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ES8404067A1 - Method for controlling thickness of electrodeposition film - Google Patents

Method for controlling thickness of electrodeposition film

Info

Publication number
ES8404067A1
ES8404067A1 ES521248A ES521248A ES8404067A1 ES 8404067 A1 ES8404067 A1 ES 8404067A1 ES 521248 A ES521248 A ES 521248A ES 521248 A ES521248 A ES 521248A ES 8404067 A1 ES8404067 A1 ES 8404067A1
Authority
ES
Spain
Prior art keywords
electrodeposition
relation
liquid
charge amount
amount
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
ES521248A
Other languages
Spanish (es)
Other versions
ES521248A0 (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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of ES8404067A1 publication Critical patent/ES8404067A1/en
Publication of ES521248A0 publication Critical patent/ES521248A0/en
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
    • G01B7/06—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D13/00—Electrophoretic coating characterised by the process
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D13/00—Electrophoretic coating characterised by the process
    • C25D13/22—Servicing or operating apparatus or multistep processes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • G01N27/416—Systems
    • G01N27/42—Measuring deposition or liberation of materials from an electrolyte; Coulometry, i.e. measuring coulomb-equivalent of material in an electrolyte

Landscapes

  • Chemical & Material Sciences (AREA)
  • Electrochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Biochemistry (AREA)
  • Pathology (AREA)
  • Immunology (AREA)
  • General Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Analytical Chemistry (AREA)
  • Paints Or Removers (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Electroplating Methods And Accessories (AREA)

Abstract

PURPOSE:To control the thickness of an electrodepostion film to an optional preset value by a simple control apparatus, by calibrating and controlling a current charge amount along with the specific resistance and the pH of an electrodeposition liquid by utilizing such a fact that electrodeposition efficiency has no relation to the temp. of the electrodeposition liquid. CONSTITUTION:An object 2 to be subject to electrodeposition treatment, a pH and a specific resistance sensors 4, 5 are immersed in an electrodeposition paint liquid in an electrodeposition tank 1 to carry out electrodeposition for a predetermined time according to an electrophoretic method. The relation of an electrodeposition amount and a pH, specific resistance and a liquid temp. during this time is asked to be stored by a controller 7. On the other hand, when the relation of the liquid temp. and electrodeposition efficiency (electrodeposition amount per definite current charge amount) is asked, the electrodeposition efficiency becomes constant regardless of the liquid temp. and, if the current charge amount is controlled, the electrodeposition amount can be controlled. In addition, the relation of the surface area of the object 2 to be treated every a film thickness and the charge amount is stored by the controller 7 and said surface area and a desired film thickness are set to an operation part 9. In the next step, an electrodeposition current is measured by a shunt 6 to be put in an input part 8 along with the measured values of the sensors 4, 5 and added to the stored aforementioned relation in the operation part 9 to control or switch an output current so as to obtain an optimum current charge amount to a set electrodeposition film thickness.
ES521248A 1982-04-06 1983-04-05 A METHOD OF CONTROLLING THE THICKNESS OF AN ELECTROLYTICALLY DEPOSITED COATING. Granted ES521248A0 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57058673A JPS58174597A (en) 1982-04-06 1982-04-06 Method for controlling thickness of electrodeposition film

Publications (2)

Publication Number Publication Date
ES8404067A1 true ES8404067A1 (en) 1984-04-01
ES521248A0 ES521248A0 (en) 1984-04-01

Family

ID=13091096

Family Applications (1)

Application Number Title Priority Date Filing Date
ES521248A Granted ES521248A0 (en) 1982-04-06 1983-04-05 A METHOD OF CONTROLLING THE THICKNESS OF AN ELECTROLYTICALLY DEPOSITED COATING.

Country Status (7)

Country Link
JP (1) JPS58174597A (en)
KR (1) KR890001710B1 (en)
AU (1) AU540359B2 (en)
CA (1) CA1200527A (en)
ES (1) ES521248A0 (en)
FR (1) FR2524496B1 (en)
MX (1) MX159993A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63310996A (en) * 1987-06-10 1988-12-19 Honda Motor Co Ltd Coating method by electrodeposition
JPH059794A (en) * 1991-07-04 1993-01-19 Nissan Motor Co Ltd Method and device for electrodeposition coating
JPH059793A (en) * 1991-07-04 1993-01-19 Nissan Motor Co Ltd Method and device for electrodeposition coating
JP4384825B2 (en) 2001-04-26 2009-12-16 上村工業株式会社 Method for calculating film thickness of electrodeposition coating
DE102009010399A1 (en) 2009-02-26 2010-09-02 Aucos Elektronische Geräte GmbH Hall sensor

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1536975A (en) * 1966-07-18 1968-08-23 Sherwin Williams Co Method and apparatus for controlling and adjusting the characteristics of fluid mixtures

Also Published As

Publication number Publication date
KR840004187A (en) 1984-10-10
KR890001710B1 (en) 1989-05-18
FR2524496B1 (en) 1986-06-06
JPS58174597A (en) 1983-10-13
JPS6234840B2 (en) 1987-07-29
AU540359B2 (en) 1984-11-15
ES521248A0 (en) 1984-04-01
AU1317583A (en) 1983-10-13
MX159993A (en) 1989-10-23
FR2524496A1 (en) 1983-10-07
CA1200527A (en) 1986-02-11

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19971001