| 摘要 |
PURPOSE:To obtain the titled fibers, having a high tensile strength and useful for mats, etc., by softening a composition softening by heating, discharging the softened composition onto a rotating disk while pulsating the through-put and flying out the composition from the disk by centrifugal force to form fibers having knotlike bulge parts. CONSTITUTION:A composition of SiO2 and Al2O3 is softened in a vessel 4 having small holes 5 at the bottom by heating with heat radiation from a heater at 1,850 deg.C to give 1P viscosity and the composition is discharged from the small holes 5 onto a disk 1 rotating at 0.5-400m/sec peripheral speed to fly out and fiberize the composition from the disk 1 by centrifugal force. In the process, the through-put from the small holes 5 is adjusted by a flow rate adjusting rod 6 to pulsate the composition and afford the aimed fibers having knotlike bulge parts consisting of the same composition as that in the fibers and the ratio of the maximum diameter of the knotlike parts within the range of 0.1-10,000 and the ratio of the maximum diameter of the knotlike parts to the diameter of the fiber parts within the range of 1.2-200.
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