Skull furnace for melting highly reactive metals under vacuum or

Details Skull furnace for melting highly reactive metals under vacuum or Skull furnace for melting highly reactive metals under vacuum or

1976-02-23

1977-12-27

Envall, Jr., R. N.

Metallurgical apparatus

Having means for contacting a solid metalliferous material...

With heating means, e.g., flame contact

13 31, 266275, F27D 706, F27D 900

Patent

active

040656349

ABSTRACT:
A skull furnace is provided with an expansion vessel filled with neutral gas and communicating with a cooling agent space made in the wall and bottom of a crucible. Used as a coolant is liquid metal cooling agent in which a tubular heat exchanger is immersed. The latter by its one end is connected with a cooling water inlet pipeline and by the other--with an outflow one. The heat exchanger may be constructed to have a double-layer wall with longitudinal passages having at their outlets cooling agent leakage indicators electrically connected with an alarm signalling device.

REFERENCES:
patent: 2960557 (1960-11-01), Beecher et al.
patent: 3078529 (1963-02-01), Cooper et al.
patent: 3108151 (1963-10-01), Garmy et al.

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