LU34317A1 - METHOD FOR MAINTAINING THE EFFECTIVENESS OF PHOSPHATING BATHS AT AMBIENT TEMPERATURE - Google Patents

METHOD FOR MAINTAINING THE EFFECTIVENESS OF PHOSPHATING BATHS AT AMBIENT TEMPERATURE

Info

Publication number
LU34317A1
LU34317A1 LU34317DA LU34317A1 LU 34317 A1 LU34317 A1 LU 34317A1 LU 34317D A LU34317D A LU 34317DA LU 34317 A1 LU34317 A1 LU 34317A1
Authority
LU
Luxembourg
Prior art keywords
effectiveness
maintaining
ambient temperature
phosphating baths
phosphating
Prior art date
Application number
Other languages
French (fr)
Original Assignee
Montecatini Soc. Gen. Per L'industria Mineraria E Chimica
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 Montecatini Soc. Gen. Per L'industria Mineraria E Chimica filed Critical Montecatini Soc. Gen. Per L'industria Mineraria E Chimica
Publication of LU34317A1 publication Critical patent/LU34317A1/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)
LU34317D 1955-04-20 1956-04-19 METHOD FOR MAINTAINING THE EFFECTIVENESS OF PHOSPHATING BATHS AT AMBIENT TEMPERATURE LU34317A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US2863793XA 1955-04-20 1955-04-20
IT343201X 1955-04-20
IT1147796X 1955-04-20
US578592A US2863793A (en) 1955-04-20 1956-04-17 Method of maintaining the efficiency of phosphate coating baths used at room temperature

Publications (1)

Publication Number Publication Date
LU34317A1 true LU34317A1 (en) 1956-06-19

Family

ID=61187843

Family Applications (1)

Application Number Title Priority Date Filing Date
LU34317D LU34317A1 (en) 1955-04-20 1956-04-19 METHOD FOR MAINTAINING THE EFFECTIVENESS OF PHOSPHATING BATHS AT AMBIENT TEMPERATURE

Country Status (8)

Country Link
US (1) US2863793A (en)
BE (1) BE547125A (en)
CH (1) CH343201A (en)
DE (1) DE1069451B (en)
FR (1) FR1147796A (en)
IT (1) IT532546A (en)
LU (1) LU34317A1 (en)
NL (1) NL206455A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1176446B (en) * 1961-12-07 1964-08-20 Hoechst Ag Method and means for applying phosphate layers to metal surfaces
AT282285B (en) * 1965-12-22 1970-06-25 Plaut Fa J Zinc phosphate coatings
US3516875A (en) * 1966-06-11 1970-06-23 Hooker Chemical Corp Process for coating ferrous surfaces
IT1111586B (en) * 1979-03-16 1986-01-13 Parker Italiana PROTECTIVE COMPOSITIONS FOR STEEL SURFACES AND PROCESS FOR THEIR PREPARATION

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2315605A (en) * 1942-06-29 1943-04-06 Hugo J Ehrenfeld Venetian blind structure
DE910165C (en) * 1943-01-15 1954-04-29 Hoechst Ag Process for the production of sulphonic acids
DE900163C (en) * 1943-07-01 1953-12-21 Metallgesellschaft Ag Phosphating process
DE900162C (en) * 1943-07-01 1953-12-21 Metallgesellschaft Ag Phosphating process
DE859843C (en) * 1949-02-28 1952-12-15 Metallgesellschaft Ag Process for the phosphating of metals

Also Published As

Publication number Publication date
CH343201A (en) 1959-12-15
NL206455A (en) 1900-01-01
IT532546A (en) 1900-01-01
US2863793A (en) 1958-12-09
BE547125A (en) 1956-05-15
DE1069451B (en) 1959-11-19
FR1147796A (en) 1957-11-29

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