IT992935B - PROCEDURE FOR THE PREPARATION OF PHOSPHATIC COATINGS ON IRON AND STEEL - Google Patents

PROCEDURE FOR THE PREPARATION OF PHOSPHATIC COATINGS ON IRON AND STEEL

Info

Publication number
IT992935B
IT992935B IT2781973A IT2781973A IT992935B IT 992935 B IT992935 B IT 992935B IT 2781973 A IT2781973 A IT 2781973A IT 2781973 A IT2781973 A IT 2781973A IT 992935 B IT992935 B IT 992935B
Authority
IT
Italy
Prior art keywords
phosphatic
coatings
iron
procedure
steel
Prior art date
Application number
IT2781973A
Other languages
Italian (it)
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
Application granted granted Critical
Publication of IT992935B publication Critical patent/IT992935B/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
    • C23C22/05—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
    • C23C22/12—Orthophosphates containing zinc cations
    • C23C22/13—Orthophosphates containing zinc cations containing also nitrate or nitrite anions

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)
IT2781973A 1972-08-16 1973-08-13 PROCEDURE FOR THE PREPARATION OF PHOSPHATIC COATINGS ON IRON AND STEEL IT992935B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722240049 DE2240049B2 (en) 1972-08-16 1972-08-16 PROCESS FOR THE PRODUCTION OF PHOSPHATE COATINGS ON IRON AND STEEL AND CONCENTRATES FOR THE PRODUCTION AND ADDITION OF THE PHOSPHATIZING SOLUTION USED IN THIS SITE

Publications (1)

Publication Number Publication Date
IT992935B true IT992935B (en) 1975-09-30

Family

ID=5853587

Family Applications (1)

Application Number Title Priority Date Filing Date
IT2781973A IT992935B (en) 1972-08-16 1973-08-13 PROCEDURE FOR THE PREPARATION OF PHOSPHATIC COATINGS ON IRON AND STEEL

Country Status (10)

Country Link
AT (1) AT321054B (en)
BE (1) BE799692A (en)
BR (1) BR7305895D0 (en)
DE (1) DE2240049B2 (en)
ES (1) ES417921A1 (en)
FR (1) FR2196397B1 (en)
GB (1) GB1383285A (en)
IT (1) IT992935B (en)
NL (1) NL171600C (en)
SE (1) SE387666B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3939014A (en) * 1974-11-20 1976-02-17 Amchem Products, Inc. Aqueous zinc phosphating solution and method of rapid coating of steel for deforming
DE2540685C2 (en) * 1975-09-12 1985-06-27 Metallgesellschaft Ag, 6000 Frankfurt Process for the production of phosphate coatings
DE3712339A1 (en) * 1987-04-11 1988-10-20 Metallgesellschaft Ag METHOD FOR PHOSPHATIZING BEFORE ELECTROPLATING

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2048665A1 (en) * 1970-10-03 1972-04-06 Metallgesellschaft Ag Phosphating of steel using a preliminary coat using concentrated solu

Also Published As

Publication number Publication date
BR7305895D0 (en) 1974-05-16
NL171600C (en) 1983-04-18
ES417921A1 (en) 1976-03-16
FR2196397B1 (en) 1975-12-26
DE2240049B2 (en) 1977-05-12
FR2196397A1 (en) 1974-03-15
DE2240049A1 (en) 1974-02-28
NL171600B (en) 1982-11-16
GB1383285A (en) 1974-02-12
BE799692A (en) 1973-09-17
SE387666B (en) 1976-09-13
NL7309853A (en) 1974-02-19
AT321054B (en) 1975-03-10

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