Technical ductile nickel plating:
By means of modern techniques we can obtain very smooth (intermediate) ductile nickel coatings with the capability to seal steel completely. Steel is often not homogeneous enough to impart the right substrate for fully closed hard coatings (such as hardened Lunac, HVOF ceramics or Hard chromium).
Important features and applications:
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This process is capable to close possible surface micro defects effectively, already with limited coating thickness. Because of a unique integration with our Lunac processes there is no de lamination issue between this intermediate nickel coating and a possible succeeding Lunac coating. This system offers an ultimate corrosion resistance for harsh climates such as marine conditions.
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Because the ductility of this coating is outstanding it imparts an additional corrosion protection to parts that can be slightly damaged (indented) during service, without loosing its corrosion protection capabilities automatically (The hard top layer can possibly crack, although without peeling off, but the intermediate nickel layer can elongate up to 30%).
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Our standard preparation process offers the same unparalleled high degree of coating bond to the substrate as to our Lunac coatings. This feature opens the opportunity for very thick repair or electroforming plating as well (> 500 µm / 0.02").
This extrusion caliber was worn out
over 700 µm / 0.028". With this high
purity speed nickelplating this caliber
was effectively renovated. 55 µm /
0.0021" Lunac 2+ was applied on top
of this nickel to reduce the wear rate
by an 80-fold.
The high ductility of the intermediate nickel coating and bond strength between the various layers is vital for applications in a harsh environment. Off shore equipment can suffer from corrosion as well as high indentation risk. A slightly damaged part can maintain its functionality by means of the ductile nickel sub layer that can still prevent the part from progressive corrosion.
