Continuous type atmosphere heat treating furnace

Details Continuous type atmosphere heat treating furnace Continuous type atmosphere heat treating furnace

1985-07-16

1986-12-09

Camby, John J.

Heating

Work chamber having heating means

Having means by which work is progressed or moved mechanically

432 72, 432144, 432198, 432199, 432209, 432239, F27B 902, F27B 504, F27B 514, F27D 704

Patent

active

046278141

ABSTRACT:
A continuous heat treating furnace for heat treating a ferrous metal work in a protective atmosphere, including a furnace separated into a charge chamber and a heat treating chamber by a partition door and provided with a transport device for transporting the work. A first heating device, a recirculating fan and a gas purge device are provided in the charge chamber, while a second heating device is provided in the heat treating chamber supplied with the protective atmosphere, whereby the work is preheated through convectional heat transfer in the charge chamber simultaneously with high-temperature purging of the charge chamber and then, is heat treated under the protective atmosphere in the heat treating chamber.

REFERENCES:
patent: 802517 (1905-10-01), Kugel
patent: 2167676 (1939-08-01), Pechy
patent: 2205258 (1940-06-01), Hansen
patent: 2713480 (1955-07-01), Ruckstahl
patent: 3850318 (1974-11-01), Wentworth
patent: 3982887 (1976-09-01), Kendziora et al.
patent: 4214869 (1980-07-01), Thekdi et al.

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