Device for continuous thermal treatment of multidimensional shee

Details Device for continuous thermal treatment of multidimensional shee Device for continuous thermal treatment of multidimensional shee

1997-07-11

1999-10-19

Walberg, Teresa

Heating

Advancing structure flexing, looping or coiling sheet, web...

432 8, F27B 928

Patent

active

059677708

ABSTRACT:
A device for continuous thermal treatment of multidimensional sheet structures consisting of fibers (18) made of polyacrylonitrile or substantially polyacrylonitrile comprises a furnace (23) with chamber-like sections, through which sections the sheet structure is continuously moved on a gas permeable transport track (21). In each of the chamber-like sections there is a gas stream flowing through the sheet structure perpendicular to the sheet structure. In every section, devices measure the parameters of the gas stream temperature, pressure and gas flow above and below the sheet structure to control the operation of heating elements (26), fans (27) in the approach flow region, and fans (28) in the outflow regions of every section. These parameters are adjusted to predetermined values necessary for an effective and precise thermal treatment of the sheet structures (18).

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patent: 4591517 (1986-05-01), Whipple et al.
patent: 4789332 (1988-12-01), Ramsey et al.
patent: 4790749 (1988-12-01), Mauro
Fitzer, E., et al, Carbon 13:63-69 (1975) (Month Unknown).

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