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GB1077947A - Electrolytic polishing - Google Patents

Electrolytic polishing

Info

Publication number
GB1077947A
GB1077947A GB2274865A GB2274865A GB1077947A GB 1077947 A GB1077947 A GB 1077947A GB 2274865 A GB2274865 A GB 2274865A GB 2274865 A GB2274865 A GB 2274865A GB 1077947 A GB1077947 A GB 1077947A
Authority
GB
United Kingdom
Prior art keywords
acid
phosphoric
electrolytic polishing
sulphuric acid
anodically
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
GB2274865A
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.)
KH Neochem Co Ltd
Original Assignee
Kyowa Hakko Kogyo 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 Kyowa Hakko Kogyo Co Ltd filed Critical Kyowa Hakko Kogyo Co Ltd
Publication of GB1077947A publication Critical patent/GB1077947A/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
    • C25F3/00—Electrolytic etching or polishing
    • C25F3/16—Polishing

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)

Abstract

Metal surfaces are polished anodically using as electrolyte a mixture of phosphoric and sulphuric acid and one of the following namely an acid amide, an amino acid, a cyclic alcohol, and isonicotinic ester e.g. aspartic, or glutamic acid, lysine or glutamine; inositol; methyl isonicotinate. The ratio of phosphoric to sulphuric acid is preferably 1: 1.25 to 1: 3.5 by volume. The process is preferably operated at above 40 DEG C. using a voltage above 7 and a current density over 5 amps / dm2.
GB2274865A 1964-05-29 1965-05-28 Electrolytic polishing Expired GB1077947A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3002464 1964-05-29

Publications (1)

Publication Number Publication Date
GB1077947A true GB1077947A (en) 1967-08-02

Family

ID=12292247

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2274865A Expired GB1077947A (en) 1964-05-29 1965-05-28 Electrolytic polishing

Country Status (3)

Country Link
BE (1) BE664603A (en)
FR (1) FR1434876A (en)
GB (1) GB1077947A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002049569A3 (en) * 2000-12-21 2003-04-10 Glaxo Group Ltd Medicament dispenser with electropolished surfaces

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002049569A3 (en) * 2000-12-21 2003-04-10 Glaxo Group Ltd Medicament dispenser with electropolished surfaces

Also Published As

Publication number Publication date
BE664603A (en) 1965-09-16
FR1434876A (en) 1966-04-08

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