I am building a small casting facility for casting titanium
jewelry. I need help understanding casting/refractory issues due to
high temperature oxidation problems with titanium....Can anyone
suggest an authority?
I spent some time looking into this several years ago. Ti casting
requires very high tech equipment to do safely. It is probably not a
good do it yourself project as it can cause fires and explosions if
it gets exposed to oxygen (air) when molten Also it reacts with
most refractory materials when it is molten and some fairly
spectacular reactions can occur. Most Ti is melted in what is called
a skull furnace which uses belive it or not a water cooled copper
crucible with a thin “skull” or lining of Ti and lots of
electricity to get the Ti to melt while all that heat is being
pulled away by the water cooling. I have seen some dental Ti
casting machines that are table top units they are very pricey, in
the multi tens of thousands of dollars. One I just looked at cast a
whole 50 grams of Ti at a time!
For more info contact dental labs to find one doing TI they have the
most experience with casting it.
James Binnion Metal Arts
Phone (360) 756-6550
Toll Free (877) 408 7287
Fax (360) 756-2160
Member of the Better Business Bureau