What Kinds of Nickel Anode are Best for Nickel Electroplating?

What Kinds of Nickel Anode are Best for Nickel Electroplating?

The major functions of nickel anodes in electroplating are to conduct the electric current to the electrolyte; replace the nickel ions discharged at the cathode, distribute current as uniformly as possible over the cathode surface.

To achieve these requirements, the anodes should be of a suitable size, shape, and composition, and positioned to optimize the uniform distribution of current. In a good installation, the anodes will be closely spaced along the anode bar and located opposite the plating racks. To avoid excessive current flow to the bottom of the plating racks, it is desirable to install anodes slightly shorter than the racks. Similarly, it is often helpful to position the anodes away from the edges of the plating racks (particularly the end rack in the tank), to reduce the current flow to the edge of the rack, and to position parts in the middle of the rack, closer to the anode than at the top and bottom.Good electrical contact with the anode bar must be maintained at all times. Anodes consisting of nickel metal are preferred in order to replenish the nickel ions and to simplify solution control.