Vacuum carburizing furnace

Metallurgical apparatus – With control means responsive to sensed condition – With pressure sensor

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266252, C21D 174

Patent

active

041666100

ABSTRACT:
A vacuum carburizing furnace wherein the concentration of carburizing gas in the furnace atmosphere as well as the furnace pressure may be maintained within predetermined ranges for optimum carburization, and the carburizing atmosphere is forced to circulate by a fan within the heating chamber so that parts or articles may be uniformly carburized.

REFERENCES:
patent: 2818246 (1957-12-01), Kappel
patent: 2886478 (1959-05-01), Beard
patent: 3025044 (1962-03-01), Giler
patent: 3041058 (1962-06-01), Straumann et al.
patent: 3782705 (1974-01-01), Westeren et al.

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