BASE MATERIAL FOR DISK, PROCESS FOR PRODUCING THE SAME, AND DISK ROLL

摘要

PROBLEM TO BE SOLVED: To provide a disk roll which does not cause disk separations and cracks, even when rapidly cooled and is excellent in spalling resistance.

SOLUTION: The base material for disks is obtained by molding a raw slurry material containing inorganic fibers which have a wet volume of 300 ml/5g or larger and are amorphous or have a degree of crystallinity of 50% or lower into a platy shape and drying the plate. The base material for disks is punched out into a ring shape to obtain disk materials. A plurality of the disk materials are fitted on a rotating shaft by insertion to obtain a disk roll.

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