Method for producing multi-component glass fiber preform
AssigneesNippon Telegraph & Telephone Public Corporation, The Fujikura Cable Works, Ltd.
InventorsShiro Takahashi, Kazuo Sanada, Koichi Inada, Osamu Fukuda
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Abstract
A method for producing a multi-component glass fiber preform which comprises the steps of nebulizing an aqueous solution of at least one metal salt, and reacting the nebulized solution and a gaseous glass raw material with oxygen gas at a high temperature to produce particulate glass material deposited on a substrate. Apparatus for producing such a preform is also disclosed.
Claims11
A method for producing a multi-component glass fiber preform which comprises the steps of:
- (1) nebulizing an aqueous solution of at least one metal salt by supersonic vibration, and
- (2) reacting the nebulized solution and a gaseous glass raw material with oxygen at a high temperature to produce particulate glass material deposited on a substrate.
A method of producing a multi-component glass fiber preform which comprises:
- (1) nebulizing an aqueous solution of at least one metal salt with supersonic vibration;
- (2) introducing the thus nebulized solution from step (1) and an oxygen gas separately through individual concentric units of a burner which together with a gaseous glass raw material react at a high temperature to produce particulate glass material;
- and
- (3) directing the thus-produced particulate glass material onto a bar substrate while concurrently axially rotating and moving the bar along its axis.
Dependencies are inferred from the claim text.