CA2022728A1 - Process of producing phosphate coating on metals - Google Patents

Process of producing phosphate coating on metals

Info

Publication number
CA2022728A1
CA2022728A1 CA2022728A CA2022728A CA2022728A1 CA 2022728 A1 CA2022728 A1 CA 2022728A1 CA 2022728 A CA2022728 A CA 2022728A CA 2022728 A CA2022728 A CA 2022728A CA 2022728 A1 CA2022728 A1 CA 2022728A1
Authority
CA
Canada
Prior art keywords
phosphating solution
calculated
alkali metal
metals
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.)
Granted
Application number
CA2022728A
Other languages
French (fr)
Other versions
CA2022728C (en
Inventor
Horst Gehmecker
Dieter Hauffe
Dirk Meyer
Gerhard Muller
Werner Rausch
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.)
Chemetall GmbH
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
Publication of CA2022728A1 publication Critical patent/CA2022728A1/en
Application granted granted Critical
Publication of CA2022728C publication Critical patent/CA2022728C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • C23C22/18—Orthophosphates containing manganese cations
    • C23C22/182—Orthophosphates containing manganese cations containing also zinc cations
    • C23C22/184—Orthophosphates containing manganese cations containing also zinc cations containing also nickel cations
    • 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
    • C23C22/16—Orthophosphates containing zinc cations containing also peroxy-compounds
    • 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
    • C23C22/34—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 fluorides or complex fluorides
    • C23C22/36—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 fluorides or complex fluorides containing also phosphates
    • C23C22/362—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 fluorides or complex fluorides containing also phosphates containing also zinc cations
    • 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
    • C23C22/73—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 characterised by the process
    • C23C22/77—Controlling or regulating of the coating process

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)
  • Materials For Medical Uses (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

In a process for phosphating iron and steel surfaces according to the low-zinc technology, a nitrite-free aqueous acidic phosphating solution of 30 to 65 DEG C is used which contains 0.4 to 1.7 g/l of Zn 7 to 25 g/l of P2O5 2 to 30 g/l of NO3 and in which the weight ratio of free P2O5 to total P2O5 is adjusted to a value in the range from 0.04 to 0.20. H2O2 or alkali metal perborate is added to the phosphating solution in an amount such that - in the incorporated state - its maximum peroxide concentration is 17 mg/l, preferably 8 mg/l (calculated as H2O2), or its maximum Fe(II) concentration is 60 mg/l, preferably 30 mg/l (calculated as Fe). It is particularly advantageous to control the addition of H2O2 and/or alkali metal perborate according to the electrochemical potential determined with a redox electrode. The phosphating solution may additionally contain Mn, Ni, Co, Mg and/or Ca or fluoroborate, fluorosilicate and/or fluoride. The process can be used in particular for the preparation of metal surfaces for coating. <IMAGE>
CA002022728A 1989-08-22 1990-08-06 Process of producing phosphate coating on metals Expired - Fee Related CA2022728C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3927614A DE3927614A1 (en) 1989-08-22 1989-08-22 METHOD OF GENERATING PHOSPHATURE SUPPLIES ON METALS
DEP3927614.7 1989-08-22

Publications (2)

Publication Number Publication Date
CA2022728A1 true CA2022728A1 (en) 1991-02-23
CA2022728C CA2022728C (en) 2000-02-01

Family

ID=6387566

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002022728A Expired - Fee Related CA2022728C (en) 1989-08-22 1990-08-06 Process of producing phosphate coating on metals

Country Status (11)

Country Link
EP (1) EP0414296B1 (en)
JP (1) JP2992619B2 (en)
AT (1) ATE91159T1 (en)
BR (1) BR9004117A (en)
CA (1) CA2022728C (en)
DD (1) DD299662A5 (en)
DE (2) DE3927614A1 (en)
ES (1) ES2042199T3 (en)
PL (1) PL286572A1 (en)
PT (1) PT95053B (en)
ZA (1) ZA906673B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5797987A (en) * 1995-12-14 1998-08-25 Ppg Industries, Inc. Zinc phosphate conversion coating compositions and process
US6461450B1 (en) 1998-03-02 2002-10-08 Henkel Kommanditgesellschaft Fur Aktien Method for controlling the coating weight for strip-phosphating

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3219453B2 (en) * 1992-03-17 2001-10-15 日本パーカライジング株式会社 Manufacturing method of galvanized steel sheet with excellent blackening resistance
DE4243214A1 (en) * 1992-12-19 1994-06-23 Metallgesellschaft Ag Process for the production of phosphate coatings
JPH0790614A (en) * 1993-09-22 1995-04-04 Elna Co Ltd Aluminum or aluminum alloys and their chemical conversion treatment
EP0813620A4 (en) * 1995-03-07 1998-02-25 Henkel Corp Composition and process for forming an underpaint coating on metals
US5888315A (en) * 1995-03-07 1999-03-30 Henkel Corporation Composition and process for forming an underpaint coating on metals
DE19523919A1 (en) * 1995-06-30 1997-01-02 Metallgesellschaft Ag Process for supplementing phosphating solution
DE19544614A1 (en) 1995-11-30 1997-06-05 Metallgesellschaft Ag Process for phosphating metal surfaces
WO1999048819A1 (en) * 1998-03-25 1999-09-30 Henkel Kommanditgesellschaft Auf Aktien Treatment of waste water during phosphating
DE10118552A1 (en) * 2001-04-14 2002-10-17 Henkel Kgaa Determination and optionally regulation of accelerator concentration in zinc phosphonating solution for steel, zinc (alloy)-plated steel and aluminum (alloy) uses biochemical hydrogen peroxide sensor giving electrical signal

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1796218B1 (en) * 1968-09-23 1971-10-07 Metallgesellschaft Ag METAL PHOSPHATING METHOD
GB1585057A (en) * 1976-06-28 1981-02-25 Ici Ltd Sensing concentration of coating solution
JPS5811513B2 (en) * 1979-02-13 1983-03-03 日本ペイント株式会社 How to protect metal surfaces
JPS6043491A (en) * 1983-08-19 1985-03-08 Nippon Denso Co Ltd Formation of phosphate film on iron and steel surfaces
JPS63270478A (en) * 1986-12-09 1988-11-08 Nippon Denso Co Ltd Phosphating method
DE3712339A1 (en) * 1987-04-11 1988-10-20 Metallgesellschaft Ag METHOD FOR PHOSPHATIZING BEFORE ELECTROPLATING

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5797987A (en) * 1995-12-14 1998-08-25 Ppg Industries, Inc. Zinc phosphate conversion coating compositions and process
US5868874A (en) * 1995-12-14 1999-02-09 Ppg Industries, Inc. Zinc phosphate conversion coating compositions and process
US6461450B1 (en) 1998-03-02 2002-10-08 Henkel Kommanditgesellschaft Fur Aktien Method for controlling the coating weight for strip-phosphating

Also Published As

Publication number Publication date
DE3927614A1 (en) 1991-02-28
EP0414296A1 (en) 1991-02-27
ZA906673B (en) 1992-04-29
EP0414296B1 (en) 1993-06-30
PT95053A (en) 1991-04-18
JPH0387374A (en) 1991-04-12
BR9004117A (en) 1991-09-03
DE59001884D1 (en) 1993-08-05
DD299662A5 (en) 1992-04-30
JP2992619B2 (en) 1999-12-20
PL286572A1 (en) 1992-02-10
ES2042199T3 (en) 1993-12-01
CA2022728C (en) 2000-02-01
ATE91159T1 (en) 1993-07-15
PT95053B (en) 1997-04-30

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Legal Events

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