CH629539A5 - Method for reducing crust formation during the phosphating treatment of metals - Google Patents

Method for reducing crust formation during the phosphating treatment of metals Download PDF

Info

Publication number
CH629539A5
CH629539A5 CH607877A CH607877A CH629539A5 CH 629539 A5 CH629539 A5 CH 629539A5 CH 607877 A CH607877 A CH 607877A CH 607877 A CH607877 A CH 607877A CH 629539 A5 CH629539 A5 CH 629539A5
Authority
CH
Switzerland
Prior art keywords
phosphating
solution
metals
poly
crust formation
Prior art date
Application number
CH607877A
Other languages
German (de)
English (en)
Inventor
Claus Dr Christ
Joachim Dr Kandler
Original Assignee
Hoechst 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 Hoechst Ag filed Critical Hoechst Ag
Publication of CH629539A5 publication Critical patent/CH629539A5/de

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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
    • C23C22/05—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 using aqueous solutions
    • C23C22/06—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 using aqueous solutions using aqueous acidic solutions with pH less than 6
    • C23C22/07—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 using aqueous solutions using aqueous acidic solutions with pH less than 6 containing phosphates
    • C23C22/08—Orthophosphates

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)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
CH607877A 1976-05-19 1977-05-16 Method for reducing crust formation during the phosphating treatment of metals CH629539A5 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19762622276 DE2622276A1 (de) 1976-05-19 1976-05-19 Verfahren zur phosphatierung von metallen

Publications (1)

Publication Number Publication Date
CH629539A5 true CH629539A5 (en) 1982-04-30

Family

ID=5978389

Family Applications (1)

Application Number Title Priority Date Filing Date
CH607877A CH629539A5 (en) 1976-05-19 1977-05-16 Method for reducing crust formation during the phosphating treatment of metals

Country Status (12)

Country Link
AR (1) AR212770A1 (xx)
BR (1) BR7703193A (xx)
CH (1) CH629539A5 (xx)
DE (1) DE2622276A1 (xx)
DK (1) DK217377A (xx)
ES (1) ES458765A1 (xx)
FR (1) FR2352069A1 (xx)
IT (1) IT1084699B (xx)
NL (1) NL7705325A (xx)
NO (1) NO771743L (xx)
PT (1) PT66563B (xx)
SE (1) SE7705874L (xx)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4417965A1 (de) * 1994-05-21 1995-11-23 Henkel Kgaa Eisenphosphatierung unter Verwendung von substituierten Monocarbonsäuren

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3136663A (en) * 1960-10-24 1964-06-09 Kelite Corp Compositions and methods for preservation of metals
DE2211256C2 (de) * 1972-03-09 1982-12-02 Hoechst Ag, 6000 Frankfurt Verfahren zur Herstellung von Poly-α-oxy-acrylsäure
GB1549856A (en) * 1975-06-20 1979-08-08 Ici Ltd Phosphating process

Also Published As

Publication number Publication date
DE2622276A1 (de) 1977-12-08
NO771743L (no) 1977-11-22
SE7705874L (sv) 1977-11-20
IT1084699B (it) 1985-05-28
PT66563B (fr) 1979-01-22
BR7703193A (pt) 1978-01-31
FR2352069B1 (xx) 1981-07-24
AR212770A1 (es) 1978-09-29
DK217377A (da) 1977-11-20
ES458765A1 (es) 1978-03-16
PT66563A (fr) 1977-06-01
NL7705325A (nl) 1977-11-22
FR2352069A1 (fr) 1977-12-16

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Legal Events

Date Code Title Description
PL Patent ceased