METHOD OF ELECTROCHEMICAL POLISHING OF GOLD-BASED ALLOYS BY PULSATING BIPOLAR CURRENT Russian patent published in 2006 - IPC C25F3/16 

Abstract RU 2288978 C2

FIELD: electrochemical methods of finishing surfaces; electrochemical polishing of complex profiled surfaces.

SUBSTANCE: proposed method includes electrochemical polishing in electrolyte containing thiocarbamide and sulfuric acid at temperature of 18-25°C for 20-60 s by pulsating bipolar current of rectangular shape at duration of anode pulse of (0.2-3.0)·10-3 s, duration of interval between anode and cathode pulses of (0.5-3.0)·10-3 s, duration of cathode pulse of (0.2-3.0)·10-3, duration of interval between cathode and anode pulses of (0.53.0)·10-3 s at amplitude of anode current density of (1-5) A/cm2 and amplitude of cathode current of (0.5-5) A/cm2.

EFFECT: reduced power requirements.

2 ex

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RU 2 288 978 C2

Authors

Galanin Sergej Il'Ich

Dates

2006-12-10Published

2004-04-30Filed