ZA795553B - System for generating and autocontrolling the voltage or current wave form applicable to processes for the electrolytic colouring of anodized aluminium - Google Patents

System for generating and autocontrolling the voltage or current wave form applicable to processes for the electrolytic colouring of anodized aluminium

Info

Publication number
ZA795553B
ZA795553B ZA00795553A ZA795553A ZA795553B ZA 795553 B ZA795553 B ZA 795553B ZA 00795553 A ZA00795553 A ZA 00795553A ZA 795553 A ZA795553 A ZA 795553A ZA 795553 B ZA795553 B ZA 795553B
Authority
ZA
South Africa
Prior art keywords
autocontrolling
processes
voltage
generating
wave form
Prior art date
Application number
ZA00795553A
Other languages
English (en)
Inventor
J Pelaez
Original Assignee
Empresa Nacional Aluminio
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 Empresa Nacional Aluminio filed Critical Empresa Nacional Aluminio
Publication of ZA795553B publication Critical patent/ZA795553B/xx

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25DPROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D21/00Processes for servicing or operating cells for electrolytic coating
    • C25D21/12Process control or regulation
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05FSYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10Regulating voltage or current
    • G05F1/12Regulating voltage or current wherein the variable actually regulated by the final control device is ac
    • G05F1/40Regulating voltage or current wherein the variable actually regulated by the final control device is ac using discharge tubes or semiconductor devices as final control devices
    • G05F1/44Regulating voltage or current wherein the variable actually regulated by the final control device is ac using discharge tubes or semiconductor devices as final control devices semiconductor devices only
    • G05F1/445Regulating voltage or current wherein the variable actually regulated by the final control device is ac using discharge tubes or semiconductor devices as final control devices semiconductor devices only being transistors in series with the load
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S204/00Chemistry: electrical and wave energy
    • Y10S204/09Wave forms

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Automation & Control Theory (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Electrochemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Power Engineering (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
  • Electrolytic Production Of Metals (AREA)
  • Control Of Voltage And Current In General (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Prevention Of Electric Corrosion (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)
ZA00795553A 1978-10-31 1979-10-17 System for generating and autocontrolling the voltage or current wave form applicable to processes for the electrolytic colouring of anodized aluminium ZA795553B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES474736A ES474736A1 (es) 1978-10-31 1978-10-31 Sistema de generacion y autocontrol de la forma de onda y - tension o corriente aplicable a procesos de coloracion elec-trolitica del aluminio anodizado.

Publications (1)

Publication Number Publication Date
ZA795553B true ZA795553B (en) 1980-09-24

Family

ID=8477031

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA00795553A ZA795553B (en) 1978-10-31 1979-10-17 System for generating and autocontrolling the voltage or current wave form applicable to processes for the electrolytic colouring of anodized aluminium

Country Status (39)

Country Link
US (1) US4338176A (el)
JP (1) JPS5569299A (el)
KR (1) KR840002602Y1 (el)
AR (1) AR221111A1 (el)
AT (1) AT374636B (el)
AU (1) AU516345B2 (el)
BE (1) BE879658A (el)
BG (1) BG33299A3 (el)
BR (1) BR7907025A (el)
CA (1) CA1146237A (el)
CH (1) CH652151A5 (el)
CU (1) CU21008A (el)
DD (1) DD146968A5 (el)
DE (1) DE2941191C2 (el)
DK (1) DK458879A (el)
EG (1) EG13767A (el)
ES (1) ES474736A1 (el)
FR (1) FR2440643A1 (el)
GB (1) GB2034083B (el)
GR (1) GR72852B (el)
HU (1) HU179456B (el)
IE (1) IE48978B1 (el)
IN (1) IN153192B (el)
IS (1) IS1160B6 (el)
IT (1) IT1119243B (el)
LU (1) LU81827A1 (el)
MA (1) MA18625A1 (el)
MX (1) MX146914A (el)
NL (1) NL7907753A (el)
NO (1) NO152578C (el)
NZ (1) NZ191972A (el)
OA (1) OA06358A (el)
PL (1) PL121986B1 (el)
PT (1) PT70370A (el)
RO (1) RO80666A (el)
SE (1) SE7908982L (el)
TR (1) TR20677A (el)
YU (1) YU264879A (el)
ZA (1) ZA795553B (el)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4441967A (en) * 1982-12-23 1984-04-10 The United States Of America As Represented By The Secretary Of The Army Method of passivating mercury cadmium telluride using modulated DC anodization
DE3718741A1 (de) * 1986-07-23 1988-02-04 Henkel Kgaa Verfahren und schaltungsanordnung zur elektrolytischen einfaerbung anodisierter aluminiumoberflaechen
DE3743113A1 (de) * 1987-12-18 1989-06-29 Gartner & Co J Verfahren zum elektrolytischen faerben von anodisch erzeugten oxidschichten auf aluminium und aluminiumlegierungen
ES2048612B1 (es) * 1991-04-11 1995-07-01 Novamax Tech Holdings Mejoras introducidas en los sistemas de generacion y control de corriente para procesos electroliticos>
US5899709A (en) * 1992-04-07 1999-05-04 Semiconductor Energy Laboratory Co., Ltd. Method for forming a semiconductor device using anodic oxidation
US6146515A (en) * 1998-12-16 2000-11-14 Tecnu, Inc. Power supply and method for producing non-periodic complex waveforms
US6777831B2 (en) * 2000-10-18 2004-08-17 Tecnu, Inc. Electrochemical processing power device
CA2605734A1 (en) 2005-04-22 2006-11-02 Shell Internationale Research Maatschappij B.V. Systems and processes for use in treating subsurface formations
NZ567415A (en) * 2005-10-24 2010-12-24 Shell Int Research Solution mining systems and methods for treating hyrdocarbon containing formations
AU2007240367B2 (en) 2006-04-21 2011-04-07 Shell Internationale Research Maatschappij B.V. High strength alloys
RU2477368C2 (ru) 2007-10-19 2013-03-10 Шелл Интернэшнл Рисерч Маатсхаппий Б.В. Способ обработки углеводородсодержащих пластов с использованием неравномерно расположенных источников тепла
CN105177667B (zh) * 2015-10-19 2018-06-26 广东坚美铝型材厂(集团)有限公司 着色控制方法及***

