ATE507328T1 - GRAY CHROME SURFACES - Google Patents

GRAY CHROME SURFACES

Info

Publication number
ATE507328T1
ATE507328T1 AT06122808T AT06122808T ATE507328T1 AT E507328 T1 ATE507328 T1 AT E507328T1 AT 06122808 T AT06122808 T AT 06122808T AT 06122808 T AT06122808 T AT 06122808T AT E507328 T1 ATE507328 T1 AT E507328T1
Authority
AT
Austria
Prior art keywords
metallization
chromium plating
chromium
galvanic
metallic surface
Prior art date
Application number
AT06122808T
Other languages
German (de)
Inventor
Wolf-Dieter Franz
Original Assignee
Wolf-Dieter Franz
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 Wolf-Dieter Franz filed Critical Wolf-Dieter Franz
Application granted granted Critical
Publication of ATE507328T1 publication Critical patent/ATE507328T1/en

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
    • C25D3/08—Deposition of black chromium, e.g. hexavalent chromium, CrVI
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
    • C25D11/38—Chromatising
    • 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
    • C25D3/06—Electroplating: Baths therefor from solutions of chromium from solutions of trivalent chromium
    • 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
    • C25D5/10—Electroplating with more than one layer of the same or of different metals
    • C25D5/12—Electroplating with more than one layer of the same or of different metals at least one layer being of nickel or chromium
    • C25D5/14—Electroplating with more than one layer of the same or of different metals at least one layer being of nickel or chromium two or more layers being of nickel or chromium, e.g. duplex or triplex 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
    • C25D5/34—Pretreatment of metallic surfaces to be electroplated
    • 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
    • C25D5/54—Electroplating of non-metallic surfaces
    • C25D5/56—Electroplating of non-metallic surfaces of plastics
    • 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
    • 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
    • C25D5/627—Electroplating characterised by the visual appearance of the layers, e.g. colour, brightness or mat appearance
    • 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
    • C25D5/34—Pretreatment of metallic surfaces to be electroplated
    • C25D5/36—Pretreatment of metallic surfaces to be electroplated of iron or steel
    • 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
    • C25D5/34—Pretreatment of metallic surfaces to be electroplated
    • C25D5/42—Pretreatment of metallic surfaces to be electroplated of light metals

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)

Abstract

Gray tinting involves chromium plating a metallic surface. The chromium plated metallic surface is plated with black chromium. The black chromium plating of the chromium plating metallic surface is carried out for 1, preferably 5 min galvanic treatment time. The chromium plating includes galvanic metallization, particularly copper metallization, and galvanic high polish metallization, particularly high polish nickel or copper metallization of the metallized surface in acidic solution.
AT06122808T 2006-10-24 2006-10-24 GRAY CHROME SURFACES ATE507328T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06122808A EP1918425B1 (en) 2006-10-24 2006-10-24 Greyish chromium surface

Publications (1)

Publication Number Publication Date
ATE507328T1 true ATE507328T1 (en) 2011-05-15

Family

ID=38198468

Family Applications (1)

Application Number Title Priority Date Filing Date
AT06122808T ATE507328T1 (en) 2006-10-24 2006-10-24 GRAY CHROME SURFACES

Country Status (3)

Country Link
EP (2) EP1995355A1 (en)
AT (1) ATE507328T1 (en)
DE (1) DE502006009403D1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101555614B (en) * 2008-04-11 2011-03-30 深圳富泰宏精密工业有限公司 Plastic surface galvanizing method
CN101638801A (en) * 2008-07-30 2010-02-03 深圳富泰宏精密工业有限公司 Method for processing surface of shell
DE102012008544A1 (en) 2012-05-02 2013-11-07 Umicore Galvanotechnik Gmbh Chromed composites without nickel coating
EP3339481A1 (en) * 2016-12-21 2018-06-27 Dr. M. Kampschulte GmbH & Co. KG Method and kit of parts for the pretreatment of objects to be chromed

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2542994A (en) * 1945-07-09 1951-02-27 Armco Steel Corp Electrolytic surface treatment of steel
US2623847A (en) * 1947-09-10 1952-12-30 Lloyd O Gilbert Black chromium plating
US3532608A (en) * 1967-09-29 1970-10-06 United States Steel Corp Method of treating steel and electrolyte therefor
CA1034075A (en) * 1969-05-07 1978-07-04 Lowell W. Austin Chromium plating for corrosion resistance
GB1305636A (en) * 1970-05-26 1973-02-07
US3642587A (en) * 1970-07-06 1972-02-15 United States Steel Corp Chromium electroplating process and product thereof
US3616303A (en) * 1970-07-06 1971-10-26 Inland Steel Co Electrolytic treatment of nonferrous metals
US3723261A (en) * 1970-10-30 1973-03-27 Allied Chem Black chromium plating process and composition
US5168015A (en) * 1989-05-30 1992-12-01 Toyo Kohan Co., Ltd. Composition and method for weldable tin-free steel having a chromium bilayer
DE19529843A1 (en) * 1995-08-12 1997-02-13 Marco Santini Galvanic chrome plating process

Also Published As

Publication number Publication date
EP1918425A1 (en) 2008-05-07
EP1918425B1 (en) 2011-04-27
EP1995355A1 (en) 2008-11-26
DE502006009403D1 (en) 2011-06-09

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