GB1466851A - Electrochemical etching - Google Patents

Electrochemical etching

Info

Publication number
GB1466851A
GB1466851A GB2359873A GB2359873A GB1466851A GB 1466851 A GB1466851 A GB 1466851A GB 2359873 A GB2359873 A GB 2359873A GB 2359873 A GB2359873 A GB 2359873A GB 1466851 A GB1466851 A GB 1466851A
Authority
GB
United Kingdom
Prior art keywords
stencil
pressure plate
underside
placing
chemical etching
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
GB2359873A
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.)
PRYOR SON LD E
Original Assignee
PRYOR SON LD E
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 PRYOR SON LD E filed Critical PRYOR SON LD E
Priority to GB2359873A priority Critical patent/GB1466851A/en
Publication of GB1466851A publication Critical patent/GB1466851A/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
    • C25F3/02—Etching
    • C25F3/14—Etching locally
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
    • C25F7/00—Constructional parts, or assemblies thereof, of cells for electrolytic removal of material from objects; Servicing or operating

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)
  • Printing Plates And Materials Therefor (AREA)

Abstract

1466851 Selective electro-chemical etching EDWARD PRYOR & SON Ltd 7 May 1974 [17 May 1973] 23598/73 Heading C7B A method of electro-chemical etching includes the steps of making a stencil apertured to define the mark desired, the apertures having side walls which, in a plane transverse to the direction in which they extend, diverge from the underside at 10-70 degrees, placing the underside in contact with a metallic surface, placing a felt pad 16 moistened with electrolyte over the stencil, compressing the pad by a graphite pressure plate 18 and applying an electric current by means of the pressure plate through the electrolyte. The stencil may be of synthetic plastics, e.g. polyester. For application to a curved surface, the stencil and pressure plate may be correspondingly curved Fig. 5, (not shown).
GB2359873A 1974-05-07 1974-05-07 Electrochemical etching Expired GB1466851A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2359873A GB1466851A (en) 1974-05-07 1974-05-07 Electrochemical etching

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2359873A GB1466851A (en) 1974-05-07 1974-05-07 Electrochemical etching

Publications (1)

Publication Number Publication Date
GB1466851A true GB1466851A (en) 1977-03-09

Family

ID=10198261

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2359873A Expired GB1466851A (en) 1974-05-07 1974-05-07 Electrochemical etching

Country Status (1)

Country Link
GB (1) GB1466851A (en)

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee