METHOD AND APPARATUS FOR PRODUCING GRAPHITE FIBER

Title:

METHOD AND APPARATUS FOR PRODUCING GRAPHITE FIBER

Document Type and Number:

Japanese Patent JP2007224430

Kind Code:

A

Abstract:

To provide a method and an apparatus for producing graphite fibers by which the growth of silicon carbide is suppressed and spreading breakage during yarn breakage is suppressed to achieve a remarkable improvement in productivity of the graphite fibers in the method for producing the graphite fibers.

The method for producing the graphite fibers is carried out by continuously baking a plurality of fibers which are to be graphitized and simultaneously run side by side in a high-temperature furnace having ≥2,000°C temperature. The method is characterized in that a movable high-temperature and heat-resistant material is arranged between the fibers to be graphitized and a muffle upper wall of a graphite material composing the high-temperature furnace and the distance between the muffle upper wall and the high-temperature and heat-resistant material is within the range of 5-15 mm.

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Inventors:

SUEHIRO TAKEO
FUJITA MITSUNORI
OKAMURA MASAYUKI

Application Number:

JP2006043509A

Publication Date:

September 06, 2007

Filing Date:

February 21, 2006

Export Citation:

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Assignee:

TORAY INDUSTRIES

International Classes:

D01F9/22; D01F9/32

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