Endothermic furnace

Details Endothermic furnace Endothermic furnace

1990-04-06

1991-12-24

Kastler, S.

Metallurgical apparatus

Means treating solid metal

By contact with gas

266252, C21D 106

Patent

active

050745336

ABSTRACT:
An endothermic furnace for sintering metal includes a pair of U-shaped retort tubes which are mounted to the underside of a flat, rectangular lid, the lid being removably secured along the respective top vertical edges of the furnace chamber sidewalls and the retorts being removable with the lid. Each tube carries a catalyst and receives a carbonaceous gas mixture that is either combusted externally or internally of the chamber, the gas reacting with the catalyst to produce a desired endothermic gas product which heats each tube whereby to radiantly heat the chamber and which is piped back into the heat chamber, when cooled, to provide an oxygen-free atmosphere for the heat treating chamber.

REFERENCES:
patent: 755867 (1904-03-01), Gesner
patent: 2254047 (1941-06-01), Roth
patent: 2589811 (1952-03-01), Holcroft
patent: 2763582 (1956-09-01), Rusciano
patent: 3517916 (1970-06-01), Ross et al.
patent: 4174097 (1979-11-01), Schwalm
patent: 4457493 (1984-07-01), Takahashi
"Powder Metallurgy Equipment Manual", Powder Metallurgy Equipment Association, Princeton, New Jersey, 12/1977.

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