ELECTROPLATING MOTOR VEHICLE PARTS WITH SLOTOLOY 10 ZINC-NICKEL ALLOY.

As conventional zinc-nickel electrolytes for strip plating have poor throwing power, they are not suitable for vat or barrel parts. For these applications, a new electrolyte had to be developed which could satisfy the following criteria: - (a) a constant alloy composition across a wide current density range, (b) a cathodic current output of nearly 100 per cent to stop unwanted increased concentration of metals in the electrolyte and to prevent hydrogen evolution, and (c) a good metal distribution to obtain even plating. Research has shown that these conditions have been met by a chloride-base electrolyte containing ammonium, Slotology 10.