Device for heat-treating metallic work pieces in a vacuum

Details Device for heat-treating metallic work pieces in a vacuum Device for heat-treating metallic work pieces in a vacuum

1996-03-29

1998-03-03

Bennett, Henry A.

Heating

Work chamber having heating means

Having means by which work is progressed or moved mechanically

432137, 432128, 432153, 266251, F27B 902, F27B 918, F27B 926

Patent

active

057228256

ABSTRACT:
A device for heat-treating metallic workpieces in a vacuum has a revolving vacuum furnace with an inlet transfer lock for introducing a batch of workpieces into the revolving vacuum furnace and with an outlet transfer lock for removing the batch of workpieces from the revolving vacuum furnace. The revolving vacuum furnace has also an annular turntable for transporting the batch of workpieces from the inlet transfer lock to the outlet transfer lock. At least one carburization furnace, for carburization treatment of the batch of workpieces, is connected to the revolving vacuum furnace at least at a peripheral location of the revolving vacuum furnace between the inlet transfer lock and the outlet transfer lock in the direction of transportation of the batch of workpieces. The annular turntable transports the batch of workpieces to the at least one carburization furnace.

REFERENCES:
patent: 4622006 (1986-11-01), Hohne
patent: 4938458 (1990-07-01), Nakajima
patent: 5143558 (1992-09-01), Smith

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