Furnace for the thermal treatment of iron and steel components

Details Furnace for the thermal treatment of iron and steel components Furnace for the thermal treatment of iron and steel components

1989-05-31

1990-11-13

Walberg, Teresa J.

Electric heating

Heating devices

Combined with container, enclosure, or support for material...

219411, 392478, H05B 362, F27D 704

Patent

active

049703722

ABSTRACT:
A furnace for the thermal treatment of charges of iron and steel components. A cylindrical, vertical heating chamber is disposed within a housing. A plurality of vertical heating elements are disposed in the heating chamber. To accelerate the heating-up of a charge that is disposed within the heating chamber, especially in the lower temperature range, the heating elements have a tubular construction and are provided at their bottom end with an outlet opening. Gas conveyed by a fan flows through the heating elements, at which time it is convectively heated, and thereafter passes into the interior of the heating chamber. In the higher temperature range, the heating elements transfer their heat to the charge as radiant heat, with the furnace then operating in a vacuum.

REFERENCES:
patent: 845051 (1907-02-01), Von Brockdorff
patent: 1809227 (1931-06-01), Baily
patent: 4233494 (1980-11-01), Pawlik

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