Gas atmosphere heating furnace

Metallurgical apparatus – With control means responsive to sensed condition – With means supplying a treating agent

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Details

432198, 432199, 266257, 266252, F27B 940, C21D 900

Patent

active

044574932

ABSTRACT:
A furnace for heating steel articles and so on without oxidation and decarbonization. In the furnace, non-oxidation gas atmosphere with or without cementation characteristics is produced and regenerated by subjecting the air to carbon elements and heat at a reaction chamber provided within the furnace or closely thereto, and the gas atmosphere is circulated through a substantially closed circuit with the said reaction chamber connecting outtake and intake openings of the furnace.

REFERENCES:
patent: 1934614 (1933-11-01), Peterson
patent: 2084002 (1937-06-01), Peterson
patent: 2628830 (1953-02-01), Kerr
patent: 2818246 (1957-12-01), Kappel
patent: 3163694 (1964-12-01), Ipsen
patent: 3565409 (1971-02-01), Beck
patent: 4039794 (1977-08-01), Kasper
patent: 4191598 (1980-03-01), Conybean et al.
patent: 4245818 (1981-01-01), Elhaus et al.

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