[SI-LIST] zincor EMI contact
- From: Jan Vercammen <jan.vercammen1@xxxxxxxx>
- To: si-list@xxxxxxxxxxxxx
- Date: Wed, 14 Apr 2004 09:24:03 +0200
SI-list,
I have a question concerning Zincor, which I think is a trade name for
steel coated with zinc. The zinc will protect the steel (iron) from
oxidation.
Because it is lower in the electrochemical table zinc oxide will protect
the iron.
The steel is coated with a thickness of 2.5 to 5 microns (data from
manufacturers).
The question is about a zincor chassis which we want to contact with Be Cu
fingers. Do the fingers penetrate the zinc oxide in a reproducible and
consistent
manner?
When we install the fingers they penetrate because the radiated emissions
of a fire-wire cable are reduced by about 10-15dB. But this is but a
snapshot
of the present situation.
We do not know if the BeCu finger to Zincor chassis contact is
reproducible and maintains good performance in a office environment
over a life time of at least 1 year or more.
I can imagine that EMC engineers have encountered similar problems before.
Any experience, lessons learned or published literature to share??
Kind regards,
Jan Vercammen
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