If in the coating
companies diverse basic materials are coated the result is that
at working temperatures of 80 to 92 °C constant interactions
with the surfaces of the raw parts in such way take place that
corresponding pouring-, dragging- and other auxiliary means of
the surface-near layers of the raw parts are set free and get to
the electroless nickel bath.
Consequence: Due to
the increase of these “auxiliary means”, paired with an
increasing shelf life the deposited layers will be matt or
blockages/faulty coatings or other quality problems occur.
In many cases the
electroless nickel supplier is doubted. This is a big error !
Remedy: With an
a-carbon treatment these “auxiliary means” will be deprived
from the electroless nickel bath. Then the deposited layers are
flawless again !
Diverse approaches from
working under practical conditions are known.
important
aircrafts
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