As its name suggests, Zinc-Nickel plating is an electro-depositon of zinc-nickel alloy containing between 10-15% of nickel.
Optimum corrosion resistance is achieved with 14% nickel.
The coating willingly accepts a wide variety of passivations which further improve the corrosion resistance of the coating. Highland Electroplaters can offer yellow passivation of components.
Zinc-nickel has several advantages over the other zinc alloy coatings. It offers Significantly improved corrosion protection at less deposit thickness, giving longer protection from corrosion.
Any corrosion that is produced is less voluminous, giving benefits particularly where fastenings or close tolerance components are plated. Zinc-nickel also has greater temperature stability, maintaining high levels of corrosion protection even after being heated.
Even though it is new technology zinc-nickel has already proved itself in the automotive and aerospace industries where it has allowed manufacturers to offer extended corrosion warranties.
It is also now being used in the offshore, oil and gas industry where it is mainly being used for stud fasteners and clamps.
Extensive in-house research & development during the latter part of the 1990’s and early 2000’s resulted in the creation of a “crushable” variation of our Zinc-Nickel alloy plating process .
Currently used within the compressor industry, the plating is applied to mating faces of male/female rotors thereby increasing the output efficiency (by some 2-3%) over that of conventional oil systems. Noise levels are also dramatically reduced making the compressor ideal for use in the generation of air conditioning within hospitals, shopping malls etc.