Grant, I see this all the time at work, but never considered myself smart
enough to come up with an answer that wouldn't show how dumb I really am!!
But it does make some sense, though so does the condensation theory. When
we heat thick pieces at the welding shop (like 2-4" thick), it weeps like
you mention. But the other day I was warming up a piece of 5/8" stainless
with a propane torch, the shop air was unusually cool (58 degrees), and the
surface of the plate was so wet it was practically dripping on the floor.
Beats me. Guys at work expound both theories...I figure I'll probably die
without ever knowing the truth!
Wally / Templeton, MA
53 3100 rod project
>
> I may have been asleep in physics class that day. My non-scientific
> understanding of these things would make me doubt that the part of the
steel
> being heated would occasion condensation. Doesn't heat encourage the
water
> to stay in suspension? I'd think that the heated portion would be less
> likely to promote condensation than the cool edges, but the water appears
> precisely in the heated areas and then evaporates.
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