Quenching arrangement for a furnace

Details Quenching arrangement for a furnace Quenching arrangement for a furnace

1991-03-11

1992-06-16

Roy, Upendra

Metallurgical apparatus

Means treating solid metal

Having evacuated chamber

266251, 266259, C21D 900

Patent

active

051219034

ABSTRACT:
The present arrangement provides for having the plenum divided into at least two sections. One section dumps quench gas from a first direction into the hot zone chamber during a first period and the other section dumps quench gas into the hot zone from an opposite direction during a second period whereby the cooling is relatively uniform. During the quenching operation the quenching gas is drawn from the hot zone chamber through a heat exchange and is returned therefrom to a loop through the hot zone chamber in touch with the workpiece. Direction flow gates control the alternate use of the two plenum.

REFERENCES:
patent: 3301541 (1967-01-01), Ipsen
patent: 4171126 (1979-10-01), Zahn et al.
patent: 4195820 (1980-04-01), Berg
patent: 4462577 (1984-07-01), Westeren
patent: 4610435 (1986-09-01), Pfau et al.
patent: 4634103 (1987-01-01), Schmetz et al.
patent: 4709904 (1987-12-01), Schmetz et al.
patent: 4860222 (1975-01-01), Tennenhouse

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