JPS563677A - Method and apparatus for controlling chemical treating fluid - Google Patents

Method and apparatus for controlling chemical treating fluid

Info

Publication number
JPS563677A
JPS563677A JP7716279A JP7716279A JPS563677A JP S563677 A JPS563677 A JP S563677A JP 7716279 A JP7716279 A JP 7716279A JP 7716279 A JP7716279 A JP 7716279A JP S563677 A JPS563677 A JP S563677A
Authority
JP
Japan
Prior art keywords
soln
chemical treating
tank
detecting
electrode
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.)
Pending
Application number
JP7716279A
Other languages
Japanese (ja)
Inventor
Hitoshi Oka
Kenji Nakamura
Ataru Yokono
Tokio Isogai
Akira Matsuo
Osamu Miyazawa
Isamu Tanaka
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP7716279A priority Critical patent/JPS563677A/en
Publication of JPS563677A publication Critical patent/JPS563677A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/73—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals characterised by the process
    • C23C22/77—Controlling or regulating of the coating process
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F1/00—Etching metallic material by chemical means

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Treatment Of Metals (AREA)
  • ing And Chemical Polishing (AREA)

Abstract

PURPOSE:To make possible the automatic control of chemical treating soln., by detecting the difference in potential between a standard soln. and a mixed soln. of a chemical treating soln. with a titrating soln., which has a constant concn. and is used for detecting the concn. of a prescribed component, then by replenishing the chemical treating soln. corresponding to the deficient concn. CONSTITUTION:For example, a standard soln. (0.1 normal hydrochloric acid) is sampled from a standard soln. tank 1 by a sampling pump 4 and is delivered to the reference electrode 16 side of a detecting cell 10. A titrating soln. (136g HCOONa is dissolved in water to prepare 1l soln.) and a chemical treating soln. (1.2 normal hydrochloric acid) are sampled respectively from a titrating soln. tank 2 and a chemical treating soln. tank 3 by the sampling pump 4, mixed in a mixer 9 and the mixture is delivered to the detecting electrode 15 of the detecting cell 10, where the pH is detected as a potential by means of a silver-silver chloride electrode (a reference electrode) and a tungsten electrode (a detecting electrode) and is fed to a control unit 8. When the potential of the mixed soln. is smaller than -70mV which corresponds to the pH4.7, it is fed to a magnetic valve 6 so as to open it, and a replenish soln. (12 normal hydrochloric acid) is replenished from a replenish soln. tank 7 to the treating soln. tank 3.
JP7716279A 1979-06-19 1979-06-19 Method and apparatus for controlling chemical treating fluid Pending JPS563677A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7716279A JPS563677A (en) 1979-06-19 1979-06-19 Method and apparatus for controlling chemical treating fluid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7716279A JPS563677A (en) 1979-06-19 1979-06-19 Method and apparatus for controlling chemical treating fluid

Publications (1)

Publication Number Publication Date
JPS563677A true JPS563677A (en) 1981-01-14

Family

ID=13626082

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7716279A Pending JPS563677A (en) 1979-06-19 1979-06-19 Method and apparatus for controlling chemical treating fluid

Country Status (1)

Country Link
JP (1) JPS563677A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58120791A (en) * 1982-01-07 1983-07-18 コミンコ・リミテツド Control of metal electrodeposition using electrolyte containing two polarizing agents
JPS6060707U (en) * 1983-10-03 1985-04-27 エスエムケイ株式会社 Optical fiber fixing structure
JPS60184684A (en) * 1984-02-29 1985-09-20 Nippon Parkerizing Co Ltd Control method for zinc phosphate-based film conversion treatment solution
EP1431424A3 (en) * 2002-12-19 2007-03-28 Dainippon Screen Mfg. Co., Ltd. Plating apparatus and plating method
US10670551B2 (en) 2015-08-25 2020-06-02 Imperial College Of Science, Technology And Medicine System and method for voltage measurements on biological tissues

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58120791A (en) * 1982-01-07 1983-07-18 コミンコ・リミテツド Control of metal electrodeposition using electrolyte containing two polarizing agents
JPS6060707U (en) * 1983-10-03 1985-04-27 エスエムケイ株式会社 Optical fiber fixing structure
JPS60184684A (en) * 1984-02-29 1985-09-20 Nippon Parkerizing Co Ltd Control method for zinc phosphate-based film conversion treatment solution
EP1431424A3 (en) * 2002-12-19 2007-03-28 Dainippon Screen Mfg. Co., Ltd. Plating apparatus and plating method
US10670551B2 (en) 2015-08-25 2020-06-02 Imperial College Of Science, Technology And Medicine System and method for voltage measurements on biological tissues

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