HITZEBESTAENDIGE TONERDEFASERMATTE.

摘要

A heat-resistant alumina fiber mat (10, 30) contains an accumulated mass (12) of alumina staple fibers and continuous alumina filaments (11, 15). The accumulated mass (12) is sewn with the continuous alumina filaments (11, 15). A process for producing a heat-resistant alumina fiber mat (10, 30) comprises accumulating a precursor of alumina staple fibers to obtain an accumulated mass (12), sewing the accumulated mass (12) with continuous filaments (11, 15) to give a sewn mass and then sintering the sewn mass. The continuous filaments (11, 15) may be continuous alumina filaments or a precursor thereof.