Annealing furnace purging and oxidation system and method

Details Annealing furnace purging and oxidation system and method Annealing furnace purging and oxidation system and method

2007-06-05

2008-10-14

Kastler, Scott (Department: 1793)

Metallurgical apparatus

Means treating solid metal

By contact with gas

C266S250000

Reexamination Certificate

active

07435375

ABSTRACT:
In an improved annealing furnace for laminations having a purge vestibule and an oxidation section, atmosphere injection tubes with atmosphere injection jets are provided in the oxidation section at a conveyor directly beneath trays conveying the laminations. Atmosphere extraction tubes are also provided along with a fan which draws atmosphere from the extraction tubes and provides a pressure output to the atmosphere injection tubes. The speed of the fan may be variable.

REFERENCES:
patent: 6221501 (2001-04-01), Blotzer et al.
Two Drawings of a Dec. 1998 prior art lamination furnace for annealing laminations.
Effective Cooling of Components in Continuous Nitrogen-Hydrogen Atmosphere Furnace—Garg et al Industrial Heating/Feb. 1997.

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