| 摘要 |
A continuous-cycle electroplating plant for a plating loose metal items, the plant including a multiplicity of sequentially arranged processing units which comprise at least one pre-treating unit, one or more electroplating units and at least one passivating or coloring unit. Each processing unit comprises a barrel mounted for rotation on a support structure, a spiral rigid with, and extending along and around, the inner side wall of the barrel. Thus, the spiral acts, in use, as a spiral conveyor for moving the metal items from an inlet end of the barrel to its outlet end, and treating means such as a liquid solution for processing the metal items while being moved in the barrel.
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