METHOD FOR ELECTROCHEMICAL TREATMENT OF BLANKS Russian patent published in 2001 - IPC

FIELD: making one or more through openings in metallic blanks by means of apparatus for electrochemical treatment. SUBSTANCE: method comprises steps of applying onto blank surface (from which electrode of apparatus for electrochemical treatment comes out) additionary layer consisting of polymeric structure including organic and non-organic fragments. It prevents rounding of boundary between formed openings and surface from which electrode of apparatus comes out. Polymeric structure having silica, zirconium and carbon containing fragments joined with polymeric structure trough Sic links allow to use such method for making foil and grids for shaving. EFFECT: enlarged using range of method. 6 cl, 3 dwg