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Fri, 23 Jan 2009 01:58:00 -0500 |
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>So my observation is that beeswax that has been heated for
a long time or at elevated temps is
much more prone to shrinkage and tunneling in molds.
>Can anyone explain what the variable I am seeing is? Is there
a scientific explanation or qualitative
measure that can be used to explain this difference I am seeing?
I can't be specific as to beeswax, but some general rules apply.
I want to point out one oddity, first... You made it sound as if
the shrinkage effect happens, but is delayed, as opposed to
happening normally [excessively] with greater heat. That is odd.
But possible.
Generally I can say 2 things.
1) Some things (chemical actions) occur fast. You/it reaches
a level of voltage or temperature or concentration, and, Voillle'!
ShaBoom! It all comes together.
2) With heat, volatiles emerge. Heat, can be 70F.
Heat and volitiles mean lost mass & "what I will call, buoyancy..."
Density, lost from evaporation of volatiles.
Just thoughts. Slower bonds do seem the stronger, though.
Metals are cooled slowly for strength, and fast, for hardness
which means, [short-lived] brittleness.
Now, a brittle wax, shrinking ANY, would be more apt to
tunnel... eh? Comments MOST welcome...!
HNY!
BillSF9c
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