The electrolytic alkaline branching process has the purpose of preparing the surfaces of the various parts to receive any further treatments (acid copper, nickel, chromium, brass, etc …).
Thicknesses from 1 to 3 microns can be made
The copper plating is applied exclusively by electroplating, done in electrolytic baths in which the object to be coppered acts as a cathode, while the anode is made of pure copper cathodes.
In alkaline baths the electrolyte is a solution of the complex cyanide Na₃Cu (CN) 4.
The alkaline baths lend themselves instead to the direct ramming/coppering of the iron / zamak, but give rise to deposits of a very modest thickness.
The copper plating is used both as a protection against atmospheric corrosion and to improve the adhesion and the protective value of a subsequently applied nickel plating.
Frequently copper plating is also used in electronics and in industrial electrotechnics for the production of printed circuits and for the covering of steel wires.
We can use alkaline copper for the preparation of the following materials:
- Cast iron after sandblasting
The maximum dimensions of the parts that we can work are 1600x1100x300.