GB2157446B - Control of fluoride in solutions for treatment of metals - Google Patents
Control of fluoride in solutions for treatment of metalsInfo
- Publication number
- GB2157446B GB2157446B GB8509374A GB8509374A GB2157446B GB 2157446 B GB2157446 B GB 2157446B GB 8509374 A GB8509374 A GB 8509374A GB 8509374 A GB8509374 A GB 8509374A GB 2157446 B GB2157446 B GB 2157446B
- Authority
- GB
- United Kingdom
- Prior art keywords
- fluoride
- metals
- solutions
- treatment
- control
- 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
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)
Applications Claiming Priority (1)
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 |
Publications (3)
Publication Number | Publication Date |
---|---|
GB8509374D0 GB8509374D0 (en) | 1985-05-15 |
GB2157446A GB2157446A (en) | 1985-10-23 |
GB2157446B true GB2157446B (en) | 1987-12-23 |
Family
ID=6233447
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8509374A Expired GB2157446B (en) | 1984-04-13 | 1985-04-12 | Control of fluoride in solutions for treatment of metals |
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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3681207A (en) * | 1970-12-28 | 1972-08-01 | Hooker Chemical Corp | Metal coating process |
AU6250373A (en) * | 1972-11-16 | 1975-05-15 | Avesta Jernverks Ab | Potentiometric determination using membrane electrode |
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 |
-
1984
- 1984-04-13 DE DE19843413905 patent/DE3413905A1/en not_active Withdrawn
-
1985
- 1985-04-04 EP EP85200521A patent/EP0162489A1/en not_active Withdrawn
- 1985-04-11 AU AU41034/85A patent/AU4103485A/en not_active Abandoned
- 1985-04-12 JP JP7822785A patent/JPS60251280A/en active Pending
- 1985-04-12 GB GB8509374A patent/GB2157446B/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
EP0162489A1 (en) | 1985-11-27 |
AU4103485A (en) | 1985-10-17 |
GB8509374D0 (en) | 1985-05-15 |
DE3413905A1 (en) | 1985-10-24 |
JPS60251280A (en) | 1985-12-11 |
GB2157446A (en) | 1985-10-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |