Base material for disk, process for producing the same, and disk roll
AssigneeNichias Corporation
InventorsOsamu Horiuchi, Kazuhisa Watanabe, Masaaki Nakayama
Life of this patent
Estimating the term…
Abstract
The present invention relates to a process for producing a base material for obtaining therefrom ring-shaped disks for use in a disk roll including a rotating shaft and the ring-shaped disks fitted thereon by insertion, whereby the peripheral surface of the disks serves as a conveying surface, the process including molding 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 300 mL/5 g or larger and which are amorphous or have a degree of crystallinity of 50% or lower.
Claims10
A disk roll comprising:
- a rotating shaft;
- and
- a plurality of ring-shaped disks that are fitted on the rotating shaft by insertion;
- the disks comprising,
- inorganic fibers which are amorphous or have a degree of crystallinity of 50% or lower and have an average fiber diameter of 4 to 7 μm, and
- at least one inorganic filler selected from mica, Kibushi clay, bentonite, alumina, cordierite, kaolin clay, talc, and combinations thereof,
- the disks having a recovery ratio of 10 to 100%, and
- the total of the inorganic fibers and the at least one inorganic filler being 90% by mass or more.
A process for producing a disk roll comprising:
- preparing a plurality of ring-shaped disks, and
- fitting the plurality of ring-shaped disks on a rotatable shaft by insertion;
- the disks comprising,
- inorganic fibers which are amorphous or have a degree of crystallinity of 50% or lower and have an average fiber diameter of 4 to 7 μm, and
- at least one inorganic filler selected from mica, Kibushi clay, bentonite, alumina, cordierite, kaolin clay, talc, and combinations thereof,
- the disks having a recovery ratio of 10 to 100%, and
- the total of the inorganic fibers and the at least one inorganic filler being 90% by mass or more.
Dependencies are inferred from the claim text.