SE433363B - FOSFATERINGSFORFARANDE - Google Patents

FOSFATERINGSFORFARANDE

Info

Publication number
SE433363B
SE433363B SE7604663A SE7604663A SE433363B SE 433363 B SE433363 B SE 433363B SE 7604663 A SE7604663 A SE 7604663A SE 7604663 A SE7604663 A SE 7604663A SE 433363 B SE433363 B SE 433363B
Authority
SE
Sweden
Prior art keywords
zinc phosphate
phosphating
oxidant
metal surfaces
phosphate solution
Prior art date
Application number
SE7604663A
Other languages
Swedish (sv)
Other versions
SE7604663L (en
Inventor
M Brock
B A Cooke
Original Assignee
Ici 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
Priority claimed from GB16799/75A external-priority patent/GB1557779A/en
Application filed by Ici Ltd filed Critical Ici Ltd
Publication of SE7604663L publication Critical patent/SE7604663L/en
Publication of SE433363B publication Critical patent/SE433363B/en

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

Abstract

A method of controlling a continuous process of phosphating metal surfaces in which an acidic zinc phosphate solution is brought to the steady state and there maintained in response to conductivity change, as phosphating proceeds, by addition of replenishments (a) acidic zinc phosphate and (b) alkali metal ion in a definite ratio of addition rates. Preferably the zinc phosphate solution also comprises chlorate and optionally nitrate ions as depolarising oxidant. Preferably with ferrous metal surfaces is also added a rapid-acting oxidant to maintain ferrous ion at low concentration.
SE7604663A 1975-04-23 1976-04-22 FOSFATERINGSFORFARANDE SE433363B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB16799/75A GB1557779A (en) 1975-04-23 1975-04-23 Phosphating process
GB328876 1976-01-28

Publications (2)

Publication Number Publication Date
SE7604663L SE7604663L (en) 1976-10-24
SE433363B true SE433363B (en) 1984-05-21

Family

ID=26238198

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7604663A SE433363B (en) 1975-04-23 1976-04-22 FOSFATERINGSFORFARANDE

Country Status (12)

Country Link
JP (1) JPS51129828A (en)
AR (1) AR220509A1 (en)
AU (1) AU507110B2 (en)
BR (1) BR7602508A (en)
CA (1) CA1090236A (en)
DE (1) DE2617820A1 (en)
ES (1) ES447267A1 (en)
FR (1) FR2308696A1 (en)
HU (1) HU173469B (en)
IT (1) IT1063238B (en)
MX (1) MX3306E (en)
SE (1) SE433363B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2009253B (en) * 1977-11-29 1982-06-23 Ici Ltd Coating process
JPS60184684A (en) * 1984-02-29 1985-09-20 Nippon Parkerizing Co Ltd Controlling method of chemical conversion treatment solution for zinc phosphate film
JPS60238486A (en) * 1984-05-09 1985-11-27 Nippon Denso Co Ltd Formation of phosphate conversion coating on steel surface

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3333988A (en) * 1965-12-16 1967-08-01 Phosphate coating process
US3674672A (en) * 1970-03-25 1972-07-04 Hooker Chemical Corp Multiparameter process solution analyzer-controller
BE788795A (en) * 1971-09-20 1973-01-02 Parker Ste Continentale PROCESS FOR FORMING A PHOSPHATE COATING ON A METAL SURFACE
GB1376310A (en) * 1973-04-27 1974-12-04 Pyrene Chemical Services Ltd Phosphating of metals
GB1374568A (en) * 1973-04-27 1974-11-20 Pyrene Chemical Services Ltd Production of phosphate coatings on metals

Also Published As

Publication number Publication date
BR7602508A (en) 1976-10-19
SE7604663L (en) 1976-10-24
MX3306E (en) 1980-09-08
FR2308696A1 (en) 1976-11-19
AU1324876A (en) 1977-10-27
FR2308696B1 (en) 1980-05-30
CA1090236A (en) 1980-11-25
IT1063238B (en) 1985-02-11
AU507110B2 (en) 1980-02-07
JPS51129828A (en) 1976-11-11
AR220509A1 (en) 1980-11-14
DE2617820A1 (en) 1976-11-04
HU173469B (en) 1979-05-28
ES447267A1 (en) 1977-10-16

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