Patent ID: 6319385
Filing Date: 2001-11-20
Classification: C25D

Abstract:
An improved process for electrochemically depositing a surface coating, wherein a component is subjected to a galvanic bath and the surface coating is deposited on the component with an outer surface topography, by forming a plurality of island formations of deposition material on a surface of the component by providing an electrical waveform as a source of electrical energy, and causing a growth of the deposition material on the plurality of island formations for forming the outer surface topography with a follow-up waveform as the source of electrical energy during a growth working period, the improvement which comprises:increasing a strength of a current density of the electrical waveform during the step of forming the plurality of island formations in a plurality of steps with a waiting period between respective step increases of the plurality of steps of 0.1 to 30 seconds, the current density of the electrical waveform being changed in an amount from 1 to 6 mA/cm.sup.2 per step.