Two-chamber furnace for countergravity casting

Details Two-chamber furnace for countergravity casting Two-chamber furnace for countergravity casting

1997-10-31

1999-09-07

Kastler, Scott

Metallurgical apparatus

Means for melting or vaporizing metal or treating liquefied...

With means to discharge molten material

222595, C21C 542

Patent

active

059483520

ABSTRACT:
A two-chamber furnace for the low pressure countergravity casting of metal wherein the first chamber is a molten metal supply chamber connected by a submerged orifice closable by a stopper rod valve to a sealed second chamber that is pressurizable to fill a superjacent mold. The stopper rod valve is readily replaceable from the top of the furnace without having to empty the melt from the furnace.

REFERENCES:
patent: 4668554 (1987-05-01), Thornton
patent: 4881670 (1989-11-01), Yamaoka et al.
patent: 5579821 (1996-12-01), Vander Jagt
patent: 5590681 (1997-01-01), Schaefer et al.
patent: 5662859 (1997-09-01), Noda
patent: 5700422 (1997-12-01), Usui et al.
European Search Report for EP Appln 97 20 3508 dated Mar. 9, 1998 corres to USSN 08/961,835.

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