Vacuum furnace for heat treatment

Details Vacuum furnace for heat treatment Vacuum furnace for heat treatment

1982-06-09

1983-11-29

Rutledge, L. Dewayne

Metallurgical apparatus

Means treating solid metal

Having evacuated chamber

432239, C21D 174, F27B 914

Patent

active

044177224

ABSTRACT:
A vacuum furnace for heat treatment comprises a heating furnace proper, pre-exhaust chambers, one adapted to feed a workpiece into the furnace proper therefrom and the other adapted to discharge the workpiece out of the oven proper thereinto, vacuum valves for partitioning between the oven proper and the respective pre-exhaust chambers, and a line assembly for deliver of the workpiece from the feed chamber into the discharge chamber through the furnace proper. A heating chamber forming part of the furnace proper is positioned on the upper part above the deliver line assembly, and an externally operable elevating means is disposed in the furnace proper. The work pieces carried by the delivery line assembly, and lifted to the heating chamber where it is heated.

REFERENCES:
patent: 2023126 (1935-12-01), Fahrenwald
patent: 2028479 (1936-01-01), Spicer
patent: 2189983 (1940-02-01), Harris
patent: 2507076 (1950-05-01), Wilde
patent: 3014708 (1961-12-01), Helin
patent: 3124634 (1964-03-01), Westeren et al.
patent: 3606287 (1969-11-01), Bielefeldt
patent: 3778221 (1973-12-01), Bloom

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