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1902983C3 (de) * 1968-06-21 1978-06-22 Keller, Eberhard, 7121 Freudental Verfahren zum elektrolytischen Färben von anodischen Oxidschichten auf Aluminium oder Aluminiumlegierungen
US3550025A (en) * 1968-10-16 1970-12-22 David S Stodolsky Class b transistor power amplifier
US3875496A (en) * 1974-03-13 1975-04-01 Glenayre Electronics Ltd Static inverter using multiple signal control loops
DE2425625A1 (de) * 1974-05-27 1975-12-04 Cillichemie Hochspannungsgenerator insbesondere fuer kapazitive lasten wie ozongeneratoren
US3983014A (en) * 1974-12-16 1976-09-28 The Scionics Corporation Anodizing means and techniques
GB1507872A (en) * 1975-02-21 1978-04-19 Roband Electronics Ltd Apparatus for generating alternating currents of accurately predetermined waveform
ES437604A1 (es) * 1975-05-12 1977-01-16 Empresa Nacional Aluminio Sistema de autocontrol y regulacion del valor medio de la tension aplicada en procesos de coloracion electrolitica de aluminio anodizado.
US4099109A (en) * 1976-10-01 1978-07-04 Westinghouse Electric Corp. Digital apparatus for synthesizing pulse width modulated waveforms and digital pulse width modulated control system

Also Published As

Publication number Publication date
BE879658A (fr) 1980-02-15
OA06358A (fr) 1981-06-30
GB2034083B (en) 1983-04-13
YU264879A (en) 1982-06-30
SE7908982L (sv) 1980-05-01
HU179456B (en) 1982-10-28
EG13767A (en) 1982-09-30
AU5158779A (en) 1980-05-22
ATA678779A (de) 1983-09-15
BR7907025A (pt) 1980-06-24
NZ191972A (en) 1983-05-31
FR2440643A1 (fr) 1980-05-30
NL7907753A (nl) 1980-05-02
AR221111A1 (es) 1980-12-30
IE792076L (en) 1980-04-30
IS2514A7 (is) 1980-05-02
PL219301A1 (el) 1980-08-11
ES474736A1 (es) 1979-04-01
PT70370A (fr) 1979-11-01
IT7969039A0 (it) 1979-10-19
CU21008A (es) 1981-09-09
AU516345B2 (en) 1981-05-28
NO152578B (no) 1985-07-08
TR20677A (tr) 1982-04-02
NO152578C (no) 1985-10-16
DK458879A (da) 1980-05-01
DD146968A5 (de) 1981-03-11
CA1146237A (en) 1983-05-10
US4338176A (en) 1982-07-06
RO80666A (ro) 1982-12-06
MX146914A (es) 1982-09-07
JPS5569299A (en) 1980-05-24
IT1119243B (it) 1986-03-03
KR840002602Y1 (ko) 1984-12-10
PL121986B1 (en) 1982-06-30
DE2941191C2 (de) 1983-08-18
BG33299A3 (en) 1983-01-14
MA18625A1 (fr) 1980-07-01
LU81827A1 (fr) 1980-01-25
NO793487L (no) 1980-05-02
IE48978B1 (en) 1985-06-26
FR2440643B1 (el) 1984-03-16
GB2034083A (en) 1980-05-29
DE2941191A1 (de) 1980-05-08
AT374636B (de) 1984-05-10
CH652151A5 (de) 1985-10-31
IS1160B6 (is) 1984-05-10
KR840006010U (ko) 1984-11-10
IN153192B (el) 1984-06-16
GR72852B (el) 1983-12-08

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