| 摘要 |
PROBLEM TO BE SOLVED: To provide a glass fiber manufacturing apparatus which remarkably improves the manufacturing efficiency of glass fiber by removing bubbles during glass melting, to provide a glass fiber manufacturing method capable of obtaining the homogeneous glass fiber by using the apparatus, and to provide the glass fiber of a high grade obtained by the method. SOLUTION: In the glass fiber manufacturing apparatus 10, a heat resistant nozzle 13 is provided on a base 12 of a heat resistant container 11, and spins the glass fiber F by continuously drawing out molten glass G from the heat resistant nozzle 1. A pressure resistant gas introducing tube 20 for introducing helium R or neon into an upper space of the molten glass G stagnating in the heat resistant nozzle 1 is installed. The method for manufacturing the glass fiber comprises introducing the helium or the neon into the heat resistant container 11, maintaining and adjusting the internal pressure of the container, continuously drawing out the molten glass G from the heat resistant nozzle 13 to spin the glass fiber F. The glass fiber F is manufactured by the glass fiber manufacturing method and has a fiber diameter of >3μm and <9μm. COPYRIGHT: (C)2009,JPO&INPIT
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