GB1293883A - Improvements in processes for applying paint by electrophoretic deposition on to ferrous surfaces - Google Patents

Improvements in processes for applying paint by electrophoretic deposition on to ferrous surfaces

Info

Publication number
GB1293883A
GB1293883A GB54971A GB54971A GB1293883A GB 1293883 A GB1293883 A GB 1293883A GB 54971 A GB54971 A GB 54971A GB 54971 A GB54971 A GB 54971A GB 1293883 A GB1293883 A GB 1293883A
Authority
GB
United Kingdom
Prior art keywords
paint
solution
mins
ferrous
phosphate
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
GB54971A
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.)
Henkel Corp
Original Assignee
Amchem Products Inc
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 Amchem Products Inc filed Critical Amchem Products Inc
Publication of GB1293883A publication Critical patent/GB1293883A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
    • B05D1/04—Processes for applying liquids or other fluent materials performed by spraying involving the use of an electrostatic field
    • 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
    • C23C22/14—Orthophosphates containing zinc cations containing also chlorate anions
    • 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
    • C23C22/22—Orthophosphates containing alkaline earth metal 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
    • C23C22/82—After-treatment
    • C23C22/83—Chemical after-treatment
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D13/00—Electrophoretic coating characterised by the process
    • C25D13/20—Pretreatment

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Electrochemistry (AREA)
  • Paints Or Removers (AREA)
  • Chemical Treatment Of Metals (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

1293883 Treating ferrous surfaces; electrodepositing paint AMCHEM PRODUCTS Inc 6 Jan 1971 [6 Jan 1970] 549/71 Headings C7B and C7U A ferrous metal surface is treated with a solution containing between 0À5 and 10 p.p. m. of copper in any soluble form, and is subsequently electro-coated with a light-coloured paint; the pre-treatment with the Cu eliminates irregularities in colour of the paint. The ferrous metal may be treated only with an aqueous solution of a Cu salt, such as the nitrate, acetate, or chloride, but is preferably phosphatized in which case the copper solution treatment is before, during, or after phosphating. Preferably the surface is contacted with a Cu-containing phosphate solution which is either (a) a "coating phosphate" solution of pH 1À8 to 3À5, free acidity 0À3 to 10, and total acidity 5 to 100, which contains an oxidant for ferrous ion or (b) a "non-coating" phosphate solution based on NaH 2 PO 4 , e.g. 2-20 g/l, and containing an accelerator, e.g. 0À05-0À5 g/l Na molybdate, either (a) or (b) being applied by spraying for 1-2 mins. at 60-70‹C., or immersion for 2-5 mins. at 65-76‹C., and desirably being followed by a rinse in a trivalent and/or hexavalent Cr solution. The electro-phoretic paint is a conventional paint containing methacrylic, acrylic, alkyd, melamine, or epoxy resin or a mixture thereof as anionic resins, and may have a solids content of 8-17 wt per cent, pH 7À5-9À5 and be deposited at 15-36‹C. for 30 sec - 5 min. at 50-450V and 1À08-108A/m<SP>2</SP>. Deposition is followed by mixing, e.g. with water and curing, e.g. at 148-205‹C, for 20-30 mins. The process eliminates blotches and stains from light-coloured, particularly white, paint, and where the Cu content of the solution is high, tends to impart a faint bluish tinge to the paint. Specific phosphating solutions (which may also contain Cu) contain (1) NaH 2 PO 4 , Na molybdate, wetting agent, aralic acid and NaF and (2) Zinc, H 2 PO 4 <SP>-</SP>, NaClO 4 , NaNO 2 , and Ni.
GB54971A 1970-01-06 1971-01-06 Improvements in processes for applying paint by electrophoretic deposition on to ferrous surfaces Expired GB1293883A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US105670A 1970-01-06 1970-01-06

Publications (1)

Publication Number Publication Date
GB1293883A true GB1293883A (en) 1972-10-25

Family

ID=21694174

Family Applications (1)

Application Number Title Priority Date Filing Date
GB54971A Expired GB1293883A (en) 1970-01-06 1971-01-06 Improvements in processes for applying paint by electrophoretic deposition on to ferrous surfaces

Country Status (8)

Country Link
JP (1) JPS5248097B1 (en)
BE (1) BE761228A (en)
CA (1) CA950402A (en)
DE (1) DE2100497A1 (en)
ES (1) ES387039A1 (en)
FR (1) FR2075951B1 (en)
GB (1) GB1293883A (en)
NL (1) NL7100013A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2266895A (en) * 1992-05-15 1993-11-17 Wednesbury Diecasting And Meta Priming surfaces to receive electrophoretic paint coatings
EP2787100A1 (en) * 2013-04-02 2014-10-08 Matthias Koch Method for producing a coated metal substrate and the coated metal substrate obtainable by this process
CN113818018A (en) * 2021-07-14 2021-12-21 南京科润工业介质股份有限公司 Surface conditioning agent for metal substrate and surface treatment method of metal substrate
CN114381786A (en) * 2020-10-20 2022-04-22 海安南京大学高新技术研究院 Preparation method of high-wear-resistance and high-corrosion-resistance protective coating on neodymium iron boron surface

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19511573A1 (en) * 1995-03-29 1996-10-02 Henkel Kgaa Process for phosphating with metal-containing rinsing
DE19834796A1 (en) 1998-08-01 2000-02-03 Henkel Kgaa Process for phosphating, rinsing and cathodic electrocoating
CN114134554A (en) * 2021-10-27 2022-03-04 山东鲁玉减震系统技术有限公司 Electrophoretic coating production method

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1287413B (en) * 1965-11-06 1969-01-16 Metallgesellschaft Ag Process for preparing steel for electrophoretic coating with paints

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2266895A (en) * 1992-05-15 1993-11-17 Wednesbury Diecasting And Meta Priming surfaces to receive electrophoretic paint coatings
GB2266895B (en) * 1992-05-15 1996-12-04 Wednesbury Diecasting And Meta Improvements relating to electrophoretic coatings
EP2787100A1 (en) * 2013-04-02 2014-10-08 Matthias Koch Method for producing a coated metal substrate and the coated metal substrate obtainable by this process
CN114381786A (en) * 2020-10-20 2022-04-22 海安南京大学高新技术研究院 Preparation method of high-wear-resistance and high-corrosion-resistance protective coating on neodymium iron boron surface
CN114381786B (en) * 2020-10-20 2023-10-31 海安南京大学高新技术研究院 Preparation method of high-wear-resistance high-corrosion-resistance protective coating on surface of neodymium iron boron
CN113818018A (en) * 2021-07-14 2021-12-21 南京科润工业介质股份有限公司 Surface conditioning agent for metal substrate and surface treatment method of metal substrate
CN113818018B (en) * 2021-07-14 2024-02-09 南京科润工业介质股份有限公司 Surface regulator for metal substrate and surface treatment method of metal substrate

Also Published As

Publication number Publication date
DE2100497A1 (en) 1971-09-16
BE761228A (en) 1971-06-16
NL7100013A (en) 1971-07-08
ES387039A1 (en) 1973-05-01
JPS5248097B1 (en) 1977-12-07
CA950402A (en) 1974-07-02
FR2075951A1 (en) 1971-10-15
FR2075951B1 (en) 1973-12-28

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Legal Events

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PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee