GB1199089A - A Method of Electrolytically Treating Metal Articles - Google Patents

A Method of Electrolytically Treating Metal Articles

Info

Publication number
GB1199089A
GB1199089A GB55619/68A GB5561968A GB1199089A GB 1199089 A GB1199089 A GB 1199089A GB 55619/68 A GB55619/68 A GB 55619/68A GB 5561968 A GB5561968 A GB 5561968A GB 1199089 A GB1199089 A GB 1199089A
Authority
GB
United Kingdom
Prior art keywords
nov
borate
strip
rollers
metal articles
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
GB55619/68A
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.)
JFE Engineering Corp
Original Assignee
Nippon Kokan 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 Nippon Kokan Ltd filed Critical Nippon Kokan Ltd
Publication of GB1199089A publication Critical patent/GB1199089A/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
    • C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
    • C25D11/38—Chromatising

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electroplating Methods And Accessories (AREA)

Abstract

1,199,089. Electrolytic coating. NIPPON KOKAN K.K. Nov.22, 1968 [Nov.22, 1967], No.55619/68. Heading C7B. A metal article e.g. a flexible strip 5 is treated in an aqueous electrolyte 2 containing hexavalent chromium ions (e.g. 3-50 g/l) and borate ions (e.g. 5-50 g/l), preferably added as chromic and boric acid or anhydride or alkali metal or ammonium (di) chromate and borate e.g. sodium dichromate and borax, first as an anode, then immediately as a cathode, e.g. by passing successively between pairs of plate cathodes 6 and anodes 7 and over conductor rollers 3 and 8 and deflector rollers 4 as shown, to improve the corrosion resistance of the article surface. The anodic and cathodic treatment can be each for only 0À2-10 seconds and thus applied to the continuous process of treating moving bars, wires, pipes or sheets. The strip may be of degreased and pickled steel, Al or Sn plated steel or galvanized.
GB55619/68A 1967-11-22 1968-11-22 A Method of Electrolytically Treating Metal Articles Expired GB1199089A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7476167 1967-11-22

Publications (1)

Publication Number Publication Date
GB1199089A true GB1199089A (en) 1970-07-15

Family

ID=13556567

Family Applications (1)

Application Number Title Priority Date Filing Date
GB55619/68A Expired GB1199089A (en) 1967-11-22 1968-11-22 A Method of Electrolytically Treating Metal Articles

Country Status (2)

Country Link
US (1) US3772165A (en)
GB (1) GB1199089A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2407273A1 (en) * 1977-10-31 1979-05-25 Toyo Kohan Co Ltd TIN-FREE STEEL PRE-TREATMENT PROCESS FOR THE MANUFACTURE OF TIN CANS
FR2463198A1 (en) * 1979-08-09 1981-02-20 Toyo Kohan Co Ltd PROCESS FOR PRETREATING STEEL WITHOUT TINNING THROUGH ANODIC TREATMENT IN AN ELECTROLYTE WITH PH HAS MORE THAN 8
FR2540521A1 (en) * 1983-02-04 1984-08-10 Nouel Jean Marie Process for producing a matt or semi-matt chromium-containing deposit on a ferrous metal, and product obtained
EP0332872A2 (en) * 1988-02-27 1989-09-20 Nkk Corporation Method for manufacturing electrolytically chromated steel sheet

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4050997A (en) * 1972-12-18 1977-09-27 Maschinenfabrik Augsburg-Nurnberg Aktiengesellschaft Method of manufacturing a fiber reinforced composite material
US3901771A (en) * 1973-07-11 1975-08-26 Inland Steel Co One-side electrocoating
US3970537A (en) * 1973-07-11 1976-07-20 Inland Steel Company Electrolytic treating apparatus
JPS5425894B2 (en) * 1975-02-04 1979-08-31
US4082620A (en) * 1977-04-29 1978-04-04 Bell Telephone Laboratories, Incorporated Process for chromating metallic surfaces
JPS5825758B2 (en) * 1979-11-22 1983-05-30 日本鋼管株式会社 Steel plate for welded painted cans
US4579633A (en) * 1983-05-26 1986-04-01 Kawasaki Steel Corporation Method of producing tin-free steel sheets
IT1214691B (en) * 1986-07-14 1990-01-18 Centro Speriment Metallurg PERFECTED STEEL SHEET FOR FOOD PACKAGING AND PROCEDURE FOR ITS PRODUCTION
US5595707A (en) 1990-03-02 1997-01-21 Ventana Medical Systems, Inc. Automated biological reaction apparatus
US5182172A (en) * 1991-04-18 1993-01-26 Bausch & Lomb Incorporated Post-plating passivation treatment
US20040222105A1 (en) * 2003-04-25 2004-11-11 Heimann Robert L. Method for preparing and using silicate systems to treat electrically conductive surfaces and products obtained therefrom
JP5323677B2 (en) * 2007-03-02 2013-10-23 古河電気工業株式会社 Method and apparatus for producing surface roughened copper plate, and surface roughened copper plate
EP3786319B1 (en) * 2015-01-26 2023-08-09 Toyo Kohan Co., Ltd. Method for producing surface-treated steel plate

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2780592A (en) * 1951-08-22 1957-02-05 Bethlehem Steel Corp Electrolytic treatment of metal surfaces
US3400058A (en) * 1965-09-21 1968-09-03 Boeing Co Electrochemical process for andic coating of metal surfaces
US3296106A (en) * 1966-01-12 1967-01-03 Nat Steel Corp Method of cathodically treating metallic surfaces
US3479260A (en) * 1966-03-07 1969-11-18 Bethlehem Steel Corp Treatment for ferrous surfaces

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2407273A1 (en) * 1977-10-31 1979-05-25 Toyo Kohan Co Ltd TIN-FREE STEEL PRE-TREATMENT PROCESS FOR THE MANUFACTURE OF TIN CANS
FR2463198A1 (en) * 1979-08-09 1981-02-20 Toyo Kohan Co Ltd PROCESS FOR PRETREATING STEEL WITHOUT TINNING THROUGH ANODIC TREATMENT IN AN ELECTROLYTE WITH PH HAS MORE THAN 8
FR2540521A1 (en) * 1983-02-04 1984-08-10 Nouel Jean Marie Process for producing a matt or semi-matt chromium-containing deposit on a ferrous metal, and product obtained
EP0332872A2 (en) * 1988-02-27 1989-09-20 Nkk Corporation Method for manufacturing electrolytically chromated steel sheet
EP0332872A3 (en) * 1988-02-27 1990-01-31 Nkk Corporation Method for manufacturing electrolytically chromated steel sheet

Also Published As

Publication number Publication date
US3772165A (en) 1973-11-13

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee