publication Number Publication Date
GB1378973A true GB1378973A (en) 1975-01-02

Family

ID=26851696

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2832272A Expired GB1378973A (en) 1971-06-18 1972-06-16 Process of electroplating with chromium electroplating composition and electroplated article

Country Status (6)

Country Link
US (2) US3758390A (en)
AU (1) AU465824B2 (en)
DE (1) DE2229883A1 (en)
FR (1) FR2142014B1 (en)
GB (1) GB1378973A (en)
NL (1) NL7208359A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2762695C1 (en) * 2020-11-20 2021-12-22 Федеральное государственное бюджетное образовательное учреждение высшего образования "Московский автомобильно-дорожный государственный технический университет (МАДИ)" Method for electrolytic chromium plating

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3943040A (en) * 1974-09-20 1976-03-09 The Harshaw Chemical Company Microcracked chromium from a bath using an organic sulfur compound
FR2529511A1 (en) * 1982-07-02 1984-01-06 Nouel Jean Marie OFFSET PLATES BASED STEEL AND CHROME MULTILAYER
DE3402554A1 (en) * 1984-01-26 1985-08-08 LPW-Chemie GmbH, 4040 Neuss DEPOSITION OF HARD CHROME ON A METAL ALLOY FROM AN AQUEOUS ELECTROLYTE CONTAINING CHROME ACID AND SULFURIC ACID
US4588481A (en) * 1985-03-26 1986-05-13 M&T Chemicals Inc. Chromium plating bath for producing non-iridescent, adherent, bright chromium deposits at high efficiencies and substantially free of cathodic low current density etching
US4828656A (en) * 1987-02-09 1989-05-09 M&T Chemicals Inc. High performance electrodeposited chromium layers
US4810336A (en) * 1988-06-21 1989-03-07 M&T Chemicals Inc. Electroplating bath and process for depositing functional, at high efficiencies, chromium which is bright and smooth
US4927506A (en) * 1989-09-14 1990-05-22 Atochem North America, Inc. High-performance electrodeposited chromium layers formed at high current efficiencies
DE102005059367B4 (en) * 2005-12-13 2014-04-03 Enthone Inc. Electrolytic composition and method of depositing crack-free, corrosion-resistant and hard chromium and chromium alloy layers

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1255874A (en) * 1959-05-28 1961-03-10 Metal & Thermit Corp Electrolytic chrome plating process
FR1407483A (en) * 1963-09-11 1965-07-30 Udylite Corp Improvements to electrolytic chrome baths
US3745097A (en) * 1969-05-26 1973-07-10 M & T Chemicals Inc Electrodeposition of an iridescent chromium coating
US3634211A (en) * 1969-10-06 1972-01-11 M & T Chemicals Inc Process for electroplating chromium and electrolytes therefor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2762695C1 (en) * 2020-11-20 2021-12-22 Федеральное государственное бюджетное образовательное учреждение высшего образования "Московский автомобильно-дорожный государственный технический университет (МАДИ)" Method for electrolytic chromium plating

Also Published As

Publication number Publication date
AU465824B2 (en) 1975-10-09
FR2142014A1 (en) 1973-01-26
FR2142014B1 (en) 1977-12-23
AU4356372A (en) 1974-01-03
US3804728A (en) 1974-04-16
NL7208359A (en) 1972-12-20
DE2229883A1 (en) 1972-12-21
US3758390A (en) 1973-09-11

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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