GB539424A - Method and apparatus for electrically pickling stainless steels - Google Patents

Method and apparatus for electrically pickling stainless steels

Info

Publication number
GB539424A
GB539424A GB412040A GB412040A GB539424A GB 539424 A GB539424 A GB 539424A GB 412040 A GB412040 A GB 412040A GB 412040 A GB412040 A GB 412040A GB 539424 A GB539424 A GB 539424A
Authority
GB
United Kingdom
Prior art keywords
electrodes
strip
electrolyte
stainless steel
copper
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
GB412040A
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.)
Sharon Steel Corp
Original Assignee
Sharon 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 Sharon Steel Corp filed Critical Sharon Steel Corp
Priority to GB412040A priority Critical patent/GB539424A/en
Publication of GB539424A publication Critical patent/GB539424A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
    • C25F1/00—Electrolytic cleaning, degreasing, pickling or descaling
    • C25F1/02—Pickling; Descaling
    • C25F1/04—Pickling; Descaling in solution
    • C25F1/06—Iron or steel

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

539,424. Electrolytically pickling stainless steel strip. DEHN, F. B. (Sharon Steel Corporation). March 5, 1940, No. 4120. [Class 41] Stainless steel strip 12, is electrolytically pickled by passage through an electrolyte, e.g. 2 to 20 per cent. nitric acid and/or sulphuric acid, or caustic soda in proximity to electrodes P, M supplied as from a direct current generator so that some of the current flows from the electrode P, through electrolyte, through the strip 12 and again through the electrolyte to the other electrode M. The strip 12 may be adjustably tensioned to sag to half the depth of the electrolyte so that the upper and lower surfaces receive similar treatment. The electrodes may be of stainless steel arranged vertically and the anode may be in sections to facilitate replacement. In modifications the strip may be traversed on each side of a pair of electrodes ; or between two or more electrodes ; a separate generator may be used with each pair of multiple electrodes. Plating may also be effected, e.g. copper plating of stainless steel, using copper anodes and a solution of copper sulphate and sulphuric acid.
GB412040A 1940-03-05 1940-03-05 Method and apparatus for electrically pickling stainless steels Expired GB539424A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB412040A GB539424A (en) 1940-03-05 1940-03-05 Method and apparatus for electrically pickling stainless steels

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB412040A GB539424A (en) 1940-03-05 1940-03-05 Method and apparatus for electrically pickling stainless steels

Publications (1)

Publication Number Publication Date
GB539424A true GB539424A (en) 1941-09-10

Family

ID=9771128

Family Applications (1)

Application Number Title Priority Date Filing Date
GB412040A Expired GB539424A (en) 1940-03-05 1940-03-05 Method and apparatus for electrically pickling stainless steels

Country Status (1)

Country Link
GB (1) GB539424A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0814180A1 (en) * 1996-06-19 1997-12-29 Keramchemie GmbH Process for treating stainless steel surfaces

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0814180A1 (en) * 1996-06-19 1997-12-29 Keramchemie GmbH Process for treating stainless steel surfaces

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