FR1147796A - Procédé pour conserver l'efficacité des bains de phosphatation à température ambiante - Google Patents

Procédé pour conserver l'efficacité des bains de phosphatation à température ambiante

Info

Publication number
FR1147796A
FR1147796A FR1147796DA FR1147796A FR 1147796 A FR1147796 A FR 1147796A FR 1147796D A FR1147796D A FR 1147796DA FR 1147796 A FR1147796 A FR 1147796A
Authority
FR
France
Prior art keywords
maintaining
efficiency
room temperature
phosphating baths
phosphating
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
Application number
Other languages
English (en)
French (fr)
Inventor
Paolo De Cerma
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Montedison SpA
Original Assignee
Montedison SpA
Montecatini Societa Generale per lIndustria Mineraria e Chimica SpA
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 Montedison SpA, Montecatini Societa Generale per lIndustria Mineraria e Chimica SpA filed Critical Montedison SpA
Application granted granted Critical
Publication of FR1147796A publication Critical patent/FR1147796A/fr
Expired legal-status Critical Current

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)
FR1147796D 1955-04-20 1956-04-19 Procédé pour conserver l'efficacité des bains de phosphatation à température ambiante Expired FR1147796A (fr)

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
FR1147796A true FR1147796A (fr) 1957-11-29

Family

ID=61187843

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1147796D Expired FR1147796A (fr) 1955-04-20 1956-04-19 Procédé pour conserver l'efficacité des bains de phosphatation à température ambiante

Country Status (8)

Country Link
US (1) US2863793A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
BE (1) BE547125A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CH (1) CH343201A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE1069451B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR1147796A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
IT (1) IT532546A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
LU (1) LU34317A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NL (1) NL206455A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1176446B (de) * 1961-12-07 1964-08-20 Hoechst Ag Verfahren und Mittel zum Aufbringen von Phosphatschichten auf Metalloberflaechen
AT282285B (de) * 1965-12-22 1970-06-25 Plaut Fa J Zinkphosphatüberzüge
US3516875A (en) * 1966-06-11 1970-06-23 Hooker Chemical Corp Process for coating ferrous surfaces
IT1111586B (it) * 1979-03-16 1986-01-13 Parker Italiana Composizioni protettive per superfici d'acciaio e processo per la loro preparazione

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 (de) * 1943-01-15 1954-04-29 Hoechst Ag Verfahren zur Herstellung von Sulfonsaeuren
DE900163C (de) * 1943-07-01 1953-12-21 Metallgesellschaft Ag Phosphatierverfahren
DE900162C (de) * 1943-07-01 1953-12-21 Metallgesellschaft Ag Phosphatierverfahren
DE859843C (de) * 1949-02-28 1952-12-15 Metallgesellschaft Ag Verfahren zur Phosphatierung von Metallen

Also Published As

Publication number Publication date
IT532546A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1900-01-01
BE547125A (fr) 1956-05-15
US2863793A (en) 1958-12-09
LU34317A1 (fr) 1956-06-19
NL206455A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1900-01-01
CH343201A (de) 1959-12-15
DE1069451B (de) 1959-11-19

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