Hello!
Im thinking of building a induction furnace of about 2,5 kW! The electronics seem to be very simple to build! With a vacuum pump and a good chamber it should be possible to cheaply and cleanly melt just about every kind of metal or to make perfectly homogenuos alloys :D
http://www.richieburnett.co.uk/indheat.html
How would you solve the pouring in the closed chamber? I was thinking of using a solenoid to "pull the plug" in the bottom of the crucible. It would take much space to tilt the crucible and harder to get the pour in the right place :)
What kind of refractory should i use to be able to melt higher temperature metals? How high vacuum would i need? Will i need flux? What material should i use for crucible?
/Jay