Zinc Nickel Plating Vs Cadmium Plating

When the industry was looking for a viable replacement to cadmium they tried zinc electroplate.

Zinc nickel plating vs cadmium plating.

The argument for an equivalent to cadmium plate has been going round and round. In electronics zinc nickel is used to plate connectors where zinc nickel has been used as a direct cadmium replacement. Nickel plating has high hardness is easy to polish has high light reflectivity and can increase aesthetics. Nickel to iron is a cathodic coating and copper is an anodic coating.

In 1956 over 60 percent of all cadmium was used for coating iron or steel. To overcome this shortcoming multi layer metal plating can be used and nickel is the intermediate layer. Zinc alloys zinc cobalt zinc nickel zinc iron and tin zinc are the most common substitutes. In search of alternatives.

The disadvantage is that it has porosity. Zinc nickel can also provide high temperature corrosion protection about 500 f where many other finishes begin to fall off in performance. In conclusion zinc plating and nickel plating are very important processes in the industry. A discussion started in 2002 but continuing through 2019.

We are currently looking for an alternative to cadmium plated parts. However over the years this has decreased to as little as 7 percent in 2006 and materials like zinc nickel plating are seeing more and more use. In industrial terms plating refers to the coating of a conductive material with a metal. Common specifications for zinc nickel are found throughout vehicle manufacturing industry and astm b841 or ams 2417.

Zn ni alloy coatings usually composed of approximately 85 zinc and 15 nickel are electroplated on carbon steel as a protective coating in a process similar to the way zinc coatings are applied. Main difference cadmium plating vs zinc plating. Zinc nickel provides performance for the cost premium relative to zinc and cadmium plating. 2 since then zinc nickel technology has become increasingly popular in other industries.

Developed an acid zinc nickel plating process in 1992 as an alternative to cadmium plating in aerospace applications. Zinc nickel is used to plate fasteners for use in high corrosion areas under the hood and chassis joints. Zinc nickel alloy plating with 10 to 14 nickel in the deposit provides a corrosion resistant solution. Zinc nickel delivers corrosion resistance and high electrical conductivity.

Summary zinc vs nickel plating. It is very important to not specify cadmium plating indiscriminately because of its health effects in fact it is prohibited from many applications in many countries.