Heat treating process, hood for carrying out this process, and i

Details Heat treating process, hood for carrying out this process, and i Heat treating process, hood for carrying out this process, and i

1986-05-30

1988-05-24

Yuen, Henry C.

Heating

Processes of heating or heater operation

Continous strip, strand or web passed longitudinally through...

432 59, 432 64, F27B 928, F26B 1900

Patent

active

047462892

ABSTRACT:
The process comprises creating a screen of non-reactive or inert gas at least at one of the two ends of the heat treating zone or cooling zone of a furnace, the screen being substantially homogeneous and laminar throughout its height. The use of this process permits, on the one hand, a reduction in the flows of gas necessary for the heat treating and, on the other hand, the division of the heat treating furnace into precise zones. The invention is particularly applicable to heat treating furnaces.

REFERENCES:
patent: 2668701 (1954-02-01), Dietrich
patent: 3223396 (1965-12-01), Thompson
patent: 3467366 (1969-09-01), Western
patent: 3744963 (1973-07-01), Flynn
patent: 3984197 (1976-10-01), Birke et al.
patent: 4217090 (1980-08-01), White et al.
patent: 4231167 (1980-11-01), Duris
patent: 4501553 (1985-02-01), Imose et al.
patent: 4551091 (1985-11-01), Paterson

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