View Single Post
  #8   Report Post  
Posted to rec.crafts.metalworking
J. Clarke
 
Posts: n/a
Default Can thermal shock crack cast iron?

Don Bruder wrote:

In article ,
"Jon Danniken" wrote:

"J. Clarke" wrote:
Another lesson--if you run water into hot steel or aluminum pan
sometimes the bottom will develop a curvature and the pan won't sit
flat anymore.


With the advent of the internet comes a number of pans put on the stove
and
left unattended for "just a minute" while email is checked, et cetera.
In
theory, this works fine; in practice, it leads to burnt pans. After a
few of these, I discovered that cold water in the hot pan would reduce
the amount of discoloration and resultant lack of smoothness in the pan.

Of course, the cold water in hot pan technique had quite unexpected
results on a copper bottom SS pan:
http://66.36.231.224/~jonnycat/Ecko.jpg

Jon


Without chasing the link, I'm gonna hazard a guess that you ended up
with a two-piece pan (and although you say "unexpected", I coulda told
ya that without trashing the cookware - It's simple physics in action.)


I shudder to think what happens to one of those "sandwich" pans that has an
aluminum core between two steel surfaces.



--
--John
to email, dial "usenet" and validate
(was jclarke at eye bee em dot net)