GB1046434A - Electrolytic treatment of steel sheets in an acid chromic anhydride bath - Google Patents

Electrolytic treatment of steel sheets in an acid chromic anhydride bath

Info

Publication number
GB1046434A
GB1046434A GB16966/63A GB1696663A GB1046434A GB 1046434 A GB1046434 A GB 1046434A GB 16966/63 A GB16966/63 A GB 16966/63A GB 1696663 A GB1696663 A GB 1696663A GB 1046434 A GB1046434 A GB 1046434A
Authority
GB
United Kingdom
Prior art keywords
chromic anhydride
steel sheets
electrolytic treatment
acid chromic
anhydride bath
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
GB16966/63A
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.)
Yawata Iron and Steel Co Ltd
Original Assignee
Yawata Iron and Steel 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 Yawata Iron and Steel Co Ltd filed Critical Yawata Iron and Steel Co Ltd
Publication of GB1046434A publication Critical patent/GB1046434A/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)
  • Chemical Treatment Of Metals (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Electroplating And Plating Baths Therefor (AREA)

Abstract

Sheet steel is made corrosion-resistant by electro-deposition using a dilute solution of chromic anhydride containing 10 to 50 g.p. litre and H2SO4 up to 5% of the chromic anhydride present. A current density of 10 to 15 A.S.Dm. is applied at 15 DEG to 50 DEG C for 5 to 10 secs. It is stated that a layer of metallic Cr is formed on which is formed a layer of chromium compound e.g. chromium hydroxide.
GB16966/63A 1962-05-09 1963-04-30 Electrolytic treatment of steel sheets in an acid chromic anhydride bath Expired GB1046434A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1889662 1962-05-09

Publications (1)

Publication Number Publication Date
GB1046434A true GB1046434A (en) 1966-10-26

Family

ID=11984322

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16966/63A Expired GB1046434A (en) 1962-05-09 1963-04-30 Electrolytic treatment of steel sheets in an acid chromic anhydride bath

Country Status (3)

Country Link
US (1) US3296100A (en)
DE (1) DE1521097B2 (en)
GB (1) GB1046434A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2001274A1 (en) * 1969-01-13 1970-07-30 Nippon Kokan Kk Process for the electrolytic treatment of sheet steel in a chromium salt solution
JPS5036223B1 (en) * 1967-03-30 1975-11-21

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3526486A (en) * 1967-02-21 1970-09-01 Nat Steel Corp Corrosion resistant ferrous metal articles and method of preparing the same
US3532608A (en) * 1967-09-29 1970-10-06 United States Steel Corp Method of treating steel and electrolyte therefor
US3755091A (en) * 1969-06-19 1973-08-28 Nat Steel Corp Process for reducing discoloration of electrochemically treated chromium plated ferrous metal strip
US3642587A (en) * 1970-07-06 1972-02-15 United States Steel Corp Chromium electroplating process and product thereof
JPS4893550A (en) * 1972-03-10 1973-12-04
JPS55131198A (en) * 1979-03-30 1980-10-11 Toyo Kohan Co Ltd Electrolytic chromic acid treating steel sheet for adhesion can
FR2465011A1 (en) * 1979-09-06 1981-03-20 Carnaud Sa MATERIAL CONSISTING OF A PROTECTED STEEL SHEET, METHOD FOR MANUFACTURING SAME, AND APPLICATIONS THEREOF, IN PARTICULAR TO PRESERVE BOXES
JPS6041157B2 (en) * 1982-07-20 1985-09-14 川崎製鉄株式会社 Method for manufacturing stain-free steel sheet with excellent retort treatment resistance
JPH0633465B2 (en) * 1986-04-26 1994-05-02 日本パ−カライジング株式会社 Post-treatment method for phosphate car body
ITTO20070704A1 (en) * 2007-10-05 2009-04-06 Create New Technology S R L SYSTEM AND METHOD OF PLATING METAL ALLOYS BY GALVANIC TECHNOLOGY

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2177392A (en) * 1935-12-04 1939-10-24 Mardick John Rice Chromium plating
US3032487A (en) * 1958-05-30 1962-05-01 Yawata Iron & Steel Co Electrolytic treatment of ferrous metal surfaces
US2998361A (en) * 1958-06-11 1961-08-29 Toyo Kohan Co Ltd Electrochemical treatment of metal surfaces and the products thereof
US3081238A (en) * 1958-09-03 1963-03-12 Quaker Chem Corp Electrolytic treatment of metal surfaces
US3113845A (en) * 1960-03-29 1963-12-10 Fuji Iron & Steel Co Ltd Chromium-plated steel

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5036223B1 (en) * 1967-03-30 1975-11-21
DE2001274A1 (en) * 1969-01-13 1970-07-30 Nippon Kokan Kk Process for the electrolytic treatment of sheet steel in a chromium salt solution

Also Published As

Publication number Publication date
DE1521097A1 (en) 1969-07-10
US3296100A (en) 1967-01-03
DE1521097B2 (en) 1975-04-17

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