Base material for disk, process for producing the same, and disk roll

摘要

A process for producing a base material for disks including forming a raw slurry material into a platy shape and drying the plate, the raw slurry material containing inorganic fibers which have a wet volume of about 300 mL/5 g or larger and which are amorphous or have a degree of crystallinity of about 50% or lower.

主权项

1. A disk for use in a disk roll comprising a rotating shaft and ring-shaped disks fitted thereon by insertion, whereby the peripheral surface of the ring-shaped disks serves as a conveying surface,
the disk consisting essentially of more than 30% by mass to about 70% by mass of mullite fibers comprising Al2O3 and SiO2 in a ratio that Al2O3:SiO2 is from about 60: about 40 to about 99: about 1, about 2% by mass to about 30% by mass of Kibushi clay, 2% by mass to 20% by mass of bentonite, more than 25% by mass to about 40% by mass of mica, and optionally one or more members selected from an organic binder, organic fibers and a flocculant.