FR2183608A1 - Electroforming metal strip - using controlled current density zones to give quality surface - Google Patents

Electroforming metal strip - using controlled current density zones to give quality surface

Info

Publication number
FR2183608A1
FR2183608A1 FR7217047A FR7217047A FR2183608A1 FR 2183608 A1 FR2183608 A1 FR 2183608A1 FR 7217047 A FR7217047 A FR 7217047A FR 7217047 A FR7217047 A FR 7217047A FR 2183608 A1 FR2183608 A1 FR 2183608A1
Authority
FR
France
Prior art keywords
current density
metal strip
controlled current
quality surface
density zones
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.)
Granted
Application number
FR7217047A
Other languages
French (fr)
Other versions
FR2183608B1 (en
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.)
G N
Original Assignee
G N
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 G N filed Critical G N
Priority to FR7217047A priority Critical patent/FR2183608A1/en
Publication of FR2183608A1 publication Critical patent/FR2183608A1/en
Application granted granted Critical
Publication of FR2183608B1 publication Critical patent/FR2183608B1/fr
Granted 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
    • C25D1/00—Electroforming
    • C25D1/04—Wires; Strips; Foils

Abstract

Method comprises electroplating on to a single cathode while altering the current density as follows initially the c.d. is 1000-5000 A/m2; in the penultimate stage c.d. is 5000-10000 A/m2 for 1-300 sec.; and in the final stage the c.d. is 4000-50000 A/m2 for 1-200 sec. The electrolyte is stirred in all stages except the last. This gives improved quality of the outer surface of the strip so that it has the required adhesion with dielectrics when used in electronics.
FR7217047A 1972-05-12 1972-05-12 Electroforming metal strip - using controlled current density zones to give quality surface Granted FR2183608A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7217047A FR2183608A1 (en) 1972-05-12 1972-05-12 Electroforming metal strip - using controlled current density zones to give quality surface

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7217047A FR2183608A1 (en) 1972-05-12 1972-05-12 Electroforming metal strip - using controlled current density zones to give quality surface

Publications (2)

Publication Number Publication Date
FR2183608A1 true FR2183608A1 (en) 1973-12-21
FR2183608B1 FR2183608B1 (en) 1976-06-11

Family

ID=9098428

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7217047A Granted FR2183608A1 (en) 1972-05-12 1972-05-12 Electroforming metal strip - using controlled current density zones to give quality surface

Country Status (1)

Country Link
FR (1) FR2183608A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2311864A1 (en) * 1975-05-19 1976-12-17 Xerox Corp PROCESS FOR ELECTROFORMING CYLINDERS IN NICKEL, COBALT OR NICKEL-COBALT ALLOY SHEET AND NEW PRODUCTS THUS OBTAINED
FR2390517A1 (en) * 1977-05-10 1978-12-08 Coppertron Sa INSTALLATION FOR THE ELECTRO-PRODUCTION OF COPPER IN SHEETS INTENDED TO BE APPLIED IN PARTICULAR TO DIELECTRIC MATERIALS

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
FR2311864A1 (en) * 1975-05-19 1976-12-17 Xerox Corp PROCESS FOR ELECTROFORMING CYLINDERS IN NICKEL, COBALT OR NICKEL-COBALT ALLOY SHEET AND NEW PRODUCTS THUS OBTAINED
FR2390517A1 (en) * 1977-05-10 1978-12-08 Coppertron Sa INSTALLATION FOR THE ELECTRO-PRODUCTION OF COPPER IN SHEETS INTENDED TO BE APPLIED IN PARTICULAR TO DIELECTRIC MATERIALS

Also Published As

Publication number Publication date
FR2183608B1 (en) 1976-06-11

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Legal Events

Date Code Title Description
ST Notification of lapse