CA933484A - Reduction of discoloration of electrochemically treated chromium electroplated ferrous metal strip - Google Patents

Reduction of discoloration of electrochemically treated chromium electroplated ferrous metal strip

Info

Publication number
CA933484A
CA933484A CA082661A CA82661A CA933484A CA 933484 A CA933484 A CA 933484A CA 082661 A CA082661 A CA 082661A CA 82661 A CA82661 A CA 82661A CA 933484 A CA933484 A CA 933484A
Authority
CA
Canada
Prior art keywords
discoloration
reduction
metal strip
ferrous metal
electrochemically treated
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
CA082661A
Inventor
W. Austin Lowell
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.)
NATIONAL STEEL Corp
Original Assignee
NATIONAL STEEL Corp
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 NATIONAL STEEL Corp filed Critical NATIONAL STEEL Corp
Application granted granted Critical
Publication of CA933484A publication Critical patent/CA933484A/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
    • C25D5/48—After-treatment of electroplated surfaces

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)
CA082661A 1969-06-19 1970-05-13 Reduction of discoloration of electrochemically treated chromium electroplated ferrous metal strip Expired CA933484A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US83487269A 1969-06-19 1969-06-19

Publications (1)

Publication Number Publication Date
CA933484A true CA933484A (en) 1973-09-11

Family

ID=25268029

Family Applications (1)

Application Number Title Priority Date Filing Date
CA082661A Expired CA933484A (en) 1969-06-19 1970-05-13 Reduction of discoloration of electrochemically treated chromium electroplated ferrous metal strip

Country Status (2)

Country Link
US (1) US3755091A (en)
CA (1) CA933484A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3849206A (en) * 1973-01-02 1974-11-19 Combustion Eng Densification of hard chrome plated surfaces
US3904491A (en) * 1973-10-12 1975-09-09 Nat Steel Corp Controlling electrolyte concentration in electrolytic and rinsing treatment of chrome plated steel strip
GB1599537A (en) * 1978-04-06 1981-10-07 Ibm Method for brightening an electroplated chromium deposit
JPS55131198A (en) * 1979-03-30 1980-10-11 Toyo Kohan Co Ltd Electrolytic chromic acid treating steel sheet for adhesion can
CN107868965B (en) * 2016-09-26 2019-05-28 宝山钢铁股份有限公司 A method of for controlling chromium plating surface of steel plate amount of chromium oxide

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2438013A (en) * 1940-07-22 1948-03-16 Patents Corp Treated steel sheet and process
US2746915A (en) * 1951-10-15 1956-05-22 Autoyre Co Inc Electrolytic metal treatment and article
US3113845A (en) * 1960-03-29 1963-12-10 Fuji Iron & Steel Co Ltd Chromium-plated steel
BE621885A (en) * 1961-09-05
US3296100A (en) * 1962-05-09 1967-01-03 Yawata Iron & Steel Co Process for producing anticorrosive surface treated steel sheets and product thereof
BE635457A (en) * 1962-08-16
US3323881A (en) * 1963-11-29 1967-06-06 Inland Steel Co Ferrous base coated with zinc and chromium
US3498892A (en) * 1966-05-04 1970-03-03 M & T Chemicals Inc Electrodeposition of chromium upon a continuous metal strip
US3526486A (en) * 1967-02-21 1970-09-01 Nat Steel Corp Corrosion resistant ferrous metal articles and method of preparing the same
US3567599A (en) * 1967-06-21 1971-03-02 Inland Steel Co Electrochemical treatment of ferrous metal
CA954821A (en) * 1967-11-03 1974-09-17 United States Steel Corporation Chromium electroplating process and product thereof
US3642587A (en) * 1970-07-06 1972-02-15 United States Steel Corp Chromium electroplating process and product thereof

Also Published As

Publication number Publication date
US3755091A (en) 1973-08-28

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