As the new millennium approaches, attention to improved quality and excellence must be the priority of every hard chrome plater. The purification of hard chrome plating solution is an important contributor to these goals. Chrome bath purification enhances the performance of the bath by eliminating inconsistencies that can arise as a result of the contamination of dissolved metallic cations. As these cations build up in the bath, different problems associated with the conductive nature of the bath become apparent. Voltages are gradually turned up, plating times get longer, and the quality of parts decreases. Eventually the problems become so severe that the bath must be dumped and replaced by a fresh, clean solution. An innovation in ion exchange technology is available to effect chrome bath purification. Known as the reciprocating flow ion exchange technique, it has been developed and implemented to improve product quality, eliminate bath dumps, and aid in the reduction of power costs by maintaining a clean, conductive bath solution at all times. Purification of hard chrome plating solutions using this technique has been utilized for years to achieve these better bath performance characteristics.
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