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Electroless
nickel layers are in all rule nickel phosphorus alloys.On chemically
reductive way takes place the deposition from nickel
with phosphorus storages. World wide upto 96 % sodium hypophosphite is
used as reducing agent from which also phosphorus orginates.
Approx. 2 %
of all deposited en layers are nickel boron alloys whereby here different
organic boranes serves as reduction agents.
Further
approx. 2 % contain next to Ni-P or Ni-B the installation of solids like SiC, B4C,
diamonds or in addition teflon.
Due to
these layer compositions there are in relation to electrolytic nickel
layers corresponding functional advantages which different branches of
industry use.
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Why using
electroless nickel layers ?
In relation to
electrolytic
layers even layer distribution all over the surface
Layers very corrosion resistant
- among other things with special food
authenticity
In the deposition status three times harder
than electrolytic nickel - by
warmth treatment approx. seven times
Outstanding characteristics regarding friction and wear protection
Pronounced barrier layer function between non-ferrous metals and precious
metals such as gold, silver, tin
By different crystal structures electroless nickel - laminarly - plus
typical hard chrome structure still better characteristic spectrum of
layer
High layer
thicknesses how it is during the complete hard chromium plating can be reduced by combinations - for example 30
µm en plus 30 µm hard chromium
to
the main page
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what
is electroless nickel plating
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User industry
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| Automobile |
| Mechanical engineering |
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Air and space travel |
| Chemistry, plastic, paper |
| Oil, natural gas |
| Electronics, telecommunications |
| Mining industry, hydraulics |
| Compressors, pumps, armatures |
 
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