Patent ID: 6862901
Filing Date: 2005-03-08
Classification: C03B,D01D,Y02P

Abstract:
1. A process for producing glass fiber comprising: heating and rotating a hollow cylinder-shaped rotating member having a peripheral wall provided with orifices so as to rotate molten glass in the rotating member, and ejecting the molten glass through the orifices by centrifugal force to form glass fiber, characterized in ejecting the molten glass through a larger orifice and a smaller orifice arranged alternately in a circumferential direction of the rotating member in the peripheral wall, so as to form two types of primary streams having different length, introducing said primary streams into a flame flow around the rotating member, said flame flow being ejected in a direction substantially parallel with a generatrix direction of an outer circumference of the peripheral wall, so as to fine said primary streams to form secondary fibers, and ejecting compressed fluid in a direction at an acute angle relative to the flame flow including secondary fibers, to collide the secondary fibers with the compressed fluid so as to cut the secondary fibers to control a length of the secondary fibers.