Marshall,
Actually, the term investment casting refers to the ceramic "investment"
that serves as the mold.
Some metals, such as titanium which reacts violently with oxygen at high
temperatures, must be poured in vacuum. The crucible and the mold are
placed in a large vacuum tank. The metal is heated through induction
and then the entire tank is tilted to allow the metal to flow out of the
crucible and into the mold.
This should not be confused with the various vacuum forming techniques
used with plastics.
Hope this helps.
-Scott Rackey
Marshall Burns wrote:
>
> Kai Uwe Koch wrote:
>
> > here are two addresses of companies located in Germany for small
> > vacuum-casting equipment:
>
> That's not the same thing. Please correct me if I'm wrong, but I
> understand vacuum casting to typically work in polyurethane, whereas
> investment casting is for metals.
>
> --
> Marshall Burns
> Marshall@Ennex.com
>
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-- _______________________________________________ Scott Rackey BurstPower Technologies sprackey@ix.netcom.com23 Crescent Hill Avenue Arlinton MA, 02174
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For more information about the rp-ml, see http://ltk.hut.fi/rp-ml/
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