ES316454A1 - Metal coating process - Google Patents

Metal coating process

Info

Publication number
ES316454A1
ES316454A1 ES0316454A ES316454A ES316454A1 ES 316454 A1 ES316454 A1 ES 316454A1 ES 0316454 A ES0316454 A ES 0316454A ES 316454 A ES316454 A ES 316454A ES 316454 A1 ES316454 A1 ES 316454A1
Authority
ES
Spain
Prior art keywords
zinc
phosphate
solution
amps
zinc 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
ES0316454A
Other languages
Spanish (es)
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.)
CONTINENTALE PARKER
Original Assignee
CONTINENTALE PARKER
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 CONTINENTALE PARKER filed Critical CONTINENTALE PARKER
Publication of ES316454A1 publication Critical patent/ES316454A1/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/34—Pretreatment of metallic surfaces to be electroplated
    • C25D5/36—Pretreatment of metallic surfaces to be electroplated of iron or steel
    • 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
    • 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)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Chemical Treatment Of Metals (AREA)

Abstract

A method of treating a ferrous surface comprises forming a zinc phosphate coating thereon and then making the coated surface a cathode in a zinc phosphate solution so that zinc is deposited thereupon. The phosphate coating may be formed by dipping in a zinc phosphate bath, e.g. suspended from an electrically conducting support so that current may be switched on through the support and both processes carried out in the same bath or by spraying with zinc phosphate solution and subsequently dipping the ferrous article in the reservoir of the spray solution where it is brought into contact with an electrical conductor, thereby effecting the deposition of the zinc. The phosphate solution may contain 0.5-3.0% w/v phosphate, calculated as PO4, and have a free phosphoric acid content of 0.3 to 0.8%. Electrolytic deposition of the zinc preferably takes place at a temperature of 70 DEG -160 DEG F. and using a current density of below 30 Amps/sq. ft., preferably 5-15 Amps/sq. ft.
ES0316454A 1964-08-13 1965-08-12 Metal coating process Expired ES316454A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB33074/64A GB1041761A (en) 1964-08-13 1964-08-13 Improvements in the coating of metals

Publications (1)

Publication Number Publication Date
ES316454A1 true ES316454A1 (en) 1965-12-01

Family

ID=10348205

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0316454A Expired ES316454A1 (en) 1964-08-13 1965-08-12 Metal coating process

Country Status (8)

Country Link
US (1) US3449222A (en)
BE (1) BE667625A (en)
CH (1) CH442920A (en)
DE (1) DE1496915A1 (en)
DK (1) DK118699B (en)
ES (1) ES316454A1 (en)
GB (1) GB1041761A (en)
NL (1) NL6510617A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5230728A (en) * 1975-09-05 1977-03-08 Nippon Steel Corp Production method of zinc plated steel plate
JPS6046197B2 (en) * 1978-09-16 1985-10-15 日本ペイント株式会社 Post-treatment method for phosphate film
DE3262272D1 (en) * 1981-03-17 1985-03-28 Rasselstein Ag Process for the galvanic deposit of a zinc-nickel-alloy layer on a metal object, in particular on steel strip
JPS60211080A (en) * 1984-04-04 1985-10-23 Nippon Paint Co Ltd Treatment with zinc phosphate by immersion
JPS6148597A (en) * 1984-08-14 1986-03-10 Nippon Paint Co Ltd Chemical conversion treatment giving zinc phosphate
DE3780859T2 (en) * 1986-05-14 1993-02-11 Nippon Steel Corp SURFACE TREATED STEEL MATERIAL, ESPECIALLY GALVANIZED STEEL SHEET.
JP3479609B2 (en) 1999-03-02 2003-12-15 日本パーカライジング株式会社 Sludge-free zinc phosphate treatment liquid and zinc phosphate treatment method
DE10348251A1 (en) * 2003-10-16 2005-05-12 Bosch Gmbh Robert Electrolytic process for phosphating metal surfaces and phosphated metal layer
DE102006035974A1 (en) * 2006-08-02 2008-02-07 Robert Bosch Gmbh Process for phosphating a metal layer
KR20110033212A (en) * 2008-06-18 2011-03-30 메사추세츠 인스티튜트 오브 테크놀로지 Catalytic materials, electrodes, and systems for water electrolysis and other electrochemical techniques

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1007069A (en) * 1910-11-25 1911-10-31 Thomas Watts Coslett Treatment of iron or steel to prevent the oxidation or rusting thereof.
US1856261A (en) * 1929-01-26 1932-05-03 Gen Motors Corp Coating surfaces of iron or steel
US2056399A (en) * 1932-07-16 1936-10-06 Mead Res Engineering Company Coating process and coated article
US2132438A (en) * 1933-12-11 1938-10-11 American Chem Paint Co Method of coating metal
US2125387A (en) * 1936-10-02 1938-08-02 Pittsburgh Plate Glass Co Protective coating
US2412543A (en) * 1941-07-03 1946-12-10 Parker Rust Proof Co Coated zinc article and method of making same

Also Published As

Publication number Publication date
CH442920A (en) 1967-08-31
NL6510617A (en) 1966-02-14
DK118699B (en) 1970-09-21
GB1041761A (en) 1966-09-07
US3449222A (en) 1969-06-10
DE1496915A1 (en) 1969-11-13
BE667625A (en) 1965-11-16

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