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GB1041761A - Improvements in the coating of metals - Google Patents

Improvements in the coating of metals

Info

Publication number
GB1041761A
GB1041761A GB33074/64A GB3307464A GB1041761A GB 1041761 A GB1041761 A GB 1041761A GB 33074/64 A GB33074/64 A GB 33074/64A GB 3307464 A GB3307464 A GB 3307464A GB 1041761 A GB1041761 A GB 1041761A
Authority
GB
United Kingdom
Prior art keywords
zinc
phosphate
solution
amps
coating
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
GB33074/64A
Inventor
Dennis Brian Freeman
Peter Burden
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.)
Pyrene Co Ltd
Original Assignee
Pyrene Co Ltd
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 Pyrene Co Ltd filed Critical Pyrene Co Ltd
Priority to GB33074/64A priority Critical patent/GB1041761A/en
Priority to FR26441A priority patent/FR1456643A/en
Priority to BE667625D priority patent/BE667625A/xx
Priority to CH1077665A priority patent/CH442920A/en
Priority to DE19651496915 priority patent/DE1496915A1/en
Priority to DK414265AA priority patent/DK118699B/en
Priority to ES0316454A priority patent/ES316454A1/en
Priority to US479313A priority patent/US3449222A/en
Priority to NL6510617A priority patent/NL6510617A/xx
Publication of GB1041761A publication Critical patent/GB1041761A/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)
  • Chemical Treatment Of Metals (AREA)
  • Application Of Or Painting With Fluid Materials (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.
GB33074/64A 1964-08-13 1964-08-13 Improvements in the coating of metals Expired GB1041761A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
GB33074/64A GB1041761A (en) 1964-08-13 1964-08-13 Improvements in the coating of metals
FR26441A FR1456643A (en) 1964-08-13 1965-07-29 Advanced process for coating metal surfaces
BE667625D BE667625A (en) 1964-08-13 1965-07-29
CH1077665A CH442920A (en) 1964-08-13 1965-07-30 Advanced process for coating metal surfaces
DE19651496915 DE1496915A1 (en) 1964-08-13 1965-08-05 Process for applying a zinc phosphate coating containing metallic zinc to an iron surface
DK414265AA DK118699B (en) 1964-08-13 1965-08-12 Method for applying a zinc phosphate coating containing metallic zinc to an iron surface and optionally finishing with a lacquer.
ES0316454A ES316454A1 (en) 1964-08-13 1965-08-12 Metal coating process
US479313A US3449222A (en) 1964-08-13 1965-08-12 Metal coating process
NL6510617A NL6510617A (en) 1964-08-13 1965-08-13

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
GB1041761A true GB1041761A (en) 1966-09-07

Family

ID=10348205

Family Applications (1)

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

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)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5541930A (en) * 1978-09-16 1980-03-25 Nippon Paint Co Ltd After-treatment method of phosphate film
JPS60211080A (en) * 1984-04-04 1985-10-23 Nippon Paint Co Ltd Treatment with zinc phosphate by immersion

Families Citing this family (8)

* 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
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
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
BRPI0915418A2 (en) * 2008-06-18 2017-06-27 Massachusetts Inst Technology 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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5541930A (en) * 1978-09-16 1980-03-25 Nippon Paint Co Ltd After-treatment method of phosphate film
JPS60211080A (en) * 1984-04-04 1985-10-23 Nippon Paint Co Ltd Treatment with zinc phosphate by immersion

Also Published As

Publication number Publication date
DK118699B (en) 1970-09-21
CH442920A (en) 1967-08-31
NL6510617A (en) 1966-02-14
BE667625A (en) 1965-11-16
ES316454A1 (en) 1965-12-01
US3449222A (en) 1969-06-10
DE1496915A1 (en) 1969-11-13

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