AU4103485A - Maintaining fluoride activity in chromating and phosphating baths - Google Patents

Maintaining fluoride activity in chromating and phosphating baths

Info

Publication number
AU4103485A
AU4103485A AU41034/85A AU4103485A AU4103485A AU 4103485 A AU4103485 A AU 4103485A AU 41034/85 A AU41034/85 A AU 41034/85A AU 4103485 A AU4103485 A AU 4103485A AU 4103485 A AU4103485 A AU 4103485A
Authority
AU
Australia
Prior art keywords
chromating
phosphating baths
fluoride activity
maintaining
maintaining fluoride
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.)
Abandoned
Application number
AU41034/85A
Inventor
Joachim Albrecht
Klaus Bittner
Klaus Wittel
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.)
GEA Group AG
Original Assignee
Metallgesellschaft AG
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 Metallgesellschaft AG filed Critical Metallgesellschaft AG
Publication of AU4103485A publication Critical patent/AU4103485A/en
Abandoned 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Treatment Of Metals (AREA)
AU41034/85A 1984-04-13 1985-04-11 Maintaining fluoride activity in chromating and phosphating baths Abandoned AU4103485A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843413905 DE3413905A1 (en) 1984-04-13 1984-04-13 METHOD FOR MONITORING FLUORIDE-CONTAINING BATHS FOR THE SURFACE TREATMENT OF METALS
DE3413905 1984-04-13

Publications (1)

Publication Number Publication Date
AU4103485A true AU4103485A (en) 1985-10-17

Family

ID=6233447

Family Applications (1)

Application Number Title Priority Date Filing Date
AU41034/85A Abandoned AU4103485A (en) 1984-04-13 1985-04-11 Maintaining fluoride activity in chromating and phosphating baths

Country Status (5)

Country Link
EP (1) EP0162489A1 (en)
JP (1) JPS60251280A (en)
AU (1) AU4103485A (en)
DE (1) DE3413905A1 (en)
GB (1) GB2157446B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3631759A1 (en) * 1986-09-18 1988-03-31 Metallgesellschaft Ag METHOD FOR PRODUCING PHOSPHATE COATINGS ON METAL SURFACES
JP3181658B2 (en) * 1992-01-13 2001-07-03 日本パーカライジング株式会社 Determination method of effective fluorine concentration in acid chemical conversion treatment of metallic materials
US5454882A (en) * 1992-01-13 1995-10-03 Henkel Corporation Process for controlling a fluoride containing conversion coating forming composition during its use for conversion coating aluminum containing metal
JP2786075B2 (en) * 1993-04-23 1998-08-13 日本ペイント株式会社 Activity control device for zinc phosphate treatment solution

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3681207A (en) * 1970-12-28 1972-08-01 Hooker Chemical Corp Metal coating process
DE2356965A1 (en) * 1972-11-16 1974-05-22 Avesta Jernverks Ab PROCEDURE FOR DETERMINING THE CONCENTRATIONS OF HYDROFLUORIC ACID AND HYDROGEN IONS IN Aqueous SOLUTIONS OF STRONG ACIDS AND ELECTRODE FOR CARRYING OUT THE PROCEDURE
JPS5599062A (en) * 1979-01-25 1980-07-28 Nippon Steel Corp Concentration measurement of pickling solution containing hydrofluoric acid
JPS6022067B2 (en) * 1982-09-30 1985-05-30 日本パ−カライジング株式会社 Method for forming film on metal surface

Also Published As

Publication number Publication date
JPS60251280A (en) 1985-12-11
GB2157446B (en) 1987-12-23
EP0162489A1 (en) 1985-11-27
DE3413905A1 (en) 1985-10-24
GB8509374D0 (en) 1985-05-15
GB2157446A (en) 1985-10-23

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