| 摘要 |
PURPOSE:To provide the titled fiber composed of silica, alumina and vanadium pentoxide, having low shot content in the state of fiber, causing little falling off of shot, giving a blanket, etc., having high heat-insulation and producible in high productivity. CONSTITUTION:A composition 7 composed of silica, alumina and vanadium pentoxide is filled and melted in a vessel 6 having a thin nozzle 5 at the bottom and placed in a furnace 4. The molten composition 7 is extruded by lifting a rod having a sharp conical end with cone angle of 30 deg. and plugging the thin nozzle 5 from above. A rotor 1 is heated at 1,800 deg.C with a heater 3 and rotated at a high speed to fibrillate the composition and obtain the objective ceramic fiber having a shot content of <=10wt.% in the state of fiber.
|
