FR2369356A2 - PROCESS FOR ELECTROLYTIC DEPOSITION OF CHROME ON NON-CONDUCTIVE SURFACES - Google Patents

PROCESS FOR ELECTROLYTIC DEPOSITION OF CHROME ON NON-CONDUCTIVE SURFACES

Info

Publication number
FR2369356A2
FR2369356A2 FR7731927A FR7731927A FR2369356A2 FR 2369356 A2 FR2369356 A2 FR 2369356A2 FR 7731927 A FR7731927 A FR 7731927A FR 7731927 A FR7731927 A FR 7731927A FR 2369356 A2 FR2369356 A2 FR 2369356A2
Authority
FR
France
Prior art keywords
sulfur
coating
electrolytic deposition
chromium
chrome
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.)
Pending
Application number
FR7731927A
Other languages
French (fr)
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.)
Inco Europe Ltd
Original Assignee
Inco Europe Ltd
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 Inco Europe Ltd filed Critical Inco Europe Ltd
Publication of FR2369356A2 publication Critical patent/FR2369356A2/en
Pending 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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Engineering & Computer Science (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Electroplating And Plating Baths Therefor (AREA)
  • Electrolytic Production Of Metals (AREA)
  • Laminated Bodies (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Chemically Coating (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)

Abstract

L'invention concerne un procédé de chromage. Il s'agit d'un procédé de chromage d'une surface formée d'une composition ayant une résistivité volumétrique inférieure à 1 000 ohms-cm et comprenant un noir de carbone, du soufre élémentaire ou un composé soufré et un polymère organique qui peut se lier chimiquement au soufre élémentaire ou à au moins une partie du soufre du composé soufré, procédé caractérisé par le fait que l'on applique à la surface à chromer un revêtement électrolytique d'un métal du groupe VIII de la Classification périodique ou d'un alliage correspondant, que l'on recouvre ce revêtement d'une couche métallique de barrage pratiquement imperméable à l'hydrogène à des températures ne dépassant pas 100 degrés C et que l'on complète le revêtement de la surface par un dépôt électrolytique adhérent de chrome. Ce procédé permet un chromage amélioré de pièces peu conductrices.The invention relates to a chromium plating process. It is a process for chroming a surface formed from a composition having a volumetric resistivity of less than 1000 ohm-cm and comprising a carbon black, elemental sulfur or a sulfur compound and an organic polymer which can to bond chemically to elemental sulfur or to at least part of the sulfur of the sulfur compound, a process characterized by the fact that an electrolytic coating of a metal from group VIII of the Periodic Classification or from the surface to be chromed is applied to a corresponding alloy, that this coating is covered with a metallic barrier layer practically impermeable to hydrogen at temperatures not exceeding 100 degrees C and that the coating of the surface is completed by an adherent electrolytic deposition of chromium. This process allows improved chrome plating of poorly conductive parts.

FR7731927A 1976-10-26 1977-10-24 PROCESS FOR ELECTROLYTIC DEPOSITION OF CHROME ON NON-CONDUCTIVE SURFACES Pending FR2369356A2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US73531276A 1976-10-26 1976-10-26

Publications (1)

Publication Number Publication Date
FR2369356A2 true FR2369356A2 (en) 1978-05-26

Family

ID=24955243

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7731927A Pending FR2369356A2 (en) 1976-10-26 1977-10-24 PROCESS FOR ELECTROLYTIC DEPOSITION OF CHROME ON NON-CONDUCTIVE SURFACES

Country Status (14)

Country Link
JP (1) JPS5354133A (en)
AT (1) AT358350B (en)
AU (1) AU508106B2 (en)
BE (1) BE860143R (en)
CA (1) CA1120420A (en)
CH (1) CH609733A5 (en)
DE (1) DE2747920A1 (en)
ES (1) ES463498A2 (en)
FR (1) FR2369356A2 (en)
GB (1) GB1534638A (en)
IT (1) IT1116138B (en)
NL (1) NL7711671A (en)
SE (1) SE7711982L (en)
ZA (1) ZA776225B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3004265A1 (en) * 1979-02-08 1980-10-23 Kokoku Rubber Ind Resin compsn. allowing electroplating after plasma oxidn. - contg. thermoplastic resin and pref. elastomer, carbon black and dry etching effect-promoting additive(s)
LT2000074A (en) * 2000-07-20 2002-01-25 Mykolas Baranauskas The method for preparing electrical conductive coatings on dielectric surface
GB0029954D0 (en) * 2000-12-08 2001-01-24 Caradon Mira Ltd Improvements in or relating to metal finishes

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1253949A (en) * 1960-01-07 1961-02-17 Nobel Bozel Polymetallic plates for offset printing
FR1521281A (en) * 1966-05-02 1968-04-12 M & T Chemicals Process for depositing nickel on a metal plate
DE2104058A1 (en) * 1971-01-11 1972-08-17 Siemens Ag Process for preferably double-sided coating of plastic films with metal

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1253949A (en) * 1960-01-07 1961-02-17 Nobel Bozel Polymetallic plates for offset printing
FR1521281A (en) * 1966-05-02 1968-04-12 M & T Chemicals Process for depositing nickel on a metal plate
DE2104058A1 (en) * 1971-01-11 1972-08-17 Siemens Ag Process for preferably double-sided coating of plastic films with metal

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ELECTROCHEMICAL TECHNOLOGY, janvier/février 1968, C. FREEMAN et al.: 'Preplating high-strength steels with copper to prevent embrittlement during chromium plating', pages 64 - 66 *

Also Published As

Publication number Publication date
SE7711982L (en) 1978-04-27
ES463498A2 (en) 1978-07-16
NL7711671A (en) 1978-04-28
CA1120420A (en) 1982-03-23
ZA776225B (en) 1978-11-29
BE860143R (en) 1978-04-26
AT358350B (en) 1980-09-10
AU508106B2 (en) 1980-03-06
GB1534638A (en) 1978-12-06
IT1116138B (en) 1986-02-10
CH609733A5 (en) 1979-03-15
DE2747920A1 (en) 1978-09-07
JPS5354133A (en) 1978-05-17
ATA760877A (en) 1980-01-15
AU2967877A (en) 1979-04-26

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