John,

     Why not use Loctite on the hardware, or use  locknuts? Also, experiment

   with different torques on the hardware with a shake table.

 Michael Hiteshew
 Lockheed Martin Launching Systems
 [log in to unmask]
 (410) 682-1259


> Subject:      [TN] CEM 1 vs G10
>
> I am looking for a comparison of (3) board types.
> Advantages/Disadvantages.
> suitable applications, etc.  The (3) types are paper phenolic, CEM 1 and
> G10.  We are presently purchasing a product that uses a paper phenolic
> board.  The board has large components such as transformers and heat
> sinks.
> We are finding that the reliability is poor when the assembled product is
> transported due to components vibrating loose.  We are reasonably sure
> that
> G10 boards will help the problem.  We are not sure of the CEM 1 board
> characteristics.  If someone could help with a comparison of the three it
> would be greatly appreciated.  The operating temperature range requirement
> is 0 to 60 degrees C.
>
> Thanks,
> John Curtis
> Diebold Inc.
> North Canton, Ohio
>
>
>

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