| 摘要 |
<p>The present invention relates to a method for extruding small vegetal parts, mainly wood parts mixed with binders. During the extrusion (1), the small parts are compressed by a piston (4) from a filling area (3) and through a forming vessel and through a heated curing canal (5). In order to substantially reduce the length of the curing canal (5) as well as the curing time, steam is applied from the outside onto the already compressed and cured rod at the outer area thereof, the surrounding of said rod being adequately sealed. The steam flows through the heated outer layer of the rod and entails a brisk temperature rise inside said rod due to the condensation within the latter. The rapid curing of the binder makes it possible to substantially reduce the length of the curing canal (5) as well as the curing time.</p> |
