ES349800A1 - Chromium plating from a fluosilicate type bath containing sodium,ammonium and/or magnesium ions - Google Patents

Chromium plating from a fluosilicate type bath containing sodium,ammonium and/or magnesium ions

Info

Publication number
ES349800A1
ES349800A1 ES349800A ES349800A ES349800A1 ES 349800 A1 ES349800 A1 ES 349800A1 ES 349800 A ES349800 A ES 349800A ES 349800 A ES349800 A ES 349800A ES 349800 A1 ES349800 A1 ES 349800A1
Authority
ES
Spain
Prior art keywords
ions
fluosilicate
ammonium
magnesium ions
containing sodium
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
ES349800A
Other languages
Spanish (es)
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.)
KEWANVE OIL Co
Original Assignee
KEWANVE OIL 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 KEWANVE OIL Co filed Critical KEWANVE OIL Co
Publication of ES349800A1 publication Critical patent/ES349800A1/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

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)

Abstract

Chromium is electro-deposited on a metallic substrate from a potassium and strontium-free aqueous acidic solution containing 200-380 gm/1 chromium trioxide sulphate ions 0À6-5À1 gm/1 fluosilicate ions and at least one of the following: 2-24 gm/1 sodium ions, 2-22 gm/1 magnesium ions or 2-20 gm/1 ammonium ions the sulphate ions being present in an amount such that the weight ratio CrO 3 /SO 4 is between 150:1 and 230:1. The bath may also contain 0.001-0.015 gm/1 selenate ions when depositing micro-cracked chromium.
ES349800A 1967-02-17 1968-01-26 Chromium plating from a fluosilicate type bath containing sodium,ammonium and/or magnesium ions Expired ES349800A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US61676267A 1967-02-17 1967-02-17

Publications (1)

Publication Number Publication Date
ES349800A1 true ES349800A1 (en) 1969-11-01

Family

ID=24470845

Family Applications (1)

Application Number Title Priority Date Filing Date
ES349800A Expired ES349800A1 (en) 1967-02-17 1968-01-26 Chromium plating from a fluosilicate type bath containing sodium,ammonium and/or magnesium ions

Country Status (5)

Country Link
US (1) US3514380A (en)
ES (1) ES349800A1 (en)
FR (1) FR1554331A (en)
GB (1) GB1224502A (en)
NL (1) NL146542B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1289117A (en) * 1969-10-10 1972-09-13
US3909404A (en) * 1973-02-26 1975-09-30 Oxy Metal Industries Corp Composition and process for electrodepositing a black chromium deposit
DE4430923C2 (en) * 1994-08-31 1997-10-09 Schaeffler Waelzlager Kg Galvanic chrome bath, process for the electrodeposition of chromium and use of the bath

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2800438A (en) * 1955-07-26 1957-07-23 Metal & Thermit Corp Chromium plating
US3041257A (en) * 1960-08-25 1962-06-26 Westinghouse Electric Corp Chromium electroplating
NL256857A (en) * 1961-10-13
DE1496967A1 (en) * 1963-08-26
US3340165A (en) * 1964-07-20 1967-09-05 M & T Chemicals Inc Method of electroplating microcrack chromium

Also Published As

Publication number Publication date
NL6801613A (en) 1968-08-19
FR1554331A (en) 1969-01-17
US3514380A (en) 1970-05-26
GB1224502A (en) 1971-03-10
NL146542B (en) 1975-07-15

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