I seem to recall using circuit resin cleaner to get the oil off after. I heated the oil in a shallow pan, and put them in and out with hot dog tongs.
These boards did not have surface mount parts. I don't recall any problem with parts falling off, we kept the boards parts up in and out of the oil.
Stefan Trethan wrote:
> but how did you get the oil off after?
> i mean this sounds very messy...
>
> but a interesting idea to use another "heating medium" than air.
> may be much faster and shorter heating time in oil because it stores more
> heat / doesn't insulate so well...
>
> you put the circuit in when it was already hot?
> but how to get it out not causing the parts to slide around (ok not so much
> a problem with through hole....)
>
> st
>
> On Sat, 20 Sep 2003 10:07:33 -0400, Don Perry <mojo@...> wrote:
>
> > Reading your letter, I thought I might throw this out to you, years ago
> > I used to reflow poor solder cards by heating peanut oil, yes peanut
> > oil, in a flat pan. It can take the heat and melt solder. I have not
> > done it a long time. But it worked. I am sure you need to take
> > cautions for burns and fires. I use my grill outside for questionable
> > oven/wife work. Sounds a bit strange but it beat chasing intermittent
> > cold solder bugs. The cards had pins not flow through holes, TTL and
> > RTL ckts. Just a thought. - Perry
> >
> > Markus Zingg wrote:
> >
> >> >I hope this link takes -- it's a pic of the toaster oven PCB in
> >> >progress -- as you can see one of the 2k resistors slid a little bit
> >> >when I removed the board "hot" from the oven.
> >> >http://www.diyaudio.com/forums/showthread.php?
> >> >s=&threadid=13023&perpage=15&highlight=toaster&pagenumber=2
> >>
> >> Thanks for the link - looks good :) Do you also have a picture of the
> >> oven itself? I'm asking cause the oven you use is likely not to be
> >> available where I live (europe) but a similar one might would do.
> >>
> >> Then, is there a time saving in doing it this way? I could imagine
> >> that placing the parts onto solder paste and especially moving the pcb
> >>
> >> into the oven might be terribly critical - no? So far I hand soldered
> >> all my boards but I agree that it takes quite a while so I'm of course
> >>
> >> interested in potential improvements.
> >>
> >> Markus
> >>
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