GB915426A - Electrolytic treatment of metal surfaces - Google Patents

Electrolytic treatment of metal surfaces

Info

Publication number
GB915426A
GB915426A GB18128/59A GB1812859A GB915426A GB 915426 A GB915426 A GB 915426A GB 18128/59 A GB18128/59 A GB 18128/59A GB 1812859 A GB1812859 A GB 1812859A GB 915426 A GB915426 A GB 915426A
Authority
GB
United Kingdom
Prior art keywords
metal
metal surfaces
steel
phosphate
electrolytic treatment
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
GB18128/59A
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 GB915426A publication Critical patent/GB915426A/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)
  • Electroplating Methods And Accessories (AREA)

Abstract

915,426. Protecting metal surfaces electrolytically. YAWATA IRON & STEEL CO. Ltd. May 27, 1959 [May 30, 1958], No. 18128/59. Class 41. Metal surfaces are protected and made corrosion-resistant by treating cathodically with an electrolyte containing chromic anhydride, phosphoric acid and either Zn, Mg, Mn or Ca ions, e.g. added as oxides to form a phosphate. It is stated that the protective coating includes metal phosphate and chromium chromate formed by reducing action of hydrogen generated at the metal surface. Electrolysis is effected at 10-300 A.S.F. at 10‹ to 80‹ C. for about 1 second. The treated metal surface which may be of steel, non-ferrous metal or zinc-coated metal, is then dried in a current of air at 100‹ to 200‹ C. for a few minutes.
GB18128/59A 1958-05-30 1959-05-27 Electrolytic treatment of metal surfaces Expired GB915426A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1498258 1958-05-30

Publications (1)

Publication Number Publication Date
GB915426A true GB915426A (en) 1963-01-09

Family

ID=11876154

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18128/59A Expired GB915426A (en) 1958-05-30 1959-05-27 Electrolytic treatment of metal surfaces

Country Status (3)

Country Link
US (1) US3118824A (en)
DE (1) DE1228119B (en)
GB (1) GB915426A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1031792A (en) * 1962-01-20 1966-06-02 Yawata Iron & Steel Co Method of chemically treating metals by electrolysis
GB1044962A (en) * 1962-06-13 1966-10-05 Yawata Iron & Steel Co Producing a protective coating on metal by cathodic coating
NL129365C (en) * 1962-11-10
US3526486A (en) * 1967-02-21 1970-09-01 Nat Steel Corp Corrosion resistant ferrous metal articles and method of preparing the same
JPS5912755B2 (en) 1981-06-04 1984-03-26 日本金属株式会社 Stainless steel surface treatment method
US4617095A (en) * 1985-06-24 1986-10-14 Omi International Corporation Electrolytic post treatment of chromium substrates

Family Cites Families (4)

* 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.
US2780592A (en) * 1951-08-22 1957-02-05 Bethlehem Steel Corp Electrolytic treatment of metal surfaces
US2746915A (en) * 1951-10-15 1956-05-22 Autoyre Co Inc Electrolytic metal treatment and article
FR1080914A (en) * 1953-06-16 1954-12-14 United States Steel Corp Electrochemical process for coating steel surfaces, products intended for its implementation and resulting products

Also Published As

Publication number Publication date
US3118824A (en) 1964-01-21
DE1228119B (en) 1966-11-03

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