Disc roll, method for producing the same, and disc member base material
AssigneeNichias Corporation
InventorsMasaaki Nakayama, Daiji Tahara, Masafumi Igo
Life of this patent
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Abstract
A disc roll includes a plurality of annular disc members each defining a hole and having a peripheral surface; and a rotary shaft fitted into the holes of the annular disc members by insertion, whereby the peripheral surfaces of the disc members serve as a conveying surface of the disc roll. The disc members include an inorganic fiber, mica and a clay having a content of particle components that have a particle size of 5 μm or larger of not higher than 30% by weight based on the weight of the clay.
Claims5
A plate-shaped disc member base material comprising an inorganic fiber, mica, and a kibushi clay having a content of particle components that have a particle size of 5 μm or larger of not higher than 30% by weight based on the weight of the kibushi clay,
- the kibushi clay being either elutriated or subjected to a wet sizing separation purification process, and the kibushi clay being configured to be sintered by heat applied thereto upon use of a disc roll formed therefrom to give a hardening action,
- wherein said kibushi clay has a content of impurities of 10% by weight or less based on the weight of the clay,
- wherein said inorganic fiber is present in an amount of 20 to 40% by weight based on the total weight of said disc member base material, and said kibushi clay is present in an amount of 20 to 40% by weight based on the total weight of said disc member base material, and
- wherein said mica is present in an amount of 20 to 35% by weight based on the total weight of the disc member base material.
Dependencies are inferred from the claim text.