PRODUCTION METHOD FOR CONTINUOUS ALUMINA FIBER BLANKET

Title:

PRODUCTION METHOD FOR CONTINUOUS ALUMINA FIBER BLANKET

Document Type and Number:

WIPO Patent Application WO/2002/095116

Kind Code:

A1

Abstract:

A continuous sheet (W) of alumina fiber precursor formed from a compound-containing spinning solution is continuously fed into a high-temperature heating furnace, and is heat treated while being conveyed in one direction by a plurality of conveying mechanisms (2, 3) disposed in the heating furnace. During the heat treating, the conveying mechanisms are decelerated in the conveying direction in conformity with the heat shrinkage of the continuous sheet (W), whereby the wear-out of fibers in the alumina fiber precursor is reduced to obtain a continuous alumina fiber blanket having uniform thickness and bulk density and being excellent in strength.

Inventors:

SHOJI MAMORU (JP)
IKEDA NORIO (JP)
SASAKI TOSHIAKI (JP)

Application Number:

PCT/JP2002/005003

Publication Date:

November 28, 2002

Filing Date:

May 23, 2002

Export Citation:

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Assignee:

MITSUBISHI CHEM FUNCTIONAL PRO (JP)
SHOJI MAMORU (JP)
IKEDA NORIO (JP)
SASAKI TOSHIAKI (JP)

International Classes:

D01F9/08; (IPC1-7): D06C7/04; D01F9/08

Foreign References:

JPS5545808A	1980-03-31
EP0971057A1	2000-01-12
JPH05132824A	1993-05-28
JPS6278216A	1987-04-10
JPH0849155A	1996-02-20

Other References: