| 摘要 |
<p>A method and apparatus for threading acrylic filaments (2) on rollers (5,6) of an oxidizing furnace (1), wherein (a) the atmospheric temperature in the furnace (1) is maintained at 180°C to the oxidizing temperature, (b) the tips of said filaments (2) are fastened to a filament-fastening bar (28) spanning a pair of chains (19R,19L) which engage chain wheels (5(n)R,5(n)L,6(n)R,6(n)L) provided at both ends of each roller freely rotatable against the roller, (c) the chains (19R,19L) are moved, thereby said filament-fastening bar (28) attached to the chains being moved from the entrance (11) to the exit (12) of the furnace (1) and the filaments (2) being threaded on the rollers (5,6), and (d) the moving speed of the chains (19R,19L) is controlled with progress of heat-treatment of the filaments (2) so as to match the behaviour of shrinkage and elongation of the filaments (2).</p> |
