Method for controlling organic micelle size in nickel-plating solution

摘要

A process for controlling the micelle size distribution of an alkylene oxide dispersion in a nickel-plating electrolyte is used to maintain the electrolyte in a condition suitable for producing nickel coatings having a uniform satin finish in which finish characteristics such as roughness depth are maintained within desired limits. The process involves steps of removing a portion of the electrolyte from the electroplating bath, filtering the alkylene oxide from the electrolyte removed from the electroplating bath, adding alkylene oxide to the electroplating bath, and returning the filtered electrolyte to the electroplating bath. The process removes larger alkylene oxide micelles from the electrolyte and replaces them with smaller micelles to maintain a desired micelle size distribution.