FR2109018A1 - Chromium plating - accelerated by fast electrolyte circulation between electrodes - Google Patents

Chromium plating - accelerated by fast electrolyte circulation between electrodes

Info

Publication number
FR2109018A1
FR2109018A1 FR7039337A FR7039337A FR2109018A1 FR 2109018 A1 FR2109018 A1 FR 2109018A1 FR 7039337 A FR7039337 A FR 7039337A FR 7039337 A FR7039337 A FR 7039337A FR 2109018 A1 FR2109018 A1 FR 2109018A1
Authority
FR
France
Prior art keywords
accelerated
electrodes
chromium plating
electrolyte circulation
electrolyte
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.)
Withdrawn
Application number
FR7039337A
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.)
INST ELEKTROKHIMII
Original Assignee
INST ELEKTROKHIMII
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 INST ELEKTROKHIMII filed Critical INST ELEKTROKHIMII
Priority to DE19702053382 priority Critical patent/DE2053382A1/en
Priority to FR7039337A priority patent/FR2109018A1/en
Publication of FR2109018A1 publication Critical patent/FR2109018A1/en
Withdrawn legal-status Critical Current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
    • C25D5/08—Electroplating with moving electrolyte e.g. jet electroplating

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)
  • Electroplating And Plating Baths Therefor (AREA)

Abstract

Electrolytic Cr-plating is carried out with the electrolyte being passed at a speed of 1-50 m/sec through the electrode gas and a current density of between 200 and 1200 A/dm2. The ratio between the electrolyte circulating speed and the current density is between 1:24 and 1:200. The contours of the workpiece cathode and the anode should be parallel so that a constant gap is formed for the electrolyte. The process is between 10-20 times faster, than conventional methods, and permits deposn. thicknesses of =200 mu m of improved hardness.
FR7039337A 1970-10-30 1970-10-30 Chromium plating - accelerated by fast electrolyte circulation between electrodes Withdrawn FR2109018A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE19702053382 DE2053382A1 (en) 1970-10-30 1970-10-30 Process for the electrical chrome plating of metal surfaces in the electrolyte flow
FR7039337A FR2109018A1 (en) 1970-10-30 1970-10-30 Chromium plating - accelerated by fast electrolyte circulation between electrodes

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19702053382 DE2053382A1 (en) 1970-10-30 1970-10-30 Process for the electrical chrome plating of metal surfaces in the electrolyte flow
FR7039337A FR2109018A1 (en) 1970-10-30 1970-10-30 Chromium plating - accelerated by fast electrolyte circulation between electrodes

Publications (1)

Publication Number Publication Date
FR2109018A1 true FR2109018A1 (en) 1972-05-26

Family

ID=25759999

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7039337A Withdrawn FR2109018A1 (en) 1970-10-30 1970-10-30 Chromium plating - accelerated by fast electrolyte circulation between electrodes

Country Status (2)

Country Link
DE (1) DE2053382A1 (en)
FR (1) FR2109018A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2258466A1 (en) * 1974-01-23 1975-08-18 Rotel Holding Ag
FR2289636A1 (en) * 1974-10-29 1976-05-28 Rotel Ag Chromium electro-plating bath contg metal complex - of polyhalogenated polycarboxylic acid improving throwing power and hardness

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2258466A1 (en) * 1974-01-23 1975-08-18 Rotel Holding Ag
FR2289636A1 (en) * 1974-10-29 1976-05-28 Rotel Ag Chromium electro-plating bath contg metal complex - of polyhalogenated polycarboxylic acid improving throwing power and hardness

Also Published As

Publication number Publication date
DE2053382A1 (en) 1972-05-04

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Legal Events

Date Code Title Description
ST Notification of lapse