Disk and process for producing base material for disk, and disk roll

Patent metadata

Field	Value
Publication number	US-9040139-B2
Application number	US-201414191766-A
Country	US
Kind code	B2
Filing date	Feb 27, 2014
Priority date	May 19, 2010
Publication date	May 26, 2015
Grant date	May 26, 2015

Abstract

The present invention relates to a process for producing a base material for disks of disk rolls, in which the disk roll contains a rotating shaft and a plurality of the disks fitted on the rotating shaft by insertion whereby the outer peripheral surface of the disks serves as a conveying surface, in which the process contains molding a slurry raw material containing inorganic fibers, an inorganic filler having an aspect ratio of from 1 to 25 and an inorganic binder into a plate shape; and drying the molded plate.

First claim

What is claimed is:

1. A process for producing a disk roll comprising:
preparing disks,
the disks comprising mullite fibers, an inorganic filler having an aspect ratio of from 1 to 25, and an inorganic binder,
the inorganic filler being wollastonite,
the mullite fibers containing Al 2 O 3 and SiO 3 in a ratio of from 70:30 to 80:20,
the inorganic binder being Kibushi clay and bentonite,
the disks comprising from 30 to 50% by mass of the mullite fibers, from 20 to 50% by mass of the inorganic filler and from 20 to 40% by mass of the inorganic binder, the disks not comprising mica; and
fitting the disks on a rotatable shaft by insertion whereby an outer peripheral surface of the disks serves as a conveying surface.

2. The process according to claim 1 , wherein the disk roll has a packing density of the disks of from 0.6 to 1.6 g/cm 3 .

3. The process according to claim 1 , wherein the inorganic binder further comprises one or more selected from refractory clay, silica sol, and alumina sol.

Assignees

• Nichias Corp

Inventors

• Watanabe Kazuhisa
• Iwata Kouji
• Nakayama Masaaki

Classifications

• C04B2235/96

  Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance · CPC title

• C04B2235/5436

  micrometer sized, i.e. from 1 to 100 micron · CPC title

• C04B14/4656

  Al-silicates, e.g. clay · CPC title

• C04B35/22

  rich in calcium oxide {, e.g. wollastonite (C04B35/195 takes precedence)} · CPC title

• C04B14/303

  Alumina · CPC title