Electroless Nickel –
this process is bright and robust despite being free of lead and cadmium. It is a mid-phos electroless nickel process in the range of 6 to 8.
KTY Electroless Nickel –
from the research labs of Uyemura-Japan, this process
is the world’s first “heavy metal –free” electroless
nickel. Lead, cadmium and other
heavy metals traditionally used for adding brightness
and stability have been eliminated.
ACL-634 is a new through-hole cleaner for electroless nickel / immersion gold. This acid-type soaking cleaner is well suited for the pretreatment in electroless Ni/Au processes with NPT (Non-Plating Through Hole). ACL-634 removes palladium from NPTH, will not damage permanent resist, and rinses well with water.
Electroless Nickel Plating on Aluminum
ANP Electroless Nickel Plating for Aluminum –
substantially improves plating onto aluminum. Plating electroless nickel on aluminum has been problematic and costly due to short bath life. A normal EN bath
can plate steel for six to eight MTOs (36 - 48 g/l nickel plated). Plating into aluminum reduces that bath life by about 50%. The typical failure is poor adhesion of the nickel to the aluminum, resulting in blisters or nickel peel when the aluminum is bent.
Technology developed to address this problem of short bath life used an alkaline nickel strike after zincating and prior to the regular plating bath. Drawbacks to that approach include extra tanks, process steps, and control over an additional plating bath. Failures have also been seen with nickel-to-nickel bonding.
A further application-specific problem is that strike baths always deposit magnetic nickel, thereby limiting their use to applications where magnetism is not a factor.
Uyemura’s electroless nickel plating for aluminum provides excellent adhesion through at least six MTOs. The process does not employ a strike and adds no additional steps compared to normal aluminum preparation double zincating.
This important new development uses Uyemura’s lead and cadmium-free electroless nickel product in concert with proprietary cleaning, etching and zincating technologies.
ANP1012 electroless nickel plates nickel phosphorus alloys in the range of 10-12 weight percent phosphorus. It's ideal for applications requiring:
- A high degree of corrosion resistance
- A non-magnetic nickel finish
- Excellent wear resistance and a low contact friction finish
ANP1012 has excellent capacity to plate aluminum alloys with good adhesion using conventional zincate pretreatment practice.
ANP and ANP1012 electroless nickel processes are RoHS compatible. They were developed by the Uyemura Tech Center, Southington, CT.
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