GB789887A - Improvements in bright nickel electroplating for the reception of chromium electroplating - Google Patents

Improvements in bright nickel electroplating for the reception of chromium electroplating

Info

Publication number
GB789887A
GB789887A GB1344/55A GB134455A GB789887A GB 789887 A GB789887 A GB 789887A GB 1344/55 A GB1344/55 A GB 1344/55A GB 134455 A GB134455 A GB 134455A GB 789887 A GB789887 A GB 789887A
Authority
GB
United Kingdom
Prior art keywords
bright nickel
electrodepositing
nickel
bath
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
GB1344/55A
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.)
Harshaw Chemical Co
Original Assignee
Harshaw Chemical 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 Harshaw Chemical Co filed Critical Harshaw Chemical Co
Publication of GB789887A publication Critical patent/GB789887A/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
    • C25D3/12—Electroplating: Baths therefor from solutions of nickel or cobalt
    • C25D3/14—Electroplating: Baths therefor from solutions of nickel or cobalt from baths containing acetylenic or heterocyclic compounds
    • C25D3/18—Heterocyclic compounds

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

789,887. Electrodepositing successively semibright nickel, bright nickel and chromium. HARSHAW CHEMICAL CO. Jan. 17, 1955 [Feb. 4, 1954], No. 1344/55. Class 41. A surface of extreme brightness is produced on a base metal, e.g. steel, copper, or brass, of smoothness not worse than 50 R.M.S. microinches by electrodepositing semi-bright nickel from an aqueous acid buffered nickel sulphate chloride bath containing coumarin or a derivative thereof as in Specification 622,761 to a thickness of 0.5 to 1.5 mil. electrodepositing directly thereon bright nickel of a thickness of 0.1 to 0.5 mil. from a similar bath which contains additionally an aromatic sulphonic acid or sulphonate, an aromatic sulphonamide or sulphonimide or salt thereof, or an aromatic sulphonyl chloride, and after rinsing electrodepositing a layer of chromium directly on the bright nickel surface. The semi-bright nickel bath may contain additionally a wetting agent such as sodium lauryl sulphate, while the bright nickel bath may also contain cobalt, cadmium or zin c as the chlorides or sulphates; selenious or selenic acids; triaminotriphenyl methane or amine; N: N<SP>1</SP> - (oxydiethylene) - bis isoquinolinium chloride or -bis pyridinium chlorate ; cyanoacetic acid; ethylene cyanohydrin; or nitriles of acetic, propionic, succinic, or benzoic acids. Specifications 525,847, 684,434 and 741,096 also are referred to.
GB1344/55A 1954-02-04 1955-01-17 Improvements in bright nickel electroplating for the reception of chromium electroplating Expired GB789887A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US789887XA 1954-02-04 1954-02-04

Publications (1)

Publication Number Publication Date
GB789887A true GB789887A (en) 1958-01-29

Family

ID=22147415

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1344/55A Expired GB789887A (en) 1954-02-04 1955-01-17 Improvements in bright nickel electroplating for the reception of chromium electroplating

Country Status (4)

Country Link
BE (1) BE535300A (en)
DE (1) DE957615C (en)
FR (1) FR1124445A (en)
GB (1) GB789887A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3186925A (en) * 1960-11-01 1965-06-01 Gen Motors Corp Chromium plating process with a pure nickel strike
US3528894A (en) * 1966-08-25 1970-09-15 M & T Chemicals Inc Method of electrodepositing corrosion resistant coating

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1176956B (en) * 1958-08-27 1964-08-27 Bosch Gmbh Robert Process for the multi-stage galvanic deposition of shiny nickel coatings
US3090733A (en) * 1961-04-17 1963-05-21 Udylite Res Corp Composite nickel electroplate

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3186925A (en) * 1960-11-01 1965-06-01 Gen Motors Corp Chromium plating process with a pure nickel strike
US3528894A (en) * 1966-08-25 1970-09-15 M & T Chemicals Inc Method of electrodepositing corrosion resistant coating

Also Published As

Publication number Publication date
DE957615C (en) 1957-01-17
BE535300A (en)
FR1124445A (en) 1956-10-10

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