| 摘要 |
PURPOSE: To obtain the subject device for compression molding fine carbon fibers by a vapor-phase method and continuously heat-treating the compression molded fine carbon fibers in a nonoxidizing atmosphere in excellent thermal efficiency. CONSTITUTION: Fine carbon fibers 1 containing a tar component and having 0.1-0.5μm fiber diameter and 10-100μm length obtained by thermally decomposing an organic compound such as benzene are fed to a hopper 2, supplied to a cylinder 16 by a pushing machine 15, pressed by a piston 17,and compression molded by a cylinder 5 and a piston 4 into a fixed shape. A damper 7 is opened and molded articles 9 are sent to a furnace core pipe 10 in a nonoxidizing atmosphere with a counter flow of an argon gas. The processes are successively carried out, the molded articles 9 are sent in turn to the furnace core pipe 10 and continuously heat-treated by a heater 8 enclosing the furnace core pipe 10.
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