GB1040186A - Improvements in or relating to a power supply for electro plating - Google Patents

Improvements in or relating to a power supply for electro plating

Info

Publication number
GB1040186A
GB1040186A GB30987/63A GB3098763A GB1040186A GB 1040186 A GB1040186 A GB 1040186A GB 30987/63 A GB30987/63 A GB 30987/63A GB 3098763 A GB3098763 A GB 3098763A GB 1040186 A GB1040186 A GB 1040186A
Authority
GB
United Kingdom
Prior art keywords
plating
relating
power supply
copper
bright
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
GB30987/63A
Inventor
Glenn Russel Schaer
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.)
GEN DEV CORP
Original Assignee
GEN DEV CORP
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 GEN DEV CORP filed Critical GEN DEV CORP
Publication of GB1040186A publication Critical patent/GB1040186A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
    • H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
    • H02M7/06—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode
    • H02M7/066—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode particular circuits having a special characteristic
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
    • 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
    • C25D5/18—Electroplating using modulated, pulsed or reversing current
    • 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
    • C25D5/627—Electroplating characterised by the visual appearance of the layers, e.g. colour, brightness or mat appearance
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
    • H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
    • H02M7/06—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Power Engineering (AREA)
  • Electroplating Methods And Accessories (AREA)

Abstract

Electroplating, electrocleaning and electropolishing, particularly electroplating with chromium and copper, is performed by pulses of direct current derived from a rectifying circuit (see Division H2) wherein the intervals between pulses comprise 60 degrees or less of the A.C. cycle, the A.C. frequency being mains frequency say 60 c/s. In one example for copper plating, the supply was used with a spent bright-cyanide-copper plating bath. The plate produced in 10 minutes of plating at 20 amps/sq ft. was bright and free from micromodules. Comparison is made with known methods using low ripple current wherein current was interrupted for 1 second after 10 seconds plating.
GB30987/63A 1963-08-16 1963-08-06 Improvements in or relating to a power supply for electro plating Expired GB1040186A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1016063A CH415820A (en) 1963-08-16 1963-08-16 Three-phase rectifier installation to supply an electrolytic treatment device and use of this installation

Publications (1)

Publication Number Publication Date
GB1040186A true GB1040186A (en) 1966-08-24

Family

ID=4360030

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30987/63A Expired GB1040186A (en) 1963-08-16 1963-08-06 Improvements in or relating to a power supply for electro plating

Country Status (4)

Country Link
BE (1) BE636146A (en)
CH (1) CH415820A (en)
GB (1) GB1040186A (en)
NL (1) NL296535A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102677111A (en) * 2012-04-20 2012-09-19 立兆股份有限公司 Preparation method of workpiece with bright surface coating layer

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES453379A1 (en) * 1976-11-16 1978-01-01 Rodriguez Martinez Dionisio System for producing direct current for electrolytic processes
AT397165B (en) * 1991-02-20 1994-02-25 Uher Ag MULTI-PHASE POWER SUPPLY
DE4105463A1 (en) * 1991-02-21 1992-08-27 Siemens Ag CONTROL METHOD FOR A VOLTAGE CONVERTER WITH A LARGE INPUT VOLTAGE RANGE AND USE OF SUCH A METHOD

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102677111A (en) * 2012-04-20 2012-09-19 立兆股份有限公司 Preparation method of workpiece with bright surface coating layer
CN102677111B (en) * 2012-04-20 2015-03-11 立兆股份有限公司 Preparation method of workpiece with bright surface coating layer

Also Published As

Publication number Publication date
NL296535A (en)
CH415820A (en) 1966-06-30
BE636146A (en)

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