ARC FURNACE FOR MELTING REACTIVE REFRACTORY METALS
A description is given of a method for melting reactive refractory metals and of the furnace used for the process. The process consists in feeding, in a liquid, powdered, gaseous, vaporous, or flowing thermolabile condition, a compound of a metal that can be vaporized and/or decomposed by heat through the bore of a ccoled hollow electrode into the arc formed in an electric arc furnace operating under a vacuum-or low pressure or in the presence of an inert gas under pressure. The compound is gasified or vaporized and/or chemically decomposed, leaving the metal in a molten pool, the gaseous product being continuously removed from the furnace. The arc furnace consists of a furnace chamber, a nonconsumable liquid-cooled hollow electrode having a bore suited to the introduction of the thermolabile metal compound, a liquid-cooled crucible or mold in which the molten metal is received, and a circulating pumping system for creating a vacuum or low pressure within the furnace chamber and for extracting the products of decomposition. High purity molten titanium, zirconium, nickel, beryllium, molybdenum, tungsten, silicon, and germanium are obtained by this method. (N.W.R.)
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-15-023862
- OSTI ID:
- 4032057
- Report Number(s):
- GB 871715
- Resource Relation:
- Other Information: Orig. Receipt Date: 31-DEC-61
- Country of Publication:
- United Kingdom
- Language:
- English
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