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Technology improvement of copper plating on the constituents of internal crusher gauges
Bisenija M. Petroviæ
The copper is electroplated on the external surface of the constituents of internal crusher gauges (UK-3 and UK-4). The basic material of the constituents for internal crusher gauges is stainless steel (È. 4770), and copper is plated on the strike. According to the previously applied technology, copper deposits obtained from the cyanide solution were used for the strike. Regarding strict ecological regulations for using cyanide solutions in plating shops, a new technology consisting of the electrolytic activation of the basic material surface and the electrodeposition of a thin nickel coating from the chloric solution is proposed. The possibility to apply this improved technology of copper plating on the constituents of internal crusher gauges was examined in the paper. The results of the effects of the input process parameters on the properties of deposits and on the electrodeposition rate were reported. Optimum conditions of copper plating on the constituents of internal crusher gauges were proposed.
Key words: copper plating technology, internal crusher gauges, copper electrolytic coating, stainless steel, deposit properties, electrodeposition rate. |