CA1032031A - Process for reducing the rate of sludge formation in crystalline phosphatizing baths - Google Patents

Process for reducing the rate of sludge formation in crystalline phosphatizing baths

Info

Publication number
CA1032031A
CA1032031A CA225,404A CA225404A CA1032031A CA 1032031 A CA1032031 A CA 1032031A CA 225404 A CA225404 A CA 225404A CA 1032031 A CA1032031 A CA 1032031A
Authority
CA
Canada
Prior art keywords
crystalline
reducing
rate
sludge formation
phosphatizing baths
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
CA225,404A
Other languages
English (en)
French (fr)
Inventor
Dora Smadja
Marie-Therese Decker
Francoise Marceau Derouet
Guy Lorin
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.)
Oxy Metal Industries Corp
Original Assignee
Oxy Metal Industries Corp
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 Oxy Metal Industries Corp filed Critical Oxy Metal Industries Corp
Application granted granted Critical
Publication of CA1032031A publication Critical patent/CA1032031A/en
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

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)
  • Treatment Of Sludge (AREA)
CA225,404A 1974-04-22 1975-04-22 Process for reducing the rate of sludge formation in crystalline phosphatizing baths Expired CA1032031A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7413920A FR2268090B1 (da) 1974-04-22 1974-04-22

Publications (1)

Publication Number Publication Date
CA1032031A true CA1032031A (en) 1978-05-30

Family

ID=9137937

Family Applications (1)

Application Number Title Priority Date Filing Date
CA225,404A Expired CA1032031A (en) 1974-04-22 1975-04-22 Process for reducing the rate of sludge formation in crystalline phosphatizing baths

Country Status (9)

Country Link
US (1) US3977912A (da)
JP (1) JPS5344408B2 (da)
BE (1) BE826184A (da)
CA (1) CA1032031A (da)
DE (1) DE2516469A1 (da)
FR (1) FR2268090B1 (da)
GB (1) GB1485556A (da)
IT (1) IT1032729B (da)
SE (1) SE7504574L (da)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58224172A (ja) * 1982-06-24 1983-12-26 Nippon Parkerizing Co Ltd カチオン電着塗装前処理方法
US4427459A (en) * 1982-01-25 1984-01-24 Pennwalt Corporation Phosphate conversion coatings for metals with reduced coating weights and crystal sizes
US4394184A (en) * 1982-03-26 1983-07-19 Pennwalt Corporation Determination of grain refiners in phosphate conversion coating baths
JPS5967117U (ja) * 1982-07-16 1984-05-07 株式会社吉野工業所 組合わせ化粧用具
JPS5960796U (ja) * 1982-10-14 1984-04-20 アルパイン株式会社 ラジオ受信機付テ−プレコ−ダ
CA1257527A (en) * 1984-12-20 1989-07-18 Thomas W. Tull Cold deformation process employing improved lubrication coating
JPH0328640Y2 (da) * 1985-02-21 1991-06-19
JP2002514687A (ja) * 1998-05-08 2002-05-21 ヘンケル コーポレーション リン酸処理のための組成物と工程、及びそれによって改良された機械的成形性を有する製品
US8092618B2 (en) * 2009-10-21 2012-01-10 Nalco Company Surface passivation technique for reduction of fouling

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2304299A (en) * 1940-05-13 1942-12-08 Boyle Composition for treating metal surfaces preparatory to painting
GB718362A (en) * 1950-03-31 1954-11-10 Pyrene Co Ltd The production of phosphate coatings on metal
US3276916A (en) * 1961-09-22 1966-10-04 Lubrizol Corp Inhibition of corrosion of metal surfaces

Also Published As

Publication number Publication date
FR2268090B1 (da) 1976-10-08
JPS5344408B2 (da) 1978-11-29
JPS50143736A (da) 1975-11-19
IT1032729B (it) 1979-06-20
US3977912A (en) 1976-08-31
GB1485556A (en) 1977-09-14
DE2516469A1 (de) 1975-11-20
FR2268090A1 (da) 1975-11-14
SE7504574L (sv) 1975-10-23
BE826184A (fr) 1975-06-16

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