Furnace for vacuum arc melting of highly reactive metals

Details Furnace for vacuum arc melting of highly reactive metals Furnace for vacuum arc melting of highly reactive metals

1978-03-16

1980-04-15

Baldwin, Robert D.

Metal founding

Including means to directly apply magnetic force to work or...

By electromagnetic means

164151, 164252, 164348, 165104M, B22C 2702, B22C 2704

Patent

active

041979001

ABSTRACT:
A furnace including a cooled mould having its bottom sealed with a bottom plate and its top sealed with a cooled vacuum chamber fitted with a cover carrying an electrode holder movably fixed therein. Mounted in the cooling spaces of the furnace units, filled with a liquid-metal cooling agent, are tubular heat exchangers intercommunicating with each other to form a closed circulation circuit filled with a coolant which is chemically neutral to the liquid-metal cooling agent and to water. The cooling spaces of the furnace units are filled with a liquid-metal coolant and communicate with an expansion chamber, as well as with a water heat exchanger through a heat-transfer circuit. Arranged intermediate the mould inner wall and its tubular heat exchanger is a shield made in the form of a hollow cylindrical wall. Fixedly mounted intermediate the shield and the mould outer wall along multiple-thread helical lines are metal strips which form channels at the upper and lower sections thereof, and mounted opposite these channels externally of the mould are electromagnetic superchargers.

REFERENCES:
patent: 2903495 (1959-09-01), Dickson et al.
patent: 3159550 (1964-12-01), Laming
patent: 3291695 (1966-12-01), Merli
patent: 3713969 (1973-01-01), Cahill, Jr.
patent: 3900366 (1975-08-01), Sakaguchi
patent: 3968653 (1976-07-01), Cachera
patent: 3980284 (1976-09-01), Shigihara et al.

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