"Stephen R. Gregory" wrote:

> Hey all...
>
> The last couple of weeks have been interesting to say the least as far as my
> wave soldering goes...(Hey Joyce! Any openings at your new place?...gofer',
> janitor, anything?... ;^)...).
>
> You may have read about my problems with the way pins connect to inner planes
> and all that, but now the last few days I've been trying to wave assemblies
> that have metal heat-sinks bonded to the top of the PCB with the PTH
> components installed on top of the heat-sink and then into the PCB...
>
> Again, I've tried everything that my feeble mind (at this point) can possibly
> do to wave these bloody things...
>
> I'm thinking that designs such as these cannot be wave soldered with any good
> results. Am I wrong in thinking that? Do these designs have to be hand built?
> Am I just spinning my wheels trying to wave solder them?
>
> Gawd, I'm getting beat-up by so many people because I can't figure out how to
> wave these pieces of...of...of..."work"...
>
> -Steve Gregory-

Hi Steve,
            All I can say is  "Have Fun". We have a similar problem on gas arrestors on
one of our designs. We cheated and got a production concesion for the midle pins which
where not soldering. ;-). Agresive Flux, Lots of preheat, slow conveyor, Big old long
deep dip into the solder bath, is about  all I can sugest.  I finally got  our problem
solved  sort of, we get "suficiant" rise (not consistant or good) but boy that poor
old  FR4 gets  nice and hot.........

                Peter  T....

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