Peculiarities of chromium deposition with application of an induction-capacitance device

Abstract

The experimental data obtained at various parameters of an inductance-capacitor device are presented. It is possible to change the kinetics and efficiency of the chromium plating process by varying the inductance L and the capacity C of the device while keeping the other conditions of the electrolysis identical.

The Dependence of Properties of the Electroplated Coatings on the Spectrum of the Variable Components of the Current (Voltage)

“…Thus, during the deposition of chromium coatings using a 3-phase power supply in the standard electrolyte (i k -5,5 kA/m 2 , I -25 A) and at L opt = 0,119 mH, С opt = 0,024mF, the current efficiency increases by 1.5-1.6 times, which attests to a substantial change in the electrochemical process [12].…”

“…This type of power sources (60W) were selected for the purpose of conducting the tests during recording the polarization curves, spectra and coating deposition on the samples, ment for other kinds of tests at currents close in value. With an increase in the VC current the efficiency of the ICD application also increases, enhances and, simultaneously, decreases the necessity of using high inductance [12], and the voltage drop in the device is up to 5% from the total value.…”

“…The ICD parameters affect as well the structure of copper and nickel coatings deposited using various power sources [11,12,[14][15][16][17][18].…”

“…The necessary capacity was ensured by a parallel connection of electrolytic condensers, and mainly in the experiments the condenser capacity was C = 2200 mkF. For the deposition of the coating we used, as a rule, a single-phase, three-phase, six-phase and 60W switching power sources, as well as a lead accumulator [10][11][12][13][14][15].…”